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 "stdio-util.h"
18 //#include "string-util.h"
19 //#include "stdio-util.h"
20 //#include "string-util.h"
21 #include "process-util.h"
23 #define info(sig) log_info(#sig " = " STRINGIFY(sig) " = %d", sig)
25 static void test_rt_signals(void) {
29 /* We use signals SIGRTMIN+0 to SIGRTMIN+24 unconditionally */
30 assert(SIGRTMAX - SIGRTMIN >= 24);
33 static void test_signal_to_string_one(int val) {
36 assert_se(p = signal_to_string(val));
38 assert_se(signal_from_string(p) == val);
40 p = strjoina("SIG", p);
41 assert_se(signal_from_string(p) == val);
44 static void test_signal_from_string_one(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) == val);
53 static void test_signal_from_string_number(const char *s, int val) {
56 assert_se(signal_from_string(s) == val);
58 p = strjoina("SIG", s);
59 assert_se(signal_from_string(p) == -EINVAL);
62 static void test_signal_from_string(void) {
63 char buf[STRLEN("RTMIN+") + DECIMAL_STR_MAX(int) + 1];
65 test_signal_to_string_one(SIGHUP);
66 test_signal_to_string_one(SIGTERM);
67 test_signal_to_string_one(SIGRTMIN);
68 test_signal_to_string_one(SIGRTMIN+3);
69 test_signal_to_string_one(SIGRTMAX-4);
71 test_signal_from_string_one("RTMIN", SIGRTMIN);
72 test_signal_from_string_one("RTMAX", SIGRTMAX);
74 xsprintf(buf, "RTMIN+%d", SIGRTMAX-SIGRTMIN);
75 test_signal_from_string_one(buf, SIGRTMAX);
77 xsprintf(buf, "RTMIN+%d", INT_MAX);
78 test_signal_from_string_one(buf, -ERANGE);
80 xsprintf(buf, "RTMAX-%d", SIGRTMAX-SIGRTMIN);
81 test_signal_from_string_one(buf, SIGRTMIN);
83 xsprintf(buf, "RTMAX-%d", INT_MAX);
84 test_signal_from_string_one(buf, -ERANGE);
86 test_signal_from_string_one("", -EINVAL);
87 test_signal_from_string_one("hup", -EINVAL);
88 test_signal_from_string_one("HOGEHOGE", -EINVAL);
90 test_signal_from_string_one("RTMIN-5", -EINVAL);
91 test_signal_from_string_one("RTMIN- 5", -EINVAL);
92 test_signal_from_string_one("RTMIN -5", -EINVAL);
93 test_signal_from_string_one("RTMIN+ 5", -EINVAL);
94 test_signal_from_string_one("RTMIN +5", -EINVAL);
95 test_signal_from_string_one("RTMIN+100", -ERANGE);
96 test_signal_from_string_one("RTMIN+-3", -EINVAL);
97 test_signal_from_string_one("RTMIN++3", -EINVAL);
98 test_signal_from_string_one("RTMIN+HUP", -EINVAL);
99 test_signal_from_string_one("RTMIN3", -EINVAL);
101 test_signal_from_string_one("RTMAX+5", -EINVAL);
102 test_signal_from_string_one("RTMAX+ 5", -EINVAL);
103 test_signal_from_string_one("RTMAX +5", -EINVAL);
104 test_signal_from_string_one("RTMAX- 5", -EINVAL);
105 test_signal_from_string_one("RTMAX -5", -EINVAL);
106 test_signal_from_string_one("RTMAX-100", -ERANGE);
107 test_signal_from_string_one("RTMAX-+3", -EINVAL);
108 test_signal_from_string_one("RTMAX--3", -EINVAL);
109 test_signal_from_string_one("RTMAX-HUP", -EINVAL);
111 test_signal_from_string_number("3", 3);
112 test_signal_from_string_number("+5", 5);
113 test_signal_from_string_number(" +5", 5);
114 test_signal_from_string_number("10000", -ERANGE);
115 test_signal_from_string_number("-2", -ERANGE);
118 static void test_block_signals(void) {
121 assert_se(sigprocmask(0, NULL, &ss) >= 0);
123 assert_se(sigismember(&ss, SIGUSR1) == 0);
124 assert_se(sigismember(&ss, SIGALRM) == 0);
125 assert_se(sigismember(&ss, SIGVTALRM) == 0);
128 BLOCK_SIGNALS(SIGUSR1, SIGVTALRM);
130 assert_se(sigprocmask(0, NULL, &ss) >= 0);
131 assert_se(sigismember(&ss, SIGUSR1) == 1);
132 assert_se(sigismember(&ss, SIGALRM) == 0);
133 assert_se(sigismember(&ss, SIGVTALRM) == 1);
137 assert_se(sigprocmask(0, NULL, &ss) >= 0);
138 assert_se(sigismember(&ss, SIGUSR1) == 0);
139 assert_se(sigismember(&ss, SIGALRM) == 0);
140 assert_se(sigismember(&ss, SIGVTALRM) == 0);
143 static void test_ignore_signals(void) {
144 assert_se(ignore_signals(SIGINT, -1) >= 0);
145 assert_se(kill(getpid_cached(), SIGINT) >= 0);
146 assert_se(ignore_signals(SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
147 assert_se(kill(getpid_cached(), SIGUSR1) >= 0);
148 assert_se(kill(getpid_cached(), SIGUSR2) >= 0);
149 assert_se(kill(getpid_cached(), SIGTERM) >= 0);
150 assert_se(kill(getpid_cached(), SIGPIPE) >= 0);
151 assert_se(default_signals(SIGINT, SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
154 int main(int argc, char *argv[]) {
156 test_signal_from_string();
157 test_block_signals();
158 test_ignore_signals();