C语言_IP地址解析

最新推荐文章于 2023-06-08 22:32:18 发布

转载最新推荐文章于 2023-06-08 22:32:18 发布 · 349 阅读

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原文链接：https://yq.aliyun.com/articles/670565

文章标签：

#c/c++

本文通过一个C语言程序示例介绍了如何解析十六进制输入的IP地址，并将其转换为点分十进制格式。此外，还展示了如何使用循环移位函数处理整数。

#include<stdio.h>
#include<stdlib.h>

void main()
{
    unsigned long input_IP;
    unsigned int BeginByte, MidByte, ThirdByte, EndByte;
    unsigned int_rotate = 0x07;

    printf("*****************************************************\n");
    printf("**This program is to show how to parse a IP address**\n");
    printf("*******************************************************");
    printf("Please enter the IP address(hex) you want parse:");
    scanf_s("%lx", &input_IP);
    BeginByte = (input_IP>>24)&~(~0<<8);
    MidByte = (input_IP>>16)&~(~0<<8);
    ThirdByte = (input_IP>>8)&~(~0<<8);
    EndByte = input_IP&~(~0<<8);
    printf("******************************************************\n");
    printf("The IP address after parsed is: %d.%d.%d.%d\n", BeginByte, MidByte, ThirdByte, EndByte);
    /*介绍两个循环移位函数*/
    printf("******************************************************\n");
    printf("%u after rotated twice is =%u\n", int_rotate, _rotl(int_rotate, 2));
    printf("%u after rotated once is =%u\n", int_rotate, _rotr(int_rotate, 1));
    scanf_s("%d", int_rotate);
    system("@pause");

}