NetBSD/libexec/talkd/talkd.8

.\"	$NetBSD: talkd.8,v 1.8 2003/08/07 09:46:50 agc Exp $
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.\"     @(#)talkd.8	8.2 (Berkeley) 12/11/93
.\"
.Dd July 5, 1998
.Dt TALKD 8
.Os
.Sh NAME
.Nm talkd
.Nd remote user communication server
.Sh SYNOPSIS
.Nm
.Op Fl dl
.Sh DESCRIPTION
.Nm
is the server that notifies a user that someone else wants to
initiate a conversation.
It acts as a repository of invitations, responding to requests
by clients wishing to rendezvous to hold a conversation.
In normal operation, a client, the caller,
initiates a rendezvous by sending a
.Tn CTL_MSG
to the server of
type
.Tn LOOK_UP
(see
.Aq Pa protocols/talkd.h ) .
This causes the server to search its invitation
tables to check if an invitation currently exists for the caller
(to speak to the callee specified in the message).
If the lookup fails,
the caller then sends an
.Tn ANNOUNCE
message causing the server to
broadcast an announcement on the callee's login ports requesting contact.
When the callee responds, the local server uses the
recorded invitation to respond with the appropriate rendezvous
address and the caller and callee client programs establish a
stream connection through which the conversation takes place.
.Sh OPTIONS
.Nm
supports the following options:
.Bl -tag -width 12345
.It Fl d
The
.Fl d
option turns on debugging logging.
.It Fl l
The
.Fl l
option turns on accounting logging for
.Nm
via the
.Xr syslogd 8
service.
.El
.Sh SEE ALSO
.Xr talk 1 ,
.Xr write 1 ,
.Xr syslog 3 ,
.Xr syslogd 8
.Sh HISTORY
The
.Nm
command appeared in
.Bx 4.3 .