1 /* $NetBSD: signal.h,v 1.21 2000/12/18 21:21:26 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)signal.h 8.3 (Berkeley) 3/30/94 36 */ 37 38 #ifndef _SIGNAL_H_ 39 #define _SIGNAL_H_ 40 41 #include <sys/cdefs.h> 42 #include <sys/featuretest.h> 43 44 #if !defined(_ANSI_SOURCE) 45 #include <sys/types.h> 46 #endif 47 48 #include <sys/signal.h> 49 50 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \ 51 !defined(_XOPEN_SOURCE) 52 extern __const char *__const *sys_signame __RENAME(__sys_signame14); 53 #ifndef __SYS_SIGLIST_DECLARED 54 #define __SYS_SIGLIST_DECLARED 55 /* also in unistd.h */ 56 extern __const char *__const *sys_siglist __RENAME(__sys_siglist14); 57 #endif /* __SYS_SIGLIST_DECLARED */ 58 extern __const int sys_nsig __RENAME(__sys_nsig14); 59 #endif 60 61 __BEGIN_DECLS 62 int raise __P((int)); 63 #ifndef _ANSI_SOURCE 64 int kill __P((pid_t, int)); 65 66 #ifdef __LIBC12_SOURCE__ 67 int sigaction __P((int, const struct sigaction13 *, struct sigaction13 *)); 68 int __sigaction14 __P((int, const struct sigaction *, struct sigaction *)); 69 int sigaddset __P((sigset13_t *, int)); 70 int __sigaddset14 __P((sigset_t *, int)); 71 int sigdelset __P((sigset13_t *, int)); 72 int __sigdelset14 __P((sigset_t *, int)); 73 int sigemptyset __P((sigset13_t *)); 74 int __sigemptyset14 __P((sigset_t *)); 75 int sigfillset __P((sigset13_t *)); 76 int __sigfillset14 __P((sigset_t *)); 77 int sigismember __P((const sigset13_t *, int)); 78 int __sigismember14 __P((const sigset_t *, int)); 79 int sigpending __P((sigset13_t *)); 80 int __sigpending14 __P((sigset_t *)); 81 int sigprocmask __P((int, const sigset13_t *, sigset13_t *)); 82 int __sigprocmask14 __P((int, const sigset_t *, sigset_t *)); 83 int sigsuspend __P((const sigset13_t *)); 84 int __sigsuspend14 __P((const sigset_t *)); 85 #else /* !__LIBC12_SOURCE__ */ 86 int sigaction __P((int, const struct sigaction *, struct sigaction *)) __RENAME(__sigaction14); 87 int sigaddset __P((sigset_t *, int)) __RENAME(__sigaddset14); 88 int sigdelset __P((sigset_t *, int)) __RENAME(__sigdelset14); 89 int sigemptyset __P((sigset_t *)) __RENAME(__sigemptyset14); 90 int sigfillset __P((sigset_t *)) __RENAME(__sigfillset14); 91 int sigismember __P((const sigset_t *, int)) __RENAME(__sigismember14); 92 int sigpending __P((sigset_t *)) __RENAME(__sigpending14); 93 int sigprocmask __P((int, const sigset_t *, sigset_t *)) __RENAME(__sigprocmask14); 94 int sigsuspend __P((const sigset_t *)) __RENAME(__sigsuspend14); 95 96 #if defined(__GNUC__) && defined(__STDC__) 97 #ifndef errno 98 int *__errno __P((void)); 99 #define errno (*__errno()) 100 #endif 101 extern __inline int 102 sigaddset(sigset_t *set, int signo) 103 { 104 if (signo <= 0 || signo >= _NSIG) { 105 errno = 22; /* EINVAL */ 106 return (-1); 107 } 108 __sigaddset(set, signo); 109 return (0); 110 } 111 112 extern __inline int 113 sigdelset(sigset_t *set, int signo) 114 { 115 if (signo <= 0 || signo >= _NSIG) { 116 errno = 22; /* EINVAL */ 117 return (-1); 118 } 119 __sigdelset(set, signo); 120 return (0); 121 } 122 123 extern __inline int 124 sigismember(const sigset_t *set, int signo) 125 { 126 if (signo <= 0 || signo >= _NSIG) { 127 errno = 22; /* EINVAL */ 128 return (-1); 129 } 130 return (__sigismember(set, signo)); 131 } 132 #endif /* __GNUC__ && __STDC__ */ 133 134 /* List definitions after function declarations, or Reiser cpp gets upset. */ 135 #define sigemptyset(set) (__sigemptyset(set), /*LINTED*/0) 136 #define sigfillset(set) (__sigfillset(set), /*LINTED*/ 0) 137 #endif /* !__LIBC12_SOURCE__ */ 138 139 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \ 140 (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 141 (_XOPEN_SOURCE - 0) >= 500 142 int killpg __P((pid_t, int)); 143 int siginterrupt __P((int, int)); 144 int sigpause __P((int)); 145 int sigstack __P((const struct sigstack *, struct sigstack *)); 146 #ifdef __LIBC12_SOURCE__ 147 int sigaltstack __P((const struct sigaltstack13 *, struct sigaltstack13 *)); 148 int __sigaltstack14 __P((const stack_t *, stack_t *)); 149 #else 150 int sigaltstack __P((const stack_t *, stack_t *)) __RENAME(__sigaltstack14); 151 #endif 152 #endif /* (!_POSIX_C_SOURCE && !_XOPEN_SOURCE) || ... */ 153 154 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) 155 #ifndef __PSIGNAL_DECLARED 156 #define __PSIGNAL_DECLARED 157 /* also in unistd.h */ 158 void psignal __P((unsigned int, const char *)); 159 #endif /* __PSIGNAL_DECLARED */ 160 int sigblock __P((int)); 161 #ifdef __LIBC12_SOURCE__ 162 int sigreturn __P((struct sigcontext13 *)); 163 int __sigreturn14 __P((struct sigcontext *)); 164 #else 165 int sigreturn __P((struct sigcontext *)) __RENAME(__sigreturn14); 166 #endif 167 int sigsetmask __P((int)); 168 int sigvec __P((int, struct sigvec *, struct sigvec *)); 169 #endif /* !_POSIX_C_SOURCE && !_XOPEN_SOURCE */ 170 171 #endif /* !_ANSI_SOURCE */ 172 __END_DECLS 173 174 #endif /* !_SIGNAL_H_ */ 175