Bug 91778

Summary: "gzip -l" reports incorrect uncompressed size on files > 4gb
Product: [Retired] Red Hat Linux Reporter: Steve Bonds <ij2fdc402>
Component: gzipAssignee: Jeff Johnson <jbj>
Status: CLOSED ERRATA QA Contact: Ben Levenson <benl>
Severity: low Docs Contact:
Priority: medium    
Version: 7.3Keywords: Reopened
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Hardware: i386   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2016-05-07 11:59:58 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Steve Bonds 2003-05-28 00:57:41 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3) Gecko/20030314

Description of problem:
When running "gzip -l" on files larger than 4gb, the reported size is the actual
size minus 4gb.  (I didn't test on files > 8gb.)  The files are correct and
valid, but the reported uncompressed size is wrong.

Version-Release number of selected component (if applicable):
gzip-1.3.3-1

How reproducible:
Always

Steps to Reproduce:
1. Create a file larger than 4gb (i.e. dd bs=1024M if=/dev/null seek=5
of=/tmp/sparse.bin)
2. Compress it (i.e. gzip --fast -c /tmp/sparse.bin > /tmp/sparse.bin.gz)
3. Run "gzip -l" on the file (i.e. "gzip -l /tmp/sparse.bin.gz")
    

Actual Results:  "gzip -l /tmp/sparse.bin.gz" reports:

         compressed        uncompressed  ratio uncompressed_name
           23418688          1073741824  97.8% sparse.bin


Expected Results:  "gzip -l /tmp/sparse.bin.gz" should have reported:

         compressed        uncompressed  ratio uncompressed_name
           23418688          5368709120  99.6% sparse.bin


Additional info:

Comment 1 Steve Bonds 2003-05-28 15:11:58 UTC
I just received this message from the author:

-----
This is due to an unfortunate limitation of the gzip 1.x file format:
the uncompressed size is stored on 4 bytes only. This will be fixed
in a future version of gzip.

Jean-loup
-----


Comment 2 Fedora Update System 2016-04-22 05:07:26 UTC
libreoffice-5.1.3.1-1.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-416f593172

Comment 3 Fedora Update System 2016-04-23 21:23:40 UTC
libreoffice-5.1.3.1-1.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-416f593172

Comment 4 Fedora Update System 2016-05-07 11:59:56 UTC
libreoffice-5.1.3.1-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.