xref: /freebsd/lib/libc/gen/fdopendir.c (revision d40daefca64750c1076822bdbd3c409a9519f513)
1*d40daefcSKonstantin Belousov /*-
2*d40daefcSKonstantin Belousov  * SPDX-License-Identifier: BSD-3-Clause
3*d40daefcSKonstantin Belousov  *
4*d40daefcSKonstantin Belousov  * Copyright (c) 1983, 1993
5*d40daefcSKonstantin Belousov  *	The Regents of the University of California.  All rights reserved.
6*d40daefcSKonstantin Belousov  *
7*d40daefcSKonstantin Belousov  * Redistribution and use in source and binary forms, with or without
8*d40daefcSKonstantin Belousov  * modification, are permitted provided that the following conditions
9*d40daefcSKonstantin Belousov  * are met:
10*d40daefcSKonstantin Belousov  * 1. Redistributions of source code must retain the above copyright
11*d40daefcSKonstantin Belousov  *    notice, this list of conditions and the following disclaimer.
12*d40daefcSKonstantin Belousov  * 2. Redistributions in binary form must reproduce the above copyright
13*d40daefcSKonstantin Belousov  *    notice, this list of conditions and the following disclaimer in the
14*d40daefcSKonstantin Belousov  *    documentation and/or other materials provided with the distribution.
15*d40daefcSKonstantin Belousov  * 3. Neither the name of the University nor the names of its contributors
16*d40daefcSKonstantin Belousov  *    may be used to endorse or promote products derived from this software
17*d40daefcSKonstantin Belousov  *    without specific prior written permission.
18*d40daefcSKonstantin Belousov  *
19*d40daefcSKonstantin Belousov  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20*d40daefcSKonstantin Belousov  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21*d40daefcSKonstantin Belousov  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22*d40daefcSKonstantin Belousov  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23*d40daefcSKonstantin Belousov  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24*d40daefcSKonstantin Belousov  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25*d40daefcSKonstantin Belousov  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26*d40daefcSKonstantin Belousov  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27*d40daefcSKonstantin Belousov  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28*d40daefcSKonstantin Belousov  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29*d40daefcSKonstantin Belousov  * SUCH DAMAGE.
30*d40daefcSKonstantin Belousov  */
31*d40daefcSKonstantin Belousov 
32*d40daefcSKonstantin Belousov #include "namespace.h"
33*d40daefcSKonstantin Belousov #include <sys/param.h>
34*d40daefcSKonstantin Belousov 
35*d40daefcSKonstantin Belousov #include <dirent.h>
36*d40daefcSKonstantin Belousov #include <errno.h>
37*d40daefcSKonstantin Belousov #include <fcntl.h>
38*d40daefcSKonstantin Belousov #include <stdlib.h>
39*d40daefcSKonstantin Belousov #include <string.h>
40*d40daefcSKonstantin Belousov #include <unistd.h>
41*d40daefcSKonstantin Belousov #include "un-namespace.h"
42*d40daefcSKonstantin Belousov 
43*d40daefcSKonstantin Belousov #include "gen-private.h"
44*d40daefcSKonstantin Belousov #include "telldir.h"
45*d40daefcSKonstantin Belousov 
46*d40daefcSKonstantin Belousov /*
47*d40daefcSKonstantin Belousov  * Open a directory with existing file descriptor.
48*d40daefcSKonstantin Belousov  */
49*d40daefcSKonstantin Belousov DIR *
fdopendir(int fd)50*d40daefcSKonstantin Belousov fdopendir(int fd)
51*d40daefcSKonstantin Belousov {
52*d40daefcSKonstantin Belousov 
53*d40daefcSKonstantin Belousov 	if (_fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
54*d40daefcSKonstantin Belousov 		return (NULL);
55*d40daefcSKonstantin Belousov 	return (__opendir_common(fd, DTF_HIDEW | DTF_NODUP, true));
56*d40daefcSKonstantin Belousov }
57