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* configure, config.in: Rebuild.

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* 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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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
}