1  /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <stddef.h>
      19  #include <dirent.h>
      20  #include <sys/types.h>
      21  #include <unistd.h>
      22  #include <dirstream.h>
      23  
      24  /* Rewind DIRP to the beginning of the directory.  */
      25  void
      26  __rewinddir (DIR *dirp)
      27  {
      28  #if IS_IN (libc)
      29    __libc_lock_lock (dirp->lock);
      30  #endif
      31    (void) __lseek (dirp->fd, (off_t) 0, SEEK_SET);
      32    dirp->filepos = 0;
      33    dirp->offset = 0;
      34    dirp->size = 0;
      35    dirp->errcode = 0;
      36  #if IS_IN (libc)
      37    __libc_lock_unlock (dirp->lock);
      38  #endif
      39  }
      40  libc_hidden_def (__rewinddir)
      41  weak_alias (__rewinddir, rewinddir)