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1.1 root 1: .TH COMSAT 8C "18 July 1983"
2: .UC 4
3: .SH NAME
4: comsat \- biff server
5: .SH SYNOPSIS
6: .B /etc/comsat
7: .SH DESCRIPTION
8: .I Comsat
9: is the server process which listens for reports of incoming mail
10: and notifies users if they have requested this service.
11: .I Comsat
12: listens on a datagram port associated with the ``biff'' service
13: specification (see
14: .IR services (5))
15: for one line messages of the form
16: .PP
17: .ti +0.5i
18: user@mailbox-offset
19: .PP
20: If the
21: .I user
22: specified is logged in to the system and the associated terminal has
23: the owner execute bit turned on (by a ``biff y''), the
24: .I offset
25: is used as a seek offset into the appropriate mailbox file and
26: the first 7 lines or 560 characters of the message are printed
27: on the user's terminal. Lines which appear to be part of
28: the message header other than the ``From'', ``To'', ``Date'',
29: or ``Subject'' lines are not included in the displayed message.
30: .SH FILES
31: .DT
32: /etc/utmp to find out who's logged on and on what terminals
33: .SH "SEE ALSO"
34: biff(1)
35: .SH BUGS
36: The message header filtering is prone to error.
37: .PP
38: Users should be notified of mail which arrives on other
39: machines than the one they are currently logged in to.
40: .PP
41: The notification should appear in a separate window so it
42: does not mess up the screen.
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