[gssapi-openssh.git] / openssh / 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 <errno.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 ? &sigact->sv : NULL,
	    osigact ? &osigact->sv : NULL);
}

int
sigemptyset (sigset_t *mask)
{
	if (!mask) {
		errno = EINVAL;
		return -1;
	}
	*mask = 0;
	return 0;
}

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

	if (!mask) {
		errno = EINVAL;
		return -1;
	}

	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)
{
	if (!mask) {
		errno = EINVAL;
		return -1;
	}
	return sigpause(*mask);
}

int
sigdelset (sigset_t *mask, int sig)
{
	if (!mask) {
		errno = EINVAL;
		return -1;
	}
	*mask &= ~sigmask(sig);
	return 0;
}

int
sigaddset (sigset_t *mask, int sig)
{
	if (!mask) {
		errno = EINVAL;
		return -1;
	}
	*mask |= sigmask(sig);
	return 0;
}

int
sigismember (sigset_t *mask, int sig)
{
	if (!mask) {
		errno = EINVAL;
		return -1;
	}
	return (*mask & sigmask(sig)) != 0;
}

#endif
Commit	Line	Data
2c06c99b	1	/* $OpenBSD: sigaction.c,v 1.4 2001/01/22 18:01:48 millert Exp $ */
3c0ef626	2
3c0ef626	3	/****************************************************************************
2c06c99b	4	* Copyright (c) 1998,2000 Free Software Foundation, Inc. *
3c0ef626	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
2c06c99b	36	/* OPENBSD ORIGINAL: lib/libcurses/base/sigaction.c */
2c06c99b	37
41b2f314	38	#include "includes.h"
22616013	39	#include <errno.h>
3c0ef626	40	#include <signal.h>
	41	#include "sigact.h"
	42
	43	/* This file provides sigaction() emulation using sigvec() */
	44	/* Use only if this is non POSIX system */
	45
	46	#if !HAVE_SIGACTION && HAVE_SIGVEC
	47
	48	int
	49	sigaction(int sig, struct sigaction sigact, struct sigaction osigact)
	50	{
22616013	51	return sigvec(sig, sigact ? &sigact->sv : NULL,
22616013	52	osigact ? &osigact->sv : NULL);
3c0ef626	53	}
	54
	55	int
22616013	56	sigemptyset (sigset_t *mask)
3c0ef626	57	{
22616013	58	if (!mask) {
	59	errno = EINVAL;
	60	return -1;
	61	}
3c0ef626	62	*mask = 0;
	63	return 0;
	64	}
	65
	66	int
22616013	67	sigprocmask (int mode, sigset_t mask, sigset_t omask)
3c0ef626	68	{
	69	sigset_t current = sigsetmask(0);
	70
22616013	71	if (!mask) {
	72	errno = EINVAL;
	73	return -1;
	74	}
3c0ef626	75
22616013	76	if (omask)
	77	*omask = current;
	78
	79	if (mode == SIG_BLOCK)
3c0ef626	80	current \|= *mask;
22616013	81	else if (mode == SIG_UNBLOCK)
3c0ef626	82	current &= ~*mask;
22616013	83	else if (mode == SIG_SETMASK)
3c0ef626	84	current = *mask;
	85
	86	sigsetmask(current);
	87	return 0;
	88	}
	89
	90	int
22616013	91	sigsuspend (sigset_t *mask)
3c0ef626	92	{
22616013	93	if (!mask) {
	94	errno = EINVAL;
	95	return -1;
	96	}
3c0ef626	97	return sigpause(*mask);
	98	}
	99
	100	int
22616013	101	sigdelset (sigset_t *mask, int sig)
3c0ef626	102	{
22616013	103	if (!mask) {
	104	errno = EINVAL;
	105	return -1;
	106	}
3c0ef626	107	*mask &= ~sigmask(sig);
	108	return 0;
	109	}
	110
	111	int
22616013	112	sigaddset (sigset_t *mask, int sig)
3c0ef626	113	{
22616013	114	if (!mask) {
	115	errno = EINVAL;
	116	return -1;
	117	}
3c0ef626	118	*mask \|= sigmask(sig);
	119	return 0;
	120	}
	121
	122	int
22616013	123	sigismember (sigset_t *mask, int sig)
3c0ef626	124	{
22616013	125	if (!mask) {
	126	errno = EINVAL;
	127	return -1;
	128	}
3c0ef626	129	return (*mask & sigmask(sig)) != 0;
	130	}
	131
	132	#endif