C语言ip地址转十六进制

Joker No.117

已于 2023-04-20 21:35:03 修改

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文章标签： c语言

于 2021-12-22 08:42:21 首次发布

本文链接：https://blog.youkuaiyun.com/qq_65438534/article/details/122077339

版权

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

//192.168.44.5 转 0xc0a82c05
//0c  a8  2c 05

int toInt(const char *str)
{
	int num = 0;
	char buf[20] = {0};
	strcpy( buf , str );
	char *s = strtok( buf , ".");
	while( s != NULL )
	{
		num  = (num << 8) + atoi( s );
		s = strtok( NULL ,".");
	}
	return num;
}
int main()
{
	char *s = "192.168.44.5";
	int ret = toInt( s );
	printf("ret = %x\n" , ret);
	return 0;
}