netstringtoip.c

来自「lwIP-Softools-11Jul2002-alpha」· C语言 代码 · 共 38 行

/*
 * Functions to start the ethernet system.
 *
 * (C) 2002 Compendium Technologies, Inc.
 * (C) 2002 Softools, Inc.
 * All rights reserved.
 *
 * This software is the proprietary information of Compendium Technologies, Inc.
 * and Softools, Inc. Use is subject to license terms.
 */
#include <string.h>
#include <stdlib.h>
#include "rabbitlwip.h"

/**
 * Note: this only converts ipv4 right now. It also only currently works for
 * little endian systems.
 */
int netStringToIP(char * address, struct ip_addr * nsip)
{
    char i;

    nsip->addr = 0L;
    for (i = 0; i <= 24; i += 8)
    {
        //nsip->addr += (long)atoi(address) << (long)i; 
        long byte = atol(address);
        nsip->addr += byte << (long)i; 
        address = strchr(address, '.');
        if (address == NULL)
        {
            break;
        }
        address++;
    }
    return (i == 24);
}