signal.h revision 1.17
1 /* $NetBSD: signal.h,v 1.17 1998/10/01 19:41:23 kleink 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 /* XXX XXX XXX */ 53 extern __const char *__const sys_signame[SIGUSR2+1]; 54 extern __const char *__const sys_siglist[SIGUSR2+1]; 55 #endif 56 57 __BEGIN_DECLS 58 int raise __P((int)); 59 #ifndef _ANSI_SOURCE 60 int kill __P((pid_t, int)); 61 62 #ifdef __LIBC12_SOURCE__ 63 int sigaction __P((int, const struct sigaction13 *, struct sigaction13 *)); 64 int __sigaction14 __P((int, const struct sigaction *, struct sigaction *)); 65 int sigaddset __P((sigset13_t *, int)); 66 int __sigaddset14 __P((sigset_t *, int)); 67 int sigdelset __P((sigset13_t *, int)); 68 int __sigdelset14 __P((sigset_t *, int)); 69 int sigemptyset __P((sigset13_t *)); 70 int __sigemptyset14 __P((sigset_t *)); 71 int sigfillset __P((sigset13_t *)); 72 int __sigfillset14 __P((sigset_t *)); 73 int sigismember __P((const sigset13_t *, int)); 74 int __sigismember14 __P((const sigset_t *, int)); 75 int sigpending __P((sigset13_t *)); 76 int __sigpending14 __P((sigset_t *)); 77 int sigprocmask __P((int, const sigset13_t *, sigset13_t *)); 78 int __sigprocmask14 __P((int, const sigset_t *, sigset_t *)); 79 int sigsuspend __P((const sigset13_t *)); 80 int __sigsuspend14 __P((const sigset_t *)); 81 #else /* !__LIBC12_SOURCE__ */ 82 int sigaction __P((int, const struct sigaction *, struct sigaction *)) __RENAME(__sigaction14); 83 int sigaddset __P((sigset_t *, int)) __RENAME(__sigaddset14); 84 int sigdelset __P((sigset_t *, int)) __RENAME(__sigdelset14); 85 int sigemptyset __P((sigset_t *)) __RENAME(__sigemptyset14); 86 int sigfillset __P((sigset_t *)) __RENAME(__sigfillset14); 87 int sigismember __P((const sigset_t *, int)) __RENAME(__sigismember14); 88 int sigpending __P((sigset_t *)) __RENAME(__sigpending14); 89 int sigprocmask __P((int, const sigset_t *, sigset_t *)) __RENAME(__sigprocmask14); 90 int sigsuspend __P((const sigset_t *)) __RENAME(__sigsuspend14); 91 92 #if defined(__GNUC__) && defined(__STDC__) 93 extern __inline int 94 sigaddset(sigset_t *set, int signo) 95 { 96 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 97 defined(_REENTRANT) 98 extern int *__errno __P((void)); 99 #else 100 extern int errno; 101 #endif 102 103 if (signo <= 0 || signo >= _NSIG) { 104 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 105 defined(_REENTRANT) 106 *__errno() = 22; /* EINVAL */ 107 #else 108 errno = 22; /* EINVAL */ 109 #endif 110 return (-1); 111 } 112 __sigaddset(set, signo); 113 return (0); 114 } 115 116 extern __inline int 117 sigdelset(sigset_t *set, int signo) 118 { 119 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 120 defined(_REENTRANT) 121 extern int *__errno __P((void)); 122 #else 123 extern int errno; 124 #endif 125 126 if (signo <= 0 || signo >= _NSIG) { 127 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 128 defined(_REENTRANT) 129 *__errno() = 22; /* EINVAL */ 130 #else 131 errno = 22; /* EINVAL */ 132 #endif 133 return (-1); 134 } 135 __sigdelset(set, signo); 136 return (0); 137 } 138 139 extern __inline int 140 sigismember(const sigset_t *set, int signo) 141 { 142 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 143 defined(_REENTRANT) 144 extern int *__errno __P((void)); 145 #else 146 extern int errno; 147 #endif 148 149 if (signo <= 0 || signo >= _NSIG) { 150 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \ 151 defined(_REENTRANT) 152 *__errno() = 22; /* EINVAL */ 153 #else 154 errno = 22; /* EINVAL */ 155 #endif 156 return (-1); 157 } 158 return (__sigismember(set, signo)); 159 } 160 #endif /* __GNUC__ && __STDC__ */ 161 162 /* List definitions after function declarations, or Reiser cpp gets upset. */ 163 #define sigemptyset(set) (__sigemptyset(set), 0) 164 #define sigfillset(set) (__sigfillset(set), 0) 165 #endif /* !__LIBC12_SOURCE__ */ 166 167 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \ 168 (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \ 169 (_XOPEN_SOURCE - 0) >= 500 170 int killpg __P((pid_t, int)); 171 int siginterrupt __P((int, int)); 172 int sigpause __P((int)); 173 int sigstack __P((const struct sigstack *, struct sigstack *)); 174 #ifdef __LIBC12_SOURCE__ 175 int sigaltstack __P((const struct sigaltstack13 *, struct sigaltstack13 *)); 176 int __sigaltstack14 __P((const stack_t *, stack_t *)); 177 #else 178 int sigaltstack __P((const stack_t *, stack_t *)) __RENAME(__sigaltstack14); 179 #endif 180 #endif /* (!_POSIX_C_SOURCE && !_XOPEN_SOURCE) || ... */ 181 182 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) 183 void psignal __P((unsigned int, const char *)); 184 int sigblock __P((int)); 185 #ifdef __LIBC12_SOURCE__ 186 int sigreturn __P((struct sigcontext13 *)); 187 int __sigreturn14 __P((struct sigcontext *)); 188 #else 189 int sigreturn __P((struct sigcontext *)) __RENAME(__sigreturn14); 190 #endif 191 int sigsetmask __P((int)); 192 int sigvec __P((int, struct sigvec *, struct sigvec *)); 193 #endif /* !_POSIX_C_SOURCE && !_XOPEN_SOURCE */ 194 195 #endif /* !_ANSI_SOURCE */ 196 __END_DECLS 197 198 #endif /* !_SIGNAL_H_ */ 199
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