64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* Copyright (C) 1993, 95, 96, 97, 98, 99 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 <stdio.h>
|
|
#include <libioP.h>
|
|
#include <errno.h>
|
|
|
|
|
|
off64_t
|
|
ftello64 (fp)
|
|
_IO_FILE *fp;
|
|
{
|
|
#ifdef _G_LSEEK64
|
|
_IO_off64_t pos;
|
|
CHECK_FILE (fp, -1L);
|
|
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
|
|
_IO_flockfile (fp);
|
|
pos = _IO_seekoff (fp, 0, _IO_seek_cur, 0);
|
|
if (_IO_in_backup (fp))
|
|
{
|
|
if (fp->_mode <= 0)
|
|
pos -= fp->_IO_save_end - fp->_IO_save_base;
|
|
else
|
|
abort ();
|
|
}
|
|
_IO_funlockfile (fp);
|
|
_IO_cleanup_region_end (0);
|
|
if (pos == _IO_pos_BAD)
|
|
{
|
|
#ifdef EIO
|
|
if (errno == 0)
|
|
__set_errno (EIO);
|
|
#endif
|
|
return -1L;
|
|
}
|
|
return pos;
|
|
#else
|
|
__set_errno (ENOSYS);
|
|
return -1;
|
|
#endif
|
|
}
|