Multiple versions of TALK? (was: Major bug in TALK on WIN/TCP for VMS)

[Mark Towfigh]

Note the followup group is comp.protocols.tcp-ip, as I don't read
comp.unix.questions.

In article <1990Jul3.040115.12000 at hayes.fai.alaska.edu>
wisner at hayes.fai.alaska.edu (Bill Wisner) writes:

   There is no RFC for talk.

I know this is true -- it's a problem because there are incompatible
versions of TALK out there.  Specifically, it seems there was a change
between the 4.2BSD talk/talkd and the one in 4.3BSD. I have a few
questions: does the current TALK daemon support both the old and new
versions?  And what about the client?  As far as I can make out, the
new talkd can tell the difference between the two protocols, and when
a remote user requests a connection, the local TALK daemon figures out
whether they are TALKing 4.2-style or 4.3-style, and then tells the
local user to run one of two programs, either /usr/ucb/talk or
/usr/old/talk.

All this aside, I have never seen this work with the 4.2 TALK, only
the 4.3 flavor.  Is there anyone out there running a system which can
talk in both styles, and deal with incoming and outgoing TALK
requests?
--
Mark Towfigh, Racal InterLan, Inc.                 towfiq at interlan.Interlan.COM
W: (508) 263-9929 H: (617) 488-2818                       uunet!interlan!towfiq

  "The Earth is but One Country, and Mankind its Citizens" -- Baha'u'llah