mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-30 17:05:11 +08:00
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/* Copyright (C) 1993, 1995, 1997 Free Software Foundation, Inc.
|
|
This file is part of the GNU IO Library.
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2, or (at
|
|
your option) any later version.
|
|
|
|
This 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
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this library; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
|
|
MA 02111-1307, USA.
|
|
|
|
As a special exception, if you link this library with files
|
|
compiled with a GNU compiler to produce an executable, this does
|
|
not cause the resulting executable to be covered by the GNU General
|
|
Public License. This exception does not however invalidate any
|
|
other reasons why the executable file might be covered by the GNU
|
|
General Public License. */
|
|
|
|
#include <libioP.h>
|
|
#include <errno.h>
|
|
|
|
int
|
|
_IO_fsetpos (fp, posp)
|
|
_IO_FILE *fp;
|
|
const _IO_fpos_t *posp;
|
|
{
|
|
int result;
|
|
CHECK_FILE (fp, EOF);
|
|
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
|
|
_IO_flockfile (fp);
|
|
if (_IO_seekpos (fp, *posp, _IOS_INPUT|_IOS_OUTPUT) == _IO_pos_BAD)
|
|
{
|
|
/* ANSI explicitly requires setting errno to a positive value on
|
|
failure. */
|
|
#ifdef EIO
|
|
if (errno == 0)
|
|
__set_errno (EIO);
|
|
#endif
|
|
result = EOF;
|
|
}
|
|
else
|
|
result = 0;
|
|
_IO_cleanup_region_end (1);
|
|
return result;
|
|
}
|
|
|
|
#ifdef weak_alias
|
|
weak_alias (_IO_fsetpos, fsetpos)
|
|
#endif
|