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[Lzip-bug] Lzlib 1.10 released

From: Antonio Diaz Diaz
Subject: [Lzip-bug] Lzlib 1.10 released
Date: Mon, 12 Feb 2018 16:56:10 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv: Gecko/20110420 SeaMonkey/2.0.14

I am pleased to announce the release of lzlib 1.10.

Lzlib is a compression library providing in-memory LZMA compression and decompression functions, including integrity checking of the decompressed data. The compressed data format used by lzlib is the lzip format. Lzlib is written in C. Lzlib is free software distributed under a 2-clause BSD license.

Compression/decompression is done by repeatedly calling a couple of read/write functions until all the data have been processed by the library. This interface is safer and less error prone than the traditional zlib interface.

The lzip file format is designed for data sharing and long-term archiving, taking into account both data integrity and decoder availability.

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

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

The sha256sums are:
cc1e89b62886f683bb9f1a9bc1383b0d95df5c849d8fc755aff10105268bf6d0 lzlib-1.10.tar.lz 1d6ab7800a5b43e56fd20607fd2cfda9e550350dc95f5beb6a4ce14f85b41043 lzlib-1.10.tar.gz

This release is also GPG signed. You can download the signature by appending '.sig' to the URL. If the 'gpg --verify' command fails because you don't have the required public key, then run this command to import it:

  gpg --keyserver keys.gnupg.net --recv-keys 8FE99503132D7742

Key fingerprint = 1D41 C14B 272A 2219 A739  FA4F 8FE9 9503 132D 7742

Changes in version 1.10:

* The function 'LZ_compress_finish' now adjusts the dictionary size for each member.

  * The option '--loose-trailing', has been added to minilzip.

* The test used by lzlib to discriminate trailing data from a corrupt header in multimember or concatenated files has been improved to a Hamming distance (HD) of 3, and the 3 bit flips must happen in different magic bytes for the test to fail. As a consequence, lzlib now returns a data error when some kinds of files are appended to a lzip file as trailing data. The '--loose-trailing' option of minilzip can be used to ignore such trailing data when decompressing.
Lziprecover can be used to remove conflicting trailing data from a file.

  * Option '-S, --volume-size' of minilzip now keeps input files unchanged.

* The 'bits/byte' ratio has been replaced with the inverse compression ratio in the output of minilzip.

* minilzip now shows a final diagnostic at verbosity level 1 (-v) or higher if any file fails the test when testing multiple files.

* minilzip no longer adds a second '.lz' extension to the argument of '-o' if it already ends in '.lz' or '.tlz'.

* minilzip now shows the dictionary size at verbosity level 4 (-vvvv) when decompressing or testing.

  * The new chapter 'Invoking minilzip' has been added to the manual.

Please send bug reports and suggestions to address@hidden

Antonio Diaz, lzlib author and maintainer.

If you are distributing software in xz format, please consider using lzip instead. See http://www.nongnu.org/lzip/lzip_benchmark.html#xz1 and http://www.nongnu.org/lzip/xz_inadequate.html

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