1 /* sig2str.h -- convert between signal names and numbers
2
3 Copyright (C) 2002, 2005, 2009-2023 Free Software Foundation, Inc.
4
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17
18 /* Written by Paul Eggert. */
19
20 #include <signal.h>
21
22 /* Don't override system declarations of SIG2STR_MAX, sig2str, str2sig. */
23 #ifndef SIG2STR_MAX
24
25 # include "intprops.h"
26
27 /* Size of a buffer needed to hold a signal name like "HUP". */
28 # define SIG2STR_MAX (sizeof "SIGRTMAX" + INT_STRLEN_BOUND (int) - 1)
29
30 #ifdef __cplusplus
31 extern "C" {
32 #endif
33
34 int sig2str (int, char *);
35 int str2sig (char const *, int *);
36
37 #ifdef __cplusplus
38 }
39 #endif
40
41 #endif
42
43 /* An upper bound on signal numbers allowed by the system. */
44
45 #if defined _sys_nsig
46 # define SIGNUM_BOUND (_sys_nsig - 1)
47 #elif defined _SIG_MAXSIG
48 # define SIGNUM_BOUND (_SIG_MAXSIG - 2) /* FreeBSD >= 7. */
49 #elif defined NSIG
50 # define SIGNUM_BOUND (NSIG - 1)
51 #else
52 # define SIGNUM_BOUND 64
53 #endif