1/*-
2 * Copyright (c) 2012 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Pawel Jakub Dawidek under sponsorship from
6 * the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $P4: //depot/projects/trustedbsd/openbsm/bin/auditdistd/faccessat.h#1 $
30 */
31
32#ifndef	_FACCESSAT_H_
33#define	_FACCESSAT_H_
34
35#include <unistd.h>
36
37#define	AT_EACCESS	0x01
38
39static int
40faccessat(int fd, const char *path, int mode, int flag)
41{
42	int cfd, error, ret;
43
44	if (flag == AT_EACCESS) {
45		errno = EINVAL;
46		return (-1);
47	}
48
49	cfd = open(".", O_RDONLY | O_DIRECTORY);
50	if (cfd == -1)
51		return (-1);
52
53	if (fchdir(fd) == -1) {
54		error = errno;
55		(void)close(cfd);
56		errno = error;
57		return (-1);
58	}
59
60	ret = access(path, mode);
61
62	error = errno;
63	(void)fchdir(cfd);
64	(void)close(cfd);
65	errno = error;
66	return (ret);
67}
68
69#endif	/* !_FACCESSAT_H_ */
70