Das Telnet-Subsystem

Der Code des Telnet-Subsystems sollte leicht in eine Kernspeicherseite passen, denn er tut sehr wenig. Er stellt effektiv einen Nebenschluss im Benutzer-HOST zwischen dem entfernten Benutzer und dem bedienenden HOST her. Die Telnet-Befehle sind:

   ESCAPE CHAR IS ___________<CR>      Declares a character which
                                       Telnet will watch for.
                                       Subsequent strings typed
                                       between this character and
                                       a carriage return are not
                                       shunted through to the serving
                                       host, but sent instead to the
                                       Telnet program in the user's
                                       local HOST.

Dieses Escape-Zeichen ist nicht dasselbe wie das Löschzeichen des Hosts des Benutzers.

   CONNECT TO __________________<CR>   The official site name of the
                                       desired serving HOST is typed
                                       (i.e.: SRI, UTAH, UCLA, UCSB).
                                       Telnet attempts to establish a
                                       connection.  If the attempt is
                                       successful, the following
                                       characters are shunted through
                                       the user's local machine.  The
                                       connection places the user in
                                       the pre-logged in state at
                                       the serving HOST.

   LOGOUT<CR>                          Telnet issues the logout command
                                       sequence to the serving HOST.
                                       If the user simply rubs out and
                                       kills his PDP-10 job, the
                                       PDP-10 will indicate to the 940
                                       that the connection is closed.
                                       The 940 system primitives do
                                       whatever they do when a normal
                                       dataphone connection is
                                       suddenly broken.

   COPY FILE                           A file copying command is
                                       available in TELNET to
                                       move data along on auxiliary
                                       connections from the
                                       user's HOST file system
                                       to the serving HOST.

        On the 940 this is:

   COPY <file name> TO NETWRK.
   -                   -     -

        On the PDP-10:

   NETWRK <- DSK: <file name>
   --------------------------

Diese TELNET-Befehle werden akzeptiert, wenn das TELNET-Subsystem zum ersten Mal betreten wird oder nach dem deklarierten Escape-Zeichen.