10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*6515Sraf * Common Development and Distribution License (the "License"). 6*6515Sraf * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 21*6515Sraf 220Sstevel@tonic-gate /* 23*6515Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 240Sstevel@tonic-gate * Use is subject to license terms. 250Sstevel@tonic-gate */ 260Sstevel@tonic-gate 270Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 280Sstevel@tonic-gate 290Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 300Sstevel@tonic-gate /* All Rights Reserved */ 310Sstevel@tonic-gate 320Sstevel@tonic-gate /* 330Sstevel@tonic-gate * POSIX signal manipulation functions. 340Sstevel@tonic-gate */ 350Sstevel@tonic-gate #pragma weak sigfillset = _sigfillset 360Sstevel@tonic-gate #pragma weak sigemptyset = _sigemptyset 370Sstevel@tonic-gate #pragma weak sigaddset = _sigaddset 380Sstevel@tonic-gate #pragma weak sigdelset = _sigdelset 390Sstevel@tonic-gate #pragma weak sigismember = _sigismember 400Sstevel@tonic-gate 410Sstevel@tonic-gate #include "synonyms.h" 420Sstevel@tonic-gate #include <sys/types.h> 430Sstevel@tonic-gate #include <stdio.h> 440Sstevel@tonic-gate #include <sys/param.h> 450Sstevel@tonic-gate #include <sys/errno.h> 460Sstevel@tonic-gate #include <sys/signal.h> 470Sstevel@tonic-gate #include <errno.h> 480Sstevel@tonic-gate #include "libc.h" 490Sstevel@tonic-gate 500Sstevel@tonic-gate #define SIGSETSIZE 4 510Sstevel@tonic-gate #define MAXBITNO (NBPW*8) 520Sstevel@tonic-gate 530Sstevel@tonic-gate static sigset_t sigs; 540Sstevel@tonic-gate static int sigsinit; 550Sstevel@tonic-gate 560Sstevel@tonic-gate #define sigword(n) ((n-1)/MAXBITNO) 570Sstevel@tonic-gate #define bitmask(n) (1L<<((n-1)%MAXBITNO)) 580Sstevel@tonic-gate 590Sstevel@tonic-gate static int 600Sstevel@tonic-gate sigvalid(int sig) 610Sstevel@tonic-gate { 620Sstevel@tonic-gate if (sig <= 0 || sig > (MAXBITNO * SIGSETSIZE)) 630Sstevel@tonic-gate return (0); 640Sstevel@tonic-gate 650Sstevel@tonic-gate if (!sigsinit) { 660Sstevel@tonic-gate (void) __sigfillset(&sigs); 670Sstevel@tonic-gate sigsinit++; 680Sstevel@tonic-gate } 690Sstevel@tonic-gate 700Sstevel@tonic-gate return ((sigs.__sigbits[sigword(sig)] & bitmask(sig)) != 0); 710Sstevel@tonic-gate } 720Sstevel@tonic-gate 730Sstevel@tonic-gate int 740Sstevel@tonic-gate sigfillset(sigset_t *set) 750Sstevel@tonic-gate { 760Sstevel@tonic-gate if (!sigsinit) { 770Sstevel@tonic-gate (void) __sigfillset(&sigs); 780Sstevel@tonic-gate sigsinit++; 790Sstevel@tonic-gate } 800Sstevel@tonic-gate 810Sstevel@tonic-gate *set = sigs; 820Sstevel@tonic-gate return (0); 830Sstevel@tonic-gate } 840Sstevel@tonic-gate 850Sstevel@tonic-gate int 860Sstevel@tonic-gate sigemptyset(sigset_t *set) 870Sstevel@tonic-gate { 880Sstevel@tonic-gate set->__sigbits[0] = 0; 890Sstevel@tonic-gate set->__sigbits[1] = 0; 900Sstevel@tonic-gate set->__sigbits[2] = 0; 910Sstevel@tonic-gate set->__sigbits[3] = 0; 920Sstevel@tonic-gate return (0); 930Sstevel@tonic-gate } 940Sstevel@tonic-gate 950Sstevel@tonic-gate int 960Sstevel@tonic-gate sigaddset(sigset_t *set, int sig) 970Sstevel@tonic-gate { 980Sstevel@tonic-gate if (!sigvalid(sig)) { 990Sstevel@tonic-gate errno = EINVAL; 1000Sstevel@tonic-gate return (-1); 1010Sstevel@tonic-gate } 1020Sstevel@tonic-gate set->__sigbits[sigword(sig)] |= bitmask(sig); 1030Sstevel@tonic-gate return (0); 1040Sstevel@tonic-gate } 1050Sstevel@tonic-gate 1060Sstevel@tonic-gate int 1070Sstevel@tonic-gate sigdelset(sigset_t *set, int sig) 1080Sstevel@tonic-gate { 1090Sstevel@tonic-gate if (!sigvalid(sig)) { 1100Sstevel@tonic-gate errno = EINVAL; 1110Sstevel@tonic-gate return (-1); 1120Sstevel@tonic-gate } 1130Sstevel@tonic-gate set->__sigbits[sigword(sig)] &= ~bitmask(sig); 1140Sstevel@tonic-gate return (0); 1150Sstevel@tonic-gate } 1160Sstevel@tonic-gate 1170Sstevel@tonic-gate int 1180Sstevel@tonic-gate sigismember(const sigset_t *set, int sig) 1190Sstevel@tonic-gate { 1200Sstevel@tonic-gate if (!sigvalid(sig)) { 1210Sstevel@tonic-gate errno = EINVAL; 1220Sstevel@tonic-gate return (-1); 1230Sstevel@tonic-gate } 1240Sstevel@tonic-gate return ((set->__sigbits[sigword(sig)] & bitmask(sig)) != 0); 1250Sstevel@tonic-gate } 126