1 /*
2 * Check decoding of umode_t type syscall arguments.
3 *
4 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Copyright (c) 2016-2017 The strace developers.
6 * All rights reserved.
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 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <stdio.h>
32 #include <unistd.h>
33 #include <sys/stat.h>
34
35 #ifndef TEST_SYSCALL_PREFIX_ARGS
36 # define TEST_SYSCALL_PREFIX_ARGS
37 #endif
38 #ifndef TEST_SYSCALL_PREFIX_STR
39 # define TEST_SYSCALL_PREFIX_STR ""
40 #endif
41
42 static const char *sample;
43
44 static void
test_syscall(unsigned short mode)45 test_syscall(unsigned short mode)
46 {
47 unsigned long lmode = (unsigned long) 0xffffffffffff0000ULL | mode;
48 long rc = syscall(TEST_SYSCALL_NR, TEST_SYSCALL_PREFIX_ARGS
49 sample, lmode);
50
51 if (mode <= 07)
52 printf("%s(%s\"%s\", 00%d) = %ld %s (%m)\n",
53 TEST_SYSCALL_STR, TEST_SYSCALL_PREFIX_STR,
54 sample, (int) mode, rc, errno2name());
55 else
56 printf("%s(%s\"%s\", %#03ho) = %ld %s (%m)\n",
57 TEST_SYSCALL_STR, TEST_SYSCALL_PREFIX_STR,
58 sample, mode, rc, errno2name());
59 }
60
61 int
main(int ac,char ** av)62 main(int ac, char **av)
63 {
64 sample = av[0];
65 test_syscall(0);
66 test_syscall(0xffff);
67 test_syscall(06);
68 test_syscall(060);
69 test_syscall(0600);
70 test_syscall(024);
71 test_syscall(S_IFREG);
72 test_syscall(S_IFDIR | 06);
73 test_syscall(S_IFLNK | 060);
74 test_syscall(S_IFIFO | 0600);
75 test_syscall(S_IFCHR | 024);
76 test_syscall((0xffff & ~S_IFMT) | S_IFBLK);
77
78 puts("+++ exited with 0 +++");
79 return 0;
80 }
81