mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-14 09:01:07 +00:00
1a35b7fd42
* libio/freopen.c: Include <stdlib.h> for free declaration. * libio/freopen64.c: Likewise.
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/* Copyright (C) 1993,95,96,97,98,2000,2001 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA.
|
|
|
|
As a special exception, if you link the code in this file with
|
|
files compiled with a GNU compiler to produce an executable,
|
|
that does not cause the resulting executable to be covered by
|
|
the GNU Lesser General Public License. This exception does not
|
|
however invalidate any other reasons why the executable file
|
|
might be covered by the GNU Lesser General Public License.
|
|
This exception applies to code released by its copyright holders
|
|
in files containing the exception. */
|
|
|
|
#include "libioP.h"
|
|
#include "stdio.h"
|
|
#include <stdlib.h>
|
|
|
|
#include <shlib-compat.h>
|
|
#include <fd_to_filename.h>
|
|
|
|
FILE*
|
|
freopen (filename, mode, fp)
|
|
const char* filename;
|
|
const char* mode;
|
|
FILE* fp;
|
|
{
|
|
FILE *result;
|
|
int fd = -1;
|
|
CHECK_FILE (fp, NULL);
|
|
if (!(fp->_flags & _IO_IS_FILEBUF))
|
|
return NULL;
|
|
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
|
|
_IO_flockfile (fp);
|
|
if (filename == NULL && _IO_fileno (fp) >= 0)
|
|
{
|
|
fd = dup (_IO_fileno (fp));
|
|
if (fd != -1)
|
|
filename = fd_to_filename (fd);
|
|
}
|
|
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
|
|
if (&_IO_stdin_used == NULL)
|
|
/* If the shared C library is used by the application binary which
|
|
was linked against the older version of libio, we just use the
|
|
older one even for internal use to avoid trouble since a pointer
|
|
to the old libio may be passed into shared C library and wind
|
|
up here. */
|
|
result = _IO_old_freopen (filename, mode, fp);
|
|
else
|
|
#endif
|
|
result = _IO_freopen (filename, mode, fp);
|
|
if (result != NULL)
|
|
/* unbound stream orientation */
|
|
result->_mode = 0;
|
|
if (fd != -1)
|
|
{
|
|
close (fd);
|
|
if (filename != NULL)
|
|
free ((char *) filename);
|
|
}
|
|
_IO_funlockfile (fp);
|
|
_IO_cleanup_region_end (0);
|
|
return result;
|
|
}
|