try to preserve To, etc (or translate from Apparently-To)
[unix-history] / usr / src / libexec / comsat / comsat.8
CommitLineData
05d45a21
KM
1.\" Copyright (c) 1983 Regents of the University of California.
2.\" All rights reserved. The Berkeley software License Agreement
3.\" specifies the terms and conditions for redistribution.
4.\"
e8145b60 5.\" @(#)comsat.8 6.2 (Berkeley) %G%
05d45a21 6.\"
fb3f6c73 7.TH COMSAT 8C ""
05d45a21
KM
8.UC 5
9.SH NAME
10comsat \- biff server
11.SH SYNOPSIS
12.B /etc/comsat
13.SH DESCRIPTION
14.I Comsat
e8145b60 15is the server process which receives reports of incoming mail
05d45a21
KM
16and notifies users if they have requested this service.
17.I Comsat
e8145b60 18receives messages on a datagram port associated with the ``biff'' service
05d45a21 19specification (see
e8145b60
MK
20.IR services (5)
21and
22.IR inetd (8)).
23The one line messages are of the form
05d45a21
KM
24.PP
25.ti +0.5i
26user@mailbox-offset
27.PP
28If the
29.I user
30specified is logged in to the system and the associated terminal has
31the owner execute bit turned on (by a ``biff y''), the
32.I offset
33is used as a seek offset into the appropriate mailbox file and
34the first 7 lines or 560 characters of the message are printed
35on the user's terminal. Lines which appear to be part of
36the message header other than the ``From'', ``To'', ``Date'',
37or ``Subject'' lines are not included in the displayed message.
38.SH FILES
39.DT
40/etc/utmp to find out who's logged on and on what terminals
41.SH "SEE ALSO"
e8145b60 42biff(1), inetd(8)
05d45a21
KM
43.SH BUGS
44The message header filtering is prone to error.
e8145b60 45The density of the information presented is near the theoretical minimum.
05d45a21
KM
46.PP
47Users should be notified of mail which arrives on other
e8145b60 48machines than the one to which they are currently logged in.
05d45a21
KM
49.PP
50The notification should appear in a separate window so it
51does not mess up the screen.