bug#68329: closed ('--list' fails on multimember files)

[GNU bug Tracking System]

Your message dated Mon, 8 Jan 2024 20:42:42 -0800
with message-id <f24cbfd0-e7c0-43b1-849f-dd38df43c403@cs.ucla.edu>
and subject line Re: bug#68329: '--list' fails on multimember files
has caused the debbugs.gnu.org bug report #68329,
regarding '--list' fails on multimember files
to be marked as done.

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68329: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=68329
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> --- Begin Message ---
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>
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> Subject: 
>
> '--list' fails on multimember files
>
>
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> Date: 
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> Mon, 08 Jan 2024 18:06:39 +0100
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> User-agent: 
>
> Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14
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>
>
>
> Dear Paul and Jim,
>
> I have noticed that the new method of implementing --list prints incorrect 
> values for multimember files. It decompresses the whole file, but just 
> counts the uncompressed size of the last member (as it did gzip <= 1.11 by 
> reading the ISIZE field). You can reproduce the problem by concatenating two 
> copies of the gzip-1.13 tarball:
>
> $ gzip -l 2xgzip-1.13.tar.gz
>          compressed        uncompressed  ratio uncompressed_name
>             2588316             6205440  58.3% 2xgzip-1.13.tar
>
> $ gzip -cd 2xgzip-1.13.tar.gz | wc -c
> 12410880
>
> I think the problem is that bytes_out is set to zero in lines 791 and 998 of 
> gzip.c so that member length can be checked, but the cumulative value of 
> bytes_out is not saved for later, when the total uncompressed size of the 
> file is displayed by do_list and then added to total_out.
>
> Thanks,
> Antonio.
>
>
>
> --- End Message ---

--- Begin Message --- Subject: Re: bug#68329: '--list' fails on multimember files Date: Mon, 8 Jan 2024 20:42:42 -0800 User-agent: Mozilla Thunderbird Thanks for reporting and diagnosing that gzip bug. I installed the attached patch to fix it, and to add a regression test.

0001-gzip-fix-l-bug-with-multimember-files.patch
Description: Text Data

--- End Message ---