1 | #include <dlfcn.h> |
2 | #include <stdio.h> |
3 | |
4 | |
5 | /* Number of rounds we perform the test. */ |
6 | #define TEST_ROUNDS 10 |
7 | |
8 | |
9 | static const char unknown[] = "a-file-with-this-name-does-not-exist" ; |
10 | static const char exists[] = "failtestmod.so" ; |
11 | |
12 | |
13 | int |
14 | main (void) |
15 | { |
16 | int i; |
17 | |
18 | setvbuf (stdout, NULL, _IONBF, n: 0); |
19 | |
20 | for (i = 0; i < TEST_ROUNDS; ++i) |
21 | { |
22 | void *dsc; |
23 | |
24 | printf (format: "Round %d: Try loading \"%s\"\n" , i, unknown); |
25 | |
26 | dsc = dlopen (file: unknown, RTLD_NOW); |
27 | if (dsc != NULL) |
28 | { |
29 | printf (format: "We found a file of name \"%s\": this should not happen\n" , |
30 | unknown); |
31 | return 1; |
32 | } |
33 | |
34 | printf (format: "Round %d: loading \"%s\" failed\n" , i, unknown); |
35 | |
36 | /* Don't use `dlerror', just load an existing file. */ |
37 | dsc = dlopen (file: exists, RTLD_NOW); |
38 | if (dsc == NULL) |
39 | { |
40 | printf (format: "Could not load \"%s\": %s\n" , exists, dlerror ()); |
41 | return 1; |
42 | } |
43 | |
44 | printf (format: "Round %d: Loaded \"%s\"\n" , i, exists); |
45 | |
46 | dlclose (handle: dsc); |
47 | |
48 | printf (format: "Round %d: Unloaded \"%s\"\n" , i, exists); |
49 | } |
50 | |
51 | return 0; |
52 | } |
53 | |
54 | |
55 | extern void foo (void); |
56 | |
57 | void |
58 | foo (void) |
59 | { |
60 | } |
61 | |