2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A
2N/A/*
2N/A * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A/* Copyright (c) 1988 AT&T */
2N/A/* All Rights Reserved */
2N/A
2N/A#pragma ident "%Z%%M% %I% %E% SMI"
2N/A
2N/A#include "lint.h"
2N/A#include <ctype.h>
2N/A#include <sys/types.h>
2N/A#include <stdlib.h>
2N/A
2N/A#define ATOLL
2N/A
2N/A#if defined ATOI
2N/Atypedef int TYPE;
2N/A#define NAME atoi
2N/A#elif defined ATOL
2N/Atypedef long TYPE;
2N/A#define NAME atol
2N/A#else
2N/Atypedef longlong_t TYPE;
2N/A#define NAME atoll
2N/A#endif
2N/A
2N/ATYPE
2N/ANAME(const char *p)
2N/A{
2N/A TYPE n;
2N/A int c, neg = 0;
2N/A unsigned char *up = (unsigned char *)p;
2N/A
2N/A if (!isdigit(c = *up)) {
2N/A while (isspace(c))
2N/A c = *++up;
2N/A switch (c) {
2N/A case '-':
2N/A neg++;
2N/A /* FALLTHROUGH */
2N/A case '+':
2N/A c = *++up;
2N/A }
2N/A if (!isdigit(c))
2N/A return (0);
2N/A }
2N/A for (n = '0' - c; isdigit(c = *++up); ) {
2N/A n *= 10; /* two steps to avoid unnecessary overflow */
2N/A n += '0' - c; /* accum neg to avoid surprises at MAX */
2N/A }
2N/A return (neg ? n : -n);
2N/A}