glibc/libio/oldiofgetpos.c
Ulrich Drepper 52a16e5801 Update.
2002-11-05  Ulrich Drepper  <drepper@redhat.com>

	* libio/ioseekoff.c: Remove INTDEF.  Define _IO_seekoff_unlocked.  Same
	as old code without locking.  _IO_seekoff calls this function after
	locking the stream.
	* libio/ioseekpos.c: Likewise for _IO_seekpos.
	* libio/libioP.h: Replace _IO_seekoff_internal and _IO_seekpos_internal
	prototypes with _IO_seekoff_unlocked and _IO_seekpos_unlocked
	prototypes.
	* libio/iolibio.h (_IO_fseek): Call _IO_seekoff_unlocked instead
	of _IO_seekoff_internal.
	(_IO_rewind): Likewise.
	* libio/ioftell.c: Likewise.
	* libio/ftello.c: Likewise.
	* libio/ftello64.c: Likewise.
	* libio/iofgetpos.c: Likewise.
	* libio/iofgetpos64.c: Likewise.
	* libio/oldiofgetpos.c: Likewise.
	* libio/oldiofgetpos64.c: Likewise.
	* libio/iofsetpos.c: Call _IO_seekpos_unlocked instead of
	_IO_seekpos_internal.
	* libio/iofsetpos64.c: Likewise.
	* libio/oldiofsetpos.c: Likewise.
	* libio/oldiofsetpos64.c: Likewise.

	* libio/wfileops.c (_IO_wfile_seekoff): Don't modify _offset and
	_wide_data->_IO_read_end if adjustment can be made in the current
	buffer.
2002-11-05 08:43:05 +00:00

69 lines
2.3 KiB
C

/* Copyright (C) 1993,95,96,97,98,99,2000, 2002 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 <errno.h>
#include <shlib-compat.h>
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
int
_IO_old_fgetpos (fp, posp)
_IO_FILE *fp;
_IO_fpos_t *posp;
{
_IO_off_t pos;
CHECK_FILE (fp, EOF);
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
_IO_flockfile (fp);
pos = _IO_seekoff_unlocked (fp, 0, _IO_seek_cur, 0);
if (_IO_in_backup (fp))
pos -= fp->_IO_save_end - fp->_IO_save_base;
_IO_funlockfile (fp);
_IO_cleanup_region_end (0);
if (pos == _IO_pos_BAD)
{
/* ANSI explicitly requires setting errno to a positive value on
failure. */
#ifdef EIO
if (errno == 0)
__set_errno (EIO);
#endif
return EOF;
}
posp->__pos = pos;
return 0;
}
#ifdef weak_alias
compat_symbol (libc, _IO_old_fgetpos, _IO_fgetpos, GLIBC_2_0);
strong_alias (_IO_old_fgetpos, __old_fgetpos)
compat_symbol (libc, __old_fgetpos, fgetpos, GLIBC_2_0);
#endif
#endif