drd/tests/dlopen_main.c

   1 #include <stdlib.h>
   2 #include <stdio.h>
   3 #include <dlfcn.h>
   4 #include "dlopen_lib.h"
   5
   6 int main(int argc, char **argv)
   7 {
   8   const char *lib = argc > 1 ? argv[1] : "./libfoo.so";
   9   void *handle;
  10   void (*function)();
  11   const char *error;
  12
  13   handle = dlopen(lib, RTLD_NOW);
  14   if (!handle) {
  15     fputs (dlerror(), stderr);
  16     exit(1);
  17   }
  18
  19   function = dlsym(handle, "foo");
  20   error = dlerror();
  21   if (error)  {
  22     fputs(error, stderr);
  23     exit(1);
  24   }
  25
  26   (*function)();
  27   dlclose(handle);
  28   return 0;
  29 }