1 /* SPDX-License-Identifier: LGPL-2.1+ */
8 #include "signal-util.h"
9 #include "stdio-util.h"
10 #include "string-util.h"
11 /// Additional includes needed by elogind
12 #include "process-util.h"
14 #define info(sig) log_info(#sig " = " STRINGIFY(sig) " = %d", sig)
16 static void test_rt_signals(void) {
20 /* We use signals SIGRTMIN+0 to SIGRTMIN+24 unconditionally */
21 assert(SIGRTMAX - SIGRTMIN >= 24);
24 static void test_signal_to_string_one(int val) {
27 assert_se(p = signal_to_string(val));
29 assert_se(signal_from_string(p) == val);
31 p = strjoina("SIG", p);
32 assert_se(signal_from_string(p) == val);
35 static void test_signal_from_string_one(const char *s, int val) {
38 assert_se(signal_from_string(s) == val);
40 p = strjoina("SIG", s);
41 assert_se(signal_from_string(p) == val);
44 static void test_signal_from_string_number(const char *s, int val) {
47 assert_se(signal_from_string(s) == val);
49 p = strjoina("SIG", s);
50 assert_se(signal_from_string(p) == -EINVAL);
53 static void test_signal_from_string(void) {
54 char buf[STRLEN("RTMIN+") + DECIMAL_STR_MAX(int) + 1];
56 test_signal_to_string_one(SIGHUP);
57 test_signal_to_string_one(SIGTERM);
58 test_signal_to_string_one(SIGRTMIN);
59 test_signal_to_string_one(SIGRTMIN+3);
60 test_signal_to_string_one(SIGRTMAX-4);
62 test_signal_from_string_one("RTMIN", SIGRTMIN);
63 test_signal_from_string_one("RTMAX", SIGRTMAX);
65 xsprintf(buf, "RTMIN+%d", SIGRTMAX-SIGRTMIN);
66 test_signal_from_string_one(buf, SIGRTMAX);
68 xsprintf(buf, "RTMIN+%d", INT_MAX);
69 test_signal_from_string_one(buf, -ERANGE);
71 xsprintf(buf, "RTMAX-%d", SIGRTMAX-SIGRTMIN);
72 test_signal_from_string_one(buf, SIGRTMIN);
74 xsprintf(buf, "RTMAX-%d", INT_MAX);
75 test_signal_from_string_one(buf, -ERANGE);
77 test_signal_from_string_one("", -EINVAL);
78 test_signal_from_string_one("hup", -EINVAL);
79 test_signal_from_string_one("HOGEHOGE", -EINVAL);
81 test_signal_from_string_one("RTMIN-5", -EINVAL);
82 test_signal_from_string_one("RTMIN- 5", -EINVAL);
83 test_signal_from_string_one("RTMIN -5", -EINVAL);
84 test_signal_from_string_one("RTMIN+ 5", -EINVAL);
85 test_signal_from_string_one("RTMIN +5", -EINVAL);
86 test_signal_from_string_one("RTMIN+100", -ERANGE);
87 test_signal_from_string_one("RTMIN+-3", -EINVAL);
88 test_signal_from_string_one("RTMIN++3", -EINVAL);
89 test_signal_from_string_one("RTMIN+HUP", -EINVAL);
90 test_signal_from_string_one("RTMIN3", -EINVAL);
92 test_signal_from_string_one("RTMAX+5", -EINVAL);
93 test_signal_from_string_one("RTMAX+ 5", -EINVAL);
94 test_signal_from_string_one("RTMAX +5", -EINVAL);
95 test_signal_from_string_one("RTMAX- 5", -EINVAL);
96 test_signal_from_string_one("RTMAX -5", -EINVAL);
97 test_signal_from_string_one("RTMAX-100", -ERANGE);
98 test_signal_from_string_one("RTMAX-+3", -EINVAL);
99 test_signal_from_string_one("RTMAX--3", -EINVAL);
100 test_signal_from_string_one("RTMAX-HUP", -EINVAL);
102 test_signal_from_string_number("3", 3);
103 test_signal_from_string_number("+5", 5);
104 test_signal_from_string_number(" +5", 5);
105 test_signal_from_string_number("10000", -ERANGE);
106 test_signal_from_string_number("-2", -ERANGE);
109 static void test_block_signals(void) {
112 assert_se(sigprocmask(0, NULL, &ss) >= 0);
114 assert_se(sigismember(&ss, SIGUSR1) == 0);
115 assert_se(sigismember(&ss, SIGALRM) == 0);
116 assert_se(sigismember(&ss, SIGVTALRM) == 0);
119 BLOCK_SIGNALS(SIGUSR1, SIGVTALRM);
121 assert_se(sigprocmask(0, NULL, &ss) >= 0);
122 assert_se(sigismember(&ss, SIGUSR1) == 1);
123 assert_se(sigismember(&ss, SIGALRM) == 0);
124 assert_se(sigismember(&ss, SIGVTALRM) == 1);
128 assert_se(sigprocmask(0, NULL, &ss) >= 0);
129 assert_se(sigismember(&ss, SIGUSR1) == 0);
130 assert_se(sigismember(&ss, SIGALRM) == 0);
131 assert_se(sigismember(&ss, SIGVTALRM) == 0);
134 static void test_ignore_signals(void) {
135 assert_se(ignore_signals(SIGINT, -1) >= 0);
136 assert_se(kill(getpid_cached(), SIGINT) >= 0);
137 assert_se(ignore_signals(SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
138 assert_se(kill(getpid_cached(), SIGUSR1) >= 0);
139 assert_se(kill(getpid_cached(), SIGUSR2) >= 0);
140 assert_se(kill(getpid_cached(), SIGTERM) >= 0);
141 assert_se(kill(getpid_cached(), SIGPIPE) >= 0);
142 assert_se(default_signals(SIGINT, SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
145 int main(int argc, char *argv[]) {
147 test_signal_from_string();
148 test_block_signals();
149 test_ignore_signals();