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