glibc/libio/ioftell.c
Roland McGrath 7c713e287e Wed May 8 20:04:29 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* Rules (subdir_install): Depend on $(common-objpfx)sor-$(subdir).
	[! libc.so-version]: Clear static-only-routines.
	($(common-objpfx)sor-$(subdir)): New target.
	[static-only-routines]: New static pattern rule for these .so's.
	* Makerules [libc.so-version] ($(slibdir)/libc.so): Target removed.
	[libc.so-version] ($(libdir)/libc.so, $(common-objpfx)libc-syms.so):
	New targets replace it.
	(install) [libc.so-version]: Depend on $(libdir)/libc.so instead of
	$(slibdir)/libc.so.
	* io/Makefile (static-only-routines): New variable.
	* configure.in: Check for tools objdump and objcopy, and for awk.
	* config.make.in (OBJDUMP, OBJCOPY, AWK): New variables.

Thu May  9 01:24:00 1996  Ulrich Drepper  <drepper@cygnus.com>

	* locale/programs/config.h: Remove definition of wint_t.

	* locale/programs/ld-collate.c: Include <wchar.h> instead of
	<wcstr.h>.

	* manual/time.texi: Add some more description for %U and %W
	format of strftime.  Describe new format %V of strftime.

	* resolv/gethnamaddr.c: Prevent warning by preventing variable
	definition.
	* stdio-common/_itoa.c: Ditto.

Tue May  7 23:43:07 1996  Ulrich Drepper  <drepper@cygnus.com>

	* libio/clearerr.c, libio/feof.c, libio/ferror.c, libio/fgetc.c,
	libio/fileno.c, libio/fputc.c, libio/freopen.c, libio/fseek.c,
	libio/genops.c, libio/getc.c, libio/getchar.c, libio/iofclose.c,
	libio/iofflush.c, libio/iofgetpos.c, libio/iofgets.c,
	libio/iofputs.c, libio/iofread.c, libio/iofsetpos.c,
	libio/ioftell.c, libio/iofwrite.c, libio/iogetdelim.c,
	libio/iogets.c, libio/ioputs.c, libio/iosetbuffer.c,
	libio/iosetvbuf.c, libio/ioungetc.c, libio/iovsprintf.c,
	libio/libio.h, libio/putc.c, libio/putchar.c, libio/rewind.c,
	libio/stdio.h, stdio-common/printf_fp.c, stdio-common/vfprintf.c,
	stdio-common/vfscanf.c: Prepare for reentrent libio.

	* libio/clearerr_u.c, libio/feof_u.c, libio/ferror_u.c,
	libio/fputc_u.c, libio/getc_u.c, libio/getchar_u.c,
	libio/iofflush_u.c, libio/putc_u.c, libio/putchar_u.c: New files.
	Used in reentrent libio.

	* misc/getusershell.c: Prevent warnings.
1996-05-09 00:37:21 +00:00

50 lines
1.6 KiB
C

/*
Copyright (C) 1993, 1995 Free Software Foundation
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>
/* ANSI explicily requires setting errno to a positive value on failure. */
long int
_IO_ftell (fp)
_IO_FILE* fp;
{
_IO_pos_t pos;
CHECK_FILE (fp, -1L);
_IO_flockfile (fp);
pos = _IO_seekoff (fp, 0, _IO_seek_cur, 0);
_IO_funlockfile (fp);
if (pos == _IO_pos_BAD)
{
#ifdef EIO
if (errno == 0)
errno = EIO;
#endif
return -1L;
}
return _IO_pos_as_off (pos);
}
weak_alias (_IO_ftell, ftell)