xref: /freebsd/libexec/talkd/talkd.8 (revision 6990ffd8a95caaba6858ad44ff1b3157d1efba8f)
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32.\"     @(#)talkd.8	8.2 (Berkeley) 12/11/93
33.\" $FreeBSD$
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35.Dd December 11, 1993
36.Dt TALKD 8
37.Os
38.Sh NAME
39.Nm talkd
40.Nd remote user communication server
41.Sh SYNOPSIS
42.Nm
43.Sh DESCRIPTION
44.Nm Talkd
45is the server that notifies a user that someone else wants to
46initiate a conversation.
47It acts as a repository of invitations, responding to requests
48by clients wishing to rendezvous to hold a conversation.
49In normal operation, a client, the caller,
50initiates a rendezvous by sending a
51.Tn CTL_MSG
52to the server of
53type
54.Tn LOOK_UP
55(see
56.Aq Pa protocols/talkd.h ) .
57This causes the server to search its invitation
58tables to check if an invitation currently exists for the caller
59(to speak to the callee specified in the message).
60.Pp
61If the lookup fails,
62the caller then sends an
63.Tn ANNOUNCE
64message causing the server to
65broadcast an announcement on the callee's login ports requesting contact.
66.Pp
67When the callee responds, the local server uses the
68recorded invitation to respond with the appropriate rendezvous
69address and the caller and callee client programs establish a
70stream connection through which the conversation takes place.
71.Sh SEE ALSO
72.Xr talk 1 ,
73.Xr write 1
74.Sh HISTORY
75The
76.Nm
77command appeared in
78.Bx 4.3 .
79