X-Spam-Check-By: sourceware.org Message-ID: <46977404.6070105@byu.net> Date: Fri, 13 Jul 2007 06:45:56 -0600 From: Eric Blake User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.4) Gecko/20070604 Thunderbird/2.0.0.4 Mnenhy/0.7.5.666 MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: if [ -w branching: how to spot a locked USB stick References: <469715CF.7090105@bonhard.uklinux.net> In-Reply-To: <469715CF.7090105@bonhard.uklinux.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to fergus on 7/13/2007 12:03 AM: > This question isn't strictly Cygwin, but I hope it's OK to ask it in the > context of Cygwin on a portable device eg a CD or a usb mobile drive or > memory stick: the bash command > > if [ -w /h ] ; then echo +W ; else echo -W ; fi > > tests a device located at /h (or /cygdrive/h) for write-ability: eg a > USB memory stick will echo +W and a CD will echo -W. If the stick is > locked, however, you still get +W. Actually, this is a cygwin question. Bash's [ command only reports what access("/h",W_OK) tells it to report, so the real question here is why cygwin1.dll thinks that a locked USB stick is writable. And the answer may be that either cygwin doesn't ask Windows the correct question (in which case, http://cygwin.com/acronyms/#PTC), or that Windows lies (in which case, there is no way to work around it). - -- Don't work too hard, make some time for fun as well! Eric Blake ebb9@byu.net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGl3QD84KuGfSFAYARAjK9AJ9gIwPPBay3s6gMvKLELJfN/lwMFwCgjZ3O CvxDY7RiAs/hq1uwU9z2gTU= =+qLs -----END PGP SIGNATURE----- -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/