/* Copyright (C) 1993-2018 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

   <http://www.gnu.org/licenses/>.  */

#include <errno.h>

#include <stddef.h>

#include <dirent.h>

#include <unistd.h>

#include "dirstream.h"

/* Seek to position POS in DIRP.  */

void

__seekdir (DIR *dirp, long int pos)

{

  __libc_lock_lock (dirp->__lock);

  /* Change our entry index pointer to POS and discard any data already

     read.  The next `readdir' call will notice the empty block and read

     anew from the location in DIRP->__entry_ptr and reset the other state

     variables.  */

  dirp->__entry_ptr = pos;

  dirp->__size = 0;

  __libc_lock_unlock (dirp->__lock);

}

weak_alias (__seekdir, seekdir)