From mboxrd@z Thu Jan  1 00:00:00 1970
From: Grant Miner <mine0057@mrs.umn.edu>
Subject: Re: metas Permission Denied
Date: Thu, 29 Apr 2004 15:52:17 -0500
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To: Boyd Waters <bwaters+mac@aoc.nrao.edu>
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> The traditional semantics of the 'x' bit on directories is awful; Banyan 
> Vines had an explicit 'scan' attrib on directories for this, and I 
> believe Windows has something as well. Some way to express "permission 
> to descend into this directory" as opposed to "permission to readdir() 
> this directory". Something that is NOT the 'x' bit. Would be perhaps too 
> awful or impossible to add to POSIX, I don't know.

In Windows they also just have a bit for "traverse directory / execute 
file" and another bit for "list directory / read data".

However, the default policy makes the OS ignore the traverse/execute for 
directory traversal (but not file execution) entirely!  This might be 
the way to go in Linux as well.