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 <errno.h>
      19  #include <stddef.h>
      20  #include <stdlib.h>
      21  #include <dirent.h>
      22  #include <unistd.h>
      23  #include <dirstream.h>
      24  #include <not-cancel.h>
      25  
      26  
      27  /* Close the directory stream DIRP.
      28     Return 0 if successful, -1 if not.  */
      29  int
      30  __closedir (DIR *dirp)
      31  {
      32    int fd;
      33  
      34    if (dirp == NULL)
      35      {
      36        __set_errno (EINVAL);
      37        return -1;
      38      }
      39  
      40    /* We do not try to synchronize access here.  If some other thread
      41       still uses this handle it is a big mistake and that thread
      42       deserves all the bad data it gets.  */
      43  
      44    fd = dirp->fd;
      45  
      46  #if IS_IN (libc)
      47    __libc_lock_fini (dirp->lock);
      48  #endif
      49  
      50    free ((void *) dirp);
      51  
      52    return __close_nocancel (fd);
      53  }
      54  weak_alias (__closedir, closedir)