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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
24882e06 LP |
2 | #pragma once |
3 | ||
4 | /*** | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2010-2015 Lennart Poettering | |
24882e06 LP |
8 | ***/ |
9 | ||
10 | #include <signal.h> | |
11 | ||
12 | #include "macro.h" | |
13 | ||
14 | int reset_all_signal_handlers(void); | |
15 | int reset_signal_mask(void); | |
16 | ||
17 | int ignore_signals(int sig, ...); | |
18 | int default_signals(int sig, ...); | |
19 | int sigaction_many(const struct sigaction *sa, ...); | |
20 | ||
0c2c2a3a | 21 | int sigset_add_many(sigset_t *ss, ...); |
72c0a2c2 | 22 | int sigprocmask_many(int how, sigset_t *old, ...); |
24882e06 LP |
23 | |
24 | const char *signal_to_string(int i) _const_; | |
25 | int signal_from_string(const char *s) _pure_; | |
26 | ||
27 | int signal_from_string_try_harder(const char *s); | |
6bedfcbb LP |
28 | |
29 | void nop_signal_handler(int sig); | |
0c5eb056 LP |
30 | |
31 | static inline void block_signals_reset(sigset_t *ss) { | |
32 | assert_se(sigprocmask(SIG_SETMASK, ss, NULL) >= 0); | |
33 | } | |
34 | ||
7c78959f LP |
35 | #define BLOCK_SIGNALS(...) \ |
36 | _cleanup_(block_signals_reset) _unused_ sigset_t _saved_sigset = ({ \ | |
37 | sigset_t _t; \ | |
38 | assert_se(sigprocmask_many(SIG_BLOCK, &_t, __VA_ARGS__, -1) >= 0); \ | |
39 | _t; \ | |
0c5eb056 | 40 | }) |
6eb7c172 LP |
41 | |
42 | static inline bool SIGNAL_VALID(int signo) { | |
43 | return signo > 0 && signo < _NSIG; | |
44 | } | |
33d12153 YW |
45 | |
46 | static inline const char* signal_to_string_with_check(int n) { | |
47 | if (!SIGNAL_VALID(n)) | |
48 | return NULL; | |
49 | ||
50 | return signal_to_string(n); | |
51 | } |