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 * getsid01.c
23 *
24 * DESCRIPTION
25 * getsid01 - call getsid() and make sure it succeeds
26 *
27 * ALGORITHM
28 * loop if that option was specified
29 * issue the system call
30 * check the return value
31 * if return value == -1
32 * issue a FAIL message, break remaining tests and cleanup
33 * if we are doing functional testing
34 * save the return value from the getsid() call - the session ID
35 * fork a child and get the child's session ID
36 * if the child's session ID == the parent's session ID
37 * issue a PASS message
38 * else
39 * issue a FAIL message
40 * else issue a PASS message
41 * call cleanup
42 *
43 * USAGE: <for command-line>
44 * getsid01 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
45 * where, -c n : Run n copies concurrently.
46 * -f : Turn off functionality Testing.
47 * -i n : Execute test n times.
48 * -I x : Execute test for x seconds.
49 * -P x : Pause for x seconds between iterations.
50 * -t : Turn on syscall timing.
51 *
52 * HISTORY
53 * 07/2001 Ported by Wayne Boyer
54 *
55 * RESTRICTIONS
56 * none
57 */
58 #define _GNU_SOURCE 1
59
60 #include <errno.h>
61 #include <sys/wait.h>
62 #include <unistd.h>
63 #include "test.h"
64
65 void cleanup(void);
66 void setup(void);
67
68 char *TCID = "getsid01";
69 int TST_TOTAL = 1;
70
71 pid_t p_sid;
72
main(int ac,char ** av)73 int main(int ac, char **av)
74 {
75 int lc;
76 pid_t pid, c_pid, c_sid;
77
78 tst_parse_opts(ac, av, NULL, NULL);
79
80 setup(); /* global setup */
81
82 /* The following loop checks looping state if -i option given */
83
84 for (lc = 0; TEST_LOOPING(lc); lc++) {
85 /* reset tst_count in case we are looping */
86 tst_count = 0;
87
88 /* call the system call with the TEST() macro */
89
90 TEST(getsid(0));
91
92 if (TEST_RETURN == -1) {
93 tst_resm(TFAIL, "call failed - errno = %d "
94 "- %s", TEST_ERRNO, strerror(TEST_ERRNO));
95 continue;
96 }
97
98 /* save the return value in a global variable */
99 p_sid = TEST_RETURN;
100
101 if ((pid = FORK_OR_VFORK()) == -1) {
102 tst_brkm(TBROK, cleanup, "could not fork");
103 }
104
105 if (pid == 0) { /* child */
106 if ((c_pid = getpid()) == -1) {
107 tst_resm(TINFO, "getpid failed in "
108 "functionality test");
109 exit(1);
110 }
111
112 /*
113 * if the session ID of the child is the
114 * same as the parent then things look good
115 */
116
117 if ((c_sid = getsid(0)) == -1) {
118 tst_resm(TINFO, "getsid failed in "
119 "functionality test");
120 exit(2);
121 }
122
123 if (c_sid == p_sid) {
124 tst_resm(TPASS, "session ID is "
125 "correct");
126 } else {
127 tst_resm(TFAIL, "session ID is "
128 "not correct");
129 }
130 exit(0);
131
132 } else {
133 waitpid(pid, NULL, 0);
134 }
135 }
136
137 cleanup();
138 tst_exit();
139 }
140
141 /*
142 * setup() - performs all the ONE TIME setup for this test.
143 */
setup(void)144 void setup(void)
145 {
146
147 tst_sig(FORK, DEF_HANDLER, cleanup);
148
149 TEST_PAUSE;
150 }
151
152 /*
153 * cleanup() - performs all the ONE TIME cleanup for this test at completion
154 * or premature exit.
155 */
cleanup(void)156 void cleanup(void)
157 {
158
159 }
160