/* 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 <stdlib.h>

#include <dirent.h>

#include <unistd.h>

#include <hurd.h>

#include <hurd/fd.h>

#include "dirstream.h"

/* Close the directory stream DIRP.

   Return 0 if successful, -1 if not.  */

int

__closedir (DIR *dirp)

{

  error_t err;

  if (dirp == NULL)

    {

      errno = EINVAL;

      return -1;

    }

  __libc_lock_lock (dirp->__lock);

  err = __vm_deallocate (__mach_task_self (),

			 (vm_address_t) dirp->__data, dirp->__allocation);

  dirp->__data = NULL;

  err = _hurd_fd_close (dirp->__fd);

  if (err)

    {

      /* Unlock the DIR.  A failing closedir can be repeated (and may fail

	 again, but shouldn't deadlock).  */

      __libc_lock_unlock (dirp->__lock);

      return __hurd_fail (err);

    }

  /* Clean up the lock and free the structure.  */

  __libc_lock_fini (dirp->__lock);

  free (dirp);

  return 0;

}

weak_alias (__closedir, closedir)