Groups > comp.os.linux.development.apps > #416

Display chunks of data

From	Josef Moellers <josef.moellers@ts.fujitsu.com>
Newsgroups	comp.os.linux.development.apps
Subject	Display chunks of data
Date	2012-02-07 11:54 +0100
Organization	Fujitsu Technology Solutions
Message-ID	<jgqvtu$ere$1@nntp.ts.fujitsu.com> (permalink)

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Hi,

I have various chunks of data containing various structures, to be
precise: SCSI LOG pages, which I want to display.
Most are easy, they are structured consisting of tags followed by
lengths followed by single scalar items, mostly counters.
However, some are more structured (e.g. "Protocol-Specific Port log
pages" and "Background Scan Results log pages") and I'm looking for some
generic way to display these using a single function and some
specification how to interpret the raw data.

I was thinking in the ways of mixing plain output with directives that
pick up bits and pieces, sort-of a mixture of printf-style formats and
Perl-style (un)pack directives. Rather than re-inventing the wheel,
maybe someone has already done this or has a lead into the right direction.

At present, I have a table specifying the page and the parameter code
followed by the name of the field and a directive like "4u" causing 4
bytes to be dispalyed as an unsigned integer. More complex items are
specified using "S<n>", causing "special function <n>" to be called.
This is ugly and also inflexible because some pages/parameters differ
between vendors (I already have a small database containing vendor
"quirks", where I could add strings for specific page/parameters).

Any ideas?

Thanks in advanve,

Josef
-- 
These are my personal views and not those of Fujitsu Technology Solutions!
Josef Möllers (Pinguinpfleger bei FTS)
	If failure had no penalty success would not be a prize (T.  Pratchett)
Company Details: http://de.ts.fujitsu.com/imprint.html

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Thread

Display chunks of data Josef Moellers <josef.moellers@ts.fujitsu.com> - 2012-02-07 11:54 +0100
  Re: Display chunks of data Jasen Betts <jasen@xnet.co.nz> - 2012-02-08 10:28 +0000
    Re: Display chunks of data Josef Moellers <josef.moellers@ts.fujitsu.com> - 2012-02-09 13:48 +0100

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