/* Copyright (C) 2001-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <dlfcn.h>

#include <stdio.h>

#include <stdlib.h>

int

main (void)

{

  const char fname[] = "modatexit.so";

  void *h;

  void (*fp) (void *);

  int v = 0;

  h = dlopen (fname, RTLD_NOW);

  if (h == NULL)

    {

      printf ("cannot open \"%s\": %s\n", fname, dlerror ());

      exit (1);

    }

  fp = dlsym (h, "foo");

  if (fp == NULL)

    {

      printf ("cannot find \"foo\": %s\n", dlerror ());

      exit (1);

    }

  fp (&v);

  if (dlclose (h) != 0)

    {

      printf ("cannot close \"%s\": %s\n", fname, dlerror ());

      exit (1);

    }

  if (v != 1)

    {

      puts ("module unload didn't change `v'");

      exit (1);

    }

  puts ("finishing now");

  return 0;

}