linux 通过域名获得ip

代码

#include 
#include 
int main(int argc, char *argv[])
{
        if (argc != 2)
        {
                printf("Usage:%s domain_name\n", argv[0]);
                return 1;
        }


        struct hostent *he; 
        he = gethostbyname( argv[1]);
        char destIP[128];
        char **phe = NULL;
        for( phe=he->h_addr_list ; NULL != *phe ; ++phe){
                inet_ntop(he->h_addrtype,*phe,destIP,sizeof(destIP));
                printf("%s\n",destIP);


        }
}

编译
[root@ff1x ~/ggg]#  gcc -o gh gh.c
用法
./gh 域名
用例
[root@ff1x ~/ggg]# ./gh www.baidu.com
61.135.169.105
61.135.169.125
[root@ff1x ~/ggg]#