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

[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.

-- 
Yar