VC++如何得到本机名？

#include<stdio.h>
#include<winsock2.h>

#pragma comment(lib,"ws2_32.lib")

void getIPorName(void)
{
WSADATA wsaData;
char name[155];
char *ip;
PHOSTENT hostinfo;
if ( WSAStartup( MAKEWORD(1,1), &wsaData ) == 0 ) {
if( gethostname ( name, sizeof(name)) == 0) {
if((hostinfo = gethostbyname(name)) != NULL) {
ip = inet_ntoa (*(struct in_addr *)*hostinfo->h_addr_list);
printf("本机IP:%s\n本机名:%s\n",ip,name);
}
}
WSACleanup( );
}
}

int main(void)
{
getIPorName();
return 0;
}

gethostname((char*)LocalName, sizeof(LocalName)-1);