1 /*
2 * Check decoding of umode_t type syscall arguments.
3 *
4 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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 <stdio.h>
31 #include <unistd.h>
32 #include <sys/stat.h>
33
34 #ifndef TEST_SYSCALL_PREFIX_ARGS
35 # define TEST_SYSCALL_PREFIX_ARGS
36 #endif
37 #ifndef TEST_SYSCALL_PREFIX_STR
38 # define TEST_SYSCALL_PREFIX_STR ""
39 #endif
40
41 static const char sample[] = TEST_SYSCALL_STR;
42
43 static void
test_syscall(unsigned short mode)44 test_syscall(unsigned short mode)
45 {
46 unsigned long lmode = (unsigned long) 0xffffffffffff0000ULL | mode;
47 long rc = syscall(TEST_SYSCALL_NR, TEST_SYSCALL_PREFIX_ARGS
48 sample, lmode);
49
50 if (mode <= 07)
51 printf("%s(%s\"%s\", 00%d) = %ld %s (%m)\n",
52 sample, TEST_SYSCALL_PREFIX_STR,
53 sample, (int) mode, rc, errno2name());
54 else
55 printf("%s(%s\"%s\", %#03ho) = %ld %s (%m)\n",
56 sample, TEST_SYSCALL_PREFIX_STR,
57 sample, mode, rc, errno2name());
58 }
59
60 int
main(void)61 main(void)
62 {
63 test_syscall(0);
64 test_syscall(0xffff);
65 test_syscall(06);
66 test_syscall(060);
67 test_syscall(0600);
68 test_syscall(024);
69 test_syscall(S_IFREG);
70 test_syscall(S_IFDIR | 06);
71 test_syscall(S_IFLNK | 060);
72 test_syscall(S_IFIFO | 0600);
73 test_syscall(S_IFCHR | 024);
74 test_syscall((0xffff & ~S_IFMT) | S_IFBLK);
75
76 puts("+++ exited with 0 +++");
77 return 0;
78 }
79