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Description of problem:

on RHEL6 file -z cannot extract bzip2 archives when using -z option

file-5.04-6.el6.x86_64
$ file -z gfs1partition.bz2 
gfs1partition.bz2: data (bzip2 compressed data, block size = 900k)

this is working on RHEL5:

file-4.17-20
:: [   PASS   ] :: Running 'file -z gfs1partition.bz2 &> log1'
gfs1partition.bz2: Linux GFS1 Filesystem (blocksize 4096, lockproto lock_nolock) (bzip2 compressed data, block size = 900k)

also tested with file-5.04-11.el6 and file-5.04-13.el6, still not working.

It's bug file-5.x branch caused by addition of built-in zlib decompressing support.

Created attachment 602653 [details]
proposed patch

Upstream bug report: http://bugs.gw.com/view.php?id=192

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
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    New Contents:
Cause: Because of bad condition in File code, File used read timeout when decompressing files using file -z parameter.
Consequence: File was not able to detect files compressed by bzip2.
Fix: Bad condition has been fixed and file now doesn't use timeout when decompressing compressed files.
Result: File now detects compressed file when using -z parameter as expected.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-1339.html