1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#ifndef _SIGNAL_H_
33#define _SIGNAL_H_
34
35#include <sys/cdefs.h>
36#include <sys/_types.h>
37#include <sys/signal.h>
38#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
39#include <machine/ucontext.h>
40#include <sys/_ucontext.h>
41#endif
42
43#if __POSIX_VISIBLE >= 202405 || __BSD_VISIBLE
44#define SIG2STR_MAX 32 /* size of buffer required for sig2str() */
45#endif
46
47__NULLABILITY_PRAGMA_PUSH
48
49#if __BSD_VISIBLE
50/*
51 * XXX should enlarge these, if only to give empty names instead of bounds
52 * errors for large signal numbers.
53 */
54extern const char * const sys_signame[NSIG];
55extern const char * const sys_siglist[NSIG];
56extern const int sys_nsig;
57#endif
58
59#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
60#ifndef _PID_T_DECLARED
61typedef __pid_t pid_t;
62#define _PID_T_DECLARED
63#endif
64#endif
65
66#if __POSIX_VISIBLE || __XSI_VISIBLE
67struct pthread; /* XXX */
68typedef struct pthread *__pthread_t;
69#if !defined(_PTHREAD_T_DECLARED) && __POSIX_VISIBLE >= 200809
70typedef __pthread_t pthread_t;
71#define _PTHREAD_T_DECLARED
72#endif
73#endif /* __POSIX_VISIBLE || __XSI_VISIBLE */
74
75// zig patch: ssp/signal.h header was added in FreeBSD 15
76#if __FreeBSD_version >= 1500500
77#if !defined(_STANDALONE) && defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0
78#include <ssp/signal.h>
79#endif
80#endif
81
82__BEGIN_DECLS
83int raise(int);
84
85#if __POSIX_VISIBLE || __XSI_VISIBLE
86int kill(__pid_t, int);
87int pthread_kill(__pthread_t, int);
88int pthread_sigmask(int, const __sigset_t * __restrict,
89 __sigset_t * __restrict);
90int sigaction(int, const struct sigaction * __restrict,
91 struct sigaction * __restrict);
92int sigaddset(sigset_t *, int);
93int sigdelset(sigset_t *, int);
94int sigemptyset(sigset_t *);
95int sigfillset(sigset_t *);
96int sigismember(const sigset_t *, int);
97int sigpending(sigset_t * _Nonnull);
98int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
99int sigsuspend(const sigset_t * _Nonnull);
100int sigwait(const sigset_t * _Nonnull __restrict,
101 int * _Nonnull __restrict);
102#endif
103
104#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600
105int sigqueue(__pid_t, int, const union sigval);
106
107struct timespec;
108int sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
109 const struct timespec * __restrict);
110int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
111#endif
112
113#if __XSI_VISIBLE
114int killpg(__pid_t, int);
115int sigaltstack(const stack_t * __restrict, stack_t * __restrict);
116int sighold(int);
117int sigignore(int);
118int sigpause(int);
119int sigrelse(int);
120void (* _Nullable sigset(int, void (* _Nullable)(int)))(int);
121int xsi_sigpause(int);
122#endif
123
124#if __XSI_VISIBLE >= 600
125int siginterrupt(int, int);
126#endif
127
128#if __POSIX_VISIBLE >= 200809
129void psiginfo(const siginfo_t *, const char *);
130void psignal(int, const char *);
131#endif
132
133#if __POSIX_VISIBLE >= 202405 || __BSD_VISIBLE
134int sig2str(int, char *);
135int str2sig(const char * __restrict, int * __restrict);
136#endif
137
138#if __BSD_VISIBLE
139int sigandset(sigset_t *dest, const sigset_t *left, const sigset_t *right);
140int sigblock(int);
141int sigisemptyset(const sigset_t *set);
142int sigorset(sigset_t *dest, const sigset_t *left, const sigset_t *right);
143int sigreturn(const struct __ucontext *);
144int sigsetmask(int);
145int sigstack(const struct sigstack *, struct sigstack *);
146int sigvec(int, struct sigvec *, struct sigvec *);
147#endif
148__END_DECLS
149__NULLABILITY_PRAGMA_POP
150
151#endif /* !_SIGNAL_H_ */