GNU bug report logs - #17804
RFC: fixing the 32-bit size and time limits in gzip file format

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Package: gzip;

Reported by: Petr Stodůlka <pstodulk <at> redhat.com>

Date: Wed, 18 Jun 2014 16:54:01 UTC

Severity: normal

Merged with 29089, 30935, 30936, 38766, 42965, 48424, 52227

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#29089: closed (Truncated size of big file)
Date: Thu, 16 Dec 2021 02:34:02 +0000

[Message part 1 (text/plain, inline)]
Your message dated Wed, 15 Dec 2021 18:33:12 -0800
with message-id <b546014b-f19b-8025-cd7b-2266676b41d9 <at> cs.ucla.edu>
and subject line Re: bug#17804: RFC: fixing the 32-bit size and time limits in gzip file format
has caused the debbugs.gnu.org bug report #17804,
regarding Truncated size of big file
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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[Message part 2 (message/rfc822, inline)]
From: Alex Peshkoff <peshkoff <at> mail.ru>
To: bug-gzip <at> gnu.org
Subject: Truncated size of big file
Date: Tue, 31 Oct 2017 20:59:33 +0300

Before decompressing a copy of database I've decided to take a look at 
it's size:

localhost stg # gunzip -l SWHTOROLT_20171019.GBK.gz
         compressed        uncompressed  ratio uncompressed_name
         3645968323          1782666240 -104.5% SWHTOROLT_20171019.GBK

uncompressed is reported as 1.7Gb which is definitely something unreal 
like -104.5 compress ratio

Actual size after unzip is:

localhost stg # gunzip SWHTOROLT_20171019.GBK.gz
localhost stg # ls -l SWHTOROLT_20171019.GBK
-rw-r--r-- 1 root root 18962535424 Oct 19 15:59 SWHTOROLT_20171019.GBK

Lickily I've had enough disk space - but let me not attach problematic 
archive to email, I suppose it's easier to reproduce this locally ;)

Alex.





[Message part 3 (message/rfc822, inline)]
From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Petr Stodůlka <pstodulk <at> redhat.com>
Cc: 17804-done <at> debbugs.gnu.org
Subject: Re: bug#17804: RFC: fixing the 32-bit size and time limits in gzip
 file format
Date: Wed, 15 Dec 2021 18:33:12 -0800

On 6/18/14 15:12, Paul Eggert wrote:
> One simple way forward would be to implement what pigz -tl does, namely, 
> decompress the input stream and discard the output, but print its size.

I finally got around to implementing that suggestion:

https://git.savannah.gnu.org/cgit/gzip.git/commit/?id=cf26200380585019e927fe3cf5c0ecb7c8b3ef14
https://git.savannah.gnu.org/cgit/gzip.git/commit/?id=32fef43b442c7abc70414863d64718cd06f6477a

So I am closing this old bug report.
This bug report was last modified 3 years and 155 days ago.

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