glibc/sysdeps/posix/telldir.c
Adhemerval Zanella ef3330fde4 linux: Use internal DIR locks when accessing filepos on telldir
Since it might change during a readdir call.

Checked on x86_64-linux-gnu and i686-linux-gnu.
2020-05-27 11:55:00 -03:00

34 lines
1.0 KiB
C

/* Copyright (C) 1991-2020 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, see
<https://www.gnu.org/licenses/>. */
#include <dirent.h>
#include <dirstream.h>
/* Return the current position of DIRP. */
long int
telldir (DIR *dirp)
{
long int ret;
__libc_lock_lock (dirp->lock);
ret = dirp->filepos;
__libc_lock_unlock (dirp->lock);
return ret;
}