netiptostring.c

来自「lwIP-Softools-11Jul2002-alpha」· C语言 代码 · 共 33 行

/*
 * Utility function to convert an ip address to a string.
 *
 * (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.
 */
char *
netIPToString(struct ip_addr * nsip, char * address)
{
    u32_t ip = nsip->addr;
    char i;
    *address = 0;
    for (i = 0; i <= 24; i+= 8)
    {
        if (i != 0)
            strcat(address, ".");
        itoa((int) (ip >> i) & 0xff, strchr(address, 0), 10);
    }
    return address;
}