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Bug#630078: unzip fails to uncompress mcafee dat file - linking avvclean instead of extracting

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Werner Opriel

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Jun 10, 2011, 12:30:02 PM6/10/11
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Package: unzip
Version: 6.0-4
Severity: normal
Tags: squeeze

-- System Information:
Debian Release: 6.0.1
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686-bigmem (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages unzip depends on:
ii libbz2-1.0 1.0.5-6 high-quality block-sorting file co
ii libc6 2.11.2-10 Embedded GNU C Library: Shared lib

unzip recommends no packages.

Versions of packages unzip suggests:
ii zip 3.0-3 Archiver for .zip files

-- no debconf information

unzip fails to extract the mcafee archive dat file from 09.06.2011 avvdat-6372.zip.
Instead of extracting avvclean.dat it has done linking to a copright annotation mark.
I've had no problems to extract this file with unzip under lenny and sarge, also 7z on Squeeze had done the extraction without any problems.
The mcafee datfiles are updated daily and this problem has occurred for the first time several weeks ago. In the meantime i've had no problems until avvdat-6372.zip yesterday.

I've verified this behavior on 3 different machines running debian squeeze.

---
unzip avvdat-6372.zip
Archive: avvdat-6372.zip
inflating: legal.txt
linking: avvclean.dat -> Copyright (c) McAfee DAT file^Z^A
extracting: avvnames.dat
extracting: avvscan.dat
finishing deferred symbolic links:
avvclean.dat -> Copyright (c) McAfee DAT file^Z^A
---
ls -ali
20840463 lrwxrwxrwx 1 tux tux 31 10. Jun 17:51 avvclean.dat -> Copyright (c) McAfee DAT file??
20840461 -rw-r--r-- 1 tux tux 113087235 10. Jun 15:29 avvdat-6372.zip
20840464 -rw-r--r-- 1 tux tux 427385 9. Jun 06:40 avvnames.dat
20840465 -rw-rwxr-- 1 tux tux 112078686 9. Jun 06:40 avvscan.dat
20840462 -rw-r--r-- 1 tux tux 8689 9. Jun 06:40 legal.txt
---
7z e avvdat-6372.zip

7-Zip 9.04 beta Copyright (c) 1999-2009 Igor Pavlov 2009-05-30
p7zip Version 9.04 (locale=de_DE.UTF-8,Utf16=on,HugeFiles=on,2 CPUs)

Processing archive: avvdat-6372.zip

Extracting legal.txt
Extracting avvclean.dat
Extracting avvnames.dat
Extracting avvscan.dat

Everything is Ok

Files: 4
Size: 113091921
Compressed: 113087235
--
ls -ali
20840463 -rw-r--r-- 1 tux tux 577161 9. Jun 06:40 avvclean.dat
20840461 -rw-r--r-- 1 tux tux 113087235 10. Jun 15:29 avvdat-6372.zip
20840464 -rw-r--r-- 1 tux tux 427385 9. Jun 06:40 avvnames.dat
20840465 -rw-r--r-- 1 tux tux 112078686 9. Jun 06:40 avvscan.dat
20840462 -rw-r--r-- 1 tux tux 8689 9. Jun 06:40 legal.txt
--

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Santiago Vila

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Jun 15, 2011, 6:50:01 AM6/15/11
to
On Fri, 10 Jun 2011, Werner Opriel wrote:

> Package: unzip
> Version: 6.0-4
> Severity: normal
> Tags: squeeze
>

> [...]


> unzip fails to extract the mcafee archive dat file from 09.06.2011
> avvdat-6372.zip.

You forgot to provide a test case, but I found the file here:

http://ftp44.njstar.net/univie/zid/antivirus/CommonUpdater.old/

I can reproduce the described behaviour.

The same thing happens with unzip610a (beta release), but unzip610b
seems to work.

I'll forward this upstream.

Thanks.

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