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[Lzip-bug] Xlunzip 0.9 released


From: Antonio Diaz Diaz
Subject: [Lzip-bug] Xlunzip 0.9 released
Date: Sun, 12 Jan 2025 18:52:36 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14

I am pleased to announce the release of xlunzip 0.9.

Xlunzip is a test tool for the lzip decompression code of my lzip patch for linux. Xlunzip is similar to lunzip, but it uses the lzip_decompress linux module as a backend. Xlunzip tests the module for stream, buffer-to-buffer, and mixed decompression modes, including in-place decompression (using the same buffer for input and output). You can use xlunzip to check that the module produces correct results when decompressing single member files, multimember files, or the concatenation of two or more compressed files. Xlunzip can be used with unzcrash to test the robustness of the module to the decompression of corrupted data.

The distributed index feature of the lzip format allows xlunzip to decompress concatenated files in place. This can't be guaranteed to work with formats like gzip or bzip2 because they can't detect whether a high compression ratio in the first members of the multimember data is being masked by a low compression ratio in the last members.

The xlunzip tarball contains a copy of the lzip_decompress module and can be compiled and tested without downloading or applying the patch to the kernel.

The homepage is at http://www.nongnu.org/lzip/xlunzip.html

The sources can be downloaded from http://download.savannah.gnu.org/releases/lzip/xlunzip/

The sha256sum is:
0857a229b0de0abc3f0d43127901e1dbe95f9ab32515d6de18526cf833fec575 xlunzip-0.9.tar.lz

The lzip patch for linux can be found at http://download.savannah.gnu.org/releases/lzip/kernel/

Changes in version 0.9:

* xlunzip now exits with error status 2 if any empty member is found in a multimember file.

* xlunzip now exits with error status 2 if the first byte of the LZMA stream is not 0.


Please send bug reports and suggestions to lzip-bug@nongnu.org


Regards,
Antonio Diaz, xlunzip author and maintainer.

--
If you know someone who is using gzip, bzip2, or xz, please tell him/her about the advantages of switching to lzip. See
http://www.nongnu.org/lzip/manual/lzip_manual.html#Quality-assurance and
http://www.nongnu.org/lzip/lzip_benchmark.html Thanks




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