if [ -w branching: how to spot a locked USB stick
Christopher Faylor
cgf-use-the-mailinglist-please@cygwin.com
Fri Jul 13 14:27:00 GMT 2007
On Fri, Jul 13, 2007 at 04:15:26PM +0200, Corinna Vinschen wrote:
>On Jul 13 08:00, Eric Blake wrote:
>> 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?
>
>Not that I'm aware of. I added this to my TODO list. However, as
>usual, http://cygwin.com/acronyms/#PTC.
Why do I see another bullet item for the "Why is cygwin so slow" discussion
here?
cgf
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