/* Signal handler and mask set in thread which calls exec.

   Copyright (C) 2003-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.

   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 <pthread.h>

#include <signal.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

static void *

tf (void *arg)

{

  /* Ignore SIGUSR1 and block SIGUSR2.  */

  if (sigignore (SIGUSR1) != 0)

    {

      puts ("sigignore failed");

      exit (1);

    }

  sigset_t ss;

  sigemptyset (&ss);

  sigaddset (&ss, SIGUSR2);

  if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)

    {

      puts ("1st run: sigmask failed");

      exit (1);

    }

  char **oldargv = (char **) arg;

  size_t n = 1;

  while (oldargv[n] != NULL)

    ++n;

  char **argv = (char **) alloca ((n + 1) * sizeof (char *));

  for (n = 0; oldargv[n + 1] != NULL; ++n)

    argv[n] = oldargv[n + 1];

  argv[n++] = (char *) "--direct";

  argv[n] = NULL;

  execv (argv[0], argv);

  puts ("execv failed");

  exit (1);

}

static int

do_test (int argc, char *argv[])

{

  if (argc == 1)

    {

      /* This is the second call.  Perform the test.  */

      struct sigaction sa;

      if (sigaction (SIGUSR1, NULL, &sa) != 0)

	{

	  puts ("2nd run: sigaction failed");

	  return 1;

	}

      if (sa.sa_handler != SIG_IGN)

	{

	  puts ("SIGUSR1 not ignored");

	  return 1;

	}

      sigset_t ss;

      if (pthread_sigmask (SIG_SETMASK, NULL, &ss) != 0)

	{

	  puts ("2nd run: sigmask failed");

	  return 1;

	}

      if (! sigismember (&ss, SIGUSR2))

	{

	  puts ("SIGUSR2 not blocked");

	  return 1;

	}

      return 0;

    }

  pthread_t th;

  if (pthread_create (&th, NULL, tf, argv) != 0)

    {

      puts ("create failed");

      exit (1);

    }

  /* This call should never return.  */

  pthread_join (th, NULL);

  puts ("join returned");

  return 1;

}

#define TEST_FUNCTION do_test (argc, argv)

#include "../test-skeleton.c"