1258945Sroberto/* 2258945Sroberto * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") 3258945Sroberto * Copyright (C) 2001-2003 Internet Software Consortium. 4258945Sroberto * 5258945Sroberto * Permission to use, copy, modify, and/or distribute this software for any 6258945Sroberto * purpose with or without fee is hereby granted, provided that the above 7258945Sroberto * copyright notice and this permission notice appear in all copies. 8258945Sroberto * 9258945Sroberto * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10258945Sroberto * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11258945Sroberto * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12258945Sroberto * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13258945Sroberto * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14258945Sroberto * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15258945Sroberto * PERFORMANCE OF THIS SOFTWARE. 16258945Sroberto */ 17258945Sroberto 18258945Sroberto/* $Id: parseint.c,v 1.8 2007/06/19 23:47:17 tbox Exp $ */ 19258945Sroberto 20258945Sroberto/*! \file */ 21258945Sroberto 22258945Sroberto#include <config.h> 23258945Sroberto 24258945Sroberto#include <ctype.h> 25258945Sroberto#include <errno.h> 26258945Sroberto#include <limits.h> 27258945Sroberto 28258945Sroberto#include <isc/parseint.h> 29258945Sroberto#include <isc/result.h> 30258945Sroberto#include <isc/stdlib.h> 31258945Sroberto 32258945Srobertoisc_result_t 33258945Srobertoisc_parse_uint32(isc_uint32_t *uip, const char *string, int base) { 34258945Sroberto unsigned long n; 35258945Sroberto char *e; 36258945Sroberto if (! isalnum((unsigned char)(string[0]))) 37258945Sroberto return (ISC_R_BADNUMBER); 38258945Sroberto errno = 0; 39258945Sroberto n = strtoul(string, &e, base); 40258945Sroberto if (*e != '\0') 41258945Sroberto return (ISC_R_BADNUMBER); 42258945Sroberto if (n == ULONG_MAX && errno == ERANGE) 43258945Sroberto return (ISC_R_RANGE); 44258945Sroberto *uip = n; 45258945Sroberto return (ISC_R_SUCCESS); 46258945Sroberto} 47258945Sroberto 48258945Srobertoisc_result_t 49258945Srobertoisc_parse_uint16(isc_uint16_t *uip, const char *string, int base) { 50258945Sroberto isc_uint32_t val; 51258945Sroberto isc_result_t result; 52258945Sroberto result = isc_parse_uint32(&val, string, base); 53258945Sroberto if (result != ISC_R_SUCCESS) 54258945Sroberto return (result); 55258945Sroberto if (val > 0xFFFF) 56258945Sroberto return (ISC_R_RANGE); 57258945Sroberto *uip = (isc_uint16_t) val; 58258945Sroberto return (ISC_R_SUCCESS); 59258945Sroberto} 60258945Sroberto 61258945Srobertoisc_result_t 62258945Srobertoisc_parse_uint8(isc_uint8_t *uip, const char *string, int base) { 63258945Sroberto isc_uint32_t val; 64258945Sroberto isc_result_t result; 65258945Sroberto result = isc_parse_uint32(&val, string, base); 66258945Sroberto if (result != ISC_R_SUCCESS) 67258945Sroberto return (result); 68258945Sroberto if (val > 0xFF) 69258945Sroberto return (ISC_R_RANGE); 70258945Sroberto *uip = (isc_uint8_t) val; 71258945Sroberto return (ISC_R_SUCCESS); 72258945Sroberto} 73