1/*
2 * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <errno.h>
29#include <stdio.h>
30#include <unistd.h>
31#include <sys/stat.h>
32#include <sys/mount.h>
33#include <sys/syscall.h>
34
35#ifdef __NR_oldumount
36# define TEST_SYSCALL_STR "oldumount"
37#else
38# if defined __NR_umount && defined __NR_umount2
39#  define __NR_oldumount __NR_umount
40#  define TEST_SYSCALL_STR "umount"
41# endif
42#endif
43
44int
45main(void)
46{
47#ifdef __NR_oldumount
48	static const char sample[] = "umount.sample";
49	if (mkdir(sample, 0700)) {
50		perror(sample);
51		return 77;
52	}
53	(void) syscall(__NR_oldumount, sample);
54	printf("%s(\"%s\") = -1 ", TEST_SYSCALL_STR, sample);
55	switch (errno) {
56		case ENOSYS:
57			printf("ENOSYS (%m)\n");
58			break;
59		case EPERM:
60			printf("EPERM (%m)\n");
61			break;
62		default:
63			printf("EINVAL (%m)\n");
64	}
65	(void) rmdir(sample);
66	puts("+++ exited with 0 +++");
67	return 0;
68#else
69	return 77;
70#endif
71}
72