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1.1 root 1: .\" Copyright (c) 1983 The Regents of the University of California.
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18: .\" @(#)talkd.8 6.4 (Berkeley) 6/24/90
19: .\"
20: .TH TALKD 8 "June 24, 1990"
21: .UC 6
22: .SH NAME
23: talkd \- remote user communication server
24: .SH SYNOPSIS
25: .B talkd
26: .SH DESCRIPTION
27: .I Talkd
28: is the server that notifies a user that somebody else wants to
29: initiate a conversation.
30: It acts a repository of invitations, responding to requests
31: by clients wishing to rendezvous to hold a conversation.
32: In normal operation, a client, the caller,
33: initiates a rendezvous by sending a CTL_MSG to the server of
34: type LOOK_UP (see
35: .RI < protocols/talkd.h >).
36: This causes the server to search its invitation
37: tables to check if an invitation currently exists for the caller
38: (to speak to the callee specified in the message).
39: If the lookup fails,
40: the caller then sends an ANNOUNCE message causing the server to
41: broadcast an announcement on the callee's login ports requesting contact.
42: When the callee responds, the local server uses the
43: recorded invitation to respond with the appropriate rendezvous
44: address and the caller and callee client programs establish a
45: stream connection through which the conversation takes place.
46: .SH SEE ALSO
47: talk(1), write(1)
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