X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:subject:to:references:message-id:date
	:mime-version:in-reply-to:content-type
	:content-transfer-encoding; q=dns; s=default; b=pWo+580oNM5Pqc7/
	WkToY7i8+mXveBD8evbtICloVM/juOxyQn+d9eNkfeDy3MRtcInpIm10GqPoK0hS
	kdL8RugL44d+AQ4Xwd2k7/1bcY7HK4VI5TJunXivfMSUN+4RS1kcr89hdO1y7Pe7
	Ceg2DVJqHP8kxinJ7IQOsxNHa3I=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:subject:to:references:message-id:date
	:mime-version:in-reply-to:content-type
	:content-transfer-encoding; s=default; bh=v1+brgwUyLXmVwLYJpZ5ji
	FQPBk=; b=bTEoJGhuGl0CBrECaNL4s5SMFMYdns6emer1d1bRhByxZbGoReNDfS
	g5ud9GyJx+uzlDrx3vq+F3xbc5o6JzmDOguvRXBNNFWmOIYjlzSVIGheI26krfoy
	zmxGxkKrXEjS5YRCRcsbjCcWKcas06p9RgiYWJ+onm5laML/ogvZY=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Virus-Found:	No
X-Spam-SWARE-Status:	No, score=-0.7 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,KAM_LAZY_DOMAIN_SECURITY,RCVD_IN_DNSWL_NONE autolearn=no version=3.3.2 spammy=H*F:D*wanadoo.fr, H*M:wanadoo
X-HELO:	smtp.smtpout.orange.fr
X-ME-Helo:	[192.168.0.11]
X-ME-Auth:	amVyb21lLmJvdWF0QHdhbmFkb28uZnI=
X-ME-Date:	Thu, 05 Oct 2017 21:10:16 +0200
X-ME-IP:	82.236.99.246
From:	=?UTF-8?B?SsOpcsO0bWUgQm91YXQ=?= <jerome DOT bouat AT wanadoo DOT fr>
Subject:	Re: a few tar.xz packages are bigger than their uncompressed tar
To:	cygwin AT cygwin DOT com
References:	<cc1a2cd5-a947-624e-4473-73151794a5d7 AT laposte DOT net> <960ca9df83cf80f4321a69f2d8b8c0ba AT mail DOT kylheku DOT com>
Message-ID:	<c7c8ac79-2fa7-7abe-2f3a-d3e588acbde9@wanadoo.fr>
Date:	Thu, 5 Oct 2017 21:10:16 +0200
User-Agent:	Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0
MIME-Version:	1.0
In-Reply-To:	<960ca9df83cf80f4321a69f2d8b8c0ba@mail.kylheku.com>
X-IsSubscribed:	yes

Hello

> No compression method need ever increase the
> size of the datum by more than one bit.
> 
> The compressed representation can begin with a header
> bit which is 1 to indicate "compressed" and 0 to indicate
> "stored without compression".

Does the xz format provide a checksum even if the file is stored without compression ?

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -