48 lines · c
1 2#include <stdio.h>3#include <stdlib.h>4 5#ifdef DLOPEN_FUNC_DIR6#include <dlfcn.h>7#else8void func(int K);9void func2(int K);10#endif11 12int main(int argc, char *argv[]) {13#ifdef DLOPEN_FUNC_DIR14 dlerror();15 void *f1_handle = dlopen(DLOPEN_FUNC_DIR"/func.shared", DLOPEN_FLAGS);16 if (f1_handle == NULL) {17 fprintf(stderr, "unable to open '" DLOPEN_FUNC_DIR "/func.shared': %s\n",18 dlerror());19 return EXIT_FAILURE;20 }21 22 void (*func)(int) = (void (*)(int))dlsym(f1_handle, "func");23 if (func == NULL) {24 fprintf(stderr, "unable to lookup symbol 'func': %s\n", dlerror());25 return EXIT_FAILURE;26 }27 28 void *f2_handle = dlopen(DLOPEN_FUNC_DIR"/func2.shared", DLOPEN_FLAGS);29 if (f2_handle == NULL) {30 fprintf(stderr, "unable to open '" DLOPEN_FUNC_DIR "/func2.shared': %s\n",31 dlerror());32 return EXIT_FAILURE;33 }34 35 void (*func2)(int) = (void (*)(int))dlsym(f2_handle, "func2");36 if (func2 == NULL) {37 fprintf(stderr, "unable to lookup symbol 'func2': %s\n", dlerror());38 return EXIT_FAILURE;39 }40#endif41 42 func(1);43 func2(0);44 45 return EXIT_SUCCESS;46}47 48