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Posted to issues@commons.apache.org by "John Kodis (Updated) (JIRA)" <ji...@apache.org> on 2011/12/03 18:00:41 UTC

[jira] [Updated] (COMPRESS-163) Unable to extract a file larger than 8GB from a Posix-format tar archive

     [ https://issues.apache.org/jira/browse/COMPRESS-163?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

John Kodis updated COMPRESS-163:
--------------------------------

    Attachment: 0003-Allow-reading-large-files-from-Posix-tar-archives.patch

An attempt to read a posix-format tar archive containing a file in excess of 8^11 bytes in size will fail with a "Size out of range" illegal argument exception.  We correct this by dropping the test for a too-large value in the TarArchiveEntry.setSize method, and making the corresponding modifications to the testMaxFileSize() junit test.

Finally, in the getNextTarEntry method, we set the entrySize instance variable an additional time to pick up any larger size that may have been obtained as a result of processing any Posix Pax headers.

                
> Unable to extract a file larger than 8GB from a Posix-format tar archive
> ------------------------------------------------------------------------
>
>                 Key: COMPRESS-163
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-163
>             Project: Commons Compress
>          Issue Type: Bug
>          Components: Compressors
>    Affects Versions: 1.3
>         Environment: The tar archive used for testing was created by GNU tar, but the problem will occur with any Posix-formatted tar file containing files over 8GB in size.
>            Reporter: John Kodis
>            Priority: Minor
>             Fix For: 1.3
>
>         Attachments: 0003-Allow-reading-large-files-from-Posix-tar-archives.patch
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> An attempt to read a posix-format tar archive containing a file in excess of 8^11 bytes in size will fail with a "Size out of range" illegal argument exception.

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