1 /* $NetBSD: signal.h,v 1.36 2003/09/12 20:27:50 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 #if defined(_NETBSD_SOURCE) 48 extern __const char *__const *sys_signame __RENAME(__sys_signame14); 49 #ifndef __SYS_SIGLIST_DECLARED 50 #define __SYS_SIGLIST_DECLARED 51 /* also in unistd.h */ 52 extern __const char *__const *sys_siglist __RENAME(__sys_siglist14); 53 #endif /* __SYS_SIGLIST_DECLARED */ 54 extern __const int sys_nsig __RENAME(__sys_nsig14); 55 #endif 56 57 __BEGIN_DECLS 58 int raise __P((int)); 59 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 60 defined(_NETBSD_SOURCE) 61 int kill __P((pid_t, int)); 62 int __libc_sigaction14 __P((int, const struct sigaction *, 63 struct sigaction *)); 64 65 #if (_POSIX_C_SOURCE - 0L) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 66 defined(_NETBSD_SOURCE) 67 int pthread_sigmask __P((int, const sigset_t *, sigset_t *)); 68 int pthread_kill __P((pthread_t, int)); 69 #endif 70 71 #ifdef __LIBC12_SOURCE__ 72 int sigaction __P((int, const struct sigaction13 *, struct sigaction13 *)); 73 int __sigaction14 __P((int, const struct sigaction *, struct sigaction *)); 74 int sigaddset __P((sigset13_t *, int)); 75 int __sigaddset14 __P((sigset_t *, int)); 76 int sigdelset __P((sigset13_t *, int)); 77 int __sigdelset14 __P((sigset_t *, int)); 78 int sigemptyset __P((sigset13_t *)); 79 int __sigemptyset14 __P((sigset_t *)); 80 int sigfillset __P((sigset13_t *)); 81 int __sigfillset14 __P((sigset_t *)); 82 int sigismember __P((const sigset13_t *, int)); 83 int __sigismember14 __P((const sigset_t *, int)); 84 int sigpending __P((sigset13_t *)); 85 int __sigpending14 __P((sigset_t *)); 86 int sigprocmask __P((int, const sigset13_t *, sigset13_t *)); 87 int __sigprocmask14 __P((int, const sigset_t *, sigset_t *)); 88 int sigsuspend __P((const sigset13_t *)); 89 int __sigsuspend14 __P((const sigset_t *)); 90 #else /* !__LIBC12_SOURCE__ */ 91 int sigaction __P((int, const struct sigaction *, struct sigaction *)) __RENAME(__sigaction14); 92 int sigaddset __P((sigset_t *, int)) __RENAME(__sigaddset14); 93 int sigdelset __P((sigset_t *, int)) __RENAME(__sigdelset14); 94 int sigemptyset __P((sigset_t *)) __RENAME(__sigemptyset14); 95 int sigfillset __P((sigset_t *)) __RENAME(__sigfillset14); 96 int sigismember __P((const sigset_t *, int)) __RENAME(__sigismember14); 97 int sigpending __P((sigset_t *)) __RENAME(__sigpending14); 98 int sigprocmask __P((int, const sigset_t *, sigset_t *)) __RENAME(__sigprocmask14); 99 int sigsuspend __P((const sigset_t *)) __RENAME(__sigsuspend14); 100 101 #if defined(__GNUC__) && defined(__STDC__) 102 #ifndef errno 103 int *__errno __P((void)); 104 #define errno (*__errno()) 105 #endif 106 extern __inline int 107 sigaddset(sigset_t *set, int signo) 108 { 109 if (signo <= 0 || signo >= _NSIG) { 110 errno = 22; /* EINVAL */ 111 return (-1); 112 } 113 __sigaddset(set, signo); 114 return (0); 115 } 116 117 extern __inline int 118 sigdelset(sigset_t *set, int signo) 119 { 120 if (signo <= 0 || signo >= _NSIG) { 121 errno = 22; /* EINVAL */ 122 return (-1); 123 } 124 __sigdelset(set, signo); 125 return (0); 126 } 127 128 extern __inline int 129 sigismember(const sigset_t *set, int signo) 130 { 131 if (signo <= 0 || signo >= _NSIG) { 132 errno = 22; /* EINVAL */ 133 return (-1); 134 } 135 return (__sigismember(set, signo)); 136 } 137 #endif /* __GNUC__ && __STDC__ */ 138 139 /* List definitions after function declarations, or Reiser cpp gets upset. */ 140 #define sigemptyset(set) (__sigemptyset(set), /*LINTED*/0) 141 #define sigfillset(set) (__sigfillset(set), /*LINTED*/ 0) 142 #endif /* !__LIBC12_SOURCE__ */ 143 144 /* 145 * X/Open CAE Specification Issue 5 Version 2 146 */ 147 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 148 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 149 int killpg __P((pid_t, int)); 150 int siginterrupt __P((int, int)); 151 int sigstack __P((const struct sigstack *, struct sigstack *)); 152 #ifdef __LIBC12_SOURCE__ 153 int sigaltstack __P((const struct sigaltstack13 *, struct sigaltstack13 *)); 154 int __sigaltstack14 __P((const stack_t *, stack_t *)); 155 #else 156 int sigaltstack __P((const stack_t *, stack_t *)) __RENAME(__sigaltstack14); 157 #endif 158 #endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */ 159 160 161 /* 162 * X/Open CAE Specification Issue 5 Version 2; IEEE Std 1003.1-2001 (POSIX) 163 */ 164 #if (_POSIX_C_SOURCE - 0) >= 200112L || \ 165 (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 166 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) 167 int sighold __P((int)); 168 int sigignore __P((int)); 169 int sigpause __P((int)); 170 int sigrelse __P((int)); 171 void (*sigset __P((int, void (*)(int)))) __P((int)); 172 int sigwait __P((const sigset_t * __restrict, int * __restrict)); 173 int sigwaitinfo __P((const sigset_t * __restrict, siginfo_t * __restrict)); 174 175 struct timespec; 176 int sigtimedwait __P((const sigset_t * __restrict, 177 siginfo_t * __restrict, const struct timespec * __restrict)); 178 int __sigtimedwait __P((const sigset_t * __restrict, 179 siginfo_t * __restrict, struct timespec * __restrict)); 180 #endif /* _POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE_EXTENDED || ... */ 181 182 183 #if defined(_NETBSD_SOURCE) 184 #ifndef __PSIGNAL_DECLARED 185 #define __PSIGNAL_DECLARED 186 /* also in unistd.h */ 187 void psignal __P((unsigned int, const char *)); 188 #endif /* __PSIGNAL_DECLARED */ 189 int sigblock __P((int)); 190 #ifdef __LIBC12_SOURCE__ 191 int sigreturn __P((struct sigcontext13 *)); 192 #ifndef __HAVE_SIGINFO 193 int __sigreturn14 __P((struct sigcontext *)); 194 #endif 195 #else 196 #ifndef __HAVE_SIGINFO 197 int sigreturn __P((struct sigcontext *)) __RENAME(__sigreturn14); 198 #endif 199 #endif 200 int sigsetmask __P((int)); 201 int sigvec __P((int, struct sigvec *, struct sigvec *)); 202 #endif /* _NETBSD_SOURCE */ 203 204 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 205 __END_DECLS 206 207 #endif /* !_SIGNAL_H_ */ 208