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glibc/dlfcn/default.c
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#include <dlfcn.h> | |
#include <stdio.h> | |
#include <string.h> | |
extern int test_in_mod1 (void *); | |
extern int test_in_mod2 (void *); | |
int | |
main (int argc, char *argv[]) | |
{ | |
int (*ifp) (void); | |
void *p; | |
int result = 0; | |
Dl_info info; | |
dladdr(main, &info); | |
if (info.dli_fname == NULL) | |
{ | |
printf ("%s: dladdr returns NULL dli_fname\n", __FILE__); | |
result = 1; | |
} | |
else if (strcmp (info.dli_fname, argv[0])) | |
{ | |
printf ("%s: dladdr returned '%s' as dli_fname\n", __FILE__, info.dli_fname); | |
result = 1; | |
} | |
else | |
printf ("%s: dladdr returned correct dli_fname\n", __FILE__); | |
/* Find function `main'. */ | |
p = dlsym (RTLD_DEFAULT, "main"); | |
if (p == NULL) | |
{ | |
printf ("%s: main not found\n", __FILE__); | |
result = 1; | |
} | |
else if ((int (*)(int, char **))p != main) | |
{ | |
printf ("%s: wrong address returned for main\n", __FILE__); | |
result = 1; | |
} | |
else | |
printf ("%s: main correctly found\n", __FILE__); | |
ifp = dlsym (RTLD_DEFAULT, "found_in_mod1"); | |
if ((void *) ifp == NULL) | |
{ | |
printf ("%s: found_in_mod1 not found\n", __FILE__); | |
result = 1; | |
} | |
else if (ifp () != 1) | |
{ | |
printf ("%s: wrong address returned for found_in_mod1\n", __FILE__); | |
result = 1; | |
} | |
else | |
printf ("%s: found_in_mod1 correctly found\n", __FILE__); | |
ifp = dlsym (RTLD_DEFAULT, "found_in_mod2"); | |
if ((void *) ifp == NULL) | |
{ | |
printf ("%s: found_in_mod2 not found\n", __FILE__); | |
result = 1; | |
} | |
else if (ifp () != 2) | |
{ | |
printf ("%s: wrong address returned for found_in_mod2\n", __FILE__); | |
result = 1; | |
} | |
else | |
printf ("%s: found_in_mod2 correctly found\n", __FILE__); | |
result |= test_in_mod1 (main); | |
result |= test_in_mod2 (main); | |
return result; | |
} |