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  * 	getpgid02.c
23  *
24  * DESCRIPTION
25  *	Testcase to check the basic functionality of getpgid().
26  *
27  * ALGORITHM
28  * 	test 1: Does getpgid(-99) and expects ESRCH.
29  * 	test 2: Searches an unused pid and expects ESRCH.
30  *
31  * USAGE:  <for command-line>
32  *  getpgid02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
33  *     where,  -c n : Run n copies concurrently.
34  *             -e   : Turn on errno logging.
35  *             -i n : Execute test n times.
36  *             -I x : Execute test for x seconds.
37  *             -P x : Pause for x seconds between iterations.
38  *             -t   : Turn on syscall timing.
39  *
40  * HISTORY
41  *	07/2001 Ported by Wayne Boyer
42  *
43  * RESTRICTIONS
44  *	none
45  */
46 #define _GNU_SOURCE 1
47 
48 #include <errno.h>
49 #include <unistd.h>
50 #include <stdarg.h>
51 #include <sys/wait.h>
52 #include <sys/types.h>
53 #include "test.h"
54 
55 void setup(void);
56 void cleanup(void);
57 
58 char *TCID = "getpgid02";
59 int TST_TOTAL = 2;
60 
61 int pgid_0, pgid_1;
62 #define BADPID -99
63 
64 struct test_case_t {
65 	int *id;
66 	int error;
67 } TC[] = {
68 	/* The pid value is negative */
69 	{
70 	&pgid_0, ESRCH},
71 	    /* The pid value does not match any process */
72 	{
73 	&pgid_1, ESRCH}
74 };
75 
76 int main(int ac, char **av)
77 {
78 	int lc;
79 	int i;
80 
81 	tst_parse_opts(ac, av, NULL, NULL);
82 
83 	setup();
84 
85 	for (lc = 0; TEST_LOOPING(lc); lc++) {
86 		/* reset tst_count in case we are looping */
87 		tst_count = 0;
88 
89 		/* loop through the test cases */
90 		for (i = 0; i < TST_TOTAL; i++) {
91 
92 			TEST(getpgid(*TC[i].id));
93 
94 			if (TEST_RETURN != -1) {
95 				tst_resm(TFAIL, "call succeeded unexpectedly");
96 				continue;
97 			}
98 
99 			if (TEST_ERRNO == TC[i].error) {
100 				tst_resm(TPASS, "expected failure - "
101 					 "errno = %d : %s", TEST_ERRNO,
102 					 strerror(TEST_ERRNO));
103 			} else {
104 				tst_resm(TFAIL, "unexpected error - %d : %s - "
105 					 "expected %d", TEST_ERRNO,
106 					 strerror(TEST_ERRNO), TC[i].error);
107 			}
108 		}
109 	}
110 	cleanup();
111 
112 	tst_exit();
113 }
114 
115 /*
116  * setup() - performs all ONE TIME setup for this test.
117  */
118 void setup(void)
119 {
120 
121 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
122 
123 	TEST_PAUSE;
124 
125 	pgid_0 = BADPID;
126 
127 	pgid_1 = tst_get_unused_pid(cleanup);
128 }
129 
130 /*
131  * cleanup() - performs all ONE TIME cleanup for this test at
132  *	       completion or premature exit.
133  */
134 void cleanup(void)
135 {
136 
137 }
138