Re: cpio and tar are loosing flags (and a panic message without trace)

From: Emanuel Strobl <Emanuel.strobl_at_gmx.net>
Date: Mon, 29 Aug 2005 17:06:58 +0200
Am Montag, 29. August 2005 12:37 CEST schrieb Yar Tikhiy:
> On Fri, Aug 26, 2005 at 08:04:45PM +0200, Emanuel Strobl wrote:
> > Then I remember Tim Kienzles great work for bsdtar and all the ACL
> > stuff, but unfortunately a cvPPzf <> xvpPfz also looses the arch flag
> > :(
>
> Would you mind sending a PR on this issue with kientzle_at_freebsd.org
> in Cc:?  I believe Tim will be interested in it.  I've just confirmed
> myself using not-too-old CURRENT that bsdtar won't restore file
> flags stored in its own archive:
>
> vpc7# tar --version
> bsdtar 1.02.023, libarchive 1.02.026
> Copyright (C) 2003-2005 Tim Kientzle
> vpc7# sysctl kern.securelevel
> kern.securelevel: -1
> vpc7# mkdir dir
> vpc7# touch dir/file
> vpc7# chflags arch,sunlink dir/file
> vpc7# ls -lo dir/file
> -rw-r--r--  1 root  staff  arch,sunlnk 0 Aug 29 14:35 dir/file
> vpc7# tar cf dir.tar dir
> vpc7# hd dir.tar | grep -1 fflags
> 00000420  35 33 32 36 31 34 39 0a  32 39 20 53 43 48 49 4c  |5326149.29
> SCHIL| 00000430  59 2e 66 66 6c 61 67 73  3d 61 72 63 68 2c 73 75 
> |Y.fflags=arch,su| 00000440  6e 6c 6e 6b 0a 31 37 20  53 43 48 49 4c 59
> 2e 64  |nlnk.17 SCHILY.d| vpc7# mv dir dir.bak
> vpc7# tar xpf dir.tar
> vpc7# ls -lo dir/file
> -rw-r--r--  1 root  staff  - 0 Aug 29 14:35 dir/file
>
> This is at variance with what the tar(1) manpage says:
>
>      -p      (x mode only) Preserve file permissions.  Attempt to
> restore the full permissions, including owner, file modes, file flags
> and ACLs, if available, for each item extracted from the archive...
>
> I think it might be reasonable to include these details in the PR.

I filed a PR: http://www.freebsd.org/cgi/query-pr.cgi?pr=84135
Unfortunately I forgot to include your analysis here, so I CC this message 
to Tim Kientzle.

-Harry

Received on Mon Aug 29 2005 - 13:07:11 UTC

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