[openssh.git] / openbsd-compat / sigact.c

/*	$OpenBSD: sigaction.c,v 1.4 2001/01/22 18:01:48 millert Exp $	*/

/****************************************************************************
 * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 ****************************************************************************/

/* OPENBSD ORIGINAL: lib/libcurses/base/sigaction.c */

#include "includes.h"
#include <signal.h>
#include "sigact.h"

/* This file provides sigaction() emulation using sigvec() */
/* Use only if this is non POSIX system */

#if !HAVE_SIGACTION && HAVE_SIGVEC

int
sigaction(int sig, struct sigaction *sigact, struct sigaction *osigact)
{
	return sigvec(sig, &(sigact->sv), &(osigact->sv));
}

int
sigemptyset (sigset_t * mask)
{
	*mask = 0;
	return 0;
}

int
sigprocmask (int mode, sigset_t * mask, sigset_t * omask)
{
	sigset_t current = sigsetmask(0);

	if (omask) *omask = current;

	if (mode==SIG_BLOCK)
		current |= *mask;
	else if (mode==SIG_UNBLOCK)
		current &= ~*mask;
	else if (mode==SIG_SETMASK)
	current = *mask;

	sigsetmask(current);
	return 0;
}

int
sigsuspend (sigset_t * mask)
{
	return sigpause(*mask);
}

int
sigdelset (sigset_t * mask, int sig)
{
	*mask &= ~sigmask(sig);
	return 0;
}

int
sigaddset (sigset_t * mask, int sig)
{
	*mask |= sigmask(sig);
	return 0;
}

int
sigismember (sigset_t * mask, int sig)
{
	return (*mask & sigmask(sig)) != 0;
}

#endif
Commit	Line	Data
3e6325a6	1	/* $OpenBSD: sigaction.c,v 1.4 2001/01/22 18:01:48 millert Exp $ */
5bf9cfe9	2
5bf9cfe9	3	/****************************************************************************
3e6325a6	4	* Copyright (c) 1998,2000 Free Software Foundation, Inc. *
5bf9cfe9	5	* *
	6	* Permission is hereby granted, free of charge, to any person obtaining a *
	7	* copy of this software and associated documentation files (the *
	8	* "Software"), to deal in the Software without restriction, including *
	9	* without limitation the rights to use, copy, modify, merge, publish, *
	10	* distribute, distribute with modifications, sublicense, and/or sell *
	11	* copies of the Software, and to permit persons to whom the Software is *
	12	* furnished to do so, subject to the following conditions: *
	13	* *
	14	* The above copyright notice and this permission notice shall be included *
	15	* in all copies or substantial portions of the Software. *
	16	* *
	17	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
	18	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
	19	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
	20	* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
	21	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
	22	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
	23	* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
	24	* *
	25	* Except as contained in this notice, the name(s) of the above copyright *
	26	* holders shall not be used in advertising or otherwise to promote the *
	27	* sale, use or other dealings in this Software without prior written *
	28	* authorization. *
	29	****************************************************************************/
	30
	31	/****************************************************************************
	32	* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
	33	* and: Eric S. Raymond <esr@snark.thyrsus.com> *
	34	****************************************************************************/
	35
f6d4fb87	36	/* OPENBSD ORIGINAL: lib/libcurses/base/sigaction.c */
f6d4fb87	37
17962c40	38	#include "includes.h"
d8d6c87e	39	#include <signal.h>
8f0b3553	40	#include "sigact.h"
5bf9cfe9	41
	42	/* This file provides sigaction() emulation using sigvec() */
	43	/* Use only if this is non POSIX system */
	44
	45	#if !HAVE_SIGACTION && HAVE_SIGVEC
	46
	47	int
	48	sigaction(int sig, struct sigaction sigact, struct sigaction osigact)
	49	{
	50	return sigvec(sig, &(sigact->sv), &(osigact->sv));
	51	}
	52
	53	int
	54	sigemptyset (sigset_t * mask)
	55	{
	56	*mask = 0;
	57	return 0;
	58	}
	59
	60	int
	61	sigprocmask (int mode, sigset_t * mask, sigset_t * omask)
	62	{
	63	sigset_t current = sigsetmask(0);
	64
	65	if (omask) *omask = current;
	66
	67	if (mode==SIG_BLOCK)
	68	current \|= *mask;
	69	else if (mode==SIG_UNBLOCK)
	70	current &= ~*mask;
	71	else if (mode==SIG_SETMASK)
	72	current = *mask;
	73
	74	sigsetmask(current);
	75	return 0;
	76	}
	77
	78	int
	79	sigsuspend (sigset_t * mask)
	80	{
	81	return sigpause(*mask);
	82	}
	83
	84	int
	85	sigdelset (sigset_t * mask, int sig)
	86	{
	87	*mask &= ~sigmask(sig);
	88	return 0;
	89	}
	90
	91	int
	92	sigaddset (sigset_t * mask, int sig)
	93	{
	94	*mask \|= sigmask(sig);
	95	return 0;
	96	}
	97
	98	int
	99	sigismember (sigset_t * mask, int sig)
	100	{
	101	return (*mask & sigmask(sig)) != 0;
	102	}
	103
	104	#endif