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sigsetops.c revision 1.14 
      1 /*	$NetBSD: sigsetops.c,v 1.14 2003/08/07 16:42:57 agc 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. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	@(#)sigsetops.c	8.1 (Berkeley) 6/4/93
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 #if defined(LIBC_SCCS) && !defined(lint)
     36 #if 0
     37 static char sccsid[] = "@(#)sigsetops.c	8.1 (Berkeley) 6/4/93";
     38 #else
     39 __RCSID("$NetBSD: sigsetops.c,v 1.14 2003/08/07 16:42:57 agc Exp $");
     40 #endif
     41 #endif /* LIBC_SCCS and not lint */
     42 
     43 #define	__LIBC12_SOURCE__
     44 
     45 #include <errno.h>
     46 #include <signal.h>
     47 
     48 #undef sigemptyset
     49 #undef sigfillset
     50 #undef sigaddset
     51 #undef sigdelset
     52 #undef sigismember
     53 
     54 __warn_references(sigaddset,
     55     "warning: reference to compatibility sigaddset(); include <signal.h> for correct reference")
     56 __warn_references(sigdelset,
     57     "warning: reference to compatibility sigdelset(); include <signal.h> for correct reference")
     58 __warn_references(sigemptyset,
     59     "warning: reference to compatibility sigemptyset(); include <signal.h> for correct reference")
     60 __warn_references(sigfillset,
     61     "warning: reference to compatibility sigfillset(); include <signal.h> for correct reference")
     62 __warn_references(sigismember,
     63     "warning: reference to compatibility sigismember(); include <signal.h> for correct reference")
     64 
     65 int
     66 sigemptyset(set)
     67 	sigset13_t *set;
     68 {
     69 	*set = 0;
     70 	return (0);
     71 }
     72 
     73 int
     74 sigfillset(set)
     75 	sigset13_t *set;
     76 {
     77 	*set = ~(sigset13_t)0;
     78 	return (0);
     79 }
     80 
     81 int
     82 sigaddset(set, signo)
     83 	sigset13_t *set;
     84 	int signo;
     85 {
     86 	if (signo <= 0 || signo >= NSIG13) {
     87 		errno = EINVAL;
     88 		return -1;
     89 	}
     90 	*set |= __sigmask13(signo);
     91 	return (0);
     92 }
     93 
     94 int
     95 sigdelset(set, signo)
     96 	sigset13_t *set;
     97 	int signo;
     98 {
     99 	if (signo <= 0 || signo >= NSIG13) {
    100 		errno = EINVAL;
    101 		return -1;
    102 	}
    103 	*set &= ~__sigmask13(signo);
    104 	return (0);
    105 }
    106 
    107 int
    108 sigismember(set, signo)
    109 	const sigset13_t *set;
    110 	int signo;
    111 {
    112 	if (signo <= 0 || signo >= NSIG13) {
    113 		errno = EINVAL;
    114 		return -1;
    115 	}
    116 	return ((*set & __sigmask13(signo)) != 0);
    117 }
    118