[unix-history] / usr / src / libexec / talkd / talkd.8

.\" Copyright (c) 1983, 1991 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" %sccs.include.redist.man%
.\"
.\"     @(#)talkd.8	6.5 (Berkeley) %G%
.\"
.Dd 
.Dt TALKD 8
.Os BSD 4.3
.Sh NAME
.Nm talkd
.Nd remote user communication server
.Sh SYNOPSIS
.Nm talkd
.Sh DESCRIPTION
.Nm Talkd
is the server that notifies a user that someone else wants to
initiate a conversation.
It acts 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 SEE ALSO
.Xr talk 1 ,
.Xr write 1
.Sh HISTORY
The
.Nm
command appeared in
.Bx 4.3 .
Commit	Line	Data
0fccfdb8	1	.\" Copyright (c) 1983, 1991 The Regents of the University of California.
e1aed699	2	.\" All rights reserved.
04426121	3	.\"
121e56ee	4	.\" %sccs.include.redist.man%
04426121	5	.\"
0fccfdb8	6	.\" @(#)talkd.8 6.5 (Berkeley) %G%
e1aed699	7	.\"
0fccfdb8 CL	8	.Dd
	9	.Dt TALKD 8
	10	.Os BSD 4.3
	11	.Sh NAME
	12	.Nm talkd
	13	.Nd remote user communication server
	14	.Sh SYNOPSIS
	15	.Nm talkd
	16	.Sh DESCRIPTION
	17	.Nm Talkd
	18	is the server that notifies a user that someone else wants to
04426121 KM	19	initiate a conversation.
	20	It acts a repository of invitations, responding to requests
	21	by clients wishing to rendezvous to hold a conversation.
	22	In normal operation, a client, the caller,
0fccfdb8 CL	23	initiates a rendezvous by sending a
	24	.Tn CTL_MSG
	25	to the server of
	26	type
	27	.Tn LOOK_UP
	28	(see
	29	.Aq Pa protocols/talkd.h ) .
04426121 KM	30	This causes the server to search its invitation
	31	tables to check if an invitation currently exists for the caller
	32	(to speak to the callee specified in the message).
	33	If the lookup fails,
0fccfdb8 CL	34	the caller then sends an
	35	.Tn ANNOUNCE
	36	message causing the server to
04426121 KM	37	broadcast an announcement on the callee's login ports requesting contact.
	38	When the callee responds, the local server uses the
	39	recorded invitation to respond with the appropriate rendezvous
	40	address and the caller and callee client programs establish a
	41	stream connection through which the conversation takes place.
0fccfdb8 CL	42	.Sh SEE ALSO
	43	.Xr talk 1 ,
	44	.Xr write 1
	45	.Sh HISTORY
	46	The
	47	.Nm
	48	command appeared in
	49	.Bx 4.3 .