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 * kill06.c
23 *
24 * DESCRIPTION
25 * Test case to check the basic functionality of kill() when killing an
26 * entire process group with a negative pid.
27 *
28 * ALGORITHM
29 * call setup
30 * loop if the -i option was given
31 * fork 5 children
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 * kill06 [-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 = "kill06";
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(-getpgrp(), TEST_SIG));
121 sleep(300);
122
123 tst_resm(TINFO, "%d never received a"
124 " signal", getpid());
125 exit(exno);
126 } else {
127 waitpid(pid1, &status, 0);
128 if (TEST_RETURN != 0) {
129 tst_brkm(TFAIL, cleanup, "%s failed - errno = "
130 "%d : %s", TCID, TEST_ERRNO,
131 strerror(TEST_ERRNO));
132 }
133 }
134
135 /*
136 * Check to see if the process was terminated with the
137 * expected signal.
138 */
139 nsig = WTERMSIG(status);
140 if (!nsig) {
141 tst_resm(TFAIL, "Did not receive any signal");
142 } else if (nsig == TEST_SIG) {
143 tst_resm(TPASS, "received expected signal %d",
144 nsig);
145 } else {
146 tst_resm(TFAIL,
147 "expected signal %d received %d",
148 TEST_SIG, nsig);
149 }
150 }
151
152 cleanup();
153 tst_exit();
154 }
155
156 /*
157 * do_child()
158 */
do_child(void)159 void do_child(void)
160 {
161 int exno = 1;
162
163 sleep(299);
164
165 tst_resm(TINFO, "%d never received a" " signal", getpid());
166 exit(exno);
167 }
168
169 /*
170 * setup() - performs all ONE TIME setup for this test
171 */
setup(void)172 void setup(void)
173 {
174 /* Setup default signal handling */
175 tst_sig(FORK, DEF_HANDLER, cleanup);
176
177 TEST_PAUSE;
178 }
179
180 /*
181 * cleanup() - performs all the ONE TIME cleanup for this test at completion
182 * or premature exit.
183 */
cleanup(void)184 void cleanup(void)
185 {
186
187 }
188