#include <dlfcn.h>

#include <error.h>

#include <mcheck.h>

#include <stdio.h>

#include <stdlib.h>

int

main (void)

{

  void *su[5];

  void *h;

  int n;

  mtrace ();

  if ((su[0] = dlopen ("testobj1.so", RTLD_GLOBAL | RTLD_NOW)) == NULL

      || (su[1] = dlopen ("testobj2.so", RTLD_GLOBAL | RTLD_NOW)) == NULL

      || (su[2] = dlopen ("testobj3.so", RTLD_GLOBAL | RTLD_NOW)) == NULL

      || (su[3] = dlopen ("testobj4.so", RTLD_GLOBAL | RTLD_NOW)) == NULL

      || (su[4] = dlopen ("testobj5.so", RTLD_GLOBAL | RTLD_NOW)) == NULL)

    error (EXIT_FAILURE, 0, "failed to load shared object: %s", dlerror ());

  h = dlopen ("failobj.so", RTLD_GLOBAL | RTLD_NOW);

  printf ("h = %p, %s\n", h, h == NULL ? "ok" : "fail");

  for (n = 0; n < 5; ++n)

    if (dlclose (su[n]) != 0)

      {

	printf ("failed to unload su[%d]: %s\n", n, dlerror ());

	exit (EXIT_FAILURE);

      }

  return h != NULL;

}

extern int foo (int a);

int

foo (int a)

{

  return 10;

}