Annotation of src/libexec/talkd/talkd.8, Revision 1.1
1.1 ! cgd 1: .\" Copyright (c) 1983, 1991 The Regents of the University of California.
! 2: .\" All rights reserved.
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! 8: .\" notice, this list of conditions and the following disclaimer.
! 9: .\" 2. Redistributions in binary form must reproduce the above copyright
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! 15: .\" California, Berkeley and its contributors.
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! 20: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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! 32: .\" @(#)talkd.8 6.5 (Berkeley) 3/16/91
! 33: .\"
! 34: .Dd March 16, 1991
! 35: .Dt TALKD 8
! 36: .Os BSD 4.3
! 37: .Sh NAME
! 38: .Nm talkd
! 39: .Nd remote user communication server
! 40: .Sh SYNOPSIS
! 41: .Nm talkd
! 42: .Sh DESCRIPTION
! 43: .Nm Talkd
! 44: is the server that notifies a user that someone else wants to
! 45: initiate a conversation.
! 46: It acts a repository of invitations, responding to requests
! 47: by clients wishing to rendezvous to hold a conversation.
! 48: In normal operation, a client, the caller,
! 49: initiates a rendezvous by sending a
! 50: .Tn CTL_MSG
! 51: to the server of
! 52: type
! 53: .Tn LOOK_UP
! 54: (see
! 55: .Aq Pa protocols/talkd.h ) .
! 56: This causes the server to search its invitation
! 57: tables to check if an invitation currently exists for the caller
! 58: (to speak to the callee specified in the message).
! 59: If the lookup fails,
! 60: the caller then sends an
! 61: .Tn ANNOUNCE
! 62: message causing the server to
! 63: broadcast an announcement on the callee's login ports requesting contact.
! 64: When the callee responds, the local server uses the
! 65: recorded invitation to respond with the appropriate rendezvous
! 66: address and the caller and callee client programs establish a
! 67: stream connection through which the conversation takes place.
! 68: .Sh SEE ALSO
! 69: .Xr talk 1 ,
! 70: .Xr write 1
! 71: .Sh HISTORY
! 72: The
! 73: .Nm
! 74: command appeared in
! 75: .Bx 4.3 .
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