• ANNOUNCE: DJGPP port of bzip2 1.0.8 uploaded.

    From [via djgpp-announce@delorie.com]" <@21:1/5 to All on Sun Apr 19 13:48:21 2020
    This is a port of bzip2 1.0.8 to MSDOS/DJGPP.

    bzip2 is a compressor/decompressor program with generally considerably better
    compression rate than that achieved by more conventional LZ77/LZ78-based
    The command-line options are deliberately very similar to those of GNU gzip,
    but they are not identical.

    DJGPP specific changes.

    - The source archives that have been used to create this port can be
    downloaded as:

    - There are no user visible DJGPP specific changes compared with the
    previous version. If you are familiar with the previous version 1.0.6,
    you will be familiar with this one.

    - The port has been tested by using it. I have used them only on WinXP,
    Win2K, Win98SE, MS-DOS 7.10 and MS-DOS 6.22. It has worked flawlessly.
    I do not konw if this will ever be the case on FreeDOS. I have never
    used/tested them in that environment.

    - The port has been configured and compiled on MS-DOS 6.22, MS-DOS 7.10,
    Win98SE and WinXP SP3. There is no guarantee that this may be possible
    with any other DOS-like OS. Due to the use of long file names it will
    not be possible to configure and compile without LFN support. The port
    has been compiled using gcc346 and bnu234b.

    As usual, all djgpp specific files (diffs, README files, etc.) are stored
    in the "djgpp" directory. The sources do not need to be configured and
    must be build in the top source directory.

    For further information about bzip2 please read the info docs and NEWS file.

    Here is an extract of the ChangeLog file showing the user visible changes
    from the last port (bzip2 1.0.6) to this one:


    1.0.7 (27 Jun 19)

    * Fix undefined behavior in the macros SET_BH, CLEAR_BH, & ISSET_BH

    * bzip2: Fix return value when combining --test,-t and -q.

    * bzip2recover: Fix buffer overflow for large argv[0]

    * bzip2recover: Fix use after free issue with outFile (CVE-2016-3189)

    * Make sure nSelectors is not out of range (CVE-2019-12900)

    1.0.8 (13 Jul 19)

    * Accept as many selectors as the file format allows.
    This relaxes the fix for CVE-2019-12900 from 1.0.7
    so that bzip2 allows decompression of bz2 files that
    use (too) many selectors again.

    * Fix handling of large (> 4GB) files on Windows.

    * Cleanup of bzdiff and bzgrep scripts so they don't use
    any bash extensions and handle multiple archives correctly.

    * There is now a bz2-files testsuite at


    For futher information about bzip2 please read the man pages. The man
    pages are the only ones that contain DJGPP specific information because
    they are the only one that can be remade with existing DJGPP tools. The
    author no longer uses the texinfo format; he has switched to xml and it
    is not possible to recreate pdf, ps and html formated documentation from
    the distributed xml file. Neitherless the original pdf, ps and html
    formated documentattion is supplied in the bz2-108d.zip archive.

    To run the scripts bzmore, bzdiff and bzgrep you will have to install the
    following DJGPP ports: difNNNb.zip, grepNNNb.zip, mktmpNNNb.zip and

    The port consists of the usual four packages that have been produced using
    djdev205 (CVS repository code) and can be downloaded from ftp.delorie.com
    and mirrors as (time stamp 2020-04-18):

    bzip2 1.0.8 binaries, script and man formated documentation:

    bzip2 1.0 .8header and library:

    bzip2 1.0.8 html, ps and pdf formated documentation:

    bzip2 1.0.8 source:

    Send bzip2 specific bug reports to <bzip2-devel@sourceware.org>.
    Send suggestions and bug reports concerning the DJGPP port to
    comp.os.msdos.djgpp or <djgpp@delorie.com>.


    Guerrero, Juan Manuel <juan.guerrero@gmx.de>

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