C语言SOCKET获取本机所有IP

WORD wVersionRequested;
WSADATA wsaData;

wVersionRequested = MAKEWORD( 1, 1 );
WSAStartup( wVersionRequested, &wsaData );

void printHostIp()
{
char hostName[255];
char *ip;
PHOSTENT hostinfo;

gethostname(hostName, sizeof(hostName));

hostinfo = gethostbyname(hostName);

printf("Your all IP address are\n");

for(int i = 0; hostinfo->h_addr_list[i]; i++)
{
ip = inet_ntoa(*(in_addr*) hostinfo->h_addr_list[i]);
printf(" %s\n" ,ip);
}

}