Send Command (Net Bios, 14h)

        This command sends data to the machine or process with which a
        session as been established. The LSN field is set to the session
        number, and BUFADR and BUFLEN are set to the size and length of
        the data to be transferred. The remote session must have issued
        (or issue before the time-out specified earlier in STO) a RECEIVE
        or RECEIVE ANY command.

        SENDs are performed in the order in which they are issued. If an
        error occurs on the send, then the session is terminated.