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https://issues.apache.org/jira/browse/COMPRESS-16?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13212741#comment-13212741
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Stefan Bodewig commented on COMPRESS-16:
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Sorry, I saw COMPRESS-177 but am too busy to look into it right now.
The test in TarUtils only checks whether the most significant bit is set, it
doesn't check the actual value of the first byte so 0xFF should be detected as
well. I haven't checked whether the end result is a negative number, though.
> unable to extract a TAR file that contains an entry which is 10 GB in size
> --------------------------------------------------------------------------
>
> Key: COMPRESS-16
> URL: https://issues.apache.org/jira/browse/COMPRESS-16
> Project: Commons Compress
> Issue Type: Bug
> Components: Archivers
> Environment: I am using win xp sp3, but this should be platform
> independent.
> Reporter: Sam Smith
> Fix For: 1.4
>
> Attachments:
> 0001-Accept-GNU-tar-files-with-entries-over-8GB-in-size.patch,
> 0002-Allow-creating-tar-archives-with-files-over-8GB.patch,
> 0004-Prefer-octal-over-binary-size-representation.patch, ant-8GB-tar.patch,
> patch-for-compress.txt
>
>
> I made a TAR file which contains a file entry where the file is 10 GB in size.
> When I attempt to extract the file using TarInputStream, it fails with the
> following stack trace:
> java.io.IOException: unexpected EOF with 24064 bytes unread
> at
> org.apache.commons.compress.archivers.tar.TarInputStream.read(TarInputStream.java:348)
> at
> org.apache.commons.compress.archivers.tar.TarInputStream.copyEntryContents(TarInputStream.java:388)
> So, TarInputStream does not seem to support large (> 8 GB?) files.
> Here is something else to note: I created that TAR file using TarOutputStream
> , which did not complain when asked to write a 10 GB file into the TAR file,
> so I assume that TarOutputStream has no file size limits? That, or does it
> silently create corrupted TAR files (which would be the worst situation of
> all...)?
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