Date: Wed, 7 Mar 2007 17:15:08 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: Tim Kientzle <kientzle@FreeBSD.org> Cc: Greg 'groggy' Lehey <grog@FreeBSD.org>, cvs-src@FreeBSD.org, src-committers@FreeBSD.org, Ruslan Ermilov <ru@FreeBSD.org>, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/usr.sbin/pkg_install/lib url.c Message-ID: <20070307171432.B28541@delplex.bde.org> In-Reply-To: <45EE3BC4.8070309@freebsd.org> References: <200703061454.l26Esj7D043245@repoman.freebsd.org> <45EDA7E2.4040300@freebsd.org> <20070306204307.GD43608@rambler-co.ru> <20070306231228.GC68567@wantadilla.lemis.com> <45EE3BC4.8070309@freebsd.org>
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On Tue, 6 Mar 2007, Tim Kientzle wrote:
>>>>> ... GNU tar(1) implied the
>>>>> -p option for root, but BSD tar(1) doesn't do that.
>>>>
>>>> Hmmm... This might actually be considered a bsdtar bug.
>>>> I'll look into it.
>>>
>>> That behavior of BSD tar(1) surprised me, to be honest.
>
> It's a trivial fix; there's already a check for whether
> tar is being run by root. If so, it sets _EXTRACT_OWNER
> to restore the owner. I just need to fill in the flags
> associated with -p as well.
>
> One problem that I don't see documented in any GNU tar
> docs I can find: Is there a way to suppress this behavior
> for root in GNU tar?
>From tar.info:
%%%
`--no-same-owner'
Do not attempt to restore ownership when extracting. This is the
default behavior for ordinary users, so this option has an effect
only for the superuser.
%%%
Bruce
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