1/*
2 * Check success injection.
3 *
4 * Copyright (c) 2017 Elvira Khabirova <lineprinter0@gmail.com>
5 * 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. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include "tests.h"
31#include <asm/unistd.h>
32
33#ifdef __NR_chdir
34
35# include <assert.h>
36# include <stdio.h>
37# include <stdlib.h>
38# include <unistd.h>
39# include <sys/stat.h>
40
41int
42main(int argc, char *argv[])
43{
44	assert(argc == 2);
45
46	static const char dir[] = "..";
47	struct stat before, after;
48
49	if (stat(".", &before))
50		perror_msg_and_fail("stat");
51
52	long rval = syscall(__NR_chdir, dir);
53
54	if (stat(".", &after))
55		perror_msg_and_fail("stat");
56
57	if (before.st_dev != after.st_dev || before.st_ino != after.st_ino)
58		error_msg_and_fail("syscall succeeded");
59	if (atol(argv[1]) != rval)
60		error_msg_and_fail("expected retval %s, got retval %ld",
61				   argv[1], rval);
62
63	printf("chdir(\"%s\") = %ld (INJECTED)\n", dir, rval);
64
65	puts("+++ exited with 0 +++");
66	return 0;
67}
68
69#else
70
71SKIP_MAIN_UNDEFINED("__NR_chdir")
72
73#endif
74