1 /*
2  * Copyright (c) International Business Machines  Corp., 2001
3  *  07/2001 Ported by Wayne Boyer
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 Foundation,
17  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 /*
20  * Test Description:
21  *  pause() does not return due to receipt of SIGKILL signal and specified
22  *  process should be terminated.
23  */
24 #include <unistd.h>
25 #include <errno.h>
26 #include <fcntl.h>
27 #include <sys/wait.h>
28 
29 #include "test.h"
30 #include "safe_macros.h"
31 
32 static pid_t cpid;
33 
34 char *TCID = "pause03";
35 int TST_TOTAL = 1;
36 
37 static void do_child(void);
38 static void setup(void);
39 static void cleanup(void);
40 
41 int main(int ac, char **av)
42 {
43 	int lc;
44 	int status;
45 
46 	tst_parse_opts(ac, av, NULL, NULL);
47 #ifdef UCLINUX
48 	maybe_run_child(&do_child, "");
49 #endif
50 
51 	setup();
52 
53 	for (lc = 0; TEST_LOOPING(lc); lc++) {
54 		tst_count = 0;
55 
56 		if ((cpid = FORK_OR_VFORK()) == -1)
57 			tst_brkm(TBROK | TERRNO, NULL, "fork() failed");
58 
59 		if (cpid == 0) {
60 #ifdef UCLINUX
61 			if (self_exec(av[0], "") < 0)
62 				tst_brkm(TBROK, cleanup, "self_exec failed");
63 #else
64 			do_child();
65 #endif
66 		}
67 
68 		TST_PROCESS_STATE_WAIT(cleanup, cpid, 'S');
69 
70 		kill(cpid, SIGKILL);
71 
72 		SAFE_WAIT(NULL, &status);
73 
74 		if (WIFSIGNALED(status) && WTERMSIG(status) == SIGKILL) {
75 			tst_resm(TPASS, "pause() did not return after SIGKILL");
76 			continue;
77 		}
78 
79 		if (WIFSIGNALED(status)) {
80 			tst_resm(TFAIL, "child killed by %s unexpectedly",
81 			         tst_strsig(WTERMSIG(status)));
82 			continue;
83 		}
84 
85 		tst_resm(TFAIL, "child exited with %i", WEXITSTATUS(status));
86 	}
87 
88 	cleanup();
89 	tst_exit();
90 
91 }
92 
93 void do_child(void)
94 {
95 	TEST(pause());
96 
97 	tst_resm(TFAIL, "Unexpected return from pause()");
98 
99 	exit(0);
100 }
101 
102 void setup(void)
103 {
104 	tst_sig(FORK, DEF_HANDLER, cleanup);
105 
106 	TEST_PAUSE;
107 }
108 
109 
110 void cleanup(void)
111 {
112 	kill(cpid, SIGKILL);
113 }
114