public static extern int recvfrom(
int s,
byte[] buf,
int len,
int flags,
ref SockAddr_In from,
int fromlen);
public static extern int sendto(
int s,
byte[] buf,
int len,
int flags,
ref SockAddr_In to,
int tolen
);
public static extern int bind(int s, ref SockAddr_In name, int namelen);
public static extern int connect(
int socket,
ref SockAddr_In name,
int namelen
);
