On Wed, Mar 07, 2007 at 05:15:08PM +1100, Bruce Evans wrote: > 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. > %%% > You probably wanted this instead:
: `--preserve-permissions' : `--same-permissions' : `-p' : When `tar' is extracting an archive, it normally subtracts the : users' umask from the permissions specified in the archive and : uses that number as the permissions to create the destination : file. Specifying this option instructs `tar' that it should use : the permissions directly from the archive. *Note Writing::. : : `--no-same-permissions' : When extracting an archive, subtract the user's umask from files : from the permissions specified in the archive. This is the : default behavior for ordinary users; this option has an effect : only for the superuser. It doesn't say it explicitly that -p is the default option for root, nowehre, but you can guess it from reading the last sentence. ;) Cheers, -- Ruslan Ermilov [EMAIL PROTECTED] FreeBSD committer
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