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signal.h revision 1.14
      1 /*	$NetBSD: signal.h,v 1.14 1998/09/12 11:10:43 mycroft 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[_NSIG];
     53 extern __const char *__const sys_siglist[_NSIG];
     54 #endif
     55 
     56 __BEGIN_DECLS
     57 int	raise __P((int));
     58 #ifndef	_ANSI_SOURCE
     59 int	kill __P((pid_t, int));
     60 
     61 #ifdef __LIBC13_SOURCE__
     62 int	sigaction __P((int, const struct sigaction13 *, struct sigaction13 *));
     63 int	__sigaction14 __P((int, const struct sigaction *, struct sigaction *));
     64 int	sigaddset __P((sigset13_t *, int));
     65 int	__sigaddset14 __P((sigset_t *, int));
     66 int	sigdelset __P((sigset13_t *, int));
     67 int	__sigdelset14 __P((sigset_t *, int));
     68 int	sigemptyset __P((sigset13_t *));
     69 int	__sigemptyset14 __P((sigset_t *));
     70 int	sigfillset __P((sigset13_t *));
     71 int	__sigfillset14 __P((sigset_t *));
     72 int	sigismember __P((const sigset13_t *, int));
     73 int	__sigismember14 __P((const sigset_t *, int));
     74 int	sigpending __P((sigset13_t *));
     75 int	__sigpending14 __P((sigset_t *));
     76 int	sigprocmask __P((int, const sigset13_t *, sigset13_t *));
     77 int	__sigprocmask14 __P((int, const sigset_t *, sigset_t *));
     78 int	sigsuspend __P((const sigset13_t *));
     79 int	__sigsuspend14 __P((const sigset_t *));
     80 #else /* !__LIBC13_SOURCE__ */
     81 int	sigaction __P((int, const struct sigaction *, struct sigaction *)) __RENAME(__sigaction14);
     82 int	sigaddset __P((sigset_t *, int)) __RENAME(__sigaddset14);
     83 int	sigdelset __P((sigset_t *, int)) __RENAME(__sigdelset14);
     84 int	sigemptyset __P((sigset_t *)) __RENAME(__sigemptyset14);
     85 int	sigfillset __P((sigset_t *)) __RENAME(__sigfillset14);
     86 int	sigismember __P((const sigset_t *, int)) __RENAME(__sigismember14);
     87 int	sigpending __P((sigset_t *)) __RENAME(__sigpending14);
     88 int	sigprocmask __P((int, const sigset_t *, sigset_t *)) __RENAME(__sigprocmask14);
     89 int	sigsuspend __P((const sigset_t *)) __RENAME(__sigsuspend14);
     90 
     91 #if defined(__GNUC__) && defined(__STDC__)
     92 extern __inline int
     93 sigaddset(sigset_t *set, int signo)
     94 {
     95 	extern int errno;
     96 
     97 	if (signo <= 0 || signo >= _NSIG) {
     98 		errno = 22;			/* EINVAL */
     99 		return (-1);
    100 	}
    101 	__sigaddset(set, signo);
    102 	return (0);
    103 }
    104 
    105 extern __inline int
    106 sigdelset(sigset_t *set, int signo)
    107 {
    108 	extern int errno;
    109 
    110 	if (signo <= 0 || signo >= _NSIG) {
    111 		errno = 22;			/* EINVAL */
    112 		return (-1);
    113 	}
    114 	__sigdelset(set, signo);
    115 	return (0);
    116 }
    117 
    118 extern __inline int
    119 sigismember(const sigset_t *set, int signo)
    120 {
    121 	extern int errno;
    122 
    123 	if (signo <= 0 || signo >= _NSIG) {
    124 		errno = 22;			/* EINVAL */
    125 		return (-1);
    126 	}
    127 	return (__sigismember(set, signo));
    128 }
    129 #endif /* __GNUC__ && __STDC__ */
    130 
    131 /* List definitions after function declarations, or Reiser cpp gets upset. */
    132 #define	sigemptyset(set)	(__sigemptyset(set), 0)
    133 #define	sigfillset(set)		(__sigfillset(set), 0)
    134 #endif /* !__LIBC13_SOURCE__ */
    135 
    136 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
    137     (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
    138     (_XOPEN_SOURCE - 0) >= 500
    139 int	killpg __P((pid_t, int));
    140 int	siginterrupt __P((int, int));
    141 int	sigpause __P((int));
    142 int	sigstack __P((const struct sigstack *, struct sigstack *));
    143 #ifdef __LIBC12_SOURCE__
    144 int	sigaltstack __P((const struct sigaltstack13 *, struct sigaltstack13 *));
    145 int	__sigaltstack14 __P((const stack_t *, stack_t *));
    146 #else
    147 int	sigaltstack __P((const stack_t *, stack_t *)) __RENAME(__sigaltstack14);
    148 #endif
    149 #endif /* (!_POSIX_C_SOURCE && !_XOPEN_SOURCE) || ... */
    150 
    151 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
    152 void	psignal __P((unsigned int, const char *));
    153 int	sigblock __P((int));
    154 #ifdef __LIBC13_SOURCE__
    155 int	sigreturn __P((struct sigcontext13 *));
    156 int	__sigreturn14 __P((struct sigcontext *));
    157 #else
    158 int	sigreturn __P((struct sigcontext *)) __RENAME(__sigreturn14);
    159 #endif
    160 int	sigsetmask __P((int));
    161 int	sigvec __P((int, struct sigvec *, struct sigvec *));
    162 #endif /* !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
    163 
    164 #endif	/* !_ANSI_SOURCE */
    165 __END_DECLS
    166 
    167 #endif	/* !_SIGNAL_H_ */
    168