/*	$NetBSD: ibcs2_signal.h,v 1.21 2013/01/02 18:50:07 dsl Exp $	*/

/*
 * Copyright (c) 1994, 1995 Scott Bartram
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Scott Bartram.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef	_IBCS2_SIGNAL_H
#define	_IBCS2_SIGNAL_H

#define IBCS2_SIGHUP		1
#define IBCS2_SIGINT		2
#define IBCS2_SIGQUIT		3
#define IBCS2_SIGILL		4
#define IBCS2_SIGTRAP		5
#define IBCS2_SIGIOT		6
#define IBCS2_SIGABRT		6
#define IBCS2_SIGEMT		7
#define IBCS2_SIGFPE		8
#define IBCS2_SIGKILL		9
#define IBCS2_SIGBUS		10
#define IBCS2_SIGSEGV		11
#define IBCS2_SIGSYS		12
#define IBCS2_SIGPIPE		13
#define IBCS2_SIGALRM		14
#define IBCS2_SIGTERM		15
#define IBCS2_SIGUSR1		16
#define IBCS2_SIGUSR2		17
#define IBCS2_SIGCLD		18
#define IBCS2_SIGPWR		19
#define IBCS2_SIGWINCH		20
/*#define IBCS2_SIGPHONE	21*/
#define IBCS2_SIGPOLL		22
#define IBCS2_NSIG		32

/*
 * SCO-specific
 */
#define IBCS2_SIGSTOP		23
#define IBCS2_SIGTSTP		24
#define IBCS2_SIGCONT		25
#define IBCS2_SIGTTIN		26
#define IBCS2_SIGTTOU		27
#define IBCS2_SIGVTALRM		28
#define IBCS2_SIGPROF		29
#define IBCS2_SIGXCPU		30
#define IBCS2_SIGXFSZ		31

#define IBCS2_SIGNO_MASK	0x00FF
#define IBCS2_SIGNAL_MASK	0x0000
#define IBCS2_SIGSET_MASK	0x0100
#define IBCS2_SIGHOLD_MASK	0x0200
#define IBCS2_SIGRELSE_MASK	0x0400
#define IBCS2_SIGIGNORE_MASK	0x0800
#define IBCS2_SIGPAUSE_MASK	0x1000

#define IBCS2_SIGNO(x)		((x) & IBCS2_SIGNO_MASK)
#define IBCS2_SIGCALL(x)	((x) & ~IBCS2_SIGNO_MASK)

#define IBCS2_SIG_DFL		(void(*)(int))	0
#define IBCS2_SIG_ERR		(void(*)(int))	(-1)
#define IBCS2_SIG_IGN		(void(*)(int))	1
#define IBCS2_SIG_HOLD		(void(*)(int))	2

#define IBCS2_SIG_SETMASK	0
#define IBCS2_SIG_BLOCK		1
#define IBCS2_SIG_UNBLOCK	2

typedef long	ibcs2_sigset_t;
typedef void	(*ibcs2_sig_t)(int);

struct ibcs2_sigaction {
	ibcs2_sig_t	ibcs2_sa_handler;
	ibcs2_sigset_t	ibcs2_sa_mask;
	int		ibcs2_sa_flags;
};

/* sa_flags */
#define IBCS2_SA_NOCLDSTOP	0x00000001
#define IBCS2_SA_RESETHAND	0x00000002
#define IBCS2_SA_RESTART	0x00000004
#define IBCS2_SA_SIGINFO	0x00000008
#define IBCS2_SA_NODEFER	0x00000010
#define IBCS2_SA_ONSTACK	0x00000200
#define IBCS2_SA_NOCLDWAIT	0x00010000
#define	IBCS2_SA_ALLBITS	0x0001021f

struct ibcs2_sigaltstack {
	void		*ss_sp;
	ibcs2_size_t	ss_size;
	int		ss_flags;
};

/* ss_flags */
#define	IBCS2_SS_ONSTACK	0x00000001
#define	IBCS2_SS_DISABLE	0x00000002
#define	IBCS2_SS_ALLBITS	0x00000003

#ifdef _KERNEL
extern const int native_to_ibcs2_signo[];
void ibcs2_to_native_sigset(const ibcs2_sigset_t *, sigset_t *);
void native_to_ibcs2_sigset(const sigset_t *, ibcs2_sigset_t *);

void	ibcs2_sendsig(const struct ksiginfo *, const sigset_t *);
#endif

#endif /* _IBCS2_SIGNAL_H */