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sigsetops.c revision 1.13 
      1 /*	$NetBSD: sigsetops.c,v 1.13 1998/12/01 22:05:21 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1989, 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  *	@(#)sigsetops.c	8.1 (Berkeley) 6/4/93
     36  */
     37 
     38 #include <sys/cdefs.h>
     39 #if defined(LIBC_SCCS) && !defined(lint)
     40 #if 0
     41 static char sccsid[] = "@(#)sigsetops.c	8.1 (Berkeley) 6/4/93";
     42 #else
     43 __RCSID("$NetBSD: sigsetops.c,v 1.13 1998/12/01 22:05:21 thorpej Exp $");
     44 #endif
     45 #endif /* LIBC_SCCS and not lint */
     46 
     47 #define	__LIBC12_SOURCE__
     48 
     49 #include <errno.h>
     50 #include <signal.h>
     51 
     52 #undef sigemptyset
     53 #undef sigfillset
     54 #undef sigaddset
     55 #undef sigdelset
     56 #undef sigismember
     57 
     58 __warn_references(sigaddset,
     59     "warning: reference to compatibility sigaddset(); include <signal.h> for correct reference")
     60 __warn_references(sigdelset,
     61     "warning: reference to compatibility sigdelset(); include <signal.h> for correct reference")
     62 __warn_references(sigemptyset,
     63     "warning: reference to compatibility sigemptyset(); include <signal.h> for correct reference")
     64 __warn_references(sigfillset,
     65     "warning: reference to compatibility sigfillset(); include <signal.h> for correct reference")
     66 __warn_references(sigismember,
     67     "warning: reference to compatibility sigismember(); include <signal.h> for correct reference")
     68 
     69 int
     70 sigemptyset(set)
     71 	sigset13_t *set;
     72 {
     73 	*set = 0;
     74 	return (0);
     75 }
     76 
     77 int
     78 sigfillset(set)
     79 	sigset13_t *set;
     80 {
     81 	*set = ~(sigset13_t)0;
     82 	return (0);
     83 }
     84 
     85 int
     86 sigaddset(set, signo)
     87 	sigset13_t *set;
     88 	int signo;
     89 {
     90 	if (signo <= 0 || signo >= NSIG13) {
     91 		errno = EINVAL;
     92 		return -1;
     93 	}
     94 	*set |= __sigmask13(signo);
     95 	return (0);
     96 }
     97 
     98 int
     99 sigdelset(set, signo)
    100 	sigset13_t *set;
    101 	int signo;
    102 {
    103 	if (signo <= 0 || signo >= NSIG13) {
    104 		errno = EINVAL;
    105 		return -1;
    106 	}
    107 	*set &= ~__sigmask13(signo);
    108 	return (0);
    109 }
    110 
    111 int
    112 sigismember(set, signo)
    113 	const sigset13_t *set;
    114 	int signo;
    115 {
    116 	if (signo <= 0 || signo >= NSIG13) {
    117 		errno = EINVAL;
    118 		return -1;
    119 	}
    120 	return ((*set & __sigmask13(signo)) != 0);
    121 }
    122