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Bug#222701: marked as done (apt-utils: apt-extracttemplates fails to parse debs created/modified by ar)

Your message dated Thu, 16 Jan 2025 13:07:32 +0100
with message-id <Z4j2hNmUNwLnYYbp@thunder.hadrons.org>
and subject line Re: Bug#161593: Should support both BSD and SysV ar formats
has caused the Debian Bug report #161593,
regarding apt-utils: apt-extracttemplates fails to parse debs created/modified by ar
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
161593: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=161593
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: apt-utils
Version: 0.5.14.1
Severity: normal
Tags: patch

The specification for the deb format ("man deb" is the best I could
find) say "The file is an ar archive with a magic number of !<arch>".

dpkg-deb uses "filename    " as the filename string in the deb while
ar will use "filename/   ". While dpkg happily accepts both formats
apt-extracttemplates fails to strip the trailing '/' from the
filename. Since dpkg is the authorative implementation
apt-extracttemplates should follow its lead and also support both.

As a sidenote, the reason why this is important is that debsigs
modifies deb archives through ar and ar will add the trailing '/' to
all filenames. The same problem arises when deb files are build
manually with ar.

Attached is a one line patch to support trailing '/'. Please add this
as soon as possible. Until then signed debs and pre-configuring
packages with debconf will conflict.

MfG
	Goswin

-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux dual 2.4.21-ac4 #1 SMP Sat Jul 5 17:53:13 CEST 2003 i686
Locale: LANG=C, LC_CTYPE=de_DE

Versions of packages apt-utils depends on:
ii  apt [libapt-pkg-libc6.3-5-3 0.5.14       Advanced front-end for dpkg
ii  libc6                       2.3.2.ds1-10 GNU C Library: Shared libraries an
ii  libdb2                      2:2.7.7.0-8  The Berkeley database routines (ru
ii  libgcc1                     1:3.3.2-4    GCC support library
ii  libstdc++5                  1:3.3.2-4    The GNU Standard C++ Library v3

-- no debconf information

--- End Message ---
--- Begin Message --- 
Version: 0.7.21

On Wed, 2025-01-15 at 11:54:24 +0100, Chris Hofstaedtler wrote:
> # seems like this is stalled on specification work
> tags 161593 -1 patch
> thanks

This has all been specified in the dpkg deb(5) man page for a very long
time. apt started to support ar members ended with a / in 0.7.21, as
part of bug report #500988, and apt has been marked as being compliant
for a long time in <https://wiki.debian.org/Teams/Dpkg/DebSupport>.

Closing this report.

Thanks,
Guillem

--- End Message ---
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