summaryrefslogtreecommitdiffstats
path: root/gl/lib/closedir.c
blob: 24b6bdacb1ceaf83c62aeffc76a91759c8a0bfc0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
/* Stop reading the entries of a directory.
   Copyright (C) 2006-2024 Free Software Foundation, Inc.

   This file 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.

   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */

#include <config.h>

/* Specification.  */
#include <dirent.h>

#if REPLACE_FCHDIR
# include <unistd.h>
#endif

#include <stdlib.h>

#if HAVE_CLOSEDIR

/* Override closedir(), to keep track of the open file descriptors.
   Needed because there is a function dirfd().  */

#endif

#if GNULIB_defined_DIR
# include "dirent-private.h"
#endif

int
closedir (DIR *dirp)
#undef closedir
{
#if GNULIB_defined_DIR || REPLACE_FCHDIR
  int fd = dirfd (dirp);
#endif
  int retval;

#if HAVE_DIRENT_H                       /* equivalent to HAVE_CLOSEDIR */

# if GNULIB_defined_DIR
  retval = closedir (dirp->real_dirp);
  if (retval >= 0)
    free (dirp);
# else
  retval = closedir (dirp);
# endif

#else

  if (dirp->current != INVALID_HANDLE_VALUE)
    FindClose (dirp->current);
  free (dirp);

  retval = 0;

#endif

#if GNULIB_defined_DIR
  if (retval >= 0)
    close (fd);
#elif REPLACE_FCHDIR
  if (retval >= 0)
    _gl_unregister_fd (fd);
#endif

  return retval;
}