int WSAAPI getnameinfo(
  __in   const struct sockaddr FAR *sa,
  __in   socklen_t salen,
  __out  char FAR *host,
  __in   DWORD hostlen,
  __out  char FAR *serv,
  __in   DWORD servlen,
  __in   int flags
);

Private Declare Function getnameinfo Lib "Ws2_32" (ByRef sa As sockaddr_in, _
  ByVal salen As Long, ByRef Host As String, ByVal hostlen As Long, ByRef serv _
  As String, ByVal servlen As Long, ByVal flags As Long) As Long

Private Declare Function getnameinfo Lib "Ws2_32" (ByRef sa As sockaddr_in, _
  ByVal salen As Long, ByVal Host As String, ByVal hostlen As Long, ByVal serv _
  As String, ByVal servlen As Long, ByVal flags As Long) As Long