From owner-freebsd-hackers@FreeBSD.ORG Tue Nov 25 22:30:04 2008 Return-Path: Delivered-To: freebsd-hackers@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C2EAB1065673 for ; Tue, 25 Nov 2008 22:30:04 +0000 (UTC) (envelope-from bf2006a@yahoo.com) Received: from web39102.mail.mud.yahoo.com (web39102.mail.mud.yahoo.com [209.191.86.253]) by mx1.freebsd.org (Postfix) with SMTP id 76CF68FC1B for ; Tue, 25 Nov 2008 22:30:04 +0000 (UTC) (envelope-from bf2006a@yahoo.com) Received: (qmail 46979 invoked by uid 60001); 25 Nov 2008 22:30:03 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type:Message-ID; b=2GCGoj3WF6M6J7kekXT9ZSpgVHXzoz2I7bUkC/6MlFPSGRWDaEVTFhA9aFfB+qnfd6Iu/CoqkoxLuMUSq7tIFbe/G0LDdsa16RmdjdFBp9RuIK3q+3TKyYqczK0qZGQDBx/5yBLwsLhha33HWiGFxVGwh9zjpvQh9ZR/uq1+i7Y=; X-YMail-OSG: Uyoyq.UVM1mt68tO.ePemkZ5TqY1rSUjxMujmJCajzk4moO3joY_QmErTrtDpvG1U_Zt5Dz64flAnN4k5KL49DqtqxBZIEW_jMpLD5CIw65rr.vmRG_iNl3ykGy.L3Yqxg_6Ng-- Received: from [203.218.97.181] by web39102.mail.mud.yahoo.com via HTTP; Tue, 25 Nov 2008 14:30:03 PST X-Mailer: YahooMailWebService/0.7.260.1 Date: Tue, 25 Nov 2008 14:30:03 -0800 (PST) From: bf To: joerg@britannica.bec.de, freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <511182.46413.qm@web39102.mail.mud.yahoo.com> X-Mailman-Approved-At: Tue, 25 Nov 2008 22:56:25 +0000 Cc: Subject: Re: lzma compression/decompression in bsdtar/libarchive? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bf2006a@yahoo.com List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Nov 2008 22:30:04 -0000 > lzma files in the current form are a major PITA. The format doesn't have > a proper header and therefore is not really autodetectable. I'm sure that the format has some shortcomings; however, it is being widely used, and so it would be helpful to be able to deal with such files. To be clear: I'm not arguing the merits of any particular *file format*, although I have mentioned a couple of the ones that are now used for lzma-compressed data. (There is no reason why we couldn't define and promote our own file format to contain such data, if we thought that the existing ones didn't meet our needs.) What I am arguing for is to have the capability to use lzma *compression* when it would be to our advantage. Regards, b.