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added cloexec module

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This commit is contained in:
Nikos Mavrogiannopoulos
2013-02-04 21:20:09 +01:00
parent f5507a7161
commit 734a6911a9
33 changed files with 4665 additions and 2 deletions
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306
gl/Makefile.am
View File

@@ -21,7 +21,7 @@
# the same distribution terms as the rest of that program.
#
# Generated by gnulib-tool.
# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --tests-base=gl/tests --aux-dir=build-aux --no-conditional-dependencies --no-libtool --macro-prefix=gl gettime hash-pjw-bare memmem
# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --tests-base=gl/tests --aux-dir=build-aux --no-conditional-dependencies --no-libtool --macro-prefix=gl cloexec gettime hash-pjw-bare memmem
AUTOMAKE_OPTIONS = 1.5 gnits
@@ -49,6 +49,93 @@ libgnu_a_LIBADD = $(gl_LIBOBJS)
libgnu_a_DEPENDENCIES = $(gl_LIBOBJS)
EXTRA_libgnu_a_SOURCES =
## begin gnulib module cloexec
libgnu_a_SOURCES += cloexec.c
EXTRA_DIST += cloexec.h
## end gnulib module cloexec
## begin gnulib module close
EXTRA_DIST += close.c
EXTRA_libgnu_a_SOURCES += close.c
## end gnulib module close
## begin gnulib module dup2
EXTRA_DIST += dup2.c
EXTRA_libgnu_a_SOURCES += dup2.c
## end gnulib module dup2
## begin gnulib module fcntl
EXTRA_DIST += fcntl.c
EXTRA_libgnu_a_SOURCES += fcntl.c
## end gnulib module fcntl
## begin gnulib module fcntl-h
BUILT_SOURCES += fcntl.h
# We need the following in order to create <fcntl.h> when the system
# doesn't have one that works with the given compiler.
fcntl.h: fcntl.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
$(AM_V_GEN)rm -f $@-t $@ && \
{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-e 's|@''NEXT_FCNTL_H''@|$(NEXT_FCNTL_H)|g' \
-e 's/@''GNULIB_FCNTL''@/$(GNULIB_FCNTL)/g' \
-e 's/@''GNULIB_NONBLOCKING''@/$(GNULIB_NONBLOCKING)/g' \
-e 's/@''GNULIB_OPEN''@/$(GNULIB_OPEN)/g' \
-e 's/@''GNULIB_OPENAT''@/$(GNULIB_OPENAT)/g' \
-e 's|@''HAVE_FCNTL''@|$(HAVE_FCNTL)|g' \
-e 's|@''HAVE_OPENAT''@|$(HAVE_OPENAT)|g' \
-e 's|@''REPLACE_FCNTL''@|$(REPLACE_FCNTL)|g' \
-e 's|@''REPLACE_OPEN''@|$(REPLACE_OPEN)|g' \
-e 's|@''REPLACE_OPENAT''@|$(REPLACE_OPENAT)|g' \
-e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
-e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \
< $(srcdir)/fcntl.in.h; \
} > $@-t && \
mv $@-t $@
MOSTLYCLEANFILES += fcntl.h fcntl.h-t
EXTRA_DIST += fcntl.in.h
## end gnulib module fcntl-h
## begin gnulib module fd-hook
libgnu_a_SOURCES += fd-hook.c
EXTRA_DIST += fd-hook.h
## end gnulib module fd-hook
## begin gnulib module getdtablesize
EXTRA_DIST += getdtablesize.c
EXTRA_libgnu_a_SOURCES += getdtablesize.c
## end gnulib module getdtablesize
## begin gnulib module gettime
libgnu_a_SOURCES += gettime.c
@@ -88,6 +175,24 @@ EXTRA_libgnu_a_SOURCES += memmem.c
## end gnulib module memmem-simple
## begin gnulib module msvc-inval
EXTRA_DIST += msvc-inval.c msvc-inval.h
EXTRA_libgnu_a_SOURCES += msvc-inval.c
## end gnulib module msvc-inval
## begin gnulib module msvc-nothrow
EXTRA_DIST += msvc-nothrow.c msvc-nothrow.h
EXTRA_libgnu_a_SOURCES += msvc-nothrow.c
## end gnulib module msvc-nothrow
## begin gnulib module snippet/arg-nonnull
# The BUILT_SOURCES created by this Makefile snippet are not used via #include
@@ -157,6 +262,29 @@ EXTRA_DIST += $(top_srcdir)/build-aux/snippet/warn-on-use.h
## end gnulib module snippet/warn-on-use
## begin gnulib module stdbool
BUILT_SOURCES += $(STDBOOL_H)
# We need the following in order to create <stdbool.h> when the system
# doesn't have one that works.
if GL_GENERATE_STDBOOL_H
stdbool.h: stdbool.in.h $(top_builddir)/config.status
$(AM_V_GEN)rm -f $@-t $@ && \
{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool.in.h; \
} > $@-t && \
mv $@-t $@
else
stdbool.h: $(top_builddir)/config.status
rm -f $@
endif
MOSTLYCLEANFILES += stdbool.h stdbool.h-t
EXTRA_DIST += stdbool.in.h
## end gnulib module stdbool
## begin gnulib module stddef
BUILT_SOURCES += $(STDDEF_H)
@@ -371,6 +499,31 @@ EXTRA_DIST += sys_time.in.h
## end gnulib module sys_time
## begin gnulib module sys_types
BUILT_SOURCES += sys/types.h
# We need the following in order to create <sys/types.h> when the system
# doesn't have one that works with the given compiler.
sys/types.h: sys_types.in.h $(top_builddir)/config.status
$(AM_V_at)$(MKDIR_P) sys
$(AM_V_GEN)rm -f $@-t $@ && \
{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-e 's|@''NEXT_SYS_TYPES_H''@|$(NEXT_SYS_TYPES_H)|g' \
-e 's|@''WINDOWS_64_BIT_OFF_T''@|$(WINDOWS_64_BIT_OFF_T)|g' \
< $(srcdir)/sys_types.in.h; \
} > $@-t && \
mv $@-t $@
MOSTLYCLEANFILES += sys/types.h sys/types.h-t
EXTRA_DIST += sys_types.in.h
## end gnulib module sys_types
## begin gnulib module time
BUILT_SOURCES += time.h
@@ -421,6 +574,157 @@ EXTRA_DIST += timespec.h
## end gnulib module timespec
## begin gnulib module unistd
BUILT_SOURCES += unistd.h
libgnu_a_SOURCES += unistd.c
# We need the following in order to create an empty placeholder for
# <unistd.h> when the system doesn't have one.
unistd.h: unistd.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
$(AM_V_GEN)rm -f $@-t $@ && \
{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-e 's|@''HAVE_UNISTD_H''@|$(HAVE_UNISTD_H)|g' \
-e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-e 's|@''NEXT_UNISTD_H''@|$(NEXT_UNISTD_H)|g' \
-e 's|@''WINDOWS_64_BIT_OFF_T''@|$(WINDOWS_64_BIT_OFF_T)|g' \
-e 's/@''GNULIB_CHDIR''@/$(GNULIB_CHDIR)/g' \
-e 's/@''GNULIB_CHOWN''@/$(GNULIB_CHOWN)/g' \
-e 's/@''GNULIB_CLOSE''@/$(GNULIB_CLOSE)/g' \
-e 's/@''GNULIB_DUP''@/$(GNULIB_DUP)/g' \
-e 's/@''GNULIB_DUP2''@/$(GNULIB_DUP2)/g' \
-e 's/@''GNULIB_DUP3''@/$(GNULIB_DUP3)/g' \
-e 's/@''GNULIB_ENVIRON''@/$(GNULIB_ENVIRON)/g' \
-e 's/@''GNULIB_EUIDACCESS''@/$(GNULIB_EUIDACCESS)/g' \
-e 's/@''GNULIB_FACCESSAT''@/$(GNULIB_FACCESSAT)/g' \
-e 's/@''GNULIB_FCHDIR''@/$(GNULIB_FCHDIR)/g' \
-e 's/@''GNULIB_FCHOWNAT''@/$(GNULIB_FCHOWNAT)/g' \
-e 's/@''GNULIB_FDATASYNC''@/$(GNULIB_FDATASYNC)/g' \
-e 's/@''GNULIB_FSYNC''@/$(GNULIB_FSYNC)/g' \
-e 's/@''GNULIB_FTRUNCATE''@/$(GNULIB_FTRUNCATE)/g' \
-e 's/@''GNULIB_GETCWD''@/$(GNULIB_GETCWD)/g' \
-e 's/@''GNULIB_GETDOMAINNAME''@/$(GNULIB_GETDOMAINNAME)/g' \
-e 's/@''GNULIB_GETDTABLESIZE''@/$(GNULIB_GETDTABLESIZE)/g' \
-e 's/@''GNULIB_GETGROUPS''@/$(GNULIB_GETGROUPS)/g' \
-e 's/@''GNULIB_GETHOSTNAME''@/$(GNULIB_GETHOSTNAME)/g' \
-e 's/@''GNULIB_GETLOGIN''@/$(GNULIB_GETLOGIN)/g' \
-e 's/@''GNULIB_GETLOGIN_R''@/$(GNULIB_GETLOGIN_R)/g' \
-e 's/@''GNULIB_GETPAGESIZE''@/$(GNULIB_GETPAGESIZE)/g' \
-e 's/@''GNULIB_GETUSERSHELL''@/$(GNULIB_GETUSERSHELL)/g' \
-e 's/@''GNULIB_GROUP_MEMBER''@/$(GNULIB_GROUP_MEMBER)/g' \
-e 's/@''GNULIB_ISATTY''@/$(GNULIB_ISATTY)/g' \
-e 's/@''GNULIB_LCHOWN''@/$(GNULIB_LCHOWN)/g' \
-e 's/@''GNULIB_LINK''@/$(GNULIB_LINK)/g' \
-e 's/@''GNULIB_LINKAT''@/$(GNULIB_LINKAT)/g' \
-e 's/@''GNULIB_LSEEK''@/$(GNULIB_LSEEK)/g' \
-e 's/@''GNULIB_PIPE''@/$(GNULIB_PIPE)/g' \
-e 's/@''GNULIB_PIPE2''@/$(GNULIB_PIPE2)/g' \
-e 's/@''GNULIB_PREAD''@/$(GNULIB_PREAD)/g' \
-e 's/@''GNULIB_PWRITE''@/$(GNULIB_PWRITE)/g' \
-e 's/@''GNULIB_READ''@/$(GNULIB_READ)/g' \
-e 's/@''GNULIB_READLINK''@/$(GNULIB_READLINK)/g' \
-e 's/@''GNULIB_READLINKAT''@/$(GNULIB_READLINKAT)/g' \
-e 's/@''GNULIB_RMDIR''@/$(GNULIB_RMDIR)/g' \
-e 's/@''GNULIB_SETHOSTNAME''@/$(GNULIB_SETHOSTNAME)/g' \
-e 's/@''GNULIB_SLEEP''@/$(GNULIB_SLEEP)/g' \
-e 's/@''GNULIB_SYMLINK''@/$(GNULIB_SYMLINK)/g' \
-e 's/@''GNULIB_SYMLINKAT''@/$(GNULIB_SYMLINKAT)/g' \
-e 's/@''GNULIB_TTYNAME_R''@/$(GNULIB_TTYNAME_R)/g' \
-e 's/@''GNULIB_UNISTD_H_GETOPT''@/0$(GNULIB_GL_UNISTD_H_GETOPT)/g' \
-e 's/@''GNULIB_UNISTD_H_NONBLOCKING''@/$(GNULIB_UNISTD_H_NONBLOCKING)/g' \
-e 's/@''GNULIB_UNISTD_H_SIGPIPE''@/$(GNULIB_UNISTD_H_SIGPIPE)/g' \
-e 's/@''GNULIB_UNLINK''@/$(GNULIB_UNLINK)/g' \
-e 's/@''GNULIB_UNLINKAT''@/$(GNULIB_UNLINKAT)/g' \
-e 's/@''GNULIB_USLEEP''@/$(GNULIB_USLEEP)/g' \
-e 's/@''GNULIB_WRITE''@/$(GNULIB_WRITE)/g' \
< $(srcdir)/unistd.in.h | \
sed -e 's|@''HAVE_CHOWN''@|$(HAVE_CHOWN)|g' \
-e 's|@''HAVE_DUP2''@|$(HAVE_DUP2)|g' \
-e 's|@''HAVE_DUP3''@|$(HAVE_DUP3)|g' \
-e 's|@''HAVE_EUIDACCESS''@|$(HAVE_EUIDACCESS)|g' \
-e 's|@''HAVE_FACCESSAT''@|$(HAVE_FACCESSAT)|g' \
-e 's|@''HAVE_FCHDIR''@|$(HAVE_FCHDIR)|g' \
-e 's|@''HAVE_FCHOWNAT''@|$(HAVE_FCHOWNAT)|g' \
-e 's|@''HAVE_FDATASYNC''@|$(HAVE_FDATASYNC)|g' \
-e 's|@''HAVE_FSYNC''@|$(HAVE_FSYNC)|g' \
-e 's|@''HAVE_FTRUNCATE''@|$(HAVE_FTRUNCATE)|g' \
-e 's|@''HAVE_GETDTABLESIZE''@|$(HAVE_GETDTABLESIZE)|g' \
-e 's|@''HAVE_GETGROUPS''@|$(HAVE_GETGROUPS)|g' \
-e 's|@''HAVE_GETHOSTNAME''@|$(HAVE_GETHOSTNAME)|g' \
-e 's|@''HAVE_GETLOGIN''@|$(HAVE_GETLOGIN)|g' \
-e 's|@''HAVE_GETPAGESIZE''@|$(HAVE_GETPAGESIZE)|g' \
-e 's|@''HAVE_GROUP_MEMBER''@|$(HAVE_GROUP_MEMBER)|g' \
-e 's|@''HAVE_LCHOWN''@|$(HAVE_LCHOWN)|g' \
-e 's|@''HAVE_LINK''@|$(HAVE_LINK)|g' \
-e 's|@''HAVE_LINKAT''@|$(HAVE_LINKAT)|g' \
-e 's|@''HAVE_PIPE''@|$(HAVE_PIPE)|g' \
-e 's|@''HAVE_PIPE2''@|$(HAVE_PIPE2)|g' \
-e 's|@''HAVE_PREAD''@|$(HAVE_PREAD)|g' \
-e 's|@''HAVE_PWRITE''@|$(HAVE_PWRITE)|g' \
-e 's|@''HAVE_READLINK''@|$(HAVE_READLINK)|g' \
-e 's|@''HAVE_READLINKAT''@|$(HAVE_READLINKAT)|g' \
-e 's|@''HAVE_SETHOSTNAME''@|$(HAVE_SETHOSTNAME)|g' \
-e 's|@''HAVE_SLEEP''@|$(HAVE_SLEEP)|g' \
-e 's|@''HAVE_SYMLINK''@|$(HAVE_SYMLINK)|g' \
-e 's|@''HAVE_SYMLINKAT''@|$(HAVE_SYMLINKAT)|g' \
-e 's|@''HAVE_UNLINKAT''@|$(HAVE_UNLINKAT)|g' \
-e 's|@''HAVE_USLEEP''@|$(HAVE_USLEEP)|g' \
-e 's|@''HAVE_DECL_ENVIRON''@|$(HAVE_DECL_ENVIRON)|g' \
-e 's|@''HAVE_DECL_FCHDIR''@|$(HAVE_DECL_FCHDIR)|g' \
-e 's|@''HAVE_DECL_FDATASYNC''@|$(HAVE_DECL_FDATASYNC)|g' \
-e 's|@''HAVE_DECL_GETDOMAINNAME''@|$(HAVE_DECL_GETDOMAINNAME)|g' \
-e 's|@''HAVE_DECL_GETLOGIN_R''@|$(HAVE_DECL_GETLOGIN_R)|g' \
-e 's|@''HAVE_DECL_GETPAGESIZE''@|$(HAVE_DECL_GETPAGESIZE)|g' \
-e 's|@''HAVE_DECL_GETUSERSHELL''@|$(HAVE_DECL_GETUSERSHELL)|g' \
-e 's|@''HAVE_DECL_SETHOSTNAME''@|$(HAVE_DECL_SETHOSTNAME)|g' \
-e 's|@''HAVE_DECL_TTYNAME_R''@|$(HAVE_DECL_TTYNAME_R)|g' \
-e 's|@''HAVE_OS_H''@|$(HAVE_OS_H)|g' \
-e 's|@''HAVE_SYS_PARAM_H''@|$(HAVE_SYS_PARAM_H)|g' \
| \
sed -e 's|@''REPLACE_CHOWN''@|$(REPLACE_CHOWN)|g' \
-e 's|@''REPLACE_CLOSE''@|$(REPLACE_CLOSE)|g' \
-e 's|@''REPLACE_DUP''@|$(REPLACE_DUP)|g' \
-e 's|@''REPLACE_DUP2''@|$(REPLACE_DUP2)|g' \
-e 's|@''REPLACE_FCHOWNAT''@|$(REPLACE_FCHOWNAT)|g' \
-e 's|@''REPLACE_FTRUNCATE''@|$(REPLACE_FTRUNCATE)|g' \
-e 's|@''REPLACE_GETCWD''@|$(REPLACE_GETCWD)|g' \
-e 's|@''REPLACE_GETDOMAINNAME''@|$(REPLACE_GETDOMAINNAME)|g' \
-e 's|@''REPLACE_GETLOGIN_R''@|$(REPLACE_GETLOGIN_R)|g' \
-e 's|@''REPLACE_GETGROUPS''@|$(REPLACE_GETGROUPS)|g' \
-e 's|@''REPLACE_GETPAGESIZE''@|$(REPLACE_GETPAGESIZE)|g' \
-e 's|@''REPLACE_ISATTY''@|$(REPLACE_ISATTY)|g' \
-e 's|@''REPLACE_LCHOWN''@|$(REPLACE_LCHOWN)|g' \
-e 's|@''REPLACE_LINK''@|$(REPLACE_LINK)|g' \
-e 's|@''REPLACE_LINKAT''@|$(REPLACE_LINKAT)|g' \
-e 's|@''REPLACE_LSEEK''@|$(REPLACE_LSEEK)|g' \
-e 's|@''REPLACE_PREAD''@|$(REPLACE_PREAD)|g' \
-e 's|@''REPLACE_PWRITE''@|$(REPLACE_PWRITE)|g' \
-e 's|@''REPLACE_READ''@|$(REPLACE_READ)|g' \
-e 's|@''REPLACE_READLINK''@|$(REPLACE_READLINK)|g' \
-e 's|@''REPLACE_RMDIR''@|$(REPLACE_RMDIR)|g' \
-e 's|@''REPLACE_SLEEP''@|$(REPLACE_SLEEP)|g' \
-e 's|@''REPLACE_SYMLINK''@|$(REPLACE_SYMLINK)|g' \
-e 's|@''REPLACE_TTYNAME_R''@|$(REPLACE_TTYNAME_R)|g' \
-e 's|@''REPLACE_UNLINK''@|$(REPLACE_UNLINK)|g' \
-e 's|@''REPLACE_UNLINKAT''@|$(REPLACE_UNLINKAT)|g' \
-e 's|@''REPLACE_USLEEP''@|$(REPLACE_USLEEP)|g' \
-e 's|@''REPLACE_WRITE''@|$(REPLACE_WRITE)|g' \
-e 's|@''UNISTD_H_HAVE_WINSOCK2_H''@|$(UNISTD_H_HAVE_WINSOCK2_H)|g' \
-e 's|@''UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS''@|$(UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS)|g' \
-e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
-e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)'; \
} > $@-t && \
mv $@-t $@
MOSTLYCLEANFILES += unistd.h unistd.h-t
EXTRA_DIST += unistd.in.h
## end gnulib module unistd
mostlyclean-local: mostlyclean-generic
@for dir in '' $(MOSTLYCLEANDIRS); do \

83
gl/cloexec.c Normal file
View File

@@ -0,0 +1,83 @@
/* closexec.c - set or clear the close-on-exec descriptor flag
Copyright (C) 1991, 2004-2006, 2009-2013 Free Software Foundation, Inc.
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 <http://www.gnu.org/licenses/>.
The code is taken from glibc/manual/llio.texi */
#include <config.h>
#include "cloexec.h"
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
/* Set the 'FD_CLOEXEC' flag of DESC if VALUE is true,
or clear the flag if VALUE is false.
Return 0 on success, or -1 on error with 'errno' set.
Note that on MingW, this function does NOT protect DESC from being
inherited into spawned children. Instead, either use dup_cloexec
followed by closing the original DESC, or use interfaces such as
open or pipe2 that accept flags like O_CLOEXEC to create DESC
non-inheritable in the first place. */
int
set_cloexec_flag (int desc, bool value)
{
#ifdef F_SETFD
int flags = fcntl (desc, F_GETFD, 0);
if (0 <= flags)
{
int newflags = (value ? flags | FD_CLOEXEC : flags & ~FD_CLOEXEC);
if (flags == newflags
|| fcntl (desc, F_SETFD, newflags) != -1)
return 0;
}
return -1;
#else /* !F_SETFD */
/* Use dup2 to reject invalid file descriptors; the cloexec flag
will be unaffected. */
if (desc < 0)
{
errno = EBADF;
return -1;
}
if (dup2 (desc, desc) < 0)
/* errno is EBADF here. */
return -1;
/* There is nothing we can do on this kind of platform. Punt. */
return 0;
#endif /* !F_SETFD */
}
/* Duplicates a file handle FD, while marking the copy to be closed
prior to exec or spawn. Returns -1 and sets errno if FD could not
be duplicated. */
int
dup_cloexec (int fd)
{
return fcntl (fd, F_DUPFD_CLOEXEC, 0);
}

38
gl/cloexec.h Normal file
View File

@@ -0,0 +1,38 @@
/* closexec.c - set or clear the close-on-exec descriptor flag
Copyright (C) 2004, 2009-2013 Free Software Foundation, Inc.
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 <http://www.gnu.org/licenses/>.
*/
#include <stdbool.h>
/* Set the 'FD_CLOEXEC' flag of DESC if VALUE is true,
or clear the flag if VALUE is false.
Return 0 on success, or -1 on error with 'errno' set.
Note that on MingW, this function does NOT protect DESC from being
inherited into spawned children. Instead, either use dup_cloexec
followed by closing the original DESC, or use interfaces such as
open or pipe2 that accept flags like O_CLOEXEC to create DESC
non-inheritable in the first place. */
int set_cloexec_flag (int desc, bool value);
/* Duplicates a file handle FD, while marking the copy to be closed
prior to exec or spawn. Returns -1 and sets errno if FD could not
be duplicated. */
int dup_cloexec (int fd);

69
gl/close.c Normal file
View File

@@ -0,0 +1,69 @@
/* close replacement.
Copyright (C) 2008-2013 Free Software Foundation, Inc.
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 <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <unistd.h>
#include <errno.h>
#include "fd-hook.h"
#include "msvc-inval.h"
#undef close
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
static int
close_nothrow (int fd)
{
int result;
TRY_MSVC_INVAL
{
result = close (fd);
}
CATCH_MSVC_INVAL
{
result = -1;
errno = EBADF;
}
DONE_MSVC_INVAL;
return result;
}
#else
# define close_nothrow close
#endif
/* Override close() to call into other gnulib modules. */
int
rpl_close (int fd)
{
#if WINDOWS_SOCKETS
int retval = execute_all_close_hooks (close_nothrow, fd);
#else
int retval = close_nothrow (fd);
#endif
#if REPLACE_FCHDIR
if (retval >= 0)
_gl_unregister_fd (fd);
#endif
return retval;
}

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/* Duplicate an open file descriptor to a specified file descriptor.
Copyright (C) 1999, 2004-2007, 2009-2013 Free Software Foundation, Inc.
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 <http://www.gnu.org/licenses/>. */
/* written by Paul Eggert */
#include <config.h>
/* Specification. */
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#if HAVE_DUP2
# undef dup2
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
/* Get declarations of the native Windows API functions. */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include "msvc-inval.h"
/* Get _get_osfhandle. */
# include "msvc-nothrow.h"
static int
ms_windows_dup2 (int fd, int desired_fd)
{
int result;
/* If fd is closed, mingw hangs on dup2 (fd, fd). If fd is open,
dup2 (fd, fd) returns 0, but all further attempts to use fd in
future dup2 calls will hang. */
if (fd == desired_fd)
{
if ((HANDLE) _get_osfhandle (fd) == INVALID_HANDLE_VALUE)
{
errno = EBADF;
return -1;
}
return fd;
}
/* Wine 1.0.1 return 0 when desired_fd is negative but not -1:
http://bugs.winehq.org/show_bug.cgi?id=21289 */
if (desired_fd < 0)
{
errno = EBADF;
return -1;
}
TRY_MSVC_INVAL
{
result = dup2 (fd, desired_fd);
}
CATCH_MSVC_INVAL
{
errno = EBADF;
result = -1;
}
DONE_MSVC_INVAL;
if (result == 0)
result = desired_fd;
return result;
}
# define dup2 ms_windows_dup2
# endif
int
rpl_dup2 (int fd, int desired_fd)
{
int result;
# ifdef F_GETFL
/* On Linux kernels 2.6.26-2.6.29, dup2 (fd, fd) returns -EBADF.
On Cygwin 1.5.x, dup2 (1, 1) returns 0.
On Cygwin 1.7.17, dup2 (1, -1) dumps core.
On Haiku, dup2 (fd, fd) mistakenly clears FD_CLOEXEC. */
if (desired_fd < 0)
fd = desired_fd;
if (fd == desired_fd)
return fcntl (fd, F_GETFL) == -1 ? -1 : fd;
# endif
result = dup2 (fd, desired_fd);
/* Correct an errno value on FreeBSD 6.1 and Cygwin 1.5.x. */
if (result == -1 && errno == EMFILE)
errno = EBADF;
# if REPLACE_FCHDIR
if (fd != desired_fd && result != -1)
result = _gl_register_dup (fd, result);
# endif
return result;
}
#else /* !HAVE_DUP2 */
/* On older platforms, dup2 did not exist. */
# ifndef F_DUPFD
static int
dupfd (int fd, int desired_fd)
{
int duplicated_fd = dup (fd);
if (duplicated_fd < 0 || duplicated_fd == desired_fd)
return duplicated_fd;
else
{
int r = dupfd (fd, desired_fd);
int e = errno;
close (duplicated_fd);
errno = e;
return r;
}
}
# endif
int
dup2 (int fd, int desired_fd)
{
int result = fcntl (fd, F_GETFL) < 0 ? -1 : fd;
if (result == -1 || fd == desired_fd)
return result;
close (desired_fd);
# ifdef F_DUPFD
result = fcntl (fd, F_DUPFD, desired_fd);
# if REPLACE_FCHDIR
if (0 <= result)
result = _gl_register_dup (fd, result);
# endif
# else
result = dupfd (fd, desired_fd);
# endif
if (result == -1 && (errno == EMFILE || errno == EINVAL))
errno = EBADF;
return result;
}
#endif /* !HAVE_DUP2 */

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/* Provide file descriptor control.
Copyright (C) 2009-2013 Free Software Foundation, Inc.
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 <http://www.gnu.org/licenses/>. */
/* Written by Eric Blake <ebb9@byu.net>. */
#include <config.h>
/* Specification. */
#include <fcntl.h>
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <unistd.h>
#if !HAVE_FCNTL
# define rpl_fcntl fcntl
#endif
#undef fcntl
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
/* Get declarations of the native Windows API functions. */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
/* Get _get_osfhandle. */
# include "msvc-nothrow.h"
/* Upper bound on getdtablesize(). See lib/getdtablesize.c. */
# define OPEN_MAX_MAX 0x10000
/* Duplicate OLDFD into the first available slot of at least NEWFD,
which must be positive, with FLAGS determining whether the duplicate
will be inheritable. */
static int
dupfd (int oldfd, int newfd, int flags)
{
/* Mingw has no way to create an arbitrary fd. Iterate until all
file descriptors less than newfd are filled up. */
HANDLE curr_process = GetCurrentProcess ();
HANDLE old_handle = (HANDLE) _get_osfhandle (oldfd);
unsigned char fds_to_close[OPEN_MAX_MAX / CHAR_BIT];
unsigned int fds_to_close_bound = 0;
int result;
BOOL inherit = flags & O_CLOEXEC ? FALSE : TRUE;
int mode;
if (newfd < 0 || getdtablesize () <= newfd)
{
errno = EINVAL;
return -1;
}
if (old_handle == INVALID_HANDLE_VALUE
|| (mode = setmode (oldfd, O_BINARY)) == -1)
{
/* oldfd is not open, or is an unassigned standard file
descriptor. */
errno = EBADF;
return -1;
}
setmode (oldfd, mode);
flags |= mode;
for (;;)
{
HANDLE new_handle;
int duplicated_fd;
unsigned int index;
if (!DuplicateHandle (curr_process, /* SourceProcessHandle */
old_handle, /* SourceHandle */
curr_process, /* TargetProcessHandle */
(PHANDLE) &new_handle, /* TargetHandle */
(DWORD) 0, /* DesiredAccess */
inherit, /* InheritHandle */
DUPLICATE_SAME_ACCESS)) /* Options */
{
/* TODO: Translate GetLastError () into errno. */
errno = EMFILE;
result = -1;
break;
}
duplicated_fd = _open_osfhandle ((intptr_t) new_handle, flags);
if (duplicated_fd < 0)
{
CloseHandle (new_handle);
errno = EMFILE;
result = -1;
break;
}
if (newfd <= duplicated_fd)
{
result = duplicated_fd;
break;
}
/* Set the bit duplicated_fd in fds_to_close[]. */
index = (unsigned int) duplicated_fd / CHAR_BIT;
if (fds_to_close_bound <= index)
{
if (sizeof fds_to_close <= index)
/* Need to increase OPEN_MAX_MAX. */
abort ();
memset (fds_to_close + fds_to_close_bound, '\0',
index + 1 - fds_to_close_bound);
fds_to_close_bound = index + 1;
}
fds_to_close[index] |= 1 << ((unsigned int) duplicated_fd % CHAR_BIT);
}
/* Close the previous fds that turned out to be too small. */
{
int saved_errno = errno;
unsigned int duplicated_fd;
for (duplicated_fd = 0;
duplicated_fd < fds_to_close_bound * CHAR_BIT;
duplicated_fd++)
if ((fds_to_close[duplicated_fd / CHAR_BIT]
>> (duplicated_fd % CHAR_BIT))
& 1)
close (duplicated_fd);
errno = saved_errno;
}
# if REPLACE_FCHDIR
if (0 <= result)
result = _gl_register_dup (oldfd, result);
# endif
return result;
}
#endif /* W32 */
/* Perform the specified ACTION on the file descriptor FD, possibly
using the argument ARG further described below. This replacement
handles the following actions, and forwards all others on to the
native fcntl. An unrecognized ACTION returns -1 with errno set to
EINVAL.
F_DUPFD - duplicate FD, with int ARG being the minimum target fd.
If successful, return the duplicate, which will be inheritable;
otherwise return -1 and set errno.
F_DUPFD_CLOEXEC - duplicate FD, with int ARG being the minimum
target fd. If successful, return the duplicate, which will not be
inheritable; otherwise return -1 and set errno.
F_GETFD - ARG need not be present. If successful, return a
non-negative value containing the descriptor flags of FD (only
FD_CLOEXEC is portable, but other flags may be present); otherwise
return -1 and set errno. */
int
rpl_fcntl (int fd, int action, /* arg */...)
{
va_list arg;
int result = -1;
va_start (arg, action);
switch (action)
{
#if !HAVE_FCNTL
case F_DUPFD:
{
int target = va_arg (arg, int);
result = dupfd (fd, target, 0);
break;
}
#elif FCNTL_DUPFD_BUGGY || REPLACE_FCHDIR
case F_DUPFD:
{
int target = va_arg (arg, int);
/* Detect invalid target; needed for cygwin 1.5.x. */
if (target < 0 || getdtablesize () <= target)
errno = EINVAL;
else
{
/* Haiku alpha 2 loses fd flags on original. */
int flags = fcntl (fd, F_GETFD);
if (flags < 0)
{
result = -1;
break;
}
result = fcntl (fd, action, target);
if (0 <= result && fcntl (fd, F_SETFD, flags) == -1)
{
int saved_errno = errno;
close (result);
result = -1;
errno = saved_errno;
}
# if REPLACE_FCHDIR
if (0 <= result)
result = _gl_register_dup (fd, result);
# endif
}
break;
} /* F_DUPFD */
#endif /* FCNTL_DUPFD_BUGGY || REPLACE_FCHDIR */
case F_DUPFD_CLOEXEC:
{
int target = va_arg (arg, int);
#if !HAVE_FCNTL
result = dupfd (fd, target, O_CLOEXEC);
break;
#else /* HAVE_FCNTL */
/* Try the system call first, if the headers claim it exists
(that is, if GNULIB_defined_F_DUPFD_CLOEXEC is 0), since we
may be running with a glibc that has the macro but with an
older kernel that does not support it. Cache the
information on whether the system call really works, but
avoid caching failure if the corresponding F_DUPFD fails
for any reason. 0 = unknown, 1 = yes, -1 = no. */
static int have_dupfd_cloexec = GNULIB_defined_F_DUPFD_CLOEXEC ? -1 : 0;
if (0 <= have_dupfd_cloexec)
{
result = fcntl (fd, action, target);
if (0 <= result || errno != EINVAL)
{
have_dupfd_cloexec = 1;
# if REPLACE_FCHDIR
if (0 <= result)
result = _gl_register_dup (fd, result);
# endif
}
else
{
result = rpl_fcntl (fd, F_DUPFD, target);
if (result < 0)
break;
have_dupfd_cloexec = -1;
}
}
else
result = rpl_fcntl (fd, F_DUPFD, target);
if (0 <= result && have_dupfd_cloexec == -1)
{
int flags = fcntl (result, F_GETFD);
if (flags < 0 || fcntl (result, F_SETFD, flags | FD_CLOEXEC) == -1)
{
int saved_errno = errno;
close (result);
errno = saved_errno;
result = -1;
}
}
break;
#endif /* HAVE_FCNTL */
} /* F_DUPFD_CLOEXEC */
#if !HAVE_FCNTL
case F_GETFD:
{
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
HANDLE handle = (HANDLE) _get_osfhandle (fd);
DWORD flags;
if (handle == INVALID_HANDLE_VALUE
|| GetHandleInformation (handle, &flags) == 0)
errno = EBADF;
else
result = (flags & HANDLE_FLAG_INHERIT) ? 0 : FD_CLOEXEC;
# else /* !W32 */
/* Use dup2 to reject invalid file descriptors. No way to
access this information, so punt. */
if (0 <= dup2 (fd, fd))
result = 0;
# endif /* !W32 */
break;
} /* F_GETFD */
#endif /* !HAVE_FCNTL */
/* Implementing F_SETFD on mingw is not trivial - there is no
API for changing the O_NOINHERIT bit on an fd, and merely
changing the HANDLE_FLAG_INHERIT bit on the underlying handle
can lead to odd state. It may be possible by duplicating the
handle, using _open_osfhandle with the right flags, then
using dup2 to move the duplicate onto the original, but that
is not supported for now. */
default:
{
#if HAVE_FCNTL
void *p = va_arg (arg, void *);
result = fcntl (fd, action, p);
#else
errno = EINVAL;
#endif
break;
}
}
va_end (arg);
return result;
}

347
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/* Like <fcntl.h>, but with non-working flags defined to 0.
Copyright (C) 2006-2013 Free Software Foundation, Inc.
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 <http://www.gnu.org/licenses/>. */
/* written by Paul Eggert */
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@
#if defined __need_system_fcntl_h
/* Special invocation convention. */
/* Needed before <sys/stat.h>.
May also define off_t to a 64-bit type on native Windows. */
#include <sys/types.h>
/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
<fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
extern "C" { ... } block, which leads to errors in C++ mode with the
overridden <sys/stat.h> from gnulib. These errors are known to be gone
with g++ version >= 4.3. */
#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
# include <sys/stat.h>
#endif
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
#else
/* Normal invocation convention. */
#ifndef _@GUARD_PREFIX@_FCNTL_H
/* Needed before <sys/stat.h>.
May also define off_t to a 64-bit type on native Windows. */
#include <sys/types.h>
/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
<fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
extern "C" { ... } block, which leads to errors in C++ mode with the
overridden <sys/stat.h> from gnulib. These errors are known to be gone
with g++ version >= 4.3. */
#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
# include <sys/stat.h>
#endif
/* The include_next requires a split double-inclusion guard. */
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
#ifndef _@GUARD_PREFIX@_FCNTL_H
#define _@GUARD_PREFIX@_FCNTL_H
#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
# include <unistd.h>
#endif
/* Native Windows platforms declare open(), creat() in <io.h>. */
#if (@GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \
&& ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
# include <io.h>
#endif
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
/* The definition of _GL_ARG_NONNULL is copied here. */
/* The definition of _GL_WARN_ON_USE is copied here. */
/* Declare overridden functions. */
#if @GNULIB_FCNTL@
# if @REPLACE_FCNTL@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef fcntl
# define fcntl rpl_fcntl
# endif
_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
# else
# if !@HAVE_FCNTL@
_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
# endif
_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
# endif
_GL_CXXALIASWARN (fcntl);
#elif defined GNULIB_POSIXCHECK
# undef fcntl
# if HAVE_RAW_DECL_FCNTL
_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
"use gnulib module fcntl for portability");
# endif
#endif
#if @GNULIB_OPEN@
# if @REPLACE_OPEN@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef open
# define open rpl_open
# endif
_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
# else
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
# endif
/* On HP-UX 11, in C++ mode, open() is defined as an inline function with a
default argument. _GL_CXXALIASWARN does not work in this case. */
# if !defined __hpux
_GL_CXXALIASWARN (open);
# endif
#elif defined GNULIB_POSIXCHECK
# undef open
/* Assume open is always declared. */
_GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
"use gnulib module open for portability");
#endif
#if @GNULIB_OPENAT@
# if @REPLACE_OPENAT@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef openat
# define openat rpl_openat
# endif
_GL_FUNCDECL_RPL (openat, int,
(int fd, char const *file, int flags, /* mode_t mode */ ...)
_GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (openat, int,
(int fd, char const *file, int flags, /* mode_t mode */ ...));
# else
# if !@HAVE_OPENAT@
_GL_FUNCDECL_SYS (openat, int,
(int fd, char const *file, int flags, /* mode_t mode */ ...)
_GL_ARG_NONNULL ((2)));
# endif
_GL_CXXALIAS_SYS (openat, int,
(int fd, char const *file, int flags, /* mode_t mode */ ...));
# endif
_GL_CXXALIASWARN (openat);
#elif defined GNULIB_POSIXCHECK
# undef openat
# if HAVE_RAW_DECL_OPENAT
_GL_WARN_ON_USE (openat, "openat is not portable - "
"use gnulib module openat for portability");
# endif
#endif
/* Fix up the FD_* macros, only known to be missing on mingw. */
#ifndef FD_CLOEXEC
# define FD_CLOEXEC 1
#endif
/* Fix up the supported F_* macros. Intentionally leave other F_*
macros undefined. Only known to be missing on mingw. */
#ifndef F_DUPFD_CLOEXEC
# define F_DUPFD_CLOEXEC 0x40000000
/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
# define GNULIB_defined_F_DUPFD_CLOEXEC 1
#else
# define GNULIB_defined_F_DUPFD_CLOEXEC 0
#endif
#ifndef F_DUPFD
# define F_DUPFD 1
#endif
#ifndef F_GETFD
# define F_GETFD 2
#endif
/* Fix up the O_* macros. */
#if !defined O_DIRECT && defined O_DIRECTIO
/* Tru64 spells it 'O_DIRECTIO'. */
# define O_DIRECT O_DIRECTIO
#endif
#if !defined O_CLOEXEC && defined O_NOINHERIT
/* Mingw spells it 'O_NOINHERIT'. */
# define O_CLOEXEC O_NOINHERIT
#endif
#ifndef O_CLOEXEC
# define O_CLOEXEC 0
#endif
#ifndef O_DIRECT
# define O_DIRECT 0
#endif
#ifndef O_DIRECTORY
# define O_DIRECTORY 0
#endif
#ifndef O_DSYNC
# define O_DSYNC 0
#endif
#ifndef O_EXEC
# define O_EXEC O_RDONLY /* This is often close enough in older systems. */
#endif
#ifndef O_IGNORE_CTTY
# define O_IGNORE_CTTY 0
#endif
#ifndef O_NDELAY
# define O_NDELAY 0
#endif
#ifndef O_NOATIME
# define O_NOATIME 0
#endif
#ifndef O_NONBLOCK
# define O_NONBLOCK O_NDELAY
#endif
/* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero
value of O_NONBLOCK. Otherwise, O_NONBLOCK is defined (above) to O_NDELAY
or to 0 as fallback. */
#if @GNULIB_NONBLOCKING@
# if O_NONBLOCK
# define GNULIB_defined_O_NONBLOCK 0
# else
# define GNULIB_defined_O_NONBLOCK 1
# undef O_NONBLOCK
# define O_NONBLOCK 0x40000000
# endif
#endif
#ifndef O_NOCTTY
# define O_NOCTTY 0
#endif
#ifndef O_NOFOLLOW
# define O_NOFOLLOW 0
#endif
#ifndef O_NOLINK
# define O_NOLINK 0
#endif
#ifndef O_NOLINKS
# define O_NOLINKS 0
#endif
#ifndef O_NOTRANS
# define O_NOTRANS 0
#endif
#ifndef O_RSYNC
# define O_RSYNC 0
#endif
#ifndef O_SEARCH
# define O_SEARCH O_RDONLY /* This is often close enough in older systems. */
#endif
#ifndef O_SYNC
# define O_SYNC 0
#endif
#ifndef O_TTY_INIT
# define O_TTY_INIT 0
#endif
#if ~O_ACCMODE & (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
# undef O_ACCMODE
# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
#endif
/* For systems that distinguish between text and binary I/O.
O_BINARY is usually declared in fcntl.h */
#if !defined O_BINARY && defined _O_BINARY
/* For MSC-compatible compilers. */
# define O_BINARY _O_BINARY
# define O_TEXT _O_TEXT
#endif
#if defined __BEOS__ || defined __HAIKU__
/* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */
# undef O_BINARY
# undef O_TEXT
#endif
#ifndef O_BINARY
# define O_BINARY 0
# define O_TEXT 0
#endif
/* Fix up the AT_* macros. */
/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
value exceeds INT_MAX, so its use as an int doesn't conform to the
C standard, and GCC and Sun C complain in some cases. If the bug
is present, undef AT_FDCWD here, so it can be redefined below. */
#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
# undef AT_FDCWD
#endif
/* Use the same bit pattern as Solaris 9, but with the proper
signedness. The bit pattern is important, in case this actually is
Solaris with the above workaround. */
#ifndef AT_FDCWD
# define AT_FDCWD (-3041965)
#endif
/* Use the same values as Solaris 9. This shouldn't matter, but
there's no real reason to differ. */
#ifndef AT_SYMLINK_NOFOLLOW
# define AT_SYMLINK_NOFOLLOW 4096
#endif
#ifndef AT_REMOVEDIR
# define AT_REMOVEDIR 1
#endif
/* Solaris 9 lacks these two, so just pick unique values. */
#ifndef AT_SYMLINK_FOLLOW
# define AT_SYMLINK_FOLLOW 2
#endif
#ifndef AT_EACCESS
# define AT_EACCESS 4
#endif
#endif /* _@GUARD_PREFIX@_FCNTL_H */
#endif /* _@GUARD_PREFIX@_FCNTL_H */
#endif

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/* Hook for making making file descriptor functions close(), ioctl() extensible.
Copyright (C) 2009-2013 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2009.
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 <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include "fd-hook.h"
#include <stdlib.h>
/* Currently, this entire code is only needed for the handling of sockets
on native Windows platforms. */
#if WINDOWS_SOCKETS
/* The first and last link in the doubly linked list.
Initially the list is empty. */
static struct fd_hook anchor = { &anchor, &anchor, NULL, NULL };
int
execute_close_hooks (const struct fd_hook *remaining_list, gl_close_fn primary,
int fd)
{
if (remaining_list == &anchor)
/* End of list reached. */
return primary (fd);
else
return remaining_list->private_close_fn (remaining_list->private_next,
primary, fd);
}
int
execute_all_close_hooks (gl_close_fn primary, int fd)
{
return execute_close_hooks (anchor.private_next, primary, fd);
}
int
execute_ioctl_hooks (const struct fd_hook *remaining_list, gl_ioctl_fn primary,
int fd, int request, void *arg)
{
if (remaining_list == &anchor)
/* End of list reached. */
return primary (fd, request, arg);
else
return remaining_list->private_ioctl_fn (remaining_list->private_next,
primary, fd, request, arg);
}
int
execute_all_ioctl_hooks (gl_ioctl_fn primary,
int fd, int request, void *arg)
{
return execute_ioctl_hooks (anchor.private_next, primary, fd, request, arg);
}
void
register_fd_hook (close_hook_fn close_hook, ioctl_hook_fn ioctl_hook, struct fd_hook *link)
{
if (close_hook == NULL)
close_hook = execute_close_hooks;
if (ioctl_hook == NULL)
ioctl_hook = execute_ioctl_hooks;
if (link->private_next == NULL && link->private_prev == NULL)
{
/* Add the link to the doubly linked list. */
link->private_next = anchor.private_next;
link->private_prev = &anchor;
link->private_close_fn = close_hook;
link->private_ioctl_fn = ioctl_hook;
anchor.private_next->private_prev = link;
anchor.private_next = link;
}
else
{
/* The link is already in use. */
if (link->private_close_fn != close_hook
|| link->private_ioctl_fn != ioctl_hook)
abort ();
}
}
void
unregister_fd_hook (struct fd_hook *link)
{
struct fd_hook *next = link->private_next;
struct fd_hook *prev = link->private_prev;
if (next != NULL && prev != NULL)
{
/* The link is in use. Remove it from the doubly linked list. */
prev->private_next = next;
next->private_prev = prev;
/* Clear the link, to mark it unused. */
link->private_next = NULL;
link->private_prev = NULL;
link->private_close_fn = NULL;
link->private_ioctl_fn = NULL;
}
}
#endif

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/* Hook for making making file descriptor functions close(), ioctl() extensible.
Copyright (C) 2009-2013 Free Software Foundation, Inc.
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 <http://www.gnu.org/licenses/>. */
#ifndef FD_HOOK_H
#define FD_HOOK_H
#ifdef __cplusplus
extern "C" {
#endif
/* Currently, this entire code is only needed for the handling of sockets
on native Windows platforms. */
#if WINDOWS_SOCKETS
/* Type of function that closes FD. */
typedef int (*gl_close_fn) (int fd);
/* Type of function that applies a control request to FD. */
typedef int (*gl_ioctl_fn) (int fd, int request, void *arg);
/* An element of the list of file descriptor hooks.
In CLOS (Common Lisp Object System) speak, it consists of an "around"
method for the close() function and an "around" method for the ioctl()
function.
The fields of this structure are considered private. */
struct fd_hook
{
/* Doubly linked list. */
struct fd_hook *private_next;
struct fd_hook *private_prev;
/* Function that treats the types of FD that it knows about and calls
execute_close_hooks (REMAINING_LIST, PRIMARY, FD) as a fallback. */
int (*private_close_fn) (const struct fd_hook *remaining_list,
gl_close_fn primary,
int fd);
/* Function that treats the types of FD that it knows about and calls
execute_ioctl_hooks (REMAINING_LIST, PRIMARY, FD, REQUEST, ARG) as a
fallback. */
int (*private_ioctl_fn) (const struct fd_hook *remaining_list,
gl_ioctl_fn primary,
int fd, int request, void *arg);
};
/* This type of function closes FD, applying special knowledge for the FD
types it knows about, and calls
execute_close_hooks (REMAINING_LIST, PRIMARY, FD)
for the other FD types.
In CLOS speak, REMAINING_LIST is the remaining list of "around" methods,
and PRIMARY is the "primary" method for close(). */
typedef int (*close_hook_fn) (const struct fd_hook *remaining_list,
gl_close_fn primary,
int fd);
/* Execute the close hooks in REMAINING_LIST, with PRIMARY as "primary" method.
Return 0 or -1, like close() would do. */
extern int execute_close_hooks (const struct fd_hook *remaining_list,
gl_close_fn primary,
int fd);
/* Execute all close hooks, with PRIMARY as "primary" method.
Return 0 or -1, like close() would do. */
extern int execute_all_close_hooks (gl_close_fn primary, int fd);
/* This type of function applies a control request to FD, applying special
knowledge for the FD types it knows about, and calls
execute_ioctl_hooks (REMAINING_LIST, PRIMARY, FD, REQUEST, ARG)
for the other FD types.
In CLOS speak, REMAINING_LIST is the remaining list of "around" methods,
and PRIMARY is the "primary" method for ioctl(). */
typedef int (*ioctl_hook_fn) (const struct fd_hook *remaining_list,
gl_ioctl_fn primary,
int fd, int request, void *arg);
/* Execute the ioctl hooks in REMAINING_LIST, with PRIMARY as "primary" method.
Return 0 or -1, like ioctl() would do. */
extern int execute_ioctl_hooks (const struct fd_hook *remaining_list,
gl_ioctl_fn primary,
int fd, int request, void *arg);
/* Execute all ioctl hooks, with PRIMARY as "primary" method.
Return 0 or -1, like ioctl() would do. */
extern int execute_all_ioctl_hooks (gl_ioctl_fn primary,
int fd, int request, void *arg);
/* Add a function pair to the list of file descriptor hooks.
CLOSE_HOOK and IOCTL_HOOK may be NULL, indicating no change.
The LINK variable points to a piece of memory which is guaranteed to be
accessible until the corresponding call to unregister_fd_hook. */
extern void register_fd_hook (close_hook_fn close_hook, ioctl_hook_fn ioctl_hook,
struct fd_hook *link);
/* Removes a hook from the list of file descriptor hooks. */
extern void unregister_fd_hook (struct fd_hook *link);
#endif
#ifdef __cplusplus
}
#endif
#endif /* FD_HOOK_H */

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/* getdtablesize() function for platforms that don't have it.
Copyright (C) 2008-2013 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2008.
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 <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <unistd.h>
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
#include <stdio.h>
#include "msvc-inval.h"
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
static int
_setmaxstdio_nothrow (int newmax)
{
int result;
TRY_MSVC_INVAL
{
result = _setmaxstdio (newmax);
}
CATCH_MSVC_INVAL
{
result = -1;
}
DONE_MSVC_INVAL;
return result;
}
# define _setmaxstdio _setmaxstdio_nothrow
#endif
/* Cache for the previous getdtablesize () result. */
static int dtablesize;
int
getdtablesize (void)
{
if (dtablesize == 0)
{
/* We are looking for the number N such that the valid file descriptors
are 0..N-1. It can be obtained through a loop as follows:
{
int fd;
for (fd = 3; fd < 65536; fd++)
if (dup2 (0, fd) == -1)
break;
return fd;
}
On Windows XP, the result is 2048.
The drawback of this loop is that it allocates memory for a libc
internal array that is never freed.
The number N can also be obtained as the upper bound for
_getmaxstdio (). _getmaxstdio () returns the maximum number of open
FILE objects. The sanity check in _setmaxstdio reveals the maximum
number of file descriptors. This too allocates memory, but it is
freed when we call _setmaxstdio with the original value. */
int orig_max_stdio = _getmaxstdio ();
unsigned int bound;
for (bound = 0x10000; _setmaxstdio (bound) < 0; bound = bound / 2)
;
_setmaxstdio (orig_max_stdio);
dtablesize = bound;
}
return dtablesize;
}
#endif

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# close.m4 serial 8
dnl Copyright (C) 2008-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_CLOSE],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
AC_REQUIRE([gl_MSVC_INVAL])
if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
REPLACE_CLOSE=1
fi
m4_ifdef([gl_PREREQ_SYS_H_WINSOCK2], [
gl_PREREQ_SYS_H_WINSOCK2
if test $UNISTD_H_HAVE_WINSOCK2_H = 1; then
dnl Even if the 'socket' module is not used here, another part of the
dnl application may use it and pass file descriptors that refer to
dnl sockets to the close() function. So enable the support for sockets.
REPLACE_CLOSE=1
fi
])
dnl Replace close() for supporting the gnulib-defined fchdir() function,
dnl to keep fchdir's bookkeeping up-to-date.
m4_ifdef([gl_FUNC_FCHDIR], [
if test $REPLACE_CLOSE = 0; then
gl_TEST_FCHDIR
if test $HAVE_FCHDIR = 0; then
REPLACE_CLOSE=1
fi
fi
])
])

84
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#serial 19
dnl Copyright (C) 2002, 2005, 2007, 2009-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_DUP2],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
AC_REQUIRE([AC_CANONICAL_HOST])
m4_ifdef([gl_FUNC_DUP2_OBSOLETE], [
AC_CHECK_FUNCS_ONCE([dup2])
if test $ac_cv_func_dup2 = no; then
HAVE_DUP2=0
fi
], [
AC_DEFINE([HAVE_DUP2], [1], [Define to 1 if you have the 'dup2' function.])
])
if test $HAVE_DUP2 = 1; then
AC_CACHE_CHECK([whether dup2 works], [gl_cv_func_dup2_works],
[AC_RUN_IFELSE([
AC_LANG_PROGRAM([[#include <unistd.h>
#include <fcntl.h>
#include <errno.h>]],
[int result = 0;
#ifdef FD_CLOEXEC
if (fcntl (1, F_SETFD, FD_CLOEXEC) == -1)
result |= 1;
#endif
if (dup2 (1, 1) == 0)
result |= 2;
#ifdef FD_CLOEXEC
if (fcntl (1, F_GETFD) != FD_CLOEXEC)
result |= 4;
#endif
close (0);
if (dup2 (0, 0) != -1)
result |= 8;
/* Many gnulib modules require POSIX conformance of EBADF. */
if (dup2 (2, 1000000) == -1 && errno != EBADF)
result |= 16;
/* Flush out a cygwin core dump. */
if (dup2 (2, -1) != -1 || errno != EBADF)
result |= 32;
return result;
])
],
[gl_cv_func_dup2_works=yes], [gl_cv_func_dup2_works=no],
[case "$host_os" in
mingw*) # on this platform, dup2 always returns 0 for success
gl_cv_func_dup2_works="guessing no" ;;
cygwin*) # on cygwin 1.5.x, dup2(1,1) returns 0
gl_cv_func_dup2_works="guessing no" ;;
linux*) # On linux between 2008-07-27 and 2009-05-11, dup2 of a
# closed fd may yield -EBADF instead of -1 / errno=EBADF.
gl_cv_func_dup2_works="guessing no" ;;
freebsd*) # on FreeBSD 6.1, dup2(1,1000000) gives EMFILE, not EBADF.
gl_cv_func_dup2_works="guessing no" ;;
haiku*) # on Haiku alpha 2, dup2(1, 1) resets FD_CLOEXEC.
gl_cv_func_dup2_works="guessing no" ;;
*) gl_cv_func_dup2_works="guessing yes" ;;
esac])
])
case "$gl_cv_func_dup2_works" in
*yes) ;;
*)
REPLACE_DUP2=1
;;
esac
fi
dnl Replace dup2() for supporting the gnulib-defined fchdir() function,
dnl to keep fchdir's bookkeeping up-to-date.
m4_ifdef([gl_FUNC_FCHDIR], [
gl_TEST_FCHDIR
if test $HAVE_FCHDIR = 0; then
if test $HAVE_DUP2 = 1; then
REPLACE_DUP2=1
fi
fi
])
])
# Prerequisites of lib/dup2.c.
AC_DEFUN([gl_PREREQ_DUP2], [])

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# fcntl-o.m4 serial 4
dnl Copyright (C) 2006, 2009-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Written by Paul Eggert.
# Test whether the flags O_NOATIME and O_NOFOLLOW actually work.
# Define HAVE_WORKING_O_NOATIME to 1 if O_NOATIME works, or to 0 otherwise.
# Define HAVE_WORKING_O_NOFOLLOW to 1 if O_NOFOLLOW works, or to 0 otherwise.
AC_DEFUN([gl_FCNTL_O_FLAGS],
[
dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW.
dnl AC_USE_SYSTEM_EXTENSIONS was introduced in autoconf 2.60 and obsoletes
dnl AC_GNU_SOURCE.
m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],
[AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])],
[AC_REQUIRE([AC_GNU_SOURCE])])
AC_CHECK_HEADERS_ONCE([unistd.h])
AC_CHECK_FUNCS_ONCE([symlink])
AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h],
[AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/types.h>
#include <sys/stat.h>
#if HAVE_UNISTD_H
# include <unistd.h>
#else /* on Windows with MSVC */
# include <io.h>
# include <stdlib.h>
# defined sleep(n) _sleep ((n) * 1000)
#endif
#include <fcntl.h>
#ifndef O_NOATIME
#define O_NOATIME 0
#endif
#ifndef O_NOFOLLOW
#define O_NOFOLLOW 0
#endif
static int const constants[] =
{
O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_APPEND,
O_NONBLOCK, O_SYNC, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY
};
]],
[[
int result = !constants;
#if HAVE_SYMLINK
{
static char const sym[] = "conftest.sym";
if (symlink ("/dev/null", sym) != 0)
result |= 2;
else
{
int fd = open (sym, O_WRONLY | O_NOFOLLOW | O_CREAT, 0);
if (fd >= 0)
{
close (fd);
result |= 4;
}
}
if (unlink (sym) != 0 || symlink (".", sym) != 0)
result |= 2;
else
{
int fd = open (sym, O_RDONLY | O_NOFOLLOW);
if (fd >= 0)
{
close (fd);
result |= 4;
}
}
unlink (sym);
}
#endif
{
static char const file[] = "confdefs.h";
int fd = open (file, O_RDONLY | O_NOATIME);
if (fd < 0)
result |= 8;
else
{
struct stat st0;
if (fstat (fd, &st0) != 0)
result |= 16;
else
{
char c;
sleep (1);
if (read (fd, &c, 1) != 1)
result |= 24;
else
{
if (close (fd) != 0)
result |= 32;
else
{
struct stat st1;
if (stat (file, &st1) != 0)
result |= 40;
else
if (st0.st_atime != st1.st_atime)
result |= 64;
}
}
}
}
}
return result;]])],
[gl_cv_header_working_fcntl_h=yes],
[case $? in #(
4) gl_cv_header_working_fcntl_h='no (bad O_NOFOLLOW)';; #(
64) gl_cv_header_working_fcntl_h='no (bad O_NOATIME)';; #(
68) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #(
*) gl_cv_header_working_fcntl_h='no';;
esac],
[gl_cv_header_working_fcntl_h=cross-compiling])])
case $gl_cv_header_working_fcntl_h in #(
*O_NOATIME* | no | cross-compiling) ac_val=0;; #(
*) ac_val=1;;
esac
AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOATIME], [$ac_val],
[Define to 1 if O_NOATIME works.])
case $gl_cv_header_working_fcntl_h in #(
*O_NOFOLLOW* | no | cross-compiling) ac_val=0;; #(
*) ac_val=1;;
esac
AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOFOLLOW], [$ac_val],
[Define to 1 if O_NOFOLLOW works.])
])

95
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# fcntl.m4 serial 5
dnl Copyright (C) 2009-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
# For now, this module ensures that fcntl()
# - supports F_DUPFD correctly
# - supports or emulates F_DUPFD_CLOEXEC
# - supports F_GETFD
# Still to be ported to mingw:
# - F_SETFD
# - F_GETFL, F_SETFL
# - F_GETOWN, F_SETOWN
# - F_GETLK, F_SETLK, F_SETLKW
AC_DEFUN([gl_FUNC_FCNTL],
[
dnl Persuade glibc to expose F_DUPFD_CLOEXEC.
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
AC_REQUIRE([AC_CANONICAL_HOST])
AC_CHECK_FUNCS_ONCE([fcntl])
if test $ac_cv_func_fcntl = no; then
gl_REPLACE_FCNTL
else
dnl cygwin 1.5.x F_DUPFD has wrong errno, and allows negative target
dnl haiku alpha 2 F_DUPFD has wrong errno
AC_CACHE_CHECK([whether fcntl handles F_DUPFD correctly],
[gl_cv_func_fcntl_f_dupfd_works],
[AC_RUN_IFELSE([AC_LANG_PROGRAM([[
#include <fcntl.h>
#include <errno.h>
]], [[int result = 0;
if (fcntl (0, F_DUPFD, -1) != -1) result |= 1;
if (errno != EINVAL) result |= 2;
return result;
]])],
[gl_cv_func_fcntl_f_dupfd_works=yes],
[gl_cv_func_fcntl_f_dupfd_works=no],
[# Guess that it works on glibc systems
case $host_os in #((
*-gnu*) gl_cv_func_fcntl_f_dupfd_works="guessing yes";;
*) gl_cv_func_fcntl_f_dupfd_works="guessing no";;
esac])])
case $gl_cv_func_fcntl_f_dupfd_works in
*yes) ;;
*) gl_REPLACE_FCNTL
AC_DEFINE([FCNTL_DUPFD_BUGGY], [1], [Define this to 1 if F_DUPFD
behavior does not match POSIX]) ;;
esac
dnl Many systems lack F_DUPFD_CLOEXEC
AC_CACHE_CHECK([whether fcntl understands F_DUPFD_CLOEXEC],
[gl_cv_func_fcntl_f_dupfd_cloexec],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <fcntl.h>
#ifndef F_DUPFD_CLOEXEC
choke me
#endif
]])],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#ifdef __linux__
/* The Linux kernel only added F_DUPFD_CLOEXEC in 2.6.24, so we always replace
it to support the semantics on older kernels that failed with EINVAL. */
choke me
#endif
]])],
[gl_cv_func_fcntl_f_dupfd_cloexec=yes],
[gl_cv_func_fcntl_f_dupfd_cloexec="needs runtime check"])],
[gl_cv_func_fcntl_f_dupfd_cloexec=no])])
if test "$gl_cv_func_fcntl_f_dupfd_cloexec" != yes; then
gl_REPLACE_FCNTL
dnl No witness macro needed for this bug.
fi
fi
dnl Replace fcntl() for supporting the gnulib-defined fchdir() function,
dnl to keep fchdir's bookkeeping up-to-date.
m4_ifdef([gl_FUNC_FCHDIR], [
gl_TEST_FCHDIR
if test $HAVE_FCHDIR = 0; then
gl_REPLACE_FCNTL
fi
])
])
AC_DEFUN([gl_REPLACE_FCNTL],
[
AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
AC_CHECK_FUNCS_ONCE([fcntl])
if test $ac_cv_func_fcntl = no; then
HAVE_FCNTL=0
else
REPLACE_FCNTL=1
fi
])

50
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# serial 15
# Configure fcntl.h.
dnl Copyright (C) 2006-2007, 2009-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Written by Paul Eggert.
AC_DEFUN([gl_FCNTL_H],
[
AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
AC_REQUIRE([gl_FCNTL_O_FLAGS])
gl_NEXT_HEADERS([fcntl.h])
dnl Ensure the type pid_t gets defined.
AC_REQUIRE([AC_TYPE_PID_T])
dnl Ensure the type mode_t gets defined.
AC_REQUIRE([AC_TYPE_MODE_T])
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use, if it is not common
dnl enough to be declared everywhere.
gl_WARN_ON_USE_PREPARE([[#include <fcntl.h>
]], [fcntl openat])
])
AC_DEFUN([gl_FCNTL_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_FCNTL_H_DEFAULTS],
[
GNULIB_FCNTL=0; AC_SUBST([GNULIB_FCNTL])
GNULIB_NONBLOCKING=0; AC_SUBST([GNULIB_NONBLOCKING])
GNULIB_OPEN=0; AC_SUBST([GNULIB_OPEN])
GNULIB_OPENAT=0; AC_SUBST([GNULIB_OPENAT])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_FCNTL=1; AC_SUBST([HAVE_FCNTL])
HAVE_OPENAT=1; AC_SUBST([HAVE_OPENAT])
REPLACE_FCNTL=0; AC_SUBST([REPLACE_FCNTL])
REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN])
REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT])
])

17
gl/m4/getdtablesize.m4 Normal file
View File

@@ -0,0 +1,17 @@
# getdtablesize.m4 serial 4
dnl Copyright (C) 2008-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_GETDTABLESIZE],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
AC_CHECK_FUNCS_ONCE([getdtablesize])
if test $ac_cv_func_getdtablesize != yes; then
HAVE_GETDTABLESIZE=0
fi
])
# Prerequisites of lib/getdtablesize.c.
AC_DEFUN([gl_PREREQ_GETDTABLESIZE], [:])

3
gl/m4/gnulib-cache.m4
View File

@@ -27,11 +27,12 @@
# Specification in the form of a command-line invocation:
# gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --tests-base=gl/tests --aux-dir=build-aux --no-conditional-dependencies --no-libtool --macro-prefix=gl gettime hash-pjw-bare memmem
# gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --tests-base=gl/tests --aux-dir=build-aux --no-conditional-dependencies --no-libtool --macro-prefix=gl cloexec gettime hash-pjw-bare memmem
# Specification in the form of a few gnulib-tool.m4 macro invocations:
gl_LOCAL_DIR([])
gl_MODULES([
cloexec
gettime
hash-pjw-bare
memmem

80
gl/m4/gnulib-comp.m4
View File

@@ -39,9 +39,16 @@ AC_DEFUN([gl_EARLY],
m4_pattern_allow([^gl_LTLIBOBJS$])dnl a variable
AC_REQUIRE([gl_PROG_AR_RANLIB])
# Code from module clock-time:
# Code from module cloexec:
# Code from module close:
# Code from module dup2:
# Code from module extensions:
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
# Code from module extern-inline:
# Code from module fcntl:
# Code from module fcntl-h:
# Code from module fd-hook:
# Code from module getdtablesize:
# Code from module gettime:
# Code from module gettimeofday:
# Code from module hash-pjw-bare:
@@ -49,16 +56,22 @@ AC_DEFUN([gl_EARLY],
# Code from module memchr:
# Code from module memmem:
# Code from module memmem-simple:
# Code from module msvc-inval:
# Code from module msvc-nothrow:
# Code from module multiarch:
# Code from module snippet/arg-nonnull:
# Code from module snippet/c++defs:
# Code from module snippet/warn-on-use:
# Code from module ssize_t:
# Code from module stdbool:
# Code from module stddef:
# Code from module stdint:
# Code from module string:
# Code from module sys_time:
# Code from module sys_types:
# Code from module time:
# Code from module timespec:
# Code from module unistd:
])
# This macro should be invoked from ./configure.ac, in the section
@@ -78,7 +91,31 @@ AC_DEFUN([gl_INIT],
gl_COMMON
gl_source_base='gl'
gl_CLOCK_TIME
gl_MODULE_INDICATOR_FOR_TESTS([cloexec])
gl_FUNC_CLOSE
if test $REPLACE_CLOSE = 1; then
AC_LIBOBJ([close])
fi
gl_UNISTD_MODULE_INDICATOR([close])
gl_FUNC_DUP2
if test $HAVE_DUP2 = 0 || test $REPLACE_DUP2 = 1; then
AC_LIBOBJ([dup2])
gl_PREREQ_DUP2
fi
gl_UNISTD_MODULE_INDICATOR([dup2])
AC_REQUIRE([gl_EXTERN_INLINE])
gl_FUNC_FCNTL
if test $HAVE_FCNTL = 0 || test $REPLACE_FCNTL = 1; then
AC_LIBOBJ([fcntl])
fi
gl_FCNTL_MODULE_INDICATOR([fcntl])
gl_FCNTL_H
gl_FUNC_GETDTABLESIZE
if test $HAVE_GETDTABLESIZE = 0; then
AC_LIBOBJ([getdtablesize])
gl_PREREQ_GETDTABLESIZE
fi
gl_UNISTD_MODULE_INDICATOR([getdtablesize])
gl_GETTIME
gl_FUNC_GETTIMEOFDAY
if test $HAVE_GETTIMEOFDAY = 0 || test $REPLACE_GETTIMEOFDAY = 1; then
@@ -101,14 +138,27 @@ AC_DEFUN([gl_INIT],
AC_LIBOBJ([memmem])
fi
gl_STRING_MODULE_INDICATOR([memmem])
gl_MSVC_INVAL
if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
AC_LIBOBJ([msvc-inval])
fi
gl_MSVC_NOTHROW
if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
AC_LIBOBJ([msvc-nothrow])
fi
gl_MULTIARCH
gt_TYPE_SSIZE_T
AM_STDBOOL_H
gl_STDDEF_H
gl_STDINT_H
gl_HEADER_STRING_H
gl_HEADER_SYS_TIME_H
AC_PROG_MKDIR_P
gl_SYS_TYPES_H
AC_PROG_MKDIR_P
gl_HEADER_TIME_H
gl_TIMESPEC
gl_UNISTD_H
# End of code from modules
m4_ifval(gl_LIBSOURCES_LIST, [
m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ ||
@@ -252,6 +302,15 @@ AC_DEFUN([gl_FILE_LIST], [
build-aux/snippet/arg-nonnull.h
build-aux/snippet/c++defs.h
build-aux/snippet/warn-on-use.h
lib/cloexec.c
lib/cloexec.h
lib/close.c
lib/dup2.c
lib/fcntl.c
lib/fcntl.in.h
lib/fd-hook.c
lib/fd-hook.h
lib/getdtablesize.c
lib/gettime.c
lib/gettimeofday.c
lib/hash-pjw-bare.c
@@ -259,18 +318,32 @@ AC_DEFUN([gl_FILE_LIST], [
lib/memchr.c
lib/memchr.valgrind
lib/memmem.c
lib/msvc-inval.c
lib/msvc-inval.h
lib/msvc-nothrow.c
lib/msvc-nothrow.h
lib/stdbool.in.h
lib/stddef.in.h
lib/stdint.in.h
lib/str-two-way.h
lib/string.in.h
lib/sys_time.in.h
lib/sys_types.in.h
lib/time.in.h
lib/timespec.c
lib/timespec.h
lib/unistd.c
lib/unistd.in.h
m4/00gnulib.m4
m4/clock_time.m4
m4/close.m4
m4/dup2.m4
m4/extensions.m4
m4/extern-inline.m4
m4/fcntl-o.m4
m4/fcntl.m4
m4/fcntl_h.m4
m4/getdtablesize.m4
m4/gettime.m4
m4/gettimeofday.m4
m4/gnulib-common.m4
@@ -279,14 +352,21 @@ AC_DEFUN([gl_FILE_LIST], [
m4/memchr.m4
m4/memmem.m4
m4/mmap-anon.m4
m4/msvc-inval.m4
m4/msvc-nothrow.m4
m4/multiarch.m4
m4/off_t.m4
m4/ssize_t.m4
m4/stdbool.m4
m4/stddef_h.m4
m4/stdint.m4
m4/string_h.m4
m4/sys_socket_h.m4
m4/sys_time_h.m4
m4/sys_types_h.m4
m4/time_h.m4
m4/timespec.m4
m4/unistd_h.m4
m4/warn-on-use.m4
m4/wchar_t.m4
])

19
gl/m4/msvc-inval.m4 Normal file
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@@ -0,0 +1,19 @@
# msvc-inval.m4 serial 1
dnl Copyright (C) 2011-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_MSVC_INVAL],
[
AC_CHECK_FUNCS_ONCE([_set_invalid_parameter_handler])
if test $ac_cv_func__set_invalid_parameter_handler = yes; then
HAVE_MSVC_INVALID_PARAMETER_HANDLER=1
AC_DEFINE([HAVE_MSVC_INVALID_PARAMETER_HANDLER], [1],
[Define to 1 on MSVC platforms that have the "invalid parameter handler"
concept.])
else
HAVE_MSVC_INVALID_PARAMETER_HANDLER=0
fi
AC_SUBST([HAVE_MSVC_INVALID_PARAMETER_HANDLER])
])

10
gl/m4/msvc-nothrow.m4 Normal file
View File

@@ -0,0 +1,10 @@
# msvc-nothrow.m4 serial 1
dnl Copyright (C) 2011-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_MSVC_NOTHROW],
[
AC_REQUIRE([gl_MSVC_INVAL])
])

18
gl/m4/off_t.m4 Normal file
View File

@@ -0,0 +1,18 @@
# off_t.m4 serial 1
dnl Copyright (C) 2012-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Check whether to override the 'off_t' type.
dnl Set WINDOWS_64_BIT_OFF_T.
AC_DEFUN([gl_TYPE_OFF_T],
[
m4_ifdef([gl_LARGEFILE], [
AC_REQUIRE([gl_LARGEFILE])
], [
WINDOWS_64_BIT_OFF_T=0
])
AC_SUBST([WINDOWS_64_BIT_OFF_T])
])

23
gl/m4/ssize_t.m4 Normal file
View File

@@ -0,0 +1,23 @@
# ssize_t.m4 serial 5 (gettext-0.18.2)
dnl Copyright (C) 2001-2003, 2006, 2010-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Bruno Haible.
dnl Test whether ssize_t is defined.
AC_DEFUN([gt_TYPE_SSIZE_T],
[
AC_CACHE_CHECK([for ssize_t], [gt_cv_ssize_t],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/types.h>]],
[[int x = sizeof (ssize_t *) + sizeof (ssize_t);
return !x;]])],
[gt_cv_ssize_t=yes], [gt_cv_ssize_t=no])])
if test $gt_cv_ssize_t = no; then
AC_DEFINE([ssize_t], [int],
[Define as a signed type of the same size as size_t.])
fi
])

100
gl/m4/stdbool.m4 Normal file
View File

@@ -0,0 +1,100 @@
# Check for stdbool.h that conforms to C99.
dnl Copyright (C) 2002-2006, 2009-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
#serial 5
# Prepare for substituting <stdbool.h> if it is not supported.
AC_DEFUN([AM_STDBOOL_H],
[
AC_REQUIRE([AC_CHECK_HEADER_STDBOOL])
# Define two additional variables used in the Makefile substitution.
if test "$ac_cv_header_stdbool_h" = yes; then
STDBOOL_H=''
else
STDBOOL_H='stdbool.h'
fi
AC_SUBST([STDBOOL_H])
AM_CONDITIONAL([GL_GENERATE_STDBOOL_H], [test -n "$STDBOOL_H"])
if test "$ac_cv_type__Bool" = yes; then
HAVE__BOOL=1
else
HAVE__BOOL=0
fi
AC_SUBST([HAVE__BOOL])
])
# AM_STDBOOL_H will be renamed to gl_STDBOOL_H in the future.
AC_DEFUN([gl_STDBOOL_H], [AM_STDBOOL_H])
# This version of the macro is needed in autoconf <= 2.68.
AC_DEFUN([AC_CHECK_HEADER_STDBOOL],
[AC_CACHE_CHECK([for stdbool.h that conforms to C99],
[ac_cv_header_stdbool_h],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[
#include <stdbool.h>
#ifndef bool
"error: bool is not defined"
#endif
#ifndef false
"error: false is not defined"
#endif
#if false
"error: false is not 0"
#endif
#ifndef true
"error: true is not defined"
#endif
#if true != 1
"error: true is not 1"
#endif
#ifndef __bool_true_false_are_defined
"error: __bool_true_false_are_defined is not defined"
#endif
struct s { _Bool s: 1; _Bool t; } s;
char a[true == 1 ? 1 : -1];
char b[false == 0 ? 1 : -1];
char c[__bool_true_false_are_defined == 1 ? 1 : -1];
char d[(bool) 0.5 == true ? 1 : -1];
/* See body of main program for 'e'. */
char f[(_Bool) 0.0 == false ? 1 : -1];
char g[true];
char h[sizeof (_Bool)];
char i[sizeof s.t];
enum { j = false, k = true, l = false * true, m = true * 256 };
/* The following fails for
HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */
_Bool n[m];
char o[sizeof n == m * sizeof n[0] ? 1 : -1];
char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
/* Catch a bug in an HP-UX C compiler. See
http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
*/
_Bool q = true;
_Bool *pq = &q;
]],
[[
bool e = &s;
*pq |= q;
*pq |= ! q;
/* Refer to every declared value, to avoid compiler optimizations. */
return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+ !m + !n + !o + !p + !q + !pq);
]])],
[ac_cv_header_stdbool_h=yes],
[ac_cv_header_stdbool_h=no])])
AC_CHECK_TYPES([_Bool])
])

24
gl/m4/sys_types_h.m4 Normal file
View File

@@ -0,0 +1,24 @@
# sys_types_h.m4 serial 4
dnl Copyright (C) 2011-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_SYS_TYPES_H],
[
AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS])
gl_NEXT_HEADERS([sys/types.h])
dnl Ensure the type pid_t gets defined.
AC_REQUIRE([AC_TYPE_PID_T])
dnl Ensure the type mode_t gets defined.
AC_REQUIRE([AC_TYPE_MODE_T])
dnl Whether to override the 'off_t' type.
AC_REQUIRE([gl_TYPE_OFF_T])
])
AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS],
[
])

186
gl/m4/unistd_h.m4 Normal file
View File

@@ -0,0 +1,186 @@
# unistd_h.m4 serial 66
dnl Copyright (C) 2006-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Written by Simon Josefsson, Bruno Haible.
AC_DEFUN([gl_UNISTD_H],
[
dnl Use AC_REQUIRE here, so that the default behavior below is expanded
dnl once only, before all statements that occur in other macros.
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
gl_CHECK_NEXT_HEADERS([unistd.h])
if test $ac_cv_header_unistd_h = yes; then
HAVE_UNISTD_H=1
else
HAVE_UNISTD_H=0
fi
AC_SUBST([HAVE_UNISTD_H])
dnl Ensure the type pid_t gets defined.
AC_REQUIRE([AC_TYPE_PID_T])
dnl Determine WINDOWS_64_BIT_OFF_T.
AC_REQUIRE([gl_TYPE_OFF_T])
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use.
gl_WARN_ON_USE_PREPARE([[
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
/* Some systems declare various items in the wrong headers. */
#if !(defined __GLIBC__ && !defined __UCLIBC__)
# include <fcntl.h>
# include <stdio.h>
# include <stdlib.h>
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
# include <io.h>
# endif
#endif
]], [chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir fchownat
fdatasync fsync ftruncate getcwd getdomainname getdtablesize getgroups
gethostname getlogin getlogin_r getpagesize
getusershell setusershell endusershell
group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite
readlink readlinkat rmdir sethostname sleep symlink symlinkat ttyname_r
unlink unlinkat usleep])
])
AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_UNISTD_H_DEFAULTS],
[
GNULIB_CHDIR=0; AC_SUBST([GNULIB_CHDIR])
GNULIB_CHOWN=0; AC_SUBST([GNULIB_CHOWN])
GNULIB_CLOSE=0; AC_SUBST([GNULIB_CLOSE])
GNULIB_DUP=0; AC_SUBST([GNULIB_DUP])
GNULIB_DUP2=0; AC_SUBST([GNULIB_DUP2])
GNULIB_DUP3=0; AC_SUBST([GNULIB_DUP3])
GNULIB_ENVIRON=0; AC_SUBST([GNULIB_ENVIRON])
GNULIB_EUIDACCESS=0; AC_SUBST([GNULIB_EUIDACCESS])
GNULIB_FACCESSAT=0; AC_SUBST([GNULIB_FACCESSAT])
GNULIB_FCHDIR=0; AC_SUBST([GNULIB_FCHDIR])
GNULIB_FCHOWNAT=0; AC_SUBST([GNULIB_FCHOWNAT])
GNULIB_FDATASYNC=0; AC_SUBST([GNULIB_FDATASYNC])
GNULIB_FSYNC=0; AC_SUBST([GNULIB_FSYNC])
GNULIB_FTRUNCATE=0; AC_SUBST([GNULIB_FTRUNCATE])
GNULIB_GETCWD=0; AC_SUBST([GNULIB_GETCWD])
GNULIB_GETDOMAINNAME=0; AC_SUBST([GNULIB_GETDOMAINNAME])
GNULIB_GETDTABLESIZE=0; AC_SUBST([GNULIB_GETDTABLESIZE])
GNULIB_GETGROUPS=0; AC_SUBST([GNULIB_GETGROUPS])
GNULIB_GETHOSTNAME=0; AC_SUBST([GNULIB_GETHOSTNAME])
GNULIB_GETLOGIN=0; AC_SUBST([GNULIB_GETLOGIN])
GNULIB_GETLOGIN_R=0; AC_SUBST([GNULIB_GETLOGIN_R])
GNULIB_GETPAGESIZE=0; AC_SUBST([GNULIB_GETPAGESIZE])
GNULIB_GETUSERSHELL=0; AC_SUBST([GNULIB_GETUSERSHELL])
GNULIB_GROUP_MEMBER=0; AC_SUBST([GNULIB_GROUP_MEMBER])
GNULIB_ISATTY=0; AC_SUBST([GNULIB_ISATTY])
GNULIB_LCHOWN=0; AC_SUBST([GNULIB_LCHOWN])
GNULIB_LINK=0; AC_SUBST([GNULIB_LINK])
GNULIB_LINKAT=0; AC_SUBST([GNULIB_LINKAT])
GNULIB_LSEEK=0; AC_SUBST([GNULIB_LSEEK])
GNULIB_PIPE=0; AC_SUBST([GNULIB_PIPE])
GNULIB_PIPE2=0; AC_SUBST([GNULIB_PIPE2])
GNULIB_PREAD=0; AC_SUBST([GNULIB_PREAD])
GNULIB_PWRITE=0; AC_SUBST([GNULIB_PWRITE])
GNULIB_READ=0; AC_SUBST([GNULIB_READ])
GNULIB_READLINK=0; AC_SUBST([GNULIB_READLINK])
GNULIB_READLINKAT=0; AC_SUBST([GNULIB_READLINKAT])
GNULIB_RMDIR=0; AC_SUBST([GNULIB_RMDIR])
GNULIB_SETHOSTNAME=0; AC_SUBST([GNULIB_SETHOSTNAME])
GNULIB_SLEEP=0; AC_SUBST([GNULIB_SLEEP])
GNULIB_SYMLINK=0; AC_SUBST([GNULIB_SYMLINK])
GNULIB_SYMLINKAT=0; AC_SUBST([GNULIB_SYMLINKAT])
GNULIB_TTYNAME_R=0; AC_SUBST([GNULIB_TTYNAME_R])
GNULIB_UNISTD_H_NONBLOCKING=0; AC_SUBST([GNULIB_UNISTD_H_NONBLOCKING])
GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
GNULIB_UNLINK=0; AC_SUBST([GNULIB_UNLINK])
GNULIB_UNLINKAT=0; AC_SUBST([GNULIB_UNLINKAT])
GNULIB_USLEEP=0; AC_SUBST([GNULIB_USLEEP])
GNULIB_WRITE=0; AC_SUBST([GNULIB_WRITE])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_CHOWN=1; AC_SUBST([HAVE_CHOWN])
HAVE_DUP2=1; AC_SUBST([HAVE_DUP2])
HAVE_DUP3=1; AC_SUBST([HAVE_DUP3])
HAVE_EUIDACCESS=1; AC_SUBST([HAVE_EUIDACCESS])
HAVE_FACCESSAT=1; AC_SUBST([HAVE_FACCESSAT])
HAVE_FCHDIR=1; AC_SUBST([HAVE_FCHDIR])
HAVE_FCHOWNAT=1; AC_SUBST([HAVE_FCHOWNAT])
HAVE_FDATASYNC=1; AC_SUBST([HAVE_FDATASYNC])
HAVE_FSYNC=1; AC_SUBST([HAVE_FSYNC])
HAVE_FTRUNCATE=1; AC_SUBST([HAVE_FTRUNCATE])
HAVE_GETDTABLESIZE=1; AC_SUBST([HAVE_GETDTABLESIZE])
HAVE_GETGROUPS=1; AC_SUBST([HAVE_GETGROUPS])
HAVE_GETHOSTNAME=1; AC_SUBST([HAVE_GETHOSTNAME])
HAVE_GETLOGIN=1; AC_SUBST([HAVE_GETLOGIN])
HAVE_GETPAGESIZE=1; AC_SUBST([HAVE_GETPAGESIZE])
HAVE_GROUP_MEMBER=1; AC_SUBST([HAVE_GROUP_MEMBER])
HAVE_LCHOWN=1; AC_SUBST([HAVE_LCHOWN])
HAVE_LINK=1; AC_SUBST([HAVE_LINK])
HAVE_LINKAT=1; AC_SUBST([HAVE_LINKAT])
HAVE_PIPE=1; AC_SUBST([HAVE_PIPE])
HAVE_PIPE2=1; AC_SUBST([HAVE_PIPE2])
HAVE_PREAD=1; AC_SUBST([HAVE_PREAD])
HAVE_PWRITE=1; AC_SUBST([HAVE_PWRITE])
HAVE_READLINK=1; AC_SUBST([HAVE_READLINK])
HAVE_READLINKAT=1; AC_SUBST([HAVE_READLINKAT])
HAVE_SETHOSTNAME=1; AC_SUBST([HAVE_SETHOSTNAME])
HAVE_SLEEP=1; AC_SUBST([HAVE_SLEEP])
HAVE_SYMLINK=1; AC_SUBST([HAVE_SYMLINK])
HAVE_SYMLINKAT=1; AC_SUBST([HAVE_SYMLINKAT])
HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT])
HAVE_USLEEP=1; AC_SUBST([HAVE_USLEEP])
HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON])
HAVE_DECL_FCHDIR=1; AC_SUBST([HAVE_DECL_FCHDIR])
HAVE_DECL_FDATASYNC=1; AC_SUBST([HAVE_DECL_FDATASYNC])
HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])
HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
HAVE_DECL_SETHOSTNAME=1; AC_SUBST([HAVE_DECL_SETHOSTNAME])
HAVE_DECL_TTYNAME_R=1; AC_SUBST([HAVE_DECL_TTYNAME_R])
HAVE_OS_H=0; AC_SUBST([HAVE_OS_H])
HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H])
REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN])
REPLACE_CLOSE=0; AC_SUBST([REPLACE_CLOSE])
REPLACE_DUP=0; AC_SUBST([REPLACE_DUP])
REPLACE_DUP2=0; AC_SUBST([REPLACE_DUP2])
REPLACE_FCHOWNAT=0; AC_SUBST([REPLACE_FCHOWNAT])
REPLACE_FTRUNCATE=0; AC_SUBST([REPLACE_FTRUNCATE])
REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD])
REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME])
REPLACE_GETLOGIN_R=0; AC_SUBST([REPLACE_GETLOGIN_R])
REPLACE_GETGROUPS=0; AC_SUBST([REPLACE_GETGROUPS])
REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE])
REPLACE_ISATTY=0; AC_SUBST([REPLACE_ISATTY])
REPLACE_LCHOWN=0; AC_SUBST([REPLACE_LCHOWN])
REPLACE_LINK=0; AC_SUBST([REPLACE_LINK])
REPLACE_LINKAT=0; AC_SUBST([REPLACE_LINKAT])
REPLACE_LSEEK=0; AC_SUBST([REPLACE_LSEEK])
REPLACE_PREAD=0; AC_SUBST([REPLACE_PREAD])
REPLACE_PWRITE=0; AC_SUBST([REPLACE_PWRITE])
REPLACE_READ=0; AC_SUBST([REPLACE_READ])
REPLACE_READLINK=0; AC_SUBST([REPLACE_READLINK])
REPLACE_RMDIR=0; AC_SUBST([REPLACE_RMDIR])
REPLACE_SLEEP=0; AC_SUBST([REPLACE_SLEEP])
REPLACE_SYMLINK=0; AC_SUBST([REPLACE_SYMLINK])
REPLACE_TTYNAME_R=0; AC_SUBST([REPLACE_TTYNAME_R])
REPLACE_UNLINK=0; AC_SUBST([REPLACE_UNLINK])
REPLACE_UNLINKAT=0; AC_SUBST([REPLACE_UNLINKAT])
REPLACE_USLEEP=0; AC_SUBST([REPLACE_USLEEP])
REPLACE_WRITE=0; AC_SUBST([REPLACE_WRITE])
UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H])
UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0;
AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS])
])

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/* Invalid parameter handler for MSVC runtime libraries.
Copyright (C) 2011-2013 Free Software Foundation, Inc.
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, 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 <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include "msvc-inval.h"
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER \
&& !(MSVC_INVALID_PARAMETER_HANDLING == SANE_LIBRARY_HANDLING)
/* Get _invalid_parameter_handler type and _set_invalid_parameter_handler
declaration. */
# include <stdlib.h>
# if MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
static void cdecl
gl_msvc_invalid_parameter_handler (const wchar_t *expression,
const wchar_t *function,
const wchar_t *file,
unsigned int line,
uintptr_t dummy)
{
}
# else
/* Get declarations of the native Windows API functions. */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# if defined _MSC_VER
static void cdecl
gl_msvc_invalid_parameter_handler (const wchar_t *expression,
const wchar_t *function,
const wchar_t *file,
unsigned int line,
uintptr_t dummy)
{
RaiseException (STATUS_GNULIB_INVALID_PARAMETER, 0, 0, NULL);
}
# else
/* An index to thread-local storage. */
static DWORD tls_index;
static int tls_initialized /* = 0 */;
/* Used as a fallback only. */
static struct gl_msvc_inval_per_thread not_per_thread;
struct gl_msvc_inval_per_thread *
gl_msvc_inval_current (void)
{
if (!tls_initialized)
{
tls_index = TlsAlloc ();
tls_initialized = 1;
}
if (tls_index == TLS_OUT_OF_INDEXES)
/* TlsAlloc had failed. */
return &not_per_thread;
else
{
struct gl_msvc_inval_per_thread *pointer =
(struct gl_msvc_inval_per_thread *) TlsGetValue (tls_index);
if (pointer == NULL)
{
/* First call. Allocate a new 'struct gl_msvc_inval_per_thread'. */
pointer =
(struct gl_msvc_inval_per_thread *)
malloc (sizeof (struct gl_msvc_inval_per_thread));
if (pointer == NULL)
/* Could not allocate memory. Use the global storage. */
pointer = &not_per_thread;
TlsSetValue (tls_index, pointer);
}
return pointer;
}
}
static void cdecl
gl_msvc_invalid_parameter_handler (const wchar_t *expression,
const wchar_t *function,
const wchar_t *file,
unsigned int line,
uintptr_t dummy)
{
struct gl_msvc_inval_per_thread *current = gl_msvc_inval_current ();
if (current->restart_valid)
longjmp (current->restart, 1);
else
/* An invalid parameter notification from outside the gnulib code.
Give the caller a chance to intervene. */
RaiseException (STATUS_GNULIB_INVALID_PARAMETER, 0, 0, NULL);
}
# endif
# endif
static int gl_msvc_inval_initialized /* = 0 */;
void
gl_msvc_inval_ensure_handler (void)
{
if (gl_msvc_inval_initialized == 0)
{
_set_invalid_parameter_handler (gl_msvc_invalid_parameter_handler);
gl_msvc_inval_initialized = 1;
}
}
#endif

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/* Invalid parameter handler for MSVC runtime libraries.
Copyright (C) 2011-2013 Free Software Foundation, Inc.
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, 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 <http://www.gnu.org/licenses/>. */
#ifndef _MSVC_INVAL_H
#define _MSVC_INVAL_H
/* With MSVC runtime libraries with the "invalid parameter handler" concept,
functions like fprintf(), dup2(), or close() crash when the caller passes
an invalid argument. But POSIX wants error codes (such as EINVAL or EBADF)
instead.
This file defines macros that turn such an invalid parameter notification
into a non-local exit. An error code can then be produced at the target
of this exit. You can thus write code like
TRY_MSVC_INVAL
{
<Code that can trigger an invalid parameter notification
but does not do 'return', 'break', 'continue', nor 'goto'.>
}
CATCH_MSVC_INVAL
{
<Code that handles an invalid parameter notification
but does not do 'return', 'break', 'continue', nor 'goto'.>
}
DONE_MSVC_INVAL;
This entire block expands to a single statement.
The handling of invalid parameters can be done in three ways:
* The default way, which is reasonable for programs (not libraries):
AC_DEFINE([MSVC_INVALID_PARAMETER_HANDLING], [DEFAULT_HANDLING])
* The way for libraries that make "hairy" calls (like close(-1), or
fclose(fp) where fileno(fp) is closed, or simply getdtablesize()):
AC_DEFINE([MSVC_INVALID_PARAMETER_HANDLING], [HAIRY_LIBRARY_HANDLING])
* The way for libraries that make no "hairy" calls:
AC_DEFINE([MSVC_INVALID_PARAMETER_HANDLING], [SANE_LIBRARY_HANDLING])
*/
#define DEFAULT_HANDLING 0
#define HAIRY_LIBRARY_HANDLING 1
#define SANE_LIBRARY_HANDLING 2
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER \
&& !(MSVC_INVALID_PARAMETER_HANDLING == SANE_LIBRARY_HANDLING)
/* A native Windows platform with the "invalid parameter handler" concept,
and either DEFAULT_HANDLING or HAIRY_LIBRARY_HANDLING. */
# if MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
/* Default handling. */
# ifdef __cplusplus
extern "C" {
# endif
/* Ensure that the invalid parameter handler in installed that just returns.
Because we assume no other part of the program installs a different
invalid parameter handler, this solution is multithread-safe. */
extern void gl_msvc_inval_ensure_handler (void);
# ifdef __cplusplus
}
# endif
# define TRY_MSVC_INVAL \
do \
{ \
gl_msvc_inval_ensure_handler (); \
if (1)
# define CATCH_MSVC_INVAL \
else
# define DONE_MSVC_INVAL \
} \
while (0)
# else
/* Handling for hairy libraries. */
# include <excpt.h>
/* Gnulib can define its own status codes, as described in the page
"Raising Software Exceptions" on microsoft.com
<http://msdn.microsoft.com/en-us/library/het71c37.aspx>.
Our status codes are composed of
- 0xE0000000, mandatory for all user-defined status codes,
- 0x474E550, a API identifier ("GNU"),
- 0, 1, 2, ..., used to distinguish different status codes from the
same API. */
# define STATUS_GNULIB_INVALID_PARAMETER (0xE0000000 + 0x474E550 + 0)
# if defined _MSC_VER
/* A compiler that supports __try/__except, as described in the page
"try-except statement" on microsoft.com
<http://msdn.microsoft.com/en-us/library/s58ftw19.aspx>.
With __try/__except, we can use the multithread-safe exception handling. */
# ifdef __cplusplus
extern "C" {
# endif
/* Ensure that the invalid parameter handler in installed that raises a
software exception with code STATUS_GNULIB_INVALID_PARAMETER.
Because we assume no other part of the program installs a different
invalid parameter handler, this solution is multithread-safe. */
extern void gl_msvc_inval_ensure_handler (void);
# ifdef __cplusplus
}
# endif
# define TRY_MSVC_INVAL \
do \
{ \
gl_msvc_inval_ensure_handler (); \
__try
# define CATCH_MSVC_INVAL \
__except (GetExceptionCode () == STATUS_GNULIB_INVALID_PARAMETER \
? EXCEPTION_EXECUTE_HANDLER \
: EXCEPTION_CONTINUE_SEARCH)
# define DONE_MSVC_INVAL \
} \
while (0)
# else
/* Any compiler.
We can only use setjmp/longjmp. */
# include <setjmp.h>
# ifdef __cplusplus
extern "C" {
# endif
struct gl_msvc_inval_per_thread
{
/* The restart that will resume execution at the code between
CATCH_MSVC_INVAL and DONE_MSVC_INVAL. It is enabled only between
TRY_MSVC_INVAL and CATCH_MSVC_INVAL. */
jmp_buf restart;
/* Tells whether the contents of restart is valid. */
int restart_valid;
};
/* Ensure that the invalid parameter handler in installed that passes
control to the gl_msvc_inval_restart if it is valid, or raises a
software exception with code STATUS_GNULIB_INVALID_PARAMETER otherwise.
Because we assume no other part of the program installs a different
invalid parameter handler, this solution is multithread-safe. */
extern void gl_msvc_inval_ensure_handler (void);
/* Return a pointer to the per-thread data for the current thread. */
extern struct gl_msvc_inval_per_thread *gl_msvc_inval_current (void);
# ifdef __cplusplus
}
# endif
# define TRY_MSVC_INVAL \
do \
{ \
struct gl_msvc_inval_per_thread *msvc_inval_current; \
gl_msvc_inval_ensure_handler (); \
msvc_inval_current = gl_msvc_inval_current (); \
/* First, initialize gl_msvc_inval_restart. */ \
if (setjmp (msvc_inval_current->restart) == 0) \
{ \
/* Then, mark it as valid. */ \
msvc_inval_current->restart_valid = 1;
# define CATCH_MSVC_INVAL \
/* Execution completed. \
Mark gl_msvc_inval_restart as invalid. */ \
msvc_inval_current->restart_valid = 0; \
} \
else \
{ \
/* Execution triggered an invalid parameter notification. \
Mark gl_msvc_inval_restart as invalid. */ \
msvc_inval_current->restart_valid = 0;
# define DONE_MSVC_INVAL \
} \
} \
while (0)
# endif
# endif
#else
/* A platform that does not need to the invalid parameter handler,
or when SANE_LIBRARY_HANDLING is desired. */
/* The braces here avoid GCC warnings like
"warning: suggest explicit braces to avoid ambiguous 'else'". */
# define TRY_MSVC_INVAL \
do \
{ \
if (1)
# define CATCH_MSVC_INVAL \
else
# define DONE_MSVC_INVAL \
} \
while (0)
#endif
#endif /* _MSVC_INVAL_H */

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/* Wrappers that don't throw invalid parameter notifications
with MSVC runtime libraries.
Copyright (C) 2011-2013 Free Software Foundation, Inc.
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, 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 <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include "msvc-nothrow.h"
/* Get declarations of the native Windows API functions. */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include "msvc-inval.h"
#undef _get_osfhandle
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
intptr_t
_gl_nothrow_get_osfhandle (int fd)
{
intptr_t result;
TRY_MSVC_INVAL
{
result = _get_osfhandle (fd);
}
CATCH_MSVC_INVAL
{
result = (intptr_t) INVALID_HANDLE_VALUE;
}
DONE_MSVC_INVAL;
return result;
}
#endif

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/* Wrappers that don't throw invalid parameter notifications
with MSVC runtime libraries.
Copyright (C) 2011-2013 Free Software Foundation, Inc.
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, 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 <http://www.gnu.org/licenses/>. */
#ifndef _MSVC_NOTHROW_H
#define _MSVC_NOTHROW_H
/* With MSVC runtime libraries with the "invalid parameter handler" concept,
functions like fprintf(), dup2(), or close() crash when the caller passes
an invalid argument. But POSIX wants error codes (such as EINVAL or EBADF)
instead.
This file defines wrappers that turn such an invalid parameter notification
into an error code. */
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
/* Get original declaration of _get_osfhandle. */
# include <io.h>
# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
/* Override _get_osfhandle. */
extern intptr_t _gl_nothrow_get_osfhandle (int fd);
# define _get_osfhandle _gl_nothrow_get_osfhandle
# endif
#endif
#endif /* _MSVC_NOTHROW_H */

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/* Copyright (C) 2001-2003, 2006-2013 Free Software Foundation, Inc.
Written by Bruno Haible <haible@clisp.cons.org>, 2001.
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, 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 <http://www.gnu.org/licenses/>. */
#ifndef _GL_STDBOOL_H
#define _GL_STDBOOL_H
/* ISO C 99 <stdbool.h> for platforms that lack it. */
/* Usage suggestions:
Programs that use <stdbool.h> should be aware of some limitations
and standards compliance issues.
Standards compliance:
- <stdbool.h> must be #included before 'bool', 'false', 'true'
can be used.
- You cannot assume that sizeof (bool) == 1.
- Programs should not undefine the macros bool, true, and false,
as C99 lists that as an "obsolescent feature".
Limitations of this substitute, when used in a C89 environment:
- <stdbool.h> must be #included before the '_Bool' type can be used.
- You cannot assume that _Bool is a typedef; it might be a macro.
- Bit-fields of type 'bool' are not supported. Portable code
should use 'unsigned int foo : 1;' rather than 'bool foo : 1;'.
- In C99, casts and automatic conversions to '_Bool' or 'bool' are
performed in such a way that every nonzero value gets converted
to 'true', and zero gets converted to 'false'. This doesn't work
with this substitute. With this substitute, only the values 0 and 1
give the expected result when converted to _Bool' or 'bool'.
- C99 allows the use of (_Bool)0.0 in constant expressions, but
this substitute cannot always provide this property.
Also, it is suggested that programs use 'bool' rather than '_Bool';
this isn't required, but 'bool' is more common. */
/* 7.16. Boolean type and values */
/* BeOS <sys/socket.h> already #defines false 0, true 1. We use the same
definitions below, but temporarily we have to #undef them. */
#if defined __BEOS__ && !defined __HAIKU__
# include <OS.h> /* defines bool but not _Bool */
# undef false
# undef true
#endif
#ifdef __cplusplus
# define _Bool bool
# define bool bool
#else
# if defined __BEOS__ && !defined __HAIKU__
/* A compiler known to have 'bool'. */
/* If the compiler already has both 'bool' and '_Bool', we can assume they
are the same types. */
# if !@HAVE__BOOL@
typedef bool _Bool;
# endif
# else
# if !defined __GNUC__
/* If @HAVE__BOOL@:
Some HP-UX cc and AIX IBM C compiler versions have compiler bugs when
the built-in _Bool type is used. See
http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
Similar bugs are likely with other compilers as well; this file
wouldn't be used if <stdbool.h> was working.
So we override the _Bool type.
If !@HAVE__BOOL@:
Need to define _Bool ourselves. As 'signed char' or as an enum type?
Use of a typedef, with SunPRO C, leads to a stupid
"warning: _Bool is a keyword in ISO C99".
Use of an enum type, with IRIX cc, leads to a stupid
"warning(1185): enumerated type mixed with another type".
Even the existence of an enum type, without a typedef,
"Invalid enumerator. (badenum)" with HP-UX cc on Tru64.
The only benefit of the enum, debuggability, is not important
with these compilers. So use 'signed char' and no enum. */
# define _Bool signed char
# else
/* With this compiler, trust the _Bool type if the compiler has it. */
# if !@HAVE__BOOL@
/* For the sake of symbolic names in gdb, define true and false as
enum constants, not only as macros.
It is tempting to write
typedef enum { false = 0, true = 1 } _Bool;
so that gdb prints values of type 'bool' symbolically. But then
values of type '_Bool' might promote to 'int' or 'unsigned int'
(see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int'
(see ISO C 99 6.3.1.1.(2)). So add a negative value to the
enum; this ensures that '_Bool' promotes to 'int'. */
typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool;
# endif
# endif
# endif
# define bool _Bool
#endif
/* The other macros must be usable in preprocessor directives. */
#ifdef __cplusplus
# define false false
# define true true
#else
# define false 0
# define true 1
#endif
#define __bool_true_false_are_defined 1
#endif /* _GL_STDBOOL_H */

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/* Provide a more complete sys/types.h.
Copyright (C) 2011-2013 Free Software Foundation, Inc.
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, 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 <http://www.gnu.org/licenses/>. */
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@
#ifndef _@GUARD_PREFIX@_SYS_TYPES_H
/* The include_next requires a split double-inclusion guard. */
#@INCLUDE_NEXT@ @NEXT_SYS_TYPES_H@
#ifndef _@GUARD_PREFIX@_SYS_TYPES_H
#define _@GUARD_PREFIX@_SYS_TYPES_H
/* Override off_t if Large File Support is requested on native Windows. */
#if @WINDOWS_64_BIT_OFF_T@
/* Same as int64_t in <stdint.h>. */
# if defined _MSC_VER
# define off_t __int64
# else
# define off_t long long int
# endif
/* Indicator, for gnulib internal purposes. */
# define _GL_WINDOWS_64_BIT_OFF_T 1
#endif
/* MSVC 9 defines size_t in <stddef.h>, not in <sys/types.h>. */
/* But avoid namespace pollution on glibc systems. */
#if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) \
&& ! defined __GLIBC__
# include <stddef.h>
#endif
#endif /* _@GUARD_PREFIX@_SYS_TYPES_H */
#endif /* _@GUARD_PREFIX@_SYS_TYPES_H */

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#include <config.h>
#define _GL_UNISTD_INLINE _GL_EXTERN_INLINE
#include "unistd.h"

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