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1.1 root 1: .\" Copyright (c) 1983 The Regents of the University of California.
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18: .\" @(#)comsat.8 6.4 (Berkeley) 6/24/90
19: .\"
20: .TH COMSAT 8 "June 24, 1990"
21: .UC 5
22: .SH NAME
23: comsat \- biff server
24: .SH SYNOPSIS
25: .B comsat
26: .SH DESCRIPTION
27: .I Comsat
28: is the server process which receives reports of incoming mail
29: and notifies users if they have requested this service.
30: .I Comsat
31: receives messages on a datagram port associated with the ``biff'' service
32: specification (see
33: .IR services (5)
34: and
35: .IR inetd (8)).
36: The one line messages are of the form
37: .PP
38: .ti +0.5i
39: user@mailbox-offset
40: .PP
41: If the
42: .I user
43: specified is logged in to the system and the associated terminal has
44: the owner execute bit turned on (by a ``biff y''), the
45: .I offset
46: is used as a seek offset into the appropriate mailbox file and
47: the first 7 lines or 560 characters of the message are printed
48: on the user's terminal. Lines which appear to be part of
49: the message header other than the ``From'', ``To'', ``Date'',
50: or ``Subject'' lines are not included in the displayed message.
51: .SH FILES
52: .DT
53: /var/run/utmp to find out who's logged on and on what terminals
54: .SH "SEE ALSO"
55: biff(1), inetd(8)
56: .SH BUGS
57: The message header filtering is prone to error.
58: The density of the information presented is near the theoretical minimum.
59: .PP
60: Users should be notified of mail which arrives on other
61: machines than the one to which they are currently logged in.
62: .PP
63: The notification should appear in a separate window so it
64: does not mess up the screen.
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