Manual Reference Pages - SYSLOGSCAN::DELIVERYITERATOR (3)
SyslogScan::DeliveryIterator -- scans a syslog file for "deliveries",
successful transfers of mail to mailboxes or to other machines.
my $iter = new SyslogScan::DeliveryIterator(syslogList =>
while ($delivery = $iter -> next())
print $delivery -> summary();
A DeliveryIterator goes through your sendmail logging file (which may
be /var/log/syslog, /var/adm/messages, or something completely
different) looking for successful deliveries of mail to local
user-accounts or successful transfers of mail to remote machines.
Here is an excerpt from a sample syslog:
Jun 13 01:50:16 satellife sendmail: DAA29556: from=<email@example.com>, size=954, class=0, pri=30954, nrcpts=1, msgid=<5B013544E0D@fs1.ho.man.ac.uk>, proto=ESMTP, relay=curlew.cs.man.ac.uk [184.108.40.206]
Jun 13 01:50:17 satellife sendmail: DAA29556: to=<firstname.lastname@example.org>, delay=00:00:05, mailer=fidogate, stat=Deferred (Remote host is busy)
Jun 13 14:55:50 satellife sendmail: DAA29556: to=<email@example.com>, delay=13:00:05, mailer=fidogate, stat=Sent
The delivery is not registered until 14:55:50. In order to figure out
the size and sender, the iterator needs to have gone over the from
entry associated with message DAA29566, otherwise it will return a
delivery with Sender and Size set to an undefined value (unless
you specified defaults when constructing your DeliveryIterator.)
new creates a new iterator.
my $iter =
new SyslogScan::DeliveryIterator(startDate => "06.01.96 18:00:00",
endDate => "06.02.96 06:00:00",
unknownSender => antiquity,
unknownSize => 0,
defaultYear => 1996);
All of the above parameters are optional.
startDate and endDate define a span of time; we ignore
deliveries that fall before startDate or after endDate. This
allows you to generate statistical reports about mail delivered over a
given span of time.
syslogList is a list of files to search through for deliveries.
The alternative to specifying syslogList is to supply a file-handle to
a syslog file on each call to the next() method.
unknownSender and unknownSize are what to specify as the sender
and the size if we cannot determine from the logs who sent the message
and how large the message is.
defaultYear is the year in which the deliveries are assumed to have
taken place (this is not specified in the syslog file.) Default is to
guess the year that makes the delivery take place close to now. (For
example, if now is February 3rd 1996, then by default a delivery
made on December 14th is assumed to be in 1995, and a delivery made on
February 4th is assumed to be in 1996.
defaultYear is deprecated, set the default year instead
Once an iterator is defined, the next() method will search for the
next delivery, skipping any deliveries which dont match the time
constraints of startDate and endDate. There are two ways to
# poll syslogList members
$delivery = $iter -> next;
# poll filehandle
$delivery = $iter -> next(\*LOG);
The appendSyslog method can add a syslog filename to the list
of syslog filenames which were specified at construction time
Setting the global variable $::gbQuiet to 1 will suppress some
of the error messages to STDERR.
If two messages have the same message ID through a bad coincidence, a
message is produced with sender of duplicate and size of 0 rather
than using the unknownSender and unknownSize parameters.
Sender and receiver address are downcased automatically. It would
probably be better if this module downcased only the host-name part of
the address and not the user-name.
Some mailings have a ctladdr field; DeliveryIterator should probably
try to parse this as a backup clue for figuring out the sender.
AUTHOR and COPYRIGHT
The author (Rolf Harold Nelson) can currently be e-mailed as
This code is Copyright (C) SatelLife, Inc. 1996. All rights reserved.
This code is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
In no event shall SatelLife be liable to any party for direct,
indirect, special, incidental, or consequential damages arising out of
the use of this software and its documentation (including, but not
limited to, lost profits) even if the authors have been advised of the
possibility of such damage.
|perl v5.20.3 ||SYSLOGSCAN::DELIVERYITERATOR (3) ||1997-01-29 |
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