1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 30*0Sstevel@tonic-gate /* All Rights Reserved */ 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include "synonyms.h" 34*0Sstevel@tonic-gate #include <ctype.h> 35*0Sstevel@tonic-gate #include <sys/types.h> 36*0Sstevel@tonic-gate #include <stdlib.h> 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #define ATOI 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate #ifdef ATOI 41*0Sstevel@tonic-gate typedef int TYPE; 42*0Sstevel@tonic-gate #define NAME atoi 43*0Sstevel@tonic-gate #else 44*0Sstevel@tonic-gate typedef long TYPE; 45*0Sstevel@tonic-gate #define NAME atol 46*0Sstevel@tonic-gate #endif 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate TYPE 49*0Sstevel@tonic-gate NAME(const char *p) 50*0Sstevel@tonic-gate { 51*0Sstevel@tonic-gate TYPE n; 52*0Sstevel@tonic-gate int c, neg = 0; 53*0Sstevel@tonic-gate unsigned char *up = (unsigned char *)p; 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate if (!isdigit(c = *up)) { 56*0Sstevel@tonic-gate while (isspace(c)) 57*0Sstevel@tonic-gate c = *++up; 58*0Sstevel@tonic-gate switch (c) { 59*0Sstevel@tonic-gate case '-': 60*0Sstevel@tonic-gate neg++; 61*0Sstevel@tonic-gate /* FALLTHROUGH */ 62*0Sstevel@tonic-gate case '+': 63*0Sstevel@tonic-gate c = *++up; 64*0Sstevel@tonic-gate } 65*0Sstevel@tonic-gate if (!isdigit(c)) 66*0Sstevel@tonic-gate return (0); 67*0Sstevel@tonic-gate } 68*0Sstevel@tonic-gate for (n = '0' - c; isdigit(c = *++up); ) { 69*0Sstevel@tonic-gate n *= 10; /* two steps to avoid unnecessary overflow */ 70*0Sstevel@tonic-gate n += '0' - c; /* accum neg to avoid surprises at MAX */ 71*0Sstevel@tonic-gate } 72*0Sstevel@tonic-gate return (neg ? n : -n); 73*0Sstevel@tonic-gate } 74