mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-22 19:00:07 +00:00
076bfcf612
2000-08-29 Ulrich Drepper <drepper@redhat.com> * libio/iogetline.c: Set mode before the loop in case n==0. * libio/iogetwline.c: Likewise. 2000-08-29 H.J. Lu <hjl@gnu.org> * libio/fileops.c (new_do_write): Check fp->_mode <= 0 instead of fp->_mode < 0. (_IO_new_file_overflow): Likewise. * libio/genops.c (_IO_flush_all): Likewise. * libio/ioftell.c (_IO_ftell): Likewise.
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/* Copyright (C) 1993, 95, 96, 97, 98, 99, 2000 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 <stdlib.h>
|
|
#include <errno.h>
|
|
/* ANSI explicily requires setting errno to a positive value on failure. */
|
|
|
|
long int
|
|
_IO_ftell (fp)
|
|
_IO_FILE *fp;
|
|
{
|
|
_IO_off_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->_vtable_offset != 0 || fp->_mode <= 0)
|
|
pos -= fp->_IO_save_end - fp->_IO_save_base;
|
|
else
|
|
/* XXX For now. */
|
|
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;
|
|
}
|
|
|
|
#ifdef weak_alias
|
|
weak_alias (_IO_ftell, ftell)
|
|
#endif
|