mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-11 07:40:05 +00:00
b6e9b25ba8
* sysdeps/unix/telldir.c: Fix position calculation to account for buffered data properly.
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* Copyright (C) 1991, 1995, 1996 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <ansidecl.h>
|
|
#include <errno.h>
|
|
#include <stddef.h>
|
|
#include <dirent.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include "dirstream.h"
|
|
|
|
/* Return the current position of DIRP. */
|
|
off_t
|
|
DEFUN(telldir, (dirp), DIR *dirp)
|
|
{
|
|
register off_t pos;
|
|
|
|
if (dirp == NULL)
|
|
{
|
|
errno = EINVAL;
|
|
return (off_t) -1;
|
|
}
|
|
|
|
pos = __lseek(dirp->__fd, (off_t) 0, SEEK_CUR);
|
|
if (pos == (off_t) -1)
|
|
return (off_t) -1;
|
|
return pos + dirp->__size - dirp->__offset;
|
|
}
|