1 | /* Check that dlopen'ing the executable itself fails (bug 24900). |
2 | Copyright (C) 2014-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <dlfcn.h> |
20 | #include <stdlib.h> |
21 | #include <string.h> |
22 | #include <support/check.h> |
23 | |
24 | /* Call dlopen and check that fails with an error message indicating |
25 | an attempt to open an ET_EXEC or PIE object. */ |
26 | static void |
27 | check_dlopen_failure (const char *path) |
28 | { |
29 | void *handle = dlopen (file: path, RTLD_LAZY); |
30 | if (handle != NULL) |
31 | FAIL_EXIT1 ("dlopen succeeded unexpectedly: %s" , path); |
32 | |
33 | const char *message = dlerror (); |
34 | TEST_VERIFY_EXIT (message != NULL); |
35 | if ((strstr (haystack: message, |
36 | needle: "cannot dynamically load position-independent executable" ) |
37 | == NULL) |
38 | && strstr (haystack: message, needle: "cannot dynamically load executable" ) == NULL) |
39 | FAIL_EXIT1 ("invalid dlopen error message: \"%s\"" , message); |
40 | } |
41 | |
42 | static int |
43 | do_test (int argc, char *argv[]) |
44 | { |
45 | check_dlopen_failure (path: argv[0]); |
46 | |
47 | char *full_path = realpath (name: argv[0], NULL); |
48 | check_dlopen_failure (path: full_path); |
49 | free (ptr: full_path); |
50 | |
51 | return 0; |
52 | } |
53 | |
54 | #define TEST_FUNCTION_ARGV do_test |
55 | #include <support/test-driver.c> |
56 | |