text: /*	$NetBSD: t_tcsetpgrp.c,v 1.3 2012/03/18 07:14:08 jruoho Exp $ */
  
  /*-
   * Copyright (c) 2011 The NetBSD Foundation, Inc.
   * All rights reserved.
   *
   * This code is derived from software contributed to The NetBSD Foundation
   * by Jukka Ruohonen.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  #include <sys/cdefs.h>
  __RCSID("$NetBSD: t_tcsetpgrp.c,v 1.3 2012/03/18 07:14:08 jruoho Exp $");
  
  #include <sys/wait.h>
  
  #include <atf-c.h>
  #include <errno.h>
  #include <stdlib.h>
  #include <unistd.h>
  
  ATF_TC(tcsetpgrp_err);
  ATF_TC_HEAD(tcsetpgrp_err, tc)
  {
  	atf_tc_set_md_var(tc, "descr", "Test errors from tcsetpgrp(3)"
  	    " (PR lib/41673)");
  }
  
  ATF_TC_BODY(tcsetpgrp_err, tc)
  {
  	int rv, sta;
  	pid_t pid;
  
  	if (isatty(STDIN_FILENO) == 0)
  		return;
  
  	pid = fork();
  	ATF_REQUIRE(pid >= 0);
  
  	if (pid == 0) {
  
  		/*
  		 * The child process ID doesn't match any active
  		 * process group ID, so the following call should
  		 * fail with EPERM (and not EINVAL).
  		 */
  		errno = 0;
  		rv = tcsetpgrp(STDIN_FILENO, getpid());
  
  		if (rv == 0 || errno != EPERM)
  			_exit(EXIT_FAILURE);
  
  		_exit(EXIT_SUCCESS);
  	}
  
  	(void)wait(&sta);
  
  	if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
  		atf_tc_fail("wrong errno");
  }
  
  ATF_TP_ADD_TCS(tp)
  {
  
  	ATF_TP_ADD_TC(tp, tcsetpgrp_err);
  
  	return atf_no_error();
  }
  