From owner-freebsd-bugs@freebsd.org Wed Oct 21 21:25:18 2015 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1B0D6A1B3E5 for ; Wed, 21 Oct 2015 21:25:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id DA18AF1 for ; Wed, 21 Oct 2015 21:25:17 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id t9LLPHqV056530 for ; Wed, 21 Oct 2015 21:25:17 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 203873] [patch] make gzip(1) embedded-friendly and more compatible with GNU gzip Date: Wed, 21 Oct 2015 21:25:17 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 10.2-STABLE X-Bugzilla-Keywords: patch X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: portmaster@bsdforge.com X-Bugzilla-Status: In Progress X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Oct 2015 21:25:18 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203873 Chris Hutchinson changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |portmaster@bsdforge.com --- Comment #4 from Chris Hutchinson --- (In reply to eugen from comment #3) > > Are there other warnings we should capture as well? > > None I am aware of. > > > I'd like to see mention of the exit status in the man page as well. > > Feel free to add :-) English is not my nativa language and I'm afraid of bad > wording. How does the following look? gzip complains "trailing garbage ignored" Some tar.gz files are padded with zeroes to ensure a size which is a multiple of a certain block size. This occurs in particular when the compressed tar file is on a device, such as a magnetic tape. When such files are extracted with a command such as gunzip < file.tar.gz | tar xvf - gtar xvzf /dev/rmt/0 gunzip correctly decompresses the tar.gz file, then attempts to decompress the rest of the input which consists of zeroes. Since those zeroes are not in gzip format, gzip can complain, but ignores them. The tar extract command still works correctly, since gzip has sent through the pipe all the data that tar needs. You can suppress this harmless warning using the -q option, as in: gunzip -q < file.tar.gz | tar xvf - GZIP=-q gtar xvzf /dev/rmt/0 # for bash, ksh, sh ... (setenv GZIP -q; gtar xvzf /dev/rmt/0) # for csh, tcsh, ... I simply used information already available on gzip's web site, and modified it slightly. Hope it helps! --Chris -- You are receiving this mail because: You are the assignee for the bug.