1/*
2 * Copyright (c) 2013 Damien Miller <djm@mindrot.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17/* $OpenBSD$ */
18
19#include "includes.h"
20
21#include <sys/types.h>
22#ifdef HAVE_SYS_STATVFS_H
23# include <sys/statvfs.h>
24#endif
25#include <stdlib.h>
26#include <stdio.h>
27#include <string.h>
28#include <errno.h>
29
30static void
31usage(void)
32{
33	fprintf(stderr, "check-setuid [path]\n");
34	exit(1);
35}
36
37int
38main(int argc, char **argv)
39{
40	const char *path = ".";
41	struct statvfs sb;
42
43	if (argc > 2)
44		usage();
45	else if (argc == 2)
46		path = argv[1];
47
48	if (statvfs(path, &sb) != 0) {
49		/* Don't return an error if the host doesn't support statvfs */
50		if (errno == ENOSYS)
51			return 0;
52		fprintf(stderr, "statvfs for \"%s\" failed: %s\n",
53		     path, strerror(errno));
54	}
55	return (sb.f_flag & ST_NOSUID) ? 1 : 0;
56}
57
58
59