1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/* SPDX-License-Identifier: LGPL-2.1+ */
#include <signal.h>
#include <unistd.h>
#include "log.h"
#include "macro.h"
#include "signal-util.h"
#include "stdio-util.h"
#include "string-util.h"
#include "process-util.h"
#define info(sig) log_info(#sig " = " STRINGIFY(sig) " = %d", sig)
static void test_rt_signals(void) {
info(SIGRTMIN);
info(SIGRTMAX);
/* We use signals SIGRTMIN+0 to SIGRTMIN+24 unconditionally */
assert(SIGRTMAX - SIGRTMIN >= 24);
}
static void test_signal_to_string_one(int val) {
const char *p;
assert_se(p = signal_to_string(val));
assert_se(signal_from_string(p) == val);
p = strjoina("SIG", p);
assert_se(signal_from_string(p) == val);
}
static void test_signal_from_string_one(const char *s, int val) {
const char *p;
assert_se(signal_from_string(s) == val);
p = strjoina("SIG", s);
assert_se(signal_from_string(p) == val);
}
static void test_signal_from_string_number(const char *s, int val) {
const char *p;
assert_se(signal_from_string(s) == val);
p = strjoina("SIG", s);
assert_se(signal_from_string(p) == -EINVAL);
}
static void test_signal_from_string(void) {
char buf[STRLEN("RTMIN+") + DECIMAL_STR_MAX(int) + 1];
test_signal_to_string_one(SIGHUP);
test_signal_to_string_one(SIGTERM);
test_signal_to_string_one(SIGRTMIN);
test_signal_to_string_one(SIGRTMIN+3);
test_signal_to_string_one(SIGRTMAX-4);
test_signal_from_string_one("RTMIN", SIGRTMIN);
test_signal_from_string_one("RTMAX", SIGRTMAX);
xsprintf(buf, "RTMIN+%d", SIGRTMAX-SIGRTMIN);
test_signal_from_string_one(buf, SIGRTMAX);
xsprintf(buf, "RTMIN+%d", INT_MAX);
test_signal_from_string_one(buf, -ERANGE);
xsprintf(buf, "RTMAX-%d", SIGRTMAX-SIGRTMIN);
test_signal_from_string_one(buf, SIGRTMIN);
xsprintf(buf, "RTMAX-%d", INT_MAX);
test_signal_from_string_one(buf, -ERANGE);
test_signal_from_string_one("", -EINVAL);
test_signal_from_string_one("hup", -EINVAL);
test_signal_from_string_one("HOGEHOGE", -EINVAL);
test_signal_from_string_one("RTMIN-5", -EINVAL);
test_signal_from_string_one("RTMIN- 5", -EINVAL);
test_signal_from_string_one("RTMIN -5", -EINVAL);
test_signal_from_string_one("RTMIN+ 5", -EINVAL);
test_signal_from_string_one("RTMIN +5", -EINVAL);
test_signal_from_string_one("RTMIN+100", -ERANGE);
test_signal_from_string_one("RTMIN+-3", -EINVAL);
test_signal_from_string_one("RTMIN++3", -EINVAL);
test_signal_from_string_one("RTMIN+HUP", -EINVAL);
test_signal_from_string_one("RTMIN3", -EINVAL);
test_signal_from_string_one("RTMAX+5", -EINVAL);
test_signal_from_string_one("RTMAX+ 5", -EINVAL);
test_signal_from_string_one("RTMAX +5", -EINVAL);
test_signal_from_string_one("RTMAX- 5", -EINVAL);
test_signal_from_string_one("RTMAX -5", -EINVAL);
test_signal_from_string_one("RTMAX-100", -ERANGE);
test_signal_from_string_one("RTMAX-+3", -EINVAL);
test_signal_from_string_one("RTMAX--3", -EINVAL);
test_signal_from_string_one("RTMAX-HUP", -EINVAL);
test_signal_from_string_number("3", 3);
test_signal_from_string_number("+5", 5);
test_signal_from_string_number(" +5", 5);
test_signal_from_string_number("10000", -ERANGE);
test_signal_from_string_number("-2", -ERANGE);
}
static void test_block_signals(void) {
sigset_t ss;
assert_se(sigprocmask(0, NULL, &ss) >= 0);
assert_se(sigismember(&ss, SIGUSR1) == 0);
assert_se(sigismember(&ss, SIGALRM) == 0);
assert_se(sigismember(&ss, SIGVTALRM) == 0);
{
BLOCK_SIGNALS(SIGUSR1, SIGVTALRM);
assert_se(sigprocmask(0, NULL, &ss) >= 0);
assert_se(sigismember(&ss, SIGUSR1) == 1);
assert_se(sigismember(&ss, SIGALRM) == 0);
assert_se(sigismember(&ss, SIGVTALRM) == 1);
}
assert_se(sigprocmask(0, NULL, &ss) >= 0);
assert_se(sigismember(&ss, SIGUSR1) == 0);
assert_se(sigismember(&ss, SIGALRM) == 0);
assert_se(sigismember(&ss, SIGVTALRM) == 0);
}
static void test_ignore_signals(void) {
assert_se(ignore_signals(SIGINT, -1) >= 0);
assert_se(kill(getpid_cached(), SIGINT) >= 0);
assert_se(ignore_signals(SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
assert_se(kill(getpid_cached(), SIGUSR1) >= 0);
assert_se(kill(getpid_cached(), SIGUSR2) >= 0);
assert_se(kill(getpid_cached(), SIGTERM) >= 0);
assert_se(kill(getpid_cached(), SIGPIPE) >= 0);
assert_se(default_signals(SIGINT, SIGUSR1, SIGUSR2, SIGTERM, SIGPIPE, -1) >= 0);
}
int main(int argc, char *argv[]) {
test_rt_signals();
test_signal_from_string();
test_block_signals();
test_ignore_signals();
return 0;
}
|
