/* Test program for opening already deleted running binaries.

   Copyright (C) 2014 Red Hat, Inc.

   This file is part of elfutils.

   This file is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   elfutils 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 General Public License for more details.

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

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <config.h>

#include <locale.h>

#include <stdlib.h>

#include <unistd.h>

#include <assert.h>

#include <stdio.h>

#include <errno.h>

#ifdef __linux__

#include <sys/prctl.h>

#endif

extern void libfunc (void);

int

main (int argc __attribute__ ((unused)), char **argv __attribute__ ((unused)))

{

  /* Set locale.  */

  (void) setlocale (LC_ALL, "");

  pid_t pid = fork ();

  assert (pid != -1);

  if (pid == 0)

    {

      int err = close (0);

      assert (!err);

      err = close (1);

      assert (!err);

      err = close (2);

      assert (!err);

      /* Make sure eu-stack -p works on this process even with

	 "restricted ptrace".  */

#ifdef PR_SET_PTRACER_ANY

      prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);

#endif

      libfunc ();

      abort ();

    }

  printf ("%d\n", pid);

  return EXIT_SUCCESS;

}