src/net/uiplib.c

/*
 * Copyright (c) 2004, Adam Dunkels and the Swedish Institute of
 * Computer Science.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This file is part of the uIP TCP/IP stack and the Contiki operating system.
 *
 * $Id: uiplib.c,v 1.3 2010/12/14 22:45:22 dak664 Exp $
 *
 */


#include "net/uip.h"
#include "net/uiplib.h"
#include <string.h>

#define DEBUG DEBUG_NONE
#include "net/uip_debug.h"

/*---------------------------------------------------------------------------*/
int uiplib_ipaddrconv(const char *addrstr, uip_ipaddr_t *ipaddr)
{
	unsigned char tmp;
	char c;
	unsigned char i, j;

	tmp = 0;

	for (i = 0; i < 4; ++i) {
		j = 0;
		do {
			c = *addrstr;
			++j;
			if (j > 4) {
				return 0;
			}
			if (c == '.' || c == 0) {
				ipaddr->u8[i] = tmp;
				tmp = 0;
			} else if (c >= '0' && c <= '9') {
				tmp = (tmp * 10) + (c - '0');
			} else {
				return 0;
			}
			++addrstr;
		} while (c != '.' && c != 0);
	}
	return 1;
}

/*---------------------------------------------------------------------------*/