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https://issues.apache.org/jira/browse/COMPRESS-140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13068386#comment-13068386
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Stefan Bodewig commented on COMPRESS-140:
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http://www.freebsd.org/cgi/man.cgi?query=ar&sektion=5 is the best I can find
and at least it says unused fields will be filled with blanks.
I'm not sure whether returning 0 in this case is a good choice but intend to
address user/group ids across all ArchiveEntry classes in a way that can answer
"I don't know" anyway in the context of COMPRESS-136 so an interim solution
that returns 0 now may be OK, even if it leads to duplicate code.
> Support blank uid/gid fields
> -----------------------------
>
> Key: COMPRESS-140
> URL: https://issues.apache.org/jira/browse/COMPRESS-140
> Project: Commons Compress
> Issue Type: Improvement
> Components: Archivers
> Affects Versions: 1.1
> Reporter: Trejkaz
> Labels: patch
> Attachments: COMPRESS-140.patch, jpl.lib.bz2
>
>
> I have found an ar file (it happens to be a .lib file) which has 6 ASCII
> spaces for both the UID and GID fields.
> This goes through {{ArArchiveInputStream.asInt}} which throws a
> NumberFormatException.
> I'm not sure what the correct behaviour is, but the 'ar' utility I have on
> hand shows 0/0 for uid/gid for the same file.
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