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Date:      Tue, 25 Nov 2008 22:05:27 +0100
From:      Joerg Sonnenberger <joerg@britannica.bec.de>
To:        freebsd-hackers@freebsd.org
Subject:   Re: lzma compression/decompression in bsdtar/libarchive?
Message-ID:  <20081125210526.GB9737@britannica.bec.de>
In-Reply-To: <917783.1650.qm@web39102.mail.mud.yahoo.com>
References:  <917783.1650.qm@web39102.mail.mud.yahoo.com>

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On Tue, Nov 25, 2008 at 10:56:24AM -0800, bf wrote:
> ??  Have you looked at this code?  Yes, there is: there is an "LZMA
> compressed file format" and the 7z file format, both of which support
> LZMA. The former format has been widely adopted by people who distribute
> lzma-compressed tarballs, especially GNU-related projects that use the
> lzmautils port.  Some projects, like GNU coreutils, no longer distribute
> the latest versions of their software in bzip2-compressed tarballs.

lzma files in the current form are a major PITA. The format doesn't have
a proper header and therefore is not really autodetectable.

Joerg



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