1 /*
2 * Copyright (c) 2002, Intel Corporation. All rights reserved.
3 * Created by: julie.n.fleischer REMOVE-THIS AT intel DOT com
4 * This file is licensed under the GPL license. For the full content
5 * of this license, see the COPYING file at the top level of this
6 * source tree.
7
8 * Test that the sigpending() function stores the set of signals that
9 * are blocked from delivery when there are signals blocked both
10 * in the main function and in the signal handler.
11 * 1) Block two signals from delivery to main process.
12 * 2) Block three signals from delivery to a signal handler.
13 * 3) Raise the signal to get into that signal handler.
14 * From the signal handler:
15 * 4) Raise one blocked signal in the signal handler.
16 * 5) Raise one blocked signal in the main process.
17 * 5) Verify that the two signals raised are shown via sigpending.
18 * 6) Verify the three signals not raised are not shown.
19 */
20
21 /*
22 * Copyright (c) 2002, Intel Corporation. All rights reserved.
23 * Created by: julie.n.fleischer REMOVE-THIS AT intel DOT com
24 * This file is licensed under the GPL license. For the full content
25 * of this license, see the COPYING file at the top level of this
26 * source tree.
27
28 * Signal handler uses exit() to leave so that the signals are not executed.
29 */
30
31 #include <signal.h>
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include "posixtest.h"
35
handler(int signo PTS_ATTRIBUTE_UNUSED)36 static void handler(int signo PTS_ATTRIBUTE_UNUSED)
37 {
38 sigset_t pendingset;
39
40 if (sigemptyset(&pendingset) == -1) {
41 printf("Could not call sigemptyset()\n");
42 exit(-1);
43 }
44 if (raise(SIGUSR2) != 0) {
45 printf("Could not raise SIGUSR2\n");
46 exit(-1);
47 }
48 if (raise(SIGCONT) != 0) {
49 printf("Could not raise SIGCONT\n");
50 exit(-1);
51 }
52
53 if (sigpending(&pendingset) == -1) {
54 printf("Error calling sigpending()\n");
55 exit(-1);
56 }
57
58 if (sigismember(&pendingset, SIGUSR2) == 1 &&
59 sigismember(&pendingset, SIGCONT) == 1) {
60 printf("All pending signals found\n");
61 if ((sigismember(&pendingset, SIGHUP) == 0) &&
62 (sigismember(&pendingset, SIGABRT) == 0) &&
63 (sigismember(&pendingset, SIGUSR1) == 0)) {
64 printf("Unsent signals not found\n");
65 printf("Test PASSED\n");
66 exit(0);
67 } else {
68 printf("Error with unsent signals\n");
69 printf("Test FAILED\n");
70 exit(-1);
71 }
72 } else {
73 printf("Error with send signals\n");
74 printf("Test FAILED\n");
75 exit(-1);
76 }
77 }
78
main(void)79 int main(void)
80 {
81 sigset_t blockset;
82 sigset_t prevset;
83 struct sigaction act;
84
85 act.sa_handler = handler;
86 act.sa_flags = 0;
87
88 if ((sigemptyset(&blockset) == -1) ||
89 (sigemptyset(&prevset) == -1) ||
90 (sigemptyset(&act.sa_mask) == -1)) {
91 printf("Could not call sigemptyset()\n");
92 return PTS_UNRESOLVED;
93 }
94
95 if ((sigaddset(&blockset, SIGUSR2) == -1) ||
96 (sigaddset(&blockset, SIGHUP) == -1)) {
97 perror("Error calling sigaddset()\n");
98 return PTS_UNRESOLVED;
99 }
100
101 if (sigprocmask(SIG_SETMASK, &blockset, &prevset) == -1) {
102 printf("Could not call sigprocmask()\n");
103 return PTS_UNRESOLVED;
104 }
105
106 if ((sigaddset(&act.sa_mask, SIGCONT) == -1) ||
107 (sigaddset(&act.sa_mask, SIGABRT) == -1) ||
108 (sigaddset(&act.sa_mask, SIGUSR1) == -1)) {
109 perror("Error calling sigaddset()\n");
110 return PTS_UNRESOLVED;
111 }
112
113 if (sigaction(SIGTTOU, &act, 0) == -1) {
114 perror("Could not call sigaction()");
115 return PTS_UNRESOLVED;
116 }
117
118 if (raise(SIGTTOU) == -1) {
119 perror("Could not raise SIGTTOU");
120 return PTS_UNRESOLVED;
121 }
122 printf("This code should not be reachable\n");
123 return PTS_UNRESOLVED;
124 }
125