X-Spam-Check-By: sourceware.org Date: Fri, 13 Jul 2007 10:27:03 -0400 From: Christopher Faylor To: cygwin AT cygwin DOT com Subject: Re: if [ -w branching: how to spot a locked USB stick Message-ID: <20070713142703.GC13962@ednor.casa.cgf.cx> Reply-To: cygwin AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com References: <469715CF DOT 7090105 AT bonhard DOT uklinux DOT net> <46977404 DOT 6070105 AT byu DOT net> <20070713130620 DOT GT6851 AT calimero DOT vinschen DOT de> <46978595 DOT 5070605 AT byu DOT net> <20070713141526 DOT GW6851 AT calimero DOT vinschen DOT de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070713141526.GW6851@calimero.vinschen.de> User-Agent: Mutt/1.5.15 (2007-04-06) Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com 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 -- 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/