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From "Stefan Bodewig (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (COMPRESS-182) Support big or even negative numbers in all numeric TAR headers
Date Thu, 01 Mar 2012 11:49:58 GMT
Support big or even negative numbers in all numeric TAR headers
---------------------------------------------------------------

                 Key: COMPRESS-182
                 URL: https://issues.apache.org/jira/browse/COMPRESS-182
             Project: Commons Compress
          Issue Type: Improvement
          Components: Archivers
    Affects Versions: 1.3
            Reporter: Stefan Bodewig
             Fix For: 1.4


This is a superset of the functionality that addressed COMPRESS-175

Jörg Schillig's star and GNU tar may use binary encoding for all numeric fields, PAX/POSIX
also provides them inside the extension headers.

The timestamp field may even contain negative numbers.

IMHO Commons Compress should:

* be able to parse numeric fields using binary encoding (positive and negative)

* fix the current binary parser (see discussion in COMPRESS-16) and add a workaround for broken
writers (see COMPRESS-181

* be able to parse all standard fields of PAX headers, including the numeric ones (I haven't
checked, maybe it already does)

* have an option to write numbers too big/small in binary encoding much like BIGFILE_STAR
does for the file size in trunk

* have an option to write numbers too big/small in PAX headers much like BIGFILE_POSIX does
for the file size in trunk

* replace bigFileMode and the constants with a more generic property that controls all numeric
fields.  We can remove the bigFileMode stuff as it has been added after the 1.3 release.

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