if [ -w branching: how to spot a locked USB stick
Fri Jul 13 14:00:00 GMT 2007
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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?
Don't work too hard, make some time for fun as well!
Eric Blake email@example.com
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