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Date: Fri, 13 Jul 2007 08:00:53 -0600
From: Eric Blake <ebb9 AT byu DOT net>
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To: cygwin AT cygwin DOT com
Subject: Re: if [ -w branching: how to spot a locked USB stick
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According to Corinna Vinschen on 7/13/2007 7:06 AM:
>> Actually, this is a cygwin question.  Bash's [ command only reports what
>> access("/h",W_OK) tells it to report, 
> 
> It's the latter.  The fact that the USB stick is locked doesn't
> mean that the permission bits returned by the OS calls are augmented
> to reflect the fact that the stick is not writable.  All permission
> bits are still intact.  Only when actually trying to write to the device,
> you'll get the Win32 error message equivalent of EROFS.

But POSIX requires access(...,W_OK) to fail with EROFS on a read-only file
system.  Is there any way for cygwin to easily determine this without
actually attempting a write?

http://www.opengroup.org/onlinepubs/009695399/functions/access.html

- --
Don't work too hard, make some time for fun as well!

Eric Blake             ebb9 AT byu DOT net
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