1  #include <stdlib.h>
       2  #include <string.h>
       3  #include <dlfcn.h>
       4  #include <assert.h>
       5  
       6  int main(int argc, char* argv[])
       7  {
       8  #if defined(__FreeBSD__)
       9      // workaround for Bugzilla 14824
      10      void *druntime = dlopen(argv[1], RTLD_LAZY); // load druntime
      11      assert(druntime);
      12  #endif
      13  #if defined(__DragonFly__)
      14      // workaround for Bugzilla 14824
      15      void *druntime = dlopen(argv[1], RTLD_LAZY); // load druntime
      16      assert(druntime);
      17  #endif
      18  
      19      const size_t pathlen = strrchr(argv[0], '/') - argv[0] + 1;
      20      char *name = malloc(pathlen + sizeof("plugin1.so"));
      21      memcpy(name, argv[0], pathlen);
      22      memcpy(name+pathlen, "plugin1.so", sizeof("plugin1.so"));
      23  
      24      void* plugin1 = dlopen(name, RTLD_LAZY);
      25      name[pathlen + sizeof("plugin1.so") - 5] = '2';
      26      void* plugin2 = dlopen(name, RTLD_LAZY);
      27  
      28      int (*plugin1_init)() = dlsym(plugin1, "plugin_init");
      29      int (*plugin1_term)() = dlsym(plugin1, "plugin_term");
      30      int (*runTests1)() = dlsym(plugin1, "runTests");
      31      int (*plugin2_init)() = dlsym(plugin2, "plugin_init");
      32      int (*plugin2_term)() = dlsym(plugin2, "plugin_term");
      33      int (*runTests2)() = dlsym(plugin2, "runTests");
      34      assert(plugin1_init());
      35      assert(runTests1());
      36      assert(plugin2_init());
      37      assert(runTests2());
      38  
      39      assert(plugin1_term());
      40      assert(dlclose(plugin1) == 0);
      41      assert(runTests2());
      42  
      43      name[pathlen + sizeof("plugin1.so") - 5] = '1';
      44      plugin1 = dlopen(name, RTLD_LAZY);
      45      plugin1_init = dlsym(plugin1, "plugin_init");
      46      plugin1_term = dlsym(plugin1, "plugin_term");
      47      runTests1 = dlsym(plugin1, "runTests");
      48      assert(plugin1_init());
      49      assert(runTests1());
      50      assert(runTests2());
      51  
      52      assert(plugin2_term());
      53      assert(dlclose(plugin2) == 0);
      54      assert(runTests1());
      55  
      56      assert(plugin1_term());
      57      assert(dlclose(plugin1) == 0);
      58  
      59      free(name);
      60  
      61  #if defined(__FreeBSD__)
      62      dlclose(druntime);
      63  #endif
      64  #if defined(__DragonFly__)
      65      dlclose(druntime);
      66  #endif
      67      return EXIT_SUCCESS;
      68  }