1  /* Copyright (C) 1993-2023 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 <hurd.h>
      24  #include <hurd/fd.h>
      25  #include "dirstream.h"
      26  
      27  /* Close the directory stream DIRP.
      28     Return 0 if successful, -1 if not.  */
      29  int
      30  __closedir (DIR *dirp)
      31  {
      32    error_t err;
      33  
      34    if (dirp == NULL)
      35      return __hurd_fail (EINVAL);
      36  
      37    __libc_lock_lock (dirp->__lock);
      38    err = __vm_deallocate (__mach_task_self (),
      39  			 (vm_address_t) dirp->__data, dirp->__allocation);
      40    dirp->__data = NULL;
      41    err = _hurd_fd_close (dirp->__fd);
      42  
      43    if (err)
      44      {
      45        /* Unlock the DIR.  A failing closedir can be repeated (and may fail
      46  	 again, but shouldn't deadlock).  */
      47        __libc_lock_unlock (dirp->__lock);
      48        return __hurd_fail (err);
      49      }
      50  
      51    /* Clean up the lock and free the structure.  */
      52    __libc_lock_fini (dirp->__lock);
      53    free (dirp);
      54  
      55    return 0;
      56  }
      57  weak_alias (__closedir, closedir)