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git.ipfire.org Git - thirdparty/systemd.git/blob - src/test/test-signal-util.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
8 #include "signal-util.h"
9 #include "stdio-util.h"
10 #include "string-util.h"
11 #include "process-util.h"
13 #define info(sig) log_info(#sig " = " STRINGIFY(sig) " = %d", sig)
15 static void test_rt_signals(void) {
19 /* We use signals SIGRTMIN+0 to SIGRTMIN+24 unconditionally */
20 assert(SIGRTMAX
- SIGRTMIN
>= 24);
23 static void test_signal_to_string_one(int val
) {
26 assert_se(p
= signal_to_string(val
));
28 assert_se(signal_from_string(p
) == val
);
30 p
= strjoina("SIG", p
);
31 assert_se(signal_from_string(p
) == val
);
34 static void test_signal_from_string_one(const char *s
, int val
) {
37 assert_se(signal_from_string(s
) == val
);
39 p
= strjoina("SIG", s
);
40 assert_se(signal_from_string(p
) == val
);
43 static void test_signal_from_string_number(const char *s
, int val
) {
46 assert_se(signal_from_string(s
) == val
);
48 p
= strjoina("SIG", s
);
49 assert_se(signal_from_string(p
) == -EINVAL
);
52 static void test_signal_from_string(void) {
53 char buf
[STRLEN("RTMIN+") + DECIMAL_STR_MAX(int) + 1];
55 test_signal_to_string_one(SIGHUP
);
56 test_signal_to_string_one(SIGTERM
);
57 test_signal_to_string_one(SIGRTMIN
);
58 test_signal_to_string_one(SIGRTMIN
+3);
59 test_signal_to_string_one(SIGRTMAX
-4);
61 test_signal_from_string_one("RTMIN", SIGRTMIN
);
62 test_signal_from_string_one("RTMAX", SIGRTMAX
);
64 xsprintf(buf
, "RTMIN+%d", SIGRTMAX
-SIGRTMIN
);
65 test_signal_from_string_one(buf
, SIGRTMAX
);
67 xsprintf(buf
, "RTMIN+%d", INT_MAX
);
68 test_signal_from_string_one(buf
, -ERANGE
);
70 xsprintf(buf
, "RTMAX-%d", SIGRTMAX
-SIGRTMIN
);
71 test_signal_from_string_one(buf
, SIGRTMIN
);
73 xsprintf(buf
, "RTMAX-%d", INT_MAX
);
74 test_signal_from_string_one(buf
, -ERANGE
);
76 test_signal_from_string_one("", -EINVAL
);
77 test_signal_from_string_one("hup", -EINVAL
);
78 test_signal_from_string_one("HOGEHOGE", -EINVAL
);
80 test_signal_from_string_one("RTMIN-5", -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+100", -ERANGE
);
86 test_signal_from_string_one("RTMIN+-3", -EINVAL
);
87 test_signal_from_string_one("RTMIN++3", -EINVAL
);
88 test_signal_from_string_one("RTMIN+HUP", -EINVAL
);
89 test_signal_from_string_one("RTMIN3", -EINVAL
);
91 test_signal_from_string_one("RTMAX+5", -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-100", -ERANGE
);
97 test_signal_from_string_one("RTMAX-+3", -EINVAL
);
98 test_signal_from_string_one("RTMAX--3", -EINVAL
);
99 test_signal_from_string_one("RTMAX-HUP", -EINVAL
);
101 test_signal_from_string_number("3", 3);
102 test_signal_from_string_number("+5", 5);
103 test_signal_from_string_number(" +5", 5);
104 test_signal_from_string_number("10000", -ERANGE
);
105 test_signal_from_string_number("-2", -ERANGE
);
108 static void test_block_signals(void) {
111 assert_se(sigprocmask(0, NULL
, &ss
) >= 0);
113 assert_se(sigismember(&ss
, SIGUSR1
) == 0);
114 assert_se(sigismember(&ss
, SIGALRM
) == 0);
115 assert_se(sigismember(&ss
, SIGVTALRM
) == 0);
118 BLOCK_SIGNALS(SIGUSR1
, SIGVTALRM
);
120 assert_se(sigprocmask(0, NULL
, &ss
) >= 0);
121 assert_se(sigismember(&ss
, SIGUSR1
) == 1);
122 assert_se(sigismember(&ss
, SIGALRM
) == 0);
123 assert_se(sigismember(&ss
, SIGVTALRM
) == 1);
127 assert_se(sigprocmask(0, NULL
, &ss
) >= 0);
128 assert_se(sigismember(&ss
, SIGUSR1
) == 0);
129 assert_se(sigismember(&ss
, SIGALRM
) == 0);
130 assert_se(sigismember(&ss
, SIGVTALRM
) == 0);
133 static void test_ignore_signals(void) {
134 assert_se(ignore_signals(SIGINT
, -1) >= 0);
135 assert_se(kill(getpid_cached(), SIGINT
) >= 0);
136 assert_se(ignore_signals(SIGUSR1
, SIGUSR2
, SIGTERM
, SIGPIPE
, -1) >= 0);
137 assert_se(kill(getpid_cached(), SIGUSR1
) >= 0);
138 assert_se(kill(getpid_cached(), SIGUSR2
) >= 0);
139 assert_se(kill(getpid_cached(), SIGTERM
) >= 0);
140 assert_se(kill(getpid_cached(), SIGPIPE
) >= 0);
141 assert_se(default_signals(SIGINT
, SIGUSR1
, SIGUSR2
, SIGTERM
, SIGPIPE
, -1) >= 0);
144 int main(int argc
, char *argv
[]) {
146 test_signal_from_string();
147 test_block_signals();
148 test_ignore_signals();