RFC 1159 (rfc1159) - Page 2 of 2

Message Send Protocol

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RFC 1159                 Message Send Protocol                 June 1990


   is sent back to the client containing exactly the same data.

Message Syntax

   The message should consist of several parts.  The first part is a
   single octet indicating the protocol revision, currently decimal 65,
   'A'.  The second part is the name of the user that the message is
   directed to.  This and the remaining parts are null-terminated, and
   consist of eight-bit characters.  Do not strip the eighth bit of the
   characters.  The third part is the name of the terminal.  The fourth
   part is the actual message.

   The total length of the message shall be less than 512 octets.  This
   includes all four parts, and any terminating nulls.

   If the terminal part is empty, then "the right" terminal is chosen.
   If the user part is empty, then the message is written on the
   console.

   If this protocol is changed, the revision number will be changed.  In
   no case will any of the four parts be removed.

Advisories

   It is advisable for servers to strip escape sequences before sending
   them to actual terminals.  Some terminals can do nasty things when
   you send them certain escape sequence.

   In both the TCP and UDP versions of the service, checksums are always
   used.

Security Considerations

   Security issues are not addressed in this memo.

Author's Address

   Russell Nelson
   Educational Computing System
   Clarkson University
   Potsdam, NY 13699-5730

   Phone:  (315) 268-6455

   EMail:  






Nelson
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