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* configure, config.in: Rebuild.

Browse Source 
* configure.in: Check for fileno.
	* bfdio.c (close_on_exec): New function.
	(real_fopen): Use it.
	(FD_CLOEXEC): New define.
This commit is contained in:
Tom Tromey 2008-11-06 14:10:46 +00:00
parent efd20d3a42
commit 428b207a69
5 changed files with 37 additions and 4 deletions
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8
bfd/ChangeLog
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@ -1,3 +1,11 @@
2008-11-06 Tom Tromey <tromey@redhat.com>
* configure, config.in: Rebuild.
* configure.in: Check for fileno.
* bfdio.c (close_on_exec): New function.
(real_fopen): Use it.
(FD_CLOEXEC): New define.
2008-11-06 Tristan Gingold <gingold@adacore.com>
* mach-o.h (BFD_MACH_O_NO_SECT): Add; reorders the macros.

25
bfd/bfdio.c
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@ -38,6 +38,10 @@
#define S_IXOTH 0001 /* Execute by others. */
#endif
#ifndef FD_CLOEXEC
#define FD_CLOEXEC 1
#endif
file_ptr
real_ftell (FILE *file)
{
@ -62,13 +66,30 @@ real_fseek (FILE *file, file_ptr offset, int whence)
#endif
}
/* Mark FILE as close-on-exec. Return FILE. FILE may be NULL, in
which case nothing is done. */
static FILE *
close_on_exec (FILE *file)
{
#if defined (HAVE_FILENO) && defined (F_GETFD)
if (file)
{
int fd = fileno (file);
int old = fcntl (fd, F_GETFD, 0);
if (old >= 0)
fcntl (fd, F_SETFD, old | FD_CLOEXEC);
}
#endif
return file;
}
FILE *
real_fopen (const char *filename, const char *modes)
{
#if defined (HAVE_FOPEN64)
return fopen64 (filename, modes);
return close_on_exec (fopen64 (filename, modes));
#else
return fopen (filename, modes);
return close_on_exec (fopen (filename, modes));
#endif
}

3
bfd/config.in
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@ -78,6 +78,9 @@
/* Define to 1 if you have the `fdopen' function. */
#undef HAVE_FDOPEN
/* Define to 1 if you have the `fileno' function. */
#undef HAVE_FILENO
/* Define to 1 if you have the `fopen64' function. */
#undef HAVE_FOPEN64

3
bfd/configure vendored
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@ -17553,7 +17553,8 @@ fi
for ac_func in fcntl getpagesize setitimer sysconf fdopen getuid getgid
for ac_func in fcntl getpagesize setitimer sysconf fdopen getuid getgid fileno
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5

2
bfd/configure.in
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@ -179,7 +179,7 @@ GCC_HEADER_STDINT(bfd_stdint.h)
AC_HEADER_TIME
AC_HEADER_DIRENT
ACX_HEADER_STRING
AC_CHECK_FUNCS(fcntl getpagesize setitimer sysconf fdopen getuid getgid)
AC_CHECK_FUNCS(fcntl getpagesize setitimer sysconf fdopen getuid getgid fileno)
AC_CHECK_FUNCS(strtoull)
AC_CHECK_DECLS(basename)