sysdeps/unix/closedir.c

   1 /* Copyright (C) 1991, 1993, 1995, 1996, 1998 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <errno.h>
  20 #include <stddef.h>
  21 #include <stdlib.h>
  22 #include <dirent.h>
  23 #include <unistd.h>
  24 #include <dirstream.h>
  25
  26 /* Close the directory stream DIRP.
  27    Return 0 if successful, -1 if not.  */
  28 int
  29 __closedir (DIR *dirp)
  30 {
  31   int fd;
  32
  33   if (dirp == NULL)
  34     {
  35       __set_errno (EINVAL);
  36       return -1;
  37     }
  38
  39   __libc_lock_lock (dirp->lock);
  40
  41   fd = dirp->fd;
  42
  43   __libc_lock_fini (dirp->lock);
  44
  45   free ((void *) dirp);
  46
  47   return __close (fd);
  48 }
  49 weak_alias (__closedir, closedir)