&& ( errorCode == 0 || errorCode == NtStatus.NT_STATUS_BUFFER_OVERFLOW ) ) {
                // overflow indicator normal for pipe
                SmbComReadAndXResponse r = (SmbComReadAndXResponse) resp;
                int off = SMB1_HEADER_LENGTH;
                /* WordCount thru dataOffset always 27 */
                readn(this.in, buffer, 4 + off, 27);
                off += 27;