1/*
2 *
3 *   Copyright (c) International Business Machines  Corp., 2001
4 *
5 *   This program is free software;  you can redistribute it and/or modify
6 *   it under the terms of the GNU General Public License as published by
7 *   the Free Software Foundation; either version 2 of the License, or
8 *   (at your option) any later version.
9 *
10 *   This program is distributed in the hope that it will be useful,
11 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
12 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
13 *   the GNU General Public License for more details.
14 *
15 *   You should have received a copy of the GNU General Public License
16 *   along with this program;  if not, write to the Free Software
17 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20/*
21 * NAME
22 *	setpgrp02.c
23 *
24 * DESCRIPTION
25 *	Testcase to check the basic functionality of the setpgrp(2) syscall.
26 *
27 * ALGORITHM
28 *	Check the values that setpgrp() and getpgrp() return. The setpgrp()
29 *	returns 0 on success in Linux, but, in DYNIX/ptx this call returns
30 *	the new pgid.
31 *
32 * USAGE:  <for command-line>
33 *  setpgrp02 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
34 *     where,  -c n : Run n copies concurrently.
35 *             -f   : Turn off functionality Testing.
36 *             -i n : Execute test n times.
37 *             -I x : Execute test for x seconds.
38 *             -P x : Pause for x seconds between iterations.
39 *             -t   : Turn on syscall timing.
40 *
41 * HISTORY
42 *	07/2001 Ported by Wayne Boyer
43 *
44 * RESTRICTIONS
45 *	None
46 */
47#include <errno.h>
48#include <sys/wait.h>
49#include "test.h"
50
51char *TCID = "setpgrp02";
52int TST_TOTAL = 1;
53
54void setup(void);
55void cleanup(void);
56
57int main(int ac, char **av)
58{
59	int lc;
60
61	int pid, oldpgrp;
62	int e_code, status, retval = 0;
63
64	tst_parse_opts(ac, av, NULL, NULL);
65
66	setup();
67
68	for (lc = 0; TEST_LOOPING(lc); lc++) {
69
70		/* reset tst_count in case we are looping */
71		tst_count = 0;
72
73		if ((pid = FORK_OR_VFORK()) == -1) {
74			tst_brkm(TBROK, cleanup, "fork() failed");
75		}
76
77		if (pid == 0) {	/* child */
78			oldpgrp = getpgrp();
79
80			TEST(setpgrp());
81
82			if (TEST_RETURN != 0) {
83				retval = 1;
84				tst_resm(TFAIL, "setpgrp() FAILED, errno:%d",
85					 errno);
86				continue;
87			}
88
89			if (getpgrp() == oldpgrp) {
90				retval = 1;
91				tst_resm(TFAIL, "setpgrp() FAILED to set "
92					 "new group id");
93				continue;
94			} else {
95				tst_resm(TPASS, "functionality is correct");
96			}
97			exit(retval);
98		} else {	/* parent */
99			/* wait for the child to finish */
100			wait(&status);
101			/* make sure the child returned a good exit status */
102			e_code = status >> 8;
103			if ((e_code != 0) || (retval != 0)) {
104				tst_resm(TFAIL, "Failures reported above");
105			}
106			cleanup();
107		}
108	}
109	tst_exit();
110}
111
112/*
113 * setup() - performs all ONE TIME setup for this test.
114 */
115void setup(void)
116{
117
118	tst_sig(FORK, DEF_HANDLER, cleanup);
119
120	TEST_PAUSE;
121}
122
123/*
124 * cleanup() - performs all ONE TIME cleanup for this test at
125 *	       completion or premature exit.
126 */
127void cleanup(void)
128{
129
130}
131