1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1983, 1993
5 * Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __SCCSID("@(#)closedir.c 8.1 (Berkeley) 6/10/93");
34 #include "namespace.h"
35 #include <sys/types.h>
36 #include <dirent.h>
37 #include <pthread.h>
38 #include <stdlib.h>
39 #include <unistd.h>
40 #include "un-namespace.h"
41
42 #include "libc_private.h"
43 #include "gen-private.h"
44 #include "telldir.h"
45
46 /*
47 * close a directory.
48 */
49 int
fdclosedir(DIR * dirp)50 fdclosedir(DIR *dirp)
51 {
52 int fd;
53
54 if (__isthreaded)
55 _pthread_mutex_lock(&dirp->dd_lock);
56 fd = dirp->dd_fd;
57 dirp->dd_fd = -1;
58 dirp->dd_loc = 0;
59 free((void *)dirp->dd_buf);
60 free(dirp->dd_compat_de);
61 _reclaim_telldir(dirp);
62 if (__isthreaded) {
63 _pthread_mutex_unlock(&dirp->dd_lock);
64 _pthread_mutex_destroy(&dirp->dd_lock);
65 }
66 free((void *)dirp);
67 return (fd);
68 }
69
70 int
closedir(DIR * dirp)71 closedir(DIR *dirp)
72 {
73
74 return (_close(fdclosedir(dirp)));
75 }
76