[TUHS] History of chown semantics

Clem Cole clemc at ccc.com
Fri Jan 10 01:31:26 AEST 2014

On Thu, Jan 9, 2014 at 10:17 AM, Tim Bradshaw <tfb at tfeb.org> wrote:

> so probably they did not do this either: must have been some other system
> I used (Masscomps?)

I did something about it on RTU - I've just forgotten what.  Since tar came
from research which did have that kernel behavior, I'm guessing we modified
tar when in read (input) mode  to not call chown unless it was run as root.

To fix  the other issue with importing a tape that could be an issue, we
(mil did the code it I remember correctly) also added a way to strip the
leading slash from tar images on input so if some one wrote a tape with
full paths you could import it path relative - which the research/BSD
versions did not do - which until pax came along and later gnutar was not
easy to do.

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