[apple/libc.git] / gen / sigsetops.c

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1989, 1993
 *	The Regents of the University of California.  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 the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
 */


#include <signal.h>
#include <errno.h>

#undef sigemptyset
#undef sigfillset
#undef sigaddset
#undef sigdelset
#undef sigismember

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

int
sigfillset(set)
	sigset_t *set;
{
	*set = ~(sigset_t)0;
	return (0);
}

int
sigaddset(set, signo)
	sigset_t *set;
	int signo;
{
	if ((signo < 0 ) || (signo > NSIG)) {
		errno = EINVAL;
		return(-1);
	}
	if (signo == 0)
		return(0);
	*set |= sigmask(signo);
	return (0);
}

int
sigdelset(set, signo)
	sigset_t *set;
	int signo;
{
	if ((signo < 0 ) || (signo > NSIG)) {
		errno = EINVAL;
		return(-1);
	}
	if (signo == 0)
		return(0);
	*set &= ~sigmask(signo);
	return (0);
}

int
sigismember(set, signo)
	const sigset_t *set;
	int signo;
{
	if ((signo < 0 ) || (signo > NSIG)) {
		errno = EINVAL;
		return(-1);
	}
	if (signo == 0)
		return(0);
	return ((*set & sigmask(signo)) != 0);
}
Commit	Line	Data
e9ce8d39 A	1	/*
	2	* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
734aad71 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. Please obtain a copy of the License at
	10	* http://www.opensource.apple.com/apsl/ and read it before using this
	11	* file.
	12	*
	13	* The Original Code and all software distributed under the License are
	14	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
e9ce8d39 A	15	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
e9ce8d39 A	16	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
734aad71 A	17	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	18	* Please see the License for the specific language governing rights and
	19	* limitations under the License.
e9ce8d39 A	20	*
	21	* @APPLE_LICENSE_HEADER_END@
	22	*/
	23	/*
	24	* Copyright (c) 1989, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	*
	27	* Redistribution and use in source and binary forms, with or without
	28	* modification, are permitted provided that the following conditions
	29	* are met:
	30	* 1. Redistributions of source code must retain the above copyright
	31	* notice, this list of conditions and the following disclaimer.
	32	* 2. Redistributions in binary form must reproduce the above copyright
	33	* notice, this list of conditions and the following disclaimer in the
	34	* documentation and/or other materials provided with the distribution.
	35	* 3. All advertising materials mentioning features or use of this software
	36	* must display the following acknowledgement:
	37	* This product includes software developed by the University of
	38	* California, Berkeley and its contributors.
	39	* 4. Neither the name of the University nor the names of its contributors
	40	* may be used to endorse or promote products derived from this software
	41	* without specific prior written permission.
	42	*
	43	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	44	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	45	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	46	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	47	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	48	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	49	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	50	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	51	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	52	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	53	* SUCH DAMAGE.
	54	*/
	55
	56
	57	#include <signal.h>
5b2abdfb	58	#include <errno.h>
e9ce8d39 A	59
	60	#undef sigemptyset
	61	#undef sigfillset
	62	#undef sigaddset
	63	#undef sigdelset
	64	#undef sigismember
	65
9385eb3d	66	int
e9ce8d39 A	67	sigemptyset(set)
	68	sigset_t *set;
	69	{
	70	*set = 0;
	71	return (0);
	72	}
	73
9385eb3d	74	int
e9ce8d39 A	75	sigfillset(set)
	76	sigset_t *set;
	77	{
	78	*set = ~(sigset_t)0;
	79	return (0);
	80	}
	81
9385eb3d	82	int
e9ce8d39 A	83	sigaddset(set, signo)
	84	sigset_t *set;
	85	int signo;
	86	{
5b2abdfb A	87	if ((signo < 0 ) \|\| (signo > NSIG)) {
	88	errno = EINVAL;
	89	return(-1);
	90	}
224c7076 A	91	if (signo == 0)
224c7076 A	92	return(0);
e9ce8d39 A	93	*set \|= sigmask(signo);
	94	return (0);
	95	}
	96
9385eb3d	97	int
e9ce8d39 A	98	sigdelset(set, signo)
	99	sigset_t *set;
	100	int signo;
	101	{
5b2abdfb A	102	if ((signo < 0 ) \|\| (signo > NSIG)) {
	103	errno = EINVAL;
	104	return(-1);
	105	}
224c7076 A	106	if (signo == 0)
224c7076 A	107	return(0);
e9ce8d39 A	108	*set &= ~sigmask(signo);
	109	return (0);
	110	}
	111
9385eb3d	112	int
e9ce8d39 A	113	sigismember(set, signo)
	114	const sigset_t *set;
	115	int signo;
	116	{
5b2abdfb A	117	if ((signo < 0 ) \|\| (signo > NSIG)) {
	118	errno = EINVAL;
	119	return(-1);
	120	}
224c7076 A	121	if (signo == 0)
224c7076 A	122	return(0);
9385eb3d	123	return ((*set & sigmask(signo)) != 0);
e9ce8d39	124	}