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 * kill08.c
23 *
24 * DESCRIPTION
25 * Test case to check the basic functionality of kill() when kill an
26 * entire process group.
27 *
28 * ALGORITHM
29 * call setup
30 * loop if the -i option was given
31 * fork 5 childeren
32 * execute the kill system call
33 * check the return value
34 * if return value is -1
35 * issue a FAIL message, break remaining tests and cleanup
36 * if we are doing functional testing
37 * if the processes were terminated with the expected signal.
38 * issue a PASS message
39 * otherwise
40 * issue a FAIL message
41 * call cleanup
42 *
43 * USAGE
44 * kill08 [-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 * This test should be run as a non-root user.
57 */
58
59 #include "test.h"
60
61 #include <signal.h>
62 #include <errno.h>
63 #include <sys/wait.h>
64
65 void cleanup(void);
66 void setup(void);
67 void do_child(void);
68
69 char *TCID = "kill08";
70 int TST_TOTAL = 1;
71
72 #define TEST_SIG SIGKILL
73
main(int ac,char ** av)74 int main(int ac, char **av)
75 {
76 int lc;
77 pid_t pid1, pid2;
78 int exno, status, nsig, i;
79
80 tst_parse_opts(ac, av, NULL, NULL);
81 #ifdef UCLINUX
82 maybe_run_child(&do_child, "");
83 #endif
84
85 setup(); /* global setup */
86
87 /* The following loop checks looping state if -i option given */
88 for (lc = 0; TEST_LOOPING(lc); lc++) {
89
90 /* reset tst_count in case we are looping */
91 tst_count = 0;
92 status = 1;
93 exno = 1;
94
95 /* Fork a process and set the process group so that */
96 /* it is different from this one. Fork 5 more children. */
97
98 pid1 = FORK_OR_VFORK();
99 if (pid1 < 0) {
100 tst_brkm(TBROK, cleanup, "Fork of first child failed");
101 } else if (pid1 == 0) {
102 setpgrp();
103 for (i = 0; i < 5; i++) {
104 pid2 = FORK_OR_VFORK();
105 if (pid2 < 0) {
106 tst_brkm(TBROK, cleanup, "Fork failed");
107 } else if (pid2 == 0) {
108 #ifdef UCLINUX
109 if (self_exec(av[0], "") < 0) {
110 tst_brkm(TBROK, cleanup,
111 "self_exec of "
112 "child failed");
113 }
114 #else
115 do_child();
116 #endif
117 }
118 }
119 /* Kill all processes in this process group */
120 TEST(kill(0, TEST_SIG));
121 pause();
122 exit(exno);
123 } else {
124 waitpid(pid1, &status, 0);
125 if (TEST_RETURN != 0) {
126 tst_brkm(TFAIL, cleanup, "%s failed - errno = "
127 "%d : %s", TCID, TEST_ERRNO,
128 strerror(TEST_ERRNO));
129 }
130 }
131
132 /*
133 * Check to see if the process was terminated with the
134 * expected signal.
135 */
136 nsig = WTERMSIG(status);
137 if (nsig == TEST_SIG) {
138 tst_resm(TPASS, "received expected signal %d",
139 nsig);
140 } else {
141 tst_resm(TFAIL,
142 "expected signal %d received %d",
143 TEST_SIG, nsig);
144 }
145 }
146
147 cleanup();
148 tst_exit();
149 }
150
151 /*
152 * do_child()
153 */
do_child(void)154 void do_child(void)
155 {
156 int exno = 1;
157
158 pause();
159 exit(exno);
160 }
161
162 /*
163 * setup() - performs all ONE TIME setup for this test
164 */
setup(void)165 void setup(void)
166 {
167
168 TEST_PAUSE;
169 }
170
171 /*
172 * cleanup() - performs all the ONE TIME cleanup for this test at completion
173 * or premature exit.
174 */
cleanup(void)175 void cleanup(void)
176 {
177
178 }
179