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jeremybenn |
/*
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* Copyright (c) 2004, Adam Dunkels and the Swedish Institute of
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* Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the uIP TCP/IP stack
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*
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* $Id: uiplib.c 2 2011-07-17 20:13:17Z filepang@gmail.com $
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*
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*/
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#include "uip.h"
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#include "uiplib.h"
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/*-----------------------------------------------------------------------------------*/
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unsigned char
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uiplib_ipaddrconv(char *addrstr, unsigned char *ipaddr)
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{
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unsigned char tmp;
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char c;
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unsigned char i, j;
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tmp = 0;
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for(i = 0; i < 4; ++i) {
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j = 0;
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do {
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c = *addrstr;
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++j;
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if(j > 4) {
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return 0;
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}
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if(c == '.' || c == 0) {
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*ipaddr = tmp;
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++ipaddr;
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tmp = 0;
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} else if(c >= '0' && c <= '9') {
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tmp = (tmp * 10) + (c - '0');
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} else {
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return 0;
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}
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++addrstr;
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} while(c != '.' && c != 0);
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}
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return 1;
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}
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/*-----------------------------------------------------------------------------------*/
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