[ACL-Devel] archiving acls: tar and cpio

[Michael Tokarev]

Just an "orthogonal" view.  Maybe use some option for archiver
when _creating_ archive?  Like this:

   tar cvfp arch.tar files

to store "normal" names, and

   tar cvfpn arch.tar files

to store uids only?

For tar/pax `names' should be the default;  for cpio (e.g.)
uids should be the default (again, just an example; probably
this should depend on format, e.g. for `pax -t cpio' default
should be uids etc).

All of this taken from the usage of the further archive.  If
it intended for backups, uids should be used (e.g. dump should
use uids _only_), while for "regular" use, names should be
preferred.

This way, no new format should be introduced; just use "standard"
one with 3 fields.  But in the 2nd field will be different for
"backup" and "regular" archives:
  user:mjt:rwx  vs  user:502:rwx
Again, when extracting, numerics will be interpreted as uid while
strings as name.

?

Regards,
 Michael.
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