1 | /* BZ #19408 linux personality syscall wrapper test. |
2 | |
3 | Copyright (C) 2015-2024 Free Software Foundation, Inc. |
4 | This file is part of the GNU C Library. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | #include <errno.h> |
21 | #include <sys/personality.h> |
22 | #include <support/check.h> |
23 | |
24 | static int |
25 | do_test (void) |
26 | { |
27 | unsigned int test_persona = -EINVAL; |
28 | unsigned int saved_persona; |
29 | |
30 | errno = 0xdefaced; |
31 | saved_persona = personality (persona: 0xffffffff); |
32 | |
33 | unsigned int r = personality (persona: test_persona); |
34 | if (r == -1) |
35 | { |
36 | /* The syscall argument might be filtered by kernel, so the |
37 | test can not check for the bug issue. */ |
38 | if (errno == EPERM) |
39 | FAIL_UNSUPPORTED ("personality syscall argument are filtered" ); |
40 | FAIL_EXIT1 ("personality (%#x) failed: %m" , test_persona); |
41 | } |
42 | |
43 | TEST_COMPARE (r, saved_persona); |
44 | TEST_VERIFY (personality (0xffffffff) != -1); |
45 | TEST_VERIFY (personality (PER_LINUX) != -1); |
46 | TEST_COMPARE (personality (0xffffffff), PER_LINUX); |
47 | TEST_COMPARE (0xdefaced, errno); |
48 | |
49 | personality (persona: saved_persona); |
50 | |
51 | return 0; |
52 | } |
53 | |
54 | #include <support/test-driver.c> |
55 | |