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I'm surprised nobody has answered you yet.
On reflection, the title probably doesn't match the actual question (which boils down to directory permissions) all that well.
So I guess the & 0222 is making sure that each dir is not writable?
Thanks for that - that makes sense (typo - it's 0022, not 0222).
So .... according to stat(), all directories on my windows Vista box (even those that I can't write to) are drwxrwxrwx.
Does this signify some shortcoming of the stat function on Windows ?
Or does it signify some problem with the way this box is set up ?
Or does it mean something else altogether ?
And what are the ramifications re the particular condition in sub env_untaint that's posing the problem ?
I haven't found anything helpful about this in the stat or perlport documentation.