1  /* Stop reading the entries of a directory.
       2     Copyright (C) 2006-2021 Free Software Foundation, Inc.
       3  
       4     This file is free software: you can redistribute it and/or modify
       5     it under the terms of the GNU Lesser General Public License as
       6     published by the Free Software Foundation; either version 2.1 of the
       7     License, or (at your option) any later version.
       8  
       9     This file 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
      12     GNU Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public License
      15     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      16  
      17  #include <config.h>
      18  
      19  /* Specification.  */
      20  #include <dirent.h>
      21  
      22  #if REPLACE_FCHDIR
      23  # include <unistd.h>
      24  #endif
      25  
      26  #if HAVE_CLOSEDIR
      27  
      28  /* Override closedir(), to keep track of the open file descriptors.
      29     Needed because there is a function dirfd().  */
      30  
      31  #else
      32  
      33  # include <stdlib.h>
      34  
      35  # include "dirent-private.h"
      36  
      37  #endif
      38  
      39  int
      40  closedir (DIR *dirp)
      41  {
      42  # if REPLACE_FCHDIR || REPLACE_DIRFD
      43    int fd = dirfd (dirp);
      44  # endif
      45    int retval;
      46  
      47  #if HAVE_CLOSEDIR
      48  # undef closedir
      49  
      50    retval = closedir (dirp);
      51  
      52  # ifdef __KLIBC__
      53    if (!retval)
      54      _gl_unregister_dirp_fd (fd);
      55  # endif
      56  #else
      57  
      58    if (dirp->current != INVALID_HANDLE_VALUE)
      59      FindClose (dirp->current);
      60    free (dirp);
      61  
      62    retval = 0;
      63  
      64  #endif
      65  
      66  #if REPLACE_FCHDIR
      67    if (retval >= 0)
      68      _gl_unregister_fd (fd);
      69  #endif
      70    return retval;
      71  }