호스트 IP 주소 얻기

#include
#include

void GetHostIP(char* ip){
        WORD wVersionRequested;
        WSADATA wsaData;
        char name[255];
        PHOSTENT hostinfo;
        wVersionRequested = MAKEWORD(2,0);

        if(WSAStartup(wVersionRequested,&wsaData) == 0){
                if(gethostname(name,sizeof(name)) ==0){
                        if((hostinfo = gethostbyname(name)) != NULL){
                                strcpy(ip,inet_ntoa(*(struct in_addr*)*hostinfo->h_addr_list));
                        }
                }
        }

        WSACleanup();
}