nbdkit-1.42.2/ 0000755 0001750 0001750 00000000000 14771247244 006630 5 nbdkit-1.42.2/html/ 0000755 0001750 0001750 00000000000 14771247240 007570 5 nbdkit-1.42.2/html/pod.css 0000644 0001750 0001750 00000004645 14534316443 011014 /* CSS to make pod2html files look a little bit better. */
body {
margin-left: 4em;
}
body p, body ul, ol, body dl {
margin-left: 2em;
width: 31em;
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pre {
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color: rgb(204,0,0);
font-weight: 550;
border-left: 6px solid rgb(204,64,64);
padding: 6px;
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font-size: 120%;
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/* Bold, italic in man pages. */
b, strong {
color: rgb(204,0,0);
}
i, em {
color: rgb(204,0,0);
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/* Name heading. */
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font-weight: bold;
color: rgb(204,0,0);
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nbdkit-1.42.2/m4/ 0000755 0001750 0001750 00000000000 14771247240 007144 5 nbdkit-1.42.2/m4/ax_pthread.m4 0000644 0001750 0001750 00000054034 14534316443 011452 # ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_pthread.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
# This macro figures out how to build C programs using POSIX threads. It
# sets the PTHREAD_LIBS output variable to the threads library and linker
# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
# flags that are needed. (The user can also force certain compiler
# flags/libs to be tested by setting these environment variables.)
#
# Also sets PTHREAD_CC and PTHREAD_CXX to any special C compiler that is
# needed for multi-threaded programs (defaults to the value of CC
# respectively CXX otherwise). (This is necessary on e.g. AIX to use the
# special cc_r/CC_r compiler alias.)
#
# NOTE: You are assumed to not only compile your program with these flags,
# but also to link with them as well. For example, you might link with
# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
# $PTHREAD_CXX $CXXFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
#
# If you are only building threaded programs, you may wish to use these
# variables in your default LIBS, CFLAGS, and CC:
#
# LIBS="$PTHREAD_LIBS $LIBS"
# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
# CC="$PTHREAD_CC"
# CXX="$PTHREAD_CXX"
#
# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
# has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to
# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
#
# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
# PTHREAD_PRIO_INHERIT symbol is defined when compiling with
# PTHREAD_CFLAGS.
#
# ACTION-IF-FOUND is a list of shell commands to run if a threads library
# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
# is not found. If ACTION-IF-FOUND is not specified, the default action
# will define HAVE_PTHREAD.
#
# Please let the authors know if this macro fails on any platform, or if
# you have any other suggestions or comments. This macro was based on work
# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
# Alejandro Forero Cuervo to the autoconf macro repository. We are also
# grateful for the helpful feedback of numerous users.
#
# Updated for Autoconf 2.68 by Daniel Richard G.
#
# LICENSE
#
# Copyright (c) 2008 Steven G. Johnson
# Copyright (c) 2011 Daniel Richard G.
# Copyright (c) 2019 Marc Stevens
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see .
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 31
AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
AC_DEFUN([AX_PTHREAD], [
AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_PROG_SED])
AC_LANG_PUSH([C])
ax_pthread_ok=no
# We used to check for pthread.h first, but this fails if pthread.h
# requires special compiler flags (e.g. on Tru64 or Sequent).
# It gets checked for in the link test anyway.
# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then
ax_pthread_save_CC="$CC"
ax_pthread_save_CFLAGS="$CFLAGS"
ax_pthread_save_LIBS="$LIBS"
AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"])
AS_IF([test "x$PTHREAD_CXX" != "x"], [CXX="$PTHREAD_CXX"])
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS])
AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes])
AC_MSG_RESULT([$ax_pthread_ok])
if test "x$ax_pthread_ok" = "xno"; then
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
fi
CC="$ax_pthread_save_CC"
CFLAGS="$ax_pthread_save_CFLAGS"
LIBS="$ax_pthread_save_LIBS"
fi
# We must check for the threads library under a number of different
# names; the ordering is very important because some systems
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
# libraries is broken (non-POSIX).
# Create a list of thread flags to try. Items with a "," contain both
# C compiler flags (before ",") and linker flags (after ","). Other items
# starting with a "-" are C compiler flags, and remaining items are
# library names, except for "none" which indicates that we try without
# any flags at all, and "pthread-config" which is a program returning
# the flags for the Pth emulation library.
ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
# The ordering *is* (sometimes) important. Some notes on the
# individual items follow:
# pthreads: AIX (must check this before -lpthread)
# none: in case threads are in libc; should be tried before -Kthread and
# other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64
# (Note: HP C rejects this with "bad form for `-t' option")
# -pthreads: Solaris/gcc (Note: HP C also rejects)
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
# doesn't hurt to check since this sometimes defines pthreads and
# -D_REENTRANT too), HP C (must be checked before -lpthread, which
# is present but should not be used directly; and before -mthreads,
# because the compiler interprets this as "-mt" + "-hreads")
# -mthreads: Mingw32/gcc, Lynx/gcc
# pthread: Linux, etcetera
# --thread-safe: KAI C++
# pthread-config: use pthread-config program (for GNU Pth library)
case $host_os in
freebsd*)
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
ax_pthread_flags="-kthread lthread $ax_pthread_flags"
;;
hpux*)
# From the cc(1) man page: "[-mt] Sets various -D flags to enable
# multi-threading and also sets -lpthread."
ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags"
;;
openedition*)
# IBM z/OS requires a feature-test macro to be defined in order to
# enable POSIX threads at all, so give the user a hint if this is
# not set. (We don't define these ourselves, as they can affect
# other portions of the system API in unpredictable ways.)
AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING],
[
# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
AX_PTHREAD_ZOS_MISSING
# endif
],
[AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])])
;;
solaris*)
# On Solaris (at least, for some versions), libc contains stubbed
# (non-functional) versions of the pthreads routines, so link-based
# tests will erroneously succeed. (N.B.: The stubs are missing
# pthread_cleanup_push, or rather a function called by this macro,
# so we could check for that, but who knows whether they'll stub
# that too in a future libc.) So we'll check first for the
# standard Solaris way of linking pthreads (-mt -lpthread).
ax_pthread_flags="-mt,-lpthread pthread $ax_pthread_flags"
;;
esac
# Are we compiling with Clang?
AC_CACHE_CHECK([whether $CC is Clang],
[ax_cv_PTHREAD_CLANG],
[ax_cv_PTHREAD_CLANG=no
# Note that Autoconf sets GCC=yes for Clang as well as GCC
if test "x$GCC" = "xyes"; then
AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG],
[/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
# if defined(__clang__) && defined(__llvm__)
AX_PTHREAD_CC_IS_CLANG
# endif
],
[ax_cv_PTHREAD_CLANG=yes])
fi
])
ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
# Note that for GCC and Clang -pthread generally implies -lpthread,
# except when -nostdlib is passed.
# This is problematic using libtool to build C++ shared libraries with pthread:
# [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25460
# [2] https://bugzilla.redhat.com/show_bug.cgi?id=661333
# [3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=468555
# To solve this, first try -pthread together with -lpthread for GCC
AS_IF([test "x$GCC" = "xyes"],
[ax_pthread_flags="-pthread,-lpthread -pthread -pthreads $ax_pthread_flags"])
# Clang takes -pthread (never supported any other flag), but we'll try with -lpthread first
AS_IF([test "x$ax_pthread_clang" = "xyes"],
[ax_pthread_flags="-pthread,-lpthread -pthread"])
# The presence of a feature test macro requesting re-entrant function
# definitions is, on some systems, a strong hint that pthreads support is
# correctly enabled
case $host_os in
darwin* | hpux* | linux* | osf* | solaris*)
ax_pthread_check_macro="_REENTRANT"
;;
aix*)
ax_pthread_check_macro="_THREAD_SAFE"
;;
*)
ax_pthread_check_macro="--"
;;
esac
AS_IF([test "x$ax_pthread_check_macro" = "x--"],
[ax_pthread_check_cond=0],
[ax_pthread_check_cond="!defined($ax_pthread_check_macro)"])
if test "x$ax_pthread_ok" = "xno"; then
for ax_pthread_try_flag in $ax_pthread_flags; do
case $ax_pthread_try_flag in
none)
AC_MSG_CHECKING([whether pthreads work without any flags])
;;
*,*)
PTHREAD_CFLAGS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\1/"`
PTHREAD_LIBS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\2/"`
AC_MSG_CHECKING([whether pthreads work with "$PTHREAD_CFLAGS" and "$PTHREAD_LIBS"])
;;
-*)
AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag])
PTHREAD_CFLAGS="$ax_pthread_try_flag"
;;
pthread-config)
AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
AS_IF([test "x$ax_pthread_config" = "xno"], [continue])
PTHREAD_CFLAGS="`pthread-config --cflags`"
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
;;
*)
AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag])
PTHREAD_LIBS="-l$ax_pthread_try_flag"
;;
esac
ax_pthread_save_CFLAGS="$CFLAGS"
ax_pthread_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
# Check for various functions. We must include pthread.h,
# since some functions may be macros. (On the Sequent, we
# need a special flag -Kthread to make this header compile.)
# We check for pthread_join because it is in -lpthread on IRIX
# while pthread_create is in libc. We check for pthread_attr_init
# due to DEC craziness with -lpthreads. We check for
# pthread_cleanup_push because it is one of the few pthread
# functions on Solaris that doesn't have a non-functional libc stub.
# We try pthread_create on general principles.
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include
# if $ax_pthread_check_cond
# error "$ax_pthread_check_macro must be defined"
# endif
static void *some_global = NULL;
static void routine(void *a)
{
/* To avoid any unused-parameter or
unused-but-set-parameter warning. */
some_global = a;
}
static void *start_routine(void *a) { return a; }],
[pthread_t th; pthread_attr_t attr;
pthread_create(&th, 0, start_routine, 0);
pthread_join(th, 0);
pthread_attr_init(&attr);
pthread_cleanup_push(routine, 0);
pthread_cleanup_pop(0) /* ; */])],
[ax_pthread_ok=yes],
[])
CFLAGS="$ax_pthread_save_CFLAGS"
LIBS="$ax_pthread_save_LIBS"
AC_MSG_RESULT([$ax_pthread_ok])
AS_IF([test "x$ax_pthread_ok" = "xyes"], [break])
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
done
fi
# Clang needs special handling, because older versions handle the -pthread
# option in a rather... idiosyncratic way
if test "x$ax_pthread_clang" = "xyes"; then
# Clang takes -pthread; it has never supported any other flag
# (Note 1: This will need to be revisited if a system that Clang
# supports has POSIX threads in a separate library. This tends not
# to be the way of modern systems, but it's conceivable.)
# (Note 2: On some systems, notably Darwin, -pthread is not needed
# to get POSIX threads support; the API is always present and
# active. We could reasonably leave PTHREAD_CFLAGS empty. But
# -pthread does define _REENTRANT, and while the Darwin headers
# ignore this macro, third-party headers might not.)
# However, older versions of Clang make a point of warning the user
# that, in an invocation where only linking and no compilation is
# taking place, the -pthread option has no effect ("argument unused
# during compilation"). They expect -pthread to be passed in only
# when source code is being compiled.
#
# Problem is, this is at odds with the way Automake and most other
# C build frameworks function, which is that the same flags used in
# compilation (CFLAGS) are also used in linking. Many systems
# supported by AX_PTHREAD require exactly this for POSIX threads
# support, and in fact it is often not straightforward to specify a
# flag that is used only in the compilation phase and not in
# linking. Such a scenario is extremely rare in practice.
#
# Even though use of the -pthread flag in linking would only print
# a warning, this can be a nuisance for well-run software projects
# that build with -Werror. So if the active version of Clang has
# this misfeature, we search for an option to squash it.
AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread],
[ax_cv_PTHREAD_CLANG_NO_WARN_FLAG],
[ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown
# Create an alternate version of $ac_link that compiles and
# links in two steps (.c -> .o, .o -> exe) instead of one
# (.c -> exe), because the warning occurs only in the second
# step
ax_pthread_save_ac_link="$ac_link"
ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g'
ax_pthread_link_step=`AS_ECHO(["$ac_link"]) | sed "$ax_pthread_sed"`
ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)"
ax_pthread_save_CFLAGS="$CFLAGS"
for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
AS_IF([test "x$ax_pthread_try" = "xunknown"], [break])
CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
ac_link="$ax_pthread_save_ac_link"
AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
[ac_link="$ax_pthread_2step_ac_link"
AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
[break])
])
done
ac_link="$ax_pthread_save_ac_link"
CFLAGS="$ax_pthread_save_CFLAGS"
AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no])
ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
])
case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in
no | unknown) ;;
*) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;;
esac
fi # $ax_pthread_clang = yes
# Various other checks:
if test "x$ax_pthread_ok" = "xyes"; then
ax_pthread_save_CFLAGS="$CFLAGS"
ax_pthread_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
AC_CACHE_CHECK([for joinable pthread attribute],
[ax_cv_PTHREAD_JOINABLE_ATTR],
[ax_cv_PTHREAD_JOINABLE_ATTR=unknown
for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ],
[int attr = $ax_pthread_attr; return attr /* ; */])],
[ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break],
[])
done
])
AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \
test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \
test "x$ax_pthread_joinable_attr_defined" != "xyes"],
[AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE],
[$ax_cv_PTHREAD_JOINABLE_ATTR],
[Define to necessary symbol if this constant
uses a non-standard name on your system.])
ax_pthread_joinable_attr_defined=yes
])
AC_CACHE_CHECK([whether more special flags are required for pthreads],
[ax_cv_PTHREAD_SPECIAL_FLAGS],
[ax_cv_PTHREAD_SPECIAL_FLAGS=no
case $host_os in
solaris*)
ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS"
;;
esac
])
AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
test "x$ax_pthread_special_flags_added" != "xyes"],
[PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
ax_pthread_special_flags_added=yes])
AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
[ax_cv_PTHREAD_PRIO_INHERIT],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]],
[[int i = PTHREAD_PRIO_INHERIT;
return i;]])],
[ax_cv_PTHREAD_PRIO_INHERIT=yes],
[ax_cv_PTHREAD_PRIO_INHERIT=no])
])
AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \
test "x$ax_pthread_prio_inherit_defined" != "xyes"],
[AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])
ax_pthread_prio_inherit_defined=yes
])
CFLAGS="$ax_pthread_save_CFLAGS"
LIBS="$ax_pthread_save_LIBS"
# More AIX lossage: compile with *_r variant
if test "x$GCC" != "xyes"; then
case $host_os in
aix*)
AS_CASE(["x/$CC"],
[x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
[#handle absolute path differently from PATH based program lookup
AS_CASE(["x$CC"],
[x/*],
[
AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])
AS_IF([test "x${CXX}" != "x"], [AS_IF([AS_EXECUTABLE_P([${CXX}_r])],[PTHREAD_CXX="${CXX}_r"])])
],
[
AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])
AS_IF([test "x${CXX}" != "x"], [AC_CHECK_PROGS([PTHREAD_CXX],[${CXX}_r],[$CXX])])
]
)
])
;;
esac
fi
fi
test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
test -n "$PTHREAD_CXX" || PTHREAD_CXX="$CXX"
AC_SUBST([PTHREAD_LIBS])
AC_SUBST([PTHREAD_CFLAGS])
AC_SUBST([PTHREAD_CC])
AC_SUBST([PTHREAD_CXX])
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test "x$ax_pthread_ok" = "xyes"; then
ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
:
else
ax_pthread_ok=no
$2
fi
AC_LANG_POP
])dnl AX_PTHREAD
nbdkit-1.42.2/m4/libtool.m4 0000644 0001750 0001750 00001127764 14771245443 011017 # libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
#
# Copyright (C) 1996-2001, 2003-2019, 2021-2022 Free Software
# Foundation, Inc.
# Written by Gordon Matzigkeit, 1996
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
m4_define([_LT_COPYING], [dnl
# Copyright (C) 2014 Free Software Foundation, Inc.
# This is free software; see the source for copying conditions. There is NO
# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# GNU Libtool is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of of the License, or
# (at your option) any later version.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program or library that is built
# using GNU Libtool, you may include this file under the same
# distribution terms that you use for the rest of that program.
#
# GNU Libtool is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .
])
# serial 59 LT_INIT
# LT_PREREQ(VERSION)
# ------------------
# Complain and exit if this libtool version is less that VERSION.
m4_defun([LT_PREREQ],
[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1,
[m4_default([$3],
[m4_fatal([Libtool version $1 or higher is required],
63)])],
[$2])])
# _LT_CHECK_BUILDDIR
# ------------------
# Complain if the absolute build directory name contains unusual characters
m4_defun([_LT_CHECK_BUILDDIR],
[case `pwd` in
*\ * | *\ *)
AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;;
esac
])
# LT_INIT([OPTIONS])
# ------------------
AC_DEFUN([LT_INIT],
[AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK
AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_BEFORE([$0], [LT_LANG])dnl
AC_BEFORE([$0], [LT_OUTPUT])dnl
AC_BEFORE([$0], [LTDL_INIT])dnl
m4_require([_LT_CHECK_BUILDDIR])dnl
dnl Autoconf doesn't catch unexpanded LT_ macros by default:
m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl
m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl
dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4
dnl unless we require an AC_DEFUNed macro:
AC_REQUIRE([LTOPTIONS_VERSION])dnl
AC_REQUIRE([LTSUGAR_VERSION])dnl
AC_REQUIRE([LTVERSION_VERSION])dnl
AC_REQUIRE([LTOBSOLETE_VERSION])dnl
m4_require([_LT_PROG_LTMAIN])dnl
_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}])
dnl Parse OPTIONS
_LT_SET_OPTIONS([$0], [$1])
# This can be used to rebuild libtool when needed
LIBTOOL_DEPS=$ltmain
# Always use our own libtool.
LIBTOOL='$(SHELL) $(top_builddir)/libtool'
AC_SUBST(LIBTOOL)dnl
_LT_SETUP
# Only expand once:
m4_define([LT_INIT])
])# LT_INIT
# Old names:
AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT])
AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_PROG_LIBTOOL], [])
dnl AC_DEFUN([AM_PROG_LIBTOOL], [])
# _LT_PREPARE_CC_BASENAME
# -----------------------
m4_defun([_LT_PREPARE_CC_BASENAME], [
# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
func_cc_basename ()
{
for cc_temp in @S|@*""; do
case $cc_temp in
compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;;
distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;;
\-*) ;;
*) break;;
esac
done
func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
}
])# _LT_PREPARE_CC_BASENAME
# _LT_CC_BASENAME(CC)
# -------------------
# It would be clearer to call AC_REQUIREs from _LT_PREPARE_CC_BASENAME,
# but that macro is also expanded into generated libtool script, which
# arranges for $SED and $ECHO to be set by different means.
m4_defun([_LT_CC_BASENAME],
[m4_require([_LT_PREPARE_CC_BASENAME])dnl
AC_REQUIRE([_LT_DECL_SED])dnl
AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
func_cc_basename $1
cc_basename=$func_cc_basename_result
])
# _LT_FILEUTILS_DEFAULTS
# ----------------------
# It is okay to use these file commands and assume they have been set
# sensibly after 'm4_require([_LT_FILEUTILS_DEFAULTS])'.
m4_defun([_LT_FILEUTILS_DEFAULTS],
[: ${CP="cp -f"}
: ${MV="mv -f"}
: ${RM="rm -f"}
])# _LT_FILEUTILS_DEFAULTS
# _LT_SETUP
# ---------
m4_defun([_LT_SETUP],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl
AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl
dnl
_LT_DECL([], [host_alias], [0], [The host system])dnl
_LT_DECL([], [host], [0])dnl
_LT_DECL([], [host_os], [0])dnl
dnl
_LT_DECL([], [build_alias], [0], [The build system])dnl
_LT_DECL([], [build], [0])dnl
_LT_DECL([], [build_os], [0])dnl
dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([LT_PATH_LD])dnl
AC_REQUIRE([LT_PATH_NM])dnl
dnl
AC_REQUIRE([AC_PROG_LN_S])dnl
test -z "$LN_S" && LN_S="ln -s"
_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl
dnl
AC_REQUIRE([LT_CMD_MAX_LEN])dnl
_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl
_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl
dnl
m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_CHECK_SHELL_FEATURES])dnl
m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl
m4_require([_LT_CMD_RELOAD])dnl
m4_require([_LT_DECL_FILECMD])dnl
m4_require([_LT_CHECK_MAGIC_METHOD])dnl
m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl
m4_require([_LT_CMD_OLD_ARCHIVE])dnl
m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
m4_require([_LT_WITH_SYSROOT])dnl
m4_require([_LT_CMD_TRUNCATE])dnl
_LT_CONFIG_LIBTOOL_INIT([
# See if we are running on zsh, and set the options that allow our
# commands through without removal of \ escapes INIT.
if test -n "\${ZSH_VERSION+set}"; then
setopt NO_GLOB_SUBST
fi
])
if test -n "${ZSH_VERSION+set}"; then
setopt NO_GLOB_SUBST
fi
_LT_CHECK_OBJDIR
m4_require([_LT_TAG_COMPILER])dnl
case $host_os in
aix3*)
# AIX sometimes has problems with the GCC collect2 program. For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
if test set != "${COLLECT_NAMES+set}"; then
COLLECT_NAMES=
export COLLECT_NAMES
fi
;;
esac
# Global variables:
ofile=libtool
can_build_shared=yes
# All known linkers require a '.a' archive for static linking (except MSVC and
# ICC, which need '.lib').
libext=a
with_gnu_ld=$lt_cv_prog_gnu_ld
old_CC=$CC
old_CFLAGS=$CFLAGS
# Set sane defaults for various variables
test -z "$CC" && CC=cc
test -z "$LTCC" && LTCC=$CC
test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
test -z "$LD" && LD=ld
test -z "$ac_objext" && ac_objext=o
_LT_CC_BASENAME([$compiler])
# Only perform the check for file, if the check method requires it
test -z "$MAGIC_CMD" && MAGIC_CMD=file
case $deplibs_check_method in
file_magic*)
if test "$file_magic_cmd" = '$MAGIC_CMD'; then
_LT_PATH_MAGIC
fi
;;
esac
# Use C for the default configuration in the libtool script
LT_SUPPORTED_TAG([CC])
_LT_LANG_C_CONFIG
_LT_LANG_DEFAULT_CONFIG
_LT_CONFIG_COMMANDS
])# _LT_SETUP
# _LT_PREPARE_SED_QUOTE_VARS
# --------------------------
# Define a few sed substitution that help us do robust quoting.
m4_defun([_LT_PREPARE_SED_QUOTE_VARS],
[# Backslashify metacharacters that are still active within
# double-quoted strings.
sed_quote_subst='s/\([["`$\\]]\)/\\\1/g'
# Same as above, but do not quote variable references.
double_quote_subst='s/\([["`\\]]\)/\\\1/g'
# Sed substitution to delay expansion of an escaped shell variable in a
# double_quote_subst'ed string.
delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
# Sed substitution to delay expansion of an escaped single quote.
delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
# Sed substitution to avoid accidental globbing in evaled expressions
no_glob_subst='s/\*/\\\*/g'
])
# _LT_PROG_LTMAIN
# ---------------
# Note that this code is called both from 'configure', and 'config.status'
# now that we use AC_CONFIG_COMMANDS to generate libtool. Notably,
# 'config.status' has no value for ac_aux_dir unless we are using Automake,
# so we pass a copy along to make sure it has a sensible value anyway.
m4_defun([_LT_PROG_LTMAIN],
[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl
_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir'])
ltmain=$ac_aux_dir/ltmain.sh
])# _LT_PROG_LTMAIN
## ------------------------------------- ##
## Accumulate code for creating libtool. ##
## ------------------------------------- ##
# So that we can recreate a full libtool script including additional
# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS
# in macros and then make a single call at the end using the 'libtool'
# label.
# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS])
# ----------------------------------------
# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later.
m4_define([_LT_CONFIG_LIBTOOL_INIT],
[m4_ifval([$1],
[m4_append([_LT_OUTPUT_LIBTOOL_INIT],
[$1
])])])
# Initialize.
m4_define([_LT_OUTPUT_LIBTOOL_INIT])
# _LT_CONFIG_LIBTOOL([COMMANDS])
# ------------------------------
# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later.
m4_define([_LT_CONFIG_LIBTOOL],
[m4_ifval([$1],
[m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS],
[$1
])])])
# Initialize.
m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS])
# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS])
# -----------------------------------------------------
m4_defun([_LT_CONFIG_SAVE_COMMANDS],
[_LT_CONFIG_LIBTOOL([$1])
_LT_CONFIG_LIBTOOL_INIT([$2])
])
# _LT_FORMAT_COMMENT([COMMENT])
# -----------------------------
# Add leading comment marks to the start of each line, and a trailing
# full-stop to the whole comment if one is not present already.
m4_define([_LT_FORMAT_COMMENT],
[m4_ifval([$1], [
m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])],
[['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.])
)])
## ------------------------ ##
## FIXME: Eliminate VARNAME ##
## ------------------------ ##
# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?])
# -------------------------------------------------------------------
# CONFIGNAME is the name given to the value in the libtool script.
# VARNAME is the (base) name used in the configure script.
# VALUE may be 0, 1 or 2 for a computed quote escaped value based on
# VARNAME. Any other value will be used directly.
m4_define([_LT_DECL],
[lt_if_append_uniq([lt_decl_varnames], [$2], [, ],
[lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name],
[m4_ifval([$1], [$1], [$2])])
lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3])
m4_ifval([$4],
[lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])])
lt_dict_add_subkey([lt_decl_dict], [$2],
[tagged?], [m4_ifval([$5], [yes], [no])])])
])
# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION])
# --------------------------------------------------------
m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])])
# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...])
# ------------------------------------------------
m4_define([lt_decl_tag_varnames],
[_lt_decl_filter([tagged?], [yes], $@)])
# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..])
# ---------------------------------------------------------
m4_define([_lt_decl_filter],
[m4_case([$#],
[0], [m4_fatal([$0: too few arguments: $#])],
[1], [m4_fatal([$0: too few arguments: $#: $1])],
[2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)],
[3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)],
[lt_dict_filter([lt_decl_dict], $@)])[]dnl
])
# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...])
# --------------------------------------------------
m4_define([lt_decl_quote_varnames],
[_lt_decl_filter([value], [1], $@)])
# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...])
# ---------------------------------------------------
m4_define([lt_decl_dquote_varnames],
[_lt_decl_filter([value], [2], $@)])
# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...])
# ---------------------------------------------------
m4_define([lt_decl_varnames_tagged],
[m4_assert([$# <= 2])dnl
_$0(m4_quote(m4_default([$1], [[, ]])),
m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]),
m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))])
m4_define([_lt_decl_varnames_tagged],
[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])])
# lt_decl_all_varnames([SEPARATOR], [VARNAME1...])
# ------------------------------------------------
m4_define([lt_decl_all_varnames],
[_$0(m4_quote(m4_default([$1], [[, ]])),
m4_if([$2], [],
m4_quote(lt_decl_varnames),
m4_quote(m4_shift($@))))[]dnl
])
m4_define([_lt_decl_all_varnames],
[lt_join($@, lt_decl_varnames_tagged([$1],
lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl
])
# _LT_CONFIG_STATUS_DECLARE([VARNAME])
# ------------------------------------
# Quote a variable value, and forward it to 'config.status' so that its
# declaration there will have the same value as in 'configure'. VARNAME
# must have a single quote delimited value for this to work.
m4_define([_LT_CONFIG_STATUS_DECLARE],
[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`'])
# _LT_CONFIG_STATUS_DECLARATIONS
# ------------------------------
# We delimit libtool config variables with single quotes, so when
# we write them to config.status, we have to be sure to quote all
# embedded single quotes properly. In configure, this macro expands
# each variable declared with _LT_DECL (and _LT_TAGDECL) into:
#
# ='`$ECHO "$" | $SED "$delay_single_quote_subst"`'
m4_defun([_LT_CONFIG_STATUS_DECLARATIONS],
[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames),
[m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])])
# _LT_LIBTOOL_TAGS
# ----------------
# Output comment and list of tags supported by the script
m4_defun([_LT_LIBTOOL_TAGS],
[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl
available_tags='_LT_TAGS'dnl
])
# _LT_LIBTOOL_DECLARE(VARNAME, [TAG])
# -----------------------------------
# Extract the dictionary values for VARNAME (optionally with TAG) and
# expand to a commented shell variable setting:
#
# # Some comment about what VAR is for.
# visible_name=$lt_internal_name
m4_define([_LT_LIBTOOL_DECLARE],
[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1],
[description])))[]dnl
m4_pushdef([_libtool_name],
m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl
m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])),
[0], [_libtool_name=[$]$1],
[1], [_libtool_name=$lt_[]$1],
[2], [_libtool_name=$lt_[]$1],
[_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl
m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl
])
# _LT_LIBTOOL_CONFIG_VARS
# -----------------------
# Produce commented declarations of non-tagged libtool config variables
# suitable for insertion in the LIBTOOL CONFIG section of the 'libtool'
# script. Tagged libtool config variables (even for the LIBTOOL CONFIG
# section) are produced by _LT_LIBTOOL_TAG_VARS.
m4_defun([_LT_LIBTOOL_CONFIG_VARS],
[m4_foreach([_lt_var],
m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)),
[m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])])
# _LT_LIBTOOL_TAG_VARS(TAG)
# -------------------------
m4_define([_LT_LIBTOOL_TAG_VARS],
[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames),
[m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])])
# _LT_TAGVAR(VARNAME, [TAGNAME])
# ------------------------------
m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])])
# _LT_CONFIG_COMMANDS
# -------------------
# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of
# variables for single and double quote escaping we saved from calls
# to _LT_DECL, we can put quote escaped variables declarations
# into 'config.status', and then the shell code to quote escape them in
# for loops in 'config.status'. Finally, any additional code accumulated
# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
m4_defun([_LT_CONFIG_COMMANDS],
[AC_PROVIDE_IFELSE([LT_OUTPUT],
dnl If the libtool generation code has been placed in $CONFIG_LT,
dnl instead of duplicating it all over again into config.status,
dnl then we will have config.status run $CONFIG_LT later, so it
dnl needs to know what name is stored there:
[AC_CONFIG_COMMANDS([libtool],
[$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])],
dnl If the libtool generation code is destined for config.status,
dnl expand the accumulated commands and init code now:
[AC_CONFIG_COMMANDS([libtool],
[_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])])
])#_LT_CONFIG_COMMANDS
# Initialize.
m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT],
[
# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
sed_quote_subst='$sed_quote_subst'
double_quote_subst='$double_quote_subst'
delay_variable_subst='$delay_variable_subst'
_LT_CONFIG_STATUS_DECLARATIONS
LTCC='$LTCC'
LTCFLAGS='$LTCFLAGS'
compiler='$compiler_DEFAULT'
# A function that is used when there is no print builtin or printf.
func_fallback_echo ()
{
eval 'cat <<_LTECHO_EOF
\$[]1
_LTECHO_EOF'
}
# Quote evaled strings.
for var in lt_decl_all_varnames([[ \
]], lt_decl_quote_varnames); do
case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
*[[\\\\\\\`\\"\\\$]]*)
eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
;;
*)
eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
;;
esac
done
# Double-quote double-evaled strings.
for var in lt_decl_all_varnames([[ \
]], lt_decl_dquote_varnames); do
case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
*[[\\\\\\\`\\"\\\$]]*)
eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
;;
*)
eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
;;
esac
done
_LT_OUTPUT_LIBTOOL_INIT
])
# _LT_GENERATED_FILE_INIT(FILE, [COMMENT])
# ------------------------------------
# Generate a child script FILE with all initialization necessary to
# reuse the environment learned by the parent script, and make the
# file executable. If COMMENT is supplied, it is inserted after the
# '#!' sequence but before initialization text begins. After this
# macro, additional text can be appended to FILE to form the body of
# the child script. The macro ends with non-zero status if the
# file could not be fully written (such as if the disk is full).
m4_ifdef([AS_INIT_GENERATED],
[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])],
[m4_defun([_LT_GENERATED_FILE_INIT],
[m4_require([AS_PREPARE])]dnl
[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl
[lt_write_fail=0
cat >$1 <<_ASEOF || lt_write_fail=1
#! $SHELL
# Generated by $as_me.
$2
SHELL=\${CONFIG_SHELL-$SHELL}
export SHELL
_ASEOF
cat >>$1 <<\_ASEOF || lt_write_fail=1
AS_SHELL_SANITIZE
_AS_PREPARE
exec AS_MESSAGE_FD>&1
_ASEOF
test 0 = "$lt_write_fail" && chmod +x $1[]dnl
m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT
# LT_OUTPUT
# ---------
# This macro allows early generation of the libtool script (before
# AC_OUTPUT is called), incase it is used in configure for compilation
# tests.
AC_DEFUN([LT_OUTPUT],
[: ${CONFIG_LT=./config.lt}
AC_MSG_NOTICE([creating $CONFIG_LT])
_LT_GENERATED_FILE_INIT(["$CONFIG_LT"],
[# Run this file to recreate a libtool stub with the current configuration.])
cat >>"$CONFIG_LT" <<\_LTEOF
lt_cl_silent=false
exec AS_MESSAGE_LOG_FD>>config.log
{
echo
AS_BOX([Running $as_me.])
} >&AS_MESSAGE_LOG_FD
lt_cl_help="\
'$as_me' creates a local libtool stub from the current configuration,
for use in further configure time tests before the real libtool is
generated.
Usage: $[0] [[OPTIONS]]
-h, --help print this help, then exit
-V, --version print version number, then exit
-q, --quiet do not print progress messages
-d, --debug don't remove temporary files
Report bugs to ."
lt_cl_version="\
m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
configured by $[0], generated by m4_PACKAGE_STRING.
Copyright (C) 2011 Free Software Foundation, Inc.
This config.lt script is free software; the Free Software Foundation
gives unlimited permision to copy, distribute and modify it."
while test 0 != $[#]
do
case $[1] in
--version | --v* | -V )
echo "$lt_cl_version"; exit 0 ;;
--help | --h* | -h )
echo "$lt_cl_help"; exit 0 ;;
--debug | --d* | -d )
debug=: ;;
--quiet | --q* | --silent | --s* | -q )
lt_cl_silent=: ;;
-*) AC_MSG_ERROR([unrecognized option: $[1]
Try '$[0] --help' for more information.]) ;;
*) AC_MSG_ERROR([unrecognized argument: $[1]
Try '$[0] --help' for more information.]) ;;
esac
shift
done
if $lt_cl_silent; then
exec AS_MESSAGE_FD>/dev/null
fi
_LTEOF
cat >>"$CONFIG_LT" <<_LTEOF
_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
_LTEOF
cat >>"$CONFIG_LT" <<\_LTEOF
AC_MSG_NOTICE([creating $ofile])
_LT_OUTPUT_LIBTOOL_COMMANDS
AS_EXIT(0)
_LTEOF
chmod +x "$CONFIG_LT"
# configure is writing to config.log, but config.lt does its own redirection,
# appending to config.log, which fails on DOS, as config.log is still kept
# open by configure. Here we exec the FD to /dev/null, effectively closing
# config.log, so it can be properly (re)opened and appended to by config.lt.
lt_cl_success=:
test yes = "$silent" &&
lt_config_lt_args="$lt_config_lt_args --quiet"
exec AS_MESSAGE_LOG_FD>/dev/null
$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
exec AS_MESSAGE_LOG_FD>>config.log
$lt_cl_success || AS_EXIT(1)
])# LT_OUTPUT
# _LT_CONFIG(TAG)
# ---------------
# If TAG is the built-in tag, create an initial libtool script with a
# default configuration from the untagged config vars. Otherwise add code
# to config.status for appending the configuration named by TAG from the
# matching tagged config vars.
m4_defun([_LT_CONFIG],
[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
_LT_CONFIG_SAVE_COMMANDS([
m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
m4_if(_LT_TAG, [C], [
# See if we are running on zsh, and set the options that allow our
# commands through without removal of \ escapes.
if test -n "${ZSH_VERSION+set}"; then
setopt NO_GLOB_SUBST
fi
cfgfile=${ofile}T
trap "$RM \"$cfgfile\"; exit 1" 1 2 15
$RM "$cfgfile"
cat <<_LT_EOF >> "$cfgfile"
#! $SHELL
# Generated automatically by $as_me ($PACKAGE) $VERSION
# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
# NOTE: Changes made to this file will be lost: look at ltmain.sh.
# Provide generalized library-building support services.
# Written by Gordon Matzigkeit, 1996
_LT_COPYING
_LT_LIBTOOL_TAGS
# Configured defaults for sys_lib_dlsearch_path munging.
: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
# ### BEGIN LIBTOOL CONFIG
_LT_LIBTOOL_CONFIG_VARS
_LT_LIBTOOL_TAG_VARS
# ### END LIBTOOL CONFIG
_LT_EOF
cat <<'_LT_EOF' >> "$cfgfile"
# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
_LT_PREPARE_MUNGE_PATH_LIST
_LT_PREPARE_CC_BASENAME
# ### END FUNCTIONS SHARED WITH CONFIGURE
_LT_EOF
case $host_os in
aix3*)
cat <<\_LT_EOF >> "$cfgfile"
# AIX sometimes has problems with the GCC collect2 program. For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
if test set != "${COLLECT_NAMES+set}"; then
COLLECT_NAMES=
export COLLECT_NAMES
fi
_LT_EOF
;;
esac
_LT_PROG_LTMAIN
# We use sed instead of cat because bash on DJGPP gets confused if
# if finds mixed CR/LF and LF-only lines. Since sed operates in
# text mode, it properly converts lines to CR/LF. This bash problem
# is reportedly fixed, but why not run on old versions too?
$SED '$q' "$ltmain" >> "$cfgfile" \
|| (rm -f "$cfgfile"; exit 1)
mv -f "$cfgfile" "$ofile" ||
(rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
chmod +x "$ofile"
],
[cat <<_LT_EOF >> "$ofile"
dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
dnl in a comment (ie after a #).
# ### BEGIN LIBTOOL TAG CONFIG: $1
_LT_LIBTOOL_TAG_VARS(_LT_TAG)
# ### END LIBTOOL TAG CONFIG: $1
_LT_EOF
])dnl /m4_if
],
[m4_if([$1], [], [
PACKAGE='$PACKAGE'
VERSION='$VERSION'
RM='$RM'
ofile='$ofile'], [])
])dnl /_LT_CONFIG_SAVE_COMMANDS
])# _LT_CONFIG
# LT_SUPPORTED_TAG(TAG)
# ---------------------
# Trace this macro to discover what tags are supported by the libtool
# --tag option, using:
# autoconf --trace 'LT_SUPPORTED_TAG:$1'
AC_DEFUN([LT_SUPPORTED_TAG], [])
# C support is built-in for now
m4_define([_LT_LANG_C_enabled], [])
m4_define([_LT_TAGS], [])
# LT_LANG(LANG)
# -------------
# Enable libtool support for the given language if not already enabled.
AC_DEFUN([LT_LANG],
[AC_BEFORE([$0], [LT_OUTPUT])dnl
m4_case([$1],
[C], [_LT_LANG(C)],
[C++], [_LT_LANG(CXX)],
[Go], [_LT_LANG(GO)],
[Java], [_LT_LANG(GCJ)],
[Fortran 77], [_LT_LANG(F77)],
[Fortran], [_LT_LANG(FC)],
[Windows Resource], [_LT_LANG(RC)],
[m4_ifdef([_LT_LANG_]$1[_CONFIG],
[_LT_LANG($1)],
[m4_fatal([$0: unsupported language: "$1"])])])dnl
])# LT_LANG
# _LT_LANG(LANGNAME)
# ------------------
m4_defun([_LT_LANG],
[m4_ifdef([_LT_LANG_]$1[_enabled], [],
[LT_SUPPORTED_TAG([$1])dnl
m4_append([_LT_TAGS], [$1 ])dnl
m4_define([_LT_LANG_]$1[_enabled], [])dnl
_LT_LANG_$1_CONFIG($1)])dnl
])# _LT_LANG
m4_ifndef([AC_PROG_GO], [
############################################################
# NOTE: This macro has been submitted for inclusion into #
# GNU Autoconf as AC_PROG_GO. When it is available in #
# a released version of Autoconf we should remove this #
# macro and use it instead. #
############################################################
m4_defun([AC_PROG_GO],
[AC_LANG_PUSH(Go)dnl
AC_ARG_VAR([GOC], [Go compiler command])dnl
AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl
_AC_ARG_VAR_LDFLAGS()dnl
AC_CHECK_TOOL(GOC, gccgo)
if test -z "$GOC"; then
if test -n "$ac_tool_prefix"; then
AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo])
fi
fi
if test -z "$GOC"; then
AC_CHECK_PROG(GOC, gccgo, gccgo, false)
fi
])#m4_defun
])#m4_ifndef
# _LT_LANG_DEFAULT_CONFIG
# -----------------------
m4_defun([_LT_LANG_DEFAULT_CONFIG],
[AC_PROVIDE_IFELSE([AC_PROG_CXX],
[LT_LANG(CXX)],
[m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
AC_PROVIDE_IFELSE([AC_PROG_F77],
[LT_LANG(F77)],
[m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
AC_PROVIDE_IFELSE([AC_PROG_FC],
[LT_LANG(FC)],
[m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
dnl pulling things in needlessly.
AC_PROVIDE_IFELSE([AC_PROG_GCJ],
[LT_LANG(GCJ)],
[AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
[LT_LANG(GCJ)],
[AC_PROVIDE_IFELSE([LT_PROG_GCJ],
[LT_LANG(GCJ)],
[m4_ifdef([AC_PROG_GCJ],
[m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
m4_ifdef([A][M_PROG_GCJ],
[m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
m4_ifdef([LT_PROG_GCJ],
[m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
AC_PROVIDE_IFELSE([AC_PROG_GO],
[LT_LANG(GO)],
[m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])])
AC_PROVIDE_IFELSE([LT_PROG_RC],
[LT_LANG(RC)],
[m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
])# _LT_LANG_DEFAULT_CONFIG
# Obsolete macros:
AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
dnl AC_DEFUN([AC_LIBTOOL_F77], [])
dnl AC_DEFUN([AC_LIBTOOL_FC], [])
dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
dnl AC_DEFUN([AC_LIBTOOL_RC], [])
# _LT_TAG_COMPILER
# ----------------
m4_defun([_LT_TAG_COMPILER],
[AC_REQUIRE([AC_PROG_CC])dnl
_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
# If no C compiler was specified, use CC.
LTCC=${LTCC-"$CC"}
# If no C compiler flags were specified, use CFLAGS.
LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
# Allow CC to be a program name with arguments.
compiler=$CC
])# _LT_TAG_COMPILER
# _LT_COMPILER_BOILERPLATE
# ------------------------
# Check for compiler boilerplate output or warnings with
# the simple compiler test code.
m4_defun([_LT_COMPILER_BOILERPLATE],
[m4_require([_LT_DECL_SED])dnl
ac_outfile=conftest.$ac_objext
echo "$lt_simple_compile_test_code" >conftest.$ac_ext
eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
_lt_compiler_boilerplate=`cat conftest.err`
$RM conftest*
])# _LT_COMPILER_BOILERPLATE
# _LT_LINKER_BOILERPLATE
# ----------------------
# Check for linker boilerplate output or warnings with
# the simple link test code.
m4_defun([_LT_LINKER_BOILERPLATE],
[m4_require([_LT_DECL_SED])dnl
ac_outfile=conftest.$ac_objext
echo "$lt_simple_link_test_code" >conftest.$ac_ext
eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
_lt_linker_boilerplate=`cat conftest.err`
$RM -r conftest*
])# _LT_LINKER_BOILERPLATE
# _LT_REQUIRED_DARWIN_CHECKS
# -------------------------
m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
case $host_os in
rhapsody* | darwin*)
AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
AC_CHECK_TOOL([LIPO], [lipo], [:])
AC_CHECK_TOOL([OTOOL], [otool], [:])
AC_CHECK_TOOL([OTOOL64], [otool64], [:])
_LT_DECL([], [DSYMUTIL], [1],
[Tool to manipulate archived DWARF debug symbol files on Mac OS X])
_LT_DECL([], [NMEDIT], [1],
[Tool to change global to local symbols on Mac OS X])
_LT_DECL([], [LIPO], [1],
[Tool to manipulate fat objects and archives on Mac OS X])
_LT_DECL([], [OTOOL], [1],
[ldd/readelf like tool for Mach-O binaries on Mac OS X])
_LT_DECL([], [OTOOL64], [1],
[ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
[lt_cv_apple_cc_single_mod=no
if test -z "$LT_MULTI_MODULE"; then
# By default we will add the -single_module flag. You can override
# by either setting the environment variable LT_MULTI_MODULE
# non-empty at configure time, or by adding -multi_module to the
# link flags.
rm -rf libconftest.dylib*
echo "int foo(void){return 1;}" > conftest.c
echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
-dynamiclib -Wl,-single_module conftest.c 2>conftest.err
_lt_result=$?
# If there is a non-empty error log, and "single_module"
# appears in it, assume the flag caused a linker warning
if test -s conftest.err && $GREP single_module conftest.err; then
cat conftest.err >&AS_MESSAGE_LOG_FD
# Otherwise, if the output was created with a 0 exit code from
# the compiler, it worked.
elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
lt_cv_apple_cc_single_mod=yes
else
cat conftest.err >&AS_MESSAGE_LOG_FD
fi
rm -rf libconftest.dylib*
rm -f conftest.*
fi])
AC_CACHE_CHECK([for -exported_symbols_list linker flag],
[lt_cv_ld_exported_symbols_list],
[lt_cv_ld_exported_symbols_list=no
save_LDFLAGS=$LDFLAGS
echo "_main" > conftest.sym
LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
[lt_cv_ld_exported_symbols_list=yes],
[lt_cv_ld_exported_symbols_list=no])
LDFLAGS=$save_LDFLAGS
])
AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load],
[lt_cv_ld_force_load=no
cat > conftest.c << _LT_EOF
int forced_loaded() { return 2;}
_LT_EOF
echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD
$LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD
echo "$AR $AR_FLAGS libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD
$AR $AR_FLAGS libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD
echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD
$RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD
cat > conftest.c << _LT_EOF
int main() { return 0;}
_LT_EOF
echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD
$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
_lt_result=$?
if test -s conftest.err && $GREP force_load conftest.err; then
cat conftest.err >&AS_MESSAGE_LOG_FD
elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
lt_cv_ld_force_load=yes
else
cat conftest.err >&AS_MESSAGE_LOG_FD
fi
rm -f conftest.err libconftest.a conftest conftest.c
rm -rf conftest.dSYM
])
case $host_os in
rhapsody* | darwin1.[[012]])
_lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
darwin1.*)
_lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
darwin*)
case $MACOSX_DEPLOYMENT_TARGET,$host in
10.[[012]],*|,*powerpc*-darwin[[5-8]]*)
_lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
*)
_lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
esac
;;
esac
if test yes = "$lt_cv_apple_cc_single_mod"; then
_lt_dar_single_mod='$single_module'
fi
if test yes = "$lt_cv_ld_exported_symbols_list"; then
_lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
else
_lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
fi
if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
_lt_dsymutil='~$DSYMUTIL $lib || :'
else
_lt_dsymutil=
fi
;;
esac
])
# _LT_DARWIN_LINKER_FEATURES([TAG])
# ---------------------------------
# Checks for linker and compiler features on darwin
m4_defun([_LT_DARWIN_LINKER_FEATURES],
[
m4_require([_LT_REQUIRED_DARWIN_CHECKS])
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_automatic, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
if test yes = "$lt_cv_ld_force_load"; then
_LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes],
[FC], [_LT_TAGVAR(compiler_needs_object, $1)=yes])
else
_LT_TAGVAR(whole_archive_flag_spec, $1)=''
fi
_LT_TAGVAR(link_all_deplibs, $1)=yes
_LT_TAGVAR(allow_undefined_flag, $1)=$_lt_dar_allow_undefined
case $cc_basename in
ifort*|nagfor*) _lt_dar_can_shared=yes ;;
*) _lt_dar_can_shared=$GCC ;;
esac
if test yes = "$_lt_dar_can_shared"; then
output_verbose_link_cmd=func_echo_all
_LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
_LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
_LT_TAGVAR(archive_expsym_cmds, $1)="$SED 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
_LT_TAGVAR(module_expsym_cmds, $1)="$SED -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
m4_if([$1], [CXX],
[ if test yes != "$lt_cv_apple_cc_single_mod"; then
_LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil"
_LT_TAGVAR(archive_expsym_cmds, $1)="$SED 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil"
fi
],[])
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
])
# _LT_SYS_MODULE_PATH_AIX([TAGNAME])
# ----------------------------------
# Links a minimal program and checks the executable
# for the system default hardcoded library path. In most cases,
# this is /usr/lib:/lib, but when the MPI compilers are used
# the location of the communication and MPI libs are included too.
# If we don't find anything, use the default library path according
# to the aix ld manual.
# Store the results from the different compilers for each TAGNAME.
# Allow to override them for all tags through lt_cv_aix_libpath.
m4_defun([_LT_SYS_MODULE_PATH_AIX],
[m4_require([_LT_DECL_SED])dnl
if test set = "${lt_cv_aix_libpath+set}"; then
aix_libpath=$lt_cv_aix_libpath
else
AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])],
[AC_LINK_IFELSE([AC_LANG_PROGRAM],[
lt_aix_libpath_sed='[
/Import File Strings/,/^$/ {
/^0/ {
s/^0 *\([^ ]*\) *$/\1/
p
}
}]'
_LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
# Check for a 64-bit object if we didn't find anything.
if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
_LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
fi],[])
if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
_LT_TAGVAR([lt_cv_aix_libpath_], [$1])=/usr/lib:/lib
fi
])
aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])
fi
])# _LT_SYS_MODULE_PATH_AIX
# _LT_SHELL_INIT(ARG)
# -------------------
m4_define([_LT_SHELL_INIT],
[m4_divert_text([M4SH-INIT], [$1
])])# _LT_SHELL_INIT
# _LT_PROG_ECHO_BACKSLASH
# -----------------------
# Find how we can fake an echo command that does not interpret backslash.
# In particular, with Autoconf 2.60 or later we add some code to the start
# of the generated configure script that will find a shell with a builtin
# printf (that we can use as an echo command).
m4_defun([_LT_PROG_ECHO_BACKSLASH],
[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
AC_MSG_CHECKING([how to print strings])
# Test print first, because it will be a builtin if present.
if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
ECHO='print -r --'
elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
ECHO='printf %s\n'
else
# Use this function as a fallback that always works.
func_fallback_echo ()
{
eval 'cat <<_LTECHO_EOF
$[]1
_LTECHO_EOF'
}
ECHO='func_fallback_echo'
fi
# func_echo_all arg...
# Invoke $ECHO with all args, space-separated.
func_echo_all ()
{
$ECHO "$*"
}
case $ECHO in
printf*) AC_MSG_RESULT([printf]) ;;
print*) AC_MSG_RESULT([print -r]) ;;
*) AC_MSG_RESULT([cat]) ;;
esac
m4_ifdef([_AS_DETECT_SUGGESTED],
[_AS_DETECT_SUGGESTED([
test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || (
ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
PATH=/empty FPATH=/empty; export PATH FPATH
test "X`printf %s $ECHO`" = "X$ECHO" \
|| test "X`print -r -- $ECHO`" = "X$ECHO" )])])
_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes])
])# _LT_PROG_ECHO_BACKSLASH
# _LT_WITH_SYSROOT
# ----------------
AC_DEFUN([_LT_WITH_SYSROOT],
[m4_require([_LT_DECL_SED])dnl
AC_MSG_CHECKING([for sysroot])
AC_ARG_WITH([sysroot],
[AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
[Search for dependent libraries within DIR (or the compiler's sysroot
if not specified).])],
[], [with_sysroot=no])
dnl lt_sysroot will always be passed unquoted. We quote it here
dnl in case the user passed a directory name.
lt_sysroot=
case $with_sysroot in #(
yes)
if test yes = "$GCC"; then
lt_sysroot=`$CC --print-sysroot 2>/dev/null`
fi
;; #(
/*)
lt_sysroot=`echo "$with_sysroot" | $SED -e "$sed_quote_subst"`
;; #(
no|'')
;; #(
*)
AC_MSG_RESULT([$with_sysroot])
AC_MSG_ERROR([The sysroot must be an absolute path.])
;;
esac
AC_MSG_RESULT([${lt_sysroot:-no}])
_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl
[dependent libraries, and where our libraries should be installed.])])
# _LT_ENABLE_LOCK
# ---------------
m4_defun([_LT_ENABLE_LOCK],
[AC_ARG_ENABLE([libtool-lock],
[AS_HELP_STRING([--disable-libtool-lock],
[avoid locking (might break parallel builds)])])
test no = "$enable_libtool_lock" || enable_libtool_lock=yes
# Some flags need to be propagated to the compiler or linker for good
# libtool support.
case $host in
ia64-*-hpux*)
# Find out what ABI is being produced by ac_compile, and set mode
# options accordingly.
echo 'int i;' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
case `$FILECMD conftest.$ac_objext` in
*ELF-32*)
HPUX_IA64_MODE=32
;;
*ELF-64*)
HPUX_IA64_MODE=64
;;
esac
fi
rm -rf conftest*
;;
*-*-irix6*)
# Find out what ABI is being produced by ac_compile, and set linker
# options accordingly.
echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
if test yes = "$lt_cv_prog_gnu_ld"; then
case `$FILECMD conftest.$ac_objext` in
*32-bit*)
LD="${LD-ld} -melf32bsmip"
;;
*N32*)
LD="${LD-ld} -melf32bmipn32"
;;
*64-bit*)
LD="${LD-ld} -melf64bmip"
;;
esac
else
case `$FILECMD conftest.$ac_objext` in
*32-bit*)
LD="${LD-ld} -32"
;;
*N32*)
LD="${LD-ld} -n32"
;;
*64-bit*)
LD="${LD-ld} -64"
;;
esac
fi
fi
rm -rf conftest*
;;
mips64*-*linux*)
# Find out what ABI is being produced by ac_compile, and set linker
# options accordingly.
echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
emul=elf
case `$FILECMD conftest.$ac_objext` in
*32-bit*)
emul="${emul}32"
;;
*64-bit*)
emul="${emul}64"
;;
esac
case `$FILECMD conftest.$ac_objext` in
*MSB*)
emul="${emul}btsmip"
;;
*LSB*)
emul="${emul}ltsmip"
;;
esac
case `$FILECMD conftest.$ac_objext` in
*N32*)
emul="${emul}n32"
;;
esac
LD="${LD-ld} -m $emul"
fi
rm -rf conftest*
;;
x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
# Find out what ABI is being produced by ac_compile, and set linker
# options accordingly. Note that the listed cases only cover the
# situations where additional linker options are needed (such as when
# doing 32-bit compilation for a host where ld defaults to 64-bit, or
# vice versa); the common cases where no linker options are needed do
# not appear in the list.
echo 'int i;' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
case `$FILECMD conftest.o` in
*32-bit*)
case $host in
x86_64-*kfreebsd*-gnu)
LD="${LD-ld} -m elf_i386_fbsd"
;;
x86_64-*linux*)
case `$FILECMD conftest.o` in
*x86-64*)
LD="${LD-ld} -m elf32_x86_64"
;;
*)
LD="${LD-ld} -m elf_i386"
;;
esac
;;
powerpc64le-*linux*)
LD="${LD-ld} -m elf32lppclinux"
;;
powerpc64-*linux*)
LD="${LD-ld} -m elf32ppclinux"
;;
s390x-*linux*)
LD="${LD-ld} -m elf_s390"
;;
sparc64-*linux*)
LD="${LD-ld} -m elf32_sparc"
;;
esac
;;
*64-bit*)
case $host in
x86_64-*kfreebsd*-gnu)
LD="${LD-ld} -m elf_x86_64_fbsd"
;;
x86_64-*linux*)
LD="${LD-ld} -m elf_x86_64"
;;
powerpcle-*linux*)
LD="${LD-ld} -m elf64lppc"
;;
powerpc-*linux*)
LD="${LD-ld} -m elf64ppc"
;;
s390*-*linux*|s390*-*tpf*)
LD="${LD-ld} -m elf64_s390"
;;
sparc*-*linux*)
LD="${LD-ld} -m elf64_sparc"
;;
esac
;;
esac
fi
rm -rf conftest*
;;
*-*-sco3.2v5*)
# On SCO OpenServer 5, we need -belf to get full-featured binaries.
SAVE_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -belf"
AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
[AC_LANG_PUSH(C)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
AC_LANG_POP])
if test yes != "$lt_cv_cc_needs_belf"; then
# this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
CFLAGS=$SAVE_CFLAGS
fi
;;
*-*solaris*)
# Find out what ABI is being produced by ac_compile, and set linker
# options accordingly.
echo 'int i;' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
case `$FILECMD conftest.o` in
*64-bit*)
case $lt_cv_prog_gnu_ld in
yes*)
case $host in
i?86-*-solaris*|x86_64-*-solaris*)
LD="${LD-ld} -m elf_x86_64"
;;
sparc*-*-solaris*)
LD="${LD-ld} -m elf64_sparc"
;;
esac
# GNU ld 2.21 introduced _sol2 emulations. Use them if available.
if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
LD=${LD-ld}_sol2
fi
;;
*)
if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
LD="${LD-ld} -64"
fi
;;
esac
;;
esac
fi
rm -rf conftest*
;;
esac
need_locks=$enable_libtool_lock
])# _LT_ENABLE_LOCK
# _LT_PROG_AR
# -----------
m4_defun([_LT_PROG_AR],
[AC_CHECK_TOOLS(AR, [ar], false)
: ${AR=ar}
_LT_DECL([], [AR], [1], [The archiver])
# Use ARFLAGS variable as AR's operation code to sync the variable naming with
# Automake. If both AR_FLAGS and ARFLAGS are specified, AR_FLAGS should have
# higher priority because thats what people were doing historically (setting
# ARFLAGS for automake and AR_FLAGS for libtool). FIXME: Make the AR_FLAGS
# variable obsoleted/removed.
test ${AR_FLAGS+y} || AR_FLAGS=${ARFLAGS-cr}
lt_ar_flags=$AR_FLAGS
_LT_DECL([], [lt_ar_flags], [0], [Flags to create an archive (by configure)])
# Make AR_FLAGS overridable by 'make ARFLAGS='. Don't try to run-time override
# by AR_FLAGS because that was never working and AR_FLAGS is about to die.
_LT_DECL([], [AR_FLAGS], [\@S|@{ARFLAGS-"\@S|@lt_ar_flags"}],
[Flags to create an archive])
AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file],
[lt_cv_ar_at_file=no
AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
[echo conftest.$ac_objext > conftest.lst
lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD'
AC_TRY_EVAL([lt_ar_try])
if test 0 -eq "$ac_status"; then
# Ensure the archiver fails upon bogus file names.
rm -f conftest.$ac_objext libconftest.a
AC_TRY_EVAL([lt_ar_try])
if test 0 -ne "$ac_status"; then
lt_cv_ar_at_file=@
fi
fi
rm -f conftest.* libconftest.a
])
])
if test no = "$lt_cv_ar_at_file"; then
archiver_list_spec=
else
archiver_list_spec=$lt_cv_ar_at_file
fi
_LT_DECL([], [archiver_list_spec], [1],
[How to feed a file listing to the archiver])
])# _LT_PROG_AR
# _LT_CMD_OLD_ARCHIVE
# -------------------
m4_defun([_LT_CMD_OLD_ARCHIVE],
[_LT_PROG_AR
AC_CHECK_TOOL(STRIP, strip, :)
test -z "$STRIP" && STRIP=:
_LT_DECL([], [STRIP], [1], [A symbol stripping program])
AC_CHECK_TOOL(RANLIB, ranlib, :)
test -z "$RANLIB" && RANLIB=:
_LT_DECL([], [RANLIB], [1],
[Commands used to install an old-style archive])
# Determine commands to create old-style static archives.
old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
old_postinstall_cmds='chmod 644 $oldlib'
old_postuninstall_cmds=
if test -n "$RANLIB"; then
case $host_os in
bitrig* | openbsd*)
old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
;;
*)
old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
;;
esac
old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
fi
case $host_os in
darwin*)
lock_old_archive_extraction=yes ;;
*)
lock_old_archive_extraction=no ;;
esac
_LT_DECL([], [old_postinstall_cmds], [2])
_LT_DECL([], [old_postuninstall_cmds], [2])
_LT_TAGDECL([], [old_archive_cmds], [2],
[Commands used to build an old-style archive])
_LT_DECL([], [lock_old_archive_extraction], [0],
[Whether to use a lock for old archive extraction])
])# _LT_CMD_OLD_ARCHIVE
# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
# ----------------------------------------------------------------
# Check whether the given compiler option works
AC_DEFUN([_LT_COMPILER_OPTION],
[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_DECL_SED])dnl
AC_CACHE_CHECK([$1], [$2],
[$2=no
m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
echo "$lt_simple_compile_test_code" > conftest.$ac_ext
lt_compiler_flag="$3" ## exclude from sc_useless_quotes_in_assignment
# Insert the option either (1) after the last *FLAGS variable, or
# (2) before a word containing "conftest.", or (3) at the end.
# Note that $ac_compile itself does not contain backslashes and begins
# with a dollar sign (not a hyphen), so the echo should work correctly.
# The option is referenced via a variable to avoid confusing sed.
lt_compile=`echo "$ac_compile" | $SED \
-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
-e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
-e 's:$: $lt_compiler_flag:'`
(eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
(eval "$lt_compile" 2>conftest.err)
ac_status=$?
cat conftest.err >&AS_MESSAGE_LOG_FD
echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
if (exit $ac_status) && test -s "$ac_outfile"; then
# The compiler can only warn and ignore the option if not recognized
# So say no if there are warnings other than the usual output.
$ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
$SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
$2=yes
fi
fi
$RM conftest*
])
if test yes = "[$]$2"; then
m4_if([$5], , :, [$5])
else
m4_if([$6], , :, [$6])
fi
])# _LT_COMPILER_OPTION
# Old name:
AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
# [ACTION-SUCCESS], [ACTION-FAILURE])
# ----------------------------------------------------
# Check whether the given linker option works
AC_DEFUN([_LT_LINKER_OPTION],
[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_DECL_SED])dnl
AC_CACHE_CHECK([$1], [$2],
[$2=no
save_LDFLAGS=$LDFLAGS
LDFLAGS="$LDFLAGS $3"
echo "$lt_simple_link_test_code" > conftest.$ac_ext
if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
# The linker can only warn and ignore the option if not recognized
# So say no if there are warnings
if test -s conftest.err; then
# Append any errors to the config.log.
cat conftest.err 1>&AS_MESSAGE_LOG_FD
$ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
$SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
if diff conftest.exp conftest.er2 >/dev/null; then
$2=yes
fi
else
$2=yes
fi
fi
$RM -r conftest*
LDFLAGS=$save_LDFLAGS
])
if test yes = "[$]$2"; then
m4_if([$4], , :, [$4])
else
m4_if([$5], , :, [$5])
fi
])# _LT_LINKER_OPTION
# Old name:
AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
# LT_CMD_MAX_LEN
#---------------
AC_DEFUN([LT_CMD_MAX_LEN],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
# find the maximum length of command line arguments
AC_MSG_CHECKING([the maximum length of command line arguments])
AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
i=0
teststring=ABCD
case $build_os in
msdosdjgpp*)
# On DJGPP, this test can blow up pretty badly due to problems in libc
# (any single argument exceeding 2000 bytes causes a buffer overrun
# during glob expansion). Even if it were fixed, the result of this
# check would be larger than it should be.
lt_cv_sys_max_cmd_len=12288; # 12K is about right
;;
gnu*)
# Under GNU Hurd, this test is not required because there is
# no limit to the length of command line arguments.
# Libtool will interpret -1 as no limit whatsoever
lt_cv_sys_max_cmd_len=-1;
;;
cygwin* | mingw* | cegcc*)
# On Win9x/ME, this test blows up -- it succeeds, but takes
# about 5 minutes as the teststring grows exponentially.
# Worse, since 9x/ME are not pre-emptively multitasking,
# you end up with a "frozen" computer, even though with patience
# the test eventually succeeds (with a max line length of 256k).
# Instead, let's just punt: use the minimum linelength reported by
# all of the supported platforms: 8192 (on NT/2K/XP).
lt_cv_sys_max_cmd_len=8192;
;;
mint*)
# On MiNT this can take a long time and run out of memory.
lt_cv_sys_max_cmd_len=8192;
;;
amigaos*)
# On AmigaOS with pdksh, this test takes hours, literally.
# So we just punt and use a minimum line length of 8192.
lt_cv_sys_max_cmd_len=8192;
;;
bitrig* | darwin* | dragonfly* | freebsd* | midnightbsd* | netbsd* | openbsd*)
# This has been around since 386BSD, at least. Likely further.
if test -x /sbin/sysctl; then
lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
elif test -x /usr/sbin/sysctl; then
lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
else
lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs
fi
# And add a safety zone
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
;;
interix*)
# We know the value 262144 and hardcode it with a safety zone (like BSD)
lt_cv_sys_max_cmd_len=196608
;;
os2*)
# The test takes a long time on OS/2.
lt_cv_sys_max_cmd_len=8192
;;
osf*)
# Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
# due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
# nice to cause kernel panics so lets avoid the loop below.
# First set a reasonable default.
lt_cv_sys_max_cmd_len=16384
#
if test -x /sbin/sysconfig; then
case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
*1*) lt_cv_sys_max_cmd_len=-1 ;;
esac
fi
;;
sco3.2v5*)
lt_cv_sys_max_cmd_len=102400
;;
sysv5* | sco5v6* | sysv4.2uw2*)
kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
if test -n "$kargmax"; then
lt_cv_sys_max_cmd_len=`echo $kargmax | $SED 's/.*[[ ]]//'`
else
lt_cv_sys_max_cmd_len=32768
fi
;;
*)
lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
if test -n "$lt_cv_sys_max_cmd_len" && \
test undefined != "$lt_cv_sys_max_cmd_len"; then
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
else
# Make teststring a little bigger before we do anything with it.
# a 1K string should be a reasonable start.
for i in 1 2 3 4 5 6 7 8; do
teststring=$teststring$teststring
done
SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
# If test is not a shell built-in, we'll probably end up computing a
# maximum length that is only half of the actual maximum length, but
# we can't tell.
while { test X`env echo "$teststring$teststring" 2>/dev/null` \
= "X$teststring$teststring"; } >/dev/null 2>&1 &&
test 17 != "$i" # 1/2 MB should be enough
do
i=`expr $i + 1`
teststring=$teststring$teststring
done
# Only check the string length outside the loop.
lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
teststring=
# Add a significant safety factor because C++ compilers can tack on
# massive amounts of additional arguments before passing them to the
# linker. It appears as though 1/2 is a usable value.
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
fi
;;
esac
])
if test -n "$lt_cv_sys_max_cmd_len"; then
AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
else
AC_MSG_RESULT(none)
fi
max_cmd_len=$lt_cv_sys_max_cmd_len
_LT_DECL([], [max_cmd_len], [0],
[What is the maximum length of a command?])
])# LT_CMD_MAX_LEN
# Old name:
AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
# _LT_HEADER_DLFCN
# ----------------
m4_defun([_LT_HEADER_DLFCN],
[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
])# _LT_HEADER_DLFCN
# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
# ----------------------------------------------------------------
m4_defun([_LT_TRY_DLOPEN_SELF],
[m4_require([_LT_HEADER_DLFCN])dnl
if test yes = "$cross_compiling"; then :
[$4]
else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
[#line $LINENO "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
#include
#endif
#include
#ifdef RTLD_GLOBAL
# define LT_DLGLOBAL RTLD_GLOBAL
#else
# ifdef DL_GLOBAL
# define LT_DLGLOBAL DL_GLOBAL
# else
# define LT_DLGLOBAL 0
# endif
#endif
/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
find out it does not work in some platform. */
#ifndef LT_DLLAZY_OR_NOW
# ifdef RTLD_LAZY
# define LT_DLLAZY_OR_NOW RTLD_LAZY
# else
# ifdef DL_LAZY
# define LT_DLLAZY_OR_NOW DL_LAZY
# else
# ifdef RTLD_NOW
# define LT_DLLAZY_OR_NOW RTLD_NOW
# else
# ifdef DL_NOW
# define LT_DLLAZY_OR_NOW DL_NOW
# else
# define LT_DLLAZY_OR_NOW 0
# endif
# endif
# endif
# endif
#endif
/* When -fvisibility=hidden is used, assume the code has been annotated
correspondingly for the symbols needed. */
#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
int fnord () __attribute__((visibility("default")));
#endif
int fnord () { return 42; }
int main ()
{
void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
int status = $lt_dlunknown;
if (self)
{
if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
else
{
if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
else puts (dlerror ());
}
/* dlclose (self); */
}
else
puts (dlerror ());
return status;
}]
_LT_EOF
if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then
(./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
lt_status=$?
case x$lt_status in
x$lt_dlno_uscore) $1 ;;
x$lt_dlneed_uscore) $2 ;;
x$lt_dlunknown|x*) $3 ;;
esac
else :
# compilation failed
$3
fi
fi
rm -fr conftest*
])# _LT_TRY_DLOPEN_SELF
# LT_SYS_DLOPEN_SELF
# ------------------
AC_DEFUN([LT_SYS_DLOPEN_SELF],
[m4_require([_LT_HEADER_DLFCN])dnl
if test yes != "$enable_dlopen"; then
enable_dlopen=unknown
enable_dlopen_self=unknown
enable_dlopen_self_static=unknown
else
lt_cv_dlopen=no
lt_cv_dlopen_libs=
case $host_os in
beos*)
lt_cv_dlopen=load_add_on
lt_cv_dlopen_libs=
lt_cv_dlopen_self=yes
;;
mingw* | pw32* | cegcc*)
lt_cv_dlopen=LoadLibrary
lt_cv_dlopen_libs=
;;
cygwin*)
lt_cv_dlopen=dlopen
lt_cv_dlopen_libs=
;;
darwin*)
# if libdl is installed we need to link against it
AC_CHECK_LIB([dl], [dlopen],
[lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[
lt_cv_dlopen=dyld
lt_cv_dlopen_libs=
lt_cv_dlopen_self=yes
])
;;
tpf*)
# Don't try to run any link tests for TPF. We know it's impossible
# because TPF is a cross-compiler, and we know how we open DSOs.
lt_cv_dlopen=dlopen
lt_cv_dlopen_libs=
lt_cv_dlopen_self=no
;;
*)
AC_CHECK_FUNC([shl_load],
[lt_cv_dlopen=shl_load],
[AC_CHECK_LIB([dld], [shl_load],
[lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld],
[AC_CHECK_FUNC([dlopen],
[lt_cv_dlopen=dlopen],
[AC_CHECK_LIB([dl], [dlopen],
[lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],
[AC_CHECK_LIB([svld], [dlopen],
[lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld],
[AC_CHECK_LIB([dld], [dld_link],
[lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld])
])
])
])
])
])
;;
esac
if test no = "$lt_cv_dlopen"; then
enable_dlopen=no
else
enable_dlopen=yes
fi
case $lt_cv_dlopen in
dlopen)
save_CPPFLAGS=$CPPFLAGS
test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
save_LDFLAGS=$LDFLAGS
wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
save_LIBS=$LIBS
LIBS="$lt_cv_dlopen_libs $LIBS"
AC_CACHE_CHECK([whether a program can dlopen itself],
lt_cv_dlopen_self, [dnl
_LT_TRY_DLOPEN_SELF(
lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
])
if test yes = "$lt_cv_dlopen_self"; then
wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
lt_cv_dlopen_self_static, [dnl
_LT_TRY_DLOPEN_SELF(
lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross)
])
fi
CPPFLAGS=$save_CPPFLAGS
LDFLAGS=$save_LDFLAGS
LIBS=$save_LIBS
;;
esac
case $lt_cv_dlopen_self in
yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
*) enable_dlopen_self=unknown ;;
esac
case $lt_cv_dlopen_self_static in
yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
*) enable_dlopen_self_static=unknown ;;
esac
fi
_LT_DECL([dlopen_support], [enable_dlopen], [0],
[Whether dlopen is supported])
_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
[Whether dlopen of programs is supported])
_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
[Whether dlopen of statically linked programs is supported])
])# LT_SYS_DLOPEN_SELF
# Old name:
AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
# _LT_COMPILER_C_O([TAGNAME])
# ---------------------------
# Check to see if options -c and -o are simultaneously supported by compiler.
# This macro does not hard code the compiler like AC_PROG_CC_C_O.
m4_defun([_LT_COMPILER_C_O],
[m4_require([_LT_DECL_SED])dnl
m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_TAG_COMPILER])dnl
AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
[_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
[_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
$RM -r conftest 2>/dev/null
mkdir conftest
cd conftest
mkdir out
echo "$lt_simple_compile_test_code" > conftest.$ac_ext
lt_compiler_flag="-o out/conftest2.$ac_objext"
# Insert the option either (1) after the last *FLAGS variable, or
# (2) before a word containing "conftest.", or (3) at the end.
# Note that $ac_compile itself does not contain backslashes and begins
# with a dollar sign (not a hyphen), so the echo should work correctly.
lt_compile=`echo "$ac_compile" | $SED \
-e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
-e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
-e 's:$: $lt_compiler_flag:'`
(eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
(eval "$lt_compile" 2>out/conftest.err)
ac_status=$?
cat out/conftest.err >&AS_MESSAGE_LOG_FD
echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
if (exit $ac_status) && test -s out/conftest2.$ac_objext
then
# The compiler can only warn and ignore the option if not recognized
# So say no if there are warnings
$ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
$SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
fi
fi
chmod u+w . 2>&AS_MESSAGE_LOG_FD
$RM conftest*
# SGI C++ compiler will create directory out/ii_files/ for
# template instantiation
test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
$RM out/* && rmdir out
cd ..
$RM -r conftest
$RM conftest*
])
_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
[Does compiler simultaneously support -c and -o options?])
])# _LT_COMPILER_C_O
# _LT_COMPILER_FILE_LOCKS([TAGNAME])
# ----------------------------------
# Check to see if we can do hard links to lock some files if needed
m4_defun([_LT_COMPILER_FILE_LOCKS],
[m4_require([_LT_ENABLE_LOCK])dnl
m4_require([_LT_FILEUTILS_DEFAULTS])dnl
_LT_COMPILER_C_O([$1])
hard_links=nottested
if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then
# do not overwrite the value of need_locks provided by the user
AC_MSG_CHECKING([if we can lock with hard links])
hard_links=yes
$RM conftest*
ln conftest.a conftest.b 2>/dev/null && hard_links=no
touch conftest.a
ln conftest.a conftest.b 2>&5 || hard_links=no
ln conftest.a conftest.b 2>/dev/null && hard_links=no
AC_MSG_RESULT([$hard_links])
if test no = "$hard_links"; then
AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe])
need_locks=warn
fi
else
need_locks=no
fi
_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
])# _LT_COMPILER_FILE_LOCKS
# _LT_CHECK_OBJDIR
# ----------------
m4_defun([_LT_CHECK_OBJDIR],
[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
[rm -f .libs 2>/dev/null
mkdir .libs 2>/dev/null
if test -d .libs; then
lt_cv_objdir=.libs
else
# MS-DOS does not allow filenames that begin with a dot.
lt_cv_objdir=_libs
fi
rmdir .libs 2>/dev/null])
objdir=$lt_cv_objdir
_LT_DECL([], [objdir], [0],
[The name of the directory that contains temporary libtool files])dnl
m4_pattern_allow([LT_OBJDIR])dnl
AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/",
[Define to the sub-directory where libtool stores uninstalled libraries.])
])# _LT_CHECK_OBJDIR
# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
# --------------------------------------
# Check hardcoding attributes.
m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
[AC_MSG_CHECKING([how to hardcode library paths into programs])
_LT_TAGVAR(hardcode_action, $1)=
if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
test -n "$_LT_TAGVAR(runpath_var, $1)" ||
test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then
# We can hardcode non-existent directories.
if test no != "$_LT_TAGVAR(hardcode_direct, $1)" &&
# If the only mechanism to avoid hardcoding is shlibpath_var, we
# have to relink, otherwise we might link with an installed library
# when we should be linking with a yet-to-be-installed one
## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" &&
test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then
# Linking always hardcodes the temporary library directory.
_LT_TAGVAR(hardcode_action, $1)=relink
else
# We can link without hardcoding, and we can hardcode nonexisting dirs.
_LT_TAGVAR(hardcode_action, $1)=immediate
fi
else
# We cannot hardcode anything, or else we can only hardcode existing
# directories.
_LT_TAGVAR(hardcode_action, $1)=unsupported
fi
AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
if test relink = "$_LT_TAGVAR(hardcode_action, $1)" ||
test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then
# Fast installation is not supported
enable_fast_install=no
elif test yes = "$shlibpath_overrides_runpath" ||
test no = "$enable_shared"; then
# Fast installation is not necessary
enable_fast_install=needless
fi
_LT_TAGDECL([], [hardcode_action], [0],
[How to hardcode a shared library path into an executable])
])# _LT_LINKER_HARDCODE_LIBPATH
# _LT_CMD_STRIPLIB
# ----------------
m4_defun([_LT_CMD_STRIPLIB],
[m4_require([_LT_DECL_EGREP])
striplib=
old_striplib=
AC_MSG_CHECKING([whether stripping libraries is possible])
if test -z "$STRIP"; then
AC_MSG_RESULT([no])
else
if $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
old_striplib="$STRIP --strip-debug"
striplib="$STRIP --strip-unneeded"
AC_MSG_RESULT([yes])
else
case $host_os in
darwin*)
# FIXME - insert some real tests, host_os isn't really good enough
striplib="$STRIP -x"
old_striplib="$STRIP -S"
AC_MSG_RESULT([yes])
;;
freebsd*)
if $STRIP -V 2>&1 | $GREP "elftoolchain" >/dev/null; then
old_striplib="$STRIP --strip-debug"
striplib="$STRIP --strip-unneeded"
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
;;
*)
AC_MSG_RESULT([no])
;;
esac
fi
fi
_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
_LT_DECL([], [striplib], [1])
])# _LT_CMD_STRIPLIB
# _LT_PREPARE_MUNGE_PATH_LIST
# ---------------------------
# Make sure func_munge_path_list() is defined correctly.
m4_defun([_LT_PREPARE_MUNGE_PATH_LIST],
[[# func_munge_path_list VARIABLE PATH
# -----------------------------------
# VARIABLE is name of variable containing _space_ separated list of
# directories to be munged by the contents of PATH, which is string
# having a format:
# "DIR[:DIR]:"
# string "DIR[ DIR]" will be prepended to VARIABLE
# ":DIR[:DIR]"
# string "DIR[ DIR]" will be appended to VARIABLE
# "DIRP[:DIRP]::[DIRA:]DIRA"
# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
# "DIRA[ DIRA]" will be appended to VARIABLE
# "DIR[:DIR]"
# VARIABLE will be replaced by "DIR[ DIR]"
func_munge_path_list ()
{
case x@S|@2 in
x)
;;
*:)
eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\"
;;
x:*)
eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\"
;;
*::*)
eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\"
;;
*)
eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\"
;;
esac
}
]])# _LT_PREPARE_PATH_LIST
# _LT_SYS_DYNAMIC_LINKER([TAG])
# -----------------------------
# PORTME Fill in your ld.so characteristics
m4_defun([_LT_SYS_DYNAMIC_LINKER],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
m4_require([_LT_DECL_EGREP])dnl
m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_DECL_OBJDUMP])dnl
m4_require([_LT_DECL_SED])dnl
m4_require([_LT_CHECK_SHELL_FEATURES])dnl
m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl
AC_MSG_CHECKING([dynamic linker characteristics])
m4_if([$1],
[], [
if test yes = "$GCC"; then
case $host_os in
darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
*) lt_awk_arg='/^libraries:/' ;;
esac
case $host_os in
mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;;
*) lt_sed_strip_eq='s|=/|/|g' ;;
esac
lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
case $lt_search_path_spec in
*\;*)
# if the path contains ";" then we assume it to be the separator
# otherwise default to the standard path separator (i.e. ":") - it is
# assumed that no part of a normal pathname contains ";" but that should
# okay in the real world where ";" in dirpaths is itself problematic.
lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
;;
*)
lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
;;
esac
# Ok, now we have the path, separated by spaces, we can step through it
# and add multilib dir if necessary...
lt_tmp_lt_search_path_spec=
lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
# ...but if some path component already ends with the multilib dir we assume
# that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
case "$lt_multi_os_dir; $lt_search_path_spec " in
"/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
lt_multi_os_dir=
;;
esac
for lt_sys_path in $lt_search_path_spec; do
if test -d "$lt_sys_path$lt_multi_os_dir"; then
lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
elif test -n "$lt_multi_os_dir"; then
test -d "$lt_sys_path" && \
lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
fi
done
lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
BEGIN {RS = " "; FS = "/|\n";} {
lt_foo = "";
lt_count = 0;
for (lt_i = NF; lt_i > 0; lt_i--) {
if ($lt_i != "" && $lt_i != ".") {
if ($lt_i == "..") {
lt_count++;
} else {
if (lt_count == 0) {
lt_foo = "/" $lt_i lt_foo;
} else {
lt_count--;
}
}
}
}
if (lt_foo != "") { lt_freq[[lt_foo]]++; }
if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
}'`
# AWK program above erroneously prepends '/' to C:/dos/paths
# for these hosts.
case $host_os in
mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
$SED 's|/\([[A-Za-z]]:\)|\1|g'` ;;
esac
sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
else
sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
fi])
library_names_spec=
libname_spec='lib$name'
soname_spec=
shrext_cmds=.so
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
finish_eval=
shlibpath_var=
shlibpath_overrides_runpath=unknown
version_type=none
dynamic_linker="$host_os ld.so"
sys_lib_dlsearch_path_spec="/lib /usr/lib"
need_lib_prefix=unknown
hardcode_into_libs=no
# when you set need_version to no, make sure it does not cause -set_version
# flags to be left without arguments
need_version=unknown
AC_ARG_VAR([LT_SYS_LIBRARY_PATH],
[User-defined run-time library search path.])
case $host_os in
aix3*)
version_type=linux # correct to gnu/linux during the next big refactor
library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
shlibpath_var=LIBPATH
# AIX 3 has no versioning support, so we append a major version to the name.
soname_spec='$libname$release$shared_ext$major'
;;
aix[[4-9]]*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
hardcode_into_libs=yes
if test ia64 = "$host_cpu"; then
# AIX 5 supports IA64
library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
else
# With GCC up to 2.95.x, collect2 would create an import file
# for dependence libraries. The import file would start with
# the line '#! .'. This would cause the generated library to
# depend on '.', always an invalid library. This was fixed in
# development snapshots of GCC prior to 3.0.
case $host_os in
aix4 | aix4.[[01]] | aix4.[[01]].*)
if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
echo ' yes '
echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
:
else
can_build_shared=no
fi
;;
esac
# Using Import Files as archive members, it is possible to support
# filename-based versioning of shared library archives on AIX. While
# this would work for both with and without runtime linking, it will
# prevent static linking of such archives. So we do filename-based
# shared library versioning with .so extension only, which is used
# when both runtime linking and shared linking is enabled.
# Unfortunately, runtime linking may impact performance, so we do
# not want this to be the default eventually. Also, we use the
# versioned .so libs for executables only if there is the -brtl
# linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
# To allow for filename-based versioning support, we need to create
# libNAME.so.V as an archive file, containing:
# *) an Import File, referring to the versioned filename of the
# archive as well as the shared archive member, telling the
# bitwidth (32 or 64) of that shared object, and providing the
# list of exported symbols of that shared object, eventually
# decorated with the 'weak' keyword
# *) the shared object with the F_LOADONLY flag set, to really avoid
# it being seen by the linker.
# At run time we better use the real file rather than another symlink,
# but for link time we create the symlink libNAME.so -> libNAME.so.V
case $with_aix_soname,$aix_use_runtimelinking in
# AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
# soname into executable. Probably we can add versioning support to
# collect2, so additional links can be useful in future.
aix,yes) # traditional libtool
dynamic_linker='AIX unversionable lib.so'
# If using run time linking (on AIX 4.2 or later) use lib.so
# instead of lib.a to let people know that these are not
# typical AIX shared libraries.
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
;;
aix,no) # traditional AIX only
dynamic_linker='AIX lib.a[(]lib.so.V[)]'
# We preserve .a as extension for shared libraries through AIX4.2
# and later when we are not doing run time linking.
library_names_spec='$libname$release.a $libname.a'
soname_spec='$libname$release$shared_ext$major'
;;
svr4,*) # full svr4 only
dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]"
library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
# We do not specify a path in Import Files, so LIBPATH fires.
shlibpath_overrides_runpath=yes
;;
*,yes) # both, prefer svr4
dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]"
library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
# unpreferred sharedlib libNAME.a needs extra handling
postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
# We do not specify a path in Import Files, so LIBPATH fires.
shlibpath_overrides_runpath=yes
;;
*,no) # both, prefer aix
dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]"
library_names_spec='$libname$release.a $libname.a'
soname_spec='$libname$release$shared_ext$major'
# unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
;;
esac
shlibpath_var=LIBPATH
fi
;;
amigaos*)
case $host_cpu in
powerpc)
# Since July 2007 AmigaOS4 officially supports .so libraries.
# When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
;;
m68k)
library_names_spec='$libname.ixlibrary $libname.a'
# Create ${libname}_ixlibrary.a entries in /sys/libs.
finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
;;
esac
;;
beos*)
library_names_spec='$libname$shared_ext'
dynamic_linker="$host_os ld.so"
shlibpath_var=LIBRARY_PATH
;;
bsdi[[45]]*)
version_type=linux # correct to gnu/linux during the next big refactor
need_version=no
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
shlibpath_var=LD_LIBRARY_PATH
sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
# the default ld.so.conf also contains /usr/contrib/lib and
# /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
# libtool to hard-code these into programs
;;
cygwin* | mingw* | pw32* | cegcc*)
version_type=windows
shrext_cmds=.dll
need_version=no
need_lib_prefix=no
case $GCC,$cc_basename in
yes,*)
# gcc
library_names_spec='$libname.dll.a'
# DLL is installed to $(libdir)/../bin by postinstall_cmds
postinstall_cmds='base_file=`basename \$file`~
dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
dldir=$destdir/`dirname \$dlpath`~
test -d \$dldir || mkdir -p \$dldir~
$install_prog $dir/$dlname \$dldir/$dlname~
chmod a+x \$dldir/$dlname~
if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
fi'
postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
dlpath=$dir/\$dldll~
$RM \$dlpath'
shlibpath_overrides_runpath=yes
case $host_os in
cygwin*)
# Cygwin DLLs use 'cyg' prefix rather than 'lib'
soname_spec='`echo $libname | $SED -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
m4_if([$1], [],[
sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
;;
mingw* | cegcc*)
# MinGW DLLs use traditional 'lib' prefix
soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
;;
pw32*)
# pw32 DLLs use 'pw' prefix rather than 'lib'
library_names_spec='`echo $libname | $SED -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
;;
esac
dynamic_linker='Win32 ld.exe'
;;
*,cl* | *,icl*)
# Native MSVC or ICC
libname_spec='$name'
soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
library_names_spec='$libname.dll.lib'
case $build_os in
mingw*)
sys_lib_search_path_spec=
lt_save_ifs=$IFS
IFS=';'
for lt_path in $LIB
do
IFS=$lt_save_ifs
# Let DOS variable expansion print the short 8.3 style file name.
lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
done
IFS=$lt_save_ifs
# Convert to MSYS style.
sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'`
;;
cygwin*)
# Convert to unix form, then to dos form, then back to unix form
# but this time dos style (no spaces!) so that the unix form looks
# like /cygdrive/c/PROGRA~1:/cygdr...
sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
;;
*)
sys_lib_search_path_spec=$LIB
if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
# It is most probably a Windows format PATH.
sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
else
sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
fi
# FIXME: find the short name or the path components, as spaces are
# common. (e.g. "Program Files" -> "PROGRA~1")
;;
esac
# DLL is installed to $(libdir)/../bin by postinstall_cmds
postinstall_cmds='base_file=`basename \$file`~
dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
dldir=$destdir/`dirname \$dlpath`~
test -d \$dldir || mkdir -p \$dldir~
$install_prog $dir/$dlname \$dldir/$dlname'
postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
dlpath=$dir/\$dldll~
$RM \$dlpath'
shlibpath_overrides_runpath=yes
dynamic_linker='Win32 link.exe'
;;
*)
# Assume MSVC and ICC wrapper
library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib'
dynamic_linker='Win32 ld.exe'
;;
esac
# FIXME: first we should search . and the directory the executable is in
shlibpath_var=PATH
;;
darwin* | rhapsody*)
dynamic_linker="$host_os dyld"
version_type=darwin
need_lib_prefix=no
need_version=no
library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
soname_spec='$libname$release$major$shared_ext'
shlibpath_overrides_runpath=yes
shlibpath_var=DYLD_LIBRARY_PATH
shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
m4_if([$1], [],[
sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
;;
dgux*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
;;
freebsd* | dragonfly* | midnightbsd*)
# DragonFly does not have aout. When/if they implement a new
# versioning mechanism, adjust this.
if test -x /usr/bin/objformat; then
objformat=`/usr/bin/objformat`
else
case $host_os in
freebsd[[23]].*) objformat=aout ;;
*) objformat=elf ;;
esac
fi
version_type=freebsd-$objformat
case $version_type in
freebsd-elf*)
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
need_version=no
need_lib_prefix=no
;;
freebsd-*)
library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
need_version=yes
;;
esac
shlibpath_var=LD_LIBRARY_PATH
case $host_os in
freebsd2.*)
shlibpath_overrides_runpath=yes
;;
freebsd3.[[01]]* | freebsdelf3.[[01]]*)
shlibpath_overrides_runpath=yes
hardcode_into_libs=yes
;;
freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
;;
*) # from 4.6 on, and DragonFly
shlibpath_overrides_runpath=yes
hardcode_into_libs=yes
;;
esac
;;
haiku*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
dynamic_linker="$host_os runtime_loader"
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LIBRARY_PATH
shlibpath_overrides_runpath=no
sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
hardcode_into_libs=yes
;;
hpux9* | hpux10* | hpux11*)
# Give a soname corresponding to the major version so that dld.sl refuses to
# link against other versions.
version_type=sunos
need_lib_prefix=no
need_version=no
case $host_cpu in
ia64*)
shrext_cmds='.so'
hardcode_into_libs=yes
dynamic_linker="$host_os dld.so"
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
if test 32 = "$HPUX_IA64_MODE"; then
sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
sys_lib_dlsearch_path_spec=/usr/lib/hpux32
else
sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
sys_lib_dlsearch_path_spec=/usr/lib/hpux64
fi
;;
hppa*64*)
shrext_cmds='.sl'
hardcode_into_libs=yes
dynamic_linker="$host_os dld.sl"
shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
;;
*)
shrext_cmds='.sl'
dynamic_linker="$host_os dld.sl"
shlibpath_var=SHLIB_PATH
shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
;;
esac
# HP-UX runs *really* slowly unless shared libraries are mode 555, ...
postinstall_cmds='chmod 555 $lib'
# or fails outright, so override atomically:
install_override_mode=555
;;
interix[[3-9]]*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
;;
irix5* | irix6* | nonstopux*)
case $host_os in
nonstopux*) version_type=nonstopux ;;
*)
if test yes = "$lt_cv_prog_gnu_ld"; then
version_type=linux # correct to gnu/linux during the next big refactor
else
version_type=irix
fi ;;
esac
need_lib_prefix=no
need_version=no
soname_spec='$libname$release$shared_ext$major'
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
case $host_os in
irix5* | nonstopux*)
libsuff= shlibsuff=
;;
*)
case $LD in # libtool.m4 will add one of these switches to LD
*-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
libsuff= shlibsuff= libmagic=32-bit;;
*-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
libsuff=32 shlibsuff=N32 libmagic=N32;;
*-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
libsuff=64 shlibsuff=64 libmagic=64-bit;;
*) libsuff= shlibsuff= libmagic=never-match;;
esac
;;
esac
shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
shlibpath_overrides_runpath=no
sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
hardcode_into_libs=yes
;;
# No shared lib support for Linux oldld, aout, or coff.
linux*oldld* | linux*aout* | linux*coff*)
dynamic_linker=no
;;
linux*android*)
version_type=none # Android doesn't support versioned libraries.
need_lib_prefix=no
need_version=no
library_names_spec='$libname$release$shared_ext'
soname_spec='$libname$release$shared_ext'
finish_cmds=
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
# This implies no fast_install, which is unacceptable.
# Some rework will be needed to allow for fast_install
# before this can be enabled.
hardcode_into_libs=yes
dynamic_linker='Android linker'
# Don't embed -rpath directories since the linker doesn't support them.
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
;;
# This must be glibc/ELF.
linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
# Some binutils ld are patched to set DT_RUNPATH
AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath],
[lt_cv_shlibpath_overrides_runpath=no
save_LDFLAGS=$LDFLAGS
save_libdir=$libdir
eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
[AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
[lt_cv_shlibpath_overrides_runpath=yes])])
LDFLAGS=$save_LDFLAGS
libdir=$save_libdir
])
shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
# This implies no fast_install, which is unacceptable.
# Some rework will be needed to allow for fast_install
# before this can be enabled.
hardcode_into_libs=yes
# Add ABI-specific directories to the system library path.
sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
# Ideally, we could use ldconfig to report *all* directores which are
# searched for libraries, however this is still not possible. Aside from not
# being certain /sbin/ldconfig is available, command
# 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
# even though it is searched at run-time. Try to do the best guess by
# appending ld.so.conf contents (and includes) to the search path.
if test -f /etc/ld.so.conf; then
lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
fi
# We used to test for /lib/ld.so.1 and disable shared libraries on
# powerpc, because MkLinux only supported shared libraries with the
# GNU dynamic linker. Since this was broken with cross compilers,
# most powerpc-linux boxes support dynamic linking these days and
# people can always --disable-shared, the test was removed, and we
# assume the GNU/Linux dynamic linker is in use.
dynamic_linker='GNU/Linux ld.so'
;;
netbsd*)
version_type=sunos
need_lib_prefix=no
need_version=no
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
dynamic_linker='NetBSD (a.out) ld.so'
else
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
dynamic_linker='NetBSD ld.elf_so'
fi
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
hardcode_into_libs=yes
;;
newsos6)
version_type=linux # correct to gnu/linux during the next big refactor
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
;;
*nto* | *qnx*)
version_type=qnx
need_lib_prefix=no
need_version=no
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
dynamic_linker='ldqnx.so'
;;
openbsd* | bitrig*)
version_type=sunos
sys_lib_dlsearch_path_spec=/usr/lib
need_lib_prefix=no
if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
need_version=no
else
need_version=yes
fi
library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
;;
os2*)
libname_spec='$name'
version_type=windows
shrext_cmds=.dll
need_version=no
need_lib_prefix=no
# OS/2 can only load a DLL with a base name of 8 characters or less.
soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
v=$($ECHO $release$versuffix | tr -d .-);
n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
$ECHO $n$v`$shared_ext'
library_names_spec='${libname}_dll.$libext'
dynamic_linker='OS/2 ld.exe'
shlibpath_var=BEGINLIBPATH
sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
postinstall_cmds='base_file=`basename \$file`~
dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
dldir=$destdir/`dirname \$dlpath`~
test -d \$dldir || mkdir -p \$dldir~
$install_prog $dir/$dlname \$dldir/$dlname~
chmod a+x \$dldir/$dlname~
if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
fi'
postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
dlpath=$dir/\$dldll~
$RM \$dlpath'
;;
osf3* | osf4* | osf5*)
version_type=osf
need_lib_prefix=no
need_version=no
soname_spec='$libname$release$shared_ext$major'
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
;;
rdos*)
dynamic_linker=no
;;
solaris*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
hardcode_into_libs=yes
# ldd complains unless libraries are executable
postinstall_cmds='chmod +x $lib'
;;
sunos4*)
version_type=sunos
library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
if test yes = "$with_gnu_ld"; then
need_lib_prefix=no
fi
need_version=yes
;;
sysv4 | sysv4.3*)
version_type=linux # correct to gnu/linux during the next big refactor
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
case $host_vendor in
sni)
shlibpath_overrides_runpath=no
need_lib_prefix=no
runpath_var=LD_RUN_PATH
;;
siemens)
need_lib_prefix=no
;;
motorola)
need_lib_prefix=no
need_version=no
shlibpath_overrides_runpath=no
sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
;;
esac
;;
sysv4*MP*)
if test -d /usr/nec; then
version_type=linux # correct to gnu/linux during the next big refactor
library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
soname_spec='$libname$shared_ext.$major'
shlibpath_var=LD_LIBRARY_PATH
fi
;;
sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
version_type=sco
need_lib_prefix=no
need_version=no
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
hardcode_into_libs=yes
if test yes = "$with_gnu_ld"; then
sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
else
sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
case $host_os in
sco3.2v5*)
sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
;;
esac
fi
sys_lib_dlsearch_path_spec='/usr/lib'
;;
tpf*)
# TPF is a cross-target only. Preferred cross-host = GNU/Linux.
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
;;
uts4*)
version_type=linux # correct to gnu/linux during the next big refactor
library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
;;
*)
dynamic_linker=no
;;
esac
AC_MSG_RESULT([$dynamic_linker])
test no = "$dynamic_linker" && can_build_shared=no
variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
if test yes = "$GCC"; then
variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
fi
if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
fi
if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
fi
# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
_LT_DECL([], [variables_saved_for_relink], [1],
[Variables whose values should be saved in libtool wrapper scripts and
restored at link time])
_LT_DECL([], [need_lib_prefix], [0],
[Do we need the "lib" prefix for modules?])
_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
_LT_DECL([], [version_type], [0], [Library versioning type])
_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable])
_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
_LT_DECL([], [shlibpath_overrides_runpath], [0],
[Is shlibpath searched before the hard-coded library search path?])
_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
_LT_DECL([], [library_names_spec], [1],
[[List of archive names. First name is the real one, the rest are links.
The last name is the one that the linker finds with -lNAME]])
_LT_DECL([], [soname_spec], [1],
[[The coded name of the library, if different from the real name]])
_LT_DECL([], [install_override_mode], [1],
[Permission mode override for installation of shared libraries])
_LT_DECL([], [postinstall_cmds], [2],
[Command to use after installation of a shared archive])
_LT_DECL([], [postuninstall_cmds], [2],
[Command to use after uninstallation of a shared archive])
_LT_DECL([], [finish_cmds], [2],
[Commands used to finish a libtool library installation in a directory])
_LT_DECL([], [finish_eval], [1],
[[As "finish_cmds", except a single script fragment to be evaled but
not shown]])
_LT_DECL([], [hardcode_into_libs], [0],
[Whether we should hardcode library paths into libraries])
_LT_DECL([], [sys_lib_search_path_spec], [2],
[Compile-time system search path for libraries])
_LT_DECL([sys_lib_dlsearch_path_spec], [configure_time_dlsearch_path], [2],
[Detected run-time system search path for libraries])
_LT_DECL([], [configure_time_lt_sys_library_path], [2],
[Explicit LT_SYS_LIBRARY_PATH set during ./configure time])
])# _LT_SYS_DYNAMIC_LINKER
# _LT_PATH_TOOL_PREFIX(TOOL)
# --------------------------
# find a file program that can recognize shared library
AC_DEFUN([_LT_PATH_TOOL_PREFIX],
[m4_require([_LT_DECL_EGREP])dnl
AC_MSG_CHECKING([for $1])
AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
[case $MAGIC_CMD in
[[\\/*] | ?:[\\/]*])
lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
;;
*)
lt_save_MAGIC_CMD=$MAGIC_CMD
lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
dnl $ac_dummy forces splitting on constant user-supplied paths.
dnl POSIX.2 word splitting is done only on the output of word expansions,
dnl not every word. This closes a longstanding sh security hole.
ac_dummy="m4_if([$2], , $PATH, [$2])"
for ac_dir in $ac_dummy; do
IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
if test -f "$ac_dir/$1"; then
lt_cv_path_MAGIC_CMD=$ac_dir/"$1"
if test -n "$file_magic_test_file"; then
case $deplibs_check_method in
"file_magic "*)
file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
MAGIC_CMD=$lt_cv_path_MAGIC_CMD
if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
$EGREP "$file_magic_regex" > /dev/null; then
:
else
cat <<_LT_EOF 1>&2
*** Warning: the command libtool uses to detect shared libraries,
*** $file_magic_cmd, produces output that libtool cannot recognize.
*** The result is that libtool may fail to recognize shared libraries
*** as such. This will affect the creation of libtool libraries that
*** depend on shared libraries, but programs linked with such libtool
*** libraries will work regardless of this problem. Nevertheless, you
*** may want to report the problem to your system manager and/or to
*** bug-libtool@gnu.org
_LT_EOF
fi ;;
esac
fi
break
fi
done
IFS=$lt_save_ifs
MAGIC_CMD=$lt_save_MAGIC_CMD
;;
esac])
MAGIC_CMD=$lt_cv_path_MAGIC_CMD
if test -n "$MAGIC_CMD"; then
AC_MSG_RESULT($MAGIC_CMD)
else
AC_MSG_RESULT(no)
fi
_LT_DECL([], [MAGIC_CMD], [0],
[Used to examine libraries when file_magic_cmd begins with "file"])dnl
])# _LT_PATH_TOOL_PREFIX
# Old name:
AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
# _LT_PATH_MAGIC
# --------------
# find a file program that can recognize a shared library
m4_defun([_LT_PATH_MAGIC],
[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
if test -z "$lt_cv_path_MAGIC_CMD"; then
if test -n "$ac_tool_prefix"; then
_LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
else
MAGIC_CMD=:
fi
fi
])# _LT_PATH_MAGIC
# LT_PATH_LD
# ----------
# find the pathname to the GNU or non-GNU linker
AC_DEFUN([LT_PATH_LD],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
m4_require([_LT_DECL_SED])dnl
m4_require([_LT_DECL_EGREP])dnl
m4_require([_LT_PROG_ECHO_BACKSLASH])dnl
AC_ARG_WITH([gnu-ld],
[AS_HELP_STRING([--with-gnu-ld],
[assume the C compiler uses GNU ld @<:@default=no@:>@])],
[test no = "$withval" || with_gnu_ld=yes],
[with_gnu_ld=no])dnl
ac_prog=ld
if test yes = "$GCC"; then
# Check if gcc -print-prog-name=ld gives a path.
AC_MSG_CHECKING([for ld used by $CC])
case $host in
*-*-mingw*)
# gcc leaves a trailing carriage return, which upsets mingw
ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
*)
ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
esac
case $ac_prog in
# Accept absolute paths.
[[\\/]]* | ?:[[\\/]]*)
re_direlt='/[[^/]][[^/]]*/\.\./'
# Canonicalize the pathname of ld
ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
done
test -z "$LD" && LD=$ac_prog
;;
"")
# If it fails, then pretend we aren't using GCC.
ac_prog=ld
;;
*)
# If it is relative, then search for the first ld in PATH.
with_gnu_ld=unknown
;;
esac
elif test yes = "$with_gnu_ld"; then
AC_MSG_CHECKING([for GNU ld])
else
AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL(lt_cv_path_LD,
[if test -z "$LD"; then
lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
for ac_dir in $PATH; do
IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
lt_cv_path_LD=$ac_dir/$ac_prog
# Check to see if the program is GNU ld. I'd rather use --version,
# but apparently some variants of GNU ld only accept -v.
# Break only if it was the GNU/non-GNU ld that we prefer.
case `"$lt_cv_path_LD" -v 2>&1 &1 conftest.i
cat conftest.i conftest.i >conftest2.i
: ${lt_DD:=$DD}
AC_PATH_PROGS_FEATURE_CHECK([lt_DD], [dd],
[if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then
cmp -s conftest.i conftest.out \
&& ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
fi])
rm -f conftest.i conftest2.i conftest.out])
])# _LT_PATH_DD
# _LT_CMD_TRUNCATE
# ----------------
# find command to truncate a binary pipe
m4_defun([_LT_CMD_TRUNCATE],
[m4_require([_LT_PATH_DD])
AC_CACHE_CHECK([how to truncate binary pipes], [lt_cv_truncate_bin],
[printf 0123456789abcdef0123456789abcdef >conftest.i
cat conftest.i conftest.i >conftest2.i
lt_cv_truncate_bin=
if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then
cmp -s conftest.i conftest.out \
&& lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
fi
rm -f conftest.i conftest2.i conftest.out
test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"])
_LT_DECL([lt_truncate_bin], [lt_cv_truncate_bin], [1],
[Command to truncate a binary pipe])
])# _LT_CMD_TRUNCATE
# _LT_CHECK_MAGIC_METHOD
# ----------------------
# how to check for library dependencies
# -- PORTME fill in with the dynamic library characteristics
m4_defun([_LT_CHECK_MAGIC_METHOD],
[m4_require([_LT_DECL_EGREP])
m4_require([_LT_DECL_OBJDUMP])
AC_CACHE_CHECK([how to recognize dependent libraries],
lt_cv_deplibs_check_method,
[lt_cv_file_magic_cmd='$MAGIC_CMD'
lt_cv_file_magic_test_file=
lt_cv_deplibs_check_method='unknown'
# Need to set the preceding variable on all platforms that support
# interlibrary dependencies.
# 'none' -- dependencies not supported.
# 'unknown' -- same as none, but documents that we really don't know.
# 'pass_all' -- all dependencies passed with no checks.
# 'test_compile' -- check by making test program.
# 'file_magic [[regex]]' -- check by looking for files in library path
# that responds to the $file_magic_cmd with a given extended regex.
# If you have 'file' or equivalent on your system and you're not sure
# whether 'pass_all' will *always* work, you probably want this one.
case $host_os in
aix[[4-9]]*)
lt_cv_deplibs_check_method=pass_all
;;
beos*)
lt_cv_deplibs_check_method=pass_all
;;
bsdi[[45]]*)
lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
lt_cv_file_magic_cmd='$FILECMD -L'
lt_cv_file_magic_test_file=/shlib/libc.so
;;
cygwin*)
# func_win32_libid is a shell function defined in ltmain.sh
lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
lt_cv_file_magic_cmd='func_win32_libid'
;;
mingw* | pw32*)
# Base MSYS/MinGW do not provide the 'file' command needed by
# func_win32_libid shell function, so use a weaker test based on 'objdump',
# unless we find 'file', for example because we are cross-compiling.
if ( file / ) >/dev/null 2>&1; then
lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
lt_cv_file_magic_cmd='func_win32_libid'
else
# Keep this pattern in sync with the one in func_win32_libid.
lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
lt_cv_file_magic_cmd='$OBJDUMP -f'
fi
;;
cegcc*)
# use the weaker test based on 'objdump'. See mingw*.
lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
lt_cv_file_magic_cmd='$OBJDUMP -f'
;;
darwin* | rhapsody*)
lt_cv_deplibs_check_method=pass_all
;;
freebsd* | dragonfly* | midnightbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
case $host_cpu in
i*86 )
# Not sure whether the presence of OpenBSD here was a mistake.
# Let's accept both of them until this is cleared up.
lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
lt_cv_file_magic_cmd=$FILECMD
lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
;;
esac
else
lt_cv_deplibs_check_method=pass_all
fi
;;
haiku*)
lt_cv_deplibs_check_method=pass_all
;;
hpux10.20* | hpux11*)
lt_cv_file_magic_cmd=$FILECMD
case $host_cpu in
ia64*)
lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
;;
hppa*64*)
[lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]']
lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
;;
*)
lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library'
lt_cv_file_magic_test_file=/usr/lib/libc.sl
;;
esac
;;
interix[[3-9]]*)
# PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
;;
irix5* | irix6* | nonstopux*)
case $LD in
*-32|*"-32 ") libmagic=32-bit;;
*-n32|*"-n32 ") libmagic=N32;;
*-64|*"-64 ") libmagic=64-bit;;
*) libmagic=never-match;;
esac
lt_cv_deplibs_check_method=pass_all
;;
# This must be glibc/ELF.
linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
lt_cv_deplibs_check_method=pass_all
;;
netbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
else
lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
fi
;;
newos6*)
lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
lt_cv_file_magic_cmd=$FILECMD
lt_cv_file_magic_test_file=/usr/lib/libnls.so
;;
*nto* | *qnx*)
lt_cv_deplibs_check_method=pass_all
;;
openbsd* | bitrig*)
if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
else
lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
fi
;;
osf3* | osf4* | osf5*)
lt_cv_deplibs_check_method=pass_all
;;
rdos*)
lt_cv_deplibs_check_method=pass_all
;;
solaris*)
lt_cv_deplibs_check_method=pass_all
;;
sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
lt_cv_deplibs_check_method=pass_all
;;
sysv4 | sysv4.3*)
case $host_vendor in
motorola)
lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
;;
ncr)
lt_cv_deplibs_check_method=pass_all
;;
sequent)
lt_cv_file_magic_cmd='/bin/file'
lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
;;
sni)
lt_cv_file_magic_cmd='/bin/file'
lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
lt_cv_file_magic_test_file=/lib/libc.so
;;
siemens)
lt_cv_deplibs_check_method=pass_all
;;
pc)
lt_cv_deplibs_check_method=pass_all
;;
esac
;;
tpf*)
lt_cv_deplibs_check_method=pass_all
;;
os2*)
lt_cv_deplibs_check_method=pass_all
;;
esac
])
file_magic_glob=
want_nocaseglob=no
if test "$build" = "$host"; then
case $host_os in
mingw* | pw32*)
if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
want_nocaseglob=yes
else
file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"`
fi
;;
esac
fi
file_magic_cmd=$lt_cv_file_magic_cmd
deplibs_check_method=$lt_cv_deplibs_check_method
test -z "$deplibs_check_method" && deplibs_check_method=unknown
_LT_DECL([], [deplibs_check_method], [1],
[Method to check whether dependent libraries are shared objects])
_LT_DECL([], [file_magic_cmd], [1],
[Command to use when deplibs_check_method = "file_magic"])
_LT_DECL([], [file_magic_glob], [1],
[How to find potential files when deplibs_check_method = "file_magic"])
_LT_DECL([], [want_nocaseglob], [1],
[Find potential files using nocaseglob when deplibs_check_method = "file_magic"])
])# _LT_CHECK_MAGIC_METHOD
# LT_PATH_NM
# ----------
# find the pathname to a BSD- or MS-compatible name lister
AC_DEFUN([LT_PATH_NM],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
[if test -n "$NM"; then
# Let the user override the test.
lt_cv_path_NM=$NM
else
lt_nm_to_check=${ac_tool_prefix}nm
if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
lt_nm_to_check="$lt_nm_to_check nm"
fi
for lt_tmp_nm in $lt_nm_to_check; do
lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
tmp_nm=$ac_dir/$lt_tmp_nm
if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
# Check to see if the nm accepts a BSD-compat flag.
# Adding the 'sed 1q' prevents false positives on HP-UX, which says:
# nm: unknown option "B" ignored
# Tru64's nm complains that /dev/null is an invalid object file
# MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
case $build_os in
mingw*) lt_bad_file=conftest.nm/nofile ;;
*) lt_bad_file=/dev/null ;;
esac
case `"$tmp_nm" -B $lt_bad_file 2>&1 | $SED '1q'` in
*$lt_bad_file* | *'Invalid file or object type'*)
lt_cv_path_NM="$tmp_nm -B"
break 2
;;
*)
case `"$tmp_nm" -p /dev/null 2>&1 | $SED '1q'` in
*/dev/null*)
lt_cv_path_NM="$tmp_nm -p"
break 2
;;
*)
lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
continue # so that we can try to find one that supports BSD flags
;;
esac
;;
esac
fi
done
IFS=$lt_save_ifs
done
: ${lt_cv_path_NM=no}
fi])
if test no != "$lt_cv_path_NM"; then
NM=$lt_cv_path_NM
else
# Didn't find any BSD compatible name lister, look for dumpbin.
if test -n "$DUMPBIN"; then :
# Let the user override the test.
else
AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :)
case `$DUMPBIN -symbols -headers /dev/null 2>&1 | $SED '1q'` in
*COFF*)
DUMPBIN="$DUMPBIN -symbols -headers"
;;
*)
DUMPBIN=:
;;
esac
fi
AC_SUBST([DUMPBIN])
if test : != "$DUMPBIN"; then
NM=$DUMPBIN
fi
fi
test -z "$NM" && NM=nm
AC_SUBST([NM])
_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
[lt_cv_nm_interface="BSD nm"
echo "int some_variable = 0;" > conftest.$ac_ext
(eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
(eval "$ac_compile" 2>conftest.err)
cat conftest.err >&AS_MESSAGE_LOG_FD
(eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
(eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
cat conftest.err >&AS_MESSAGE_LOG_FD
(eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD)
cat conftest.out >&AS_MESSAGE_LOG_FD
if $GREP 'External.*some_variable' conftest.out > /dev/null; then
lt_cv_nm_interface="MS dumpbin"
fi
rm -f conftest*])
])# LT_PATH_NM
# Old names:
AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AM_PROG_NM], [])
dnl AC_DEFUN([AC_PROG_NM], [])
# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
# --------------------------------
# how to determine the name of the shared library
# associated with a specific link library.
# -- PORTME fill in with the dynamic library characteristics
m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB],
[m4_require([_LT_DECL_EGREP])
m4_require([_LT_DECL_OBJDUMP])
m4_require([_LT_DECL_DLLTOOL])
AC_CACHE_CHECK([how to associate runtime and link libraries],
lt_cv_sharedlib_from_linklib_cmd,
[lt_cv_sharedlib_from_linklib_cmd='unknown'
case $host_os in
cygwin* | mingw* | pw32* | cegcc*)
# two different shell functions defined in ltmain.sh;
# decide which one to use based on capabilities of $DLLTOOL
case `$DLLTOOL --help 2>&1` in
*--identify-strict*)
lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
;;
*)
lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
;;
esac
;;
*)
# fallback: assume linklib IS sharedlib
lt_cv_sharedlib_from_linklib_cmd=$ECHO
;;
esac
])
sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
_LT_DECL([], [sharedlib_from_linklib_cmd], [1],
[Command to associate shared and link libraries])
])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
# _LT_PATH_MANIFEST_TOOL
# ----------------------
# locate the manifest tool
m4_defun([_LT_PATH_MANIFEST_TOOL],
[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :)
test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool],
[lt_cv_path_mainfest_tool=no
echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD
$MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
cat conftest.err >&AS_MESSAGE_LOG_FD
if $GREP 'Manifest Tool' conftest.out > /dev/null; then
lt_cv_path_mainfest_tool=yes
fi
rm -f conftest*])
if test yes != "$lt_cv_path_mainfest_tool"; then
MANIFEST_TOOL=:
fi
_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl
])# _LT_PATH_MANIFEST_TOOL
# _LT_DLL_DEF_P([FILE])
# ---------------------
# True iff FILE is a Windows DLL '.def' file.
# Keep in sync with func_dll_def_p in the libtool script
AC_DEFUN([_LT_DLL_DEF_P],
[dnl
test DEF = "`$SED -n dnl
-e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace
-e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments
-e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl
-e q dnl Only consider the first "real" line
$1`" dnl
])# _LT_DLL_DEF_P
# LT_LIB_M
# --------
# check for math library
AC_DEFUN([LT_LIB_M],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
LIBM=
case $host in
*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
# These system don't have libm, or don't need it
;;
*-ncr-sysv4.3*)
AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw)
AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
;;
*)
AC_CHECK_LIB(m, cos, LIBM=-lm)
;;
esac
AC_SUBST([LIBM])
])# LT_LIB_M
# Old name:
AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_CHECK_LIBM], [])
# _LT_COMPILER_NO_RTTI([TAGNAME])
# -------------------------------
m4_defun([_LT_COMPILER_NO_RTTI],
[m4_require([_LT_TAG_COMPILER])dnl
_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
if test yes = "$GCC"; then
case $cc_basename in
nvcc*)
_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;;
*)
_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;;
esac
_LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
lt_cv_prog_compiler_rtti_exceptions,
[-fno-rtti -fno-exceptions], [],
[_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
fi
_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
[Compiler flag to turn off builtin functions])
])# _LT_COMPILER_NO_RTTI
# _LT_CMD_GLOBAL_SYMBOLS
# ----------------------
m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_AWK])dnl
AC_REQUIRE([LT_PATH_NM])dnl
AC_REQUIRE([LT_PATH_LD])dnl
m4_require([_LT_DECL_SED])dnl
m4_require([_LT_DECL_EGREP])dnl
m4_require([_LT_TAG_COMPILER])dnl
# Check for command to grab the raw symbol name followed by C symbol from nm.
AC_MSG_CHECKING([command to parse $NM output from $compiler object])
AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
[
# These are sane defaults that work on at least a few old systems.
# [They come from Ultrix. What could be older than Ultrix?!! ;)]
# Character class describing NM global symbol codes.
symcode='[[BCDEGRST]]'
# Regexp to match symbols that can be accessed directly from C.
sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
# Define system-specific variables.
case $host_os in
aix*)
symcode='[[BCDT]]'
;;
cygwin* | mingw* | pw32* | cegcc*)
symcode='[[ABCDGISTW]]'
;;
hpux*)
if test ia64 = "$host_cpu"; then
symcode='[[ABCDEGRST]]'
fi
;;
irix* | nonstopux*)
symcode='[[BCDEGRST]]'
;;
osf*)
symcode='[[BCDEGQRST]]'
;;
solaris*)
symcode='[[BDRT]]'
;;
sco3.2v5*)
symcode='[[DT]]'
;;
sysv4.2uw2*)
symcode='[[DT]]'
;;
sysv5* | sco5v6* | unixware* | OpenUNIX*)
symcode='[[ABDT]]'
;;
sysv4)
symcode='[[DFNSTU]]'
;;
esac
# If we're using GNU nm, then use its standard symbol codes.
case `$NM -V 2>&1` in
*GNU* | *'with BFD'*)
symcode='[[ABCDGIRSTW]]' ;;
esac
if test "$lt_cv_nm_interface" = "MS dumpbin"; then
# Gets list of data symbols to import.
lt_cv_sys_global_symbol_to_import="$SED -n -e 's/^I .* \(.*\)$/\1/p'"
# Adjust the below global symbol transforms to fixup imported variables.
lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'"
lt_c_name_lib_hook="\
-e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\
-e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'"
else
# Disable hooks by default.
lt_cv_sys_global_symbol_to_import=
lt_cdecl_hook=
lt_c_name_hook=
lt_c_name_lib_hook=
fi
# Transform an extracted symbol line into a proper C declaration.
# Some systems (esp. on ia64) link data and code symbols differently,
# so use this general approach.
lt_cv_sys_global_symbol_to_cdecl="$SED -n"\
$lt_cdecl_hook\
" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
# Transform an extracted symbol line into symbol name and symbol address
lt_cv_sys_global_symbol_to_c_name_address="$SED -n"\
$lt_c_name_hook\
" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'"
# Transform an extracted symbol line into symbol name with lib prefix and
# symbol address.
lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="$SED -n"\
$lt_c_name_lib_hook\
" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\
" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'"
# Handle CRLF in mingw tool chain
opt_cr=
case $build_os in
mingw*)
opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
;;
esac
# Try without a prefix underscore, then with it.
for ac_symprfx in "" "_"; do
# Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
symxfrm="\\1 $ac_symprfx\\2 \\2"
# Write the raw and C identifiers.
if test "$lt_cv_nm_interface" = "MS dumpbin"; then
# Fake it for dumpbin and say T for any non-static function,
# D for any global variable and I for any imported variable.
# Also find C++ and __fastcall symbols from MSVC++ or ICC,
# which start with @ or ?.
lt_cv_sys_global_symbol_pipe="$AWK ['"\
" {last_section=section; section=\$ 3};"\
" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
" \$ 0!~/External *\|/{next};"\
" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
" {if(hide[section]) next};"\
" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
" ' prfx=^$ac_symprfx]"
else
lt_cv_sys_global_symbol_pipe="$SED -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
fi
lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | $SED '/ __gnu_lto/d'"
# Check to see that the pipe works correctly.
pipe_works=no
rm -f conftest*
cat > conftest.$ac_ext <<_LT_EOF
#ifdef __cplusplus
extern "C" {
#endif
char nm_test_var;
void nm_test_func(void);
void nm_test_func(void){}
#ifdef __cplusplus
}
#endif
int main(){nm_test_var='a';nm_test_func();return(0);}
_LT_EOF
if AC_TRY_EVAL(ac_compile); then
# Now try to grab the symbols.
nlist=conftest.nm
if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then
# Try sorting and uniquifying the output.
if sort "$nlist" | uniq > "$nlist"T; then
mv -f "$nlist"T "$nlist"
else
rm -f "$nlist"T
fi
# Make sure that we snagged all the symbols we need.
if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
cat <<_LT_EOF > conftest.$ac_ext
/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
/* DATA imports from DLLs on WIN32 can't be const, because runtime
relocations are performed -- see ld's documentation on pseudo-relocs. */
# define LT@&t@_DLSYM_CONST
#elif defined __osf__
/* This system does not cope well with relocations in const data. */
# define LT@&t@_DLSYM_CONST
#else
# define LT@&t@_DLSYM_CONST const
#endif
#ifdef __cplusplus
extern "C" {
#endif
_LT_EOF
# Now generate the symbol file.
eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
cat <<_LT_EOF >> conftest.$ac_ext
/* The mapping between symbol names and symbols. */
LT@&t@_DLSYM_CONST struct {
const char *name;
void *address;
}
lt__PROGRAM__LTX_preloaded_symbols[[]] =
{
{ "@PROGRAM@", (void *) 0 },
_LT_EOF
$SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
cat <<\_LT_EOF >> conftest.$ac_ext
{0, (void *) 0}
};
/* This works around a problem in FreeBSD linker */
#ifdef FREEBSD_WORKAROUND
static const void *lt_preloaded_setup() {
return lt__PROGRAM__LTX_preloaded_symbols;
}
#endif
#ifdef __cplusplus
}
#endif
_LT_EOF
# Now try linking the two files.
mv conftest.$ac_objext conftstm.$ac_objext
lt_globsym_save_LIBS=$LIBS
lt_globsym_save_CFLAGS=$CFLAGS
LIBS=conftstm.$ac_objext
CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then
pipe_works=yes
fi
LIBS=$lt_globsym_save_LIBS
CFLAGS=$lt_globsym_save_CFLAGS
else
echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
fi
else
echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
fi
else
echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
fi
else
echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
cat conftest.$ac_ext >&5
fi
rm -rf conftest* conftst*
# Do not use the global_symbol_pipe unless it works.
if test yes = "$pipe_works"; then
break
else
lt_cv_sys_global_symbol_pipe=
fi
done
])
if test -z "$lt_cv_sys_global_symbol_pipe"; then
lt_cv_sys_global_symbol_to_cdecl=
fi
if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
AC_MSG_RESULT(failed)
else
AC_MSG_RESULT(ok)
fi
# Response file support.
if test "$lt_cv_nm_interface" = "MS dumpbin"; then
nm_file_list_spec='@'
elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then
nm_file_list_spec='@'
fi
_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
[Take the output of nm and produce a listing of raw symbols and C names])
_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
[Transform the output of nm in a proper C declaration])
_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1],
[Transform the output of nm into a list of symbols to manually relocate])
_LT_DECL([global_symbol_to_c_name_address],
[lt_cv_sys_global_symbol_to_c_name_address], [1],
[Transform the output of nm in a C name address pair])
_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
[lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
[Transform the output of nm in a C name address pair when lib prefix is needed])
_LT_DECL([nm_interface], [lt_cv_nm_interface], [1],
[The name lister interface])
_LT_DECL([], [nm_file_list_spec], [1],
[Specify filename containing input files for $NM])
]) # _LT_CMD_GLOBAL_SYMBOLS
# _LT_COMPILER_PIC([TAGNAME])
# ---------------------------
m4_defun([_LT_COMPILER_PIC],
[m4_require([_LT_TAG_COMPILER])dnl
_LT_TAGVAR(lt_prog_compiler_wl, $1)=
_LT_TAGVAR(lt_prog_compiler_pic, $1)=
_LT_TAGVAR(lt_prog_compiler_static, $1)=
m4_if([$1], [CXX], [
# C++ specific cases for pic, static, wl, etc.
if test yes = "$GXX"; then
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
case $host_os in
aix*)
# All AIX code is PIC.
if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
fi
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
amigaos*)
case $host_cpu in
powerpc)
# see comment about AmigaOS4 .so support
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
m68k)
# FIXME: we need at least 68020 code to build shared libraries, but
# adding the '-m68020' flag to GCC prevents building anything better,
# like '-m68040'.
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
;;
esac
;;
beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
# PIC is the default for these OSes.
;;
mingw* | cygwin* | os2* | pw32* | cegcc*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
# Although the cygwin gcc ignores -fPIC, still need this for old-style
# (--disable-auto-import) libraries
m4_if([$1], [GCJ], [],
[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
case $host_os in
os2*)
_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
;;
esac
;;
darwin* | rhapsody*)
# PIC is the default on this platform
# Common symbols not allowed in MH_DYLIB files
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
;;
*djgpp*)
# DJGPP does not support shared libraries at all
_LT_TAGVAR(lt_prog_compiler_pic, $1)=
;;
haiku*)
# PIC is the default for Haiku.
# The "-static" flag exists, but is broken.
_LT_TAGVAR(lt_prog_compiler_static, $1)=
;;
interix[[3-9]]*)
# Interix 3.x gcc -fpic/-fPIC options generate broken code.
# Instead, we relocate shared libraries at runtime.
;;
sysv4*MP*)
if test -d /usr/nec; then
_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
fi
;;
hpux*)
# PIC is the default for 64-bit PA HP-UX, but not for 32-bit
# PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
# sets the default TLS model and affects inlining.
case $host_cpu in
hppa*64*)
;;
*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
esac
;;
*qnx* | *nto*)
# QNX uses GNU C++, but need to define -shared option too, otherwise
# it will coredump.
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
;;
*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
esac
else
case $host_os in
aix[[4-9]]*)
# All AIX code is PIC.
if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
else
_LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
fi
;;
chorus*)
case $cc_basename in
cxch68*)
# Green Hills C++ Compiler
# _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
;;
esac
;;
mingw* | cygwin* | os2* | pw32* | cegcc*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
m4_if([$1], [GCJ], [],
[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
;;
dgux*)
case $cc_basename in
ec++*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
;;
ghcx*)
# Green Hills C++ Compiler
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
;;
*)
;;
esac
;;
freebsd* | dragonfly* | midnightbsd*)
# FreeBSD uses GNU C++
;;
hpux9* | hpux10* | hpux11*)
case $cc_basename in
CC*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
if test ia64 != "$host_cpu"; then
_LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
fi
;;
aCC*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
case $host_cpu in
hppa*64*|ia64*)
# +Z the default
;;
*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
;;
esac
;;
*)
;;
esac
;;
interix*)
# This is c89, which is MS Visual C++ (no shared libs)
# Anyone wants to do a port?
;;
irix5* | irix6* | nonstopux*)
case $cc_basename in
CC*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
# CC pic flag -KPIC is the default.
;;
*)
;;
esac
;;
linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
case $cc_basename in
KCC*)
# KAI C++ Compiler
_LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
ecpc* )
# old Intel C++ for x86_64, which still supported -KPIC.
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
;;
icpc* )
# Intel C++, used to be incompatible with GCC.
# ICC 10 doesn't accept -KPIC any more.
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
;;
pgCC* | pgcpp*)
# Portland Group C++ compiler
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
cxx*)
# Compaq C++
# Make sure the PIC flag is empty. It appears that all Alpha
# Linux and Compaq Tru64 Unix objects are PIC.
_LT_TAGVAR(lt_prog_compiler_pic, $1)=
_LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
;;
xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*)
# IBM XL 8.0, 9.0 on PPC and BlueGene
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
;;
*)
case `$CC -V 2>&1 | $SED 5q` in
*Sun\ C*)
# Sun C++ 5.9
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
;;
esac
;;
esac
;;
lynxos*)
;;
m88k*)
;;
mvs*)
case $cc_basename in
cxx*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
;;
*)
;;
esac
;;
netbsd*)
;;
*qnx* | *nto*)
# QNX uses GNU C++, but need to define -shared option too, otherwise
# it will coredump.
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
;;
osf3* | osf4* | osf5*)
case $cc_basename in
KCC*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
;;
RCC*)
# Rational C++ 2.4.1
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
;;
cxx*)
# Digital/Compaq C++
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
# Make sure the PIC flag is empty. It appears that all Alpha
# Linux and Compaq Tru64 Unix objects are PIC.
_LT_TAGVAR(lt_prog_compiler_pic, $1)=
_LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
;;
*)
;;
esac
;;
psos*)
;;
solaris*)
case $cc_basename in
CC* | sunCC*)
# Sun C++ 4.2, 5.x and Centerline C++
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
;;
gcx*)
# Green Hills C++ Compiler
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
;;
*)
;;
esac
;;
sunos4*)
case $cc_basename in
CC*)
# Sun C++ 4.x
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
lcc*)
# Lucid
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
;;
*)
;;
esac
;;
sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
case $cc_basename in
CC*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
esac
;;
tandem*)
case $cc_basename in
NCC*)
# NonStop-UX NCC 3.20
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
;;
*)
;;
esac
;;
vxworks*)
;;
*)
_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
;;
esac
fi
],
[
if test yes = "$GCC"; then
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
case $host_os in
aix*)
# All AIX code is PIC.
if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
fi
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
amigaos*)
case $host_cpu in
powerpc)
# see comment about AmigaOS4 .so support
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
m68k)
# FIXME: we need at least 68020 code to build shared libraries, but
# adding the '-m68020' flag to GCC prevents building anything better,
# like '-m68040'.
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
;;
esac
;;
beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
# PIC is the default for these OSes.
;;
mingw* | cygwin* | pw32* | os2* | cegcc*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
# Although the cygwin gcc ignores -fPIC, still need this for old-style
# (--disable-auto-import) libraries
m4_if([$1], [GCJ], [],
[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
case $host_os in
os2*)
_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
;;
esac
;;
darwin* | rhapsody*)
# PIC is the default on this platform
# Common symbols not allowed in MH_DYLIB files
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
;;
haiku*)
# PIC is the default for Haiku.
# The "-static" flag exists, but is broken.
_LT_TAGVAR(lt_prog_compiler_static, $1)=
;;
hpux*)
# PIC is the default for 64-bit PA HP-UX, but not for 32-bit
# PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
# sets the default TLS model and affects inlining.
case $host_cpu in
hppa*64*)
# +Z the default
;;
*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
esac
;;
interix[[3-9]]*)
# Interix 3.x gcc -fpic/-fPIC options generate broken code.
# Instead, we relocate shared libraries at runtime.
;;
msdosdjgpp*)
# Just because we use GCC doesn't mean we suddenly get shared libraries
# on systems that don't support them.
_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
enable_shared=no
;;
*nto* | *qnx*)
# QNX uses GNU C++, but need to define -shared option too, otherwise
# it will coredump.
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
;;
sysv4*MP*)
if test -d /usr/nec; then
_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
fi
;;
*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
esac
case $cc_basename in
nvcc*) # Cuda Compiler Driver 2.2
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker '
if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
_LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)"
fi
;;
esac
else
# PORTME Check for flag to pass linker flags through the system compiler.
case $host_os in
aix*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
else
_LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
fi
;;
darwin* | rhapsody*)
# PIC is the default on this platform
# Common symbols not allowed in MH_DYLIB files
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
case $cc_basename in
nagfor*)
# NAG Fortran compiler
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
esac
;;
mingw* | cygwin* | pw32* | os2* | cegcc*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
m4_if([$1], [GCJ], [],
[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
case $host_os in
os2*)
_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
;;
esac
;;
hpux9* | hpux10* | hpux11*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
# PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
# not for PA HP-UX.
case $host_cpu in
hppa*64*|ia64*)
# +Z the default
;;
*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
;;
esac
# Is there a better lt_prog_compiler_static that works with the bundled CC?
_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
;;
irix5* | irix6* | nonstopux*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
# PIC (with -KPIC) is the default.
_LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
;;
linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
case $cc_basename in
# old Intel for x86_64, which still supported -KPIC.
ecc*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
;;
# icc used to be incompatible with GCC.
# ICC 10 doesn't accept -KPIC any more.
icc* | ifort*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
;;
# Lahey Fortran 8.1.
lf95*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
_LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
;;
nagfor*)
# NAG Fortran compiler
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
tcc*)
# Fabrice Bellard et al's Tiny C Compiler
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
;;
pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
# Portland Group compilers (*not* the Pentium gcc compiler,
# which looks to be a dead project)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
ccc*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
# All Alpha code is PIC.
_LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
;;
xl* | bgxl* | bgf* | mpixl*)
# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
;;
*)
case `$CC -V 2>&1 | $SED 5q` in
*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*)
# Sun Fortran 8.3 passes all unrecognized flags to the linker
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
_LT_TAGVAR(lt_prog_compiler_wl, $1)=''
;;
*Sun\ F* | *Sun*Fortran*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
;;
*Sun\ C*)
# Sun C 5.9
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
;;
*Intel*\ [[CF]]*Compiler*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
;;
*Portland\ Group*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
esac
;;
esac
;;
newsos6)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
*nto* | *qnx*)
# QNX uses GNU C++, but need to define -shared option too, otherwise
# it will coredump.
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
;;
osf3* | osf4* | osf5*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
# All OSF/1 code is PIC.
_LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
;;
rdos*)
_LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
;;
solaris*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
case $cc_basename in
f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
esac
;;
sunos4*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
sysv4 | sysv4.2uw2* | sysv4.3*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
sysv4*MP*)
if test -d /usr/nec; then
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
fi
;;
sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
unicos*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
;;
uts4*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
*)
_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
;;
esac
fi
])
case $host_os in
# For platforms that do not support PIC, -DPIC is meaningless:
*djgpp*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)=
;;
*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
;;
esac
AC_CACHE_CHECK([for $compiler option to produce PIC],
[_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)],
[_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)
#
# Check to make sure the PIC flag actually works.
#
if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
_LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
[_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
[$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
[case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
"" | " "*) ;;
*) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
esac],
[_LT_TAGVAR(lt_prog_compiler_pic, $1)=
_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
fi
_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
[Additional compiler flags for building library objects])
_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
[How to pass a linker flag through the compiler])
#
# Check to make sure the static flag actually works.
#
wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
_LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
$lt_tmp_static_flag,
[],
[_LT_TAGVAR(lt_prog_compiler_static, $1)=])
_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
[Compiler flag to prevent dynamic linking])
])# _LT_COMPILER_PIC
# _LT_LINKER_SHLIBS([TAGNAME])
# ----------------------------
# See if the linker supports building shared libraries.
m4_defun([_LT_LINKER_SHLIBS],
[AC_REQUIRE([LT_PATH_LD])dnl
AC_REQUIRE([LT_PATH_NM])dnl
m4_require([_LT_PATH_MANIFEST_TOOL])dnl
m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_DECL_EGREP])dnl
m4_require([_LT_DECL_SED])dnl
m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
m4_require([_LT_TAG_COMPILER])dnl
AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
m4_if([$1], [CXX], [
_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
_LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
case $host_os in
aix[[4-9]]*)
# If we're using GNU nm, then we don't want the "-C" option.
# -C means demangle to GNU nm, but means don't demangle to AIX nm.
# Without the "-l" option, or with the "-B" option, AIX nm treats
# weak defined symbols like other global defined symbols, whereas
# GNU nm marks them as "W".
# While the 'weak' keyword is ignored in the Export File, we need
# it in the Import File for the 'aix-soname' feature, so we have
# to replace the "-B" option with "-P" for AIX nm.
if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
_LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
else
_LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
fi
;;
pw32*)
_LT_TAGVAR(export_symbols_cmds, $1)=$ltdll_cmds
;;
cygwin* | mingw* | cegcc*)
case $cc_basename in
cl* | icl*)
_LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
;;
*)
_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
_LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
;;
esac
;;
*)
_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
;;
esac
], [
runpath_var=
_LT_TAGVAR(allow_undefined_flag, $1)=
_LT_TAGVAR(always_export_symbols, $1)=no
_LT_TAGVAR(archive_cmds, $1)=
_LT_TAGVAR(archive_expsym_cmds, $1)=
_LT_TAGVAR(compiler_needs_object, $1)=no
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
_LT_TAGVAR(export_dynamic_flag_spec, $1)=
_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
_LT_TAGVAR(hardcode_automatic, $1)=no
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
_LT_TAGVAR(hardcode_libdir_separator, $1)=
_LT_TAGVAR(hardcode_minus_L, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
_LT_TAGVAR(inherit_rpath, $1)=no
_LT_TAGVAR(link_all_deplibs, $1)=unknown
_LT_TAGVAR(module_cmds, $1)=
_LT_TAGVAR(module_expsym_cmds, $1)=
_LT_TAGVAR(old_archive_from_new_cmds, $1)=
_LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
_LT_TAGVAR(thread_safe_flag_spec, $1)=
_LT_TAGVAR(whole_archive_flag_spec, $1)=
# include_expsyms should be a list of space-separated symbols to be *always*
# included in the symbol list
_LT_TAGVAR(include_expsyms, $1)=
# exclude_expsyms can be an extended regexp of symbols to exclude
# it will be wrapped by ' (' and ')$', so one must not match beginning or
# end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
# as well as any symbol that contains 'd'.
_LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
# Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
# platforms (ab)use it in PIC code, but their linkers get confused if
# the symbol is explicitly referenced. Since portable code cannot
# rely on this symbol name, it's probably fine to never include it in
# preloaded symbol tables.
# Exclude shared library initialization/finalization symbols.
dnl Note also adjust exclude_expsyms for C++ above.
extract_expsyms_cmds=
case $host_os in
cygwin* | mingw* | pw32* | cegcc*)
# FIXME: the MSVC++ and ICC port hasn't been tested in a loooong time
# When not using gcc, we currently assume that we are using
# Microsoft Visual C++ or Intel C++ Compiler.
if test yes != "$GCC"; then
with_gnu_ld=no
fi
;;
interix*)
# we just hope/assume this is gcc and not c89 (= MSVC++ or ICC)
with_gnu_ld=yes
;;
openbsd* | bitrig*)
with_gnu_ld=no
;;
esac
_LT_TAGVAR(ld_shlibs, $1)=yes
# On some targets, GNU ld is compatible enough with the native linker
# that we're better off using the native interface for both.
lt_use_gnu_ld_interface=no
if test yes = "$with_gnu_ld"; then
case $host_os in
aix*)
# The AIX port of GNU ld has always aspired to compatibility
# with the native linker. However, as the warning in the GNU ld
# block says, versions before 2.19.5* couldn't really create working
# shared libraries, regardless of the interface used.
case `$LD -v 2>&1` in
*\ \(GNU\ Binutils\)\ 2.19.5*) ;;
*\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;;
*\ \(GNU\ Binutils\)\ [[3-9]]*) ;;
*)
lt_use_gnu_ld_interface=yes
;;
esac
;;
*)
lt_use_gnu_ld_interface=yes
;;
esac
fi
if test yes = "$lt_use_gnu_ld_interface"; then
# If archive_cmds runs LD, not CC, wlarc should be empty
wlarc='$wl'
# Set some defaults for GNU ld with shared library support. These
# are reset later if shared libraries are not supported. Putting them
# here allows them to be overridden if necessary.
runpath_var=LD_RUN_PATH
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
# ancient GNU ld didn't support --whole-archive et. al.
if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
_LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
else
_LT_TAGVAR(whole_archive_flag_spec, $1)=
fi
supports_anon_versioning=no
case `$LD -v | $SED -e 's/([[^)]]\+)\s\+//' 2>&1` in
*GNU\ gold*) supports_anon_versioning=yes ;;
*\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
*\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
*\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
*\ 2.11.*) ;; # other 2.11 versions
*) supports_anon_versioning=yes ;;
esac
# See if GNU ld supports shared libraries.
case $host_os in
aix[[3-9]]*)
# On AIX/PPC, the GNU linker is very broken
if test ia64 != "$host_cpu"; then
_LT_TAGVAR(ld_shlibs, $1)=no
cat <<_LT_EOF 1>&2
*** Warning: the GNU linker, at least up to release 2.19, is reported
*** to be unable to reliably create shared libraries on AIX.
*** Therefore, libtool is disabling shared libraries support. If you
*** really care for shared libraries, you may want to install binutils
*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
*** You will then need to restart the configuration process.
_LT_EOF
fi
;;
amigaos*)
case $host_cpu in
powerpc)
# see comment about AmigaOS4 .so support
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)=''
;;
m68k)
_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_minus_L, $1)=yes
;;
esac
;;
beos*)
if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
# Joseph Beckenbach says some releases of gcc
# support --undefined. This deserves some investigation. FIXME
_LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
cygwin* | mingw* | pw32* | cegcc*)
# _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
# as there is no search path for DLLs.
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
_LT_TAGVAR(always_export_symbols, $1)=no
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
_LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
# If the export-symbols file already is a .def file, use it as
# is; otherwise, prepend EXPORTS...
_LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
cp $export_symbols $output_objdir/$soname.def;
else
echo EXPORTS > $output_objdir/$soname.def;
cat $export_symbols >> $output_objdir/$soname.def;
fi~
$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
haiku*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(link_all_deplibs, $1)=yes
;;
os2*)
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_minus_L, $1)=yes
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
shrext_cmds=.dll
_LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
$ECHO EXPORTS >> $output_objdir/$libname.def~
emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
emximp -o $lib $output_objdir/$libname.def'
_LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
$ECHO EXPORTS >> $output_objdir/$libname.def~
prefix_cmds="$SED"~
if test EXPORTS = "`$SED 1q $export_symbols`"; then
prefix_cmds="$prefix_cmds -e 1d";
fi~
prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
emximp -o $lib $output_objdir/$libname.def'
_LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
_LT_TAGVAR(file_list_spec, $1)='@'
;;
interix[[3-9]]*)
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
# Instead, shared libraries are loaded at an image base (0x10000000 by
# default) and relocated if they conflict, which is a slow very memory
# consuming and fragmenting process. To avoid this, we pick a random,
# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
# time. Moving up from 0x10000000 also allows more sbrk(2) space.
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$SED "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
;;
gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
tmp_diet=no
if test linux-dietlibc = "$host_os"; then
case $cc_basename in
diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
esac
fi
if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
&& test no = "$tmp_diet"
then
tmp_addflag=' $pic_flag'
tmp_sharedflag='-shared'
case $cc_basename,$host_cpu in
pgcc*) # Portland Group C compiler
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
tmp_addflag=' $pic_flag'
;;
pgf77* | pgf90* | pgf95* | pgfortran*)
# Portland Group f77 and f90 compilers
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
tmp_addflag=' $pic_flag -Mnomain' ;;
ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
tmp_addflag=' -i_dynamic' ;;
efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64
tmp_addflag=' -i_dynamic -nofor_main' ;;
ifc* | ifort*) # Intel Fortran compiler
tmp_addflag=' -nofor_main' ;;
lf95*) # Lahey Fortran 8.1
_LT_TAGVAR(whole_archive_flag_spec, $1)=
tmp_sharedflag='--shared' ;;
nagfor*) # NAGFOR 5.3
tmp_sharedflag='-Wl,-shared' ;;
xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
tmp_sharedflag='-qmkshrobj'
tmp_addflag= ;;
nvcc*) # Cuda Compiler Driver 2.2
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
_LT_TAGVAR(compiler_needs_object, $1)=yes
;;
esac
case `$CC -V 2>&1 | $SED 5q` in
*Sun\ C*) # Sun C 5.9
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
_LT_TAGVAR(compiler_needs_object, $1)=yes
tmp_sharedflag='-G' ;;
*Sun\ F*) # Sun Fortran 8.3
tmp_sharedflag='-G' ;;
esac
_LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
if test yes = "$supports_anon_versioning"; then
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
echo "local: *; };" >> $output_objdir/$libname.ver~
$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
fi
case $cc_basename in
tcc*)
_LT_TAGVAR(export_dynamic_flag_spec, $1)='-rdynamic'
;;
xlf* | bgf* | bgxlf* | mpixlf*)
# IBM XL Fortran 10.1 on PPC cannot create shared libs itself
_LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
if test yes = "$supports_anon_versioning"; then
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
echo "local: *; };" >> $output_objdir/$libname.ver~
$LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
fi
;;
esac
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
netbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
wlarc=
else
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
fi
;;
solaris*)
if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
_LT_TAGVAR(ld_shlibs, $1)=no
cat <<_LT_EOF 1>&2
*** Warning: The releases 2.8.* of the GNU linker cannot reliably
*** create shared libraries on Solaris systems. Therefore, libtool
*** is disabling shared libraries support. We urge you to upgrade GNU
*** binutils to release 2.9.1 or newer. Another option is to modify
*** your PATH or compiler configuration so that the native linker is
*** used, and then restart.
_LT_EOF
elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
case `$LD -v 2>&1` in
*\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
_LT_TAGVAR(ld_shlibs, $1)=no
cat <<_LT_EOF 1>&2
*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
*** reliably create shared libraries on SCO systems. Therefore, libtool
*** is disabling shared libraries support. We urge you to upgrade GNU
*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
*** your PATH or compiler configuration so that the native linker is
*** used, and then restart.
_LT_EOF
;;
*)
# For security reasons, it is highly recommended that you always
# use absolute paths for naming shared libraries, and exclude the
# DT_RUNPATH tag from executables and libraries. But doing so
# requires that you compile everything twice, which is a pain.
if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
esac
;;
sunos4*)
_LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
wlarc=
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
*)
if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
esac
if test no = "$_LT_TAGVAR(ld_shlibs, $1)"; then
runpath_var=
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
_LT_TAGVAR(export_dynamic_flag_spec, $1)=
_LT_TAGVAR(whole_archive_flag_spec, $1)=
fi
else
# PORTME fill in a description of your system's linker (not GNU ld)
case $host_os in
aix3*)
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
_LT_TAGVAR(always_export_symbols, $1)=yes
_LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
# Note: this linker hardcodes the directories in LIBPATH if there
# are no directories specified by -L.
_LT_TAGVAR(hardcode_minus_L, $1)=yes
if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
# Neither direct hardcoding nor static linking is supported with a
# broken collect2.
_LT_TAGVAR(hardcode_direct, $1)=unsupported
fi
;;
aix[[4-9]]*)
if test ia64 = "$host_cpu"; then
# On IA64, the linker does run time linking by default, so we don't
# have to do anything special.
aix_use_runtimelinking=no
exp_sym_flag='-Bexport'
no_entry_flag=
else
# If we're using GNU nm, then we don't want the "-C" option.
# -C means demangle to GNU nm, but means don't demangle to AIX nm.
# Without the "-l" option, or with the "-B" option, AIX nm treats
# weak defined symbols like other global defined symbols, whereas
# GNU nm marks them as "W".
# While the 'weak' keyword is ignored in the Export File, we need
# it in the Import File for the 'aix-soname' feature, so we have
# to replace the "-B" option with "-P" for AIX nm.
if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
_LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
else
_LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
fi
aix_use_runtimelinking=no
# Test if we are trying to use run time linking or normal
# AIX style linking. If -brtl is somewhere in LDFLAGS, we
# have runtime linking enabled, and use it for executables.
# For shared libraries, we enable/disable runtime linking
# depending on the kind of the shared library created -
# when "with_aix_soname,aix_use_runtimelinking" is:
# "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
# "aix,yes" lib.so shared, rtl:yes, for executables
# lib.a static archive
# "both,no" lib.so.V(shr.o) shared, rtl:yes
# lib.a(lib.so.V) shared, rtl:no, for executables
# "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
# lib.a(lib.so.V) shared, rtl:no
# "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
# lib.a static archive
case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
for ld_flag in $LDFLAGS; do
if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
aix_use_runtimelinking=yes
break
fi
done
if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
# With aix-soname=svr4, we create the lib.so.V shared archives only,
# so we don't have lib.a shared libs to link our executables.
# We have to force runtime linking in this case.
aix_use_runtimelinking=yes
LDFLAGS="$LDFLAGS -Wl,-brtl"
fi
;;
esac
exp_sym_flag='-bexport'
no_entry_flag='-bnoentry'
fi
# When large executables or shared objects are built, AIX ld can
# have problems creating the table of contents. If linking a library
# or program results in "error TOC overflow" add -mminimal-toc to
# CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
# enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
_LT_TAGVAR(archive_cmds, $1)=''
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
_LT_TAGVAR(link_all_deplibs, $1)=yes
_LT_TAGVAR(file_list_spec, $1)='$wl-f,'
case $with_aix_soname,$aix_use_runtimelinking in
aix,*) ;; # traditional, no import file
svr4,* | *,yes) # use import file
# The Import File defines what to hardcode.
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=no
;;
esac
if test yes = "$GCC"; then
case $host_os in aix4.[[012]]|aix4.[[012]].*)
# We only want to do this on AIX 4.2 and lower, the check
# below for broken collect2 doesn't work under 4.3+
collect2name=`$CC -print-prog-name=collect2`
if test -f "$collect2name" &&
strings "$collect2name" | $GREP resolve_lib_name >/dev/null
then
# We have reworked collect2
:
else
# We have old collect2
_LT_TAGVAR(hardcode_direct, $1)=unsupported
# It fails to find uninstalled libraries when the uninstalled
# path is not listed in the libpath. Setting hardcode_minus_L
# to unsupported forces relinking
_LT_TAGVAR(hardcode_minus_L, $1)=yes
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=
fi
;;
esac
shared_flag='-shared'
if test yes = "$aix_use_runtimelinking"; then
shared_flag="$shared_flag "'$wl-G'
fi
# Need to ensure runtime linking is disabled for the traditional
# shared library, or the linker may eventually find shared libraries
# /with/ Import File - we do not want to mix them.
shared_flag_aix='-shared'
shared_flag_svr4='-shared $wl-G'
else
# not using gcc
if test ia64 = "$host_cpu"; then
# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
# chokes on -Wl,-G. The following line is correct:
shared_flag='-G'
else
if test yes = "$aix_use_runtimelinking"; then
shared_flag='$wl-G'
else
shared_flag='$wl-bM:SRE'
fi
shared_flag_aix='$wl-bM:SRE'
shared_flag_svr4='$wl-G'
fi
fi
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
# It seems that -bexpall does not export symbols beginning with
# underscore (_), so it is better to generate a list of symbols to export.
_LT_TAGVAR(always_export_symbols, $1)=yes
if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
# Warning - without using the other runtime loading flags (-brtl),
# -berok will link without error, but may produce a broken library.
_LT_TAGVAR(allow_undefined_flag, $1)='-berok'
# Determine the default libpath from the value encoded in an
# empty executable.
_LT_SYS_MODULE_PATH_AIX([$1])
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
else
if test ia64 = "$host_cpu"; then
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
_LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
_LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
else
# Determine the default libpath from the value encoded in an
# empty executable.
_LT_SYS_MODULE_PATH_AIX([$1])
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
# Warning - without using the other run time loading flags,
# -berok will link without error, but may produce a broken library.
_LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
if test yes = "$with_gnu_ld"; then
# We only use this code for GNU lds that support --whole-archive.
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
else
# Exported symbols can be pulled into shared objects from archives
_LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
_LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
# -brtl affects multiple linker settings, -berok does not and is overridden later
compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
if test svr4 != "$with_aix_soname"; then
# This is similar to how AIX traditionally builds its shared libraries.
_LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
fi
if test aix != "$with_aix_soname"; then
_LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
else
# used by -dlpreopen to get the symbols
_LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
fi
_LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
fi
fi
;;
amigaos*)
case $host_cpu in
powerpc)
# see comment about AmigaOS4 .so support
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)=''
;;
m68k)
_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_minus_L, $1)=yes
;;
esac
;;
bsdi[[45]]*)
_LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
;;
cygwin* | mingw* | pw32* | cegcc*)
# When not using gcc, we currently assume that we are using
# Microsoft Visual C++ or Intel C++ Compiler.
# hardcode_libdir_flag_spec is actually meaningless, as there is
# no search path for DLLs.
case $cc_basename in
cl* | icl*)
# Native MSVC or ICC
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
_LT_TAGVAR(always_export_symbols, $1)=yes
_LT_TAGVAR(file_list_spec, $1)='@'
# Tell ltmain to make .lib files, not .a files.
libext=lib
# Tell ltmain to make .dll files, not .so files.
shrext_cmds=.dll
# FIXME: Setting linknames here is a bad hack.
_LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
_LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
cp "$export_symbols" "$output_objdir/$soname.def";
echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
else
$SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
fi~
$CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
linknames='
# The linker will not automatically build a static lib if we build a DLL.
# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
_LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
# Don't use ranlib
_LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
_LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
lt_tool_outputfile="@TOOL_OUTPUT@"~
case $lt_outputfile in
*.exe|*.EXE) ;;
*)
lt_outputfile=$lt_outputfile.exe
lt_tool_outputfile=$lt_tool_outputfile.exe
;;
esac~
if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
$MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
$RM "$lt_outputfile.manifest";
fi'
;;
*)
# Assume MSVC and ICC wrapper
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
# Tell ltmain to make .lib files, not .a files.
libext=lib
# Tell ltmain to make .dll files, not .so files.
shrext_cmds=.dll
# FIXME: Setting linknames here is a bad hack.
_LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
# The linker will automatically build a .lib file if we build a DLL.
_LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
# FIXME: Should let the user specify the lib program.
_LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
;;
esac
;;
darwin* | rhapsody*)
_LT_DARWIN_LINKER_FEATURES($1)
;;
dgux*)
_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
# FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
# support. Future versions do this automatically, but an explicit c++rt0.o
# does not break anything, and helps significantly (at the cost of a little
# extra space).
freebsd2.2*)
_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
# Unfortunately, older versions of FreeBSD 2 do not have this feature.
freebsd2.*)
_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_minus_L, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
# FreeBSD 3 and greater uses gcc -shared to do shared libraries.
freebsd* | dragonfly* | midnightbsd*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
hpux9*)
if test yes = "$GCC"; then
_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
else
_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
fi
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(hardcode_direct, $1)=yes
# hardcode_minus_L: Not really in the search PATH,
# but as the default location of the library.
_LT_TAGVAR(hardcode_minus_L, $1)=yes
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
;;
hpux10*)
if test yes,no = "$GCC,$with_gnu_ld"; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
else
_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
fi
if test no = "$with_gnu_ld"; then
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
# hardcode_minus_L: Not really in the search PATH,
# but as the default location of the library.
_LT_TAGVAR(hardcode_minus_L, $1)=yes
fi
;;
hpux11*)
if test yes,no = "$GCC,$with_gnu_ld"; then
case $host_cpu in
hppa*64*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
ia64*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
;;
*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
;;
esac
else
case $host_cpu in
hppa*64*)
_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
ia64*)
_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
;;
*)
m4_if($1, [], [
# Older versions of the 11.00 compiler do not understand -b yet
# (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
_LT_LINKER_OPTION([if $CC understands -b],
_LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b],
[_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'],
[_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])],
[_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'])
;;
esac
fi
if test no = "$with_gnu_ld"; then
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
case $host_cpu in
hppa*64*|ia64*)
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
*)
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
# hardcode_minus_L: Not really in the search PATH,
# but as the default location of the library.
_LT_TAGVAR(hardcode_minus_L, $1)=yes
;;
esac
fi
;;
irix5* | irix6* | nonstopux*)
if test yes = "$GCC"; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
# Try to use the -exported_symbol ld option, if it does not
# work, assume that -exports_file does not work either and
# implicitly export all symbols.
# This should be the same for all languages, so no per-tag cache variable.
AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol],
[lt_cv_irix_exported_symbol],
[save_LDFLAGS=$LDFLAGS
LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
AC_LINK_IFELSE(
[AC_LANG_SOURCE(
[AC_LANG_CASE([C], [[int foo (void) { return 0; }]],
[C++], [[int foo (void) { return 0; }]],
[Fortran 77], [[
subroutine foo
end]],
[Fortran], [[
subroutine foo
end]])])],
[lt_cv_irix_exported_symbol=yes],
[lt_cv_irix_exported_symbol=no])
LDFLAGS=$save_LDFLAGS])
if test yes = "$lt_cv_irix_exported_symbol"; then
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
fi
else
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)='no'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(inherit_rpath, $1)=yes
_LT_TAGVAR(link_all_deplibs, $1)=yes
;;
linux*)
case $cc_basename in
tcc*)
# Fabrice Bellard et al's Tiny C Compiler
_LT_TAGVAR(ld_shlibs, $1)=yes
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
;;
esac
;;
netbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
else
_LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF
fi
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
newsos6)
_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
*nto* | *qnx*)
;;
openbsd* | bitrig*)
if test -f /usr/libexec/ld.so; then
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
else
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
fi
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
os2*)
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_minus_L, $1)=yes
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
shrext_cmds=.dll
_LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
$ECHO EXPORTS >> $output_objdir/$libname.def~
emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
emximp -o $lib $output_objdir/$libname.def'
_LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
$ECHO EXPORTS >> $output_objdir/$libname.def~
prefix_cmds="$SED"~
if test EXPORTS = "`$SED 1q $export_symbols`"; then
prefix_cmds="$prefix_cmds -e 1d";
fi~
prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
emximp -o $lib $output_objdir/$libname.def'
_LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
_LT_TAGVAR(file_list_spec, $1)='@'
;;
osf3*)
if test yes = "$GCC"; then
_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
else
_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)='no'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
;;
osf4* | osf5*) # as osf3* with the addition of -msym flag
if test yes = "$GCC"; then
_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
else
_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
$CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
# Both c and cxx compiler support -rpath directly
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)='no'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
;;
solaris*)
_LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
if test yes = "$GCC"; then
wlarc='$wl'
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
$CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
else
case `$CC -V 2>&1` in
*"Compilers 5.0"*)
wlarc=''
_LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
$LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
;;
*)
wlarc='$wl'
_LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
$CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
;;
esac
fi
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
case $host_os in
solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
*)
# The compiler driver will combine and reorder linker options,
# but understands '-z linker_flag'. GCC discards it without '$wl',
# but is careful enough not to reorder.
# Supported since Solaris 2.6 (maybe 2.5.1?)
if test yes = "$GCC"; then
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
else
_LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
fi
;;
esac
_LT_TAGVAR(link_all_deplibs, $1)=yes
;;
sunos4*)
if test sequent = "$host_vendor"; then
# Use $CC to link under sequent, because it throws in some extra .o
# files that make .init and .fini sections work.
_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
else
_LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
fi
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_minus_L, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
sysv4)
case $host_vendor in
sni)
_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
;;
siemens)
## LD is ld it makes a PLAMLIB
## CC just makes a GrossModule.
_LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
_LT_TAGVAR(hardcode_direct, $1)=no
;;
motorola)
_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
;;
esac
runpath_var='LD_RUN_PATH'
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
sysv4.3*)
_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
_LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
;;
sysv4*MP*)
if test -d /usr/nec; then
_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
runpath_var=LD_RUN_PATH
hardcode_runpath_var=yes
_LT_TAGVAR(ld_shlibs, $1)=yes
fi
;;
sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
_LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
runpath_var='LD_RUN_PATH'
if test yes = "$GCC"; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
else
_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
fi
;;
sysv5* | sco3.2v5* | sco5v6*)
# Note: We CANNOT use -z defs as we might desire, because we do not
# link with -lc, and that would cause any symbols used from libc to
# always be unresolved, which means just about no library would
# ever link correctly. If we're not using GNU ld we use -z text
# though, which does catch some bad symbols but isn't as heavy-handed
# as -z defs.
_LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
_LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
_LT_TAGVAR(link_all_deplibs, $1)=yes
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
runpath_var='LD_RUN_PATH'
if test yes = "$GCC"; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
else
_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
fi
;;
uts4*)
_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
*)
_LT_TAGVAR(ld_shlibs, $1)=no
;;
esac
if test sni = "$host_vendor"; then
case $host in
sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Blargedynsym'
;;
esac
fi
fi
])
AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
_LT_DECL([], [extract_expsyms_cmds], [2],
[The commands to extract the exported symbol list from a shared archive])
#
# Do we need to explicitly link libc?
#
case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
x|xyes)
# Assume -lc should be added
_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
if test yes,yes = "$GCC,$enable_shared"; then
case $_LT_TAGVAR(archive_cmds, $1) in
*'~'*)
# FIXME: we may have to deal with multi-command sequences.
;;
'$CC '*)
# Test whether the compiler implicitly links with -lc since on some
# systems, -lgcc has to come before -lc. If gcc already passes -lc
# to ld, don't add -lc before -lgcc.
AC_CACHE_CHECK([whether -lc should be explicitly linked in],
[lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1),
[$RM conftest*
echo "$lt_simple_compile_test_code" > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
soname=conftest
lib=conftest
libobjs=conftest.$ac_objext
deplibs=
wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
compiler_flags=-v
linker_flags=-v
verstring=
output_objdir=.
libname=conftest
lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
_LT_TAGVAR(allow_undefined_flag, $1)=
if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
then
lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no
else
lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
fi
_LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
else
cat conftest.err 1>&5
fi
$RM conftest*
])
_LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)
;;
esac
fi
;;
esac
_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
[Whether or not to add -lc for building shared libraries])
_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
[enable_shared_with_static_runtimes], [0],
[Whether or not to disallow shared libs when runtime libs are static])
_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
[Compiler flag to allow reflexive dlopens])
_LT_TAGDECL([], [whole_archive_flag_spec], [1],
[Compiler flag to generate shared objects directly from archives])
_LT_TAGDECL([], [compiler_needs_object], [1],
[Whether the compiler copes with passing no objects directly])
_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
[Create an old-style archive from a shared archive])
_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
[Create a temporary old-style archive to link instead of a shared archive])
_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
_LT_TAGDECL([], [archive_expsym_cmds], [2])
_LT_TAGDECL([], [module_cmds], [2],
[Commands used to build a loadable module if different from building
a shared archive.])
_LT_TAGDECL([], [module_expsym_cmds], [2])
_LT_TAGDECL([], [with_gnu_ld], [1],
[Whether we are building with GNU ld or not])
_LT_TAGDECL([], [allow_undefined_flag], [1],
[Flag that allows shared libraries with undefined symbols to be built])
_LT_TAGDECL([], [no_undefined_flag], [1],
[Flag that enforces no undefined symbols])
_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
[Flag to hardcode $libdir into a binary during linking.
This must work even if $libdir does not exist])
_LT_TAGDECL([], [hardcode_libdir_separator], [1],
[Whether we need a single "-rpath" flag with a separated argument])
_LT_TAGDECL([], [hardcode_direct], [0],
[Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
DIR into the resulting binary])
_LT_TAGDECL([], [hardcode_direct_absolute], [0],
[Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
DIR into the resulting binary and the resulting library dependency is
"absolute", i.e impossible to change by setting $shlibpath_var if the
library is relocated])
_LT_TAGDECL([], [hardcode_minus_L], [0],
[Set to "yes" if using the -LDIR flag during linking hardcodes DIR
into the resulting binary])
_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
[Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
into the resulting binary])
_LT_TAGDECL([], [hardcode_automatic], [0],
[Set to "yes" if building a shared library automatically hardcodes DIR
into the library and all subsequent libraries and executables linked
against it])
_LT_TAGDECL([], [inherit_rpath], [0],
[Set to yes if linker adds runtime paths of dependent libraries
to runtime path list])
_LT_TAGDECL([], [link_all_deplibs], [0],
[Whether libtool must link a program against all its dependency libraries])
_LT_TAGDECL([], [always_export_symbols], [0],
[Set to "yes" if exported symbols are required])
_LT_TAGDECL([], [export_symbols_cmds], [2],
[The commands to list exported symbols])
_LT_TAGDECL([], [exclude_expsyms], [1],
[Symbols that should not be listed in the preloaded symbols])
_LT_TAGDECL([], [include_expsyms], [1],
[Symbols that must always be exported])
_LT_TAGDECL([], [prelink_cmds], [2],
[Commands necessary for linking programs (against libraries) with templates])
_LT_TAGDECL([], [postlink_cmds], [2],
[Commands necessary for finishing linking programs])
_LT_TAGDECL([], [file_list_spec], [1],
[Specify filename containing input files])
dnl FIXME: Not yet implemented
dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
dnl [Compiler flag to generate thread safe objects])
])# _LT_LINKER_SHLIBS
# _LT_LANG_C_CONFIG([TAG])
# ------------------------
# Ensure that the configuration variables for a C compiler are suitably
# defined. These variables are subsequently used by _LT_CONFIG to write
# the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_C_CONFIG],
[m4_require([_LT_DECL_EGREP])dnl
lt_save_CC=$CC
AC_LANG_PUSH(C)
# Source file extension for C test sources.
ac_ext=c
# Object file extension for compiled C test sources.
objext=o
_LT_TAGVAR(objext, $1)=$objext
# Code to be used in simple compile tests
lt_simple_compile_test_code="int some_variable = 0;"
# Code to be used in simple link tests
lt_simple_link_test_code='int main(){return(0);}'
_LT_TAG_COMPILER
# Save the default compiler, since it gets overwritten when the other
# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
compiler_DEFAULT=$CC
# save warnings/boilerplate of simple test code
_LT_COMPILER_BOILERPLATE
_LT_LINKER_BOILERPLATE
## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
## the running order or otherwise move them around unless you know exactly
## what you are doing...
if test -n "$compiler"; then
_LT_COMPILER_NO_RTTI($1)
_LT_COMPILER_PIC($1)
_LT_COMPILER_C_O($1)
_LT_COMPILER_FILE_LOCKS($1)
_LT_LINKER_SHLIBS($1)
_LT_SYS_DYNAMIC_LINKER($1)
_LT_LINKER_HARDCODE_LIBPATH($1)
LT_SYS_DLOPEN_SELF
_LT_CMD_STRIPLIB
# Report what library types will actually be built
AC_MSG_CHECKING([if libtool supports shared libraries])
AC_MSG_RESULT([$can_build_shared])
AC_MSG_CHECKING([whether to build shared libraries])
test no = "$can_build_shared" && enable_shared=no
# On AIX, shared libraries and static libraries use the same namespace, and
# are all built from PIC.
case $host_os in
aix3*)
test yes = "$enable_shared" && enable_static=no
if test -n "$RANLIB"; then
archive_cmds="$archive_cmds~\$RANLIB \$lib"
postinstall_cmds='$RANLIB $lib'
fi
;;
aix[[4-9]]*)
if test ia64 != "$host_cpu"; then
case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
yes,aix,yes) ;; # shared object as lib.so file only
yes,svr4,*) ;; # shared object as lib.so archive member only
yes,*) enable_static=no ;; # shared object in lib.a archive as well
esac
fi
;;
esac
AC_MSG_RESULT([$enable_shared])
AC_MSG_CHECKING([whether to build static libraries])
# Make sure either enable_shared or enable_static is yes.
test yes = "$enable_shared" || enable_static=yes
AC_MSG_RESULT([$enable_static])
_LT_CONFIG($1)
fi
AC_LANG_POP
CC=$lt_save_CC
])# _LT_LANG_C_CONFIG
# _LT_LANG_CXX_CONFIG([TAG])
# --------------------------
# Ensure that the configuration variables for a C++ compiler are suitably
# defined. These variables are subsequently used by _LT_CONFIG to write
# the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_CXX_CONFIG],
[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_DECL_EGREP])dnl
m4_require([_LT_PATH_MANIFEST_TOOL])dnl
if test -n "$CXX" && ( test no != "$CXX" &&
( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) ||
(test g++ != "$CXX"))); then
AC_PROG_CXXCPP
else
_lt_caught_CXX_error=yes
fi
AC_LANG_PUSH(C++)
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(allow_undefined_flag, $1)=
_LT_TAGVAR(always_export_symbols, $1)=no
_LT_TAGVAR(archive_expsym_cmds, $1)=
_LT_TAGVAR(compiler_needs_object, $1)=no
_LT_TAGVAR(export_dynamic_flag_spec, $1)=
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
_LT_TAGVAR(hardcode_libdir_separator, $1)=
_LT_TAGVAR(hardcode_minus_L, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
_LT_TAGVAR(hardcode_automatic, $1)=no
_LT_TAGVAR(inherit_rpath, $1)=no
_LT_TAGVAR(module_cmds, $1)=
_LT_TAGVAR(module_expsym_cmds, $1)=
_LT_TAGVAR(link_all_deplibs, $1)=unknown
_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
_LT_TAGVAR(reload_flag, $1)=$reload_flag
_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
_LT_TAGVAR(no_undefined_flag, $1)=
_LT_TAGVAR(whole_archive_flag_spec, $1)=
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
# Source file extension for C++ test sources.
ac_ext=cpp
# Object file extension for compiled C++ test sources.
objext=o
_LT_TAGVAR(objext, $1)=$objext
# No sense in running all these tests if we already determined that
# the CXX compiler isn't working. Some variables (like enable_shared)
# are currently assumed to apply to all compilers on this platform,
# and will be corrupted by setting them based on a non-working compiler.
if test yes != "$_lt_caught_CXX_error"; then
# Code to be used in simple compile tests
lt_simple_compile_test_code="int some_variable = 0;"
# Code to be used in simple link tests
lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
_LT_TAG_COMPILER
# save warnings/boilerplate of simple test code
_LT_COMPILER_BOILERPLATE
_LT_LINKER_BOILERPLATE
# Allow CC to be a program name with arguments.
lt_save_CC=$CC
lt_save_CFLAGS=$CFLAGS
lt_save_LD=$LD
lt_save_GCC=$GCC
GCC=$GXX
lt_save_with_gnu_ld=$with_gnu_ld
lt_save_path_LD=$lt_cv_path_LD
if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
else
$as_unset lt_cv_prog_gnu_ld
fi
if test -n "${lt_cv_path_LDCXX+set}"; then
lt_cv_path_LD=$lt_cv_path_LDCXX
else
$as_unset lt_cv_path_LD
fi
test -z "${LDCXX+set}" || LD=$LDCXX
CC=${CXX-"c++"}
CFLAGS=$CXXFLAGS
compiler=$CC
_LT_TAGVAR(compiler, $1)=$CC
_LT_CC_BASENAME([$compiler])
if test -n "$compiler"; then
# We don't want -fno-exception when compiling C++ code, so set the
# no_builtin_flag separately
if test yes = "$GXX"; then
_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
else
_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
fi
if test yes = "$GXX"; then
# Set up default GNU C++ configuration
LT_PATH_LD
# Check if GNU C++ uses GNU ld as the underlying linker, since the
# archiving commands below assume that GNU ld is being used.
if test yes = "$with_gnu_ld"; then
_LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
# If archive_cmds runs LD, not CC, wlarc should be empty
# XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
# investigate it a little bit more. (MM)
wlarc='$wl'
# ancient GNU ld didn't support --whole-archive et. al.
if eval "`$CC -print-prog-name=ld` --help 2>&1" |
$GREP 'no-whole-archive' > /dev/null; then
_LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
else
_LT_TAGVAR(whole_archive_flag_spec, $1)=
fi
else
with_gnu_ld=no
wlarc=
# A generic and very simple default shared library creation
# command for GNU C++ for the case where it uses the native
# linker, instead of GNU ld. If possible, this setting should
# overridden to take advantage of the native linker features on
# the platform it is being used on.
_LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
fi
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
else
GXX=no
with_gnu_ld=no
wlarc=
fi
# PORTME: fill in a description of your system's C++ link characteristics
AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
_LT_TAGVAR(ld_shlibs, $1)=yes
case $host_os in
aix3*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
aix[[4-9]]*)
if test ia64 = "$host_cpu"; then
# On IA64, the linker does run time linking by default, so we don't
# have to do anything special.
aix_use_runtimelinking=no
exp_sym_flag='-Bexport'
no_entry_flag=
else
aix_use_runtimelinking=no
# Test if we are trying to use run time linking or normal
# AIX style linking. If -brtl is somewhere in LDFLAGS, we
# have runtime linking enabled, and use it for executables.
# For shared libraries, we enable/disable runtime linking
# depending on the kind of the shared library created -
# when "with_aix_soname,aix_use_runtimelinking" is:
# "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
# "aix,yes" lib.so shared, rtl:yes, for executables
# lib.a static archive
# "both,no" lib.so.V(shr.o) shared, rtl:yes
# lib.a(lib.so.V) shared, rtl:no, for executables
# "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
# lib.a(lib.so.V) shared, rtl:no
# "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
# lib.a static archive
case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
for ld_flag in $LDFLAGS; do
case $ld_flag in
*-brtl*)
aix_use_runtimelinking=yes
break
;;
esac
done
if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
# With aix-soname=svr4, we create the lib.so.V shared archives only,
# so we don't have lib.a shared libs to link our executables.
# We have to force runtime linking in this case.
aix_use_runtimelinking=yes
LDFLAGS="$LDFLAGS -Wl,-brtl"
fi
;;
esac
exp_sym_flag='-bexport'
no_entry_flag='-bnoentry'
fi
# When large executables or shared objects are built, AIX ld can
# have problems creating the table of contents. If linking a library
# or program results in "error TOC overflow" add -mminimal-toc to
# CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
# enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
_LT_TAGVAR(archive_cmds, $1)=''
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
_LT_TAGVAR(link_all_deplibs, $1)=yes
_LT_TAGVAR(file_list_spec, $1)='$wl-f,'
case $with_aix_soname,$aix_use_runtimelinking in
aix,*) ;; # no import file
svr4,* | *,yes) # use import file
# The Import File defines what to hardcode.
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=no
;;
esac
if test yes = "$GXX"; then
case $host_os in aix4.[[012]]|aix4.[[012]].*)
# We only want to do this on AIX 4.2 and lower, the check
# below for broken collect2 doesn't work under 4.3+
collect2name=`$CC -print-prog-name=collect2`
if test -f "$collect2name" &&
strings "$collect2name" | $GREP resolve_lib_name >/dev/null
then
# We have reworked collect2
:
else
# We have old collect2
_LT_TAGVAR(hardcode_direct, $1)=unsupported
# It fails to find uninstalled libraries when the uninstalled
# path is not listed in the libpath. Setting hardcode_minus_L
# to unsupported forces relinking
_LT_TAGVAR(hardcode_minus_L, $1)=yes
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=
fi
esac
shared_flag='-shared'
if test yes = "$aix_use_runtimelinking"; then
shared_flag=$shared_flag' $wl-G'
fi
# Need to ensure runtime linking is disabled for the traditional
# shared library, or the linker may eventually find shared libraries
# /with/ Import File - we do not want to mix them.
shared_flag_aix='-shared'
shared_flag_svr4='-shared $wl-G'
else
# not using gcc
if test ia64 = "$host_cpu"; then
# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
# chokes on -Wl,-G. The following line is correct:
shared_flag='-G'
else
if test yes = "$aix_use_runtimelinking"; then
shared_flag='$wl-G'
else
shared_flag='$wl-bM:SRE'
fi
shared_flag_aix='$wl-bM:SRE'
shared_flag_svr4='$wl-G'
fi
fi
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
# It seems that -bexpall does not export symbols beginning with
# underscore (_), so it is better to generate a list of symbols to
# export.
_LT_TAGVAR(always_export_symbols, $1)=yes
if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
# Warning - without using the other runtime loading flags (-brtl),
# -berok will link without error, but may produce a broken library.
# The "-G" linker flag allows undefined symbols.
_LT_TAGVAR(no_undefined_flag, $1)='-bernotok'
# Determine the default libpath from the value encoded in an empty
# executable.
_LT_SYS_MODULE_PATH_AIX([$1])
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
else
if test ia64 = "$host_cpu"; then
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
_LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
_LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
else
# Determine the default libpath from the value encoded in an
# empty executable.
_LT_SYS_MODULE_PATH_AIX([$1])
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
# Warning - without using the other run time loading flags,
# -berok will link without error, but may produce a broken library.
_LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
if test yes = "$with_gnu_ld"; then
# We only use this code for GNU lds that support --whole-archive.
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
else
# Exported symbols can be pulled into shared objects from archives
_LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
_LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
# -brtl affects multiple linker settings, -berok does not and is overridden later
compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
if test svr4 != "$with_aix_soname"; then
# This is similar to how AIX traditionally builds its shared
# libraries. Need -bnortl late, we may have -brtl in LDFLAGS.
_LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
fi
if test aix != "$with_aix_soname"; then
_LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
else
# used by -dlpreopen to get the symbols
_LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
fi
_LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
fi
fi
;;
beos*)
if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
# Joseph Beckenbach says some releases of gcc
# support --undefined. This deserves some investigation. FIXME
_LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
chorus*)
case $cc_basename in
*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
esac
;;
cygwin* | mingw* | pw32* | cegcc*)
case $GXX,$cc_basename in
,cl* | no,cl* | ,icl* | no,icl*)
# Native MSVC or ICC
# hardcode_libdir_flag_spec is actually meaningless, as there is
# no search path for DLLs.
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
_LT_TAGVAR(always_export_symbols, $1)=yes
_LT_TAGVAR(file_list_spec, $1)='@'
# Tell ltmain to make .lib files, not .a files.
libext=lib
# Tell ltmain to make .dll files, not .so files.
shrext_cmds=.dll
# FIXME: Setting linknames here is a bad hack.
_LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
_LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
cp "$export_symbols" "$output_objdir/$soname.def";
echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
else
$SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
fi~
$CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
linknames='
# The linker will not automatically build a static lib if we build a DLL.
# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
# Don't use ranlib
_LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
_LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
lt_tool_outputfile="@TOOL_OUTPUT@"~
case $lt_outputfile in
*.exe|*.EXE) ;;
*)
lt_outputfile=$lt_outputfile.exe
lt_tool_outputfile=$lt_tool_outputfile.exe
;;
esac~
func_to_tool_file "$lt_outputfile"~
if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
$MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
$RM "$lt_outputfile.manifest";
fi'
;;
*)
# g++
# _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
# as there is no search path for DLLs.
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
_LT_TAGVAR(always_export_symbols, $1)=no
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
# If the export-symbols file already is a .def file, use it as
# is; otherwise, prepend EXPORTS...
_LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
cp $export_symbols $output_objdir/$soname.def;
else
echo EXPORTS > $output_objdir/$soname.def;
cat $export_symbols >> $output_objdir/$soname.def;
fi~
$CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
esac
;;
darwin* | rhapsody*)
_LT_DARWIN_LINKER_FEATURES($1)
;;
os2*)
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_minus_L, $1)=yes
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
shrext_cmds=.dll
_LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
$ECHO EXPORTS >> $output_objdir/$libname.def~
emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
emximp -o $lib $output_objdir/$libname.def'
_LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
$ECHO EXPORTS >> $output_objdir/$libname.def~
prefix_cmds="$SED"~
if test EXPORTS = "`$SED 1q $export_symbols`"; then
prefix_cmds="$prefix_cmds -e 1d";
fi~
prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
emximp -o $lib $output_objdir/$libname.def'
_LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
_LT_TAGVAR(file_list_spec, $1)='@'
;;
dgux*)
case $cc_basename in
ec++*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
ghcx*)
# Green Hills C++ Compiler
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
esac
;;
freebsd2.*)
# C++ shared libraries reported to be fairly broken before
# switch to ELF
_LT_TAGVAR(ld_shlibs, $1)=no
;;
freebsd-elf*)
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
;;
freebsd* | dragonfly* | midnightbsd*)
# FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
# conventions
_LT_TAGVAR(ld_shlibs, $1)=yes
;;
haiku*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(link_all_deplibs, $1)=yes
;;
hpux9*)
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
# but as the default
# location of the library.
case $cc_basename in
CC*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
aCC*)
_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
;;
*)
if test yes = "$GXX"; then
_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
else
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
esac
;;
hpux10*|hpux11*)
if test no = "$with_gnu_ld"; then
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
case $host_cpu in
hppa*64*|ia64*)
;;
*)
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
;;
esac
fi
case $host_cpu in
hppa*64*|ia64*)
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
*)
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
_LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
# but as the default
# location of the library.
;;
esac
case $cc_basename in
CC*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
aCC*)
case $host_cpu in
hppa*64*)
_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
ia64*)
_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
*)
_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
esac
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
;;
*)
if test yes = "$GXX"; then
if test no = "$with_gnu_ld"; then
case $host_cpu in
hppa*64*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
ia64*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
esac
fi
else
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
esac
;;
interix[[3-9]]*)
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
# Instead, shared libraries are loaded at an image base (0x10000000 by
# default) and relocated if they conflict, which is a slow very memory
# consuming and fragmenting process. To avoid this, we pick a random,
# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
# time. Moving up from 0x10000000 also allows more sbrk(2) space.
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$SED "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
;;
irix5* | irix6*)
case $cc_basename in
CC*)
# SGI C++
_LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
# Archives containing C++ object files must be created using
# "CC -ar", where "CC" is the IRIX C++ compiler. This is
# necessary to make sure instantiated templates are included
# in the archive.
_LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
;;
*)
if test yes = "$GXX"; then
if test no = "$with_gnu_ld"; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
else
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib'
fi
fi
_LT_TAGVAR(link_all_deplibs, $1)=yes
;;
esac
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(inherit_rpath, $1)=yes
;;
linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
case $cc_basename in
KCC*)
# Kuck and Associates, Inc. (KAI) C++ Compiler
# KCC will only create a shared library if the output file
# ends with ".so" (or ".sl" for HP-UX), so rename the library
# to its proper name (with version) after linking.
_LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
# Archives containing C++ object files must be created using
# "CC -Bstatic", where "CC" is the KAI C++ compiler.
_LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
;;
icpc* | ecpc* )
# Intel C++
with_gnu_ld=yes
# version 8.0 and above of icpc choke on multiply defined symbols
# if we add $predep_objects and $postdep_objects, however 7.1 and
# earlier do not add the objects themselves.
case `$CC -V 2>&1` in
*"Version 7."*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
;;
*) # Version 8.0 or newer
tmp_idyn=
case $host_cpu in
ia64*) tmp_idyn=' -i_dynamic';;
esac
_LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
;;
esac
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
;;
pgCC* | pgcpp*)
# Portland Group C++ compiler
case `$CC -V` in
*pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*)
_LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
rm -rf $tpldir~
$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
_LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
rm -rf $tpldir~
$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
$RANLIB $oldlib'
_LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
rm -rf $tpldir~
$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
rm -rf $tpldir~
$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
;;
*) # Version 6 and above use weak symbols
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
;;
esac
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
;;
cxx*)
# Compaq C++
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols'
runpath_var=LD_RUN_PATH
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
;;
xl* | mpixl* | bgxl*)
# IBM XL 8.0 on PPC, with GNU ld
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
_LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
if test yes = "$supports_anon_versioning"; then
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
echo "local: *; };" >> $output_objdir/$libname.ver~
$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
fi
;;
*)
case `$CC -V 2>&1 | $SED 5q` in
*Sun\ C*)
# Sun C++ 5.9
_LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
_LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
_LT_TAGVAR(compiler_needs_object, $1)=yes
# Not sure whether something based on
# $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
# would be better.
output_verbose_link_cmd='func_echo_all'
# Archives containing C++ object files must be created using
# "CC -xar", where "CC" is the Sun C++ compiler. This is
# necessary to make sure instantiated templates are included
# in the archive.
_LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
;;
esac
;;
esac
;;
lynxos*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
m88k*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
mvs*)
case $cc_basename in
cxx*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
esac
;;
netbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
wlarc=
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
fi
# Workaround some broken pre-1.5 toolchains
output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
;;
*nto* | *qnx*)
_LT_TAGVAR(ld_shlibs, $1)=yes
;;
openbsd* | bitrig*)
if test -f /usr/libexec/ld.so; then
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
_LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
fi
output_verbose_link_cmd=func_echo_all
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
osf3* | osf4* | osf5*)
case $cc_basename in
KCC*)
# Kuck and Associates, Inc. (KAI) C++ Compiler
# KCC will only create a shared library if the output file
# ends with ".so" (or ".sl" for HP-UX), so rename the library
# to its proper name (with version) after linking.
_LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
# Archives containing C++ object files must be created using
# the KAI C++ compiler.
case $host in
osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
esac
;;
RCC*)
# Rational C++ 2.4.1
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
cxx*)
case $host in
osf3*)
_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
;;
*)
_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
echo "-hidden">> $lib.exp~
$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~
$RM $lib.exp'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
;;
esac
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
;;
*)
if test yes,no = "$GXX,$with_gnu_ld"; then
_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
case $host in
osf3*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
;;
*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
;;
esac
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
else
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
esac
;;
psos*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
sunos4*)
case $cc_basename in
CC*)
# Sun C++ 4.x
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
lcc*)
# Lucid
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
esac
;;
solaris*)
case $cc_basename in
CC* | sunCC*)
# Sun C++ 4.2, 5.x and Centerline C++
_LT_TAGVAR(archive_cmds_need_lc,$1)=yes
_LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
_LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
$CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
case $host_os in
solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
*)
# The compiler driver will combine and reorder linker options,
# but understands '-z linker_flag'.
# Supported since Solaris 2.6 (maybe 2.5.1?)
_LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
;;
esac
_LT_TAGVAR(link_all_deplibs, $1)=yes
output_verbose_link_cmd='func_echo_all'
# Archives containing C++ object files must be created using
# "CC -xar", where "CC" is the Sun C++ compiler. This is
# necessary to make sure instantiated templates are included
# in the archive.
_LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
;;
gcx*)
# Green Hills C++ Compiler
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
# The C++ compiler must be used to create the archive.
_LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
;;
*)
# GNU C++ compiler with Solaris linker
if test yes,no = "$GXX,$with_gnu_ld"; then
_LT_TAGVAR(no_undefined_flag, $1)=' $wl-z ${wl}defs'
if $CC --version | $GREP -v '^2\.7' > /dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
$CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
else
# g++ 2.7 appears to require '-G' NOT '-shared' on this
# platform.
_LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
$CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
fi
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir'
case $host_os in
solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
*)
_LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
;;
esac
fi
;;
esac
;;
sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
_LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
runpath_var='LD_RUN_PATH'
case $cc_basename in
CC*)
_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
esac
;;
sysv5* | sco3.2v5* | sco5v6*)
# Note: We CANNOT use -z defs as we might desire, because we do not
# link with -lc, and that would cause any symbols used from libc to
# always be unresolved, which means just about no library would
# ever link correctly. If we're not using GNU ld we use -z text
# though, which does catch some bad symbols but isn't as heavy-handed
# as -z defs.
_LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
_LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
_LT_TAGVAR(link_all_deplibs, $1)=yes
_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
runpath_var='LD_RUN_PATH'
case $cc_basename in
CC*)
_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~
'"$_LT_TAGVAR(old_archive_cmds, $1)"
_LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~
'"$_LT_TAGVAR(reload_cmds, $1)"
;;
*)
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
esac
;;
tandem*)
case $cc_basename in
NCC*)
# NonStop-UX NCC 3.20
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
esac
;;
vxworks*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
*)
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
esac
AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
_LT_TAGVAR(GCC, $1)=$GXX
_LT_TAGVAR(LD, $1)=$LD
## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
## the running order or otherwise move them around unless you know exactly
## what you are doing...
_LT_SYS_HIDDEN_LIBDEPS($1)
_LT_COMPILER_PIC($1)
_LT_COMPILER_C_O($1)
_LT_COMPILER_FILE_LOCKS($1)
_LT_LINKER_SHLIBS($1)
_LT_SYS_DYNAMIC_LINKER($1)
_LT_LINKER_HARDCODE_LIBPATH($1)
_LT_CONFIG($1)
fi # test -n "$compiler"
CC=$lt_save_CC
CFLAGS=$lt_save_CFLAGS
LDCXX=$LD
LD=$lt_save_LD
GCC=$lt_save_GCC
with_gnu_ld=$lt_save_with_gnu_ld
lt_cv_path_LDCXX=$lt_cv_path_LD
lt_cv_path_LD=$lt_save_path_LD
lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
fi # test yes != "$_lt_caught_CXX_error"
AC_LANG_POP
])# _LT_LANG_CXX_CONFIG
# _LT_FUNC_STRIPNAME_CNF
# ----------------------
# func_stripname_cnf prefix suffix name
# strip PREFIX and SUFFIX off of NAME.
# PREFIX and SUFFIX must not contain globbing or regex special
# characters, hashes, percent signs, but SUFFIX may contain a leading
# dot (in which case that matches only a dot).
#
# This function is identical to the (non-XSI) version of func_stripname,
# except this one can be used by m4 code that may be executed by configure,
# rather than the libtool script.
m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl
AC_REQUIRE([_LT_DECL_SED])
AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])
func_stripname_cnf ()
{
case @S|@2 in
.*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%\\\\@S|@2\$%%"`;;
*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%@S|@2\$%%"`;;
esac
} # func_stripname_cnf
])# _LT_FUNC_STRIPNAME_CNF
# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
# ---------------------------------
# Figure out "hidden" library dependencies from verbose
# compiler output when linking a shared library.
# Parse the compiler output and extract the necessary
# objects, libraries and library flags.
m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl
# Dependencies to place before and after the object being linked:
_LT_TAGVAR(predep_objects, $1)=
_LT_TAGVAR(postdep_objects, $1)=
_LT_TAGVAR(predeps, $1)=
_LT_TAGVAR(postdeps, $1)=
_LT_TAGVAR(compiler_lib_search_path, $1)=
dnl we can't use the lt_simple_compile_test_code here,
dnl because it contains code intended for an executable,
dnl not a library. It's possible we should let each
dnl tag define a new lt_????_link_test_code variable,
dnl but it's only used here...
m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
int a;
void foo (void) { a = 0; }
_LT_EOF
], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
class Foo
{
public:
Foo (void) { a = 0; }
private:
int a;
};
_LT_EOF
], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
subroutine foo
implicit none
integer*4 a
a=0
return
end
_LT_EOF
], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
subroutine foo
implicit none
integer a
a=0
return
end
_LT_EOF
], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
public class foo {
private int a;
public void bar (void) {
a = 0;
}
};
_LT_EOF
], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF
package foo
func foo() {
}
_LT_EOF
])
_lt_libdeps_save_CFLAGS=$CFLAGS
case "$CC $CFLAGS " in #(
*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
esac
dnl Parse the compiler output and extract the necessary
dnl objects, libraries and library flags.
if AC_TRY_EVAL(ac_compile); then
# Parse the compiler output and extract the necessary
# objects, libraries and library flags.
# Sentinel used to keep track of whether or not we are before
# the conftest object file.
pre_test_object_deps_done=no
for p in `eval "$output_verbose_link_cmd"`; do
case $prev$p in
-L* | -R* | -l*)
# Some compilers place space between "-{L,R}" and the path.
# Remove the space.
if test x-L = "$p" ||
test x-R = "$p"; then
prev=$p
continue
fi
# Expand the sysroot to ease extracting the directories later.
if test -z "$prev"; then
case $p in
-L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
-R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
-l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
esac
fi
case $p in
=*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
esac
if test no = "$pre_test_object_deps_done"; then
case $prev in
-L | -R)
# Internal compiler library paths should come after those
# provided the user. The postdeps already come after the
# user supplied libs so there is no need to process them.
if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
_LT_TAGVAR(compiler_lib_search_path, $1)=$prev$p
else
_LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} $prev$p"
fi
;;
# The "-l" case would never come before the object being
# linked, so don't bother handling this case.
esac
else
if test -z "$_LT_TAGVAR(postdeps, $1)"; then
_LT_TAGVAR(postdeps, $1)=$prev$p
else
_LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} $prev$p"
fi
fi
prev=
;;
*.lto.$objext) ;; # Ignore GCC LTO objects
*.$objext)
# This assumes that the test object file only shows up
# once in the compiler output.
if test "$p" = "conftest.$objext"; then
pre_test_object_deps_done=yes
continue
fi
if test no = "$pre_test_object_deps_done"; then
if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
_LT_TAGVAR(predep_objects, $1)=$p
else
_LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
fi
else
if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
_LT_TAGVAR(postdep_objects, $1)=$p
else
_LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
fi
fi
;;
*) ;; # Ignore the rest.
esac
done
# Clean up.
rm -f a.out a.exe
else
echo "libtool.m4: error: problem compiling $1 test program"
fi
$RM -f confest.$objext
CFLAGS=$_lt_libdeps_save_CFLAGS
# PORTME: override above test on systems where it is broken
m4_if([$1], [CXX],
[case $host_os in
interix[[3-9]]*)
# Interix 3.5 installs completely hosed .la files for C++, so rather than
# hack all around it, let's just trust "g++" to DTRT.
_LT_TAGVAR(predep_objects,$1)=
_LT_TAGVAR(postdep_objects,$1)=
_LT_TAGVAR(postdeps,$1)=
;;
esac
])
case " $_LT_TAGVAR(postdeps, $1) " in
*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
esac
_LT_TAGVAR(compiler_lib_search_dirs, $1)=
if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
_LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | $SED -e 's! -L! !g' -e 's!^ !!'`
fi
_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
[The directories searched by this compiler when creating a shared library])
_LT_TAGDECL([], [predep_objects], [1],
[Dependencies to place before and after the objects being linked to
create a shared library])
_LT_TAGDECL([], [postdep_objects], [1])
_LT_TAGDECL([], [predeps], [1])
_LT_TAGDECL([], [postdeps], [1])
_LT_TAGDECL([], [compiler_lib_search_path], [1],
[The library search path used internally by the compiler when linking
a shared library])
])# _LT_SYS_HIDDEN_LIBDEPS
# _LT_LANG_F77_CONFIG([TAG])
# --------------------------
# Ensure that the configuration variables for a Fortran 77 compiler are
# suitably defined. These variables are subsequently used by _LT_CONFIG
# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_F77_CONFIG],
[AC_LANG_PUSH(Fortran 77)
if test -z "$F77" || test no = "$F77"; then
_lt_disable_F77=yes
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(allow_undefined_flag, $1)=
_LT_TAGVAR(always_export_symbols, $1)=no
_LT_TAGVAR(archive_expsym_cmds, $1)=
_LT_TAGVAR(export_dynamic_flag_spec, $1)=
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
_LT_TAGVAR(hardcode_libdir_separator, $1)=
_LT_TAGVAR(hardcode_minus_L, $1)=no
_LT_TAGVAR(hardcode_automatic, $1)=no
_LT_TAGVAR(inherit_rpath, $1)=no
_LT_TAGVAR(module_cmds, $1)=
_LT_TAGVAR(module_expsym_cmds, $1)=
_LT_TAGVAR(link_all_deplibs, $1)=unknown
_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
_LT_TAGVAR(reload_flag, $1)=$reload_flag
_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
_LT_TAGVAR(no_undefined_flag, $1)=
_LT_TAGVAR(whole_archive_flag_spec, $1)=
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
# Source file extension for f77 test sources.
ac_ext=f
# Object file extension for compiled f77 test sources.
objext=o
_LT_TAGVAR(objext, $1)=$objext
# No sense in running all these tests if we already determined that
# the F77 compiler isn't working. Some variables (like enable_shared)
# are currently assumed to apply to all compilers on this platform,
# and will be corrupted by setting them based on a non-working compiler.
if test yes != "$_lt_disable_F77"; then
# Code to be used in simple compile tests
lt_simple_compile_test_code="\
subroutine t
return
end
"
# Code to be used in simple link tests
lt_simple_link_test_code="\
program t
end
"
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
_LT_TAG_COMPILER
# save warnings/boilerplate of simple test code
_LT_COMPILER_BOILERPLATE
_LT_LINKER_BOILERPLATE
# Allow CC to be a program name with arguments.
lt_save_CC=$CC
lt_save_GCC=$GCC
lt_save_CFLAGS=$CFLAGS
CC=${F77-"f77"}
CFLAGS=$FFLAGS
compiler=$CC
_LT_TAGVAR(compiler, $1)=$CC
_LT_CC_BASENAME([$compiler])
GCC=$G77
if test -n "$compiler"; then
AC_MSG_CHECKING([if libtool supports shared libraries])
AC_MSG_RESULT([$can_build_shared])
AC_MSG_CHECKING([whether to build shared libraries])
test no = "$can_build_shared" && enable_shared=no
# On AIX, shared libraries and static libraries use the same namespace, and
# are all built from PIC.
case $host_os in
aix3*)
test yes = "$enable_shared" && enable_static=no
if test -n "$RANLIB"; then
archive_cmds="$archive_cmds~\$RANLIB \$lib"
postinstall_cmds='$RANLIB $lib'
fi
;;
aix[[4-9]]*)
if test ia64 != "$host_cpu"; then
case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
yes,aix,yes) ;; # shared object as lib.so file only
yes,svr4,*) ;; # shared object as lib.so archive member only
yes,*) enable_static=no ;; # shared object in lib.a archive as well
esac
fi
;;
esac
AC_MSG_RESULT([$enable_shared])
AC_MSG_CHECKING([whether to build static libraries])
# Make sure either enable_shared or enable_static is yes.
test yes = "$enable_shared" || enable_static=yes
AC_MSG_RESULT([$enable_static])
_LT_TAGVAR(GCC, $1)=$G77
_LT_TAGVAR(LD, $1)=$LD
## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
## the running order or otherwise move them around unless you know exactly
## what you are doing...
_LT_COMPILER_PIC($1)
_LT_COMPILER_C_O($1)
_LT_COMPILER_FILE_LOCKS($1)
_LT_LINKER_SHLIBS($1)
_LT_SYS_DYNAMIC_LINKER($1)
_LT_LINKER_HARDCODE_LIBPATH($1)
_LT_CONFIG($1)
fi # test -n "$compiler"
GCC=$lt_save_GCC
CC=$lt_save_CC
CFLAGS=$lt_save_CFLAGS
fi # test yes != "$_lt_disable_F77"
AC_LANG_POP
])# _LT_LANG_F77_CONFIG
# _LT_LANG_FC_CONFIG([TAG])
# -------------------------
# Ensure that the configuration variables for a Fortran compiler are
# suitably defined. These variables are subsequently used by _LT_CONFIG
# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_FC_CONFIG],
[AC_LANG_PUSH(Fortran)
if test -z "$FC" || test no = "$FC"; then
_lt_disable_FC=yes
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(allow_undefined_flag, $1)=
_LT_TAGVAR(always_export_symbols, $1)=no
_LT_TAGVAR(archive_expsym_cmds, $1)=
_LT_TAGVAR(export_dynamic_flag_spec, $1)=
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
_LT_TAGVAR(hardcode_libdir_separator, $1)=
_LT_TAGVAR(hardcode_minus_L, $1)=no
_LT_TAGVAR(hardcode_automatic, $1)=no
_LT_TAGVAR(inherit_rpath, $1)=no
_LT_TAGVAR(module_cmds, $1)=
_LT_TAGVAR(module_expsym_cmds, $1)=
_LT_TAGVAR(link_all_deplibs, $1)=unknown
_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
_LT_TAGVAR(reload_flag, $1)=$reload_flag
_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
_LT_TAGVAR(no_undefined_flag, $1)=
_LT_TAGVAR(whole_archive_flag_spec, $1)=
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
# Source file extension for fc test sources.
ac_ext=${ac_fc_srcext-f}
# Object file extension for compiled fc test sources.
objext=o
_LT_TAGVAR(objext, $1)=$objext
# No sense in running all these tests if we already determined that
# the FC compiler isn't working. Some variables (like enable_shared)
# are currently assumed to apply to all compilers on this platform,
# and will be corrupted by setting them based on a non-working compiler.
if test yes != "$_lt_disable_FC"; then
# Code to be used in simple compile tests
lt_simple_compile_test_code="\
subroutine t
return
end
"
# Code to be used in simple link tests
lt_simple_link_test_code="\
program t
end
"
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
_LT_TAG_COMPILER
# save warnings/boilerplate of simple test code
_LT_COMPILER_BOILERPLATE
_LT_LINKER_BOILERPLATE
# Allow CC to be a program name with arguments.
lt_save_CC=$CC
lt_save_GCC=$GCC
lt_save_CFLAGS=$CFLAGS
CC=${FC-"f95"}
CFLAGS=$FCFLAGS
compiler=$CC
GCC=$ac_cv_fc_compiler_gnu
_LT_TAGVAR(compiler, $1)=$CC
_LT_CC_BASENAME([$compiler])
if test -n "$compiler"; then
AC_MSG_CHECKING([if libtool supports shared libraries])
AC_MSG_RESULT([$can_build_shared])
AC_MSG_CHECKING([whether to build shared libraries])
test no = "$can_build_shared" && enable_shared=no
# On AIX, shared libraries and static libraries use the same namespace, and
# are all built from PIC.
case $host_os in
aix3*)
test yes = "$enable_shared" && enable_static=no
if test -n "$RANLIB"; then
archive_cmds="$archive_cmds~\$RANLIB \$lib"
postinstall_cmds='$RANLIB $lib'
fi
;;
aix[[4-9]]*)
if test ia64 != "$host_cpu"; then
case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
yes,aix,yes) ;; # shared object as lib.so file only
yes,svr4,*) ;; # shared object as lib.so archive member only
yes,*) enable_static=no ;; # shared object in lib.a archive as well
esac
fi
;;
esac
AC_MSG_RESULT([$enable_shared])
AC_MSG_CHECKING([whether to build static libraries])
# Make sure either enable_shared or enable_static is yes.
test yes = "$enable_shared" || enable_static=yes
AC_MSG_RESULT([$enable_static])
_LT_TAGVAR(GCC, $1)=$ac_cv_fc_compiler_gnu
_LT_TAGVAR(LD, $1)=$LD
## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
## the running order or otherwise move them around unless you know exactly
## what you are doing...
_LT_SYS_HIDDEN_LIBDEPS($1)
_LT_COMPILER_PIC($1)
_LT_COMPILER_C_O($1)
_LT_COMPILER_FILE_LOCKS($1)
_LT_LINKER_SHLIBS($1)
_LT_SYS_DYNAMIC_LINKER($1)
_LT_LINKER_HARDCODE_LIBPATH($1)
_LT_CONFIG($1)
fi # test -n "$compiler"
GCC=$lt_save_GCC
CC=$lt_save_CC
CFLAGS=$lt_save_CFLAGS
fi # test yes != "$_lt_disable_FC"
AC_LANG_POP
])# _LT_LANG_FC_CONFIG
# _LT_LANG_GCJ_CONFIG([TAG])
# --------------------------
# Ensure that the configuration variables for the GNU Java Compiler compiler
# are suitably defined. These variables are subsequently used by _LT_CONFIG
# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_GCJ_CONFIG],
[AC_REQUIRE([LT_PROG_GCJ])dnl
AC_LANG_SAVE
# Source file extension for Java test sources.
ac_ext=java
# Object file extension for compiled Java test sources.
objext=o
_LT_TAGVAR(objext, $1)=$objext
# Code to be used in simple compile tests
lt_simple_compile_test_code="class foo {}"
# Code to be used in simple link tests
lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
_LT_TAG_COMPILER
# save warnings/boilerplate of simple test code
_LT_COMPILER_BOILERPLATE
_LT_LINKER_BOILERPLATE
# Allow CC to be a program name with arguments.
lt_save_CC=$CC
lt_save_CFLAGS=$CFLAGS
lt_save_GCC=$GCC
GCC=yes
CC=${GCJ-"gcj"}
CFLAGS=$GCJFLAGS
compiler=$CC
_LT_TAGVAR(compiler, $1)=$CC
_LT_TAGVAR(LD, $1)=$LD
_LT_CC_BASENAME([$compiler])
# GCJ did not exist at the time GCC didn't implicitly link libc in.
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
_LT_TAGVAR(reload_flag, $1)=$reload_flag
_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
## the running order or otherwise move them around unless you know exactly
## what you are doing...
if test -n "$compiler"; then
_LT_COMPILER_NO_RTTI($1)
_LT_COMPILER_PIC($1)
_LT_COMPILER_C_O($1)
_LT_COMPILER_FILE_LOCKS($1)
_LT_LINKER_SHLIBS($1)
_LT_LINKER_HARDCODE_LIBPATH($1)
_LT_CONFIG($1)
fi
AC_LANG_RESTORE
GCC=$lt_save_GCC
CC=$lt_save_CC
CFLAGS=$lt_save_CFLAGS
])# _LT_LANG_GCJ_CONFIG
# _LT_LANG_GO_CONFIG([TAG])
# --------------------------
# Ensure that the configuration variables for the GNU Go compiler
# are suitably defined. These variables are subsequently used by _LT_CONFIG
# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_GO_CONFIG],
[AC_REQUIRE([LT_PROG_GO])dnl
AC_LANG_SAVE
# Source file extension for Go test sources.
ac_ext=go
# Object file extension for compiled Go test sources.
objext=o
_LT_TAGVAR(objext, $1)=$objext
# Code to be used in simple compile tests
lt_simple_compile_test_code="package main; func main() { }"
# Code to be used in simple link tests
lt_simple_link_test_code='package main; func main() { }'
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
_LT_TAG_COMPILER
# save warnings/boilerplate of simple test code
_LT_COMPILER_BOILERPLATE
_LT_LINKER_BOILERPLATE
# Allow CC to be a program name with arguments.
lt_save_CC=$CC
lt_save_CFLAGS=$CFLAGS
lt_save_GCC=$GCC
GCC=yes
CC=${GOC-"gccgo"}
CFLAGS=$GOFLAGS
compiler=$CC
_LT_TAGVAR(compiler, $1)=$CC
_LT_TAGVAR(LD, $1)=$LD
_LT_CC_BASENAME([$compiler])
# Go did not exist at the time GCC didn't implicitly link libc in.
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
_LT_TAGVAR(reload_flag, $1)=$reload_flag
_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
## the running order or otherwise move them around unless you know exactly
## what you are doing...
if test -n "$compiler"; then
_LT_COMPILER_NO_RTTI($1)
_LT_COMPILER_PIC($1)
_LT_COMPILER_C_O($1)
_LT_COMPILER_FILE_LOCKS($1)
_LT_LINKER_SHLIBS($1)
_LT_LINKER_HARDCODE_LIBPATH($1)
_LT_CONFIG($1)
fi
AC_LANG_RESTORE
GCC=$lt_save_GCC
CC=$lt_save_CC
CFLAGS=$lt_save_CFLAGS
])# _LT_LANG_GO_CONFIG
# _LT_LANG_RC_CONFIG([TAG])
# -------------------------
# Ensure that the configuration variables for the Windows resource compiler
# are suitably defined. These variables are subsequently used by _LT_CONFIG
# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_RC_CONFIG],
[AC_REQUIRE([LT_PROG_RC])dnl
AC_LANG_SAVE
# Source file extension for RC test sources.
ac_ext=rc
# Object file extension for compiled RC test sources.
objext=o
_LT_TAGVAR(objext, $1)=$objext
# Code to be used in simple compile tests
lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
# Code to be used in simple link tests
lt_simple_link_test_code=$lt_simple_compile_test_code
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
_LT_TAG_COMPILER
# save warnings/boilerplate of simple test code
_LT_COMPILER_BOILERPLATE
_LT_LINKER_BOILERPLATE
# Allow CC to be a program name with arguments.
lt_save_CC=$CC
lt_save_CFLAGS=$CFLAGS
lt_save_GCC=$GCC
GCC=
CC=${RC-"windres"}
CFLAGS=
compiler=$CC
_LT_TAGVAR(compiler, $1)=$CC
_LT_CC_BASENAME([$compiler])
_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
if test -n "$compiler"; then
:
_LT_CONFIG($1)
fi
GCC=$lt_save_GCC
AC_LANG_RESTORE
CC=$lt_save_CC
CFLAGS=$lt_save_CFLAGS
])# _LT_LANG_RC_CONFIG
# LT_PROG_GCJ
# -----------
AC_DEFUN([LT_PROG_GCJ],
[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
[m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
[AC_CHECK_TOOL(GCJ, gcj,)
test set = "${GCJFLAGS+set}" || GCJFLAGS="-g -O2"
AC_SUBST(GCJFLAGS)])])[]dnl
])
# Old name:
AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
# LT_PROG_GO
# ----------
AC_DEFUN([LT_PROG_GO],
[AC_CHECK_TOOL(GOC, gccgo,)
])
# LT_PROG_RC
# ----------
AC_DEFUN([LT_PROG_RC],
[AC_CHECK_TOOL(RC, windres,)
])
# Old name:
AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([LT_AC_PROG_RC], [])
# _LT_DECL_EGREP
# --------------
# If we don't have a new enough Autoconf to choose the best grep
# available, choose the one first in the user's PATH.
m4_defun([_LT_DECL_EGREP],
[AC_REQUIRE([AC_PROG_EGREP])dnl
AC_REQUIRE([AC_PROG_FGREP])dnl
test -z "$GREP" && GREP=grep
_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
_LT_DECL([], [EGREP], [1], [An ERE matcher])
_LT_DECL([], [FGREP], [1], [A literal string matcher])
dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too
AC_SUBST([GREP])
])
# _LT_DECL_OBJDUMP
# --------------
# If we don't have a new enough Autoconf to choose the best objdump
# available, choose the one first in the user's PATH.
m4_defun([_LT_DECL_OBJDUMP],
[AC_CHECK_TOOL(OBJDUMP, objdump, false)
test -z "$OBJDUMP" && OBJDUMP=objdump
_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
AC_SUBST([OBJDUMP])
])
# _LT_DECL_DLLTOOL
# ----------------
# Ensure DLLTOOL variable is set.
m4_defun([_LT_DECL_DLLTOOL],
[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
test -z "$DLLTOOL" && DLLTOOL=dlltool
_LT_DECL([], [DLLTOOL], [1], [DLL creation program])
AC_SUBST([DLLTOOL])
])
# _LT_DECL_FILECMD
# ----------------
# Check for a file(cmd) program that can be used to detect file type and magic
m4_defun([_LT_DECL_FILECMD],
[AC_CHECK_TOOL([FILECMD], [file], [:])
_LT_DECL([], [FILECMD], [1], [A file(cmd) program that detects file types])
])# _LD_DECL_FILECMD
# _LT_DECL_SED
# ------------
# Check for a fully-functional sed program, that truncates
# as few characters as possible. Prefer GNU sed if found.
m4_defun([_LT_DECL_SED],
[AC_PROG_SED
test -z "$SED" && SED=sed
Xsed="$SED -e 1s/^X//"
_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
[Sed that helps us avoid accidentally triggering echo(1) options like -n])
])# _LT_DECL_SED
m4_ifndef([AC_PROG_SED], [
############################################################
# NOTE: This macro has been submitted for inclusion into #
# GNU Autoconf as AC_PROG_SED. When it is available in #
# a released version of Autoconf we should remove this #
# macro and use it instead. #
############################################################
m4_defun([AC_PROG_SED],
[AC_MSG_CHECKING([for a sed that does not truncate output])
AC_CACHE_VAL(lt_cv_path_SED,
[# Loop through the user's path and test for sed and gsed.
# Then use that list of sed's as ones to test for truncation.
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for lt_ac_prog in sed gsed; do
for ac_exec_ext in '' $ac_executable_extensions; do
if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
fi
done
done
done
IFS=$as_save_IFS
lt_ac_max=0
lt_ac_count=0
# Add /usr/xpg4/bin/sed as it is typically found on Solaris
# along with /bin/sed that truncates output.
for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
test ! -f "$lt_ac_sed" && continue
cat /dev/null > conftest.in
lt_ac_count=0
echo $ECHO_N "0123456789$ECHO_C" >conftest.in
# Check for GNU sed and select it if it is found.
if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
lt_cv_path_SED=$lt_ac_sed
break
fi
while true; do
cat conftest.in conftest.in >conftest.tmp
mv conftest.tmp conftest.in
cp conftest.in conftest.nl
echo >>conftest.nl
$lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
cmp -s conftest.out conftest.nl || break
# 10000 chars as input seems more than enough
test 10 -lt "$lt_ac_count" && break
lt_ac_count=`expr $lt_ac_count + 1`
if test "$lt_ac_count" -gt "$lt_ac_max"; then
lt_ac_max=$lt_ac_count
lt_cv_path_SED=$lt_ac_sed
fi
done
done
])
SED=$lt_cv_path_SED
AC_SUBST([SED])
AC_MSG_RESULT([$SED])
])#AC_PROG_SED
])#m4_ifndef
# Old name:
AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([LT_AC_PROG_SED], [])
# _LT_CHECK_SHELL_FEATURES
# ------------------------
# Find out whether the shell is Bourne or XSI compatible,
# or has some other useful features.
m4_defun([_LT_CHECK_SHELL_FEATURES],
[if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
lt_unset=unset
else
lt_unset=false
fi
_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
# test EBCDIC or ASCII
case `echo X|tr X '\101'` in
A) # ASCII based system
# \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
lt_SP2NL='tr \040 \012'
lt_NL2SP='tr \015\012 \040\040'
;;
*) # EBCDIC based system
lt_SP2NL='tr \100 \n'
lt_NL2SP='tr \r\n \100\100'
;;
esac
_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
])# _LT_CHECK_SHELL_FEATURES
# _LT_PATH_CONVERSION_FUNCTIONS
# -----------------------------
# Determine what file name conversion functions should be used by
# func_to_host_file (and, implicitly, by func_to_host_path). These are needed
# for certain cross-compile configurations and native mingw.
m4_defun([_LT_PATH_CONVERSION_FUNCTIONS],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
AC_MSG_CHECKING([how to convert $build file names to $host format])
AC_CACHE_VAL(lt_cv_to_host_file_cmd,
[case $host in
*-*-mingw* )
case $build in
*-*-mingw* ) # actually msys
lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
;;
*-*-cygwin* )
lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
;;
* ) # otherwise, assume *nix
lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
;;
esac
;;
*-*-cygwin* )
case $build in
*-*-mingw* ) # actually msys
lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
;;
*-*-cygwin* )
lt_cv_to_host_file_cmd=func_convert_file_noop
;;
* ) # otherwise, assume *nix
lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
;;
esac
;;
* ) # unhandled hosts (and "normal" native builds)
lt_cv_to_host_file_cmd=func_convert_file_noop
;;
esac
])
to_host_file_cmd=$lt_cv_to_host_file_cmd
AC_MSG_RESULT([$lt_cv_to_host_file_cmd])
_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd],
[0], [convert $build file names to $host format])dnl
AC_MSG_CHECKING([how to convert $build file names to toolchain format])
AC_CACHE_VAL(lt_cv_to_tool_file_cmd,
[#assume ordinary cross tools, or native build.
lt_cv_to_tool_file_cmd=func_convert_file_noop
case $host in
*-*-mingw* )
case $build in
*-*-mingw* ) # actually msys
lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
;;
esac
;;
esac
])
to_tool_file_cmd=$lt_cv_to_tool_file_cmd
AC_MSG_RESULT([$lt_cv_to_tool_file_cmd])
_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd],
[0], [convert $build files to toolchain format])dnl
])# _LT_PATH_CONVERSION_FUNCTIONS
nbdkit-1.42.2/m4/ltoptions.m4 0000644 0001750 0001750 00000034275 14771245444 011400 # Helper functions for option handling. -*- Autoconf -*-
#
# Copyright (C) 2004-2005, 2007-2009, 2011-2019, 2021-2022 Free
# Software Foundation, Inc.
# Written by Gary V. Vaughan, 2004
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# serial 8 ltoptions.m4
# This is to help aclocal find these macros, as it can't see m4_define.
AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
# ------------------------------------------
m4_define([_LT_MANGLE_OPTION],
[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
# ---------------------------------------
# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
# matching handler defined, dispatch to it. Other OPTION-NAMEs are
# saved as a flag.
m4_define([_LT_SET_OPTION],
[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
_LT_MANGLE_DEFUN([$1], [$2]),
[m4_warning([Unknown $1 option '$2'])])[]dnl
])
# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
# ------------------------------------------------------------
# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
m4_define([_LT_IF_OPTION],
[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
# -------------------------------------------------------
# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
# are set.
m4_define([_LT_UNLESS_OPTIONS],
[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
[m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
[m4_define([$0_found])])])[]dnl
m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
])[]dnl
])
# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
# ----------------------------------------
# OPTION-LIST is a space-separated list of Libtool options associated
# with MACRO-NAME. If any OPTION has a matching handler declared with
# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
# the unknown option and exit.
m4_defun([_LT_SET_OPTIONS],
[# Set options
m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
[_LT_SET_OPTION([$1], _LT_Option)])
m4_if([$1],[LT_INIT],[
dnl
dnl Simply set some default values (i.e off) if boolean options were not
dnl specified:
_LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
])
_LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
])
dnl
dnl If no reference was made to various pairs of opposing options, then
dnl we run the default mode handler for the pair. For example, if neither
dnl 'shared' nor 'disable-shared' was passed, we enable building of shared
dnl archives by default:
_LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
_LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
_LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
_LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
[_LT_ENABLE_FAST_INSTALL])
_LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4],
[_LT_WITH_AIX_SONAME([aix])])
])
])# _LT_SET_OPTIONS
## --------------------------------- ##
## Macros to handle LT_INIT options. ##
## --------------------------------- ##
# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
# -----------------------------------------
m4_define([_LT_MANGLE_DEFUN],
[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
# -----------------------------------------------
m4_define([LT_OPTION_DEFINE],
[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
])# LT_OPTION_DEFINE
# dlopen
# ------
LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
])
AU_DEFUN([AC_LIBTOOL_DLOPEN],
[_LT_SET_OPTION([LT_INIT], [dlopen])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you
put the 'dlopen' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
# win32-dll
# ---------
# Declare package support for building win32 dll's.
LT_OPTION_DEFINE([LT_INIT], [win32-dll],
[enable_win32_dll=yes
case $host in
*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
AC_CHECK_TOOL(AS, as, false)
AC_CHECK_TOOL(DLLTOOL, dlltool, false)
AC_CHECK_TOOL(OBJDUMP, objdump, false)
;;
esac
test -z "$AS" && AS=as
_LT_DECL([], [AS], [1], [Assembler program])dnl
test -z "$DLLTOOL" && DLLTOOL=dlltool
_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
test -z "$OBJDUMP" && OBJDUMP=objdump
_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
])# win32-dll
AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
_LT_SET_OPTION([LT_INIT], [win32-dll])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you
put the 'win32-dll' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
# _LT_ENABLE_SHARED([DEFAULT])
# ----------------------------
# implement the --enable-shared flag, and supports the 'shared' and
# 'disable-shared' LT_INIT options.
# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
m4_define([_LT_ENABLE_SHARED],
[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
AC_ARG_ENABLE([shared],
[AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
[build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
[p=${PACKAGE-default}
case $enableval in
yes) enable_shared=yes ;;
no) enable_shared=no ;;
*)
enable_shared=no
# Look at the argument we got. We use all the common list separators.
lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for pkg in $enableval; do
IFS=$lt_save_ifs
if test "X$pkg" = "X$p"; then
enable_shared=yes
fi
done
IFS=$lt_save_ifs
;;
esac],
[enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
_LT_DECL([build_libtool_libs], [enable_shared], [0],
[Whether or not to build shared libraries])
])# _LT_ENABLE_SHARED
LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
# Old names:
AC_DEFUN([AC_ENABLE_SHARED],
[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
])
AC_DEFUN([AC_DISABLE_SHARED],
[_LT_SET_OPTION([LT_INIT], [disable-shared])
])
AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AM_ENABLE_SHARED], [])
dnl AC_DEFUN([AM_DISABLE_SHARED], [])
# _LT_ENABLE_STATIC([DEFAULT])
# ----------------------------
# implement the --enable-static flag, and support the 'static' and
# 'disable-static' LT_INIT options.
# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
m4_define([_LT_ENABLE_STATIC],
[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
AC_ARG_ENABLE([static],
[AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
[build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
[p=${PACKAGE-default}
case $enableval in
yes) enable_static=yes ;;
no) enable_static=no ;;
*)
enable_static=no
# Look at the argument we got. We use all the common list separators.
lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for pkg in $enableval; do
IFS=$lt_save_ifs
if test "X$pkg" = "X$p"; then
enable_static=yes
fi
done
IFS=$lt_save_ifs
;;
esac],
[enable_static=]_LT_ENABLE_STATIC_DEFAULT)
_LT_DECL([build_old_libs], [enable_static], [0],
[Whether or not to build static libraries])
])# _LT_ENABLE_STATIC
LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
# Old names:
AC_DEFUN([AC_ENABLE_STATIC],
[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
])
AC_DEFUN([AC_DISABLE_STATIC],
[_LT_SET_OPTION([LT_INIT], [disable-static])
])
AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AM_ENABLE_STATIC], [])
dnl AC_DEFUN([AM_DISABLE_STATIC], [])
# _LT_ENABLE_FAST_INSTALL([DEFAULT])
# ----------------------------------
# implement the --enable-fast-install flag, and support the 'fast-install'
# and 'disable-fast-install' LT_INIT options.
# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
m4_define([_LT_ENABLE_FAST_INSTALL],
[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
AC_ARG_ENABLE([fast-install],
[AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
[optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
[p=${PACKAGE-default}
case $enableval in
yes) enable_fast_install=yes ;;
no) enable_fast_install=no ;;
*)
enable_fast_install=no
# Look at the argument we got. We use all the common list separators.
lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for pkg in $enableval; do
IFS=$lt_save_ifs
if test "X$pkg" = "X$p"; then
enable_fast_install=yes
fi
done
IFS=$lt_save_ifs
;;
esac],
[enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
_LT_DECL([fast_install], [enable_fast_install], [0],
[Whether or not to optimize for fast installation])dnl
])# _LT_ENABLE_FAST_INSTALL
LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
# Old names:
AU_DEFUN([AC_ENABLE_FAST_INSTALL],
[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you put
the 'fast-install' option into LT_INIT's first parameter.])
])
AU_DEFUN([AC_DISABLE_FAST_INSTALL],
[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you put
the 'disable-fast-install' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
# _LT_WITH_AIX_SONAME([DEFAULT])
# ----------------------------------
# implement the --with-aix-soname flag, and support the `aix-soname=aix'
# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT
# is either `aix', `both' or `svr4'. If omitted, it defaults to `aix'.
m4_define([_LT_WITH_AIX_SONAME],
[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl
shared_archive_member_spec=
case $host,$enable_shared in
power*-*-aix[[5-9]]*,yes)
AC_MSG_CHECKING([which variant of shared library versioning to provide])
AC_ARG_WITH([aix-soname],
[AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
[shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])],
[case $withval in
aix|svr4|both)
;;
*)
AC_MSG_ERROR([Unknown argument to --with-aix-soname])
;;
esac
lt_cv_with_aix_soname=$with_aix_soname],
[AC_CACHE_VAL([lt_cv_with_aix_soname],
[lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT)
with_aix_soname=$lt_cv_with_aix_soname])
AC_MSG_RESULT([$with_aix_soname])
if test aix != "$with_aix_soname"; then
# For the AIX way of multilib, we name the shared archive member
# based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
# and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
# Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
# the AIX toolchain works better with OBJECT_MODE set (default 32).
if test 64 = "${OBJECT_MODE-32}"; then
shared_archive_member_spec=shr_64
else
shared_archive_member_spec=shr
fi
fi
;;
*)
with_aix_soname=aix
;;
esac
_LT_DECL([], [shared_archive_member_spec], [0],
[Shared archive member basename, for filename based shared library versioning on AIX])dnl
])# _LT_WITH_AIX_SONAME
LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])])
LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])])
LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])])
# _LT_WITH_PIC([MODE])
# --------------------
# implement the --with-pic flag, and support the 'pic-only' and 'no-pic'
# LT_INIT options.
# MODE is either 'yes' or 'no'. If omitted, it defaults to 'both'.
m4_define([_LT_WITH_PIC],
[AC_ARG_WITH([pic],
[AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
[lt_p=${PACKAGE-default}
case $withval in
yes|no) pic_mode=$withval ;;
*)
pic_mode=default
# Look at the argument we got. We use all the common list separators.
lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for lt_pkg in $withval; do
IFS=$lt_save_ifs
if test "X$lt_pkg" = "X$lt_p"; then
pic_mode=yes
fi
done
IFS=$lt_save_ifs
;;
esac],
[pic_mode=m4_default([$1], [default])])
_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
])# _LT_WITH_PIC
LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
# Old name:
AU_DEFUN([AC_LIBTOOL_PICMODE],
[_LT_SET_OPTION([LT_INIT], [pic-only])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you
put the 'pic-only' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
## ----------------- ##
## LTDL_INIT Options ##
## ----------------- ##
m4_define([_LTDL_MODE], [])
LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
[m4_define([_LTDL_MODE], [nonrecursive])])
LT_OPTION_DEFINE([LTDL_INIT], [recursive],
[m4_define([_LTDL_MODE], [recursive])])
LT_OPTION_DEFINE([LTDL_INIT], [subproject],
[m4_define([_LTDL_MODE], [subproject])])
m4_define([_LTDL_TYPE], [])
LT_OPTION_DEFINE([LTDL_INIT], [installable],
[m4_define([_LTDL_TYPE], [installable])])
LT_OPTION_DEFINE([LTDL_INIT], [convenience],
[m4_define([_LTDL_TYPE], [convenience])])
nbdkit-1.42.2/m4/ltsugar.m4 0000644 0001750 0001750 00000010453 14771245444 011016 # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*-
#
# Copyright (C) 2004-2005, 2007-2008, 2011-2019, 2021-2022 Free Software
# Foundation, Inc.
# Written by Gary V. Vaughan, 2004
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# serial 6 ltsugar.m4
# This is to help aclocal find these macros, as it can't see m4_define.
AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
# lt_join(SEP, ARG1, [ARG2...])
# -----------------------------
# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
# associated separator.
# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
# versions in m4sugar had bugs.
m4_define([lt_join],
[m4_if([$#], [1], [],
[$#], [2], [[$2]],
[m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
m4_define([_lt_join],
[m4_if([$#$2], [2], [],
[m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
# lt_car(LIST)
# lt_cdr(LIST)
# ------------
# Manipulate m4 lists.
# These macros are necessary as long as will still need to support
# Autoconf-2.59, which quotes differently.
m4_define([lt_car], [[$1]])
m4_define([lt_cdr],
[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
[$#], 1, [],
[m4_dquote(m4_shift($@))])])
m4_define([lt_unquote], $1)
# lt_append(MACRO-NAME, STRING, [SEPARATOR])
# ------------------------------------------
# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
# Note that neither SEPARATOR nor STRING are expanded; they are appended
# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
# No SEPARATOR is output if MACRO-NAME was previously undefined (different
# than defined and empty).
#
# This macro is needed until we can rely on Autoconf 2.62, since earlier
# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
m4_define([lt_append],
[m4_define([$1],
m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
# ----------------------------------------------------------
# Produce a SEP delimited list of all paired combinations of elements of
# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list
# has the form PREFIXmINFIXSUFFIXn.
# Needed until we can rely on m4_combine added in Autoconf 2.62.
m4_define([lt_combine],
[m4_if(m4_eval([$# > 3]), [1],
[m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
[[m4_foreach([_Lt_prefix], [$2],
[m4_foreach([_Lt_suffix],
]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
# -----------------------------------------------------------------------
# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
m4_define([lt_if_append_uniq],
[m4_ifdef([$1],
[m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
[lt_append([$1], [$2], [$3])$4],
[$5])],
[lt_append([$1], [$2], [$3])$4])])
# lt_dict_add(DICT, KEY, VALUE)
# -----------------------------
m4_define([lt_dict_add],
[m4_define([$1($2)], [$3])])
# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
# --------------------------------------------
m4_define([lt_dict_add_subkey],
[m4_define([$1($2:$3)], [$4])])
# lt_dict_fetch(DICT, KEY, [SUBKEY])
# ----------------------------------
m4_define([lt_dict_fetch],
[m4_ifval([$3],
m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
# -----------------------------------------------------------------
m4_define([lt_if_dict_fetch],
[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
[$5],
[$6])])
# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
# --------------------------------------------------------------
m4_define([lt_dict_filter],
[m4_if([$5], [], [],
[lt_join(m4_quote(m4_default([$4], [[, ]])),
lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
[lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
])
nbdkit-1.42.2/m4/ltversion.m4 0000644 0001750 0001750 00000001312 14771245444 011354 # ltversion.m4 -- version numbers -*- Autoconf -*-
#
# Copyright (C) 2004, 2011-2019, 2021-2022 Free Software Foundation,
# Inc.
# Written by Scott James Remnant, 2004
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# @configure_input@
# serial 4245 ltversion.m4
# This file is part of GNU Libtool
m4_define([LT_PACKAGE_VERSION], [2.4.7])
m4_define([LT_PACKAGE_REVISION], [2.4.7])
AC_DEFUN([LTVERSION_VERSION],
[macro_version='2.4.7'
macro_revision='2.4.7'
_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
_LT_DECL(, macro_revision, 0)
])
nbdkit-1.42.2/m4/lt~obsolete.m4 0000644 0001750 0001750 00000014007 14771245444 011706 # lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*-
#
# Copyright (C) 2004-2005, 2007, 2009, 2011-2019, 2021-2022 Free
# Software Foundation, Inc.
# Written by Scott James Remnant, 2004.
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# serial 5 lt~obsolete.m4
# These exist entirely to fool aclocal when bootstrapping libtool.
#
# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN),
# which have later been changed to m4_define as they aren't part of the
# exported API, or moved to Autoconf or Automake where they belong.
#
# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN
# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us
# using a macro with the same name in our local m4/libtool.m4 it'll
# pull the old libtool.m4 in (it doesn't see our shiny new m4_define
# and doesn't know about Autoconf macros at all.)
#
# So we provide this file, which has a silly filename so it's always
# included after everything else. This provides aclocal with the
# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
# because those macros already exist, or will be overwritten later.
# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
#
# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
# Yes, that means every name once taken will need to remain here until
# we give up compatibility with versions before 1.7, at which point
# we need to keep only those names which we still refer to.
# This is to help aclocal find these macros, as it can't see m4_define.
AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])])
m4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])])
m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])])
m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])])
m4_ifndef([_LT_AC_SHELL_INIT], [AC_DEFUN([_LT_AC_SHELL_INIT])])
m4_ifndef([_LT_AC_SYS_LIBPATH_AIX], [AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])])
m4_ifndef([_LT_PROG_LTMAIN], [AC_DEFUN([_LT_PROG_LTMAIN])])
m4_ifndef([_LT_AC_TAGVAR], [AC_DEFUN([_LT_AC_TAGVAR])])
m4_ifndef([AC_LTDL_ENABLE_INSTALL], [AC_DEFUN([AC_LTDL_ENABLE_INSTALL])])
m4_ifndef([AC_LTDL_PREOPEN], [AC_DEFUN([AC_LTDL_PREOPEN])])
m4_ifndef([_LT_AC_SYS_COMPILER], [AC_DEFUN([_LT_AC_SYS_COMPILER])])
m4_ifndef([_LT_AC_LOCK], [AC_DEFUN([_LT_AC_LOCK])])
m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE], [AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])])
m4_ifndef([_LT_AC_TRY_DLOPEN_SELF], [AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])])
m4_ifndef([AC_LIBTOOL_PROG_CC_C_O], [AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])])
m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])])
m4_ifndef([AC_LIBTOOL_OBJDIR], [AC_DEFUN([AC_LIBTOOL_OBJDIR])])
m4_ifndef([AC_LTDL_OBJDIR], [AC_DEFUN([AC_LTDL_OBJDIR])])
m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])])
m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP], [AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP])])
m4_ifndef([AC_PATH_MAGIC], [AC_DEFUN([AC_PATH_MAGIC])])
m4_ifndef([AC_PROG_LD_GNU], [AC_DEFUN([AC_PROG_LD_GNU])])
m4_ifndef([AC_PROG_LD_RELOAD_FLAG], [AC_DEFUN([AC_PROG_LD_RELOAD_FLAG])])
m4_ifndef([AC_DEPLIBS_CHECK_METHOD], [AC_DEFUN([AC_DEPLIBS_CHECK_METHOD])])
m4_ifndef([AC_LIBTOOL_PROG_COMPILER_NO_RTTI], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI])])
m4_ifndef([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE], [AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])])
m4_ifndef([AC_LIBTOOL_PROG_COMPILER_PIC], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC])])
m4_ifndef([AC_LIBTOOL_PROG_LD_SHLIBS], [AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS])])
m4_ifndef([AC_LIBTOOL_POSTDEP_PREDEP], [AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP])])
m4_ifndef([LT_AC_PROG_EGREP], [AC_DEFUN([LT_AC_PROG_EGREP])])
m4_ifndef([LT_AC_PROG_SED], [AC_DEFUN([LT_AC_PROG_SED])])
m4_ifndef([_LT_CC_BASENAME], [AC_DEFUN([_LT_CC_BASENAME])])
m4_ifndef([_LT_COMPILER_BOILERPLATE], [AC_DEFUN([_LT_COMPILER_BOILERPLATE])])
m4_ifndef([_LT_LINKER_BOILERPLATE], [AC_DEFUN([_LT_LINKER_BOILERPLATE])])
m4_ifndef([_AC_PROG_LIBTOOL], [AC_DEFUN([_AC_PROG_LIBTOOL])])
m4_ifndef([AC_LIBTOOL_SETUP], [AC_DEFUN([AC_LIBTOOL_SETUP])])
m4_ifndef([_LT_AC_CHECK_DLFCN], [AC_DEFUN([_LT_AC_CHECK_DLFCN])])
m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER], [AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])])
m4_ifndef([_LT_AC_TAGCONFIG], [AC_DEFUN([_LT_AC_TAGCONFIG])])
m4_ifndef([AC_DISABLE_FAST_INSTALL], [AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
m4_ifndef([_LT_AC_LANG_CXX], [AC_DEFUN([_LT_AC_LANG_CXX])])
m4_ifndef([_LT_AC_LANG_F77], [AC_DEFUN([_LT_AC_LANG_F77])])
m4_ifndef([_LT_AC_LANG_GCJ], [AC_DEFUN([_LT_AC_LANG_GCJ])])
m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
m4_ifndef([_LT_AC_LANG_C_CONFIG], [AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
m4_ifndef([_LT_AC_LANG_CXX_CONFIG], [AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])])
m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])])
m4_ifndef([_LT_AC_LANG_F77_CONFIG], [AC_DEFUN([_LT_AC_LANG_F77_CONFIG])])
m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])])
m4_ifndef([_LT_AC_LANG_GCJ_CONFIG], [AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])])
m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
m4_ifndef([_LT_AC_LANG_RC_CONFIG], [AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
m4_ifndef([AC_LIBTOOL_CONFIG], [AC_DEFUN([AC_LIBTOOL_CONFIG])])
m4_ifndef([_LT_AC_FILE_LTDLL_C], [AC_DEFUN([_LT_AC_FILE_LTDLL_C])])
m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS], [AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])])
m4_ifndef([_LT_AC_PROG_CXXCPP], [AC_DEFUN([_LT_AC_PROG_CXXCPP])])
m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS], [AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])])
m4_ifndef([_LT_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])])
m4_ifndef([_LT_PROG_F77], [AC_DEFUN([_LT_PROG_F77])])
m4_ifndef([_LT_PROG_FC], [AC_DEFUN([_LT_PROG_FC])])
m4_ifndef([_LT_PROG_CXX], [AC_DEFUN([_LT_PROG_CXX])])
nbdkit-1.42.2/m4/ocaml.m4 0000644 0001750 0001750 00000013450 14534316443 010423 dnl autoconf macros for OCaml
dnl
dnl Copyright © 2009 Richard W.M. Jones
dnl Copyright © 2009 Stefano Zacchiroli
dnl Copyright © 2000-2005 Olivier Andrieu
dnl Copyright © 2000-2005 Jean-Christophe Filliâtre
dnl Copyright © 2000-2005 Georges Mariano
dnl
dnl For documentation, please read the ocaml.m4 man page.
AC_DEFUN([AC_PROG_OCAML],
[dnl
# checking for ocamlc
AC_CHECK_TOOL([OCAMLC],[ocamlc],[no])
if test "$OCAMLC" != "no"; then
OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'`
AC_MSG_RESULT([OCaml version is $OCAMLVERSION])
# If OCAMLLIB is set, use it
if test "$OCAMLLIB" = ""; then
OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4`
else
AC_MSG_RESULT([OCAMLLIB previously set; preserving it.])
fi
AC_MSG_RESULT([OCaml library path is $OCAMLLIB])
AC_SUBST([OCAMLVERSION])
AC_SUBST([OCAMLLIB])
# checking for ocamlopt
AC_CHECK_TOOL([OCAMLOPT],[ocamlopt],[no])
OCAMLBEST=byte
if test "$OCAMLOPT" = "no"; then
AC_MSG_WARN([Cannot find ocamlopt; bytecode compilation only.])
else
TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
if test "$TMPVERSION" != "$OCAMLVERSION" ; then
AC_MSG_RESULT([versions differs from ocamlc; ocamlopt discarded.])
OCAMLOPT=no
else
OCAMLBEST=opt
fi
fi
AC_SUBST([OCAMLBEST])
# checking for ocamlc.opt
AC_CHECK_TOOL([OCAMLCDOTOPT],[ocamlc.opt],[no])
if test "$OCAMLCDOTOPT" != "no"; then
TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
if test "$TMPVERSION" != "$OCAMLVERSION" ; then
AC_MSG_RESULT([versions differs from ocamlc; ocamlc.opt discarded.])
else
OCAMLC=$OCAMLCDOTOPT
fi
fi
# checking for ocamlopt.opt
if test "$OCAMLOPT" != "no" ; then
AC_CHECK_TOOL([OCAMLOPTDOTOPT],[ocamlopt.opt],[no])
if test "$OCAMLOPTDOTOPT" != "no"; then
TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
if test "$TMPVERSION" != "$OCAMLVERSION" ; then
AC_MSG_RESULT([version differs from ocamlc; ocamlopt.opt discarded.])
else
OCAMLOPT=$OCAMLOPTDOTOPT
fi
fi
fi
AC_SUBST([OCAMLOPT])
fi
AC_SUBST([OCAMLC])
# checking for ocaml toplevel
AC_CHECK_TOOL([OCAML],[ocaml],[no])
# checking for ocamldep
AC_CHECK_TOOL([OCAMLDEP],[ocamldep],[no])
# checking for ocamlmktop
AC_CHECK_TOOL([OCAMLMKTOP],[ocamlmktop],[no])
# checking for ocamlmklib
AC_CHECK_TOOL([OCAMLMKLIB],[ocamlmklib],[no])
# checking for ocamldoc
AC_CHECK_TOOL([OCAMLDOC],[ocamldoc],[no])
# checking for ocamlbuild
AC_CHECK_TOOL([OCAMLBUILD],[ocamlbuild],[no])
])
AC_DEFUN([AC_PROG_OCAMLLEX],
[dnl
# checking for ocamllex
AC_CHECK_TOOL([OCAMLLEX],[ocamllex],[no])
if test "$OCAMLLEX" != "no"; then
AC_CHECK_TOOL([OCAMLLEXDOTOPT],[ocamllex.opt],[no])
if test "$OCAMLLEXDOTOPT" != "no"; then
OCAMLLEX=$OCAMLLEXDOTOPT
fi
fi
AC_SUBST([OCAMLLEX])
])
AC_DEFUN([AC_PROG_OCAMLYACC],
[dnl
AC_CHECK_TOOL([OCAMLYACC],[ocamlyacc],[no])
AC_SUBST([OCAMLYACC])
])
AC_DEFUN([AC_PROG_CAMLP4],
[dnl
AC_REQUIRE([AC_PROG_OCAML])dnl
# checking for camlp4
AC_CHECK_TOOL([CAMLP4],[camlp4],[no])
if test "$CAMLP4" != "no"; then
TMPVERSION=`$CAMLP4 -v 2>&1| sed -n -e 's|.*version *\(.*\)$|\1|p'`
if test "$TMPVERSION" != "$OCAMLVERSION" ; then
AC_MSG_RESULT([versions differs from ocamlc])
CAMLP4=no
fi
fi
AC_SUBST([CAMLP4])
# checking for companion tools
AC_CHECK_TOOL([CAMLP4BOOT],[camlp4boot],[no])
AC_CHECK_TOOL([CAMLP4O],[camlp4o],[no])
AC_CHECK_TOOL([CAMLP4OF],[camlp4of],[no])
AC_CHECK_TOOL([CAMLP4OOF],[camlp4oof],[no])
AC_CHECK_TOOL([CAMLP4ORF],[camlp4orf],[no])
AC_CHECK_TOOL([CAMLP4PROF],[camlp4prof],[no])
AC_CHECK_TOOL([CAMLP4R],[camlp4r],[no])
AC_CHECK_TOOL([CAMLP4RF],[camlp4rf],[no])
AC_SUBST([CAMLP4BOOT])
AC_SUBST([CAMLP4O])
AC_SUBST([CAMLP4OF])
AC_SUBST([CAMLP4OOF])
AC_SUBST([CAMLP4ORF])
AC_SUBST([CAMLP4PROF])
AC_SUBST([CAMLP4R])
AC_SUBST([CAMLP4RF])
])
AC_DEFUN([AC_PROG_FINDLIB],
[dnl
AC_REQUIRE([AC_PROG_OCAML])dnl
# checking for ocamlfind
AC_CHECK_TOOL([OCAMLFIND],[ocamlfind],[no])
AC_SUBST([OCAMLFIND])
])
dnl Thanks to Jim Meyering for working this next bit out for us.
dnl XXX We should define AS_TR_SH if it's not defined already
dnl (eg. for old autoconf).
AC_DEFUN([AC_CHECK_OCAML_PKG],
[dnl
AC_REQUIRE([AC_PROG_FINDLIB])dnl
AC_MSG_CHECKING([for OCaml findlib package $1])
unset found
unset pkg
found=no
for pkg in $1 $2 ; do
if $OCAMLFIND query $pkg >/dev/null 2>/dev/null; then
AC_MSG_RESULT([found])
AS_TR_SH([OCAML_PKG_$1])=$pkg
found=yes
break
fi
done
if test "$found" = "no" ; then
AC_MSG_RESULT([not found])
AS_TR_SH([OCAML_PKG_$1])=no
fi
AC_SUBST(AS_TR_SH([OCAML_PKG_$1]))
])
AC_DEFUN([AC_CHECK_OCAML_MODULE],
[dnl
AC_MSG_CHECKING([for OCaml module $2])
cat > conftest.ml <&5 2>&5 ; then
found=yes
break
fi
done
if test "$found" ; then
AC_MSG_RESULT([$$1])
else
AC_MSG_RESULT([not found])
$1=no
fi
AC_SUBST([$1])
])
dnl XXX Cross-compiling
AC_DEFUN([AC_CHECK_OCAML_WORD_SIZE],
[dnl
AC_REQUIRE([AC_PROG_OCAML])dnl
AC_MSG_CHECKING([for OCaml compiler word size])
cat > conftest.ml < conftest.ml <
#include
#include
#include
enum {
HELP_OPTION = CHAR_MAX + 1,
DUMP_CONFIG_OPTION,
DUMP_PLUGIN_OPTION,
EXIT_WITH_PARENT_OPTION,
FILTER_OPTION,
KEEPALIVE_OPTION,
LOG_OPTION,
LONG_OPTIONS_OPTION,
MASK_HANDSHAKE_OPTION,
NO_MC_OPTION,
NO_SR_OPTION,
PRINT_URI,
RUN_OPTION,
SELINUX_LABEL_OPTION,
SHORT_OPTIONS_OPTION,
SWAP_OPTION,
TIMEOUT_OPTION,
TLS_OPTION,
TLS_CERTIFICATES_OPTION,
TLS_PSK_OPTION,
TLS_VERIFY_PEER_OPTION,
VSOCK_OPTION,
};
static const char *short_options = "46D:e:fg:i:nop:P:rst:u:U:vV";
static const struct option long_options[] = {
{ "ipv4-only", no_argument, NULL, '4' },
{ "ipv6-only", no_argument, NULL, '6' },
{ "debug", required_argument, NULL, 'D' },
{ "dump-config", no_argument, NULL, DUMP_CONFIG_OPTION },
{ "dump-plugin", no_argument, NULL, DUMP_PLUGIN_OPTION },
{ "exit-with-parent", no_argument, NULL, EXIT_WITH_PARENT_OPTION },
{ "export", required_argument, NULL, 'e' },
{ "export-name", required_argument, NULL, 'e' },
{ "exportname", required_argument, NULL, 'e' },
{ "filter", required_argument, NULL, FILTER_OPTION },
{ "foreground", no_argument, NULL, 'f' },
{ "no-fork", no_argument, NULL, 'f' },
{ "group", required_argument, NULL, 'g' },
{ "help", no_argument, NULL, HELP_OPTION },
{ "ip-addr", required_argument, NULL, 'i' },
{ "ipaddr", required_argument, NULL, 'i' },
{ "keepalive", no_argument, NULL, KEEPALIVE_OPTION },
{ "keep-alive", no_argument, NULL, KEEPALIVE_OPTION },
{ "log", required_argument, NULL, LOG_OPTION },
{ "long-options", no_argument, NULL, LONG_OPTIONS_OPTION },
{ "mask-handshake", required_argument, NULL, MASK_HANDSHAKE_OPTION },
{ "new-style", no_argument, NULL, 'n' },
{ "newstyle", no_argument, NULL, 'n' },
{ "no-mc", no_argument, NULL, NO_MC_OPTION },
{ "no-meta-contexts", no_argument, NULL, NO_MC_OPTION },
{ "no-sr", no_argument, NULL, NO_SR_OPTION },
{ "no-structured-replies", no_argument, NULL, NO_SR_OPTION },
{ "old-style", no_argument, NULL, 'o' },
{ "oldstyle", no_argument, NULL, 'o' },
{ "pid-file", required_argument, NULL, 'P' },
{ "pidfile", required_argument, NULL, 'P' },
{ "print-uri", no_argument, NULL, PRINT_URI },
{ "print-url", no_argument, NULL, PRINT_URI },
{ "port", required_argument, NULL, 'p' },
{ "read-only", no_argument, NULL, 'r' },
{ "readonly", no_argument, NULL, 'r' },
{ "run", required_argument, NULL, RUN_OPTION },
{ "selinux-label", required_argument, NULL, SELINUX_LABEL_OPTION },
{ "short-options", no_argument, NULL, SHORT_OPTIONS_OPTION },
{ "show-uri", no_argument, NULL, PRINT_URI },
{ "show-url", no_argument, NULL, PRINT_URI },
{ "single", no_argument, NULL, 's' },
{ "stdin", no_argument, NULL, 's' },
{ "swap", no_argument, NULL, SWAP_OPTION },
{ "threads", required_argument, NULL, 't' },
{ "timeout", required_argument, NULL, TIMEOUT_OPTION },
{ "time-out", required_argument, NULL, TIMEOUT_OPTION },
{ "tls", required_argument, NULL, TLS_OPTION },
{ "tls-certificates", required_argument, NULL, TLS_CERTIFICATES_OPTION },
{ "tls-psk", required_argument, NULL, TLS_PSK_OPTION },
{ "tls-verify-peer", no_argument, NULL, TLS_VERIFY_PEER_OPTION },
{ "unix", required_argument, NULL, 'U' },
{ "user", required_argument, NULL, 'u' },
{ "verbose", no_argument, NULL, 'v' },
{ "version", no_argument, NULL, 'V' },
{ "vsock", no_argument, NULL, VSOCK_OPTION },
{ NULL },
};
/* Is it a plugin or filter name relative to the plugindir/filterdir? */
static inline bool
is_short_name (const char *filename)
{
const size_t n = strlen (filename);
size_t i;
for (i = 0; i < n; ++i) {
switch (filename[i]) {
case '/': case '\\': /* directory separators */
case ':': case ';': /* path separators */
case ' ':
case '.':
case ',':
case '=': /* nbdkit parameter separator */
return false;
/* non-printable ASCII */
case 127:
return false;
default:
if ((unsigned)filename[i] <= 31)
return false;
}
}
return strstr (filename, DIR_SEPARATOR_STR) == NULL;
}
#endif /* NBDKIT_OPTIONS_H */
nbdkit-1.42.2/server/Makefile.am 0000644 0001750 0001750 00000012117 14771245250 012107 # nbdkit
# Copyright Red Hat
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# * Neither the name of Red Hat nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
include $(top_srcdir)/common-rules.mk
EXTRA_DIST = nbdkit.syms
sbin_PROGRAMS = nbdkit
nbdkit_SOURCES = \
backend.c \
background.c \
captive.c \
connections.c \
crypto.c \
debug.c \
debug-flags.c \
exports.c \
extents.c \
filters.c \
internal.h \
locks.c \
log.c \
log-stderr.c \
log-syslog.c \
main.c \
options.h \
plugins.c \
protocol.c \
protocol-handshake.c \
protocol-handshake-oldstyle.c \
protocol-handshake-newstyle.c \
public.c \
quit.c \
signals.c \
socket-activation.c \
sockets.c \
synopsis.c \
threadlocal.c \
timeout.c \
uri.c \
usergroup.c \
vfprintf.c \
$(top_srcdir)/include/nbdkit-plugin.h \
$(top_srcdir)/include/nbdkit-filter.h \
$(NULL)
if ENABLE_LIBFUZZER
nbdkit_SOURCES += fuzzer.c
endif
nbdkit_CPPFLAGS = \
-Dbindir=\"$(bindir)\" \
-Dlibdir=\"$(libdir)\" \
-Dmandir=\"$(mandir)\" \
-Dplugindir=\"$(plugindir)\" \
-Dfilterdir=\"$(filterdir)\" \
-Dsbindir=\"$(sbindir)\" \
-Dsysconfdir=\"$(sysconfdir)\" \
-I$(top_srcdir)/include \
-I$(top_builddir)/include \
-I$(top_srcdir)/common/include \
-I$(top_srcdir)/common/protocol \
-I$(top_srcdir)/common/replacements \
-I$(top_srcdir)/common/utils \
$(NULL)
nbdkit_CFLAGS = \
$(PTHREAD_CFLAGS) \
$(WARNINGS_CFLAGS) \
$(GNUTLS_CFLAGS) \
$(LIBSELINUX_CFLAGS) \
$(VALGRIND_CFLAGS) \
$(NULL)
nbdkit_LDADD = \
$(GNUTLS_LIBS) \
$(LIBSELINUX_LIBS) \
$(DL_LIBS) \
$(RT_LIBS) \
$(top_builddir)/common/protocol/libprotocol.la \
$(top_builddir)/common/utils/libutils.la \
$(top_builddir)/common/replacements/libcompat.la \
-lm \
$(NULL)
nbdkit_LDFLAGS = \
$(PTHREAD_LIBS) \
$(DL_LDFLAGS) \
$(NULL)
EXTRA_nbdkit_DEPENDENCIES = nbdkit.syms
if USE_LINKER_SCRIPT
nbdkit_LDFLAGS += -Wl,--version-script=$(srcdir)/nbdkit.syms
endif
if IS_WINDOWS
# On Windows, generate an import library so that plugins can link
# against the executable.
# https://stackoverflow.com/a/18147774
# https://sourceforge.net/p/mingw/mailman/mingw-users/thread/43694A03.2050503%40cox.net/
# https://stackoverflow.com/questions/20007973/how-do-i-generate-an-import-lib-for-an-exe-using-automake-autoconf-libtool/20363801#20363801
lib_LIBRARIES = libnbdkit.a
libnbdkit.a: nbdkit$(EXEEXT) nbdkit.def
$(LIBTOOL) --mode=execute \
$(DLLTOOL) -v $< -D nbdkit.exe -d nbdkit.def -l $@
nbdkit.def: nbdkit.syms
rm -f $@ $@-t
echo '; Generated from $<' > $@-t
echo 'EXPORTS' >> $@-t
$(SED) -n -e 's/.*\(nbdkit_[a-z0-9_]*\);.*/\t\1/p' < $< >> $@-t
mv $@-t $@
chmod 0444 $@
# Annoyingly this is required for make dist.
libnbdkit_a_SOURCES =
endif
# synopsis.c is generated from docs/synopsis.txt where it is also
# used to generate the man page.
BUILT_SOURCES = synopsis.c
CLEANFILES += synopsis.c
synopsis.c: $(top_srcdir)/docs/synopsis.txt Makefile.am
rm -f $@ $@-t
echo "/* DO NOT EDIT! Generated from $< */" > $@-t
echo >> $@-t
echo "const char *synopsis =" >> $@-t
$(SED) -e 's/"/\\"/g' -e 's/\(.*\)/ "\1\\n"/g' $< >> $@-t
echo " ;" >> $@-t
mv $@-t $@
# pkg-config / pkgconf
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = nbdkit.pc
# Unit testing
TESTS = test-public
check_PROGRAMS = test-public
test_public_SOURCES = \
test-public.c \
public.c \
exports.c \
extents.c \
$(NULL)
test_public_CPPFLAGS = \
-I$(top_srcdir)/include \
-I$(top_builddir)/include \
-I$(top_srcdir)/common/include \
-I$(top_srcdir)/common/protocol \
-I$(top_srcdir)/common/replacements \
-I$(top_srcdir)/common/utils \
$(NULL)
test_public_CFLAGS = \
$(PTHREAD_CFLAGS) \
$(WARNINGS_CFLAGS) \
$(VALGRIND_CFLAGS) \
$(NULL)
test_public_LDFLAGS = \
$(PTHREAD_LIBS) \
$(NULL)
test_public_LDADD = \
$(top_builddir)/common/utils/libutils.la \
$(top_builddir)/common/replacements/libcompat.la \
-lm \
$(NULL)
nbdkit-1.42.2/server/Makefile.in 0000644 0001750 0001750 00000362500 14771245450 012126 # Makefile.in generated by automake 1.16.5 from Makefile.am.
# @configure_input@
# Copyright (C) 1994-2021 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
@SET_MAKE@
# nbdkit
# Copyright Red Hat
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# * Neither the name of Red Hat nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
# nbdkit
# Copyright Red Hat
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# * Neither the name of Red Hat nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
VPATH = @srcdir@
am__is_gnu_make = { \
if test -z '$(MAKELEVEL)'; then \
false; \
elif test -n '$(MAKE_HOST)'; then \
true; \
elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
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else \
false; \
fi; \
}
am__make_running_with_option = \
case $${target_option-} in \
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if $(am__is_gnu_make); then \
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am__make_dryrun = (target_option=n; $(am__make_running_with_option))
am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
pkgdatadir = $(datadir)/@PACKAGE@
pkgincludedir = $(includedir)/@PACKAGE@
pkglibdir = $(libdir)/@PACKAGE@
pkglibexecdir = $(libexecdir)/@PACKAGE@
am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
install_sh_DATA = $(install_sh) -c -m 644
install_sh_PROGRAM = $(install_sh) -c
install_sh_SCRIPT = $(install_sh) -c
INSTALL_HEADER = $(INSTALL_DATA)
transform = $(program_transform_name)
NORMAL_INSTALL = :
PRE_INSTALL = :
POST_INSTALL = :
NORMAL_UNINSTALL = :
PRE_UNINSTALL = :
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build_triplet = @build@
host_triplet = @host@
sbin_PROGRAMS = nbdkit$(EXEEXT)
@ENABLE_LIBFUZZER_TRUE@am__append_1 = fuzzer.c
@USE_LINKER_SCRIPT_TRUE@am__append_2 = -Wl,--version-script=$(srcdir)/nbdkit.syms
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am__aclocal_m4_deps = $(top_srcdir)/m4/ax_pthread.m4 \
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CONFIG_HEADER = $(top_builddir)/config.h
CONFIG_CLEAN_FILES = nbdkit.pc
CONFIG_CLEAN_VPATH_FILES =
am__installdirs = "$(DESTDIR)$(sbindir)" "$(DESTDIR)$(libdir)" \
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am__base_list = \
sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
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am__uninstall_files_from_dir = { \
test -z "$$files" \
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LIBRARIES = $(lib_LIBRARIES)
ARFLAGS = cru
AM_V_AR = $(am__v_AR_@AM_V@)
am__v_AR_ = $(am__v_AR_@AM_DEFAULT_V@)
am__v_AR_0 = @echo " AR " $@;
am__v_AR_1 =
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am_libnbdkit_a_OBJECTS =
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am__nbdkit_SOURCES_DIST = backend.c background.c captive.c \
connections.c crypto.c debug.c debug-flags.c exports.c \
extents.c filters.c internal.h locks.c log.c log-stderr.c \
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non_lang_plugins = @non_lang_plugins@
oldincludedir = @oldincludedir@
pdfdir = @pdfdir@
plugins = @plugins@
prefix = @prefix@
program_transform_name = @program_transform_name@
psdir = @psdir@
runstatedir = @runstatedir@
sbindir = @sbindir@
sharedstatedir = @sharedstatedir@
srcdir = @srcdir@
sysconfdir = @sysconfdir@
target_alias = @target_alias@
top_build_prefix = @top_build_prefix@
top_builddir = @top_builddir@
top_srcdir = @top_srcdir@
# Convenient list terminator
NULL =
plugindir = $(libdir)/nbdkit/plugins
filterdir = $(libdir)/nbdkit/filters
CLEANFILES = *~ *.cmi *.cmx *.cmxa *.so *.dll synopsis.c
EXTRA_DIST = nbdkit.syms
nbdkit_SOURCES = backend.c background.c captive.c connections.c \
crypto.c debug.c debug-flags.c exports.c extents.c filters.c \
internal.h locks.c log.c log-stderr.c log-syslog.c main.c \
options.h plugins.c protocol.c protocol-handshake.c \
protocol-handshake-oldstyle.c protocol-handshake-newstyle.c \
public.c quit.c signals.c socket-activation.c sockets.c \
synopsis.c threadlocal.c timeout.c uri.c usergroup.c \
vfprintf.c $(top_srcdir)/include/nbdkit-plugin.h \
$(top_srcdir)/include/nbdkit-filter.h $(NULL) $(am__append_1)
nbdkit_CPPFLAGS = \
-Dbindir=\"$(bindir)\" \
-Dlibdir=\"$(libdir)\" \
-Dmandir=\"$(mandir)\" \
-Dplugindir=\"$(plugindir)\" \
-Dfilterdir=\"$(filterdir)\" \
-Dsbindir=\"$(sbindir)\" \
-Dsysconfdir=\"$(sysconfdir)\" \
-I$(top_srcdir)/include \
-I$(top_builddir)/include \
-I$(top_srcdir)/common/include \
-I$(top_srcdir)/common/protocol \
-I$(top_srcdir)/common/replacements \
-I$(top_srcdir)/common/utils \
$(NULL)
nbdkit_CFLAGS = \
$(PTHREAD_CFLAGS) \
$(WARNINGS_CFLAGS) \
$(GNUTLS_CFLAGS) \
$(LIBSELINUX_CFLAGS) \
$(VALGRIND_CFLAGS) \
$(NULL)
nbdkit_LDADD = \
$(GNUTLS_LIBS) \
$(LIBSELINUX_LIBS) \
$(DL_LIBS) \
$(RT_LIBS) \
$(top_builddir)/common/protocol/libprotocol.la \
$(top_builddir)/common/utils/libutils.la \
$(top_builddir)/common/replacements/libcompat.la \
-lm \
$(NULL)
nbdkit_LDFLAGS = $(PTHREAD_LIBS) $(DL_LDFLAGS) $(NULL) $(am__append_2)
EXTRA_nbdkit_DEPENDENCIES = nbdkit.syms
# On Windows, generate an import library so that plugins can link
# against the executable.
# https://stackoverflow.com/a/18147774
# https://sourceforge.net/p/mingw/mailman/mingw-users/thread/43694A03.2050503%40cox.net/
# https://stackoverflow.com/questions/20007973/how-do-i-generate-an-import-lib-for-an-exe-using-automake-autoconf-libtool/20363801#20363801
@IS_WINDOWS_TRUE@lib_LIBRARIES = libnbdkit.a
# Annoyingly this is required for make dist.
@IS_WINDOWS_TRUE@libnbdkit_a_SOURCES =
# synopsis.c is generated from docs/synopsis.txt where it is also
# used to generate the man page.
BUILT_SOURCES = synopsis.c
# pkg-config / pkgconf
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = nbdkit.pc
test_public_SOURCES = \
test-public.c \
public.c \
exports.c \
extents.c \
$(NULL)
test_public_CPPFLAGS = \
-I$(top_srcdir)/include \
-I$(top_builddir)/include \
-I$(top_srcdir)/common/include \
-I$(top_srcdir)/common/protocol \
-I$(top_srcdir)/common/replacements \
-I$(top_srcdir)/common/utils \
$(NULL)
test_public_CFLAGS = \
$(PTHREAD_CFLAGS) \
$(WARNINGS_CFLAGS) \
$(VALGRIND_CFLAGS) \
$(NULL)
test_public_LDFLAGS = \
$(PTHREAD_LIBS) \
$(NULL)
test_public_LDADD = \
$(top_builddir)/common/utils/libutils.la \
$(top_builddir)/common/replacements/libcompat.la \
-lm \
$(NULL)
all: $(BUILT_SOURCES)
$(MAKE) $(AM_MAKEFLAGS) all-am
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$(am__cd) $(top_srcdir) && \
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clean-checkPROGRAMS:
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echo " rm -f" $$list; \
rm -f $$list || exit $$?; \
test -n "$(EXEEXT)" || exit 0; \
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$(MKDIR_P) "$(DESTDIR)$(sbindir)" || exit 1; \
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for p in $$list; do echo "$$p $$p"; done | \
sed 's/$(EXEEXT)$$//' | \
while read p p1; do if test -f $$p \
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sed 'N;N;N;s,\n, ,g' | \
$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/nbdkit-socket-activation.Po@am__quote@ # am--include-marker
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-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
clean-generic:
-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
distclean-generic:
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
maintainer-clean-generic:
@echo "This command is intended for maintainers to use"
@echo "it deletes files that may require special tools to rebuild."
-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
clean: clean-am
clean-am: clean-checkPROGRAMS clean-generic clean-libLIBRARIES \
clean-libtool clean-sbinPROGRAMS mostlyclean-am
distclean: distclean-am
-rm -f ./$(DEPDIR)/nbdkit-backend.Po
-rm -f ./$(DEPDIR)/nbdkit-background.Po
-rm -f ./$(DEPDIR)/nbdkit-captive.Po
-rm -f ./$(DEPDIR)/nbdkit-connections.Po
-rm -f ./$(DEPDIR)/nbdkit-crypto.Po
-rm -f ./$(DEPDIR)/nbdkit-debug-flags.Po
-rm -f ./$(DEPDIR)/nbdkit-debug.Po
-rm -f ./$(DEPDIR)/nbdkit-exports.Po
-rm -f ./$(DEPDIR)/nbdkit-extents.Po
-rm -f ./$(DEPDIR)/nbdkit-filters.Po
-rm -f ./$(DEPDIR)/nbdkit-fuzzer.Po
-rm -f ./$(DEPDIR)/nbdkit-locks.Po
-rm -f ./$(DEPDIR)/nbdkit-log-stderr.Po
-rm -f ./$(DEPDIR)/nbdkit-log-syslog.Po
-rm -f ./$(DEPDIR)/nbdkit-log.Po
-rm -f ./$(DEPDIR)/nbdkit-main.Po
-rm -f ./$(DEPDIR)/nbdkit-plugins.Po
-rm -f ./$(DEPDIR)/nbdkit-protocol-handshake-newstyle.Po
-rm -f ./$(DEPDIR)/nbdkit-protocol-handshake-oldstyle.Po
-rm -f ./$(DEPDIR)/nbdkit-protocol-handshake.Po
-rm -f ./$(DEPDIR)/nbdkit-protocol.Po
-rm -f ./$(DEPDIR)/nbdkit-public.Po
-rm -f ./$(DEPDIR)/nbdkit-quit.Po
-rm -f ./$(DEPDIR)/nbdkit-signals.Po
-rm -f ./$(DEPDIR)/nbdkit-socket-activation.Po
-rm -f ./$(DEPDIR)/nbdkit-sockets.Po
-rm -f ./$(DEPDIR)/nbdkit-synopsis.Po
-rm -f ./$(DEPDIR)/nbdkit-threadlocal.Po
-rm -f ./$(DEPDIR)/nbdkit-timeout.Po
-rm -f ./$(DEPDIR)/nbdkit-uri.Po
-rm -f ./$(DEPDIR)/nbdkit-usergroup.Po
-rm -f ./$(DEPDIR)/nbdkit-vfprintf.Po
-rm -f ./$(DEPDIR)/test_public-exports.Po
-rm -f ./$(DEPDIR)/test_public-extents.Po
-rm -f ./$(DEPDIR)/test_public-public.Po
-rm -f ./$(DEPDIR)/test_public-test-public.Po
-rm -f Makefile
distclean-am: clean-am distclean-compile distclean-generic \
distclean-tags
dvi: dvi-am
dvi-am:
html: html-am
html-am:
info: info-am
info-am:
install-data-am: install-pkgconfigDATA
install-dvi: install-dvi-am
install-dvi-am:
install-exec-am: install-libLIBRARIES install-sbinPROGRAMS
install-html: install-html-am
install-html-am:
install-info: install-info-am
install-info-am:
install-man:
install-pdf: install-pdf-am
install-pdf-am:
install-ps: install-ps-am
install-ps-am:
installcheck-am:
maintainer-clean: maintainer-clean-am
-rm -f ./$(DEPDIR)/nbdkit-backend.Po
-rm -f ./$(DEPDIR)/nbdkit-background.Po
-rm -f ./$(DEPDIR)/nbdkit-captive.Po
-rm -f ./$(DEPDIR)/nbdkit-connections.Po
-rm -f ./$(DEPDIR)/nbdkit-crypto.Po
-rm -f ./$(DEPDIR)/nbdkit-debug-flags.Po
-rm -f ./$(DEPDIR)/nbdkit-debug.Po
-rm -f ./$(DEPDIR)/nbdkit-exports.Po
-rm -f ./$(DEPDIR)/nbdkit-extents.Po
-rm -f ./$(DEPDIR)/nbdkit-filters.Po
-rm -f ./$(DEPDIR)/nbdkit-fuzzer.Po
-rm -f ./$(DEPDIR)/nbdkit-locks.Po
-rm -f ./$(DEPDIR)/nbdkit-log-stderr.Po
-rm -f ./$(DEPDIR)/nbdkit-log-syslog.Po
-rm -f ./$(DEPDIR)/nbdkit-log.Po
-rm -f ./$(DEPDIR)/nbdkit-main.Po
-rm -f ./$(DEPDIR)/nbdkit-plugins.Po
-rm -f ./$(DEPDIR)/nbdkit-protocol-handshake-newstyle.Po
-rm -f ./$(DEPDIR)/nbdkit-protocol-handshake-oldstyle.Po
-rm -f ./$(DEPDIR)/nbdkit-protocol-handshake.Po
-rm -f ./$(DEPDIR)/nbdkit-protocol.Po
-rm -f ./$(DEPDIR)/nbdkit-public.Po
-rm -f ./$(DEPDIR)/nbdkit-quit.Po
-rm -f ./$(DEPDIR)/nbdkit-signals.Po
-rm -f ./$(DEPDIR)/nbdkit-socket-activation.Po
-rm -f ./$(DEPDIR)/nbdkit-sockets.Po
-rm -f ./$(DEPDIR)/nbdkit-synopsis.Po
-rm -f ./$(DEPDIR)/nbdkit-threadlocal.Po
-rm -f ./$(DEPDIR)/nbdkit-timeout.Po
-rm -f ./$(DEPDIR)/nbdkit-uri.Po
-rm -f ./$(DEPDIR)/nbdkit-usergroup.Po
-rm -f ./$(DEPDIR)/nbdkit-vfprintf.Po
-rm -f ./$(DEPDIR)/test_public-exports.Po
-rm -f ./$(DEPDIR)/test_public-extents.Po
-rm -f ./$(DEPDIR)/test_public-public.Po
-rm -f ./$(DEPDIR)/test_public-test-public.Po
-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic
mostlyclean: mostlyclean-am
mostlyclean-am: mostlyclean-compile mostlyclean-generic \
mostlyclean-libtool
pdf: pdf-am
pdf-am:
ps: ps-am
ps-am:
uninstall-am: uninstall-libLIBRARIES uninstall-pkgconfigDATA \
uninstall-sbinPROGRAMS
.MAKE: all check check-am install install-am install-exec \
install-strip
.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \
check-am clean clean-checkPROGRAMS clean-generic \
clean-libLIBRARIES clean-libtool clean-sbinPROGRAMS \
cscopelist-am ctags ctags-am distclean distclean-compile \
distclean-generic distclean-libtool distclean-tags distdir dvi \
dvi-am html html-am info info-am install install-am \
install-data install-data-am install-dvi install-dvi-am \
install-exec install-exec-am install-html install-html-am \
install-info install-info-am install-libLIBRARIES install-man \
install-pdf install-pdf-am install-pkgconfigDATA install-ps \
install-ps-am install-sbinPROGRAMS install-strip installcheck \
installcheck-am installdirs maintainer-clean \
maintainer-clean-generic mostlyclean mostlyclean-compile \
mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
recheck tags tags-am uninstall uninstall-am \
uninstall-libLIBRARIES uninstall-pkgconfigDATA \
uninstall-sbinPROGRAMS
.PRECIOUS: Makefile
@IS_WINDOWS_TRUE@libnbdkit.a: nbdkit$(EXEEXT) nbdkit.def
@IS_WINDOWS_TRUE@ $(LIBTOOL) --mode=execute \
@IS_WINDOWS_TRUE@ $(DLLTOOL) -v $< -D nbdkit.exe -d nbdkit.def -l $@
@IS_WINDOWS_TRUE@nbdkit.def: nbdkit.syms
@IS_WINDOWS_TRUE@ rm -f $@ $@-t
@IS_WINDOWS_TRUE@ echo '; Generated from $<' > $@-t
@IS_WINDOWS_TRUE@ echo 'EXPORTS' >> $@-t
@IS_WINDOWS_TRUE@ $(SED) -n -e 's/.*\(nbdkit_[a-z0-9_]*\);.*/\t\1/p' < $< >> $@-t
@IS_WINDOWS_TRUE@ mv $@-t $@
@IS_WINDOWS_TRUE@ chmod 0444 $@
synopsis.c: $(top_srcdir)/docs/synopsis.txt Makefile.am
rm -f $@ $@-t
echo "/* DO NOT EDIT! Generated from $< */" > $@-t
echo >> $@-t
echo "const char *synopsis =" >> $@-t
$(SED) -e 's/"/\\"/g' -e 's/\(.*\)/ "\1\\n"/g' $< >> $@-t
echo " ;" >> $@-t
mv $@-t $@
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:
nbdkit-1.42.2/server/nbdkit.pc.in 0000644 0001750 0001750 00000003616 14534316443 012263 # nbdkit
# Copyright Red Hat
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# * Neither the name of Red Hat nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
plugindir=@libdir@/nbdkit/plugins
filterdir=@libdir@/nbdkit/filters
Name: @PACKAGE_NAME@
Version: @PACKAGE_VERSION@
Description: A toolkit for creating NBD servers
Requires:
Cflags:
# There is no library that NBD plugins have to be linked against.
# All symbols like 'nbdkit_error' are provided by the main nbdkit
# server binary when the plugin is loaded. So this is empty.
Libs:
nbdkit-1.42.2/server/backend.c 0000644 0001750 0001750 00000055172 14534316443 011616 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include "ascii-ctype.h"
#include "minmax.h"
#include "internal.h"
/* Helpers for registering a new backend. */
/* Use:
* -D nbdkit.backend.controlpath=0 to suppress control path debugging.
* -D nbdkit.backend.datapath=0 to suppress data path debugging.
*/
NBDKIT_DLL_PUBLIC int nbdkit_debug_backend_controlpath = 1;
NBDKIT_DLL_PUBLIC int nbdkit_debug_backend_datapath = 1;
#define controlpath_debug(fs, ...) \
do { \
if (nbdkit_debug_backend_controlpath) debug ((fs), ##__VA_ARGS__); \
} while (0)
#define datapath_debug(fs, ...) \
do { \
if (nbdkit_debug_backend_datapath) debug ((fs), ##__VA_ARGS__); \
} while (0)
void
backend_init (struct backend *b, struct backend *next, size_t index,
const char *filename, void *dl, const char *type)
{
b->magic = BACKEND_MAGIC;
b->next = next;
b->i = index;
b->type = type;
b->filename = strdup (filename);
if (b->filename == NULL) {
perror ("strdup");
exit (EXIT_FAILURE);
}
b->dl = dl;
debug ("registering %s %s", type, filename);
}
void
backend_load (struct backend *b, const char *name, void (*load) (void))
{
size_t i, len;
/* name is required. */
if (name == NULL) {
fprintf (stderr, "%s: %s: %s must have a .name field\n",
program_name, b->filename, b->type);
exit (EXIT_FAILURE);
}
len = strlen (name);
if (len == 0) {
fprintf (stderr, "%s: %s: %s.name field must not be empty\n",
program_name, b->filename, b->type);
exit (EXIT_FAILURE);
}
if (! ascii_isalnum (*name)) {
fprintf (stderr,
"%s: %s: %s.name ('%s') field must begin with an "
"ASCII alphanumeric character\n",
program_name, b->filename, b->type, name);
exit (EXIT_FAILURE);
}
for (i = 1; i < len; ++i) {
unsigned char c = name[i];
if (! ascii_isalnum (c) && c != '-') {
fprintf (stderr,
"%s: %s: %s.name ('%s') field must contain only "
"ASCII alphanumeric or dash characters\n",
program_name, b->filename, b->type, name);
exit (EXIT_FAILURE);
}
}
/* Copy the module's name into local storage, so that name
* survives past unload.
*/
b->name = strdup (name);
if (b->name == NULL) {
perror ("strdup");
exit (EXIT_FAILURE);
}
debug ("registered %s %s (name %s)", b->type, b->filename, b->name);
/* Apply debug flags before calling load. */
apply_debug_flags (b->dl, name);
/* Call the on-load callback if it exists. */
controlpath_debug ("%s: load", name);
if (load)
load ();
}
void
backend_unload (struct backend *b, void (*unload) (void))
{
/* Acquiring this lock prevents any other backend callbacks from running
* simultaneously.
*/
lock_unload ();
controlpath_debug ("%s: unload %s", b->name, b->type);
if (unload)
unload ();
if (DO_DLCLOSE)
dlclose (b->dl);
free (b->filename);
unlock_unload ();
free (b->name);
}
int
backend_list_exports (struct backend *b, int readonly,
struct nbdkit_exports *exports)
{
GET_CONN;
size_t count;
controlpath_debug ("%s: list_exports readonly=%d tls=%d",
b->name, readonly, conn->using_tls);
assert (conn->top_context == NULL);
if (b->list_exports (b, readonly, conn->using_tls, exports) == -1 ||
exports_resolve_default (exports, b, readonly) == -1) {
controlpath_debug ("%s: list_exports failed", b->name);
return -1;
}
count = nbdkit_exports_count (exports);
controlpath_debug ("%s: list_exports returned %zu names", b->name, count);
return 0;
}
const char *
backend_default_export (struct backend *b, int readonly)
{
GET_CONN;
const char *s;
controlpath_debug ("%s: default_export readonly=%d tls=%d",
b->name, readonly, conn->using_tls);
if (conn->default_exportname[b->i] == NULL) {
assert (conn->top_context == NULL);
s = b->default_export (b, readonly, conn->using_tls);
/* Ignore over-length strings. XXX Also ignore non-UTF8? */
if (s && strnlen (s, NBD_MAX_STRING + 1) > NBD_MAX_STRING) {
controlpath_debug ("%s: default_export: ignoring invalid string",
b->name);
s = NULL;
}
if (s) {
/* Best effort caching */
conn->default_exportname[b->i] = strdup (s);
if (conn->default_exportname[b->i] == NULL)
return s;
}
}
return conn->default_exportname[b->i];
}
static struct nbdkit_next_ops next_ops = {
.prepare = backend_prepare,
.finalize = backend_finalize,
.export_description = backend_export_description,
.get_size = backend_get_size,
.block_size = backend_block_size,
.can_write = backend_can_write,
.can_flush = backend_can_flush,
.is_rotational = backend_is_rotational,
.can_trim = backend_can_trim,
.can_zero = backend_can_zero,
.can_fast_zero = backend_can_fast_zero,
.can_extents = backend_can_extents,
.can_fua = backend_can_fua,
.can_multi_conn = backend_can_multi_conn,
.can_cache = backend_can_cache,
.pread = backend_pread,
.pwrite = backend_pwrite,
.flush = backend_flush,
.trim = backend_trim,
.zero = backend_zero,
.extents = backend_extents,
.cache = backend_cache,
};
struct context *
backend_open (struct backend *b, int readonly, const char *exportname,
int shared)
{
struct connection *conn = threadlocal_get_conn ();
bool using_tls;
struct context *c;
if (shared)
using_tls = tls == 2;
else {
assert (conn);
using_tls = conn->using_tls;
}
c = calloc (1, sizeof *c);
if (c == NULL) {
nbdkit_error ("malloc: %m");
return NULL;
}
c->magic = CONTEXT_MAGIC;
PUSH_CONTEXT_FOR_SCOPE (c);
controlpath_debug ("%s: open readonly=%d exportname=\"%s\" tls=%d",
b->name, readonly, exportname, using_tls);
c->next = next_ops;
c->handle = NULL;
c->b = b;
c->c_next = NULL;
c->conn = shared ? NULL : conn;
c->state = 0;
c->exportsize = -1;
c->minimum_block_size = c->preferred_block_size = c->maximum_block_size = -1;
c->can_write = readonly ? 0 : -1;
c->can_flush = -1;
c->is_rotational = -1;
c->can_trim = -1;
c->can_zero = -1;
c->can_fast_zero = -1;
c->can_fua = -1;
c->can_multi_conn = -1;
c->can_extents = -1;
c->can_cache = -1;
/* Determine the canonical name for default export */
if (!*exportname && c->conn) {
exportname = backend_default_export (b, readonly);
if (exportname == NULL) {
nbdkit_error ("default export (\"\") not permitted");
free (c);
return NULL;
}
}
/* Most filters will call next_open first, resulting in
* inner-to-outer ordering.
*/
c->handle = b->open (c, readonly, exportname, using_tls);
controlpath_debug ("%s: open returned handle %p", b->name, c->handle);
if (c->handle == NULL) {
if (b->i && c->c_next != NULL)
backend_close (c->c_next);
free (c);
return NULL;
}
c->state |= HANDLE_OPEN;
return c;
}
int
backend_prepare (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle);
assert (c->state & HANDLE_OPEN);
if (c->state & HANDLE_CONNECTED)
return 0;
/* Call these in order starting from the filter closest to the
* plugin, similar to typical .open order. But remember that
* a filter may skip opening its backend.
*/
if (b->i && c->c_next != NULL && backend_prepare (c->c_next) == -1)
return -1;
controlpath_debug ("%s: prepare readonly=%d", b->name, c->can_write == 0);
if (b->prepare (c, c->can_write == 0) == -1)
return -1;
c->state |= HANDLE_CONNECTED;
return 0;
}
int
backend_finalize (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
assert (b->magic == BACKEND_MAGIC);
/* Call these in reverse order to .prepare above, starting from the
* filter furthest away from the plugin, and matching .close order.
*/
/* Once finalize fails, we can do nothing further on this connection */
if (c->state & HANDLE_FAILED)
return -1;
if (c->state & HANDLE_CONNECTED) {
assert (c->state & HANDLE_OPEN && c->handle);
controlpath_debug ("%s: finalize", b->name);
if (b->finalize (c) == -1) {
c->state |= HANDLE_FAILED;
return -1;
}
}
if (b->i && c->c_next != NULL)
return backend_finalize (c->c_next);
return 0;
}
void
backend_close (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
struct context *c_next = c->c_next;
/* outer-to-inner order, opposite .open */
assert (b->magic == BACKEND_MAGIC);
assert (c->handle);
assert (c->state & HANDLE_OPEN);
controlpath_debug ("%s: close", b->name);
b->close (c);
free (c);
if (c_next != NULL)
backend_close (c_next);
}
bool
backend_valid_range (struct context *c, uint64_t offset, uint32_t count)
{
assert (c->exportsize <= INT64_MAX); /* Guaranteed by negotiation phase */
return count > 0 && offset <= c->exportsize &&
offset + count <= c->exportsize;
}
/* Wrappers for all callbacks in a filter's struct nbdkit_next_ops. */
const char *
backend_export_description (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
const char *s;
assert (b->magic == BACKEND_MAGIC);
controlpath_debug ("%s: export_description", b->name);
assert (c->handle && (c->state & HANDLE_CONNECTED));
/* Caching is not useful for this value. */
s = b->export_description (c);
/* Ignore over-length strings. XXX Also ignore non-UTF8? */
if (s && strnlen (s, NBD_MAX_STRING + 1) > NBD_MAX_STRING) {
controlpath_debug ("%s: export_description: ignoring invalid string",
b->name);
s = NULL;
}
return s;
}
int64_t
backend_get_size (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->exportsize == -1) {
controlpath_debug ("%s: get_size", b->name);
c->exportsize = b->get_size (c);
}
return c->exportsize;
}
int
backend_block_size (struct context *c,
uint32_t *minimum, uint32_t *preferred, uint32_t *maximum)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->minimum_block_size != -1) {
*minimum = c->minimum_block_size;
*preferred = c->preferred_block_size;
*maximum = c->maximum_block_size;
return 0;
}
else {
controlpath_debug ("%s: block_size", b->name);
r = b->block_size (c, minimum, preferred, maximum);
if (r == 0) {
c->minimum_block_size = *minimum;
c->preferred_block_size = *preferred;
c->maximum_block_size = *maximum;
}
return r;
}
}
int
backend_can_write (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->can_write == -1) {
controlpath_debug ("%s: can_write", b->name);
c->can_write = b->can_write (c);
}
return c->can_write;
}
int
backend_can_flush (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->can_flush == -1) {
controlpath_debug ("%s: can_flush", b->name);
c->can_flush = b->can_flush (c);
}
return c->can_flush;
}
int
backend_is_rotational (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->is_rotational == -1) {
controlpath_debug ("%s: is_rotational", b->name);
c->is_rotational = b->is_rotational (c);
}
return c->is_rotational;
}
int
backend_can_trim (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->can_trim == -1) {
controlpath_debug ("%s: can_trim", b->name);
r = backend_can_write (c);
if (r != 1) {
c->can_trim = 0;
return r;
}
c->can_trim = b->can_trim (c);
}
return c->can_trim;
}
int
backend_can_zero (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->can_zero == -1) {
controlpath_debug ("%s: can_zero", b->name);
r = backend_can_write (c);
if (r != 1) {
c->can_zero = NBDKIT_ZERO_NONE;
return r; /* Relies on 0 == NBDKIT_ZERO_NONE */
}
c->can_zero = b->can_zero (c);
}
return c->can_zero;
}
int
backend_can_fast_zero (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->can_fast_zero == -1) {
controlpath_debug ("%s: can_fast_zero", b->name);
r = backend_can_zero (c);
if (r < NBDKIT_ZERO_EMULATE) {
c->can_fast_zero = 0;
return r; /* Relies on 0 == NBDKIT_ZERO_NONE */
}
c->can_fast_zero = b->can_fast_zero (c);
}
return c->can_fast_zero;
}
int
backend_can_extents (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->can_extents == -1) {
controlpath_debug ("%s: can_extents", b->name);
c->can_extents = b->can_extents (c);
}
return c->can_extents;
}
int
backend_can_fua (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->can_fua == -1) {
controlpath_debug ("%s: can_fua", b->name);
r = backend_can_write (c);
if (r != 1) {
c->can_fua = NBDKIT_FUA_NONE;
return r; /* Relies on 0 == NBDKIT_FUA_NONE */
}
c->can_fua = b->can_fua (c);
}
return c->can_fua;
}
int
backend_can_multi_conn (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->can_multi_conn == -1) {
controlpath_debug ("%s: can_multi_conn", b->name);
c->can_multi_conn = b->can_multi_conn (c);
}
return c->can_multi_conn;
}
int
backend_can_cache (struct context *c)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
if (c->can_cache == -1) {
controlpath_debug ("%s: can_cache", b->name);
c->can_cache = b->can_cache (c);
}
return c->can_cache;
}
int
backend_pread (struct context *c,
void *buf, uint32_t count, uint64_t offset,
uint32_t flags, int *err)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
assert (backend_valid_range (c, offset, count));
assert (flags == 0);
datapath_debug ("%s: pread count=%" PRIu32 " offset=%" PRIu64,
b->name, count, offset);
r = b->pread (c, buf, count, offset, flags, err);
if (r == -1)
assert (*err);
return r;
}
int
backend_pwrite (struct context *c,
const void *buf, uint32_t count, uint64_t offset,
uint32_t flags, int *err)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
bool fua = !!(flags & NBDKIT_FLAG_FUA);
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
assert (c->can_write == 1);
assert (backend_valid_range (c, offset, count));
assert (!(flags & ~NBDKIT_FLAG_FUA));
if (fua)
assert (c->can_fua > NBDKIT_FUA_NONE);
datapath_debug ("%s: pwrite count=%" PRIu32 " offset=%" PRIu64 " fua=%d",
b->name, count, offset, fua);
r = b->pwrite (c, buf, count, offset, flags, err);
if (r == -1)
assert (*err);
return r;
}
int
backend_flush (struct context *c,
uint32_t flags, int *err)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
assert (c->can_flush == 1);
assert (flags == 0);
datapath_debug ("%s: flush", b->name);
r = b->flush (c, flags, err);
if (r == -1)
assert (*err);
return r;
}
int
backend_trim (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags,
int *err)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
bool fua = !!(flags & NBDKIT_FLAG_FUA);
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
assert (c->can_write == 1);
assert (c->can_trim == 1);
assert (backend_valid_range (c, offset, count));
assert (!(flags & ~NBDKIT_FLAG_FUA));
if (fua)
assert (c->can_fua > NBDKIT_FUA_NONE);
datapath_debug ("%s: trim count=%" PRIu32 " offset=%" PRIu64 " fua=%d",
b->name, count, offset, fua);
r = b->trim (c, count, offset, flags, err);
if (r == -1)
assert (*err);
return r;
}
int
backend_zero (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags,
int *err)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
bool fua = !!(flags & NBDKIT_FLAG_FUA);
bool fast = !!(flags & NBDKIT_FLAG_FAST_ZERO);
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
assert (c->can_write == 1);
assert (c->can_zero > NBDKIT_ZERO_NONE);
assert (backend_valid_range (c, offset, count));
assert (!(flags & ~(NBDKIT_FLAG_MAY_TRIM | NBDKIT_FLAG_FUA |
NBDKIT_FLAG_FAST_ZERO)));
if (fua)
assert (c->can_fua > NBDKIT_FUA_NONE);
if (fast)
assert (c->can_fast_zero == 1);
datapath_debug ("%s: zero count=%" PRIu32 " offset=%" PRIu64
" may_trim=%d fua=%d fast=%d",
b->name, count, offset,
!!(flags & NBDKIT_FLAG_MAY_TRIM), fua, fast);
if (c->can_zero == NBDKIT_ZERO_NATIVE)
r = b->zero (c, count, offset, flags, err);
else { /* NBDKIT_ZERO_EMULATE */
int writeflags = 0;
bool need_flush = false;
if (fast) {
*err = ENOTSUP;
return -1;
}
if (fua) {
if (c->can_fua == NBDKIT_FUA_EMULATE)
need_flush = true;
else
writeflags = NBDKIT_FLAG_FUA;
}
while (count) {
/* Always contains zeroes, but we can't use const or else gcc 9
* will use .rodata instead of .bss and inflate the binary size.
*/
static /* const */ char buffer[MAX_REQUEST_SIZE];
uint32_t limit = MIN (count, MAX_REQUEST_SIZE);
if (limit == count && need_flush)
writeflags = NBDKIT_FLAG_FUA;
if (backend_pwrite (c, buffer, limit, offset, writeflags, err) == -1)
return -1;
offset += limit;
count -= limit;
}
r = 0;
}
if (r == -1) {
assert (*err);
if (!fast)
assert (*err != ENOTSUP && *err != EOPNOTSUPP);
}
return r;
}
int
backend_extents (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags,
struct nbdkit_extents *extents, int *err)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
assert (c->can_extents >= 0);
assert (backend_valid_range (c, offset, count));
assert (!(flags & ~NBDKIT_FLAG_REQ_ONE));
datapath_debug ("%s: extents count=%" PRIu32 " offset=%" PRIu64 " req_one=%d",
b->name, count, offset, !!(flags & NBDKIT_FLAG_REQ_ONE));
if (c->can_extents == 0) {
/* By default it is safe assume that everything in the range is
* allocated.
*/
r = nbdkit_add_extent (extents, offset, count, 0 /* allocated data */);
if (r == -1)
*err = errno;
return r;
}
r = b->extents (c, count, offset, flags, extents, err);
if (r == -1)
assert (*err);
return r;
}
int
backend_cache (struct context *c,
uint32_t count, uint64_t offset,
uint32_t flags, int *err)
{
PUSH_CONTEXT_FOR_SCOPE (c);
struct backend *b = c->b;
int r;
assert (b->magic == BACKEND_MAGIC);
assert (c->handle && (c->state & HANDLE_CONNECTED));
assert (c->can_cache > NBDKIT_CACHE_NONE);
assert (backend_valid_range (c, offset, count));
assert (flags == 0);
datapath_debug ("%s: cache count=%" PRIu32 " offset=%" PRIu64,
b->name, count, offset);
if (c->can_cache == NBDKIT_CACHE_EMULATE) {
static char buf[MAX_REQUEST_SIZE]; /* data sink, never read */
uint32_t limit;
while (count) {
limit = MIN (count, sizeof buf);
if (backend_pread (c, buf, limit, offset, flags, err) == -1)
return -1;
count -= limit;
offset += limit;
}
return 0;
}
r = b->cache (c, count, offset, flags, err);
if (r == -1)
assert (*err);
return r;
}
nbdkit-1.42.2/server/background.c 0000644 0001750 0001750 00000005705 14534316443 012343 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include "internal.h"
/* True if we forked into the background (used to control log messages). */
bool forked_into_background;
#ifndef WIN32
/* This is a separate function because RHEL 6-era gcc requires pragmas
* outside function scope.
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-result"
static void
chdir_root (void)
{
chdir ("/");
}
#pragma GCC diagnostic pop
/* Run as a background process. If foreground is set (ie. -f or
* equivalent) then this does nothing. Otherwise it forks into the
* background and sets forked_into_background.
*/
void
fork_into_background (void)
{
pid_t pid;
if (foreground)
return;
pid = fork ();
if (pid == -1) {
perror ("fork");
exit (EXIT_FAILURE);
}
if (pid > 0) /* Parent process exits. */
exit (EXIT_SUCCESS);
chdir_root ();
/* By this point, stdin/out have been redirected to /dev/null.
* If not verbose, set stderr to the same as stdout as well.
*/
if (!verbose)
dup2 (STDOUT_FILENO, STDERR_FILENO);
forked_into_background = true;
debug ("forked into background (new pid = %d)", getpid ());
}
#else /* WIN32 */
void
fork_into_background (void)
{
if (foreground)
return;
fprintf (stderr, "nbdkit: You must use the -f option on Windows.\n");
NOT_IMPLEMENTED_ON_WINDOWS ("daemonizing");
}
#endif /* WIN32 */
nbdkit-1.42.2/server/captive.c 0000644 0001750 0001750 00000012150 14623341243 011642 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#ifdef HAVE_SYS_WAIT_H
#include
#endif
#include "open_memstream.h"
#include "utils.h"
#include "internal.h"
#ifndef WIN32
/* Handle the --run option. If run is NULL, does nothing. If run is
* not NULL then run nbdkit as a captive subprocess of the command.
*/
void
run_command (void)
{
FILE *fp;
char *cmd = NULL;
size_t len = 0;
int r, status;
pid_t pid;
if (!run)
return;
fp = open_memstream (&cmd, &len);
if (fp == NULL) {
perror ("open_memstream");
exit (EXIT_FAILURE);
}
/* Construct $uri. */
fprintf (fp, "uri=");
if (uri)
shell_quote (uri, fp);
putc ('\n', fp);
/* Since nbdkit 1.24, $nbd is a synonym for $uri. */
fprintf (fp, "nbd=\"$uri\"\n");
/* Expose $exportname. */
fprintf (fp, "exportname=");
if (export_name)
shell_quote (export_name, fp);
putc ('\n', fp);
/* Construct $port and $unixsocket. */
fprintf (fp, "port=");
if (port)
shell_quote (port, fp);
putc ('\n', fp);
fprintf (fp, "unixsocket=");
if (unixsocket)
shell_quote (unixsocket, fp);
fprintf (fp, "\n");
/* Construct TLS-related variables. */
if (tls > 0)
fprintf (fp, "tls=%d\n", tls);
fprintf (fp, "tls_certificates=");
if (tls_certificates_dir)
shell_quote (tls_certificates_dir, fp);
fprintf (fp, "\n");
fprintf (fp, "tls_psk=");
if (tls_psk)
shell_quote (tls_psk, fp);
fprintf (fp, "\n");
/* Add the --run command. Note we don't have to quote this. */
fprintf (fp, "%s", run);
if (fclose (fp) == EOF) {
perror ("memstream failed");
exit (EXIT_FAILURE);
}
/* Fork. Captive nbdkit runs as the child process. */
pid = fork ();
if (pid == -1) {
perror ("fork");
exit (EXIT_FAILURE);
}
if (pid > 0) { /* Parent process is the run command. */
/* Restore original stdin/out */
if (dup2 (saved_stdin, STDIN_FILENO) == -1 ||
dup2 (saved_stdout, STDOUT_FILENO) == -1) {
r = -1;
}
else
r = system (cmd);
if (r == -1) {
nbdkit_error ("failure to execute external command: %m");
r = EXIT_FAILURE;
}
else if (WIFEXITED (r))
r = WEXITSTATUS (r);
else {
assert (WIFSIGNALED (r));
fprintf (stderr, "%s: external command was killed by signal %d\n",
program_name, WTERMSIG (r));
r = WTERMSIG (r) + 128;
}
switch (waitpid (pid, &status, WNOHANG)) {
case -1:
nbdkit_error ("waitpid: %m");
r = EXIT_FAILURE;
break;
case 0:
/* Captive nbdkit is still running; kill it. We want to wait
* for nbdkit to exit since that ensures all cleanup is done in
* the plugin before we return. However we don't care if nbdkit
* returns an error, the exit code we return always comes from
* the --run command.
*/
kill (pid, SIGTERM);
waitpid (pid, NULL, 0);
break;
default:
/* Captive nbdkit exited unexpectedly; update the exit status. */
if (WIFEXITED (status)) {
if (r == 0)
r = WEXITSTATUS (status);
}
else {
assert (WIFSIGNALED (status));
fprintf (stderr, "%s: nbdkit command was killed by signal %d\n",
program_name, WTERMSIG (status));
r = WTERMSIG (status) + 128;
}
}
exit (r);
}
free (cmd);
debug ("forked into background (new pid = %d)", getpid ());
}
#else /* WIN32 */
void
run_command (void)
{
if (!run)
return;
NOT_IMPLEMENTED_ON_WINDOWS ("--run");
}
#endif /* WIN32 */
nbdkit-1.42.2/server/connections.c 0000644 0001750 0001750 00000033256 14771245250 012550 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#ifdef HAVE_SYS_SOCKET_H
#include
#endif
#include "internal.h"
#include "utils.h"
/* Default number of parallel requests. */
#define DEFAULT_PARALLEL_REQUESTS 16
static struct connection *new_connection (int sockin, int sockout,
int nworkers);
static void free_connection (struct connection *conn);
/* Don't call these raw socket functions directly. Use conn->recv etc. */
static int raw_recv ( void *buf, size_t len);
static int raw_send_socket (const void *buf, size_t len, int flags);
#ifndef WIN32
static int raw_send_other (const void *buf, size_t len, int flags);
#endif
static void raw_close (int how);
conn_status
connection_get_status (void)
{
GET_CONN;
conn_status r;
if (conn->nworkers &&
pthread_mutex_lock (&conn->status_lock))
abort ();
r = conn->status;
if (conn->nworkers &&
pthread_mutex_unlock (&conn->status_lock))
abort ();
return r;
}
/* Update the status if the new value is lower than the existing value.
* Return true if the caller should shutdown.
*/
bool
connection_set_status (conn_status value)
{
GET_CONN;
bool ret = false;
if (conn->nworkers &&
pthread_mutex_lock (&conn->status_lock))
abort ();
if (value < conn->status) {
if (conn->nworkers && conn->status > STATUS_CLIENT_DONE &&
value <= STATUS_CLIENT_DONE) {
char c = 0;
assert (conn->status_pipe[1] >= 0);
if (write (conn->status_pipe[1], &c, 1) != 1 && errno != EAGAIN)
debug ("failed to notify pipe-to-self: %m");
}
if (conn->status >= STATUS_CLIENT_DONE && value < STATUS_CLIENT_DONE)
ret = true;
conn->status = value;
}
if (conn->nworkers &&
pthread_mutex_unlock (&conn->status_lock))
abort ();
return ret;
}
struct worker_data {
struct connection *conn;
char *name;
};
static void *
connection_worker (void *data)
{
struct worker_data *worker = data;
struct connection *conn = worker->conn;
char *name = worker->name;
debug ("starting worker thread %s", name);
threadlocal_new_server_thread ();
threadlocal_set_name (name);
threadlocal_set_conn (conn);
free (worker);
while (!quit && connection_get_status () > STATUS_CLIENT_DONE)
if (protocol_recv_request_send_reply ()) {
ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
conn->close (SHUT_WR);
}
debug ("exiting worker thread %s", threadlocal_get_name ());
free (name);
return NULL;
}
void
handle_single_connection (int sockin, int sockout)
{
const char *plugin_name;
int r;
struct connection *conn;
int nworkers = threads ? threads : DEFAULT_PARALLEL_REQUESTS;
pthread_t *workers = NULL;
lock_connection ();
/* Because of asynchronous exit it is plausible that a new
* connection is started at the same time as the backend is being
* shut down. top may therefore be NULL, and if this happens return
* immediately.
*/
if (!top) {
unlock_connection ();
return;
}
if (thread_model < NBDKIT_THREAD_MODEL_PARALLEL || nworkers == 1)
nworkers = 0;
conn = new_connection (sockin, sockout, nworkers);
if (!conn)
goto done;
plugin_name = top->plugin_name (top);
threadlocal_set_name (plugin_name);
if (top->preconnect (top, read_only) == -1)
goto done;
/* Start the timeout just before the NBD handshake, but after
* preconnect (so we don't bother to create a timer if the client
* was rejected by IP rules etc).
*/
if (start_timeout (conn) == -1)
goto done;
/* NBD handshake.
*
* Note that this calls the backend .open callback when it is safe
* to do so (eg. after TLS authentication).
*/
if (protocol_handshake () == -1)
goto done;
conn->handshake_complete = true;
cancel_timeout (conn);
if (!nworkers) {
/* No need for a separate thread. */
debug ("handshake complete, processing requests serially");
while (!quit && connection_get_status () > STATUS_CLIENT_DONE)
if (protocol_recv_request_send_reply ())
conn->close (SHUT_WR);
}
else {
/* Create thread pool to process requests. */
debug ("handshake complete, processing requests with %d threads",
nworkers);
workers = calloc (nworkers, sizeof *workers);
if (unlikely (!workers)) {
perror ("malloc");
goto done;
}
for (nworkers = 0; nworkers < conn->nworkers; nworkers++) {
struct worker_data *worker = malloc (sizeof *worker);
int err;
if (unlikely (!worker)) {
perror ("malloc");
connection_set_status (STATUS_DEAD);
goto wait;
}
if (unlikely (asprintf (&worker->name, "%s.%d", plugin_name, nworkers)
< 0)) {
perror ("asprintf");
connection_set_status (STATUS_DEAD);
free (worker);
goto wait;
}
worker->conn = conn;
err = pthread_create (&workers[nworkers], NULL, connection_worker,
worker);
if (unlikely (err)) {
errno = err;
perror ("pthread_create");
connection_set_status (STATUS_DEAD);
free (worker);
goto wait;
}
}
wait:
while (nworkers)
pthread_join (workers[--nworkers], NULL);
free (workers);
}
/* Finalize (for filters), called just before close. */
lock_request ();
r = backend_finalize (conn->top_context);
unlock_request ();
if (r == -1)
goto done;
done:
free_connection (conn);
unlock_connection ();
}
static struct connection *
new_connection (int sockin, int sockout, int nworkers)
{
struct connection *conn;
#ifndef WIN32
int opt;
socklen_t optlen = sizeof opt;
#endif
conn = calloc (1, sizeof *conn);
if (conn == NULL) {
perror ("malloc");
return NULL;
}
conn->magic = CONN_MAGIC;
conn->status_pipe[0] = conn->status_pipe[1] = -1;
pthread_mutex_init (&conn->request_lock, NULL);
pthread_mutex_init (&conn->read_lock, NULL);
pthread_mutex_init (&conn->write_lock, NULL);
pthread_mutex_init (&conn->status_lock, NULL);
conn->default_exportname = calloc (top->i + 1,
sizeof *conn->default_exportname);
if (conn->default_exportname == NULL) {
perror ("malloc");
goto error1;
}
conn->status = STATUS_ACTIVE;
conn->nworkers = nworkers;
if (nworkers) {
#ifdef HAVE_PIPE2
if (pipe2 (conn->status_pipe, O_NONBLOCK | O_CLOEXEC)) {
perror ("pipe2");
goto error2;
}
#else
#ifdef HAVE_PIPE
/* If we were fully parallel, then this function could be
* accepting connections in one thread while another thread could
* be in a plugin trying to fork. But plugins.c forced
* thread_model to serialize_all_requests when it detects a lack
* of atomic CLOEXEC, at which point, we can use a mutex to ensure
* we aren't accepting until the plugin is not running, making
* non-atomicity okay.
*/
assert (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS);
lock_request ();
if (pipe (conn->status_pipe)) {
perror ("pipe");
unlock_request ();
goto error2;
}
if (set_nonblock (set_cloexec (conn->status_pipe[0])) == -1) {
perror ("fcntl");
close (conn->status_pipe[1]);
unlock_request ();
goto error2;
}
if (set_nonblock (set_cloexec (conn->status_pipe[1])) == -1) {
perror ("fcntl");
close (conn->status_pipe[0]);
unlock_request ();
goto error2;
}
unlock_request ();
#else /* !HAVE_PIPE2 && !HAVE_PIPE */
/* Windows has neither pipe2 nor pipe. XXX */
#endif
#endif
}
conn->sockin = sockin;
conn->sockout = sockout;
conn->recv = raw_recv;
#ifndef WIN32
if (getsockopt (sockout, SOL_SOCKET, SO_TYPE, &opt, &optlen) == 0)
conn->send = raw_send_socket;
else
conn->send = raw_send_other;
#else
conn->send = raw_send_socket;
#endif
conn->close = raw_close;
threadlocal_set_conn (conn);
return conn;
#if defined (HAVE_PIPE2) || defined (HAVE_PIPE)
error2:
#endif
if (conn->status_pipe[0] >= 0)
close (conn->status_pipe[0]);
if (conn->status_pipe[1] >= 0)
close (conn->status_pipe[1]);
free (conn->default_exportname);
error1:
pthread_mutex_destroy (&conn->request_lock);
pthread_mutex_destroy (&conn->read_lock);
pthread_mutex_destroy (&conn->write_lock);
pthread_mutex_destroy (&conn->status_lock);
free (conn);
return NULL;
}
static void
free_connection (struct connection *conn)
{
struct backend *b;
if (!conn)
return;
cancel_timeout (conn);
conn->close (SHUT_RDWR);
/* Don't call the plugin again if quit has been set because the main
* thread will be in the process of unloading it. The plugin.unload
* callback should always be called.
*/
if (!quit) {
lock_request ();
if (conn->top_context) {
backend_close (conn->top_context);
conn->top_context = NULL;
}
unlock_request ();
}
if (conn->status_pipe[0] >= 0) {
close (conn->status_pipe[0]);
close (conn->status_pipe[1]);
}
pthread_mutex_destroy (&conn->request_lock);
pthread_mutex_destroy (&conn->read_lock);
pthread_mutex_destroy (&conn->write_lock);
pthread_mutex_destroy (&conn->status_lock);
free (conn->exportname_from_set_meta_context);
free_interns ();
for_each_backend (b)
free (conn->default_exportname[b->i]);
free (conn->default_exportname);
conn->magic = 0;
free (conn);
threadlocal_set_conn (NULL);
}
/* Write buffer to conn->sockout with send() and either succeed completely
* (returns 0) or fail (returns -1). flags may include SEND_MORE as a hint
* that this send will be followed by related data.
*/
static int
raw_send_socket (const void *vbuf, size_t len, int flags)
{
GET_CONN;
int sock = conn->sockout;
const char *buf = vbuf;
ssize_t r;
int f = 0;
if (sock < 0) {
errno = EBADF;
return -1;
}
#ifdef MSG_MORE
if (flags & SEND_MORE)
f |= MSG_MORE;
#endif
while (len > 0) {
r = send (sock, buf, len, f);
if (r == -1) {
if (errno == EINTR || errno == EAGAIN)
continue;
return -1;
}
buf += r;
len -= r;
}
return 0;
}
#ifndef WIN32
/* Write buffer to conn->sockout with write() and either succeed completely
* (returns 0) or fail (returns -1). flags is ignored.
*/
static int
raw_send_other (const void *vbuf, size_t len, int flags)
{
GET_CONN;
int sock = conn->sockout;
const char *buf = vbuf;
ssize_t r;
assert (sock >= 0);
while (len > 0) {
r = write (sock, buf, len);
if (r == -1) {
if (errno == EINTR || errno == EAGAIN)
continue;
return -1;
}
buf += r;
len -= r;
}
return 0;
}
#endif /* !WIN32 */
/* Read buffer from conn->sockin and either succeed completely
* (returns > 0), read an EOF (returns 0), or fail (returns -1).
*/
static int
raw_recv (void *vbuf, size_t len)
{
GET_CONN;
int sock = conn->sockin;
char *buf = vbuf;
ssize_t r;
bool first_read = true;
while (len > 0) {
/* On Unix we want to use read(2) here because that allows us to
* read from non-sockets (think: nbdkit -s). In particular this
* makes fuzzing possible. However this is not possible on
* Windows where we must use recv.
*/
#ifndef WIN32
r = read (sock, buf, len);
#else
r = recv (sock, buf, len, 0);
#endif
if (r == -1) {
if (errno == EINTR || errno == EAGAIN)
continue;
return -1;
}
if (r == 0) {
if (first_read)
return 0;
/* Partial record read. This is an error. */
errno = EBADMSG;
return -1;
}
first_read = false;
buf += r;
len -= r;
}
return 1;
}
/* There's no place in the NBD protocol to send back errors from
* close, so this function ignores errors.
*
* If @how == SHUT_WR and conn->nworkers > 1, the caller holds write_lock.
*/
static void
raw_close (int how)
{
GET_CONN;
if (conn->sockout >= 0 && how == SHUT_WR) {
if (conn->sockin == conn->sockout)
shutdown (conn->sockout, how);
else
closesocket (conn->sockout);
conn->sockout = -1;
}
else {
if (conn->sockin >= 0)
closesocket (conn->sockin);
if (conn->sockout >= 0 && conn->sockin != conn->sockout)
closesocket (conn->sockout);
}
}
nbdkit-1.42.2/server/crypto.c 0000644 0001750 0001750 00000062265 14676465664 011571 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "cleanup.h"
#include "internal.h"
#include "realpath.h"
#include "strndup.h"
#ifdef HAVE_GNUTLS
#include
#include
/* See comment in configure.ac */
#ifdef HAVE_GNUTLS_SOCKET_H
#include
#endif
#ifdef HAVE_GNUTLS_TRANSPORT_IS_KTLS_ENABLED
#define TRY_KTLS 1
#else
#define TRY_KTLS 0
#endif
static int crypto_auth;
#define CRYPTO_AUTH_CERTIFICATES 1
#define CRYPTO_AUTH_PSK 2
static gnutls_certificate_credentials_t x509_creds;
static gnutls_psk_server_credentials_t psk_creds;
static void print_gnutls_error (int err, const char *fs, ...)
ATTRIBUTE_FORMAT_PRINTF (2, 3);
static void
print_gnutls_error (int err, const char *fs, ...)
{
va_list args;
fprintf (stderr, "%s: GnuTLS error: ", program_name);
va_start (args, fs);
vfprintf (stderr, fs, args);
va_end (args);
fprintf (stderr, ": %s\n", gnutls_strerror (err));
}
/* Try to load certificates from 'path'. Returns true if successful.
* If it's not a certicate directory it returns false. Exits on
* other errors.
*/
static int
load_certificates (const char *path)
{
CLEANUP_FREE char *ca_cert_filename = NULL;
CLEANUP_FREE char *server_cert_filename = NULL;
CLEANUP_FREE char *server_key_filename = NULL;
CLEANUP_FREE char *ca_crl_filename = NULL;
int err;
if (asprintf (&ca_cert_filename, "%s/ca-cert.pem", path) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
if (asprintf (&server_cert_filename, "%s/server-cert.pem", path) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
if (asprintf (&server_key_filename, "%s/server-key.pem", path) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
if (asprintf (&ca_crl_filename, "%s/ca-crl.pem", path) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
/* Our test for a certificate directory is that ca-cert.pem,
* server-cert.pem and server-key.pem must all exist in the path.
*/
if (access (ca_cert_filename, R_OK) == -1)
return 0;
if (access (server_cert_filename, R_OK) == -1)
return 0;
if (access (server_key_filename, R_OK) == -1)
return 0;
/* Any problem past here is a hard error. */
err = gnutls_certificate_allocate_credentials (&x509_creds);
if (err < 0) {
print_gnutls_error (err, "allocating credentials");
exit (EXIT_FAILURE);
}
err = gnutls_certificate_set_x509_trust_file (x509_creds, ca_cert_filename,
GNUTLS_X509_FMT_PEM);
if (err < 0) {
print_gnutls_error (err, "loading %s", ca_cert_filename);
exit (EXIT_FAILURE);
}
if (access (ca_crl_filename, R_OK) == 0) {
err = gnutls_certificate_set_x509_crl_file (x509_creds, ca_crl_filename,
GNUTLS_X509_FMT_PEM);
if (err < 0) {
print_gnutls_error (err, "loading %s", ca_crl_filename);
exit (EXIT_FAILURE);
}
}
err = gnutls_certificate_set_x509_key_file (x509_creds,
server_cert_filename,
server_key_filename,
GNUTLS_X509_FMT_PEM);
if (err < 0) {
print_gnutls_error (err, "loading server certificate and key (%s, %s)",
server_cert_filename, server_key_filename);
exit (EXIT_FAILURE);
}
debug ("successfully loaded TLS certificates from %s", path);
return 1;
}
static int
start_certificates (void)
{
/* Try to locate the certificates directory and load them. */
if (tls_certificates_dir == NULL) {
const char *home;
CLEANUP_FREE char *path = NULL;
#ifndef WIN32
#define RUNNING_AS_NON_ROOT_FOR_CERTIFICATES_DIR (geteuid () != 0)
#else
#define RUNNING_AS_NON_ROOT_FOR_CERTIFICATES_DIR 0
#endif
if (RUNNING_AS_NON_ROOT_FOR_CERTIFICATES_DIR) {
home = getenv ("HOME");
if (home) {
if (asprintf (&path, "%s/.pki/%s", home, PACKAGE_NAME) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
if (load_certificates (path))
goto found_certificates;
free (path);
if (asprintf (&path, "%s/.config/pki/%s", home, PACKAGE_NAME) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
if (load_certificates (path))
goto found_certificates;
}
}
else { /* geteuid () == 0 */
if (load_certificates (root_tls_certificates_dir))
goto found_certificates;
}
}
else {
if (load_certificates (tls_certificates_dir))
goto found_certificates;
}
return -1;
found_certificates:
#ifdef HAVE_GNUTLS_CERTIFICATE_SET_KNOWN_DH_PARAMS
gnutls_certificate_set_known_dh_params (x509_creds, GNUTLS_SEC_PARAM_MEDIUM);
#endif
return 0;
}
static int
start_psk (void)
{
int err;
CLEANUP_FREE char *abs_psk_file = NULL;
/* Make sure the path to the PSK file is absolute. */
abs_psk_file = realpath (tls_psk, NULL);
if (abs_psk_file == NULL) {
perror (tls_psk);
exit (EXIT_FAILURE);
}
err = gnutls_psk_allocate_server_credentials (&psk_creds);
if (err < 0) {
print_gnutls_error (err, "allocating PSK credentials");
exit (EXIT_FAILURE);
}
/* Note that this function makes a copy of the string.
* CLEANUP_FREE macro above will free abs_psk_file when
* we return, but this is safe.
*/
gnutls_psk_set_server_credentials_file (psk_creds, abs_psk_file);
return 0;
}
/* Initialize crypto. This also handles the command line parameters
* and loading the server certificate.
*/
void
crypto_init (bool tls_set_on_cli)
{
int err, r;
const char *what;
err = gnutls_global_init ();
if (err < 0) {
print_gnutls_error (err, "initializing GnuTLS");
exit (EXIT_FAILURE);
}
if (tls == 0) /* --tls=off */
return;
/* --tls-psk overrides certificates. */
if (tls_psk != NULL) {
what = "Pre-Shared Keys (PSK)";
r = start_psk ();
if (r == 0)
crypto_auth = CRYPTO_AUTH_PSK;
}
else {
what = "X.509 certificates";
r = start_certificates ();
if (r == 0)
crypto_auth = CRYPTO_AUTH_CERTIFICATES;
}
if (r == 0) {
debug ("TLS enabled using: %s", what);
return;
}
/* If we get here, we didn't manage to load the PSK file /
* certificates. If --tls=require was given on the command line
* then that's a problem.
*/
if (tls == 2) { /* --tls=require */
fprintf (stderr,
"%s: --tls=require but could not load TLS certificates.\n"
"Try setting ‘--tls-certificates=/path/to/certificates’ or read\n"
"the \"TLS\" section in nbdkit(1).\n",
program_name);
exit (EXIT_FAILURE);
}
/* If --tls=on was given on the command line, warn before we turn
* TLS off.
*/
if (tls == 1 && tls_set_on_cli) { /* explicit --tls=on */
fprintf (stderr,
"%s: warning: --tls=on but could not load TLS certificates.\n"
"TLS will be disabled and TLS connections will be rejected.\n"
"Try setting ‘--tls-certificates=/path/to/certificates’ or read\n"
"the \"TLS\" section in nbdkit(1).\n",
program_name);
}
tls = 0;
debug ("TLS disabled: could not load TLS certificates");
}
void
crypto_free (void)
{
if (tls > 0) {
switch (crypto_auth) {
case CRYPTO_AUTH_CERTIFICATES:
gnutls_certificate_free_credentials (x509_creds);
break;
case CRYPTO_AUTH_PSK:
gnutls_psk_free_server_credentials (psk_creds);
break;
}
}
gnutls_global_deinit ();
}
/* Read buffer from GnuTLS and either succeed completely
* (returns > 0), read an EOF (returns 0), or fail (returns -1).
*/
static int
crypto_recv (void *vbuf, size_t len)
{
GET_CONN;
gnutls_session_t session = conn->crypto_session;
char *buf = vbuf;
ssize_t r;
bool first_read = true;
assert (session != NULL);
while (len > 0) {
r = gnutls_record_recv (session, buf, len);
if (r < 0) {
if (r == GNUTLS_E_INTERRUPTED || r == GNUTLS_E_AGAIN)
continue;
nbdkit_error ("gnutls_record_recv: %s", gnutls_strerror (r));
errno = EIO;
return -1;
}
if (r == 0) {
if (first_read)
return 0;
/* Partial record read. This is an error. */
errno = EBADMSG;
return -1;
}
first_read = false;
buf += r;
len -= r;
}
return 1;
}
/* If this send()'s length is so large that it is going to require
* multiple TCP segments anyway, there's no need to try and merge it
* with any corked data from a previous send that used SEND_MORE.
*/
#define MAX_SEND_MORE_LEN (64 * 1024)
/* Write buffer to GnuTLS and either succeed completely
* (returns 0) or fail (returns -1).
*/
static int
crypto_send (const void *vbuf, size_t len, int flags)
{
GET_CONN;
gnutls_session_t session = conn->crypto_session;
const char *buf = vbuf;
int err;
ssize_t r;
assert (session != NULL);
if (len + gnutls_record_check_corked (session) > MAX_SEND_MORE_LEN) {
errno = 0;
err = gnutls_record_uncork (session, GNUTLS_RECORD_WAIT);
if (err < 0) {
nbdkit_error ("gnutls_record_uncork: %s", gnutls_strerror (err));
if (errno == 0) errno = EIO;
return -1;
}
}
else if (flags & SEND_MORE)
gnutls_record_cork (session);
while (len > 0) {
errno = 0;
r = gnutls_record_send (session, buf, len);
if (r < 0) {
if (r == GNUTLS_E_INTERRUPTED || r == GNUTLS_E_AGAIN)
continue;
nbdkit_error ("gnutls_record_send: %s", gnutls_strerror (r));
if (errno == 0) errno = EIO;
return -1;
}
buf += r;
len -= r;
}
if (!(flags & SEND_MORE)) {
errno = 0;
err = gnutls_record_uncork (session, GNUTLS_RECORD_WAIT);
if (err < 0) {
nbdkit_error ("gnutls_record_uncork: %s", gnutls_strerror (err));
if (errno == 0) errno = EIO;
return -1;
}
}
return 0;
}
/* There's no place in the NBD protocol to send back errors from
* close, so this function ignores errors.
*/
static void
crypto_close (int how)
{
GET_CONN;
gnutls_session_t session = conn->crypto_session;
int sockin, sockout;
assert (session != NULL);
if (how == SHUT_WR)
gnutls_bye (session, GNUTLS_SHUT_WR);
else {
gnutls_transport_get_int2 (session, &sockin, &sockout);
gnutls_bye (session, GNUTLS_SHUT_RDWR);
if (sockin >= 0)
closesocket (sockin);
if (sockout >= 0 && sockin != sockout)
closesocket (sockout);
gnutls_deinit (session);
conn->crypto_session = NULL;
}
}
#ifdef WIN32
/* Push/pull functions. Only required for Windows, because on Unix we
* can use the default send(2) and recv(2). Note these are actually
* calling the wrappers win_send and win_recv in windows-compat.h
*/
static ssize_t
push (gnutls_transport_ptr_t ptr, const void *buf, size_t n)
{
ssize_t r;
r = send ((intptr_t) ptr, buf, n, 0);
/* XXX call gnutls_transport_set_errno here */
return r;
}
static ssize_t
pull (gnutls_transport_ptr_t ptr, void *buf, size_t n)
{
ssize_t r;
r = recv ((intptr_t) ptr, buf, n, 0);
/* XXX call gnutls_transport_set_errno here */
return r;
}
static int
pull_timeout (gnutls_transport_ptr_t ptr, unsigned ms)
{
#if 0
/* XXX This is what you're supposed to do, but I couldn't get it to
* work.
*/
return gnutls_system_recv_timeout (ptr, ms);
#endif
return 1;
}
#endif /* WIN32 */
/* Turn GnuTLS debug messages into nbdkit debug messages
* when nbdkit -D nbdkit.tls.log > 0
*/
NBDKIT_DLL_PUBLIC int nbdkit_debug_tls_log = 0;
static void
tls_log (int level, const char *msg)
{
size_t len;
CLEANUP_FREE char *copy = NULL;
/* Strip trailing \n added by GnuTLS. */
len = strlen (msg);
if (len > 0 && msg[len-1] == '\n') {
copy = strndup (msg, len-1);
msg = copy;
}
debug ("gnutls: %d: %s", level, msg);
}
/* Print additional information about the session using
* nbdkit -D nbdkit.tls.session=1
*
* https://gnutls.org/manual/html_node/Obtaining-session-information.html
*/
NBDKIT_DLL_PUBLIC int nbdkit_debug_tls_session = 0;
static void
debug_x509_cert (gnutls_session_t session)
{
const gnutls_datum_t *cert_list;
unsigned int i, cert_list_size = 0;
cert_list = gnutls_certificate_get_peers (session, &cert_list_size);
if (cert_list == NULL) {
/* Note unless you use --tls-verify-peer you will always see the
* following message.
*/
debug ("TLS: no peer certificates found");
return;
}
debug ("TLS: peer provided %u certificate(s)", cert_list_size);
for (i = 0; i < cert_list_size; ++i) {
int ret;
gnutls_x509_crt_t cert;
gnutls_datum_t cinfo;
/* This is for debugging; best-effort is okay */
ret = gnutls_x509_crt_init (&cert);
if (ret != 0)
continue;
ret = gnutls_x509_crt_import (cert, &cert_list[i], GNUTLS_X509_FMT_DER);
if (ret != 0) {
gnutls_x509_crt_deinit (cert);
continue;
}
ret = gnutls_x509_crt_print (cert, GNUTLS_CRT_PRINT_ONELINE, &cinfo);
if (ret == 0) {
debug ("TLS: %s", cinfo.data);
gnutls_free (cinfo.data);
}
gnutls_x509_crt_deinit (cert);
}
}
static void
debug_session (gnutls_session_t session)
{
gnutls_credentials_type_t cred;
gnutls_kx_algorithm_t kx;
bool dhe = false, ecdh = false;
int grp;
const char *desc, *username, *hint;
#if TRY_KTLS
gnutls_transport_ktls_enable_flags_t ktls_enabled;
#endif
if (nbdkit_debug_tls_session <= 0)
return;
desc = gnutls_session_get_desc (session);
if (desc) debug ("TLS session: %s", desc);
#if TRY_KTLS
ktls_enabled = gnutls_transport_is_ktls_enabled (session);
switch (ktls_enabled) {
case GNUTLS_KTLS_RECV:
debug ("TLS: kTLS enabled for receive only"); break;
case GNUTLS_KTLS_SEND:
debug ("TLS: kTLS enabled for send only"); break;
case GNUTLS_KTLS_DUPLEX:
debug ("TLS: kTLS enabled full duplex"); break;
default:
if ((int) ktls_enabled == 0)
debug ("TLS: kTLS disabled");
else
debug ("TLS: kTLS enabled unknown setting: %d", (int) ktls_enabled);
}
#endif
kx = gnutls_kx_get (session);
cred = gnutls_auth_get_type (session);
switch (cred) {
case GNUTLS_CRD_SRP:
debug ("TLS: authentication: SRP (Secure Remote Password)");
#ifdef HAVE_GNUTLS_SRP_SERVER_GET_USERNAME
username = gnutls_srp_server_get_username (session);
#else
username = NULL;
#endif
if (username)
debug ("TLS: SRP session username: %s", username);
break;
case GNUTLS_CRD_PSK:
debug ("TLS: authentication: PSK (Pre-Shared Key)");
hint = gnutls_psk_client_get_hint (session);
if (hint)
debug ("TLS: PSK hint: %s", hint);
username = gnutls_psk_server_get_username (session);
if (username)
debug ("TLS: PSK username: %s", username);
if (kx == GNUTLS_KX_ECDHE_PSK)
ecdh = true;
else if (kx == GNUTLS_KX_DHE_PSK)
dhe = true;
break;
case GNUTLS_CRD_ANON:
debug ("TLS: authentication: anonymous");
if (kx == GNUTLS_KX_ANON_ECDH)
ecdh = true;
else if (kx == GNUTLS_KX_ANON_DH)
dhe = true;
break;
case GNUTLS_CRD_CERTIFICATE:
debug ("TLS: authentication: certificate");
if (gnutls_certificate_type_get (session) == GNUTLS_CRT_X509)
debug_x509_cert (session);
if (kx == GNUTLS_KX_DHE_RSA || kx == GNUTLS_KX_DHE_DSS)
dhe = true;
else if (kx == GNUTLS_KX_ECDHE_RSA || kx == GNUTLS_KX_ECDHE_ECDSA)
ecdh = true;
break;
default:
debug ("TLS: authentication: unknown (%d)", (int) cred);
}
#ifdef HAVE_GNUTLS_GROUP_GET
grp = gnutls_group_get (session);
#else
grp = 0;
#endif
if (grp) {
debug ("TLS: negotiated group: "
#ifdef HAVE_GNUTLS_GROUP_GET_NAME
"%s", gnutls_group_get_name (grp));
#else
"%d", grp);
#endif
}
else {
if (ecdh)
debug ("TLS: ephemeral ECDH using curve %s",
gnutls_ecc_curve_get_name (gnutls_ecc_curve_get (session)));
else if (dhe)
debug ("TLS: ephemeral DH using prime of %d bits",
gnutls_dh_get_prime_bits (session));
}
}
/* Upgrade an existing connection to TLS. Also this should do access
* control if enabled. The protocol code ensures this function can
* only be called once per connection.
*/
int
crypto_negotiate_tls (int sockin, int sockout)
{
GET_CONN;
gnutls_session_t session;
CLEANUP_FREE char *priority = NULL;
int err;
/* Create the GnuTLS session. */
err = gnutls_init (&session, GNUTLS_SERVER);
if (err < 0) {
nbdkit_error ("gnutls_init: %s", gnutls_strerror (err));
return -1;
}
if (nbdkit_debug_tls_log > 0)
gnutls_global_set_log_level (nbdkit_debug_tls_log);
gnutls_global_set_log_function (tls_log);
switch (crypto_auth) {
case CRYPTO_AUTH_CERTIFICATES:
/* Associate the session with the server credentials (key, cert). */
err = gnutls_credentials_set (session, GNUTLS_CRD_CERTIFICATE,
x509_creds);
if (err < 0) {
nbdkit_error ("gnutls_credentials_set: %s", gnutls_strerror (err));
goto error;
}
/* If verify peer is enabled, tell GnuTLS to request the client
* certificates. (Note the default is to not request or verify
* certificates).
*/
if (tls_verify_peer) {
gnutls_certificate_server_set_request (session, GNUTLS_CERT_REQUEST);
gnutls_session_set_verify_cert (session, NULL, 0);
}
priority = strdup (TLS_PRIORITY);
if (priority == NULL) {
nbdkit_error ("strdup: %m");
goto error;
}
break;
case CRYPTO_AUTH_PSK:
/* Associate the session with the server PSK credentials. */
err = gnutls_credentials_set (session, GNUTLS_CRD_PSK, psk_creds);
if (err < 0) {
nbdkit_error ("gnutls_credentials_set: %s", gnutls_strerror (err));
goto error;
}
if (asprintf (&priority,
"%s:+ECDHE-PSK:+DHE-PSK:+PSK", TLS_PRIORITY) == -1) {
nbdkit_error ("asprintf: %m");
goto error;
}
break;
default:
abort ();
}
assert (priority != NULL);
err = gnutls_priority_set_direct (session, priority, NULL);
if (err < 0) {
nbdkit_error ("failed to set TLS session priority to %s: %s",
priority, gnutls_strerror (err));
goto error;
}
/* Set up GnuTLS so it reads and writes on the raw sockets. */
gnutls_transport_set_int2 (session, sockin, sockout);
#ifdef WIN32
gnutls_transport_set_push_function (session, push);
gnutls_transport_set_pull_function (session, pull);
gnutls_transport_set_pull_timeout_function (session, pull_timeout);
#endif
/* Perform the handshake. */
debug ("starting TLS handshake");
gnutls_handshake_set_timeout (session,
GNUTLS_DEFAULT_HANDSHAKE_TIMEOUT);
do {
err = gnutls_handshake (session);
} while (err < 0 && gnutls_error_is_fatal (err) == 0);
if (err < 0) {
gnutls_handshake_description_t in, out;
/* Get some additional debug information about where in the
* handshake protocol it failed. You have to look up these codes in
* .
*/
in = gnutls_handshake_get_last_in (session);
out = gnutls_handshake_get_last_out (session);
nbdkit_error ("gnutls_handshake: %s (%d/%d)",
gnutls_strerror (err), (int) in, (int) out);
goto error;
}
debug ("TLS handshake completed");
debug_session (session);
/* Set up the connection recv/send/close functions so they call
* GnuTLS wrappers instead.
*/
conn->crypto_session = session;
conn->recv = crypto_recv;
conn->send = crypto_send;
conn->close = crypto_close;
return 0;
error:
gnutls_deinit (session);
return -1;
}
/* The prototype of both gnutls_x509_crt_get_dn3 and
* gnutls_x509_crt_get_issuer_dn3.
*/
typedef int (*get_dn3_fn) (gnutls_x509_crt_t cert, gnutls_datum_t *dn,
unsigned flags);
/* Common function to call either gnutls_x509_crt_get_dn3 or
* gnutls_x509_crt_get_issuer_dn3.
*/
static char *
get_peer_dn (const char *fn, get_dn3_fn get_dn3)
{
GET_CONN;
gnutls_session_t session = conn->crypto_session;
gnutls_credentials_type_t cred;
const gnutls_datum_t *cert_list;
unsigned int cert_list_size = 0;
gnutls_x509_crt_t cert = NULL;
gnutls_datum_t dn = { 0 };
int r;
char *ret = NULL;
if (!session) {
nbdkit_debug ("nbdkit_peer_tls_dn: no TLS session");
goto out_no_dn;
}
cred = gnutls_auth_get_type (session);
if (cred != GNUTLS_CRD_CERTIFICATE) {
nbdkit_debug ("nbdkit_peer_tls_dn: "
"TLS session not using certificates");
goto out_no_dn;
}
if (gnutls_certificate_type_get (session) != GNUTLS_CRT_X509) {
nbdkit_debug ("nbdkit_peer_tls_dn: "
"TLS session not using X.509 certificates");
goto out_no_dn;
}
cert_list = gnutls_certificate_get_peers (session, &cert_list_size);
if (cert_list == NULL || cert_list_size == 0) {
/* This can happen if tls_verify_peer is not set. It could also
* happen because gnutls cannot allocate the certificate list but
* that should be a rare error. Return no DN in this case.
*/
nbdkit_debug ("nbdkit_peer_tls_dn: "
"no client certificates (is --tls-verify-peer set?)");
goto out_no_dn;
}
/* XXX According to the spec, certificates should be sent with the
* client's certificate first, but the man page for
* gnutls_certificate_get_peers says there are X.509 clients which
* send them in a random order. However it's unlikely that there
* are any NBD clients doing this. Anyway we only consider the
* first certificate in the list.
*/
r = gnutls_x509_crt_init (&cert);
if (r != 0) {
nbdkit_error ("gnutls_x509_crt_init: %s", gnutls_strerror (r));
goto out;
}
r = gnutls_x509_crt_import (cert, &cert_list[0], GNUTLS_X509_FMT_DER);
if (r != 0) {
nbdkit_error ("gnutls_x509_crt_import: %s", gnutls_strerror (r));
goto out;
}
r = get_dn3 (cert, &dn, 0);
if (r != 0) {
nbdkit_error ("%s: %s", fn, gnutls_strerror (r));
goto out;
}
ret = strdup ((char *) dn.data);
if (ret == NULL) {
nbdkit_error ("strdup: %m");
ret = NULL;
goto out;
}
out:
if (cert)
gnutls_x509_crt_deinit (cert);
if (dn.data)
gnutls_free (dn.data);
return ret;
/* Not an error, but no DN for this session. */
out_no_dn:
if (cert)
gnutls_x509_crt_deinit (cert);
if (dn.data)
gnutls_free (dn.data);
ret = strdup ("");
if (ret == NULL) {
nbdkit_error ("strdup: %m");
return NULL;
}
return ret;
}
NBDKIT_DLL_PUBLIC char *
nbdkit_peer_tls_dn (void)
{
return get_peer_dn ("gnutls_x509_crt_get_dn3",
gnutls_x509_crt_get_dn3);
}
NBDKIT_DLL_PUBLIC char *
nbdkit_peer_tls_issuer_dn (void)
{
return get_peer_dn ("gnutls_x509_crt_get_issuer_dn3",
gnutls_x509_crt_get_issuer_dn3);
}
#else /* !HAVE_GNUTLS */
/* GnuTLS was not available at compile time. These are stub versions
* of the above functions which either do nothing or report errors as
* appropriate.
*/
void
crypto_init (bool tls_set_on_cli)
{
if (tls > 0) {
fprintf (stderr,
"%s: TLS cannot be enabled because "
"this binary was compiled without GnuTLS.\n",
program_name);
exit (EXIT_FAILURE);
}
tls = 0;
debug ("TLS disabled: nbdkit was not compiled with GnuTLS support");
}
void
crypto_free (void)
{
/* nothing */
}
int
crypto_negotiate_tls (int sockin, int sockout)
{
/* Should never be called because tls == 0. */
abort ();
}
NBDKIT_DLL_PUBLIC char *
nbdkit_peer_tls_dn (void)
{
nbdkit_error ("%s is not supported on this platform",
"nbdkit_peer_tls_dn");
return NULL;
}
NBDKIT_DLL_PUBLIC char *
nbdkit_peer_tls_issuer_dn (void)
{
nbdkit_error ("%s is not supported on this platform",
"nbdkit_peer_tls_issuer_dn");
return NULL;
}
#endif /* !HAVE_GNUTLS */
nbdkit-1.42.2/server/debug.c 0000644 0001750 0001750 00000010435 14534316443 011306 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include "ansi-colours.h"
#include "open_memstream.h"
#include "utils.h"
#include "internal.h"
static void
prologue (FILE *fp)
{
const char *name = threadlocal_get_name ();
size_t instance_num = threadlocal_get_instance_num ();
fprintf (fp, "%s: ", program_name);
if (name) {
fprintf (fp, "%s", name);
if (instance_num > 0)
fprintf (fp, "[%zu]", instance_num);
fprintf (fp, ": ");
}
fprintf (fp, "debug: ");
}
/* Common debug function.
* Note: preserves the previous value of errno.
*/
static void
debug_common (bool in_server, const char *fs, va_list args)
{
if (!verbose)
return;
int err = errno;
#ifndef WIN32
const int tty = isatty (fileno (stderr));
#else
const int tty = 0;
#endif
CLEANUP_FREE char *str_inner = NULL;
CLEANUP_FREE char *str_outer = NULL;
FILE *fp_inner, *fp_outer;
size_t len_inner = 0, len_outer = 0;
/* The "inner" string is the debug string before escaping. */
fp_inner = open_memstream (&str_inner, &len_inner);
if (fp_inner == NULL)
goto fail;
errno = err; /* so %m works */
vfprintf (fp_inner, fs, args);
if (close_memstream (fp_inner) == -1)
goto fail;
/* The "outer" string contains the prologue, escaped debug string and \n. */
fp_outer = open_memstream (&str_outer, &len_outer);
if (fp_outer == NULL) goto fail;
if (!in_server && tty) ansi_force_colour (ANSI_FG_BOLD_BLACK, fp_outer);
prologue (fp_outer);
c_string_quote (str_inner, fp_outer);
if (!in_server && tty) ansi_force_restore (fp_outer);
fprintf (fp_outer, "\n");
if (close_memstream (fp_outer) == -1)
goto fail;
if (!str_outer)
goto fail;
/* Send it to stderr as atomically as possible. */
fputs (str_outer, stderr);
errno = err; /* restore original value before return */
return;
fail:
/* Try to emit what we can. */
errno = err; /* so %m works */
vfprintf (stderr, fs, args);
fprintf (stderr, "\n");
errno = err; /* restore original value before return */
}
/* Note: preserves the previous value of errno. */
NBDKIT_DLL_PUBLIC void
nbdkit_vdebug (const char *fs, va_list args)
{
debug_common (false, fs, args);
}
/* Note: preserves the previous value of errno. */
NBDKIT_DLL_PUBLIC void
nbdkit_debug (const char *fs, ...)
{
int err = errno;
va_list args;
va_start (args, fs);
debug_common (false, fs, args);
va_end (args);
errno = err;
}
/* This variant of debug is used when debug is called from the server
* code, via the debug() macro.
*
* Note: preserves the previous value of errno.
*/
void
debug_in_server (const char *fs, ...)
{
int err = errno;
va_list args;
va_start (args, fs);
debug_common (true, fs, args);
va_end (args);
errno = err;
}
nbdkit-1.42.2/server/debug-flags.c 0000644 0001750 0001750 00000011667 14534316443 012410 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include "internal.h"
#include "strndup.h"
struct debug_flag {
struct debug_flag *next;
char *name; /* plugin or filter name */
char *flag; /* flag name */
char *symbol; /* symbol, eg. "myplugin_debug_foo" */
int value; /* value of flag */
bool used; /* if flag was successfully set */
};
/* Synthesize the name of the *_debug_* variable from the plugin name
* and flag.
*/
static char *
symbol_of_debug_flag (const char *name, const char *flag)
{
char *var;
size_t i;
int len;
len = asprintf (&var, "%s_debug_%s", name, flag);
if (len == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
/* If there are any '.'s remaining in the name, convert them to '_'. */
for (i = 0; i < (size_t) len; ++i) {
if (var[i] == '.')
var[i] = '_';
}
return var; /* caller frees */
}
/* Parse and add a single -D flag from the command line.
*
* Debug Flag must be "NAME.FLAG=N".
* ^ ^ ^
* arg p q (after +1 adjustment below)
*/
void
add_debug_flag (const char *arg)
{
struct debug_flag *flag;
char *p, *q;
p = strchr (arg, '.');
q = strchr (arg, '=');
if (p == NULL || q == NULL) {
bad_debug_flag:
fprintf (stderr,
"%s: -D (Debug Flag) must have the format NAME.FLAG=N\n",
program_name);
exit (EXIT_FAILURE);
}
p++; /* +1 adjustment */
q++;
if (p - arg <= 1) goto bad_debug_flag; /* NAME too short */
if (p > q) goto bad_debug_flag;
if (q - p <= 1) goto bad_debug_flag; /* FLAG too short */
if (*q == '\0') goto bad_debug_flag; /* N too short */
flag = malloc (sizeof *flag);
if (flag == NULL) {
debug_flag_perror:
perror ("malloc");
exit (EXIT_FAILURE);
}
flag->name = strndup (arg, p-arg-1);
if (!flag->name) goto debug_flag_perror;
flag->flag = strndup (p, q-p-1);
if (!flag->flag) goto debug_flag_perror;
if (nbdkit_parse_int ("flag", q, &flag->value) == -1)
goto bad_debug_flag;
flag->used = false;
flag->symbol = symbol_of_debug_flag (flag->name, flag->flag);
/* Add flag to the linked list. */
flag->next = debug_flags;
debug_flags = flag;
}
/* Apply all debug flags applicable to this backend. */
void
apply_debug_flags (void *dl, const char *name)
{
struct debug_flag *flag;
for (flag = debug_flags; flag != NULL; flag = flag->next) {
if (!flag->used && strcmp (name, flag->name) == 0) {
int *sym;
/* Find the symbol. */
sym = dlsym (dl, flag->symbol);
if (sym) {
/* Set the flag. */
*sym = flag->value;
}
else {
fprintf (stderr,
"%s: warning: -D %s.%s: %s does not contain a "
"global variable called %s\n",
program_name, name, flag->flag, name, flag->symbol);
}
/* Mark this flag as used. */
flag->used = true;
}
}
}
void
free_debug_flags (void)
{
while (debug_flags != NULL) {
struct debug_flag *next = debug_flags->next;
if (!debug_flags->used)
fprintf (stderr, "%s: warning: debug flag -D %s.%s was not used\n",
program_name, debug_flags->name, debug_flags->flag);
free (debug_flags->name);
free (debug_flags->flag);
free (debug_flags->symbol);
free (debug_flags);
debug_flags = next;
}
}
nbdkit-1.42.2/server/exports.c 0000644 0001750 0001750 00000010465 14534316443 011727 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include "vector.h"
#include "internal.h"
/* Cap nr_exports to avoid sending over-large replies to the client,
* and to avoid a plugin with large list consuming too much memory.
*/
#define MAX_EXPORTS 10000
/* Appendable list of exports. */
DEFINE_VECTOR_TYPE (exports, struct nbdkit_export);
struct nbdkit_exports {
exports exports;
bool use_default;
};
NBDKIT_DLL_PUBLIC struct nbdkit_exports *
nbdkit_exports_new (void)
{
struct nbdkit_exports *r;
r = malloc (sizeof *r);
if (r == NULL) {
nbdkit_error ("nbdkit_exports_new: malloc: %m");
return NULL;
}
r->exports = (exports) empty_vector;
r->use_default = false;
return r;
}
static void
nbdkit_export_clear (struct nbdkit_export exp)
{
free (exp.name);
free (exp.description);
}
NBDKIT_DLL_PUBLIC void
nbdkit_exports_free (struct nbdkit_exports *exps)
{
if (exps) {
exports_iter (&exps->exports, nbdkit_export_clear);
free (exps->exports.ptr);
free (exps);
}
}
NBDKIT_DLL_PUBLIC size_t
nbdkit_exports_count (const struct nbdkit_exports *exps)
{
return exps->exports.len;
}
NBDKIT_DLL_PUBLIC const struct nbdkit_export
nbdkit_get_export (const struct nbdkit_exports *exps, size_t i)
{
assert (i < exps->exports.len);
return exps->exports.ptr[i];
}
NBDKIT_DLL_PUBLIC int
nbdkit_add_export (struct nbdkit_exports *exps,
const char *name, const char *description)
{
struct nbdkit_export e = { NULL, NULL };
if (exps->exports.len == MAX_EXPORTS) {
nbdkit_error ("nbdkit_add_export: too many exports");
errno = EINVAL;
return -1;
}
if (strlen (name) > NBD_MAX_STRING ||
(description && strlen (description) > NBD_MAX_STRING)) {
nbdkit_error ("nbdkit_add_export: string too long");
errno = EINVAL;
return -1;
}
e.name = strdup (name);
if (e.name == NULL) {
nbdkit_error ("nbdkit_add_export: strdup: %m");
return -1;
}
if (description) {
e.description = strdup (description);
if (e.description == NULL) {
nbdkit_error ("nbdkit_add_export: strdup: %m");
free (e.name);
errno = ENOMEM;
return -1;
}
}
if (exports_append (&exps->exports, e) == -1) {
nbdkit_error ("nbdkit_add_export: realloc: %m");
free (e.name);
free (e.description);
errno = ENOMEM;
return -1;
}
return 0;
}
NBDKIT_DLL_PUBLIC int
nbdkit_use_default_export (struct nbdkit_exports *exps)
{
exps->use_default = true;
return 0;
}
int
exports_resolve_default (struct nbdkit_exports *exps, struct backend *b,
int readonly)
{
const char *def = NULL;
if (exps->use_default) {
def = backend_default_export (b, readonly);
exps->use_default = false;
}
if (def)
return nbdkit_add_export (exps, def, NULL);
return 0;
}
nbdkit-1.42.2/server/extents.c 0000644 0001750 0001750 00000024723 14534316443 011717 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "cleanup.h"
#include "isaligned.h"
#include "minmax.h"
#include "rounding.h"
#include "vector.h"
#include "internal.h"
/* Cap nr_extents to avoid sending over-large replies to the client,
* and to avoid a plugin with frequent alternations consuming too much
* memory.
*/
#define MAX_EXTENTS (1 * 1024 * 1024)
/* Appendable list of extents. */
DEFINE_VECTOR_TYPE (extents, struct nbdkit_extent);
struct nbdkit_extents {
extents extents;
uint64_t start, end; /* end is one byte beyond the end of the range */
/* Where we expect the next extent to be added. If
* nbdkit_add_extent has never been called this is -1. Note this
* field is updated even if we don't actually add the extent because
* it's used to check for API violations.
*/
int64_t next;
};
NBDKIT_DLL_PUBLIC struct nbdkit_extents *
nbdkit_extents_new (uint64_t start, uint64_t end)
{
struct nbdkit_extents *r;
if (start > INT64_MAX || end > INT64_MAX) {
nbdkit_error ("nbdkit_extents_new: "
"start (%" PRIu64 ") or end (%" PRIu64 ") > INT64_MAX",
start, end);
errno = ERANGE;
return NULL;
}
/* 0-length ranges are possible, so start == end is not an error. */
if (start > end) {
nbdkit_error ("nbdkit_extents_new: "
"start (%" PRIu64 ") >= end (%" PRIu64 ")",
start, end);
errno = ERANGE;
return NULL;
}
r = malloc (sizeof *r);
if (r == NULL) {
nbdkit_error ("nbdkit_extents_new: malloc: %m");
return NULL;
}
r->extents = (extents) empty_vector;
r->start = start;
r->end = end;
r->next = -1;
return r;
}
NBDKIT_DLL_PUBLIC void
nbdkit_extents_free (struct nbdkit_extents *exts)
{
if (exts) {
free (exts->extents.ptr);
free (exts);
}
}
NBDKIT_DLL_PUBLIC size_t
nbdkit_extents_count (const struct nbdkit_extents *exts)
{
return exts->extents.len;
}
NBDKIT_DLL_PUBLIC struct nbdkit_extent
nbdkit_get_extent (const struct nbdkit_extents *exts, size_t i)
{
assert (i < exts->extents.len);
return exts->extents.ptr[i];
}
/* Insert *e in the list at the end. */
static int
append_extent (struct nbdkit_extents *exts, const struct nbdkit_extent *e)
{
if (extents_append (&exts->extents, *e) == -1) {
nbdkit_error ("nbdkit_add_extent: realloc: %m");
return -1;
}
return 0;
}
NBDKIT_DLL_PUBLIC int
nbdkit_add_extent (struct nbdkit_extents *exts,
uint64_t offset, uint64_t length, uint32_t type)
{
uint64_t overlap;
/* Extents must be added in strictly ascending, contiguous order. */
if (exts->next >= 0 && exts->next != offset) {
nbdkit_error ("nbdkit_add_extent: "
"extents must be added in ascending order and "
"must be contiguous");
errno = ERANGE;
return -1;
}
exts->next = offset + length;
/* Ignore zero-length extents. */
if (length == 0)
return 0;
/* Ignore extents beyond the end of the range, or if list is full. */
if (offset >= exts->end || exts->extents.len >= MAX_EXTENTS)
return 0;
/* Shorten extents that overlap the end of the range. */
if (offset + length > exts->end) {
overlap = offset + length - exts->end;
length -= overlap;
}
if (exts->extents.len == 0) {
/* If there are no existing extents, and the new extent is
* entirely before start, ignore it.
*/
if (offset + length <= exts->start)
return 0;
/* If there are no existing extents, and the new extent is after
* start, then this is a bug in the plugin.
*/
if (offset > exts->start) {
nbdkit_error ("nbdkit_add_extent: "
"first extent must not be > start (%" PRIu64 ")",
exts->start);
errno = ERANGE;
return -1;
}
/* If there are no existing extents, and the new extent overlaps
* start, truncate it so it starts at start.
*/
overlap = exts->start - offset;
length -= overlap;
offset += overlap;
}
/* If we get here we are going to either add or extend. */
if (exts->extents.len > 0 &&
exts->extents.ptr[exts->extents.len-1].type == type) {
/* Coalesce with the last extent. */
exts->extents.ptr[exts->extents.len-1].length += length;
return 0;
}
else {
/* Add a new extent. */
const struct nbdkit_extent e =
{ .offset = offset, .length = length, .type = type };
return append_extent (exts, &e);
}
}
/* Compute aligned extents on behalf of a filter. */
NBDKIT_DLL_PUBLIC int
nbdkit_extents_aligned (struct context *next_c,
uint32_t count, uint64_t offset,
uint32_t flags, uint32_t align,
struct nbdkit_extents *exts, int *err)
{
struct nbdkit_next_ops *next = &next_c->next;
size_t i;
struct nbdkit_extent *e, *e2;
assert (IS_ALIGNED (count | offset, align));
/* Perform an initial query, then scan for the first unaligned extent. */
if (next->extents (next_c, count, offset, flags, exts, err) == -1)
return -1;
for (i = 0; i < exts->extents.len; ++i) {
e = &exts->extents.ptr[i];
if (!IS_ALIGNED (e->length, align)) {
/* If the unalignment is past align, just truncate and return early */
if (e->offset + e->length > offset + align) {
e->length = ROUND_DOWN (e->length, align);
exts->extents.len = i + !!e->length;
exts->next = e->offset + e->length;
break;
}
/* Otherwise, coalesce until we have at least align bytes, which
* may require further queries. The type bits are:
* NBDKIT_EXTENT_HOLE (1<<0)
* NBDKIT_EXTENT_ZERO (1<<1)
* and the NBD protocol says any future bits will also have the
* desired property that returning '0' is the safe default for
* the generic case. Thus, performing the bitwise-and
* intersection of the types of underlying extents gives the
* correct type for our merged extent.
*/
assert (i == 0);
while (e->length < align) {
if (exts->extents.len > 1) {
e->length += exts->extents.ptr[1].length;
e->type &= exts->extents.ptr[1].type;
extents_remove (&exts->extents, 1);
}
else {
/* The plugin needs a fresh extents object each time, but
* with care, we can merge it into the callers' exts.
*/
extents tmp;
CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents2 = NULL;
extents2 = nbdkit_extents_new (e->offset + e->length,
offset + align);
if (extents2 == NULL) {
*err = errno;
return -1;
}
if (next->extents (next_c, align - e->length,
offset + e->length,
flags & ~NBDKIT_FLAG_REQ_ONE,
extents2, err) == -1)
return -1;
e2 = &extents2->extents.ptr[0];
assert (e2->offset == e->offset + e->length);
e2->offset = e->offset;
e2->length += e->length;
e2->type &= e->type;
e = e2;
tmp = exts->extents;
exts->extents = extents2->extents;
extents2->extents = tmp;
}
}
e->length = align;
exts->extents.len = 1;
exts->next = e->offset + e->length;
break;
}
}
/* Once we get here, all extents are aligned. */
return 0;
}
/* This is a convenient wrapper around next_ops->extents which can be
* used from filters where you want to get a complete set of extents
* covering the region [offset..offset+count-1].
*/
NBDKIT_DLL_PUBLIC struct nbdkit_extents *
nbdkit_extents_full (struct context *next_c,
uint32_t count, uint64_t offset, uint32_t flags,
int *err)
{
struct nbdkit_next_ops *next = &next_c->next;
struct nbdkit_extents *ret;
/* Clear REQ_ONE to ask the plugin for as much information as it is
* willing to return (the plugin may still truncate if it is too
* costly to provide everything).
*/
flags &= ~NBDKIT_FLAG_REQ_ONE;
ret = nbdkit_extents_new (offset, offset+count);
if (ret == NULL) goto error0;
while (count > 0) {
const uint64_t old_offset = offset;
size_t i;
CLEANUP_EXTENTS_FREE struct nbdkit_extents *t
= nbdkit_extents_new (offset, offset+count);
if (t == NULL) goto error1;
if (next->extents (next_c, count, offset, flags, t, err) == -1)
goto error0;
for (i = 0; i < nbdkit_extents_count (t); ++i) {
const struct nbdkit_extent e = nbdkit_get_extent (t, i);
if (nbdkit_add_extent (ret, e.offset, e.length, e.type) == -1)
goto error1;
assert (e.length <= count);
offset += e.length;
count -= e.length;
}
/* If the plugin is behaving we must make forward progress. */
assert (offset > old_offset);
}
return ret;
error1:
*err = errno;
error0:
nbdkit_extents_free (ret);
return NULL;
}
nbdkit-1.42.2/server/filters.c 0000644 0001750 0001750 00000051756 14534316443 011703 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include "internal.h"
/* We extend the generic backend struct with extra fields relating
* to this filter.
*/
struct backend_filter {
struct backend backend;
struct nbdkit_filter filter;
};
/* Note this frees the whole chain. */
static void
filter_free (struct backend *b)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
b->next->free (b->next);
backend_unload (b, f->filter.unload);
free (f);
}
static int
filter_thread_model (struct backend *b)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
int filter_thread_model = NBDKIT_THREAD_MODEL_PARALLEL;
int model = b->next->thread_model (b->next);
if (f->filter.thread_model) {
filter_thread_model = f->filter.thread_model ();
if (filter_thread_model == -1)
exit (EXIT_FAILURE);
}
if (filter_thread_model < model) /* more serialized */
model = filter_thread_model;
return model;
}
/* This is actually passing the request through to the final plugin,
* hence the function name.
*/
static const char *
plugin_name (struct backend *b)
{
return b->next->plugin_name (b->next);
}
static const char *
filter_version (struct backend *b)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
return f->filter._version;
}
static void
filter_usage (struct backend *b)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
const char *p;
printf ("filter: %s", b->name);
if (f->filter.longname)
printf (" (%s)", f->filter.longname);
printf ("\n");
printf ("(%s)\n", b->filename);
if (f->filter.description) {
printf ("%s", f->filter.description);
if ((p = strrchr (f->filter.description, '\n')) == NULL || p[1])
printf ("\n");
}
if (f->filter.config_help) {
printf ("%s", f->filter.config_help);
if ((p = strrchr (f->filter.config_help, '\n')) == NULL || p[1])
printf ("\n");
}
}
/* This implements the --dump-plugin option which can dump additional
* fields for any filters present.
*/
static void
filter_dump_fields (struct backend *b)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
char *path;
b->next->dump_fields (b->next);
debug ("%s: dump_plugin", b->name);
/* Dump some information about the filter. */
path = nbdkit_realpath (b->filename);
printf ("%s_path=%s\n", b->name, path);
free (path);
printf ("%s_name=%s\n", b->name, b->name);
/* We could add filter struct fields here, but they are not so
* interesting for filters because they are always tied to the exact
* current version of nbdkit so we can determine which fields are
* present just by looking at the source.
*/
/* Custom fields. */
if (f->filter.dump_plugin) {
f->filter.dump_plugin ();
}
}
static int
next_config (struct backend *b, const char *key, const char *value)
{
b->config (b, key, value);
return 0;
}
static void
filter_config (struct backend *b, const char *key, const char *value)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
debug ("%s: config key=%s, value=%s",
b->name, key, value);
if (f->filter.config) {
if (f->filter.config (next_config, b->next, key, value) == -1)
exit (EXIT_FAILURE);
}
else
b->next->config (b->next, key, value);
}
static int
next_config_complete (struct backend *b)
{
b->config_complete (b);
return 0;
}
static void
filter_config_complete (struct backend *b)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
debug ("%s: config_complete", b->name);
if (f->filter.config_complete) {
if (f->filter.config_complete (next_config_complete, b->next) == -1)
exit (EXIT_FAILURE);
}
else
b->next->config_complete (b->next);
}
static void
filter_get_ready (struct backend *b)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
b->next->get_ready (b->next); /* exits on failure */
debug ("%s: get_ready thread_model=%d", b->name, thread_model);
if (f->filter.get_ready) {
if (f->filter.get_ready (thread_model) == -1)
exit (EXIT_FAILURE);
}
}
static void
filter_after_fork (struct backend *b)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
b->next->after_fork (b->next); /* exits on failure */
debug ("%s: after_fork", b->name);
if (f->filter.after_fork) {
if (f->filter.after_fork (b->next) == -1)
exit (EXIT_FAILURE);
}
}
static void
filter_cleanup (struct backend *b)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
debug ("%s: cleanup", b->name);
if (f->filter.cleanup)
f->filter.cleanup (b->next);
b->next->cleanup (b->next);
}
static int
filter_preconnect (struct backend *b, int readonly)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
debug ("%s: preconnect", b->name);
if (f->filter.preconnect)
return f->filter.preconnect (b->next->preconnect, b->next, readonly);
else
return b->next->preconnect (b->next, readonly);
}
/* magic_config_key only applies to plugins, so this passes the
* request through to the plugin (hence the name).
*/
static const char *
plugin_magic_config_key (struct backend *b)
{
return b->next->magic_config_key (b->next);
}
static int
filter_list_exports (struct backend *b, int readonly, int is_tls,
struct nbdkit_exports *exports)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
if (f->filter.list_exports)
return f->filter.list_exports (backend_list_exports, b->next,
readonly, is_tls, exports);
return backend_list_exports (b->next, readonly, exports);
}
static const char *
filter_default_export (struct backend *b, int readonly, int is_tls)
{
struct backend_filter *f = container_of (b, struct backend_filter, backend);
if (f->filter.default_export)
return f->filter.default_export (backend_default_export, b->next,
readonly, is_tls);
return backend_default_export (b->next, readonly);
}
static int
next_open (struct context *c, int readonly, const char *exportname)
{
struct backend *b = nbdkit_context_get_backend (c);
struct context *c_next = nbdkit_next_context_open (b, readonly, exportname,
false);
struct context *old;
if (c_next == NULL)
return -1;
old = nbdkit_context_set_next (c, c_next);
assert (old == NULL);
return 0;
}
static void *
filter_open (struct context *c, int readonly, const char *exportname,
int is_tls)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
void *handle;
/* Most filters will call next_open first, resulting in
* inner-to-outer ordering.
*/
if (f->filter.open)
handle = f->filter.open (next_open, c, readonly, exportname,
is_tls);
else if (next_open (c, readonly, exportname) == -1)
handle = NULL;
else
handle = NBDKIT_HANDLE_NOT_NEEDED;
return handle;
}
static void
filter_close (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
assert (c->handle);
if (f->filter.close)
f->filter.close (c->handle);
}
static int
filter_prepare (struct context *c, int readonly)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.prepare &&
f->filter.prepare (c_next, c->handle, readonly) == -1)
return -1;
return 0;
}
static int
filter_finalize (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.finalize &&
f->filter.finalize (c_next, c->handle) == -1)
return -1;
return 0;
}
static const char *
filter_export_description (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.export_description)
return f->filter.export_description (c_next, c->handle);
else
return backend_export_description (c_next);
}
static int64_t
filter_get_size (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.get_size)
return f->filter.get_size (c_next, c->handle);
else
return backend_get_size (c_next);
}
static int
filter_block_size (struct context *c,
uint32_t *minimum, uint32_t *preferred, uint32_t *maximum)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.block_size)
return f->filter.block_size (c_next, c->handle,
minimum, preferred, maximum);
else
return backend_block_size (c_next,
minimum, preferred, maximum);
}
static int
filter_can_write (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.can_write)
return f->filter.can_write (c_next, c->handle);
else
return backend_can_write (c_next);
}
static int
filter_can_flush (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.can_flush)
return f->filter.can_flush (c_next, c->handle);
else
return backend_can_flush (c_next);
}
static int
filter_is_rotational (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.is_rotational)
return f->filter.is_rotational (c_next, c->handle);
else
return backend_is_rotational (c_next);
}
static int
filter_can_trim (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.can_trim)
return f->filter.can_trim (c_next, c->handle);
else
return backend_can_trim (c_next);
}
static int
filter_can_zero (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.can_zero)
return f->filter.can_zero (c_next, c->handle);
else
return backend_can_zero (c_next);
}
static int
filter_can_fast_zero (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.can_fast_zero)
return f->filter.can_fast_zero (c_next, c->handle);
else
return backend_can_fast_zero (c_next);
}
static int
filter_can_extents (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.can_extents)
return f->filter.can_extents (c_next, c->handle);
else
return backend_can_extents (c_next);
}
static int
filter_can_fua (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.can_fua)
return f->filter.can_fua (c_next, c->handle);
else
return backend_can_fua (c_next);
}
static int
filter_can_multi_conn (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.can_multi_conn)
return f->filter.can_multi_conn (c_next, c->handle);
else
return backend_can_multi_conn (c_next);
}
static int
filter_can_cache (struct context *c)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.can_cache)
return f->filter.can_cache (c_next, c->handle);
else
return backend_can_cache (c_next);
}
static int
filter_pread (struct context *c,
void *buf, uint32_t count, uint64_t offset,
uint32_t flags, int *err)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.pread)
return f->filter.pread (c_next, c->handle,
buf, count, offset, flags, err);
else
return backend_pread (c_next, buf, count, offset, flags, err);
}
static int
filter_pwrite (struct context *c,
const void *buf, uint32_t count, uint64_t offset,
uint32_t flags, int *err)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.pwrite)
return f->filter.pwrite (c_next, c->handle,
buf, count, offset, flags, err);
else
return backend_pwrite (c_next, buf, count, offset, flags, err);
}
static int
filter_flush (struct context *c,
uint32_t flags, int *err)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.flush)
return f->filter.flush (c_next, c->handle, flags, err);
else
return backend_flush (c_next, flags, err);
}
static int
filter_trim (struct context *c,
uint32_t count, uint64_t offset,
uint32_t flags, int *err)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.trim)
return f->filter.trim (c_next, c->handle, count, offset,
flags, err);
else
return backend_trim (c_next, count, offset, flags, err);
}
static int
filter_zero (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags, int *err)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.zero)
return f->filter.zero (c_next, c->handle,
count, offset, flags, err);
else
return backend_zero (c_next, count, offset, flags, err);
}
static int
filter_extents (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags,
struct nbdkit_extents *extents, int *err)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.extents)
return f->filter.extents (c_next, c->handle,
count, offset, flags,
extents, err);
else
return backend_extents (c_next, count, offset, flags,
extents, err);
}
static int
filter_cache (struct context *c,
uint32_t count, uint64_t offset,
uint32_t flags, int *err)
{
struct backend *b = c->b;
struct backend_filter *f = container_of (b, struct backend_filter, backend);
struct context *c_next = c->c_next;
if (f->filter.cache)
return f->filter.cache (c_next, c->handle,
count, offset, flags, err);
else
return backend_cache (c_next, count, offset, flags, err);
}
static struct backend filter_functions = {
.free = filter_free,
.thread_model = filter_thread_model,
.plugin_name = plugin_name,
.usage = filter_usage,
.version = filter_version,
.dump_fields = filter_dump_fields,
.config = filter_config,
.config_complete = filter_config_complete,
.magic_config_key = plugin_magic_config_key,
.get_ready = filter_get_ready,
.after_fork = filter_after_fork,
.cleanup = filter_cleanup,
.preconnect = filter_preconnect,
.list_exports = filter_list_exports,
.default_export = filter_default_export,
.open = filter_open,
.prepare = filter_prepare,
.finalize = filter_finalize,
.close = filter_close,
.export_description = filter_export_description,
.get_size = filter_get_size,
.block_size = filter_block_size,
.can_write = filter_can_write,
.can_flush = filter_can_flush,
.is_rotational = filter_is_rotational,
.can_trim = filter_can_trim,
.can_zero = filter_can_zero,
.can_fast_zero = filter_can_fast_zero,
.can_extents = filter_can_extents,
.can_fua = filter_can_fua,
.can_multi_conn = filter_can_multi_conn,
.can_cache = filter_can_cache,
.pread = filter_pread,
.pwrite = filter_pwrite,
.flush = filter_flush,
.trim = filter_trim,
.zero = filter_zero,
.extents = filter_extents,
.cache = filter_cache,
};
/* Register and load a filter. */
struct backend *
filter_register (struct backend *next, size_t index, const char *filename,
void *dl, filter_init_function filter_init)
{
struct backend_filter *f;
const struct nbdkit_filter *filter;
f = calloc (1, sizeof *f);
if (f == NULL) {
perror ("strdup");
exit (EXIT_FAILURE);
}
f->backend = filter_functions;
backend_init (&f->backend, next, index, filename, dl, "filter");
/* Call the initialization function which returns the address of the
* filter's own 'struct nbdkit_filter'.
*/
filter = filter_init ();
if (!filter) {
fprintf (stderr, "%s: %s: filter registration function failed\n",
program_name, filename);
exit (EXIT_FAILURE);
}
/* We do not provide API or ABI guarantees for filters, other than
* the ABI position and API contents of _api_version and _version to
* diagnose mismatch from the current nbdkit version.
*/
if (filter->_api_version != NBDKIT_FILTER_API_VERSION) {
fprintf (stderr,
"%s: %s: filter is incompatible with this version of nbdkit "
"(_api_version = %d, need %d)\n",
program_name, filename, filter->_api_version,
NBDKIT_FILTER_API_VERSION);
exit (EXIT_FAILURE);
}
if (filter->_version == NULL ||
strcmp (filter->_version, PACKAGE_VERSION) != 0) {
fprintf (stderr,
"%s: %s: filter is incompatible with this version of nbdkit "
"(_version = %s, need %s)\n",
program_name, filename, filter->_version ?: "",
PACKAGE_VERSION);
exit (EXIT_FAILURE);
}
f->filter = *filter;
backend_load (&f->backend, f->filter.name, f->filter.load);
return (struct backend *) f;
}
NBDKIT_DLL_PUBLIC struct backend *
nbdkit_context_get_backend (struct context *c)
{
assert (c);
return c->b->next;
}
NBDKIT_DLL_PUBLIC struct context *
nbdkit_next_context_open (struct backend *b,
int readonly, const char *exportname, int shared)
{
struct context *c = threadlocal_get_context ();
assert (b);
assert (!c || b == c->b->next);
return backend_open (b, readonly, exportname, shared || !c || !c->conn);
}
NBDKIT_DLL_PUBLIC void
nbdkit_next_context_close (struct context *c)
{
if (c)
backend_close (c);
}
NBDKIT_DLL_PUBLIC struct context *
nbdkit_context_set_next (struct context *c, struct context *next)
{
struct context *old;
assert (c);
if (next)
assert (next->b == c->b->next);
old = c->c_next;
c->c_next = next;
return old;
}
nbdkit-1.42.2/server/internal.h 0000644 0001750 0001750 00000053774 14771245250 012056 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef NBDKIT_INTERNAL_H
#define NBDKIT_INTERNAL_H
#include
#include
#include
#include
#ifdef HAVE_SYS_SOCKET_H
#include
#endif
/* Do we have the --timeout option?
*
* OpenBSD defines timer_create as a function that returns -ENOSYS,
* which breaks configure. So we have to check for SIGEV_THREAD being
* defined as well.
* https://github.com/openbsd/src/blob/master/lib/libc/sys/timer_create.c
*/
#include
#include
#if defined(HAVE_TIMER_CREATE) && defined(SIGEV_THREAD)
#define HAVE_TIMEOUT_OPTION 1
#endif
/* Server supports API versions between 1 and MAX_API_VERSION */
#define MAX_API_VERSION 2
#define NBDKIT_API_VERSION MAX_API_VERSION
#define NBDKIT_INTERNAL
#include "nbdkit-plugin.h"
#include "nbdkit-filter.h"
#include "cleanup.h"
#include "nbd-protocol.h"
#include "string-vector.h"
#include "unix-path-max.h"
#include "vector.h"
#include "windows-compat.h"
/* Define unlikely macro, but only for GCC. These are used to move
* debug and error handling code out of hot paths.
*/
#if defined (__GNUC__)
#define unlikely(x) __builtin_expect (!!(x), 0)
#define if_verbose if (unlikely (verbose))
#else
#define unlikely(x) (x)
#define if_verbose if (verbose)
#endif
#if defined (__SANITIZE_ADDRESS__)
# define DO_DLCLOSE 0
#elif ENABLE_LIBFUZZER
/* XXX This causes dlopen in the server to leak during fuzzing.
* However it is necessary because of
* https://bugs.llvm.org/show_bug.cgi?id=43917
*/
# define DO_DLCLOSE 0
#else
# if HAVE_VALGRIND
# include
/* http://valgrind.org/docs/manual/faq.html#faq.unhelpful */
# define DO_DLCLOSE !RUNNING_ON_VALGRIND
# else
# define DO_DLCLOSE 1
# endif
#endif
/* Declare program_name. */
#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1
#include
#define program_name program_invocation_short_name
#else
#define program_name "nbdkit"
#endif
#define container_of(ptr, type, member) ({ \
const typeof (((type *) 0)->member) *__mptr = (ptr); \
(type *) ((char *) __mptr - offsetof (type, member)); \
})
/* Maximum read or write request that we will handle. */
#define MAX_REQUEST_SIZE (64 * 1024 * 1024)
/* main.c */
enum log_to {
LOG_TO_DEFAULT, /* --log not specified: log to stderr, unless
we forked into the background in which
case log to syslog */
LOG_TO_STDERR, /* --log=stderr forced on the command line */
LOG_TO_SYSLOG, /* --log=syslog forced on the command line */
LOG_TO_NULL, /* --log=null forced on the command line */
};
enum service_mode {
/* These two modes cannot form an NBD URI: */
SERVICE_MODE_SOCKET_ACTIVATION, /* socket activation. */
SERVICE_MODE_LISTEN_STDIN, /* -s */
SERVICE_MODE_UNIXSOCKET, /* -U */
SERVICE_MODE_VSOCK, /* --vsock */
SERVICE_MODE_TCPIP, /* --port */
};
extern const char *service_mode_string (enum service_mode);
extern int tcpip_sock_af;
extern struct debug_flag *debug_flags;
extern const char *export_name;
extern bool foreground;
extern const char *ipaddr;
extern bool keepalive;
extern enum log_to log_to;
extern unsigned mask_handshake;
extern bool newstyle;
extern bool no_mc;
extern bool no_sr;
extern const char *port;
extern bool print_uri;
extern bool read_only;
extern const char *run;
extern bool listen_stdin;
extern const char *selinux_label;
extern unsigned threads;
extern unsigned timeout_secs, timeout_nsecs;
extern int tls;
extern const char *tls_certificates_dir;
extern const char *tls_psk;
extern bool tls_verify_peer;
extern char *unixsocket;
extern const char *user, *group;
extern bool verbose;
extern bool vsock;
extern enum service_mode service_mode;
extern char *uri;
extern bool configured;
extern int saved_stdin;
extern int saved_stdout;
extern struct backend *top;
#define for_each_backend(b) for (b = top; b != NULL; b = b->next)
/* debug.c */
#define debug(fs, ...) \
do { \
if_verbose \
debug_in_server ((fs), ##__VA_ARGS__); \
} while (0)
extern void debug_in_server (const char *msg, ...)
ATTRIBUTE_FORMAT_PRINTF (1, 2);
/* quit.c */
extern volatile int quit;
#ifndef WIN32
extern int quit_fd;
#else
extern HANDLE quit_fd;
#endif
extern void set_up_quit_pipe (void);
extern void close_quit_pipe (void);
extern void handle_quit (int sig);
/* signals.c */
extern void set_up_signals (void);
/* background.c */
extern bool forked_into_background;
extern void fork_into_background (void);
/* captive.c */
extern void run_command (void);
/* socket-activation.c */
#define FIRST_SOCKET_ACTIVATION_FD 3 /* defined by systemd ABI */
extern unsigned int get_socket_activation (void);
/* timeout.c */
struct connection;
extern int start_timeout (struct connection *conn)
__attribute__ ((__nonnull__ (1)));
extern void cancel_timeout (struct connection *conn)
__attribute__ ((__nonnull__ (1)));
/* usergroup.c */
extern void change_user (void);
/* uri.c */
extern char *make_uri (void);
/* connections.c */
/* Flags for connection_send_function */
enum {
SEND_MORE = 1, /* Hint to use MSG_MORE/corking to group send()s */
};
typedef int (*connection_recv_function) (void *buf, size_t len)
__attribute__ ((__nonnull__ (1)));
typedef int (*connection_send_function) (const void *buf, size_t len,
int flags)
__attribute__ ((__nonnull__ (1)));
typedef void (*connection_close_function) (int how);
/* struct context stores data per connection and backend. Primarily
* this is the filter or plugin handle, but other state is also stored
* here.
*/
enum {
HANDLE_OPEN = 1, /* Set if .open passed, so .close is needed */
HANDLE_CONNECTED = 2, /* Set if .prepare passed, so .finalize is needed */
HANDLE_FAILED = 4, /* Set if .finalize failed */
};
struct context {
struct nbdkit_next_ops next; /* Must be first member, for ABI reasons */
uint64_t magic; /* Magic number used to validate struct. */
#define CONTEXT_MAGIC 0xc011
void *handle; /* Plugin or filter handle. */
struct backend *b; /* Backend that provided handle. */
struct context *c_next; /* Underlying context, only when b->next != NULL. */
struct connection *conn; /* Active connection at context creation, if any. */
unsigned char state; /* Bitmask of HANDLE_* values */
uint64_t exportsize;
uint32_t minimum_block_size;
uint32_t preferred_block_size;
uint32_t maximum_block_size;
int can_write;
int can_flush;
int is_rotational;
int can_trim;
int can_zero;
int can_fast_zero;
int can_fua;
int can_multi_conn;
int can_extents;
int can_cache;
};
typedef enum {
STATUS_DEAD, /* Connection is closed */
STATUS_CLIENT_DONE, /* Client has sent NBD_CMD_DISC */
STATUS_SHUTDOWN, /* Server wants soft shutdown */
STATUS_ACTIVE, /* Client can make requests */
} conn_status;
struct connection {
uint64_t magic; /* Magic number used to validate struct. */
#define CONN_MAGIC 0xc05
/* Listed in precedence order: do not grab earlier locks in this list
* while holding a later lock.
*/
pthread_mutex_t request_lock; /* Forces serialization of requests */
pthread_mutex_t read_lock; /* Read entire client payload off wire */
pthread_mutex_t write_lock; /* Protect sockout, write response to wire */
pthread_mutex_t status_lock; /* Track current status of client */
conn_status status;
int status_pipe[2]; /* track status changes via poll when nworkers > 1 */
void *crypto_session;
int nworkers;
struct context *top_context; /* The context tied to 'top'. */
char **default_exportname; /* One per plugin and filter. */
uint32_t cflags;
uint16_t eflags;
bool handshake_complete;
#ifdef HAVE_TIMEOUT_OPTION
timer_t timer;
bool timer_set;
#endif
bool using_tls;
bool structured_replies;
bool meta_context_base_allocation;
string_vector interns;
char *exportname_from_set_meta_context;
const char *exportname;
int sockin, sockout;
/* If nworkers > 1, only call this while read_lock is held */
connection_recv_function recv;
/* If nworkers > 1, only call these while write_lock is held */
connection_send_function send;
connection_close_function close;
};
extern void handle_single_connection (int sockin, int sockout);
extern conn_status connection_get_status (void);
extern bool connection_set_status (conn_status value);
/* protocol-handshake.c */
extern int protocol_handshake (void);
extern int protocol_common_open (uint64_t *exportsize, uint16_t *flags,
const char *exportname)
__attribute__ ((__nonnull__ (1, 2, 3)));
/* protocol-handshake-oldstyle.c */
extern int protocol_handshake_oldstyle (void);
/* protocol-handshake-newstyle.c */
extern int protocol_handshake_newstyle (void);
/* protocol.c */
extern bool protocol_recv_request_send_reply (void);
/* The context ID of base:allocation. As far as I can tell it doesn't
* matter what this is as long as nbdkit always returns the same
* number.
*/
#define base_allocation_id 1
/* public.c */
extern void free_interns (void);
/* crypto.c */
#define root_tls_certificates_dir sysconfdir "/pki/" PACKAGE_NAME
extern void crypto_init (bool tls_set_on_cli);
extern void crypto_free (void);
extern int crypto_negotiate_tls (int sockin, int sockout);
/* debug-flags.c */
extern void add_debug_flag (const char *arg);
extern void apply_debug_flags (void *dl, const char *name);
extern void free_debug_flags (void);
/* log.c */
extern void log_verror (const char *fs, va_list args);
/* log-*.c */
extern void log_stderr_verror (int orig_errno, const char *fs, va_list args)
ATTRIBUTE_FORMAT_PRINTF (2, 0);
extern void log_syslog_verror (int orig_errno, const char *fs, va_list args)
ATTRIBUTE_FORMAT_PRINTF (2, 0);
/* vfprintf.c */
#if !HAVE_VFPRINTF_PERCENT_M
#include
#define vfprintf replace_vfprintf
extern int replace_vfprintf (FILE *f, const char *fmt, va_list args)
__attribute__ ((__format__ (printf, 2, 0)));
#endif
/* backend.c */
struct backend {
uint64_t magic; /* Magic number used to validate struct. */
#define BACKEND_MAGIC 0xbac
/* Next filter or plugin in the chain. This is always NULL for
* plugins and never NULL for filters.
*/
struct backend *next;
/* A unique index used to fetch the handle from the connections
* object. The plugin (last in the chain) has index 0, and the
* filters have index 1, 2, ... depending how "far" they are from
* the plugin.
*/
size_t i;
/* The type of backend: filter or plugin. */
const char *type;
/* A copy of the backend name that survives a dlclose. */
char *name;
/* The file the backend was loaded from. */
char *filename;
/* The dlopen handle for the backend. */
void *dl;
/* Backend callbacks. All are required. */
void (*free) (struct backend *);
int (*thread_model) (struct backend *);
const char *(*plugin_name) (struct backend *);
void (*usage) (struct backend *);
const char *(*version) (struct backend *);
void (*dump_fields) (struct backend *);
void (*config) (struct backend *, const char *key, const char *value);
void (*config_complete) (struct backend *);
const char *(*magic_config_key) (struct backend *);
void (*get_ready) (struct backend *);
void (*after_fork) (struct backend *);
void (*cleanup) (struct backend *);
int (*preconnect) (struct backend *, int readonly);
int (*list_exports) (struct backend *, int readonly, int is_tls,
struct nbdkit_exports *exports);
const char *(*default_export) (struct backend *, int readonly, int is_tls);
void *(*open) (struct context *, int readonly, const char *exportname,
int is_tls);
int (*prepare) (struct context *, int readonly);
int (*finalize) (struct context *);
void (*close) (struct context *);
const char *(*export_description) (struct context *);
int64_t (*get_size) (struct context *);
int (*block_size) (struct context *,
uint32_t *minimum, uint32_t *preferred, uint32_t *maximum);
int (*can_write) (struct context *);
int (*can_flush) (struct context *);
int (*is_rotational) (struct context *);
int (*can_trim) (struct context *);
int (*can_zero) (struct context *);
int (*can_fast_zero) (struct context *);
int (*can_extents) (struct context *);
int (*can_fua) (struct context *);
int (*can_multi_conn) (struct context *);
int (*can_cache) (struct context *);
int (*pread) (struct context *,
void *buf, uint32_t count, uint64_t offset,
uint32_t flags, int *err);
int (*pwrite) (struct context *,
const void *buf, uint32_t count, uint64_t offset,
uint32_t flags, int *err);
int (*flush) (struct context *, uint32_t flags, int *err);
int (*trim) (struct context *,
uint32_t count, uint64_t offset, uint32_t flags, int *err);
int (*zero) (struct context *,
uint32_t count, uint64_t offset, uint32_t flags, int *err);
int (*extents) (struct context *,
uint32_t count, uint64_t offset, uint32_t flags,
struct nbdkit_extents *extents, int *err);
int (*cache) (struct context *,
uint32_t count, uint64_t offset, uint32_t flags, int *err);
};
extern void backend_init (struct backend *b, struct backend *next, size_t index,
const char *filename, void *dl, const char *type)
__attribute__ ((__nonnull__ (1, 4, 5, 6)));
extern void backend_load (struct backend *b, const char *name,
void (*load) (void))
__attribute__ ((__nonnull__ (1 /* not 2 */)));
extern void backend_unload (struct backend *b, void (*unload) (void))
__attribute__ ((__nonnull__ (1)));
extern int backend_list_exports (struct backend *b, int readonly,
struct nbdkit_exports *exports)
__attribute__ ((__nonnull__ (1, 3)));
extern const char *backend_default_export (struct backend *b, int readonly)
__attribute__ ((__nonnull__ (1)));
/* exportname is only valid for this call and almost certainly will be
* freed on return of this function, so backends must save the
* exportname if they need to refer to it later.
*/
extern struct context *backend_open (struct backend *b,
int readonly, const char *exportname,
int shared)
__attribute__ ((__nonnull__ (1, 3)));
extern int backend_prepare (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_finalize (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern void backend_close (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern bool backend_valid_range (struct context *c,
uint64_t offset, uint32_t count)
__attribute__ ((__nonnull__ (1)));
extern const char *backend_export_description (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int64_t backend_get_size (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_block_size (struct context *c,
uint32_t *minimum, uint32_t *preferred,
uint32_t *maximum)
__attribute__ ((__nonnull__ (1, 2, 3, 4)));
extern int backend_can_write (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_can_flush (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_is_rotational (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_can_trim (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_can_zero (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_can_fast_zero (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_can_extents (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_can_fua (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_can_multi_conn (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_can_cache (struct context *c)
__attribute__ ((__nonnull__ (1)));
extern int backend_pread (struct context *c,
void *buf, uint32_t count, uint64_t offset,
uint32_t flags, int *err)
__attribute__ ((__nonnull__ (1, 2, 6)));
extern int backend_pwrite (struct context *c,
const void *buf, uint32_t count, uint64_t offset,
uint32_t flags, int *err)
__attribute__ ((__nonnull__ (1, 2, 6)));
extern int backend_flush (struct context *c,
uint32_t flags, int *err)
__attribute__ ((__nonnull__ (1, 3)));
extern int backend_trim (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags,
int *err)
__attribute__ ((__nonnull__ (1, 5)));
extern int backend_zero (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags,
int *err)
__attribute__ ((__nonnull__ (1, 5)));
extern int backend_extents (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags,
struct nbdkit_extents *extents, int *err)
__attribute__ ((__nonnull__ (1, 5, 6)));
extern int backend_cache (struct context *c,
uint32_t count, uint64_t offset,
uint32_t flags, int *err)
__attribute__ ((__nonnull__ (1, 5)));
/* plugins.c */
typedef struct nbdkit_plugin *(*plugin_init_function) (void);
extern struct backend *plugin_register (size_t index, const char *filename,
void *dl,
plugin_init_function plugin_init)
__attribute__ ((__nonnull__ (2, 3, 4)));
/* filters.c */
typedef struct nbdkit_filter *(*filter_init_function) (void);
extern struct backend *filter_register (struct backend *next, size_t index,
const char *filename, void *dl,
filter_init_function filter_init)
__attribute__ ((__nonnull__ (1, 3, 4, 5)));
/* locks.c */
extern unsigned thread_model;
extern void lock_init_thread_model (void);
extern const char *name_of_thread_model (int model);
extern void lock_connection (void);
extern void unlock_connection (void);
extern void lock_request (void);
extern void unlock_request (void);
extern void lock_unload (void);
extern void unlock_unload (void);
/* sockets.c */
DEFINE_VECTOR_TYPE (sockets, int);
extern void bind_unix_socket (sockets *) __attribute__ ((__nonnull__ (1)));
extern void bind_tcpip_socket (sockets *) __attribute__ ((__nonnull__ (1)));
extern void bind_vsock (sockets *) __attribute__ ((__nonnull__ (1)));
extern void accept_incoming_connections (const sockets *socks)
__attribute__ ((__nonnull__ (1)));
/* threadlocal.c */
extern void threadlocal_init (void);
extern void threadlocal_new_server_thread (void);
extern void threadlocal_set_name (const char *name)
__attribute__ ((__nonnull__ (1)));
extern const char *threadlocal_get_name (void);
extern void threadlocal_set_instance_num (size_t instance_num);
extern size_t threadlocal_get_instance_num (void);
extern void threadlocal_set_errno (int err);
extern int threadlocal_get_errno (void);
extern void threadlocal_set_last_error (char *msg);
extern void threadlocal_clear_last_error (void);
extern const char *threadlocal_get_last_error (void);
extern void *threadlocal_buffer (size_t size);
extern void threadlocal_set_conn (struct connection *conn);
extern struct connection *threadlocal_get_conn (void);
extern struct context *threadlocal_get_context (void);
extern struct context *threadlocal_push_context (struct context *ctx);
extern void threadlocal_pop_context (struct context **ctx);
#define CLEANUP_CONTEXT_POP __attribute__ ((cleanup (threadlocal_pop_context)))
#define PUSH_CONTEXT_FOR_SCOPE(ctx) \
CLEANUP_CONTEXT_POP CLANG_UNUSED_VARIABLE_WORKAROUND \
struct context *NBDKIT_UNIQUE_NAME (_ctx) = threadlocal_push_context (ctx)
/* Macro which sets local variable struct connection *conn from
* thread-local storage, asserting that it is non-NULL. If you want
* to check if conn could be NULL (eg. outside a connection context)
* then call threadlocal_get_conn instead.
*/
#define GET_CONN \
struct connection *conn = threadlocal_get_conn (); \
assert (conn != NULL)
/* exports.c */
extern int exports_resolve_default (struct nbdkit_exports *exports,
struct backend *b, int readonly);
#endif /* NBDKIT_INTERNAL_H */
nbdkit-1.42.2/server/locks.c 0000644 0001750 0001750 00000010024 14676465664 011346 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include "internal.h"
/* Note that the plugin's thread model cannot change after being
* loaded, so caching it here is safe.
*/
unsigned thread_model = -1;
static pthread_mutex_t connection_lock = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t all_requests_lock = PTHREAD_MUTEX_INITIALIZER;
static pthread_rwlock_t unload_prevention_lock = PTHREAD_RWLOCK_INITIALIZER;
/* Map thread model to string; use only from single-threaded context */
const char *
name_of_thread_model (int model)
{
static char buf[] = "-2147483648 # unknown thread model!";
switch (model) {
case NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS:
return "serialize_connections";
case NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS:
return "serialize_all_requests";
case NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS:
return "serialize_requests";
case NBDKIT_THREAD_MODEL_PARALLEL:
return "parallel";
}
snprintf (buf, sizeof buf, "%d # unknown thread model!", model);
return buf;
}
void
lock_init_thread_model (void)
{
thread_model = top->thread_model (top);
debug ("using thread model: %s", name_of_thread_model (thread_model));
assert (thread_model <= NBDKIT_THREAD_MODEL_PARALLEL);
}
void
lock_connection (void)
{
if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS &&
pthread_mutex_lock (&connection_lock))
abort ();
}
void
unlock_connection (void)
{
if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS &&
pthread_mutex_unlock (&connection_lock))
abort ();
}
void
lock_request (void)
{
struct connection *conn = threadlocal_get_conn ();
if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS &&
pthread_mutex_lock (&all_requests_lock))
abort ();
if (conn && thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS &&
pthread_mutex_lock (&conn->request_lock))
abort ();
if (pthread_rwlock_rdlock (&unload_prevention_lock))
abort ();
}
void
unlock_request (void)
{
struct connection *conn = threadlocal_get_conn ();
if (pthread_rwlock_unlock (&unload_prevention_lock))
abort ();
if (conn && thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS &&
pthread_mutex_unlock (&conn->request_lock))
abort ();
if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS &&
pthread_mutex_unlock (&all_requests_lock))
abort ();
}
void
lock_unload (void)
{
if (pthread_rwlock_wrlock (&unload_prevention_lock))
abort ();
}
void
unlock_unload (void)
{
if (pthread_rwlock_unlock (&unload_prevention_lock))
abort ();
}
nbdkit-1.42.2/server/log.c 0000644 0001750 0001750 00000006344 14771245250 011005 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include "internal.h"
/* Copy the error message to threadlocal. This is sent to callers
* which are using structured replies, but is for extra information
* only so don't fail if we are unable to copy it.
*/
static void
copy_error_to_threadlocal (int orig_errno, const char *fs, va_list args)
{
va_list args_copy;
char *msg;
int r;
va_copy (args_copy, args);
errno = orig_errno; /* must restore in case fs contains %m */
r = vasprintf (&msg, fs, args_copy);
va_end (args_copy);
if (r != -1 && msg)
threadlocal_set_last_error (msg); /* ownership passed to threadlocal */
}
/* Call the right log_*_verror function depending on log_to sink.
* Note: preserves the previous value of errno.
*/
void
log_verror (const char *fs, va_list args)
{
int orig_errno = errno;
copy_error_to_threadlocal (orig_errno, fs, args);
switch (log_to) {
case LOG_TO_DEFAULT:
if (forked_into_background)
log_syslog_verror (orig_errno, fs, args);
else
log_stderr_verror (orig_errno, fs, args);
break;
case LOG_TO_SYSLOG:
log_syslog_verror (orig_errno, fs, args);
break;
case LOG_TO_STDERR:
log_stderr_verror (orig_errno, fs, args);
break;
case LOG_TO_NULL:
/* nothing */
break;
}
errno = orig_errno; /* Restore errno before leaving the function. */
}
/* Note: preserves the previous value of errno. */
NBDKIT_DLL_PUBLIC void
nbdkit_verror (const char *fs, va_list args)
{
log_verror (fs, args);
}
/* Note: preserves the previous value of errno. */
NBDKIT_DLL_PUBLIC void
nbdkit_error (const char *fs, ...)
{
va_list args;
va_start (args, fs);
nbdkit_verror (fs, args);
va_end (args);
}
nbdkit-1.42.2/server/log-stderr.c 0000644 0001750 0001750 00000004660 14771245250 012305 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include "ansi-colours.h"
#include "internal.h"
void
log_stderr_verror (int orig_errno, const char *fs, va_list args)
{
const char *name = threadlocal_get_name ();
size_t instance_num = threadlocal_get_instance_num ();
int tty;
#ifdef HAVE_FLOCKFILE
flockfile (stderr);
#endif
tty = isatty (fileno (stderr));
if (tty) ansi_force_colour (ANSI_FG_BRIGHT_RED, stderr);
fprintf (stderr, "%s: ", program_name);
if (name) {
fprintf (stderr, "%s", name);
if (instance_num > 0)
fprintf (stderr, "[%zu]", instance_num);
fprintf (stderr, ": ");
}
fprintf (stderr, "error: ");
errno = orig_errno; /* must restore in case fs contains %m */
vfprintf (stderr, fs, args);
fprintf (stderr, "\n");
if (tty) ansi_force_restore (stderr);
#ifdef HAVE_FUNLOCKFILE
funlockfile (stderr);
#endif
}
nbdkit-1.42.2/server/log-syslog.c 0000644 0001750 0001750 00000005015 14676465664 012336 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include "internal.h"
#include "open_memstream.h"
#include "syslog.h"
/* Tempted to use LOG_FTP instead of LOG_DAEMON! */
static const int PRIORITY = LOG_DAEMON|LOG_ERR;
void
log_syslog_verror (int orig_errno, const char *fs, va_list args)
{
const char *name = threadlocal_get_name ();
size_t instance_num = threadlocal_get_instance_num ();
CLEANUP_FREE char *msg = NULL;
size_t len = 0;
FILE *fp = NULL;
fp = open_memstream (&msg, &len);
if (fp == NULL) {
/* Fallback to logging using fs, args directly. */
errno = orig_errno; /* must restore in case fs contains %m */
vsyslog (PRIORITY, fs, args);
return;
}
if (name) {
fprintf (fp, "%s", name);
if (instance_num > 0)
fprintf (fp, "[%zu]", instance_num);
fprintf (fp, ": ");
}
errno = orig_errno; /* must restore in case fs contains %m */
vfprintf (fp, fs, args);
close_memstream (fp);
syslog (PRIORITY, "%s", msg);
}
nbdkit-1.42.2/server/main.c 0000644 0001750 0001750 00000110034 14771245250 011140 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#ifdef HAVE_SYS_MMAN_H
#include
#endif
#ifdef HAVE_SYS_SOCKET_H
#include
#endif
#ifdef HAVE_LINUX_VM_SOCKETS_H
#include
#elif HAVE_SYS_VSOCK_H
#include
#endif
#include
#include
#include "ascii-ctype.h"
#include "ascii-string.h"
#include "exit-with-parent.h"
#include "nbd-protocol.h"
#include "open_memstream.h"
#include "realpath.h"
#include "strndup.h"
#include "syslog.h"
#include "utils.h"
#include "internal.h"
#include "options.h"
#ifdef ENABLE_LIBFUZZER
#define main fuzzer_main
#endif
static char *make_random_fifo (void);
static struct backend *open_plugin_so (size_t i, const char *filename,
int short_name);
static struct backend *open_filter_so (struct backend *next, size_t i,
const char *filename, int short_name);
static void start_serving (void);
static void write_pidfile (void);
static bool is_config_key (const char *key, size_t len);
static void error_if_stdio_closed (void);
static void switch_stdio (void);
static void winsock_init (void);
int tcpip_sock_af = AF_UNSPEC; /* -4, -6 */
struct debug_flag *debug_flags; /* -D */
bool exit_with_parent; /* --exit-with-parent */
const char *export_name; /* -e */
bool foreground; /* -f */
const char *ipaddr; /* -i */
bool keepalive; /* --keepalive */
enum log_to log_to = LOG_TO_DEFAULT; /* --log */
unsigned mask_handshake = ~0U; /* --mask-handshake */
bool newstyle = true; /* false = -o, true = -n */
bool no_mc; /* --no-meta-contexts */
bool no_sr; /* --no-sr */
char *pidfile; /* -P */
const char *port; /* -p */
bool print_uri; /* --print-uri */
bool read_only; /* -r */
const char *run; /* --run */
bool listen_stdin; /* -s */
const char *selinux_label; /* --selinux-label */
bool swap; /* --swap */
unsigned threads; /* -t */
unsigned timeout_secs, timeout_nsecs; /* --timeout */
int tls; /* --tls : 0=off 1=on 2=require */
const char *tls_certificates_dir; /* --tls-certificates */
const char *tls_psk; /* --tls-psk */
bool tls_verify_peer; /* --tls-verify-peer */
char *unixsocket; /* -U */
const char *user, *group; /* -u & -g */
bool verbose; /* -v */
bool vsock; /* --vsock */
enum service_mode service_mode; /* serving over TCP, Unix, etc */
bool configured; /* .config_complete done */
int saved_stdin = -1; /* dup'd stdin during -s/--run */
int saved_stdout = -1; /* dup'd stdout during -s/--run */
/* Linked list of backends. Each backend struct is followed by either
* a filter or plugin struct. "top" points to the first one. They
* are linked through the backend->next field.
*
* ┌──────────┠┌──────────┠┌──────────â”
* top ───▶│ backend │───▶│ backend │───▶│ backend │
* │ b->i = 2 │ │ b->i = 1 │ │ b->i = 0 │
* │ filter │ │ filter │ │ plugin │
* └──────────┘ └──────────┘ └──────────┘
*/
struct backend *top;
static unsigned int socket_activation; /* $LISTEN_FDS and $LISTEN_PID set */
static char *random_fifo_dir = NULL; /* Directory containing -U - */
static char *random_fifo = NULL; /* Path to -U - socket */
static void
usage (void)
{
extern const char *synopsis;
/* --{short,long}-options remain undocumented */
printf ("%s\n", synopsis);
/* This blurb matches the DESCRIPTION section of the man page: */
printf (
"Network Block Device (NBD) is a network protocol for accessing block\n"
"devices over the network. Block devices are hard disks and things that\n"
"behave like hard disks such as disk images and virtual machines.\n"
"\n"
"nbdkit is both a toolkit for creating NBD servers from “unconventionalâ€\n"
"sources, and the name of an NBD server. nbdkit ships with many plugins\n"
"for performing common tasks like serving local files.\n"
"\n"
);
printf ("Please read the nbdkit(1) manual page for full usage.\n");
}
static void
display_version (void)
{
if (strcmp (NBDKIT_VERSION_EXTRA, "") == 0)
printf ("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
else
printf ("%s %s (%s)\n",
PACKAGE_NAME, PACKAGE_VERSION, NBDKIT_VERSION_EXTRA);
}
static void
dump_config (void)
{
CLEANUP_FREE char *binary = NULL;
#ifdef __linux__
binary = realpath ("/proc/self/exe", NULL);
#else
#ifdef WIN32
/* GetModuleFileNameA has a crappy interface that prevents us from
* getting the length of the path so we just have to guess at an
* upper limit here. It will at least truncate it properly with \0.
* _get_pgmptr would be a better alternative except that it isn't
* implemented in MinGW. XXX
*/
binary = malloc (256);
if (!GetModuleFileNameA (NULL, binary, 256)) {
free (binary);
binary = NULL;
}
#endif
#endif
if (binary != NULL)
printf ("%s=%s\n", "binary", binary);
printf ("%s=%s\n", "bindir", bindir);
if (can_exit_with_parent ())
printf ("exit_with_parent=yes\n");
else
printf ("exit_with_parent=no\n");
printf ("%s=%s\n", "filterdir", filterdir);
printf ("%s=%s\n", "host_cpu", host_cpu);
printf ("%s=%s\n", "host_os", host_os);
printf ("%s=%s\n", "libdir", libdir);
printf ("%s=%s\n", "mandir", mandir);
printf ("%s=%d\n", "max_api_version", MAX_API_VERSION);
printf ("%s=%s\n", "name", PACKAGE_NAME);
printf ("%s=%s\n", "plugindir", plugindir);
printf ("%s=%s\n", "root_tls_certificates_dir", root_tls_certificates_dir);
printf ("%s=%s\n", "run_default_socket", "Unix");
printf ("%s=%s\n", "sbindir", sbindir);
#ifdef HAVE_LIBSELINUX
printf ("selinux=yes\n");
#else
printf ("selinux=no\n");
#endif
printf ("%s=%s\n", "soext", SOEXT);
printf ("%s=%s\n", "sysconfdir", sysconfdir);
#ifdef HAVE_TIMEOUT_OPTION
printf ("timeout_option=yes\n");
#else
printf ("timeout_option=no\n");
#endif
#ifdef HAVE_GNUTLS
printf ("tls=yes\n");
#else
printf ("tls=no\n");
#endif
printf ("%s=%s\n", "version", PACKAGE_VERSION);
if (strcmp (NBDKIT_VERSION_EXTRA, "") != 0)
printf ("%s=%s\n", "version_extra", NBDKIT_VERSION_EXTRA);
printf ("%s=%d\n", "version_major", NBDKIT_VERSION_MAJOR);
printf ("%s=%d\n", "version_minor", NBDKIT_VERSION_MINOR);
#if defined (AF_VSOCK) && defined (VMADDR_CID_ANY)
printf ("vsock_option=yes\n");
#else
printf ("vsock_option=no\n");
#endif
#ifdef HAVE_LIBZSTD
printf ("zstd=yes\n");
#else
printf ("zstd=no\n");
#endif
}
/* -D nbdkit.environ=1 to dump the environment at start up. */
NBDKIT_DLL_PUBLIC int nbdkit_debug_environ;
#ifndef HAVE_ENVIRON_DECL
extern char **environ;
#endif
static void
dump_environment (void)
{
size_t i;
for (i = 0; environ[i]; ++i)
nbdkit_debug ("%s", environ[i]);
}
int
main (int argc, char *argv[])
{
int c;
bool help = false, version = false, dump_plugin = false;
int tls_set_on_cli = false;
bool short_name;
const char *filename;
char *p;
static struct filter_filename {
struct filter_filename *next;
const char *filename;
} *filter_filenames = NULL;
size_t i;
const char *magic_config_key;
error_if_stdio_closed ();
winsock_init ();
#if !ENABLE_LIBFUZZER
threadlocal_init ();
#else
static bool main_called = false;
if (!main_called) {
threadlocal_init ();
main_called = true;
}
#endif
/* The default setting for TLS depends on whether we were
* compiled with GnuTLS.
*/
#ifdef HAVE_GNUTLS
tls = 1;
#else
tls = 0;
#endif
/* Returns 0 if no socket activation, or the number of FDs. */
socket_activation = get_socket_activation ();
for (;;) {
c = getopt_long (argc, argv, short_options, long_options, NULL);
if (c == -1)
break;
switch (c) {
case DUMP_CONFIG_OPTION:
dump_config ();
exit (EXIT_SUCCESS);
case DUMP_PLUGIN_OPTION:
dump_plugin = true;
break;
case EXIT_WITH_PARENT_OPTION:
if (can_exit_with_parent ()) {
exit_with_parent = true;
foreground = true;
}
else {
fprintf (stderr,
"%s: --exit-with-parent is not implemented "
"for this operating system\n",
program_name);
exit (EXIT_FAILURE);
}
break;
case FILTER_OPTION:
{
struct filter_filename *t;
t = malloc (sizeof *t);
if (t == NULL) {
perror ("malloc");
exit (EXIT_FAILURE);
}
t->next = filter_filenames;
t->filename = optarg;
filter_filenames = t;
}
break;
case HELP_OPTION:
help = true;
break;
case KEEPALIVE_OPTION:
keepalive = true;
break;
case LOG_OPTION:
if (strcmp (optarg, "stderr") == 0)
log_to = LOG_TO_STDERR;
else if (strcmp (optarg, "syslog") == 0)
log_to = LOG_TO_SYSLOG;
else if (strcmp (optarg, "null") == 0)
log_to = LOG_TO_NULL;
else {
fprintf (stderr, "%s: "
"--log must be \"stderr\", \"syslog\" or \"null\"\n",
program_name);
exit (EXIT_FAILURE);
}
break;
case LONG_OPTIONS_OPTION:
for (i = 0; long_options[i].name != NULL; ++i) {
if (strcmp (long_options[i].name, "long-options") != 0 &&
strcmp (long_options[i].name, "short-options") != 0)
printf ("--%s\n", long_options[i].name);
}
exit (EXIT_SUCCESS);
case MASK_HANDSHAKE_OPTION:
if (nbdkit_parse_unsigned ("mask-handshake",
optarg, &mask_handshake) == -1)
exit (EXIT_FAILURE);
break;
case NO_MC_OPTION:
no_mc = true;
break;
case NO_SR_OPTION:
no_sr = true;
break;
case PRINT_URI:
print_uri = true;
break;
case RUN_OPTION:
if (socket_activation) {
fprintf (stderr, "%s: cannot use socket activation with --run flag\n",
program_name);
exit (EXIT_FAILURE);
}
run = optarg;
foreground = true;
break;
case SELINUX_LABEL_OPTION:
selinux_label = optarg;
break;
case SHORT_OPTIONS_OPTION:
for (i = 0; short_options[i]; ++i) {
if (short_options[i] != ':')
printf ("-%c\n", short_options[i]);
}
exit (EXIT_SUCCESS);
case SWAP_OPTION:
swap = 1;
break;
case TIMEOUT_OPTION:
#ifdef HAVE_TIMEOUT_OPTION
if (nbdkit_parse_delay ("timeout", optarg,
&timeout_secs, &timeout_nsecs) == -1)
exit (EXIT_FAILURE);
break;
#else
fprintf (stderr, "%s: --timeout is not supported on this platform\n",
program_name);
exit (EXIT_FAILURE);
#endif
case TLS_OPTION:
tls_set_on_cli = true;
if (ascii_strcasecmp (optarg, "require") == 0 ||
ascii_strcasecmp (optarg, "required") == 0 ||
ascii_strcasecmp (optarg, "force") == 0)
tls = 2;
else {
tls = nbdkit_parse_bool (optarg);
if (tls == -1)
exit (EXIT_FAILURE);
}
break;
case TLS_CERTIFICATES_OPTION:
tls_certificates_dir = optarg;
break;
case TLS_PSK_OPTION:
tls_psk = optarg;
break;
case TLS_VERIFY_PEER_OPTION:
tls_verify_peer = true;
break;
case VSOCK_OPTION:
#if defined (AF_VSOCK) && defined (VMADDR_CID_ANY)
vsock = true;
break;
#else
fprintf (stderr, "%s: AF_VSOCK is not supported on this platform\n",
program_name);
exit (EXIT_FAILURE);
#endif
case '4':
tcpip_sock_af = AF_INET;
break;
case '6':
tcpip_sock_af = AF_INET6;
break;
case 'D':
add_debug_flag (optarg);
break;
case 'e':
export_name = optarg;
break;
case 'f':
foreground = true;
break;
case 'g':
group = optarg;
break;
case 'i':
if (socket_activation) {
fprintf (stderr, "%s: cannot use socket activation with -i flag\n",
program_name);
exit (EXIT_FAILURE);
}
ipaddr = optarg;
break;
case 'n':
newstyle = true;
break;
case 'o':
newstyle = false;
break;
case 'P':
pidfile = nbdkit_absolute_path (optarg);
if (pidfile == NULL)
exit (EXIT_FAILURE);
break;
case 'p':
if (socket_activation) {
fprintf (stderr, "%s: cannot use socket activation with -p flag\n",
program_name);
exit (EXIT_FAILURE);
}
port = optarg;
break;
case 'r':
read_only = true;
break;
case 's':
if (socket_activation) {
fprintf (stderr, "%s: cannot use socket activation with -s flag\n",
program_name);
exit (EXIT_FAILURE);
}
listen_stdin = true;
#ifdef WIN32
/* This could be implemented with a bit of work. The problem
* currently is that we try to use recv() on the stdio file
* descriptor which winsock does not support (nor Linux in
* fact). We would need to implement a test to see if the file
* descriptor is a socket or not and use either read or recv as
* appropriate.
*/
NOT_IMPLEMENTED_ON_WINDOWS ("-s");
#endif
break;
case 't':
if (nbdkit_parse_unsigned ("threads", optarg, &threads) == -1)
exit (EXIT_FAILURE);
/* XXX Worth a maximimum limit on threads? */
break;
case 'U':
if (socket_activation) {
fprintf (stderr, "%s: cannot use socket activation with -U flag\n",
program_name);
exit (EXIT_FAILURE);
}
if (strcmp (optarg, "-") == 0)
unixsocket = make_random_fifo ();
else
unixsocket = nbdkit_absolute_path (optarg);
if (unixsocket == NULL)
exit (EXIT_FAILURE);
break;
case 'u':
user = optarg;
break;
case 'v':
verbose = true;
break;
case 'V':
version = true;
break;
default:
usage ();
exit (EXIT_FAILURE);
}
}
/* No extra parameters. */
if (optind >= argc) {
if (help) {
usage ();
exit (EXIT_SUCCESS);
}
if (version) {
display_version ();
exit (EXIT_SUCCESS);
}
if (dump_plugin) {
/* Incorrect use of --dump-plugin. */
fprintf (stderr,
"%s: use 'nbdkit plugin --dump-plugin' or\n"
"'nbdkit /path/to/plugin." SOEXT " --dump-plugin' or\n"
"if you want to find out about the server use --dump-config\n",
program_name);
exit (EXIT_FAILURE);
}
/* Otherwise this is an error. */
fprintf (stderr,
"%s: no plugins given on the command line.\n"
"Use '%s --help' or "
"read the nbdkit(1) manual page for documentation.\n",
program_name, program_name);
exit (EXIT_FAILURE);
}
/* --tls=require and oldstyle won't work. */
if (tls == 2 && !newstyle) {
fprintf (stderr,
"%s: cannot use oldstyle protocol (-o) and require TLS\n",
program_name);
exit (EXIT_FAILURE);
}
/* Set the umask to a known value. This makes the behaviour of
* plugins when creating files more predictable, and also removes an
* implicit dependency on umask when calling mkstemp(3).
*/
umask (0022);
/* If we will or might use syslog. */
if (log_to == LOG_TO_SYSLOG || log_to == LOG_TO_DEFAULT)
openlog (program_name, LOG_PID, 0);
/* Print the version in debug output, right after syslog initialization. */
if (strcmp (NBDKIT_VERSION_EXTRA, "") == 0)
debug ("%s %s", PACKAGE_NAME, PACKAGE_VERSION);
else
debug ("%s %s (%s)", PACKAGE_NAME, PACKAGE_VERSION, NBDKIT_VERSION_EXTRA);
/* Initialize TLS. */
crypto_init (tls_set_on_cli);
assert (tls != -1);
/* Implement --exit-with-parent early in case plugin initialization
* takes a long time and the parent exits during that time.
*/
if (exit_with_parent) {
if (set_exit_with_parent () == -1) {
perror ("nbdkit: --exit-with-parent");
exit (EXIT_FAILURE);
}
}
/* If the user has mixed up -p/--run/-s/-U/--vsock options, then
* give an error.
*
* XXX Actually the server could easily be extended to handle both
* TCP/IP and Unix sockets, or even multiple TCP/IP ports.
*/
if ((port && unixsocket) ||
(port && listen_stdin) ||
(unixsocket && listen_stdin) ||
(listen_stdin && run) ||
(listen_stdin && dump_plugin) ||
(vsock && unixsocket) ||
(vsock && listen_stdin)) {
fprintf (stderr,
"%s: --dump-plugin, -p, --run, -s, -U or --vsock options "
"cannot be used in this combination\n",
program_name);
exit (EXIT_FAILURE);
}
/* Since nbdkit 1.36, --run implies -U -, unless --vsock or --port
* was set explicitly.
*/
if (run && !unixsocket && !port && !vsock) {
unixsocket = make_random_fifo ();
if (!unixsocket)
exit (EXIT_FAILURE);
}
/* By the point we have enough information to calculate the service mode. */
if (socket_activation)
service_mode = SERVICE_MODE_SOCKET_ACTIVATION;
else if (listen_stdin)
service_mode = SERVICE_MODE_LISTEN_STDIN;
else if (unixsocket)
service_mode = SERVICE_MODE_UNIXSOCKET;
else if (vsock)
service_mode = SERVICE_MODE_VSOCK;
else
service_mode = SERVICE_MODE_TCPIP;
debug ("service mode: %s", service_mode_string (service_mode));
/* By the point we have enough information to calculate the NBD URI.
* Note this may be NULL.
*/
uri = make_uri ();
/* The remaining command line arguments are the plugin name and
* parameters. If --help, --version or --dump-plugin were specified
* then we open the plugin so that we can display the per-plugin
* help/version/plugin information.
*/
filename = argv[optind++];
short_name = is_short_name (filename);
/* Is there an executable script located in the plugindir?
* If so we simply execute it with the current command line.
*/
if (short_name) {
struct stat statbuf;
CLEANUP_FREE char *script;
if (asprintf (&script,
"%s/nbdkit-%s-plugin", plugindir, filename) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
if (stat (script, &statbuf) == 0 &&
(statbuf.st_mode & S_IXUSR) != 0) {
/* We're going to execute the plugin directly.
* Replace argv[0] with argv[optind-1] and move further arguments
* down the list.
*/
argv[0] = argv[optind-1];
for (i = optind; i <= argc; i++)
argv[i-1] = argv[i];
execv (script, argv);
perror (script);
exit (EXIT_FAILURE);
}
}
/* Open the plugin (first) and then wrap the plugin with the
* filters. The filters are wrapped in reverse order that they
* appear on the command line so that in the end ‘top’ points to
* the first filter on the command line.
*/
top = open_plugin_so (0, filename, short_name);
i = 1;
while (filter_filenames) {
struct filter_filename *t = filter_filenames;
filename = t->filename;
short_name = is_short_name (filename);
top = open_filter_so (top, i++, filename, short_name);
filter_filenames = t->next;
free (t);
}
/* Apply nbdkit.* flags for the server. */
apply_debug_flags (RTLD_DEFAULT, "nbdkit");
/* Check all debug flags were used, and free them. */
free_debug_flags ();
/* Dump the environment if asked. This is the earliest we can do it
* because it uses a debug flag.
*/
if (nbdkit_debug_environ && verbose)
dump_environment ();
if (help) {
struct backend *b;
usage ();
for_each_backend (b) {
printf ("\n");
b->usage (b);
}
top->free (top);
exit (EXIT_SUCCESS);
}
if (version) {
const char *v;
struct backend *b;
display_version ();
for_each_backend (b) {
printf ("%s", b->name);
if ((v = b->version (b)) != NULL)
printf (" %s", v);
printf ("\n");
}
top->free (top);
exit (EXIT_SUCCESS);
}
/* Call config and config_complete to parse the parameters.
*
* If the plugin provides magic_config_key then any "bare" values
* (ones not containing "=") are prefixed with this key.
*
* For backwards compatibility with old plugins, and to support
* scripting languages, if magic_config_key == NULL then if the
* first parameter is bare it is prefixed with the key "script", and
* any other bare parameters are errors.
*
* Keys must live for the life of nbdkit. Since we want to avoid
* modifying argv (so that /proc/PID/cmdline remains sane) but we
* need to create a key from argv[i] = "key=value" we must intern
* the keys, which are then freed at the end of main().
*/
magic_config_key = top->magic_config_key (top);
for (i = 0; optind < argc; ++i, ++optind) {
size_t n;
p = strchr (argv[optind], '=');
n = p - argv[optind];
if (p && is_config_key (argv[optind], n)) { /* Is it key=value? */
const char *key = nbdkit_strndup_intern (argv[optind], n);
if (key == NULL)
exit (EXIT_FAILURE);
top->config (top, key, p+1);
}
else if (magic_config_key == NULL) {
if (i == 0) /* magic script parameter */
top->config (top, "script", argv[optind]);
else {
fprintf (stderr,
"%s: expecting key=value on the command line but got: %s\n",
program_name, argv[optind]);
exit (EXIT_FAILURE);
}
}
else { /* magic config key */
top->config (top, magic_config_key, argv[optind]);
}
}
/* This must run after parsing the parameters so that the script can
* be loaded for scripting languages. But it must be called before
* config_complete so that the plugin doesn't check for missing
* parameters.
*/
if (dump_plugin) {
top->dump_fields (top);
top->free (top);
free_interns ();
exit (EXIT_SUCCESS);
}
top->config_complete (top);
/* Select the correct thread model based on config. */
lock_init_thread_model ();
/* Tell the plugin that we are about to start serving. This must be
* called before we change user, fork, or open any sockets.
*/
top->get_ready (top);
/* Print the URI. Do it just before we close stdio, especially
* before setting 'configured' to true which makes nbdkit_stdio_safe
* false.
*/
if (print_uri && uri && nbdkit_stdio_safe ()) {
printf ("%s\n", uri);
printf ("Shell-quoted URI: ");
shell_quote (uri, stdout);
printf ("\n");
printf ("Command to query the NBD endpoint:\n");
printf (" nbdinfo ");
shell_quote (uri, stdout);
printf ("\n");
fflush (stdout);
}
switch_stdio ();
configured = true;
start_serving ();
top->cleanup (top);
top->free (top);
top = NULL;
free (unixsocket);
free (pidfile);
free (uri);
if (random_fifo) {
unlink (random_fifo);
free (random_fifo);
}
if (random_fifo_dir) {
rmdir (random_fifo_dir);
free (random_fifo_dir);
}
crypto_free ();
close_quit_pipe ();
free_interns ();
/* Note: Don't exit here, otherwise this won't work when compiled
* for libFuzzer.
*/
return EXIT_SUCCESS;
}
/* Implementation of '-U -' */
static char *
make_random_fifo (void)
{
char *sock;
random_fifo_dir = make_temporary_directory ();
if (random_fifo_dir == NULL) {
perror ("make_temporary_directory");
return NULL;
}
if (asprintf (&random_fifo, "%s" DIR_SEPARATOR_STR "socket",
random_fifo_dir) == -1) {
perror ("asprintf");
goto error;
}
sock = strdup (random_fifo);
if (sock == NULL) {
perror ("strdup");
goto error;
}
return sock;
error:
free (random_fifo);
random_fifo = NULL;
rmdir (random_fifo_dir);
free (random_fifo_dir);
random_fifo_dir = NULL;
return NULL;
}
const char *
service_mode_string (enum service_mode sm)
{
switch (sm) {
case SERVICE_MODE_SOCKET_ACTIVATION: return "socket activation";
case SERVICE_MODE_LISTEN_STDIN: return "listen stdin";
case SERVICE_MODE_UNIXSOCKET: return "unix socket";
case SERVICE_MODE_VSOCK: return "vsock";
case SERVICE_MODE_TCPIP: return "TCP/IP";
default: abort ();
}
}
/* Is it the name of a possible nbdkit--plugin or
* nbdkit--filter that might be a Fedora or Debian package?
* This matches more than all possible names, but it's just a guide
* for help output.
*/
static int
is_possible_package_name (const char *name)
{
size_t i, n = strlen (name);
for (i = 0; i < n; ++i) {
char c = name[i];
if (ascii_isalnum (c))
continue;
if (c == '-' || c == '_' || c == '.')
continue;
return 0;
}
return 1;
}
/* Common error handling for dlopen(3) failures in open_plugin_so or
* open_filter_so.
*
* The error message is held implicitly in dlerror(3).
*
* 'what' == "plugin" | "filter"
*
* 'filename' is the file we were trying to dlopen.
*
* 'short_name' is the plugin/filter short name that was passed on the
* nbdkit command line, or NULL if a short name was used (eg the
* plugin was opened using a full path).
*/
static void
failed_to_load_error (const char *what,
const char *filename,
const char *short_name)
{
fprintf (stderr, "%s: error: cannot open %s \"", program_name, what);
c_string_quote (filename, stderr);
fprintf (stderr, "\": ");
c_string_quote (dlerror (), stderr);
fprintf (stderr, "\n");
if (short_name && is_possible_package_name (short_name)) {
fprintf (stderr,
"\n"
"To add this functionality you might need to install a separate\n"
"%s package such as nbdkit-%s-%s (Fedora) or\n"
"nbdkit-%s-%s (Debian).\n",
what, short_name, what, what, short_name);
}
fprintf (stderr,
"\n"
"Use '%s --help' or "
"read the nbdkit(1) manual page for documentation.\n",
program_name);
exit (EXIT_FAILURE);
}
static struct backend *
open_plugin_so (size_t i, const char *name, int short_name)
{
struct backend *ret;
const char *orig_name = name;
char *filename = (char *) name;
bool free_filename = false;
void *dl;
struct nbdkit_plugin *(*plugin_init) (void);
char *error;
if (short_name) {
/* Short names are rewritten relative to the plugindir. */
if (asprintf (&filename,
"%s/nbdkit-%s-plugin." SOEXT, plugindir, name) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
free_filename = true;
}
dl = dlopen (filename, RTLD_NOW|RTLD_GLOBAL);
if (dl == NULL)
failed_to_load_error ("plugin", filename, short_name ? orig_name : NULL);
/* Initialize the plugin. See dlopen(3) to understand C weirdness. */
dlerror ();
plugin_init = dlsym (dl, "plugin_init");
if ((error = dlerror ()) != NULL) {
fprintf (stderr, "%s: %s: %s\n", program_name, name, error);
exit (EXIT_FAILURE);
}
if (!plugin_init) {
fprintf (stderr, "%s: %s: invalid plugin_init\n", program_name, name);
exit (EXIT_FAILURE);
}
/* Register the plugin. */
ret = plugin_register (i, filename, dl, plugin_init);
if (free_filename)
free (filename);
return ret;
}
static struct backend *
open_filter_so (struct backend *next, size_t i,
const char *name, int short_name)
{
struct backend *ret;
const char *orig_name = name;
char *filename = (char *) name;
bool free_filename = false;
void *dl;
struct nbdkit_filter *(*filter_init) (void);
char *error;
if (short_name) {
/* Short names are rewritten relative to the filterdir. */
if (asprintf (&filename,
"%s/nbdkit-%s-filter." SOEXT, filterdir, name) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
free_filename = true;
}
dl = dlopen (filename, RTLD_NOW|RTLD_GLOBAL);
if (dl == NULL)
failed_to_load_error ("filter", filename, short_name ? orig_name : NULL);
/* Initialize the filter. See dlopen(3) to understand C weirdness. */
dlerror ();
filter_init = dlsym (dl, "filter_init");
if ((error = dlerror ()) != NULL) {
fprintf (stderr, "%s: %s: %s\n", program_name, name, error);
exit (EXIT_FAILURE);
}
if (!filter_init) {
fprintf (stderr, "%s: %s: invalid filter_init\n", program_name, name);
exit (EXIT_FAILURE);
}
/* Register the filter. */
ret = filter_register (next, i, filename, dl, filter_init);
if (free_filename)
free (filename);
return ret;
}
static void
start_serving (void)
{
sockets socks = empty_vector;
size_t i;
set_up_quit_pipe ();
#if !ENABLE_LIBFUZZER
set_up_signals ();
#endif
/* Lock the process into memory if requested. */
if (swap) {
#ifdef HAVE_MLOCKALL
if (mlockall (MCL_CURRENT | MCL_FUTURE) == -1) {
fprintf (stderr, "%s: --swap: mlockall: %m\n", program_name);
exit (EXIT_FAILURE);
}
debug ("mlockall done");
#else
fprintf (stderr, "%s: mlockall (--swap option) "
"is not supported on this platform\n", program_name);
exit (EXIT_FAILURE);
#endif
}
switch (service_mode) {
case SERVICE_MODE_SOCKET_ACTIVATION:
/* Socket activation: the ‘socket_activation’ variable (> 0) is
* the number of file descriptors from FIRST_SOCKET_ACTIVATION_FD
* to FIRST_SOCKET_ACTIVATION_FD+socket_activation-1.
*/
if (sockets_reserve_exactly (&socks, socket_activation) == -1) {
perror ("realloc");
exit (EXIT_FAILURE);
}
for (i = 0; i < socket_activation; ++i) {
int s = FIRST_SOCKET_ACTIVATION_FD + i, r;
/* This can't fail because of the reservation above. */
r = sockets_append (&socks, s);
assert (r == 0);
}
debug ("using socket activation, nr_socks = %zu", socks.len);
change_user ();
write_pidfile ();
top->after_fork (top);
accept_incoming_connections (&socks);
break;
case SERVICE_MODE_LISTEN_STDIN:
/* Handling a single connection on stdin/stdout. */
change_user ();
write_pidfile ();
top->after_fork (top);
threadlocal_new_server_thread ();
handle_single_connection (saved_stdin, saved_stdout);
break;
case SERVICE_MODE_UNIXSOCKET:
bind_unix_socket (&socks);
goto serve_socks;
case SERVICE_MODE_VSOCK:
bind_vsock (&socks);
goto serve_socks;
case SERVICE_MODE_TCPIP:
bind_tcpip_socket (&socks);
serve_socks:
/* Common code for handling multiple connections on TCP/IP, Unix
* domain socket or AF_VSOCK.
*/
run_command ();
change_user ();
fork_into_background ();
write_pidfile ();
top->after_fork (top);
accept_incoming_connections (&socks);
break;
default:
abort ();
}
}
static void
write_pidfile (void)
{
int fd;
pid_t pid;
char pidstr[64];
size_t len;
if (!pidfile)
return;
pid = getpid ();
/* Don't put a trailing \n after the PID file on Windows. It is
* turned into \r\n which causes problems if you process the file
* using a Unix tool like bash, especially when running the test
* suite.
*/
snprintf (pidstr, sizeof pidstr, "%d"
#ifndef WIN32
"\n"
#endif
, (int) pid);
len = strlen (pidstr);
fd = open (pidfile, O_WRONLY|O_TRUNC|O_CREAT|O_CLOEXEC|O_NOCTTY, 0644);
if (fd == -1) {
perror (pidfile);
exit (EXIT_FAILURE);
}
if (write (fd, pidstr, len) < len ||
close (fd) == -1) {
perror (pidfile);
exit (EXIT_FAILURE);
}
debug ("written pidfile %s", pidfile);
}
/* When parsing plugin and filter config key=value from the command
* line, is the key a simple alphanumeric with period, underscore or
* dash?
*/
static bool
is_config_key (const char *key, size_t len)
{
static const char allowed_first[] =
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ";
static const char allowed[] =
"._-"
"0123456789"
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ";
if (len == 0)
return false;
if (strchr (allowed_first, key[0]) == NULL)
return false;
/* This works in context of the caller since key[len] == '='. */
if (strspn (key, allowed) != len)
return false;
return true;
}
/* Refuse to run if stdin/out/err are closed, whether or not -s is used. */
static void
error_if_stdio_closed (void)
{
#ifdef F_GETFL
if (fcntl (STDERR_FILENO, F_GETFL) == -1) {
/* Nowhere we can report the error. Oh well. */
exit (EXIT_FAILURE);
}
if (fcntl (STDIN_FILENO, F_GETFL) == -1 ||
fcntl (STDOUT_FILENO, F_GETFL) == -1) {
perror ("expecting stdin/stdout to be opened");
exit (EXIT_FAILURE);
}
#endif
}
/* Sanitize stdin/stdout to /dev/null, after saving the originals
* when needed. We are still single-threaded at this point, and
* already checked that stdin/out were open, so we don't have to
* worry about other threads accidentally grabbing our intended fds,
* or races on FD_CLOEXEC. POSIX says that 'fflush(NULL)' is
* supposed to reset the underlying offset of seekable stdin, but
* glibc is buggy and requires an explicit fflush(stdin) as
* well. https://sourceware.org/bugzilla/show_bug.cgi?id=12799
*/
static void
switch_stdio (void)
{
#if defined (F_DUPFD_CLOEXEC) || defined (F_DUPFD)
fflush (stdin);
fflush (NULL);
if (listen_stdin || run) {
#ifndef F_DUPFD_CLOEXEC
#define F_DUPFD_CLOEXEC F_DUPFD
#endif
saved_stdin = fcntl (STDIN_FILENO, F_DUPFD_CLOEXEC, STDERR_FILENO + 1);
saved_stdout = fcntl (STDOUT_FILENO, F_DUPFD_CLOEXEC, STDERR_FILENO + 1);
#if F_DUPFD == F_DUPFD_CLOEXEC
saved_stdin = set_cloexec (saved_stdin);
saved_stdout = set_cloexec (saved_stdout);
#endif
if (saved_stdin == -1 || saved_stdout == -1) {
perror ("fcntl");
exit (EXIT_FAILURE);
}
}
#endif
#ifndef WIN32
close (STDIN_FILENO);
close (STDOUT_FILENO);
if (open ("/dev/null", O_RDONLY) != STDIN_FILENO ||
open ("/dev/null", O_WRONLY) != STDOUT_FILENO) {
perror ("open");
exit (EXIT_FAILURE);
}
#endif
}
/* On Windows the Winsock library must be initialized early.
* https://docs.microsoft.com/en-us/windows/win32/winsock/initializing-winsock
*/
static void
winsock_init (void)
{
#ifdef WIN32
WSADATA wsaData;
int result;
result = WSAStartup (MAKEWORD (2, 2), &wsaData);
if (result != 0) {
fprintf (stderr, "WSAStartup failed: %d\n", result);
exit (EXIT_FAILURE);
}
#endif
}
nbdkit-1.42.2/server/plugins.c 0000644 0001750 0001750 00000062742 14771245250 011711 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#ifdef HAVE_SYS_SOCKET_H
#include
#endif
#include "internal.h"
#include "minmax.h"
#include "ispowerof2.h"
/* We extend the generic backend struct with extra fields relating
* to this plugin.
*/
struct backend_plugin {
struct backend backend;
struct nbdkit_plugin plugin;
};
static void
plugin_free (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
backend_unload (b, p->plugin.unload);
free (p);
}
static int
plugin_thread_model (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
int model = p->plugin._thread_model;
int r;
#if !(defined SOCK_CLOEXEC && defined HAVE_MKOSTEMP && defined HAVE_PIPE2 && \
defined HAVE_ACCEPT4)
if (model > NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS) {
debug ("system lacks atomic CLOEXEC, serializing to avoid fd leaks");
model = NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS;
}
#endif
if (p->plugin.thread_model) {
r = p->plugin.thread_model ();
if (r == -1)
exit (EXIT_FAILURE);
if (r < model)
model = r;
}
return model;
}
static const char *
plugin_name (struct backend *b)
{
return b->name;
}
static void
plugin_usage (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
const char *t;
printf ("plugin: %s", b->name);
if (p->plugin.longname)
printf (" (%s)", p->plugin.longname);
printf ("\n");
printf ("(%s)\n", b->filename);
if (p->plugin.description) {
printf ("%s", p->plugin.description);
if ((t = strrchr (p->plugin.description, '\n')) == NULL || t[1])
printf ("\n");
}
if (p->plugin.config_help) {
printf ("%s", p->plugin.config_help);
if ((t = strrchr (p->plugin.config_help, '\n')) == NULL || t[1])
printf ("\n");
}
}
static const char *
plugin_version (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
return p->plugin.version;
}
/* This implements the --dump-plugin option. */
static void
plugin_dump_fields (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
char *path;
path = nbdkit_realpath (b->filename);
printf ("path=%s\n", path);
free (path);
printf ("name=%s\n", b->name);
if (p->plugin.version)
printf ("version=%s\n", p->plugin.version);
printf ("api_version=%d\n", p->plugin._api_version);
printf ("struct_size=%" PRIu64 "\n", p->plugin._struct_size);
printf ("max_thread_model=%s\n",
name_of_thread_model (p->plugin._thread_model));
printf ("thread_model=%s\n",
name_of_thread_model (top->thread_model (top)));
printf ("errno_is_preserved=%d\n", !!p->plugin.errno_is_preserved);
if (p->plugin.magic_config_key)
printf ("magic_config_key=%s\n", p->plugin.magic_config_key);
#define HAS(field) if (p->plugin.field) printf ("has_%s=1\n", #field)
HAS (longname);
HAS (description);
HAS (load);
HAS (unload);
HAS (dump_plugin);
HAS (config);
HAS (config_complete);
HAS (config_help);
HAS (thread_model);
HAS (get_ready);
HAS (after_fork);
HAS (cleanup);
HAS (preconnect);
HAS (list_exports);
HAS (default_export);
HAS (open);
HAS (close);
HAS (export_description);
HAS (get_size);
HAS (block_size);
HAS (can_write);
HAS (can_flush);
HAS (is_rotational);
HAS (can_trim);
HAS (can_zero);
HAS (can_fast_zero);
HAS (can_extents);
HAS (can_fua);
HAS (can_multi_conn);
HAS (can_cache);
HAS (pread);
HAS (pwrite);
HAS (flush);
HAS (trim);
HAS (zero);
HAS (extents);
HAS (cache);
HAS (_pread_v1);
HAS (_pwrite_v1);
HAS (_flush_v1);
HAS (_trim_v1);
HAS (_zero_v1);
#undef HAS
/* Custom fields. */
if (p->plugin.dump_plugin)
p->plugin.dump_plugin ();
}
static void
plugin_config (struct backend *b, const char *key, const char *value)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
debug ("%s: config key=%s, value=%s", b->name, key, value);
if (p->plugin.config == NULL) {
fprintf (stderr,
"%s: %s: this plugin does not need command line configuration\n"
"Try using: %s --help %s\n",
program_name, b->filename,
program_name, b->filename);
exit (EXIT_FAILURE);
}
if (p->plugin.config (key, value) == -1)
exit (EXIT_FAILURE);
}
static void
plugin_config_complete (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
debug ("%s: config_complete", b->name);
if (!p->plugin.config_complete)
return;
if (p->plugin.config_complete () == -1)
exit (EXIT_FAILURE);
}
static const char *
plugin_magic_config_key (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
return p->plugin.magic_config_key;
}
static void
plugin_get_ready (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
debug ("%s: get_ready", b->name);
if (!p->plugin.get_ready)
return;
if (p->plugin.get_ready () == -1)
exit (EXIT_FAILURE);
}
static void
plugin_after_fork (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
debug ("%s: after_fork", b->name);
if (!p->plugin.after_fork)
return;
if (p->plugin.after_fork () == -1)
exit (EXIT_FAILURE);
}
static void
plugin_cleanup (struct backend *b)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
debug ("%s: cleanup", b->name);
if (p->plugin.cleanup)
p->plugin.cleanup ();
}
static int
plugin_preconnect (struct backend *b, int readonly)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
debug ("%s: preconnect", b->name);
if (!p->plugin.preconnect)
return 0;
return p->plugin.preconnect (readonly);
}
static int
plugin_list_exports (struct backend *b, int readonly, int is_tls,
struct nbdkit_exports *exports)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (!p->plugin.list_exports)
return nbdkit_use_default_export (exports);
return p->plugin.list_exports (readonly, is_tls, exports);
}
static const char *
plugin_default_export (struct backend *b, int readonly, int is_tls)
{
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (!p->plugin.default_export)
return "";
return p->plugin.default_export (readonly, is_tls);
}
static void *
plugin_open (struct context *c, int readonly, const char *exportname,
int is_tls)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
void *r;
assert (p->plugin.open != NULL);
/* Save the exportname since the lifetime of the string passed in
* here is likely to be brief. In addition this provides a place
* for nbdkit_export_name to retrieve it if called from the plugin.
* While readonly and the export name can be altered in plugins, the
* tls mode cannot.
*
* In API V3 we propose to pass the exportname and tls mode as extra
* parameters to the (new) plugin.open and deprecate
* nbdkit_export_name and nbdkit_is_tls for V3 users. Even then we
* will still need to save the export name in the handle because of
* the lifetime issue.
*/
if (c->conn) {
assert (c->conn->exportname == NULL);
c->conn->exportname = nbdkit_strdup_intern (exportname);
if (c->conn->exportname == NULL)
return NULL;
}
r = p->plugin.open (readonly);
if (r == NULL && c->conn)
c->conn->exportname = NULL;
return r;
}
/* We don't expose .prepare and .finalize to plugins since they aren't
* necessary. Plugins can easily do the same work in .open and
* .close.
*/
static int
plugin_prepare (struct context *c, int readonly)
{
return 0;
}
static int
plugin_finalize (struct context *c)
{
return 0;
}
static void
plugin_close (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
assert (c->handle);
if (p->plugin.close)
p->plugin.close (c->handle);
if (c->conn)
c->conn->exportname = NULL;
}
static const char *
plugin_export_description (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (p->plugin.export_description)
return p->plugin.export_description (c->handle);
else
return NULL;
}
static int64_t
plugin_get_size (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
assert (p->plugin.get_size != NULL);
return p->plugin.get_size (c->handle);
}
static int
plugin_block_size (struct context *c,
uint32_t *minimum, uint32_t *preferred, uint32_t *maximum)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (p->plugin.block_size) {
if (p->plugin.block_size (c->handle, minimum, preferred, maximum) == -1)
return -1;
/* To make scripting easier, it's permitted to set
* minimum = preferred = maximum = 0 and return 0.
* That means "no information", and works the same
* way as the else clause below.
*/
if (*minimum == 0 && *preferred == 0 && *maximum == 0)
return 0;
if (*minimum < 1 || *minimum > 65536) {
nbdkit_error ("plugin must set minimum block size between 1 and 64K");
return -1;
}
if (! is_power_of_2 (*minimum)) {
nbdkit_error ("plugin must set minimum block size to a power of 2");
return -1;
}
if (! is_power_of_2 (*preferred)) {
nbdkit_error ("plugin must set preferred block size to a power of 2");
return -1;
}
if (*preferred < 512 || *preferred > 32 * 1024 * 1024) {
nbdkit_error ("plugin must set preferred block size "
"between 512 and 32M");
return -1;
}
if (*maximum != (uint32_t)-1 && (*maximum % *minimum) != 0) {
nbdkit_error ("plugin must set maximum block size "
"to -1 or a multiple of minimum block size");
return -1;
}
if (*minimum > *preferred || *preferred > *maximum) {
nbdkit_error ("plugin must set minimum block size "
"<= preferred <= maximum");
return -1;
}
return 0;
}
else {
/* If there is no .block_size call then return minimum = preferred
* = maximum = 0, which is a sentinel meaning don't send the
* NBD_INFO_BLOCK_SIZE message.
*/
*minimum = *preferred = *maximum = 0;
return 0;
}
}
static int
normalize_bool (int value)
{
if (value == -1 || value == 0)
return value;
/* Normalize all other non-zero values to true */
return 1;
}
static int
plugin_can_write (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (p->plugin.can_write)
return normalize_bool (p->plugin.can_write (c->handle));
else
return p->plugin.pwrite || p->plugin._pwrite_v1;
}
static int
plugin_can_flush (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (p->plugin.can_flush)
return normalize_bool (p->plugin.can_flush (c->handle));
else
return p->plugin.flush || p->plugin._flush_v1;
}
static int
plugin_is_rotational (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (p->plugin.is_rotational)
return normalize_bool (p->plugin.is_rotational (c->handle));
else
return 0; /* assume false */
}
static int
plugin_can_trim (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (p->plugin.can_trim)
return normalize_bool (p->plugin.can_trim (c->handle));
else
return p->plugin.trim || p->plugin._trim_v1;
}
static int
plugin_can_zero (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
int r;
/* Note the special case here: the plugin's .can_zero returns a bool
* which controls only whether we call .zero; while the backend
* expects .can_zero to return a tri-state on level of support.
*/
if (p->plugin.can_zero) {
r = p->plugin.can_zero (c->handle);
if (r == -1)
return -1;
return r ? NBDKIT_ZERO_NATIVE : NBDKIT_ZERO_EMULATE;
}
if (p->plugin.zero || p->plugin._zero_v1)
return NBDKIT_ZERO_NATIVE;
return NBDKIT_ZERO_EMULATE;
}
static int
plugin_can_fast_zero (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
int r;
if (p->plugin.can_fast_zero)
return normalize_bool (p->plugin.can_fast_zero (c->handle));
/* Advertise support for fast zeroes if no .zero or .can_zero is
* false: in those cases, we fail fast instead of using .pwrite.
* This also works when v1 plugin has only ._zero_v1.
*/
if (p->plugin.zero == NULL)
return 1;
r = backend_can_zero (c);
if (r == -1)
return -1;
return !r;
}
static int
plugin_can_extents (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (p->plugin.can_extents)
return normalize_bool (p->plugin.can_extents (c->handle));
else
return p->plugin.extents != NULL;
}
static int
plugin_can_fua (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
int r;
/* The plugin must use API version 2 and have .can_fua return
NBDKIT_FUA_NATIVE before we will pass the FUA flag on. */
if (p->plugin.can_fua) {
r = p->plugin.can_fua (c->handle);
if (r > NBDKIT_FUA_EMULATE && p->plugin._api_version == 1)
r = NBDKIT_FUA_EMULATE;
return r;
}
/* We intend to call .flush even if .can_flush returns false. */
if (p->plugin.flush || p->plugin._flush_v1)
return NBDKIT_FUA_EMULATE;
return NBDKIT_FUA_NONE;
}
static int
plugin_can_multi_conn (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (p->plugin.can_multi_conn)
return normalize_bool (p->plugin.can_multi_conn (c->handle));
else
return 0; /* assume false */
}
static int
plugin_can_cache (struct context *c)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
if (p->plugin.can_cache)
return p->plugin.can_cache (c->handle);
if (p->plugin.cache)
return NBDKIT_CACHE_NATIVE;
return NBDKIT_CACHE_NONE;
}
/* Plugins and filters can call this to set the true errno, in cases
* where !errno_is_preserved.
*/
NBDKIT_DLL_PUBLIC void
nbdkit_set_error (int err)
{
threadlocal_set_errno (err);
}
/* Grab the appropriate error value. */
static int
get_errno (struct backend_plugin *p)
{
int ret = threadlocal_get_errno ();
if (!ret && p->plugin.errno_is_preserved != 0)
ret = errno;
return ret ? ret : EIO;
}
static int
plugin_pread (struct context *c,
void *buf, uint32_t count, uint64_t offset, uint32_t flags,
int *err)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
int r;
assert (p->plugin.pread || p->plugin._pread_v1);
if (p->plugin.pread)
r = p->plugin.pread (c->handle, buf, count, offset, 0);
else
r = p->plugin._pread_v1 (c->handle, buf, count, offset);
if (r == -1)
*err = get_errno (p);
return r;
}
static int
plugin_flush (struct context *c,
uint32_t flags, int *err)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
int r;
if (p->plugin.flush)
r = p->plugin.flush (c->handle, 0);
else if (p->plugin._flush_v1)
r = p->plugin._flush_v1 (c->handle);
else {
*err = EINVAL;
return -1;
}
if (r == -1)
*err = get_errno (p);
return r;
}
static int
plugin_pwrite (struct context *c,
const void *buf, uint32_t count, uint64_t offset, uint32_t flags,
int *err)
{
struct backend *b = c->b;
int r;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
bool fua = flags & NBDKIT_FLAG_FUA;
bool need_flush = false;
if (fua && backend_can_fua (c) != NBDKIT_FUA_NATIVE) {
flags &= ~NBDKIT_FLAG_FUA;
need_flush = true;
}
if (p->plugin.pwrite)
r = p->plugin.pwrite (c->handle, buf, count, offset, flags);
else if (p->plugin._pwrite_v1)
r = p->plugin._pwrite_v1 (c->handle, buf, count, offset);
else {
*err = EROFS;
return -1;
}
if (r != -1 && need_flush)
r = plugin_flush (c, 0, err);
if (r == -1 && !*err)
*err = get_errno (p);
return r;
}
static int
plugin_trim (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags, int *err)
{
struct backend *b = c->b;
int r;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
bool fua = flags & NBDKIT_FLAG_FUA;
bool need_flush = false;
if (fua && backend_can_fua (c) != NBDKIT_FUA_NATIVE) {
flags &= ~NBDKIT_FLAG_FUA;
need_flush = true;
}
if (p->plugin.trim)
r = p->plugin.trim (c->handle, count, offset, flags);
else if (p->plugin._trim_v1)
r = p->plugin._trim_v1 (c->handle, count, offset);
else {
*err = EINVAL;
return -1;
}
if (r != -1 && need_flush)
r = plugin_flush (c, 0, err);
if (r == -1 && !*err)
*err = get_errno (p);
return r;
}
static int
plugin_zero (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags, int *err)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
int r = -1;
bool may_trim = flags & NBDKIT_FLAG_MAY_TRIM;
bool fua = flags & NBDKIT_FLAG_FUA;
bool fast_zero = flags & NBDKIT_FLAG_FAST_ZERO;
bool emulate = false;
bool need_flush = false;
if (fua && backend_can_fua (c) != NBDKIT_FUA_NATIVE) {
flags &= ~NBDKIT_FLAG_FUA;
need_flush = true;
}
if (!count)
return 0;
if (backend_can_zero (c) == NBDKIT_ZERO_NATIVE) {
errno = 0;
if (p->plugin.zero)
r = p->plugin.zero (c->handle, count, offset, flags);
else if (p->plugin._zero_v1) {
if (fast_zero) {
*err = EOPNOTSUPP;
return -1;
}
r = p->plugin._zero_v1 (c->handle, count, offset, may_trim);
}
else
emulate = true;
if (r == -1)
*err = emulate ? EOPNOTSUPP : get_errno (p);
if (r == 0 || (*err != EOPNOTSUPP && *err != ENOTSUP))
goto done;
}
if (fast_zero) {
assert (r == -1);
*err = EOPNOTSUPP;
goto done;
}
flags &= ~NBDKIT_FLAG_MAY_TRIM;
threadlocal_set_errno (0);
*err = 0;
while (count) {
/* Always contains zeroes, but we can't use const or else gcc 9
* will use .rodata instead of .bss and inflate the binary size.
*/
static /* const */ char buf[MAX_REQUEST_SIZE];
uint32_t limit = MIN (count, sizeof buf);
r = plugin_pwrite (c, buf, limit, offset, flags, err);
if (r == -1)
break;
count -= limit;
}
done:
if (r != -1 && need_flush)
r = plugin_flush (c, 0, err);
if (r == -1 && !*err)
*err = get_errno (p);
return r;
}
static int
plugin_extents (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags,
struct nbdkit_extents *extents, int *err)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
int r;
if (p->plugin.extents == NULL) { /* Possible if .can_extents lied */
*err = EINVAL;
return -1;
}
r = p->plugin.extents (c->handle, count, offset, flags, extents);
if (r >= 0 && nbdkit_extents_count (extents) < 1) {
nbdkit_error ("extents: plugin must return at least one extent");
nbdkit_set_error (EINVAL);
r = -1;
}
if (r == -1)
*err = get_errno (p);
return r;
}
static int
plugin_cache (struct context *c,
uint32_t count, uint64_t offset, uint32_t flags,
int *err)
{
struct backend *b = c->b;
struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
int r;
/* A plugin may advertise caching but not provide .cache; in that
* case, caching is explicitly a no-op. */
if (!p->plugin.cache)
return 0;
r = p->plugin.cache (c->handle, count, offset, flags);
if (r == -1)
*err = get_errno (p);
return r;
}
static struct backend plugin_functions = {
.free = plugin_free,
.thread_model = plugin_thread_model,
.plugin_name = plugin_name,
.usage = plugin_usage,
.version = plugin_version,
.dump_fields = plugin_dump_fields,
.config = plugin_config,
.config_complete = plugin_config_complete,
.magic_config_key = plugin_magic_config_key,
.get_ready = plugin_get_ready,
.after_fork = plugin_after_fork,
.cleanup = plugin_cleanup,
.preconnect = plugin_preconnect,
.list_exports = plugin_list_exports,
.default_export = plugin_default_export,
.open = plugin_open,
.prepare = plugin_prepare,
.finalize = plugin_finalize,
.close = plugin_close,
.export_description = plugin_export_description,
.get_size = plugin_get_size,
.block_size = plugin_block_size,
.can_write = plugin_can_write,
.can_flush = plugin_can_flush,
.is_rotational = plugin_is_rotational,
.can_trim = plugin_can_trim,
.can_zero = plugin_can_zero,
.can_fast_zero = plugin_can_fast_zero,
.can_extents = plugin_can_extents,
.can_fua = plugin_can_fua,
.can_multi_conn = plugin_can_multi_conn,
.can_cache = plugin_can_cache,
.pread = plugin_pread,
.pwrite = plugin_pwrite,
.flush = plugin_flush,
.trim = plugin_trim,
.zero = plugin_zero,
.extents = plugin_extents,
.cache = plugin_cache,
};
/* Register and load a plugin. */
struct backend *
plugin_register (size_t index, const char *filename,
void *dl, plugin_init_function plugin_init)
{
struct backend_plugin *p;
const struct nbdkit_plugin *plugin;
size_t size;
p = malloc (sizeof *p);
if (p == NULL) {
perror ("strdup");
exit (EXIT_FAILURE);
}
p->backend = plugin_functions;
backend_init (&p->backend, NULL, index, filename, dl, "plugin");
/* Call the initialization function which returns the address of the
* plugin's own 'struct nbdkit_plugin'.
*/
plugin = plugin_init ();
if (!plugin) {
fprintf (stderr, "%s: %s: plugin registration function failed\n",
program_name, filename);
exit (EXIT_FAILURE);
}
/* Check for incompatible future versions. */
if (plugin->_api_version < 0 || plugin->_api_version > MAX_API_VERSION) {
fprintf (stderr,
"%s: %s: plugin is incompatible with this version of nbdkit "
"(_api_version = %d)\n",
program_name, filename, plugin->_api_version);
exit (EXIT_FAILURE);
}
/* Since the plugin might be much older than the current version of
* nbdkit, only copy up to the self-declared _struct_size of the
* plugin and zero out the rest. If the plugin is much newer then
* we'll only call the "old" fields.
*/
size = sizeof p->plugin; /* our struct */
memset (&p->plugin, 0, size);
if (size > plugin->_struct_size)
size = plugin->_struct_size;
memcpy (&p->plugin, plugin, size);
/* Check for the minimum fields which must exist in the
* plugin struct.
*/
if (p->plugin.open == NULL) {
fprintf (stderr, "%s: %s: plugin must have a .open callback\n",
program_name, filename);
exit (EXIT_FAILURE);
}
if (p->plugin.get_size == NULL) {
fprintf (stderr, "%s: %s: plugin must have a .get_size callback\n",
program_name, filename);
exit (EXIT_FAILURE);
}
if (p->plugin.pread == NULL && p->plugin._pread_v1 == NULL) {
fprintf (stderr, "%s: %s: plugin must have a .pread callback\n",
program_name, filename);
exit (EXIT_FAILURE);
}
backend_load (&p->backend, p->plugin.name, p->plugin.load);
return (struct backend *) p;
}
nbdkit-1.42.2/server/protocol.c 0000644 0001750 0001750 00000054704 14676465664 012111 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "internal.h"
#include "byte-swapping.h"
#include "minmax.h"
#include "nbd-protocol.h"
#include "protostrings.h"
static bool
validate_request (uint16_t cmd, uint16_t flags, uint64_t offset, uint32_t count,
uint32_t *error)
{
GET_CONN;
/* Readonly connection? */
if (conn->eflags & NBD_FLAG_READ_ONLY &&
(cmd == NBD_CMD_WRITE || cmd == NBD_CMD_TRIM ||
cmd == NBD_CMD_WRITE_ZEROES)) {
nbdkit_error ("invalid request: %s: write request on readonly connection",
name_of_nbd_cmd (cmd));
*error = EROFS;
return false;
}
/* Validate cmd, offset, count. */
switch (cmd) {
case NBD_CMD_READ:
case NBD_CMD_CACHE:
case NBD_CMD_WRITE:
case NBD_CMD_TRIM:
case NBD_CMD_WRITE_ZEROES:
case NBD_CMD_BLOCK_STATUS:
if (!backend_valid_range (conn->top_context, offset, count)) {
/* XXX Allow writes to extend the disk? */
nbdkit_error ("invalid request: %s: offset and count are out of range: "
"offset=%" PRIu64 " count=%" PRIu32,
name_of_nbd_cmd (cmd), offset, count);
*error = (cmd == NBD_CMD_WRITE ||
cmd == NBD_CMD_WRITE_ZEROES) ? ENOSPC : EINVAL;
return false;
}
break;
case NBD_CMD_FLUSH:
if (offset != 0 || count != 0) {
nbdkit_error ("invalid request: %s: expecting offset and count = 0",
name_of_nbd_cmd (cmd));
*error = EINVAL;
return false;
}
break;
default:
nbdkit_error ("invalid request: unknown command (%" PRIu32 ") ignored",
cmd);
*error = EINVAL;
return false;
}
/* Validate flags */
if (flags & ~(NBD_CMD_FLAG_FUA | NBD_CMD_FLAG_NO_HOLE |
NBD_CMD_FLAG_DF | NBD_CMD_FLAG_REQ_ONE |
NBD_CMD_FLAG_FAST_ZERO)) {
nbdkit_error ("invalid request: unknown flag (0x%x)", flags);
*error = EINVAL;
return false;
}
if ((flags & NBD_CMD_FLAG_NO_HOLE) &&
cmd != NBD_CMD_WRITE_ZEROES) {
nbdkit_error ("invalid request: NO_HOLE flag needs WRITE_ZEROES request");
*error = EINVAL;
return false;
}
if ((flags & NBD_CMD_FLAG_FAST_ZERO) &&
cmd != NBD_CMD_WRITE_ZEROES) {
nbdkit_error ("invalid request: "
"FAST_ZERO flag needs WRITE_ZEROES request");
*error = EINVAL;
return false;
}
if (flags & NBD_CMD_FLAG_DF) {
if (cmd != NBD_CMD_READ) {
nbdkit_error ("invalid request: DF flag needs READ request");
*error = EINVAL;
return false;
}
if (!conn->structured_replies) {
nbdkit_error ("invalid request: "
"%s: structured replies was not negotiated",
name_of_nbd_cmd (cmd));
*error = EINVAL;
return false;
}
}
if ((flags & NBD_CMD_FLAG_REQ_ONE) &&
cmd != NBD_CMD_BLOCK_STATUS) {
nbdkit_error ("invalid request: REQ_ONE flag needs BLOCK_STATUS request");
*error = EINVAL;
return false;
}
if (flags & NBD_CMD_FLAG_FUA && !(conn->eflags & NBD_FLAG_SEND_FUA)) {
nbdkit_error ("invalid request: FUA flag not supported");
*error = EINVAL;
return false;
}
/* Refuse over-large read and write requests. */
if ((cmd == NBD_CMD_WRITE || cmd == NBD_CMD_READ) &&
count > MAX_REQUEST_SIZE) {
nbdkit_error ("invalid request: %s: data request is too large (%" PRIu32
" > %d)",
name_of_nbd_cmd (cmd), count, MAX_REQUEST_SIZE);
*error = ENOMEM;
return false;
}
/* Flush allowed? */
if (cmd == NBD_CMD_FLUSH && !(conn->eflags & NBD_FLAG_SEND_FLUSH)) {
nbdkit_error ("invalid request: %s: flush operation not supported",
name_of_nbd_cmd (cmd));
*error = EINVAL;
return false;
}
/* Trim allowed? */
if (cmd == NBD_CMD_TRIM && !(conn->eflags & NBD_FLAG_SEND_TRIM)) {
nbdkit_error ("invalid request: %s: trim operation not supported",
name_of_nbd_cmd (cmd));
*error = EINVAL;
return false;
}
/* Zero allowed? */
if (cmd == NBD_CMD_WRITE_ZEROES &&
!(conn->eflags & NBD_FLAG_SEND_WRITE_ZEROES)) {
nbdkit_error ("invalid request: %s: write zeroes operation not supported",
name_of_nbd_cmd (cmd));
*error = EINVAL;
return false;
}
/* Cache allowed? */
if (cmd == NBD_CMD_CACHE && !(conn->eflags & NBD_FLAG_SEND_CACHE)) {
nbdkit_error ("invalid request: %s: cache operation not supported",
name_of_nbd_cmd (cmd));
*error = EINVAL;
return false;
}
/* Block status allowed? */
if (cmd == NBD_CMD_BLOCK_STATUS) {
if (!conn->structured_replies) {
nbdkit_error ("invalid request: "
"%s: structured replies was not negotiated",
name_of_nbd_cmd (cmd));
*error = EINVAL;
return false;
}
if (!conn->meta_context_base_allocation) {
nbdkit_error ("invalid request: "
"%s: base:allocation was not negotiated",
name_of_nbd_cmd (cmd));
*error = EINVAL;
return false;
}
}
return true; /* Command validates. */
}
/* This is called with the request lock held to actually execute the
* request (by calling the plugin). Note that the request fields have
* been validated already in 'validate_request' so we don't have to
* check them again.
*
* 'buf' is either the data to be written or the data to be returned,
* and points to a buffer of size 'count' bytes.
*
* 'extents' is an empty extents list used for block status requests
* only.
*
* In all cases, the return value is the system errno value that will
* later be converted to the nbd error to send back to the client (0
* for success).
*/
static uint32_t
handle_request (uint16_t cmd, uint16_t flags, uint64_t offset, uint32_t count,
void *buf, struct nbdkit_extents *extents)
{
GET_CONN;
struct context *c = conn->top_context;
uint32_t f = 0;
int err = 0;
/* Clear the error, so that we know if the plugin calls
* nbdkit_set_error() or relied on errno.
*/
threadlocal_set_errno (0);
/* Also clear the last error in this thread so we will only save
* nbdkit_error() from this request.
*/
threadlocal_clear_last_error ();
switch (cmd) {
case NBD_CMD_READ:
if (backend_pread (c, buf, count, offset, 0, &err) == -1)
return err;
break;
case NBD_CMD_WRITE:
if (flags & NBD_CMD_FLAG_FUA)
f |= NBDKIT_FLAG_FUA;
if (backend_pwrite (c, buf, count, offset, f, &err) == -1)
return err;
break;
case NBD_CMD_FLUSH:
if (backend_flush (c, 0, &err) == -1)
return err;
break;
case NBD_CMD_TRIM:
if (flags & NBD_CMD_FLAG_FUA)
f |= NBDKIT_FLAG_FUA;
if (backend_trim (c, count, offset, f, &err) == -1)
return err;
break;
case NBD_CMD_CACHE:
if (backend_cache (c, count, offset, 0, &err) == -1)
return err;
break;
case NBD_CMD_WRITE_ZEROES:
if (!(flags & NBD_CMD_FLAG_NO_HOLE))
f |= NBDKIT_FLAG_MAY_TRIM;
if (flags & NBD_CMD_FLAG_FUA)
f |= NBDKIT_FLAG_FUA;
if (flags & NBD_CMD_FLAG_FAST_ZERO)
f |= NBDKIT_FLAG_FAST_ZERO;
if (backend_zero (c, count, offset, f, &err) == -1)
return err;
break;
case NBD_CMD_BLOCK_STATUS:
if (flags & NBD_CMD_FLAG_REQ_ONE)
f |= NBDKIT_FLAG_REQ_ONE;
if (backend_extents (c, count, offset, f,
extents, &err) == -1)
return err;
break;
default:
abort ();
}
return 0;
}
static int
skip_over_write_buffer (int sock, size_t count)
{
char buf[BUFSIZ];
ssize_t r;
if (count > MAX_REQUEST_SIZE * 2) {
nbdkit_error ("write request too large to skip");
return -1;
}
while (count > 0) {
r = read (sock, buf, count > BUFSIZ ? BUFSIZ : count);
if (r == -1) {
nbdkit_error ("skipping write buffer: %m");
return -1;
}
if (r == 0) {
nbdkit_error ("unexpected early EOF");
errno = EBADMSG;
return -1;
}
count -= r;
}
return 0;
}
/* Convert a system errno to an NBD_E* error code. */
static int
nbd_errno (int error, uint16_t flags)
{
switch (error) {
case 0:
return NBD_SUCCESS;
case EROFS:
case EPERM:
return NBD_EPERM;
case EIO:
return NBD_EIO;
case ENOMEM:
return NBD_ENOMEM;
#ifdef EDQUOT
case EDQUOT:
#endif
case EFBIG:
case ENOSPC:
return NBD_ENOSPC;
#ifdef ESHUTDOWN
case ESHUTDOWN:
return NBD_ESHUTDOWN;
#endif
case ENOTSUP:
#if ENOTSUP != EOPNOTSUPP
case EOPNOTSUPP:
#endif
if (flags & NBD_CMD_FLAG_FAST_ZERO)
return NBD_ENOTSUP;
return NBD_EINVAL;
case EOVERFLOW:
if (flags & NBD_CMD_FLAG_DF)
return NBD_EOVERFLOW;
return NBD_EINVAL;
case EINVAL:
default:
return NBD_EINVAL;
}
}
static bool
send_simple_reply (uint64_t cookie, uint16_t cmd, uint16_t flags,
const char *buf, uint32_t count,
uint32_t error)
{
GET_CONN;
ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
struct nbd_simple_reply reply;
int r;
int f = (cmd == NBD_CMD_READ && !error) ? SEND_MORE : 0;
reply.magic = htobe32 (NBD_SIMPLE_REPLY_MAGIC);
reply.cookie = cookie;
reply.error = htobe32 (nbd_errno (error, flags));
r = conn->send (&reply, sizeof reply, f);
if (r == -1) {
nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
/* Send the read data buffer. */
if (cmd == NBD_CMD_READ && !error) {
r = conn->send (buf, count, 0);
if (r == -1) {
nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
}
return false;
}
static bool
send_structured_reply_read (uint64_t cookie, uint16_t cmd,
const char *buf, uint32_t count, uint64_t offset)
{
GET_CONN;
/* Once we are really using structured replies and sending data back
* in chunks, we'll be able to grab the write lock for each chunk,
* allowing other threads to interleave replies. As we're not doing
* that yet we acquire the lock for the whole function.
*/
ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
struct nbd_structured_reply reply;
struct nbd_chunk_offset_data offset_data;
int r;
assert (cmd == NBD_CMD_READ);
reply.magic = htobe32 (NBD_STRUCTURED_REPLY_MAGIC);
reply.cookie = cookie;
reply.flags = htobe16 (NBD_REPLY_FLAG_DONE);
reply.type = htobe16 (NBD_REPLY_TYPE_OFFSET_DATA);
reply.length = htobe32 (count + sizeof offset_data);
r = conn->send (&reply, sizeof reply, SEND_MORE);
if (r == -1) {
nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
/* Send the offset + read data buffer. */
offset_data.offset = htobe64 (offset);
r = conn->send (&offset_data, sizeof offset_data, SEND_MORE);
if (r == -1) {
nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
r = conn->send (buf, count, 0);
if (r == -1) {
nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
return false;
}
/* Convert a list of extents into NBD_REPLY_TYPE_BLOCK_STATUS blocks.
* The rules here are very complicated. Read the spec carefully!
*/
static struct nbd_block_descriptor_32 *
extents_to_block_descriptors (struct nbdkit_extents *extents,
uint16_t flags,
uint32_t count, uint64_t offset,
size_t *nr_blocks)
{
const bool req_one = flags & NBD_CMD_FLAG_REQ_ONE;
const size_t nr_extents = nbdkit_extents_count (extents);
size_t i;
struct nbd_block_descriptor_32 *blocks;
/* This is checked in server/plugins.c. */
assert (nr_extents >= 1);
/* We may send fewer than nr_extents blocks, but never more. */
blocks = calloc (req_one ? 1 : nr_extents,
sizeof (struct nbd_block_descriptor_32));
if (blocks == NULL) {
nbdkit_error ("calloc: %m");
return NULL;
}
if (req_one) {
const struct nbdkit_extent e = nbdkit_get_extent (extents, 0);
/* Checked as a side effect of how the extent list is created. */
assert (e.length > 0);
*nr_blocks = 1;
/* Must not exceed count of the original request. */
blocks[0].length = MIN (e.length, (uint64_t) count);
blocks[0].status_flags = e.type & 3;
}
else {
uint64_t pos = offset;
*nr_blocks = 0;
for (i = 0; i < nr_extents; ++i) {
const struct nbdkit_extent e = nbdkit_get_extent (extents, i);
uint64_t length;
if (i == 0)
assert (e.offset == offset);
/* Must not exceed UINT32_MAX. */
blocks[i].length = length = MIN (e.length, UINT32_MAX);
blocks[i].status_flags = e.type & 3;
(*nr_blocks)++;
pos += length;
if (pos > offset + count) /* this must be the last block */
break;
/* If we reach here then we must have consumed this whole
* extent. This is currently true because the server only sends
* 32 bit requests, but if we move to 64 bit requests we will
* need to revisit this code so it can split extents into
* multiple blocks. XXX
*/
assert (e.length <= length);
}
}
#if 0
for (i = 0; i < *nr_blocks; ++i)
debug ("block status: sending block %" PRIu32 " type %" PRIu32,
blocks[i].length, blocks[i].status_flags);
#endif
/* Convert to big endian for the protocol. */
for (i = 0; i < *nr_blocks; ++i) {
blocks[i].length = htobe32 (blocks[i].length);
blocks[i].status_flags = htobe32 (blocks[i].status_flags);
}
return blocks;
}
static bool
send_structured_reply_block_status (uint64_t cookie,
uint16_t cmd, uint16_t flags,
uint32_t count, uint64_t offset,
struct nbdkit_extents *extents)
{
GET_CONN;
ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
struct nbd_structured_reply reply;
CLEANUP_FREE struct nbd_block_descriptor_32 *blocks = NULL;
size_t nr_blocks;
uint32_t context_id;
size_t i;
int r;
assert (conn->meta_context_base_allocation);
assert (cmd == NBD_CMD_BLOCK_STATUS);
blocks = extents_to_block_descriptors (extents, flags, count, offset,
&nr_blocks);
if (blocks == NULL)
return connection_set_status (STATUS_DEAD);
reply.magic = htobe32 (NBD_STRUCTURED_REPLY_MAGIC);
reply.cookie = cookie;
reply.flags = htobe16 (NBD_REPLY_FLAG_DONE);
reply.type = htobe16 (NBD_REPLY_TYPE_BLOCK_STATUS);
reply.length = htobe32 (sizeof context_id +
nr_blocks * sizeof (struct nbd_block_descriptor_32));
r = conn->send (&reply, sizeof reply, SEND_MORE);
if (r == -1) {
nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
/* Send the base:allocation context ID. */
context_id = htobe32 (base_allocation_id);
r = conn->send (&context_id, sizeof context_id, SEND_MORE);
if (r == -1) {
nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
/* Send each block descriptor. */
for (i = 0; i < nr_blocks; ++i) {
r = conn->send (&blocks[i], sizeof blocks[i],
i == nr_blocks - 1 ? 0 : SEND_MORE);
if (r == -1) {
nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
}
return false;
}
static bool
send_structured_reply_error (uint64_t cookie, uint16_t cmd, uint16_t flags,
uint32_t error)
{
GET_CONN;
ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
struct nbd_structured_reply reply;
struct nbd_chunk_error error_data;
int r;
reply.magic = htobe32 (NBD_STRUCTURED_REPLY_MAGIC);
reply.cookie = cookie;
reply.flags = htobe16 (NBD_REPLY_FLAG_DONE);
reply.type = htobe16 (NBD_REPLY_TYPE_ERROR);
reply.length = htobe32 (0 /* no human readable error */ + sizeof error_data);
r = conn->send (&reply, sizeof reply, SEND_MORE);
if (r == -1) {
nbdkit_error ("write error reply: %m");
return connection_set_status (STATUS_DEAD);
}
/* Send the error. */
error_data.error = htobe32 (nbd_errno (error, flags));
error_data.len = htobe16 (0);
r = conn->send (&error_data, sizeof error_data, 0);
if (r == -1) {
nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
/* No human readable error message at the moment. */
return false;
}
/* Do a recv/send sequence. Return true if the caller should shutdown. */
bool
protocol_recv_request_send_reply (void)
{
GET_CONN;
int r;
conn_status cs;
struct nbd_request request;
uint16_t cmd, flags;
uint32_t magic, count, error = 0;
uint64_t offset;
char *buf = NULL;
CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents = NULL;
/* Read the request packet. */
{
ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->read_lock);
r = conn->recv (&request, sizeof request);
cs = connection_get_status ();
if (cs <= STATUS_CLIENT_DONE)
return false;
if (r == -1) {
nbdkit_error ("read request: %m");
return connection_set_status (STATUS_DEAD);
}
if (r == 0) {
debug ("client closed input socket, closing connection");
return connection_set_status (STATUS_CLIENT_DONE); /* disconnect */
}
magic = be32toh (request.magic);
if (magic != NBD_REQUEST_MAGIC) {
nbdkit_error ("invalid request: 'magic' field is incorrect (0x%x)",
magic);
return connection_set_status (STATUS_DEAD);
}
flags = be16toh (request.flags);
cmd = be16toh (request.type);
offset = be64toh (request.offset);
count = be32toh (request.count);
if (cmd == NBD_CMD_DISC) {
debug ("client sent %s, closing connection", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_CLIENT_DONE); /* disconnect */
}
/* Validate the request. */
if (!validate_request (cmd, flags, offset, count, &error)) {
if (cmd == NBD_CMD_WRITE &&
skip_over_write_buffer (conn->sockin, count) < 0) {
return connection_set_status (STATUS_DEAD);
}
goto send_reply;
}
/* Get the data buffer used for either read or write requests.
* This is a common per-thread data buffer, it must not be freed.
*/
if (cmd == NBD_CMD_READ || cmd == NBD_CMD_WRITE) {
buf = threadlocal_buffer ((size_t) count);
if (buf == NULL) {
error = ENOMEM;
if (cmd == NBD_CMD_WRITE &&
skip_over_write_buffer (conn->sockin, count) < 0) {
return connection_set_status (STATUS_DEAD);
}
goto send_reply;
}
}
/* Allocate the extents list for block status only. */
if (cmd == NBD_CMD_BLOCK_STATUS) {
extents = nbdkit_extents_new (offset,
backend_get_size (conn->top_context));
if (extents == NULL) {
error = ENOMEM;
goto send_reply;
}
}
/* Receive the write data buffer. */
if (cmd == NBD_CMD_WRITE) {
r = conn->recv (buf, count);
if (r == 0) {
errno = EBADMSG;
r = -1;
}
if (r == -1) {
nbdkit_error ("read data: %s: %m", name_of_nbd_cmd (cmd));
return connection_set_status (STATUS_DEAD);
}
}
}
/* Perform the request. Only this part happens inside the request lock. */
if (quit || cs < STATUS_ACTIVE) {
error = ESHUTDOWN;
}
else {
lock_request ();
error = handle_request (cmd, flags, offset, count, buf, extents);
assert ((int) error >= 0);
unlock_request ();
}
/* Send the reply packet. */
send_reply:
if (connection_get_status () < STATUS_CLIENT_DONE)
return false;
if (error != 0) {
/* Since we're about to send only the limited NBD_E* errno to the
* client, don't lose the information about what really happened
* on the server side. Make sure there is a way for the operator
* to retrieve the real error.
*/
debug ("sending error reply: %s", strerror (error));
}
/* Currently we prefer to send simple replies for everything except
* where we have to (ie. NBD_CMD_READ and NBD_CMD_BLOCK_STATUS when
* structured_replies have been negotiated). However this prevents
* us from sending human-readable error messages to the client, so
* we should reconsider this in future.
*/
if (!conn->structured_replies ||
(cmd != NBD_CMD_READ && cmd != NBD_CMD_BLOCK_STATUS))
return send_simple_reply (request.cookie, cmd, flags, buf, count, error);
if (error)
return send_structured_reply_error (request.cookie, cmd, flags, error);
if (cmd == NBD_CMD_READ)
return send_structured_reply_read (request.cookie, cmd, buf, count,
offset);
/* NBD_CMD_BLOCK_STATUS */
return send_structured_reply_block_status (request.cookie, cmd, flags,
count, offset, extents);
}
nbdkit-1.42.2/server/protocol-handshake.c 0000644 0001750 0001750 00000011235 14676465664 014025 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include "internal.h"
#include "byte-swapping.h"
#include "nbd-protocol.h"
int
protocol_handshake (void)
{
int r;
lock_request ();
if (!newstyle)
r = protocol_handshake_oldstyle ();
else
r = protocol_handshake_newstyle ();
unlock_request ();
return r;
}
/* Common code used by oldstyle and newstyle protocols to:
*
* - call the backend .open method
*
* - get the export size
*
* - compute the eflags (same between oldstyle and newstyle
* protocols)
*
* The protocols must defer this as late as possible so that
* unauthorized clients can't cause unnecessary work in .open by
* simply opening a TCP connection.
*/
int
protocol_common_open (uint64_t *exportsize, uint16_t *flags,
const char *exportname)
{
GET_CONN;
int64_t size;
uint16_t eflags = NBD_FLAG_HAS_FLAGS;
int fl;
conn->top_context = backend_open (top, read_only, exportname, false);
if (conn->top_context == NULL)
return -1;
/* Prepare (for filters), called just after open. */
if (backend_prepare (conn->top_context) == -1)
return -1;
size = backend_get_size (conn->top_context);
if (size == -1)
return -1;
if (size < 0) {
nbdkit_error (".get_size function returned invalid value "
"(%" PRIi64 ")", size);
return -1;
}
/* Check all flags even if they won't be advertised, to prime the
* cache and make later request validation easier.
*/
fl = backend_can_write (conn->top_context);
if (fl == -1)
return -1;
if (!fl)
eflags |= NBD_FLAG_READ_ONLY;
fl = backend_can_zero (conn->top_context);
if (fl == -1)
return -1;
if (fl)
eflags |= NBD_FLAG_SEND_WRITE_ZEROES;
fl = backend_can_fast_zero (conn->top_context);
if (fl == -1)
return -1;
if (fl)
eflags |= NBD_FLAG_SEND_FAST_ZERO;
fl = backend_can_trim (conn->top_context);
if (fl == -1)
return -1;
if (fl)
eflags |= NBD_FLAG_SEND_TRIM;
fl = backend_can_fua (conn->top_context);
if (fl == -1)
return -1;
if (fl)
eflags |= NBD_FLAG_SEND_FUA;
fl = backend_can_flush (conn->top_context);
if (fl == -1)
return -1;
if (fl)
eflags |= NBD_FLAG_SEND_FLUSH;
fl = backend_is_rotational (conn->top_context);
if (fl == -1)
return -1;
if (fl)
eflags |= NBD_FLAG_ROTATIONAL;
/* multi-conn is useless if parallel connections are not allowed. */
fl = backend_can_multi_conn (conn->top_context);
if (fl == -1)
return -1;
if (fl && (thread_model > NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS))
eflags |= NBD_FLAG_CAN_MULTI_CONN;
fl = backend_can_cache (conn->top_context);
if (fl == -1)
return -1;
if (fl)
eflags |= NBD_FLAG_SEND_CACHE;
/* The result of this is not directly advertised as part of the
* handshake, but priming the cache here makes BLOCK_STATUS handling
* not have to worry about errors, and makes test-layers easier to
* write.
*/
fl = backend_can_extents (conn->top_context);
if (fl == -1)
return -1;
if (conn->structured_replies)
eflags |= NBD_FLAG_SEND_DF;
*exportsize = size;
*flags = eflags;
return 0;
}
nbdkit-1.42.2/server/protocol-handshake-oldstyle.c 0000644 0001750 0001750 00000005102 14534316443 015635 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include "internal.h"
#include "byte-swapping.h"
#include "nbd-protocol.h"
int
protocol_handshake_oldstyle (void)
{
GET_CONN;
struct nbd_old_handshake handshake;
uint64_t exportsize;
uint16_t gflags, eflags;
assert (tls != 2); /* Already filtered in main */
/* With oldstyle, our only option if .open or friends fail is to
* disconnect, as we cannot report the problem to the client.
*/
if (protocol_common_open (&exportsize, &eflags, "") == -1)
return -1;
gflags = 0;
debug ("oldstyle negotiation: flags: global 0x%x export 0x%x",
gflags, eflags);
memset (&handshake, 0, sizeof handshake);
handshake.nbdmagic = htobe64 (NBD_MAGIC);
handshake.version = htobe64 (NBD_OLD_VERSION);
handshake.exportsize = htobe64 (exportsize);
handshake.gflags = htobe16 (gflags);
handshake.eflags = htobe16 (eflags);
if (conn->send (&handshake, sizeof handshake, 0) == -1) {
nbdkit_error ("write: %m");
return -1;
}
return 0;
}
nbdkit-1.42.2/server/protocol-handshake-newstyle.c 0000644 0001750 0001750 00000104666 14676465664 015710 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include "internal.h"
#include "byte-swapping.h"
#include "nbd-protocol.h"
#include "protostrings.h"
#include "strndup.h"
/* Initial bound of client options we allow before giving up.
* However, a client that issues NBD_OPT_LIST is permitted to follow
* up with another round of options per export listed.
*/
#define MAX_NR_OPTIONS 32
/* Receive newstyle options. */
static int
send_newstyle_option_reply (uint32_t option, uint32_t reply)
{
GET_CONN;
struct nbd_fixed_new_option_reply fixed_new_option_reply;
const char *last_error = NULL;
uint32_t replylen = 0;
if (NBD_REP_IS_ERR (reply)) {
last_error = threadlocal_get_last_error ();
/* Note that calling nbdkit_error will invalidate last_error, so
* be careful below.
*/
if (last_error) {
size_t len = strlen (last_error);
if (len <= NBD_MAX_STRING)
replylen = len;
}
}
fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
fixed_new_option_reply.option = htobe32 (option);
fixed_new_option_reply.reply = htobe32 (reply);
fixed_new_option_reply.replylen = htobe32 (replylen);
debug ("replying to %s with %s", name_of_nbd_opt (option),
name_of_nbd_rep (reply));
if (conn->send (&fixed_new_option_reply,
sizeof fixed_new_option_reply,
replylen > 0 ? SEND_MORE : 0) == -1)
goto err;
if (replylen > 0 && conn->send (last_error, replylen, 0) == -1)
goto err;
return 0;
err:
/* The protocol document says that the client is allowed to simply
* drop the connection after sending NBD_OPT_ABORT, or may read
* the reply.
*/
if (option == NBD_OPT_ABORT)
debug ("write: %s: %m", name_of_nbd_opt (option));
else
nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
return -1;
}
/* Reply to NBD_OPT_LIST with the plugin's list of export names.
*/
static int
send_newstyle_option_reply_exportnames (uint32_t option, size_t *nr_options)
{
GET_CONN;
struct nbd_fixed_new_option_reply fixed_new_option_reply;
size_t i, list_len;
CLEANUP_EXPORTS_FREE struct nbdkit_exports *exps = NULL;
exps = nbdkit_exports_new ();
if (exps == NULL)
return send_newstyle_option_reply (option, NBD_REP_ERR_TOO_BIG);
if (backend_list_exports (top, read_only, exps) == -1)
return send_newstyle_option_reply (option, NBD_REP_ERR_PLATFORM);
/* Allow additional per-export NBD_OPT_INFO and friends. */
list_len = nbdkit_exports_count (exps);
*nr_options += MAX_NR_OPTIONS * list_len;
for (i = 0; i < list_len; i++) {
const struct nbdkit_export export = nbdkit_get_export (exps, i);
size_t name_len = strlen (export.name);
size_t desc_len = export.description ? strlen (export.description) : 0;
uint32_t len;
fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
fixed_new_option_reply.option = htobe32 (option);
fixed_new_option_reply.reply = htobe32 (NBD_REP_SERVER);
fixed_new_option_reply.replylen = htobe32 (name_len + sizeof (len) +
desc_len);
if (conn->send (&fixed_new_option_reply,
sizeof fixed_new_option_reply, SEND_MORE) == -1) {
nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
return -1;
}
len = htobe32 (name_len);
if (conn->send (&len, sizeof len, SEND_MORE) == -1) {
nbdkit_error ("write: %s: %s: %m",
name_of_nbd_opt (option), "sending length");
return -1;
}
if (conn->send (export.name, name_len, SEND_MORE) == -1) {
nbdkit_error ("write: %s: %s: %m",
name_of_nbd_opt (option), "sending export name");
return -1;
}
if (conn->send (export.description, desc_len, 0) == -1) {
nbdkit_error ("write: %s: %s: %m",
name_of_nbd_opt (option), "sending export description");
return -1;
}
}
return send_newstyle_option_reply (option, NBD_REP_ACK);
}
static int
send_newstyle_option_reply_info_export (uint32_t option, uint32_t reply,
uint16_t info, uint64_t exportsize)
{
GET_CONN;
struct nbd_fixed_new_option_reply fixed_new_option_reply;
struct nbd_fixed_new_option_reply_info_export export;
fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
fixed_new_option_reply.option = htobe32 (option);
fixed_new_option_reply.reply = htobe32 (reply);
fixed_new_option_reply.replylen = htobe32 (sizeof export);
export.info = htobe16 (info);
export.exportsize = htobe64 (exportsize);
export.eflags = htobe16 (conn->eflags);
if (conn->send (&fixed_new_option_reply,
sizeof fixed_new_option_reply, SEND_MORE) == -1 ||
conn->send (&export, sizeof export, 0) == -1) {
nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
return -1;
}
return 0;
}
/* Can be used for NBD_INFO_NAME and NBD_INFO_DESCRIPTION. */
static int
send_newstyle_option_reply_info_str (uint32_t option, uint32_t reply,
uint16_t info, const char *str,
size_t len)
{
GET_CONN;
struct nbd_fixed_new_option_reply fixed_new_option_reply;
struct nbd_fixed_new_option_reply_info_name_or_desc name;
if (len == -1)
len = strlen (str);
assert (len <= NBD_MAX_STRING);
fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
fixed_new_option_reply.option = htobe32 (option);
fixed_new_option_reply.reply = htobe32 (reply);
fixed_new_option_reply.replylen = htobe32 (sizeof info + len);
name.info = htobe16 (info);
if (conn->send (&fixed_new_option_reply,
sizeof fixed_new_option_reply, SEND_MORE) == -1 ||
conn->send (&name, sizeof name, SEND_MORE) == -1 ||
conn->send (str, len, 0) == -1) {
nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
return -1;
}
return 0;
}
/* Send reply containing NBD_INFO_BLOCK_SIZE. */
static int
send_newstyle_option_reply_info_block_size (uint32_t option, uint32_t reply,
uint16_t info,
uint32_t minimum,
uint32_t preferred,
uint32_t maximum)
{
GET_CONN;
struct nbd_fixed_new_option_reply fixed_new_option_reply;
struct nbd_fixed_new_option_reply_info_block_size block_size;
fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
fixed_new_option_reply.option = htobe32 (option);
fixed_new_option_reply.reply = htobe32 (reply);
fixed_new_option_reply.replylen = htobe32 (14);
block_size.info = htobe16 (info);
block_size.minimum = htobe32 (minimum);
block_size.preferred = htobe32 (preferred);
block_size.maximum = htobe32 (maximum);
if (conn->send (&fixed_new_option_reply,
sizeof fixed_new_option_reply, SEND_MORE) == -1 ||
conn->send (&block_size,
sizeof block_size, 0) == -1) {
nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
return -1;
}
return 0;
}
static int
send_newstyle_option_reply_meta_context (uint32_t option, uint32_t reply,
uint32_t context_id,
const char *name)
{
GET_CONN;
struct nbd_fixed_new_option_reply fixed_new_option_reply;
struct nbd_fixed_new_option_reply_meta_context context;
const size_t namelen = strlen (name);
debug ("newstyle negotiation: %s: replying with %s id %d",
name_of_nbd_opt (option), name, context_id);
fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
fixed_new_option_reply.option = htobe32 (option);
fixed_new_option_reply.reply = htobe32 (reply);
fixed_new_option_reply.replylen = htobe32 (sizeof context + namelen);
context.context_id = htobe32 (context_id);
if (conn->send (&fixed_new_option_reply,
sizeof fixed_new_option_reply, SEND_MORE) == -1 ||
conn->send (&context, sizeof context, SEND_MORE) == -1 ||
conn->send (name, namelen, 0) == -1) {
nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
return -1;
}
return 0;
}
/* Sub-function during negotiate_handshake_newstyle, to uniformly handle
* a client hanging up on a message boundary.
*/
static int ATTRIBUTE_FORMAT_PRINTF (3, 4)
conn_recv_full (void *buf, size_t len, const char *fmt, ...)
{
GET_CONN;
int r = conn->recv (buf, len);
va_list args;
if (r == -1) {
va_start (args, fmt);
nbdkit_verror (fmt, args);
va_end (args);
return -1;
}
if (r == 0) {
/* During negotiation, client EOF on message boundary is less
* severe than failure in the middle of the buffer. */
debug ("client closed input socket, closing connection");
return -1;
}
return r;
}
/* Sub-function of negotiate_handshake_newstyle_options below. It
* must be called on all non-error paths out of the options for-loop
* in that function, and must not cause any wire traffic.
*/
static int
finish_newstyle_options (uint64_t *exportsize,
const char *exportname_in, uint32_t exportnamelen)
{
GET_CONN;
/* Since the exportname string passed here comes directly out of the
* NBD protocol make a temporary copy of the exportname into a
* \0-terminated buffer.
*/
CLEANUP_FREE char *exportname = strndup (exportname_in, exportnamelen);
if (exportname == NULL) {
nbdkit_error ("strndup: %m");
return -1;
}
/* The NBD spec says that if the client later uses NBD_OPT_GO on a
* different export, then the context from the earlier
* NBD_OPT_SET_META_CONTEXT is not usable so discard it.
*/
if (conn->exportname_from_set_meta_context &&
strcmp (conn->exportname_from_set_meta_context, exportname) != 0) {
debug ("newstyle negotiation: NBD_OPT_SET_META_CONTEXT export name \"%s\" "
"≠final client exportname \"%s\", "
"so discarding the previous context",
conn->exportname_from_set_meta_context, exportname);
conn->meta_context_base_allocation = false;
}
if (protocol_common_open (exportsize, &conn->eflags, exportname) == -1)
return -1;
debug ("newstyle negotiation: flags: export 0x%x", conn->eflags);
return 0;
}
/* Check that the string sent as part of @option, beginning at @buf,
* and with a client-reported length of @len, fits within @maxlen
* bytes and is well-formed. If not, report an error mentioning
* @name.
*/
static int
check_string (uint32_t option, char *buf, uint32_t len, uint32_t maxlen,
const char *name)
{
if (len > NBD_MAX_STRING || len > maxlen) {
nbdkit_error ("%s: %s too long", name_of_nbd_opt (option), name);
return -1;
}
if (strnlen (buf, len) != len) {
nbdkit_error ("%s: %s may not include NUL bytes",
name_of_nbd_opt (option), name);
return -1;
}
/* TODO: Check for valid UTF-8? */
return 0;
}
/* Sub-function of negotiate_handshake_newstyle_options, to grab and
* validate an export name.
*/
static int
check_export_name (uint32_t option, char *buf,
uint32_t exportnamelen, uint32_t maxlen)
{
GET_CONN;
if (check_string (option, buf, exportnamelen, maxlen, "export name") == -1)
return -1;
debug ("newstyle negotiation: %s: client requested export '%.*s'",
name_of_nbd_opt (option), (int) exportnamelen, buf);
return 0;
}
static int
negotiate_handshake_newstyle_options (void)
{
GET_CONN;
struct nbd_new_option new_option;
size_t nr_options;
bool list_seen = false;
uint64_t version;
uint32_t option;
uint32_t optlen;
struct nbd_export_name_option_reply handshake_finish;
const char *optname;
uint64_t exportsize;
struct backend *b;
for (nr_options = MAX_NR_OPTIONS; nr_options > 0; --nr_options) {
CLEANUP_FREE char *data = NULL;
if (conn_recv_full (&new_option, sizeof new_option,
"reading option: conn->recv: %m") == -1)
return -1;
version = be64toh (new_option.version);
if (version != NBD_NEW_VERSION) {
nbdkit_error ("unknown option version %" PRIx64
", expecting %" PRIx64,
version, NBD_NEW_VERSION);
return -1;
}
/* There is a maximum option length we will accept, regardless
* of the option type.
*/
optlen = be32toh (new_option.optlen);
if (optlen > MAX_REQUEST_SIZE) {
nbdkit_error ("client option data too long (%" PRIu32 ")", optlen);
return -1;
}
data = malloc (optlen + 1); /* Allowing a trailing NUL helps some uses */
if (data == NULL) {
nbdkit_error ("malloc: %m");
return -1;
}
option = be32toh (new_option.option);
optname = name_of_nbd_opt (option);
/* If the client lacks fixed newstyle support, it should only send
* NBD_OPT_EXPORT_NAME.
*/
if (!(conn->cflags & NBD_FLAG_FIXED_NEWSTYLE) &&
option != NBD_OPT_EXPORT_NAME) {
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID))
return -1;
continue;
}
/* In --tls=require / FORCEDTLS mode the only options allowed
* before TLS negotiation are NBD_OPT_ABORT and NBD_OPT_STARTTLS.
*/
if (tls == 2 && !conn->using_tls &&
!(option == NBD_OPT_ABORT || option == NBD_OPT_STARTTLS)) {
if (option == NBD_OPT_EXPORT_NAME) {
debug ("newstyle negotiation: can't reply NBD_REP_ERR_TLS_REQD to %s",
name_of_nbd_opt (option));
return -1;
}
if (send_newstyle_option_reply (option, NBD_REP_ERR_TLS_REQD))
return -1;
if (conn_recv_full (data, optlen,
"waiting for starttls: %m") == -1)
return -1;
continue;
}
switch (option) {
case NBD_OPT_EXPORT_NAME:
if (conn_recv_full (data, optlen,
"read: %s: %m", name_of_nbd_opt (option)) == -1)
return -1;
if (check_export_name (option, data, optlen, optlen) == -1)
return -1;
/* We have to finish the handshake by sending handshake_finish.
* On failure, we have to disconnect.
*/
if (finish_newstyle_options (&exportsize, data, optlen) == -1)
return -1;
memset (&handshake_finish, 0, sizeof handshake_finish);
handshake_finish.exportsize = htobe64 (exportsize);
handshake_finish.eflags = htobe16 (conn->eflags);
if (conn->send (&handshake_finish,
(conn->cflags & NBD_FLAG_NO_ZEROES)
? offsetof (struct nbd_export_name_option_reply, zeroes)
: sizeof handshake_finish, 0) == -1) {
nbdkit_error ("write: %s: %m", optname);
return -1;
}
break;
case NBD_OPT_ABORT:
if (send_newstyle_option_reply (option, NBD_REP_ACK) == -1)
return -1;
debug ("client sent %s to abort the connection",
name_of_nbd_opt (option));
return -1;
case NBD_OPT_LIST:
if (optlen != 0) {
debug ("ignoring request, client sent unexpected payload: %s",
name_of_nbd_opt (option));
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID)
== -1)
return -1;
if (conn_recv_full (data, optlen,
"read: %s: %m", name_of_nbd_opt (option)) == -1)
return -1;
continue;
}
if (list_seen) {
debug ("newstyle negotiation: %s: export list already advertised",
name_of_nbd_opt (option));
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID) == -1)
return -1;
continue;
}
else {
/* Send back the exportname list. */
debug ("newstyle negotiation: %s: advertising exports",
name_of_nbd_opt (option));
if (send_newstyle_option_reply_exportnames (option, &nr_options) == -1)
return -1;
list_seen = true;
}
break;
case NBD_OPT_STARTTLS:
if (optlen != 0) {
debug ("ignoring request, client sent unexpected payload: %s",
name_of_nbd_opt (option));
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID)
== -1)
return -1;
if (conn_recv_full (data, optlen,
"read: %s: %m", name_of_nbd_opt (option)) == -1)
return -1;
continue;
}
if (tls == 0) { /* --tls=off (NOTLS mode). */
#ifdef HAVE_GNUTLS
#define NO_TLS_REPLY NBD_REP_ERR_POLICY
#else
#define NO_TLS_REPLY NBD_REP_ERR_UNSUP
#endif
if (send_newstyle_option_reply (option, NO_TLS_REPLY) == -1)
return -1;
}
else /* --tls=on or --tls=require */ {
/* We can't upgrade to TLS twice on the same connection. */
if (conn->using_tls) {
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID) == -1)
return -1;
continue;
}
/* We have to send the (unencrypted) reply before starting
* the handshake.
*/
if (send_newstyle_option_reply (option, NBD_REP_ACK) == -1)
return -1;
/* Upgrade the connection to TLS. Also performs access control. */
if (crypto_negotiate_tls (conn->sockin, conn->sockout) == -1)
return -1;
conn->using_tls = true;
debug ("using TLS on this connection");
/* Wipe out any cached state. */
conn->structured_replies = false;
free (conn->exportname_from_set_meta_context);
conn->exportname_from_set_meta_context = NULL;
conn->meta_context_base_allocation = false;
for_each_backend (b) {
free (conn->default_exportname[b->i]);
conn->default_exportname[b->i] = NULL;
}
}
break;
case NBD_OPT_INFO:
case NBD_OPT_GO:
if (conn_recv_full (data, optlen, "read: %s: %m", optname) == -1)
return -1;
if (optlen < 6) { /* 32 bit export length + 16 bit nr info */
debug ("newstyle negotiation: %s option length < 6", optname);
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID)
== -1)
return -1;
continue;
}
{
uint32_t exportnamelen;
uint16_t nrinfos;
uint16_t info;
size_t i;
/* Validate the name length and number of INFO requests. */
memcpy (&exportnamelen, &data[0], 4);
exportnamelen = be32toh (exportnamelen);
if (exportnamelen > optlen-6 /* NB optlen >= 6, see above */) {
debug ("newstyle negotiation: %s: export name too long", optname);
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID)
== -1)
return -1;
continue;
}
memcpy (&nrinfos, &data[exportnamelen+4], 2);
nrinfos = be16toh (nrinfos);
if (optlen != 4 + exportnamelen + 2 + 2*nrinfos) {
debug ("newstyle negotiation: %s: "
"number of information requests incorrect", optname);
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID)
== -1)
return -1;
continue;
}
/* As with NBD_OPT_EXPORT_NAME we print the export name and
* save it in the connection. If an earlier
* NBD_OPT_SET_META_CONTEXT used an export name, it must match
* or else we drop the support for that context.
*/
if (check_export_name (option, &data[4], exportnamelen,
optlen - 6) == -1) {
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID)
== -1)
return -1;
continue;
}
/* The spec is confusing, but it is required that we send back
* NBD_INFO_EXPORT, even if the client did not request it!
* qemu client in particular does not request this, but will
* fail if we don't send it. Note that if .open fails, but we
* succeed at .close, then we merely return an error to the
* client and let them try another NBD_OPT, rather than
* disconnecting.
*/
if (finish_newstyle_options (&exportsize,
&data[4], exportnamelen) == -1) {
if (conn->top_context) {
if (backend_finalize (conn->top_context) == -1)
return -1;
backend_close (conn->top_context);
conn->top_context = NULL;
}
if (send_newstyle_option_reply (option, NBD_REP_ERR_UNKNOWN) == -1)
return -1;
continue;
}
assert (conn->top_context);
if (send_newstyle_option_reply_info_export (option,
NBD_REP_INFO,
NBD_INFO_EXPORT,
exportsize) == -1)
return -1;
/* For now we send NBD_INFO_NAME, NBD_INFO_DESCRIPTION and
* NBD_INFO_BLOCK_SIZE if requested, and ignore all other info
* requests (including NBD_INFO_EXPORT if it was requested,
* because we replied already above).
*/
for (i = 0; i < nrinfos; ++i) {
memcpy (&info, &data[4 + exportnamelen + 2 + i*2], 2);
info = be16toh (info);
switch (info) {
case NBD_INFO_EXPORT: /* ignore - reply sent above */ break;
case NBD_INFO_NAME:
{
const char *name = &data[4];
size_t namelen = exportnamelen;
if (exportnamelen == 0) {
name = backend_default_export (top, read_only);
if (!name) {
debug ("newstyle negotiation: %s: "
"NBD_INFO_NAME: no name to send", optname);
break;
}
namelen = -1;
}
if (send_newstyle_option_reply_info_str (option,
NBD_REP_INFO,
NBD_INFO_NAME,
name, namelen) == -1)
return -1;
}
break;
case NBD_INFO_DESCRIPTION:
{
const char *desc = backend_export_description (conn->top_context);
if (!desc) {
debug ("newstyle negotiation: %s: "
"NBD_INFO_DESCRIPTION: no description to send",
optname);
break;
}
if (send_newstyle_option_reply_info_str (option,
NBD_REP_INFO,
NBD_INFO_DESCRIPTION,
desc, -1) == -1)
return -1;
}
break;
case NBD_INFO_BLOCK_SIZE:
{
uint32_t minimum, preferred, maximum;
if (backend_block_size (conn->top_context,
&minimum, &preferred, &maximum) == -1)
return -1;
if (minimum == 0) {
debug ("newstyle negotiation: %s: "
"NBD_INFO_BLOCK_SIZE: client requested but "
"no plugin or filter provided block size information, "
"ignoring client request",
optname);
break;
}
if (send_newstyle_option_reply_info_block_size
(option,
NBD_REP_INFO,
NBD_INFO_BLOCK_SIZE,
minimum, preferred, maximum) == -1)
return -1;
}
break;
default:
debug ("newstyle negotiation: %s: "
"ignoring NBD_INFO_* request %u (%s)",
optname, (unsigned) info, name_of_nbd_info (info));
break;
}
}
}
/* Unlike NBD_OPT_EXPORT_NAME, NBD_OPT_GO sends back an ACK
* or ERROR packet. If this was NBD_OPT_LIST, call .close.
*/
if (send_newstyle_option_reply (option, NBD_REP_ACK) == -1)
return -1;
if (option == NBD_OPT_INFO) {
if (backend_finalize (conn->top_context) == -1)
return -1;
backend_close (conn->top_context);
conn->top_context = NULL;
}
break;
case NBD_OPT_STRUCTURED_REPLY:
if (optlen != 0) {
debug ("ignoring request, client sent unexpected payload: %s",
name_of_nbd_opt (option));
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID)
== -1)
return -1;
if (conn_recv_full (data, optlen,
"read: %s: %m", name_of_nbd_opt (option)) == -1)
return -1;
continue;
}
debug ("newstyle negotiation: %s: client requested structured replies",
name_of_nbd_opt (option));
if (no_sr) {
/* Must fail with ERR_UNSUP for qemu 4.2 to remain happy;
* but failing with ERR_POLICY would have been nicer.
*/
if (send_newstyle_option_reply (option, NBD_REP_ERR_UNSUP) == -1)
return -1;
debug ("newstyle negotiation: %s: structured replies are disabled",
name_of_nbd_opt (option));
break;
}
if (conn->structured_replies) {
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID) == -1)
return -1;
debug ("newstyle negotiation: %s: structured replies already in use",
name_of_nbd_opt (option));
break;
}
if (send_newstyle_option_reply (option, NBD_REP_ACK) == -1)
return -1;
conn->structured_replies = true;
break;
case NBD_OPT_LIST_META_CONTEXT:
case NBD_OPT_SET_META_CONTEXT:
{
uint32_t opt_index;
uint32_t exportnamelen;
uint32_t nr_queries;
uint32_t querylen;
const char *what;
if (conn_recv_full (data, optlen, "read: %s: %m", optname) == -1)
return -1;
if (no_mc) {
if (send_newstyle_option_reply (option, NBD_REP_ERR_UNSUP) == -1)
return -1;
continue;
}
/* Note that we support base:allocation whether or not the plugin
* supports can_extents.
*/
if (option == NBD_OPT_SET_META_CONTEXT && !conn->structured_replies) {
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID)
== -1)
return -1;
continue;
}
/* Minimum length of the option payload is:
* 32 bit export name length followed by empty export name
* + 32 bit number of queries followed by no queries
* = 8 bytes.
*/
what = "optlen < 8";
if (optlen < 8) {
opt_meta_invalid_option_len:
debug ("newstyle negotiation: %s: invalid option length: %s",
optname, what);
if (send_newstyle_option_reply (option, NBD_REP_ERR_INVALID)
== -1)
return -1;
continue;
}
memcpy (&exportnamelen, &data[0], 4);
exportnamelen = be32toh (exportnamelen);
what = "validating export name";
if (check_export_name (option, &data[4], exportnamelen,
optlen - 8) == -1)
goto opt_meta_invalid_option_len;
/* Remember the export name: the NBD spec says that if the client
* later uses NBD_OPT_GO on a different export, then the context
* returned here is not usable.
*/
if (option == NBD_OPT_SET_META_CONTEXT) {
conn->exportname_from_set_meta_context =
strndup (&data[4], exportnamelen);
if (conn->exportname_from_set_meta_context == NULL) {
nbdkit_error ("malloc: %m");
return -1;
}
}
opt_index = 4 + exportnamelen;
/* Read the number of queries. */
what = "reading number of queries";
if (opt_index+4 > optlen)
goto opt_meta_invalid_option_len;
memcpy (&nr_queries, &data[opt_index], 4);
nr_queries = be32toh (nr_queries);
opt_index += 4;
/* for LIST: nr_queries == 0 means return all meta contexts
* for SET: nr_queries == 0 means reset all contexts
*/
debug ("newstyle negotiation: %s: %s count: %d", optname,
option == NBD_OPT_LIST_META_CONTEXT ? "query" : "set",
nr_queries);
if (option == NBD_OPT_SET_META_CONTEXT)
conn->meta_context_base_allocation = false;
if (nr_queries == 0) {
if (option == NBD_OPT_LIST_META_CONTEXT) {
if (send_newstyle_option_reply_meta_context (option,
NBD_REP_META_CONTEXT,
0, "base:allocation")
== -1)
return -1;
}
if (send_newstyle_option_reply (option, NBD_REP_ACK) == -1)
return -1;
}
else {
/* Read and answer each query. */
while (nr_queries > 0) {
what = "reading query string length";
if (opt_index+4 > optlen)
goto opt_meta_invalid_option_len;
memcpy (&querylen, &data[opt_index], 4);
querylen = be32toh (querylen);
opt_index += 4;
what = "reading query string";
if (check_string (option, &data[opt_index], querylen,
optlen - opt_index, "meta context query") == -1)
goto opt_meta_invalid_option_len;
debug ("newstyle negotiation: %s: %s %.*s",
optname,
option == NBD_OPT_LIST_META_CONTEXT ? "query" : "set",
(int) querylen, &data[opt_index]);
/* For LIST, "base:" returns all supported contexts in the
* base namespace. We only support "base:allocation".
*/
if (option == NBD_OPT_LIST_META_CONTEXT &&
querylen == 5 &&
strncmp (&data[opt_index], "base:", 5) == 0) {
if (send_newstyle_option_reply_meta_context
(option, NBD_REP_META_CONTEXT,
0, "base:allocation") == -1)
return -1;
}
/* "base:allocation" requested by name. */
else if (querylen == 15 &&
strncmp (&data[opt_index], "base:allocation", 15) == 0) {
if (send_newstyle_option_reply_meta_context
(option, NBD_REP_META_CONTEXT,
option == NBD_OPT_SET_META_CONTEXT
? base_allocation_id : 0,
"base:allocation") == -1)
return -1;
if (option == NBD_OPT_SET_META_CONTEXT)
conn->meta_context_base_allocation = true;
}
/* Every other query must be ignored. */
opt_index += querylen;
nr_queries--;
}
if (send_newstyle_option_reply (option, NBD_REP_ACK) == -1)
return -1;
}
debug ("newstyle negotiation: %s: reply complete", optname);
}
break;
default:
/* Unknown option. */
if (send_newstyle_option_reply (option, NBD_REP_ERR_UNSUP) == -1)
return -1;
if (conn_recv_full (data, optlen,
"reading unknown option data: conn->recv: %m") == -1)
return -1;
}
/* Note, since it's not very clear from the protocol doc, that the
* client must send NBD_OPT_EXPORT_NAME or NBD_OPT_GO last, and
* that ends option negotiation.
*/
if (option == NBD_OPT_EXPORT_NAME || option == NBD_OPT_GO)
break;
}
if (nr_options == 0) {
nbdkit_error ("client spent too much time negotiating without selecting "
"an export");
return -1;
}
/* In --tls=require / FORCEDTLS mode, we must have upgraded to TLS
* by the time we finish option negotiation. If not, give up.
*/
if (tls == 2 && !conn->using_tls) {
nbdkit_error ("non-TLS client tried to connect in --tls=require mode");
return -1;
}
return 0;
}
int
protocol_handshake_newstyle (void)
{
GET_CONN;
struct nbd_new_handshake handshake;
uint16_t gflags;
gflags = (NBD_FLAG_FIXED_NEWSTYLE | NBD_FLAG_NO_ZEROES) & mask_handshake;
debug ("newstyle negotiation: flags: global 0x%x", gflags);
handshake.nbdmagic = htobe64 (NBD_MAGIC);
handshake.version = htobe64 (NBD_NEW_VERSION);
handshake.gflags = htobe16 (gflags);
if (conn->send (&handshake, sizeof handshake, 0) == -1) {
nbdkit_error ("write: %s: %m", "sending newstyle handshake");
return -1;
}
/* Client now sends us its 32 bit flags word ... */
if (conn_recv_full (&conn->cflags, sizeof conn->cflags,
"reading initial client flags: conn->recv: %m") == -1)
return -1;
conn->cflags = be32toh (conn->cflags);
/* ... which we check for accuracy. */
debug ("newstyle negotiation: client flags: 0x%x", conn->cflags);
if (conn->cflags & ~gflags) {
nbdkit_error ("client requested unexpected flags 0x%x", conn->cflags);
return -1;
}
/* Receive newstyle options. */
if (negotiate_handshake_newstyle_options () == -1)
return -1;
return 0;
}
nbdkit-1.42.2/server/public.c 0000644 0001750 0001750 00000070243 14676465664 011522 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* This file contains the public utility APIs to be exported by nbdkit
* for use by filters and plugins, declared in nbdkit-common.h.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#ifdef HAVE_TERMIOS_H
#include
#endif
#ifdef HAVE_SYS_SOCKET_H
#include
#endif
#ifdef HAVE_SYS_UCRED_H
#include
#endif
#ifdef HAVE_SYS_UN_H
#include
#endif
#ifdef WIN32
/* For nanosleep on Windows. */
#include
#endif
#include "array-size.h"
#include "ascii-ctype.h"
#include "ascii-string.h"
#include "get_current_dir_name.h"
#include "getline.h"
#include "human-size.h"
#include "poll.h"
#include "realpath.h"
#include "strndup.h"
#include "internal.h"
#ifndef WIN32
NBDKIT_DLL_PUBLIC char *
nbdkit_absolute_path (const char *path)
{
CLEANUP_FREE char *pwd = NULL;
char *ret;
if (path == NULL || *path == '\0') {
nbdkit_error ("cannot convert null or empty path to an absolute path");
return NULL;
}
if (*path == '/') {
ret = strdup (path);
if (!ret) {
nbdkit_error ("strdup: %m");
return NULL;
}
return ret;
}
pwd = get_current_dir_name ();
if (pwd == NULL) {
nbdkit_error ("get_current_dir_name: %m");
return NULL;
}
if (asprintf (&ret, "%s" DIR_SEPARATOR_STR "%s", pwd, path) == -1) {
nbdkit_error ("asprintf: %m");
return NULL;
}
return ret;
}
#else /* WIN32 */
/* On Windows realpath() is replaced by GetFullPathName which doesn't
* bother to check if the final path exists. Therefore we can simply
* replace nbdkit_absolute_path with nbdkit_realpath and everything
* should work the same.
*/
NBDKIT_DLL_PUBLIC char *
nbdkit_absolute_path (const char *path)
{
return nbdkit_realpath (path);
}
#endif /* WIN32 */
NBDKIT_DLL_PUBLIC char *
nbdkit_realpath (const char *path)
{
char *ret;
if (path == NULL || *path == '\0') {
nbdkit_error ("cannot resolve a null or empty path");
return NULL;
}
ret = realpath (path, NULL);
if (ret == NULL) {
nbdkit_error ("realpath: %s: %m", path);
return NULL;
}
return ret;
}
/* Common code for parsing integers. */
#define PARSE_COMMON_TAIL \
if (errno != 0) { \
nbdkit_error ("%s: could not parse number: \"%s\": %m", \
what, str); \
return -1; \
} \
if (end == str) { \
nbdkit_error ("%s: empty string where we expected a number", \
what); \
return -1; \
} \
if (*end) { \
nbdkit_error ("%s: could not parse number: \"%s\": trailing garbage", \
what, str); \
return -1; \
} \
\
if (rp) \
*rp = r; \
return 0
/* Functions for parsing signed integers. */
NBDKIT_DLL_PUBLIC int
nbdkit_parse_int (const char *what, const char *str, int *rp)
{
long r;
char *end;
errno = 0;
r = strtol (str, &end, 0);
#if INT_MAX != LONG_MAX
if (r < INT_MIN || r > INT_MAX)
errno = ERANGE;
#endif
PARSE_COMMON_TAIL;
}
NBDKIT_DLL_PUBLIC int
nbdkit_parse_int8_t (const char *what, const char *str, int8_t *rp)
{
long r;
char *end;
errno = 0;
r = strtol (str, &end, 0);
if (r < INT8_MIN || r > INT8_MAX)
errno = ERANGE;
PARSE_COMMON_TAIL;
}
NBDKIT_DLL_PUBLIC int
nbdkit_parse_int16_t (const char *what, const char *str, int16_t *rp)
{
long r;
char *end;
errno = 0;
r = strtol (str, &end, 0);
if (r < INT16_MIN || r > INT16_MAX)
errno = ERANGE;
PARSE_COMMON_TAIL;
}
NBDKIT_DLL_PUBLIC int
nbdkit_parse_int32_t (const char *what, const char *str, int32_t *rp)
{
long r;
char *end;
errno = 0;
r = strtol (str, &end, 0);
#if INT32_MAX != LONG_MAX
if (r < INT32_MIN || r > INT32_MAX)
errno = ERANGE;
#endif
PARSE_COMMON_TAIL;
}
NBDKIT_DLL_PUBLIC int
nbdkit_parse_int64_t (const char *what, const char *str, int64_t *rp)
{
long long r;
char *end;
errno = 0;
r = strtoll (str, &end, 0);
#if INT64_MAX != LONGLONG_MAX
if (r < INT64_MIN || r > INT64_MAX)
errno = ERANGE;
#endif
PARSE_COMMON_TAIL;
}
/* Functions for parsing unsigned integers. */
/* strtou* functions have surprising behaviour if the first character
* (after whitespace) is '-', so reject this early.
*/
#define PARSE_ERROR_IF_NEGATIVE \
do { \
while (ascii_isspace (*str)) \
str++; \
if (*str == '-') { \
nbdkit_error ("%s: negative numbers are not allowed", what); \
return -1; \
} \
} while (0)
NBDKIT_DLL_PUBLIC int
nbdkit_parse_unsigned (const char *what, const char *str, unsigned *rp)
{
unsigned long r;
char *end;
PARSE_ERROR_IF_NEGATIVE;
errno = 0;
r = strtoul (str, &end, 0);
#if UINT_MAX != ULONG_MAX
if (r > UINT_MAX)
errno = ERANGE;
#endif
PARSE_COMMON_TAIL;
}
NBDKIT_DLL_PUBLIC int
nbdkit_parse_uint8_t (const char *what, const char *str, uint8_t *rp)
{
unsigned long r;
char *end;
PARSE_ERROR_IF_NEGATIVE;
errno = 0;
r = strtoul (str, &end, 0);
if (r > UINT8_MAX)
errno = ERANGE;
PARSE_COMMON_TAIL;
}
NBDKIT_DLL_PUBLIC int
nbdkit_parse_uint16_t (const char *what, const char *str, uint16_t *rp)
{
unsigned long r;
char *end;
PARSE_ERROR_IF_NEGATIVE;
errno = 0;
r = strtoul (str, &end, 0);
if (r > UINT16_MAX)
errno = ERANGE;
PARSE_COMMON_TAIL;
}
NBDKIT_DLL_PUBLIC int
nbdkit_parse_uint32_t (const char *what, const char *str, uint32_t *rp)
{
unsigned long r;
char *end;
PARSE_ERROR_IF_NEGATIVE;
errno = 0;
r = strtoul (str, &end, 0);
#if UINT32_MAX != ULONG_MAX
if (r > UINT32_MAX)
errno = ERANGE;
#endif
PARSE_COMMON_TAIL;
}
NBDKIT_DLL_PUBLIC int
nbdkit_parse_uint64_t (const char *what, const char *str, uint64_t *rp)
{
unsigned long long r;
char *end;
PARSE_ERROR_IF_NEGATIVE;
errno = 0;
r = strtoull (str, &end, 0);
#if UINT64_MAX != ULONGLONG_MAX
if (r > UINT64_MAX)
errno = ERANGE;
#endif
PARSE_COMMON_TAIL;
}
/* Parse a string as a size with possible scaling suffix, or return -1
* after reporting the error.
*/
NBDKIT_DLL_PUBLIC int64_t
nbdkit_parse_size (const char *str)
{
const char *error = NULL, *pstr = NULL;
int64_t size;
size = human_size_parse (str, &error, &pstr);
if (size == -1) {
nbdkit_error ("%s: %s", error, pstr);
return -1;
}
return size;
}
NBDKIT_DLL_PUBLIC int
nbdkit_parse_probability (const char *what, const char *str,
double *retp)
{
double d, d2;
char c;
int n;
if (sscanf (str, "%lg%[:/]%lg%n", &d, &c, &d2, &n) == 3 &&
strcmp (&str[n], "") == 0) { /* N:M or N/M */
if (d == 0.0 && d2 == 0.0) /* 0/0 is OK */
;
else if (d2 == 0) /* N/0 is bad */
goto bad_parse;
else
d /= d2;
}
else if (sscanf (str, "%lg%n", &d, &n) == 1) {
if (strcmp (&str[n], "%") == 0) /* percentage */
d /= 100.0;
else if (strcmp (&str[n], "") == 0) /* probability */
;
else
goto bad_parse;
}
else
goto bad_parse;
if (!isfinite (d)) /* reject NaN or inf */
goto bad_parse;
if (signbit (d)) /* reject negative numbers */
goto bad_parse;
if (retp)
*retp = d;
return 0;
bad_parse:
nbdkit_error ("%s: could not parse '%s' as a probability", what, str);
return -1;
}
/* Parse a string as a boolean, or return -1 after reporting the error.
*/
NBDKIT_DLL_PUBLIC int
nbdkit_parse_bool (const char *str)
{
if (!strcmp (str, "1") ||
!ascii_strcasecmp (str, "true") ||
!ascii_strcasecmp (str, "t") ||
!ascii_strcasecmp (str, "yes") ||
!ascii_strcasecmp (str, "y") ||
!ascii_strcasecmp (str, "on"))
return 1;
if (!strcmp (str, "0") ||
!ascii_strcasecmp (str, "false") ||
!ascii_strcasecmp (str, "f") ||
!ascii_strcasecmp (str, "no") ||
!ascii_strcasecmp (str, "n") ||
!ascii_strcasecmp (str, "off"))
return 0;
nbdkit_error ("could not decipher boolean (%s)", str);
return -1;
}
/* Parse a delay or sleep. */
NBDKIT_DLL_PUBLIC int
nbdkit_parse_delay (const char *what, const char *str,
unsigned *rsec, unsigned *rnsec)
{
double d;
int n;
if (sscanf (str, "%lg%n", &d, &n) == 1) {
if (strcmp (&str[n], "s") == 0 || strcmp (&str[n], "") == 0) {
/* Seconds. */
}
else if (strcmp (&str[n], "ms") == 0) {
/* Milliseconds. */
d /= 1000;
}
else if (strcmp (&str[n], "us") == 0 || strcmp (&str[n], "μs") == 0) {
/* Microseconds. */
d /= 1000000;
}
else if (strcmp (&str[n], "ns") == 0) {
/* Nanoseconds. */
d /= 1000000000;
}
else
goto bad_parse;
}
else {
bad_parse:
nbdkit_error ("%s: could not parse delay or sleep: \"%s\"",
what, str);
return -1;
}
if (!isfinite (d)) /* reject NaN or inf */
goto bad_parse;
if (signbit (d)) /* reject negative numbers */
goto bad_parse;
if (rsec)
*rsec = d;
if (rnsec)
*rnsec = (d - *rsec) * 1000000000.;
return 0;
}
/* Return true if it is safe to read from stdin during configuration. */
NBDKIT_DLL_PUBLIC int
nbdkit_stdio_safe (void)
{
return !listen_stdin && !configured;
}
/* Read a password from configuration value. */
static int read_password_interactive (char **password);
static int read_password_from_fd (const char *what, int fd, char **password);
NBDKIT_DLL_PUBLIC int
nbdkit_read_password (const char *value, char **password)
{
*password = NULL;
/* Read from stdin interactively. */
if (strcmp (value, "-") == 0) {
if (read_password_interactive (password) == -1)
return -1;
}
/* Read from numbered file descriptor. */
else if (value[0] == '-') {
#ifndef WIN32
int fd;
if (nbdkit_parse_int ("password file descriptor", &value[1], &fd) == -1)
return -1;
if (fd == STDIN_FILENO || fd == STDOUT_FILENO || fd == STDERR_FILENO) {
nbdkit_error ("cannot use password -FD for stdin/stdout/stderr");
return -1;
}
if (read_password_from_fd (&value[1], fd, password) == -1)
return -1;
#else /* WIN32 */
/* As far as I know this will never be possible on Windows, so
* it's a simple error.
*/
nbdkit_error ("not possible to read passwords from file descriptors "
"under Windows");
return -1;
#endif /* WIN32 */
}
/* Read password from a file. */
else if (value[0] == '+') {
int fd;
fd = open (&value[1], O_RDONLY | O_CLOEXEC);
if (fd == -1) {
nbdkit_error ("open %s: %m", &value[1]);
return -1;
}
if (read_password_from_fd (&value[1], fd, password) == -1)
return -1;
}
/* Parameter is the password. */
else {
*password = strdup (value);
if (*password == NULL) {
nbdkit_error ("strdup: %m");
return -1;
}
}
return 0;
}
#ifndef WIN32
typedef struct termios echo_mode;
static void
echo_off (echo_mode *old_mode)
{
struct termios temp;
tcgetattr (STDIN_FILENO, old_mode);
temp = *old_mode;
temp.c_lflag &= ~ECHO;
tcsetattr (STDIN_FILENO, TCSAFLUSH, &temp);
}
static void
echo_restore (const echo_mode *old_mode)
{
tcsetattr (STDIN_FILENO, TCSAFLUSH, old_mode);
}
#else /* WIN32 */
/* Windows implementation of tty echo off based on this:
* https://stackoverflow.com/a/1455007
*/
typedef DWORD echo_mode;
static void
echo_off (echo_mode *old_mode)
{
HANDLE h_stdin;
DWORD mode;
h_stdin = GetStdHandle (STD_INPUT_HANDLE);
GetConsoleMode (h_stdin, old_mode);
mode = *old_mode;
mode &= ~ENABLE_ECHO_INPUT;
SetConsoleMode (h_stdin, mode);
}
static void
echo_restore (const echo_mode *old_mode)
{
HANDLE h_stdin;
h_stdin = GetStdHandle (STD_INPUT_HANDLE);
SetConsoleMode (h_stdin, *old_mode);
}
#endif /* WIN32 */
static int
read_password_interactive (char **password)
{
int err;
echo_mode orig;
ssize_t r;
size_t n;
if (!nbdkit_stdio_safe ()) {
nbdkit_error ("stdin is not available for reading password");
return -1;
}
if (!isatty (STDIN_FILENO)) {
nbdkit_error ("stdin is not a tty, cannot read password interactively");
return -1;
}
printf ("password: ");
/* Set no echo. */
echo_off (&orig);
/* To distinguish between error and EOF we have to check errno.
* getline can return -1 and errno = 0 which means we got end of
* file, which is simply a zero length password.
*/
errno = 0;
r = getline (password, &n, stdin);
err = errno;
/* Restore echo. */
echo_restore (&orig);
/* Complete the printf above. */
printf ("\n");
if (r == -1) {
if (err == 0) { /* EOF, not an error. */
free (*password); /* State of linebuf is undefined. */
*password = strdup ("");
if (*password == NULL) {
nbdkit_error ("strdup: %m");
return -1;
}
}
else {
errno = err;
nbdkit_error ("could not read password from stdin: %m");
return -1;
}
}
if (*password && r > 0 && (*password)[r-1] == '\n')
(*password)[r-1] = '\0';
return 0;
}
static int
read_password_from_fd (const char *what, int fd, char **password)
{
FILE *fp;
size_t n;
ssize_t r;
int err;
fp = fdopen (fd, "r");
if (fp == NULL) {
nbdkit_error ("fdopen %s: %m", what);
close (fd);
return -1;
}
/* To distinguish between error and EOF we have to check errno.
* getline can return -1 and errno = 0 which means we got end of
* file, which is simply a zero length password.
*/
errno = 0;
r = getline (password, &n, fp);
err = errno;
fclose (fp);
if (r == -1) {
if (err == 0) { /* EOF, not an error. */
free (*password); /* State of linebuf is undefined. */
*password = strdup ("");
if (*password == NULL) {
nbdkit_error ("strdup: %m");
return -1;
}
}
else {
errno = err;
nbdkit_error ("could not read password from %s: %m", what);
return -1;
}
}
if (*password && r > 0 && (*password)[r-1] == '\n')
(*password)[r-1] = '\0';
return 0;
}
NBDKIT_DLL_PUBLIC int
nbdkit_nanosleep (unsigned sec, unsigned nsec)
{
struct timespec ts;
if (sec >= INT_MAX - nsec / 1000000000) {
nbdkit_error ("sleep request is too long");
errno = EINVAL;
return -1;
}
ts.tv_sec = sec + nsec / 1000000000;
ts.tv_nsec = nsec % 1000000000;
#if defined HAVE_PPOLL && defined POLLRDHUP
/* End the sleep early if any of these happen:
* - nbdkit has received a signal to shut down the server
* - the current connection is multi-threaded and another thread detects
* NBD_CMD_DISC or a problem with the connection
* - the input socket detects POLLRDHUP/POLLHUP/POLLERR
* - the input socket is invalid (POLLNVAL, probably closed by
* another thread)
*/
struct connection *conn = threadlocal_get_conn ();
struct pollfd fds[] = {
[0].fd = quit_fd,
[0].events = POLLIN,
[1].fd = conn ? conn->status_pipe[0] : -1,
[1].events = POLLIN,
[2].fd = conn ? conn->sockin : -1,
[2].events = POLLRDHUP,
};
sigset_t all;
/* Block all signals to this thread during the poll, so we don't
* have to worry about EINTR
*/
if (sigfillset (&all))
abort ();
switch (ppoll (fds, ARRAY_SIZE (fds), &ts, &all)) {
case -1:
assert (errno != EINTR);
nbdkit_error ("poll: %m");
return -1;
case 0:
return 0;
}
/* We don't have to read the pipe-to-self; if poll returned an
* event, we know the connection should be shutting down.
*/
bool has_quit = quit;
assert (has_quit ||
(conn && conn->nworkers > 0 &&
connection_get_status () < STATUS_SHUTDOWN) ||
(conn && (fds[2].revents & (POLLRDHUP | POLLHUP | POLLERR |
POLLNVAL))));
if (has_quit)
nbdkit_error ("aborting sleep because of server shut down");
else
nbdkit_error ("aborting sleep because of connection close or error");
errno = ESHUTDOWN;
return -1;
#else
/* The fallback path simply calls ordinary nanosleep, and will
* cause long delays on server shutdown.
*
* If however you want to port this to your platform, then
* porting ideas, in order of preference:
* - POSIX requires pselect; it's a bit clunkier to set up than poll,
* but the same ability to atomically mask all signals and operate
* on struct timespec makes it similar to the preferred ppoll interface
* - calculate an end time target, then use poll in a loop on EINTR with
* a recalculation of the timeout to still reach the end time (masking
* signals in that case is not safe, as it is a non-atomic race)
*/
int r;
r = nanosleep (&ts, NULL);
if (r == -1 && errno != EINTR && errno != EAGAIN) {
nbdkit_error ("nanosleep: %m");
return -1;
}
return 0;
#endif
}
/* This function will be deprecated for API V3 users. The preferred
* approach will be to get the exportname from .open().
*/
NBDKIT_DLL_PUBLIC const char *
nbdkit_export_name (void)
{
struct context *c = threadlocal_get_context ();
if (!c || !c->conn) {
nbdkit_error ("no connection in this thread");
return NULL;
}
return c->conn->exportname;
}
/* This function will be deprecated for API V3 users. The preferred
* approach will be to get the tls mode from .open().
*/
NBDKIT_DLL_PUBLIC int
nbdkit_is_tls (void)
{
struct context *c = threadlocal_get_context ();
if (!c) {
nbdkit_error ("no connection in this thread");
return -1;
}
if (!c->conn) {
/* If a filter opened this backend outside of a client connection,
* then we can only claim tls when the command line required it.
*/
return tls == 2;
}
return c->conn->using_tls;
}
NBDKIT_DLL_PUBLIC int
nbdkit_peer_name (struct sockaddr *addr, socklen_t *addrlen)
{
struct connection *conn = threadlocal_get_conn ();
int s;
if (!conn) {
nbdkit_error ("no connection in this thread");
return -1;
}
s = conn->sockin;
if (s == -1) {
nbdkit_error ("socket not open");
return -1;
}
if (getpeername (s, addr, addrlen) == -1) {
nbdkit_error ("peername: %m");
return -1;
}
return 0;
}
#if defined (SO_PEERCRED) && \
(defined (HAVE_STRUCT_UCRED_UID) || defined (HAVE_STRUCT_SOCKPEERCRED_UID))
#define GET_PEERCRED_DEFINED 1
static int
get_peercred (int s, int64_t *pid, int64_t *uid, int64_t *gid)
{
#if HAVE_STRUCT_UCRED_UID
struct ucred cred;
#elif HAVE_STRUCT_SOCKPEERCRED_UID
/* The struct has a different name on OpenBSD, but the same members. */
struct sockpeercred cred;
#endif
socklen_t n = sizeof cred;
if (getsockopt (s, SOL_SOCKET, SO_PEERCRED, &cred, &n) == -1) {
nbdkit_error ("getsockopt: SO_PEERCRED: %m");
return -1;
}
if (pid && cred.pid >= 1) {
#if SIZEOF_PID_T >= 8
if (cred.pid > INT64_MAX)
nbdkit_error ("pid out of range: cannot be mapped to int64_t");
else
#endif
*pid = cred.pid;
}
if (uid && cred.uid >= 0) {
#if SIZEOF_UID_T >= 8
if (cred.uid > INT64_MAX)
nbdkit_error ("uid out of range: cannot be mapped to int64_t");
else
#endif
*uid = cred.uid;
}
if (gid && cred.gid >= 0) {
#if SIZEOF_GID_T >= 8
if (cred.gid > INT64_MAX)
nbdkit_error ("gid out of range: cannot be mapped to int64_t");
else
#endif
*gid = cred.gid;
}
return 0;
}
#endif /* SO_PEERCRED */
#ifdef LOCAL_PEERCRED
#define GET_PEERCRED_DEFINED 1
/* FreeBSD supports LOCAL_PEERCRED and struct xucred. */
static int
get_peercred (int s, int64_t *pid, int64_t *uid, int64_t *gid)
{
struct xucred xucred;
socklen_t n = sizeof xucred;
if (getsockopt (s, 0, LOCAL_PEERCRED, &xucred, &n) == -1) {
nbdkit_error ("getsockopt: LOCAL_PEERCRED: %m");
return -1;
}
if (xucred.cr_version != XUCRED_VERSION) {
nbdkit_error ("getsockopt: LOCAL_PEERCRED: "
"struct xucred version (%u) "
"did not match expected version (%u)",
xucred.cr_version, XUCRED_VERSION);
return -1;
}
if (n != sizeof xucred) {
nbdkit_error ("getsockopt: LOCAL_PEERCRED: did not return full struct");
return -1;
}
if (pid)
nbdkit_error ("nbdkit_peer_pid is not supported on this platform");
if (uid && xucred.cr_uid >= 0) {
#if SIZEOF_UID_T >= 8
if (xucred.cr_uid <= INT64_MAX)
#endif
*uid = xucred.cr_uid;
#if SIZEOF_UID_T >= 8
else
nbdkit_error ("uid out of range: cannot be mapped to int64_t");
#endif
}
if (gid && xucred.cr_ngroups > 0) {
#if SIZEOF_GID_T >= 8
if (xucred.cr_gid <= INT64_MAX)
#endif
*gid = xucred.cr_gid;
#if SIZEOF_GID_T >= 8
else
nbdkit_error ("gid out of range: cannot be mapped to int64_t");
#endif
}
return 0;
}
#endif /* LOCAL_PEERCRED */
#ifndef GET_PEERCRED_DEFINED
static int
get_peercred (int s, int64_t *pid, int64_t *uid, int64_t *gid)
{
nbdkit_error ("nbdkit_peer_pid, nbdkit_peer_uid and nbdkit_peer_gid "
"are not supported on this platform");
return -1;
}
#endif
static int
get_peercred_common (int64_t *pid, int64_t *uid, int64_t *gid)
{
struct connection *conn = threadlocal_get_conn ();
int s;
if (pid) *pid = -1;
if (uid) *uid = -1;
if (gid) *gid = -1;
if (!conn) {
nbdkit_error ("no connection in this thread");
return -1;
}
s = conn->sockin;
if (s == -1) {
nbdkit_error ("socket not open");
return -1;
}
return get_peercred (s, pid, uid, gid);
}
NBDKIT_DLL_PUBLIC int64_t
nbdkit_peer_pid (void)
{
int64_t pid;
if (get_peercred_common (&pid, NULL, NULL) == -1)
return -1;
return pid;
}
NBDKIT_DLL_PUBLIC int64_t
nbdkit_peer_uid (void)
{
int64_t uid;
if (get_peercred_common (NULL, &uid, NULL) == -1)
return -1;
return uid;
}
NBDKIT_DLL_PUBLIC int64_t
nbdkit_peer_gid (void)
{
int64_t gid;
if (get_peercred_common (NULL, NULL, &gid) == -1)
return -1;
return gid;
}
#ifdef SO_PEERSEC
NBDKIT_DLL_PUBLIC char *
nbdkit_peer_security_context (void)
{
struct connection *conn = threadlocal_get_conn ();
int s;
char *label = NULL;
socklen_t optlen = 0;
int r;
if (!conn) {
nbdkit_error ("no connection in this thread");
return NULL;
}
s = conn->sockin;
if (s == -1) {
nbdkit_error ("socket not open");
return NULL;
}
/* Get the length of the label before allocating. Note the ip(7)
* manual implies that the level should be IPPROTO_IP for AF_INET
* sockets. However Linux always uses SOL_SOCKET.
*/
errno = 0;
r = getsockopt (conn->sockin, SOL_SOCKET, SO_PEERSEC, label, &optlen);
if (r == 0) {
/* Zero-length label probably. */
label = calloc (1, 1);
if (label == NULL) {
nbdkit_error ("calloc: %m");
return NULL;
}
return label; /* caller frees */
}
else if (r == -1 && errno == ENOPROTOOPT) {
/* This is not really an error so don't call nbdkit_error. */
nbdkit_debug ("getsockopt: SO_PEERSEC: %m");
return NULL;
}
else if (r == -1 && errno != ERANGE) {
nbdkit_error ("getsockopt: SO_PEERSEC: %m");
return NULL;
}
/* It's not defined if Linux will NUL-terminate the returned string,
* or even if it will completely fill the buffer, so we play it safe
* here.
*/
label = calloc (optlen+1, 1);
if (label == NULL) {
nbdkit_error ("calloc: %m");
return NULL;
}
/* Read the label. */
if (getsockopt (conn->sockin, SOL_SOCKET, SO_PEERSEC, label, &optlen) == -1) {
nbdkit_error ("getsockopt: SO_PEERSEC: %m");
free (label);
return NULL;
}
return label; /* caller frees */
}
#else /* !SO_PEERSEC */
NBDKIT_DLL_PUBLIC char *
nbdkit_peer_security_context (void)
{
nbdkit_error ("SO_PEERSEC is not available on this platform");
return NULL;
}
#endif /* !SO_PEERSEC */
/* Functions for manipulating intern'd strings. */
static string_vector global_interns;
void
free_interns (void)
{
struct connection *conn = threadlocal_get_conn ();
string_vector *list = conn ? &conn->interns : &global_interns;
string_vector_empty (list);
}
static const char *
add_intern (char *str)
{
struct context *c = threadlocal_get_context ();
struct connection *conn = c ? c->conn : NULL;
string_vector *list = conn ? &conn->interns : &global_interns;
if (string_vector_append (list, str) == -1) {
nbdkit_error ("malloc: %m");
free (str);
return NULL;
}
return str;
}
NBDKIT_DLL_PUBLIC const char *
nbdkit_strndup_intern (const char *str, size_t n)
{
char *copy;
if (str == NULL) {
nbdkit_error ("nbdkit_strndup_intern: no string given");
errno = EINVAL;
return NULL;
}
copy = strndup (str, n);
if (copy == NULL) {
nbdkit_error ("strndup: %m");
return NULL;
}
return add_intern (copy);
}
NBDKIT_DLL_PUBLIC const char *
nbdkit_strdup_intern (const char *str)
{
char *copy;
if (str == NULL) {
nbdkit_error ("nbdkit_strdup_intern: no string given");
errno = EINVAL;
return NULL;
}
copy = strdup (str);
if (copy == NULL) {
nbdkit_error ("strdup: %m");
return NULL;
}
return add_intern (copy);
}
NBDKIT_DLL_PUBLIC const char *
nbdkit_vprintf_intern (const char *fmt, va_list ap)
{
char *str = NULL;
if (vasprintf (&str, fmt, ap) == -1) {
nbdkit_error ("asprintf: %m");
return NULL;
}
return add_intern (str);
}
NBDKIT_DLL_PUBLIC const char *
nbdkit_printf_intern (const char *fmt, ...)
{
va_list ap;
const char *ret;
va_start (ap, fmt);
ret = nbdkit_vprintf_intern (fmt, ap);
va_end (ap);
return ret;
}
NBDKIT_DLL_PUBLIC void
nbdkit_disconnect (int force)
{
struct connection *conn = threadlocal_get_conn ();
if (!conn) {
debug ("no connection in this thread, ignoring disconnect request");
return;
}
if (connection_set_status (force ? STATUS_DEAD : STATUS_SHUTDOWN)) {
ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
conn->close (SHUT_WR);
}
}
nbdkit-1.42.2/server/quit.c 0000644 0001750 0001750 00000007327 14676465664 011231 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include "internal.h"
#include "utils.h"
/* Detection of request to exit via signal. Most places in the code
* can just poll quit at opportune moments, while sockets.c needs a
* pipe-to-self through quit_fd in order to break a poll loop without
* a race.
*/
volatile int quit;
#ifndef WIN32
int quit_fd;
static int write_quit_fd;
#else
HANDLE quit_fd;
#endif
#ifndef WIN32
void
set_up_quit_pipe (void)
{
int fds[2];
#ifdef HAVE_PIPE2
if (pipe2 (fds, O_CLOEXEC) < 0) {
perror ("pipe2");
exit (EXIT_FAILURE);
}
#else
/* This is called early enough that no other thread will be
* fork()ing while we create this; but we must set CLOEXEC so that
* the fds don't leak into children.
*/
if (pipe (fds) < 0) {
perror ("pipe");
exit (EXIT_FAILURE);
}
if (set_cloexec (fds[0]) == -1 ||
set_cloexec (fds[1]) == -1) {
perror ("fcntl");
exit (EXIT_FAILURE);
}
#endif
quit_fd = fds[0];
write_quit_fd = fds[1];
}
void
close_quit_pipe (void)
{
close (quit_fd);
close (write_quit_fd);
}
/* The pragma here is for the write() call in set_quit below. RHEL
* 6-era gcc requires pragmas outside the function scope.
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-result"
/* This function is called from signal handlers and MUST NOT do
* anything asynch-signal unsafe (malloc, printf, debug etc.) as that
* can be turned into an RCE. Example:
* https://www.qualys.com/2024/07/01/cve-2024-6387/regresshion.txt
* See also: signal-safety(7)
*/
static void
set_quit (void)
{
char c = 0;
quit = 1;
write (write_quit_fd, &c, 1);
}
#pragma GCC diagnostic pop
#else /* WIN32 */
/* Pipes don't work well with WaitForMultipleObjectsEx in Windows. In
* any case, an Event is a better match with what we are trying to do
* here.
*/
void
set_up_quit_pipe (void)
{
quit_fd = CreateEvent (NULL, FALSE, FALSE, NULL);
}
void
close_quit_pipe (void)
{
CloseHandle (quit_fd);
}
void
set_quit (void)
{
quit = 1;
SetEvent (quit_fd);
}
#endif /* WIN32 */
void
handle_quit (int sig)
{
set_quit ();
}
NBDKIT_DLL_PUBLIC void
nbdkit_shutdown (void)
{
set_quit ();
}
nbdkit-1.42.2/server/signals.c 0000644 0001750 0001750 00000004262 14534316443 011661 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include "internal.h"
#ifndef WIN32
/* Set up signal handlers. */
void
set_up_signals (void)
{
struct sigaction sa;
memset (&sa, 0, sizeof sa);
sa.sa_flags = SA_RESTART;
sa.sa_handler = handle_quit;
sigaction (SIGINT, &sa, NULL);
sigaction (SIGQUIT, &sa, NULL);
sigaction (SIGTERM, &sa, NULL);
sigaction (SIGHUP, &sa, NULL);
memset (&sa, 0, sizeof sa);
sa.sa_flags = SA_RESTART;
sa.sa_handler = SIG_IGN;
sigaction (SIGPIPE, &sa, NULL);
}
#else /* WIN32 */
void
set_up_signals (void)
{
signal (SIGINT, handle_quit);
signal (SIGTERM, handle_quit);
}
#endif /* WIN32 */
nbdkit-1.42.2/server/socket-activation.c 0000644 0001750 0001750 00000007042 14534316443 013647 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include "internal.h"
#ifndef WIN32
/* Handle socket activation. This is controlled through special
* environment variables inherited by nbdkit. Returns 0 if no socket
* activation. Otherwise returns the number of FDs. See also
* virGetListenFDs in libvirt.org:src/util/virutil.c
*/
unsigned int
get_socket_activation (void)
{
const char *s;
unsigned int pid;
unsigned int nr_fds;
unsigned int i;
int fd;
int f;
s = getenv ("LISTEN_PID");
if (s == NULL)
return 0;
if (nbdkit_parse_unsigned ("LISTEN_PID", s, &pid) == -1)
return 0;
if (pid != getpid ()) {
fprintf (stderr, "%s: %s was not for us (ignored)\n",
program_name, "LISTEN_PID");
return 0;
}
s = getenv ("LISTEN_FDS");
if (s == NULL)
return 0;
if (nbdkit_parse_unsigned ("LISTEN_FDS", s, &nr_fds) == -1)
return 0;
/* Limit the number of fds that may be passed in to something
* reasonable.
*/
if (nr_fds == 0 || nr_fds > 16) {
fprintf (stderr, "%s: socket activation: LISTEN_FDS=%s out of range\n",
program_name, s);
exit (EXIT_FAILURE);
}
/* So these are not passed to any child processes we might start. */
unsetenv ("LISTEN_FDS");
unsetenv ("LISTEN_PID");
/* So the file descriptors don't leak into child processes. */
for (i = 0; i < nr_fds; ++i) {
fd = FIRST_SOCKET_ACTIVATION_FD + i;
f = fcntl (fd, F_GETFD);
if (f == -1 || fcntl (fd, F_SETFD, f | FD_CLOEXEC) == -1) {
/* If we cannot set FD_CLOEXEC then it probably means the file
* descriptor is invalid, so socket activation has gone wrong
* and we should exit.
*/
fprintf (stderr, "%s: socket activation: "
"invalid file descriptor fd = %d: %s\n",
program_name, fd, strerror (errno));
exit (EXIT_FAILURE);
}
}
return nr_fds;
}
#else /* WIN32 */
unsigned int
get_socket_activation (void)
{
return 0;
}
#endif /* WIN32 */
nbdkit-1.42.2/server/sockets.c 0000644 0001750 0001750 00000036145 14676465664 011722 /* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include