X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:content-type:mime-version:subject:from :in-reply-to:date:content-transfer-encoding:message-id :references:to; q=dns; s=default; b=uESWwDpIpoX63X7wbqQlupBviSjQ lk1fy+0w3mmH3R0VJmGxUiYtMOtrST9FnFtrVhslOZsTKIzIKNvzjGUa/HS2PLSo akZ7Uwr8OK3ebELcSVYL4tW51XW+eqoco1sX/K2WpchJtx1zfRq4ZuEzFKMx3N55 DSDy6RPhoh/Qr5w= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:content-type:mime-version:subject:from :in-reply-to:date:content-transfer-encoding:message-id :references:to; s=default; bh=4ngWnVrQuRVCONHa3GiZOpY9rHM=; b=oK vbPHWHVBe0FJ/iZ2dSytlKB7qZAecb3+jzh/ccg2T2+qBm9P5AUMBMMEurjWpaSo 0ReS0/BCYBdV7IqthYoN+kjPv/3dJ91s99YCTjaVRF2+T8EsI6Z6EMFbcKP+lgBD Orl6UjPGyqDHCs1yZefyuPaLJh6EJjq2s6PVOc4D8= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: 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 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=1.1 required=5.0 tests=AWL,BAYES_50,KAM_LAZY_DOMAIN_SECURITY,RP_MATCHES_RCVD autolearn=no version=3.3.2 X-HELO: etr-usa.com Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) Subject: Re: Error accessing mapped drive >2TB? From: Warren Young In-Reply-To: <20151023092007.GF5319@calimero.vinschen.de> Date: Fri, 23 Oct 2015 16:04:03 -0600 Message-Id: <0F9378A1-6890-42CE-BD19-578167F116AA@etr-usa.com> References: <712A87EA-64C7-4033-BE7F-39C8C8D527EB AT etr-usa DOT com> <20151021100328 DOT GL5319 AT calimero DOT vinschen DOT de> <20151021162254 DOT GC19868 AT calimero DOT vinschen DOT de> <169BF9F6-FF26-4073-9CC4-786882EFBAE9 AT etr-usa DOT com> <20151022083446 DOT GW5319 AT calimero DOT vinschen DOT de> <20151023092007 DOT GF5319 AT calimero DOT vinschen DOT de> To: cygwin AT cygwin DOT com X-IsSubscribed: yes Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id t9NM4LnB030299 On Oct 23, 2015, at 3:20 AM, Corinna Vinschen wrote: > > Well, it was *you* asking "How could we prove that the problem is the > Apple SMB server?" I was just trying to help. If that's not desired, > I don't have to. I shouldn’t have suggested attacking the problem at the SMB protocol layer to begin with. That requires the sort of expertise that the Samba and Apple developers have, and I doubt I can get access to either. Since I’m not going to go and acquire such expertise myself just to answer the question, it’s a hopeless line of inquiry. Instead, it would be better if we can refine the Windows API C code we’ve been playing with to show the problem. Then I can attach it to an Apple bug report. I’m sure they like STCs, too. :) I’ve made the suggested changes to the program, here: http://pastebin.com/uZdDZPgi Is that enough to take to Apple? I mean, does this let them wiggle out and say, “You’re doing it wrong”? >>>>> HANDLE handle = CreateFile ("P:\\", ...); >>>> >>>> I guess I’m not seeing what values to pass to CreateFile() >>> >>> Opening a directory requires to use the FILE_FLAG_BACKUP_SEMANTICS >>> flag. >> >> Yes, silly me for not guessing that Windows requires that I tell it I >> am about to do a backup before I attempt to open a directory for >> reading. What was so wrong about the design of opendir() that MS had >> to reinvent it this way? > > Think DOS/early Windows. CreateFile was not meant to open directories > to perform a directory search I was reacting more to the revelation that Windows has workarounds for the known-problematic file access semantics, and that they’re specifically labeled as “for backup programs” when in reality they’re just ad hoc post facto fixes to a poorly thought out initial design. They’ve reinvented Unix, poorly. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple