1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright 2016 Lennart Poettering
13 #include "signal-util.h"
14 /// Additional includes needed by elogind
15 //#include "stdio-util.h"
16 //#include "string-util.h"
17 #include "process-util.h"
19 #define info(sig) log_info(#sig " = " STRINGIFY(sig) " = %d", sig)
21 static void test_rt_signals(void) {
25 /* We use signals SIGRTMIN+0 to SIGRTMIN+24 unconditionally */
26 assert(SIGRTMAX - SIGRTMIN >= 24);
29 static void test_signal_to_string_one(int val) {
32 assert_se(p = signal_to_string(val));
34 assert_se(signal_from_string(p) == val);
36 p = strjoina("SIG", p);
37 assert_se(signal_from_string(p) == val);
40 static void test_signal_from_string_one(const char *s, int val) {
43 assert_se(signal_from_string(s) == val);
45 p = strjoina("SIG", s);
46 assert_se(signal_from_string(p) == val);
49 static void test_signal_from_string_number(const char *s, int val) {
52 assert_se(signal_from_string(s) == val);
54 p = strjoina("SIG", s);
55 assert_se(signal_from_string(p) == -EINVAL);
58 static void test_signal_from_string(void) {
59 char buf[STRLEN("RTMIN+") + DECIMAL_STR_MAX(int) + 1];
61 test_signal_to_string_one(SIGHUP);
62 test_signal_to_string_one(SIGTERM);
63 test_signal_to_string_one(SIGRTMIN);
64 test_signal_to_string_one(SIGRTMIN+3);
65 test_signal_to_string_one(SIGRTMAX-4);
67 test_signal_from_string_one("RTMIN", SIGRTMIN);
68 test_signal_from_string_one("RTMAX", SIGRTMAX);
70 xsprintf(buf, "RTMIN+%d", SIGRTMAX-SIGRTMIN);
71 test_signal_from_string_one(buf, SIGRTMAX);
73 xsprintf(buf, "RTMIN+%d", INT_MAX);
74 test_signal_from_string_one(buf, -ERANGE);
76 xsprintf(buf, "RTMAX-%d", SIGRTMAX-SIGRTMIN);
77 test_signal_from_string_one(buf, SIGRTMIN);
79 xsprintf(buf, "RTMAX-%d", INT_MAX);
80 test_signal_from_string_one(buf, -ERANGE);
82 test_signal_from_string_one("", -EINVAL);
83 test_signal_from_string_one("hup", -EINVAL);
84 test_signal_from_string_one("HOGEHOGE", -EINVAL);
86 test_signal_from_string_one("RTMIN-5", -EINVAL);
87 test_signal_from_string_one("RTMIN- 5", -EINVAL);
88 test_signal_from_string_one("RTMIN -5", -EINVAL);
89 test_signal_from_string_one("RTMIN+ 5", -EINVAL);
90 test_signal_from_string_one("RTMIN +5", -EINVAL);
91 test_signal_from_string_one("RTMIN+100", -ERANGE);
92 test_signal_from_string_one("RTMIN+-3", -EINVAL);
93 test_signal_from_string_one("RTMIN++3", -EINVAL);
94 test_signal_from_string_one("RTMIN+HUP", -EINVAL);
95 test_signal_from_string_one("RTMIN3", -EINVAL);
97 test_signal_from_string_one("RTMAX+5", -EINVAL);
98 test_signal_from_string_one("RTMAX+ 5", -EINVAL);
99 test_signal_from_string_one("RTMAX +5", -EINVAL);
100 test_signal_from_string_one("RTMAX- 5", -EINVAL);
101 test_signal_from_string_one("RTMAX -5", -EINVAL);
102 test_signal_from_string_one("RTMAX-100", -ERANGE);
103 test_signal_from_string_one("RTMAX-+3", -EINVAL);
104 test_signal_from_string_one("RTMAX--3", -EINVAL);
105 test_signal_from_string_one("RTMAX-HUP", -EINVAL);
107 test_signal_from_string_number("3", 3);
108 test_signal_from_string_number("+5", 5);
109 test_signal_from_string_number(" +5", 5);
110 test_signal_from_string_number("10000", -ERANGE);
111 test_signal_from_string_number("-2", -ERANGE);
114 static void test_block_signals(void) {
117 assert_se(sigprocmask(0, NULL, &ss) >= 0);
119 assert_se(sigismember(&ss, SIGUSR1) == 0);
120 assert_se(sigismember(&ss, SIGALRM) == 0);
121 assert_se(sigismember(&ss, SIGVTALRM) == 0);
124 BLOCK_SIGNALS(SIGUSR1, SIGVTALRM);
126 assert_se(sigprocmask(0, NULL, &ss) >= 0);
127 assert_se(sigismember(&ss, SIGUSR1) == 1);
128 assert_se(sigismember(&ss, SIGALRM) == 0);
129 assert_se(sigismember(&ss, SIGVTALRM) == 1);
133 assert_se(sigprocmask(0, NULL, &ss) >= 0);
134 assert_se(sigismember(&ss, SIGUSR1) == 0);
135 assert_se(sigismember(&ss, SIGALRM) == 0);
136 assert_se(sigismember(&ss, SIGVTALRM) == 0);
139 static void test_ignore_signals(void) {
140 assert_se(ignore_signals(SIGINT, -1) >= 0);
141 assert_se(kill(getpid_cached(), SIGINT) >= 0);
142 assert_se(ignore_signals(SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
143 assert_se(kill(getpid_cached(), SIGUSR1) >= 0);
144 assert_se(kill(getpid_cached(), SIGUSR2) >= 0);
145 assert_se(kill(getpid_cached(), SIGTERM) >= 0);
146 assert_se(kill(getpid_cached(), SIGPIPE) >= 0);
147 assert_se(default_signals(SIGINT, SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
150 int main(int argc, char *argv[]) {
152 test_signal_from_string();
153 test_block_signals();
154 test_ignore_signals();