This point is not defended very well:
> For example to determine type of all files in a directory
> file managers must:
[...]
> - refer to /etc/magic (very slow)
/etc/magic is not necessarily very slow, especially when you're
dealing with a bunch of files at once. Any library-based
implementation of "albods" uses a similar mechanism.
> b. Security holes
> ACLs in tarball?
This is a good point. However, it may be solvable with a much simpler
kernel mechanism.
> 4. Possible variants (all):
Note that all of these ideas have problems. You have to break either
"ftp" or "cat". Choose your poison, or choose to do it the Unix way --
use a user level library, and accept that the normal utilities may not
deal with compound files in nice ways.
-- g
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