/**
     * Retrieve all addresses of a host by it's address. NetBIOS hosts can
     * have many names for a given IP address. The name and IP address make the
     * NetBIOS address. This provides a way to retrieve the other names for a
     * host with the same IP address.
     *
     * @param addr
     *            the address to query
     * @return resolved addresses
     * @throws UnknownHostException

                        if( ans != null ) {
                            ans.hostName.srcHashCode = 0; // just has to be different
                                                          // from other methods
                            return ans;
                        }
                        break;
                    case RESOLVER_WINS:
                    case RESOLVER_BCAST: