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*7257d1b4Sraf * Common Development and Distribution License (the "License"). 6*7257d1b4Sraf * 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*7257d1b4Sraf 227c478bd9Sstevel@tonic-gate /* 23*7257d1b4Sraf * 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 /* Copyright (c) 1988 AT&T */ 287c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 297c478bd9Sstevel@tonic-gate 30*7257d1b4Sraf #include "lint.h" 317c478bd9Sstevel@tonic-gate #include <ctype.h> 327c478bd9Sstevel@tonic-gate #include <sys/types.h> 337c478bd9Sstevel@tonic-gate #include <stdlib.h> 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate #define ATOLL 367c478bd9Sstevel@tonic-gate 377c478bd9Sstevel@tonic-gate #if defined ATOI 387c478bd9Sstevel@tonic-gate typedef int TYPE; 397c478bd9Sstevel@tonic-gate #define NAME atoi 407c478bd9Sstevel@tonic-gate #elif defined ATOL 417c478bd9Sstevel@tonic-gate typedef long TYPE; 427c478bd9Sstevel@tonic-gate #define NAME atol 437c478bd9Sstevel@tonic-gate #else 447c478bd9Sstevel@tonic-gate typedef longlong_t TYPE; 457c478bd9Sstevel@tonic-gate #define NAME atoll 467c478bd9Sstevel@tonic-gate #endif 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate TYPE NAME(const char * p)497c478bd9Sstevel@tonic-gateNAME(const char *p) 507c478bd9Sstevel@tonic-gate { 517c478bd9Sstevel@tonic-gate TYPE n; 527c478bd9Sstevel@tonic-gate int c, neg = 0; 537c478bd9Sstevel@tonic-gate unsigned char *up = (unsigned char *)p; 547c478bd9Sstevel@tonic-gate 557c478bd9Sstevel@tonic-gate if (!isdigit(c = *up)) { 567c478bd9Sstevel@tonic-gate while (isspace(c)) 577c478bd9Sstevel@tonic-gate c = *++up; 587c478bd9Sstevel@tonic-gate switch (c) { 597c478bd9Sstevel@tonic-gate case '-': 607c478bd9Sstevel@tonic-gate neg++; 617c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 627c478bd9Sstevel@tonic-gate case '+': 637c478bd9Sstevel@tonic-gate c = *++up; 647c478bd9Sstevel@tonic-gate } 657c478bd9Sstevel@tonic-gate if (!isdigit(c)) 667c478bd9Sstevel@tonic-gate return (0); 677c478bd9Sstevel@tonic-gate } 687c478bd9Sstevel@tonic-gate for (n = '0' - c; isdigit(c = *++up); ) { 697c478bd9Sstevel@tonic-gate n *= 10; /* two steps to avoid unnecessary overflow */ 707c478bd9Sstevel@tonic-gate n += '0' - c; /* accum neg to avoid surprises at MAX */ 717c478bd9Sstevel@tonic-gate } 727c478bd9Sstevel@tonic-gate return (neg ? n : -n); 737c478bd9Sstevel@tonic-gate } 74