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1 perry 1 ----
2 __NAME__
3
4
5 comsat - biff server
6 __SYNOPSIS__
7
8
9 comsat
10 __DESCRIPTION__
11
12
13 Comsat is the server process which receives reports of
14 incoming mail and notifies users if they have requested this
15 service. Comsat receives messages on a datagram port asso-
16 ciated with the ``biff'' service specification (see
17 services(5) and inetd(8)). The one line
18 messages are of the form:
19
20
21 user@mailbox-offset
22
23
24 If the ''user'' specified is logged in to the system and
25 the associated terminal has the owner execute bit turned on
26 (by a ``biff y''), the ''offset'' is used as a
27 seek offset into the appropriate mailbox file and the first
28 7 lines or 560 char- acters of the message are printed on
29 the user's terminal. Lines which appear to be part of the
30 message header other than the ``From'' or ``Subject'' lines
31 are not included in the output.
32 __FILES__
33 /var/run/utmp
34
35
36 to find out who's logged on and on what termi-
37 nals
38
39
40 __SEE ALSO__
41
42
43 biff(1), inetd(8)
44 __BUGS__
45
46
47 The message header filtering is prone to error. The density
48 of the information presented is near the theoretical mini-
49 mum.
50
51
52 Users should be notified of mail which arrives on other machines than the one to which they are currently logged in.
53
54
55 The notification should appear in a separate window so it
56 does not mess up the screen.
57
58
59 Please report bugs to netbug@ftp.uk.linux.org and include
60 diffs/patches, compiler error logs or as complete a bug
61 report as you are able.
62 __HISTORY__
63
64
65 The comsat daemon appeared in 4.2 BSD
66 .
67
68
69 Linux !NetKit (0.17-pre-20000412)July 31, 1999
70 ----
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