1/* $NetBSD: signal.h,v 1.59 2021/11/02 20:12:25 christos Exp $ */ 2 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 * @(#)signal.h 8.3 (Berkeley) 3/30/94 32 */ 33 34#ifndef _SIGNAL_H_ 35#define _SIGNAL_H_ 36 37#include <sys/cdefs.h> 38#include <sys/featuretest.h> 39 40#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 41 defined(_NETBSD_SOURCE) 42#include <sys/types.h> 43#endif 44 45#include <sys/signal.h> 46 47__BEGIN_DECLS 48#if defined(_NETBSD_SOURCE) 49extern const char *const *sys_signame __RENAME(__sys_signame14); 50#ifndef __SYS_SIGLIST_DECLARED 51#define __SYS_SIGLIST_DECLARED 52/* also in unistd.h */ 53extern const char *const *sys_siglist __RENAME(__sys_siglist14); 54#endif /* __SYS_SIGLIST_DECLARED */ 55extern const int sys_nsig __RENAME(__sys_nsig14); 56#endif 57 58int raise(int); 59 60#if defined(_NETBSD_SOURCE) 61const char *signalname(int); 62int signalnext(int); 63int signalnumber(const char *); 64#endif 65 66#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 67 defined(_NETBSD_SOURCE) 68int kill(pid_t, int); 69int __sigaction_siginfo(int, const struct sigaction * __restrict, 70 struct sigaction * __restrict); 71 72#if (_POSIX_C_SOURCE - 0L) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 73 defined(_NETBSD_SOURCE) 74int pthread_sigmask(int, const sigset_t * __restrict, 75 sigset_t * __restrict); 76int pthread_kill(pthread_t, int); 77int __libc_thr_sigsetmask(int, const sigset_t * __restrict, 78 sigset_t * __restrict); 79#ifndef __LIBPTHREAD_SOURCE__ 80#define pthread_sigmask __libc_thr_sigsetmask 81#endif /* __LIBPTHREAD_SOURCE__ */ 82#endif 83 84#ifndef __LIBC12_SOURCE__ 85int sigaction(int, const struct sigaction * __restrict, 86 struct sigaction * __restrict) __RENAME(__sigaction_siginfo); 87int sigaddset(sigset_t *, int) __RENAME(__sigaddset14); 88int sigdelset(sigset_t *, int) __RENAME(__sigdelset14); 89int sigemptyset(sigset_t *) __RENAME(__sigemptyset14); 90int sigfillset(sigset_t *) __RENAME(__sigfillset14); 91int sigismember(const sigset_t *, int) __RENAME(__sigismember14); 92int sigpending(sigset_t *) __RENAME(__sigpending14); 93int sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict) 94 __RENAME(__sigprocmask14); 95int sigsuspend(const sigset_t *) __RENAME(__sigsuspend14); 96 97#if defined(__c99inline) || defined(__SIGSETOPS_BODY) 98 99#if defined(__SIGSETOPS_BODY) 100#undef __c99inline 101#define __c99inline 102#endif 103 104/* note: this appears in both errno.h and signal.h */ 105#ifndef __errno 106int *__errno(void); 107#define __errno __errno 108#endif 109 110/* the same as "errno" - but signal.h is not allowed to define that */ 111#ifndef ___errno 112#define ___errno (*__errno()) 113#endif 114 115__c99inline int 116sigaddset(sigset_t *set, int signo) 117{ 118 if (signo <= 0 || signo >= _NSIG) { 119 ___errno = 22; /* EINVAL */ 120 return (-1); 121 } 122 __sigaddset(set, signo); 123 return (0); 124} 125 126__c99inline int 127sigdelset(sigset_t *set, int signo) 128{ 129 if (signo <= 0 || signo >= _NSIG) { 130 ___errno = 22; /* EINVAL */ 131 return (-1); 132 } 133 __sigdelset(set, signo); 134 return (0); 135} 136 137__c99inline int 138sigismember(const sigset_t *set, int signo) 139{ 140 if (signo <= 0 || signo >= _NSIG) { 141 ___errno = 22; /* EINVAL */ 142 return (-1); 143 } 144 return (__sigismember(set, signo)); 145} 146 147__c99inline int 148sigemptyset(sigset_t *set) 149{ 150 __sigemptyset(set); 151 return (0); 152} 153 154__c99inline int 155sigfillset(sigset_t *set) 156{ 157 __sigfillset(set); 158 return (0); 159} 160#endif /* __c99inline */ 161#endif /* !__LIBC12_SOURCE__ */ 162 163/* 164 * X/Open CAE Specification Issue 4 Version 2 165 */ 166#if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 167 (_XOPEN_SOURCE - 0) >= 500 || (_POSIX_C_SOURCE - 0) >= 200809L || \ 168 defined(_NETBSD_SOURCE) 169int killpg(pid_t, int); 170int siginterrupt(int, int); 171int sigstack(const struct sigstack *, struct sigstack *); 172#ifndef __LIBC12_SOURCE__ 173int sigaltstack(const stack_t * __restrict, stack_t * __restrict) 174 __RENAME(__sigaltstack14); 175#endif 176int sighold(int); 177int sigignore(int); 178int sigpause(int); 179int sigrelse(int); 180void (*sigset (int, void (*)(int)))(int); 181#endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 182 * || _POSIX_C_SOURCE >= 200809L || _NETBSD_SOURCE 183 */ 184 185 186/* 187 * X/Open CAE Specification Issue 5; IEEE Std 1003.1b-1993 (POSIX) 188 */ 189#if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \ 190 defined(_NETBSD_SOURCE) 191int sigwait (const sigset_t * __restrict, int * __restrict); 192int sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict); 193void psiginfo(const siginfo_t *, const char *); 194 195#ifndef __LIBC12_SOURCE__ 196#include <sys/timespec.h> 197int sigtimedwait(const sigset_t * __restrict, 198 siginfo_t * __restrict, const struct timespec * __restrict) 199 __RENAME(__sigtimedwait50); 200int __sigtimedwait(const sigset_t * __restrict, 201 siginfo_t * __restrict, struct timespec * __restrict) 202 __RENAME(____sigtimedwait50); 203#endif 204#endif /* _POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE_EXTENDED || ... */ 205 206 207#if defined(_NETBSD_SOURCE) 208#ifndef __PSIGNAL_DECLARED 209#define __PSIGNAL_DECLARED 210/* also in unistd.h */ 211void psignal(int, const char *); 212#endif /* __PSIGNAL_DECLARED */ 213int sigblock(int); 214int sigsetmask(int); 215#endif /* _NETBSD_SOURCE */ 216 217int __sigtramp_check_np(void *); 218 219#endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 220__END_DECLS 221 222#endif /* !_SIGNAL_H_ */ 223