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Posted to issues@commons.apache.org by "Stefan Bodewig (JIRA)" <ji...@apache.org> on 2016/03/22 18:17:25 UTC

[jira] [Resolved] (COMPRESS-344) Handle NULL terminated GNU AR extended name

     [ https://issues.apache.org/jira/browse/COMPRESS-344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Bodewig resolved COMPRESS-344.
-------------------------------------
       Resolution: Fixed
    Fix Version/s: 1.11

How do you always find these edge cases :-)

should be fixed with git commit a5eca56

Thanks a lot.

> Handle NULL terminated GNU AR extended name
> -------------------------------------------
>
>                 Key: COMPRESS-344
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-344
>             Project: Commons Compress
>          Issue Type: Bug
>          Components: Archivers
>    Affects Versions: 1.10
>            Reporter: Jeremy Gustie
>             Fix For: 1.11
>
>
> We have an AR archive (a .lib file) whose extended name is terminated by a NULL instead of a line feed which causes an {{IOException}} ("Failed to read entry: 0"). It looks like {{ArArchiveInputStream.getExtendedName}} just needs to check {{namebuffer\[i\]}} for {{'\012'}} _or_ 0.
> The ar tool in latest GNU binutils seems to be able to handle this.
> I don't know what to make of the archive itself: it seems to contain 291 different copies of a file with the same name; but it is a Windows lib file and I am not going to pretend like I understand if this is supposed to be normal or not.
> The file in question is part of the [SIGAR|https://support.hyperic.com/display/SIGAR/Home] project, the {{sigar-bin/lib/sigar-x86-winnt.lib}} archive from the [1.6.3 distribution|https://sourceforge.net/projects/sigar/files/sigar/1.6/hyperic-sigar-1.6.3.tar.gz/download] exhibits this behavior. The NULL terminated string only appears in the first file, all subsequent files seem to use the expected line feed terminator.



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