17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*8cd45542Sraf * Common Development and Distribution License (the "License"). 6*8cd45542Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 21*8cd45542Sraf 227c478bd9Sstevel@tonic-gate /* 23*8cd45542Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 307c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate /* 337c478bd9Sstevel@tonic-gate * POSIX signal manipulation functions. 347c478bd9Sstevel@tonic-gate */ 357c478bd9Sstevel@tonic-gate #pragma weak sigfillset = _sigfillset 367c478bd9Sstevel@tonic-gate #pragma weak sigemptyset = _sigemptyset 377c478bd9Sstevel@tonic-gate #pragma weak sigaddset = _sigaddset 387c478bd9Sstevel@tonic-gate #pragma weak sigdelset = _sigdelset 397c478bd9Sstevel@tonic-gate #pragma weak sigismember = _sigismember 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate #include "synonyms.h" 427c478bd9Sstevel@tonic-gate #include <sys/types.h> 437c478bd9Sstevel@tonic-gate #include <stdio.h> 447c478bd9Sstevel@tonic-gate #include <sys/param.h> 457c478bd9Sstevel@tonic-gate #include <sys/errno.h> 467c478bd9Sstevel@tonic-gate #include <sys/signal.h> 477c478bd9Sstevel@tonic-gate #include <errno.h> 487c478bd9Sstevel@tonic-gate #include "libc.h" 497c478bd9Sstevel@tonic-gate 507c478bd9Sstevel@tonic-gate #define SIGSETSIZE 4 517c478bd9Sstevel@tonic-gate #define MAXBITNO (NBPW*8) 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate static sigset_t sigs; 547c478bd9Sstevel@tonic-gate static int sigsinit; 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate #define sigword(n) ((n-1)/MAXBITNO) 577c478bd9Sstevel@tonic-gate #define bitmask(n) (1L<<((n-1)%MAXBITNO)) 587c478bd9Sstevel@tonic-gate 597c478bd9Sstevel@tonic-gate static int 607c478bd9Sstevel@tonic-gate sigvalid(int sig) 617c478bd9Sstevel@tonic-gate { 627c478bd9Sstevel@tonic-gate if (sig <= 0 || sig > (MAXBITNO * SIGSETSIZE)) 637c478bd9Sstevel@tonic-gate return (0); 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate if (!sigsinit) { 667c478bd9Sstevel@tonic-gate (void) __sigfillset(&sigs); 677c478bd9Sstevel@tonic-gate sigsinit++; 687c478bd9Sstevel@tonic-gate } 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate return ((sigs.__sigbits[sigword(sig)] & bitmask(sig)) != 0); 717c478bd9Sstevel@tonic-gate } 727c478bd9Sstevel@tonic-gate 737c478bd9Sstevel@tonic-gate int 747c478bd9Sstevel@tonic-gate sigfillset(sigset_t *set) 757c478bd9Sstevel@tonic-gate { 767c478bd9Sstevel@tonic-gate if (!sigsinit) { 777c478bd9Sstevel@tonic-gate (void) __sigfillset(&sigs); 787c478bd9Sstevel@tonic-gate sigsinit++; 797c478bd9Sstevel@tonic-gate } 807c478bd9Sstevel@tonic-gate 817c478bd9Sstevel@tonic-gate *set = sigs; 827c478bd9Sstevel@tonic-gate return (0); 837c478bd9Sstevel@tonic-gate } 847c478bd9Sstevel@tonic-gate 857c478bd9Sstevel@tonic-gate int 867c478bd9Sstevel@tonic-gate sigemptyset(sigset_t *set) 877c478bd9Sstevel@tonic-gate { 887c478bd9Sstevel@tonic-gate set->__sigbits[0] = 0; 897c478bd9Sstevel@tonic-gate set->__sigbits[1] = 0; 907c478bd9Sstevel@tonic-gate set->__sigbits[2] = 0; 917c478bd9Sstevel@tonic-gate set->__sigbits[3] = 0; 927c478bd9Sstevel@tonic-gate return (0); 937c478bd9Sstevel@tonic-gate } 947c478bd9Sstevel@tonic-gate 957c478bd9Sstevel@tonic-gate int 967c478bd9Sstevel@tonic-gate sigaddset(sigset_t *set, int sig) 977c478bd9Sstevel@tonic-gate { 987c478bd9Sstevel@tonic-gate if (!sigvalid(sig)) { 997c478bd9Sstevel@tonic-gate errno = EINVAL; 1007c478bd9Sstevel@tonic-gate return (-1); 1017c478bd9Sstevel@tonic-gate } 1027c478bd9Sstevel@tonic-gate set->__sigbits[sigword(sig)] |= bitmask(sig); 1037c478bd9Sstevel@tonic-gate return (0); 1047c478bd9Sstevel@tonic-gate } 1057c478bd9Sstevel@tonic-gate 1067c478bd9Sstevel@tonic-gate int 1077c478bd9Sstevel@tonic-gate sigdelset(sigset_t *set, int sig) 1087c478bd9Sstevel@tonic-gate { 1097c478bd9Sstevel@tonic-gate if (!sigvalid(sig)) { 1107c478bd9Sstevel@tonic-gate errno = EINVAL; 1117c478bd9Sstevel@tonic-gate return (-1); 1127c478bd9Sstevel@tonic-gate } 1137c478bd9Sstevel@tonic-gate set->__sigbits[sigword(sig)] &= ~bitmask(sig); 1147c478bd9Sstevel@tonic-gate return (0); 1157c478bd9Sstevel@tonic-gate } 1167c478bd9Sstevel@tonic-gate 1177c478bd9Sstevel@tonic-gate int 1187c478bd9Sstevel@tonic-gate sigismember(const sigset_t *set, int sig) 1197c478bd9Sstevel@tonic-gate { 1207c478bd9Sstevel@tonic-gate if (!sigvalid(sig)) { 1217c478bd9Sstevel@tonic-gate errno = EINVAL; 1227c478bd9Sstevel@tonic-gate return (-1); 1237c478bd9Sstevel@tonic-gate } 1247c478bd9Sstevel@tonic-gate return ((set->__sigbits[sigword(sig)] & bitmask(sig)) != 0); 1257c478bd9Sstevel@tonic-gate } 126