1 /* $NetBSD: sigsetops.c,v 1.12 1998/09/26 23:53:36 christos 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 1.12 1998/09/26 23:53:36 christos 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 int 59 sigemptyset(set) 60 sigset13_t *set; 61 { 62 *set = 0; 63 return (0); 64 } 65 66 int 67 sigfillset(set) 68 sigset13_t *set; 69 { 70 *set = ~(sigset13_t)0; 71 return (0); 72 } 73 74 int 75 sigaddset(set, signo) 76 sigset13_t *set; 77 int signo; 78 { 79 if (signo <= 0 || signo >= NSIG13) { 80 errno = EINVAL; 81 return -1; 82 } 83 *set |= __sigmask13(signo); 84 return (0); 85 } 86 87 int 88 sigdelset(set, signo) 89 sigset13_t *set; 90 int signo; 91 { 92 if (signo <= 0 || signo >= NSIG13) { 93 errno = EINVAL; 94 return -1; 95 } 96 *set &= ~__sigmask13(signo); 97 return (0); 98 } 99 100 int 101 sigismember(set, signo) 102 const sigset13_t *set; 103 int signo; 104 { 105 if (signo <= 0 || signo >= NSIG13) { 106 errno = EINVAL; 107 return -1; 108 } 109 return ((*set & __sigmask13(signo)) != 0); 110 } 111