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      1 /*	$NetBSD: t_tcsetpgrp.c,v 1.3 2012/03/18 07:14:08 jruoho Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jukka Ruohonen.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #include <sys/cdefs.h>
     32 __RCSID("$NetBSD: t_tcsetpgrp.c,v 1.3 2012/03/18 07:14:08 jruoho Exp $");
     33 
     34 #include <sys/wait.h>
     35 
     36 #include <atf-c.h>
     37 #include <errno.h>
     38 #include <stdlib.h>
     39 #include <unistd.h>
     40 
     41 ATF_TC(tcsetpgrp_err);
     42 ATF_TC_HEAD(tcsetpgrp_err, tc)
     43 {
     44 	atf_tc_set_md_var(tc, "descr", "Test errors from tcsetpgrp(3)"
     45 	    " (PR lib/41673)");
     46 }
     47 
     48 ATF_TC_BODY(tcsetpgrp_err, tc)
     49 {
     50 	int rv, sta;
     51 	pid_t pid;
     52 
     53 	if (isatty(STDIN_FILENO) == 0)
     54 		return;
     55 
     56 	pid = fork();
     57 	ATF_REQUIRE(pid >= 0);
     58 
     59 	if (pid == 0) {
     60 
     61 		/*
     62 		 * The child process ID doesn't match any active
     63 		 * process group ID, so the following call should
     64 		 * fail with EPERM (and not EINVAL).
     65 		 */
     66 		errno = 0;
     67 		rv = tcsetpgrp(STDIN_FILENO, getpid());
     68 
     69 		if (rv == 0 || errno != EPERM)
     70 			_exit(EXIT_FAILURE);
     71 
     72 		_exit(EXIT_SUCCESS);
     73 	}
     74 
     75 	(void)wait(&sta);
     76 
     77 	if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
     78 		atf_tc_fail("wrong errno");
     79 }
     80 
     81 ATF_TP_ADD_TCS(tp)
     82 {
     83 
     84 	ATF_TP_ADD_TC(tp, tcsetpgrp_err);
     85 
     86 	return atf_no_error();
     87 }
     88