> From [EMAIL PROTECTED] Mon Jun 26 02:30:05 2000
> Subject: Re: LPRng: Broken accounting in latest version
> To: [EMAIL PROTECTED]
> Date: Mon, 26 Jun 2000 09:12:50 +0100 (BST)
> From: Jonathan Knight <[EMAIL PROTECTED]>
>
> > Yes. The problem here is that some filters INSISTED on an AF file
> > and they broke hard, big time. I spent 2 weeks working on this stuff
> > before I gave up.
>
>
> Let me get this straight:
>
> 1. AF can no longer be a filter, it can only be a file or host%port
Yes.
> 2. AS can be a filter and uses an exit status to say yes or no to printing
Yes. format:
as=start $P ... this is a message for printing to the
as=|/bin/path start this is a filter
> 3. AE can be a filter but only gets the accounting end bit from LPRng
Yes.
as=start $P ... this is a message for printing to the
as=|/bin/path start this is a filter
> 4. The OF and IF filter get a file (if anything) on file descriptor 3 never
> the AS or AE filters.
Yes.
> 5. ifhp can run a filter as its accounting and will get the log lines.
> The filter is opened once per log line.
Yes.
>
>
> Can I use the ifhp accounting filter to abort a job? I'm wondering
> whether that's the place to do the following:
Yes.
>
> 1. If the student is over quota then generate an "over quota" sheet
> on the printer and abort their job.
Actually, you would probably want to 'JREMOVE' their file
> 2. If the student is under quota then printer a banner with their quota
> on it and then print their job
You would do this by using a combination of the accounting and
banner printing program. This is how I do it:
:as= program
#!/bin/sh
... code to check status, etc...
# now generate the banner you want for the job
cat <<EOF >banner.for.job
....
EOF
:bp= program
#!/bin/sh
if [ -f banner.for.job ] ; then
cat banner.for.job;
fi;
rm banner.for.job
> 3. At the end of the job update the databases.
Yes, exactly so.
>
> I wasn't able to do this before because the AF filter didn't have access to
> the printer, but maybe that isn't true for the ifhp acounting script?
You read the accouting file to get the last printer accounting information.
Note: be ready to deal with jobs that have caused the printer to totally
lock up and cause the :of filter to abandon all attempts to get the accounting
information - this has happened. Usually you need to power the printer on
and off.
>
>
> --
> ______ Internet :[EMAIL PROTECTED] Jonathan Knight,
> / Department of Computer Science
> / _ __ Telephone : +44 1782 583437 University of Keele, Keele,
> (_/ (_) / / Fax : +44 1782 713082 Staffordshire. ST5 5BG. U.K.
>
Patrick Powell Astart Technologies,
[EMAIL PROTECTED] 9475 Chesapeake Drive, Suite D,
Network and System San Diego, CA 92123
Consulting 858-874-6543 FAX 858-279-8424
LPRng - Print Spooler (http://www.astart.com)
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