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

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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#38766: closed (bug: "gzip -l" truncates reported decompressed
 size to 32 bits)
Date: Thu, 16 Dec 2021 02:34:02 +0000

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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 bug: "gzip -l" truncates reported decompressed size to 32 bits
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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17804: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17804
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Contact help-debbugs <at> gnu.org with problems

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From: Jason Mancini <jayrusman <at> hotmail.com>
To: "bug-gzip <at> gnu.org" <bug-gzip <at> gnu.org>
Subject: bug: "gzip -l" truncates reported decompressed size to 32 bits
Date: Fri, 27 Dec 2019 20:35:13 +0000

As title states.

openSUSE Tumbleweed 20191216 (x86_64)
gzip 1.10

(Number delimiters manually added for clarity below.)

# zcat backup.bin.gz | wc -c
67,645,849,600
# gzip -l backup.bin.gz
compressed        uncompressed  ratio uncompressed_name
9,458,450,396    3,221,340,160 -193.6% backup.bin
#

67,645,849,600 => 0xf_c001_c000 => truncate => 0xc001_c000 => 3,221,340,160

Thanks!
Jason Mancini

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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.

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