1 | /* Copyright (C) 2000-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <dlfcn.h> |
19 | #include <stdio.h> |
20 | #include <stdlib.h> |
21 | #include <string.h> |
22 | |
23 | int |
24 | main (void) |
25 | { |
26 | void *h; |
27 | const char *s; |
28 | |
29 | /* Test that dlerror works initially. */ |
30 | s = dlerror (); |
31 | printf (format: "dlerror() without prior dl*() call returned: %s\n" , s); |
32 | if (s != NULL) |
33 | return 1; |
34 | |
35 | h = dlopen (file: "errmsg1mod.so" , RTLD_NOW); |
36 | if (h != NULL) |
37 | { |
38 | dlclose (handle: h); |
39 | puts (s: "errmsg1mod.so could be loaded !?" ); |
40 | exit (1); |
41 | } |
42 | |
43 | s = dlerror (); |
44 | puts (s: s); |
45 | |
46 | return strstr (s, "errmsg1mod.so" ) == NULL; |
47 | } |
48 | |