X-Recipient: archive-cygwin AT delorie DOT com
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 8FF673AA9419
Authentication-Results: sourceware.org;
 dmarc=pass (p=none dis=none) header.from=yandex.ru
Authentication-Results: sourceware.org;
 spf=pass smtp.mailfrom=anrdaemon AT yandex DOT ru
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail;
 t=1618995001; bh=gJHiHqS0JQth0S+V+yOCqCz7wmX2lhaHQ0DcJNU3Unk=;
 h=In-Reply-To:Subject:To:From:Message-ID:References:Date:Reply-To;
 b=Rys4z/UqaHP8+QE8n5GxGPae4cda0buqPU1VjiIwbxE0x8nNfaqpFr5+Is8COSokD
 sbmNgyhiAdFZe7OQFtuAw5/Vd6p5x9K0RfI8YgswLKkMFhPTeumaMdDO8EzUEL8/Dq
 TeDy1xJX7wUOIrF3JJ3yWGcXhD0e3bF2Z0+F9y0Y=
Authentication-Results: sas1-8418212adc37.qloud-c.yandex.net;
 dkim=pass header.i=@yandex.ru
Date: Wed, 21 Apr 2021 11:49:00 +0300
From: Andrey Repin <anrdaemon AT yandex DOT ru>
X-Mailer: The Bat! (v6.8.8) Home
X-Priority: 3 (Normal)
Message-ID: <1801483573.20210421114900@yandex.ru>
To: Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>, cygwin AT cygwin DOT com
Subject: Re: Cannot access system32 directory from 32 bit cygwin after the
 commit 456c3a46
In-Reply-To: <20210421120457.cd5b6e966288aa62eee1a013@nifty.ne.jp>
References: <20210421120457 DOT cd5b6e966288aa62eee1a013 AT nifty DOT ne DOT jp>
MIME-Version: 1.0
X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, KAM_NUMSUBJECT,
 KAM_THEBAT, NICE_REPLY_A, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3,
 RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS,
 TXREP autolearn=no autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
Reply-To: cygwin AT cygwin DOT com
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: cygwin-bounces AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces AT cygwin DOT com>

Greetings, Takashi Yano!

> I noticed the problem that /cygdrive/c/Windows/System32 directory
> can be no longer accessed from 32 bit cygwin (WOW64) after the
> commit:

> commit 456c3a46386f38887407603b2c64b7f63a4871c5
> Author: Corinna Vinschen <corinna AT vinschen DOT de>
> Date:   Mon Apr 19 14:49:14 2021 +0200

>     Cygwin: path_conv: Try to handle native symlinks more sanely

>     For local paths, add a check if the inner path components contain native
>     symlinks or junctions.  Compare the incoming path with the path returned
>     by NtQueryInformationFile(FileNameInformation).  If they differ, there
>     must be at least one native symlink or junction in the path.  If so,
>     treat the currently evaluated file as non-existant.  This forces
>     path_conv::check to backtrack inner path components until we eliminated
>     all native symlinks or junctions and have a normalized path.

>     Signed-off-by: Corinna Vinschen <corinna AT vinschen DOT de>

> Reverting this commit resolves the issue.

> 64 bit cygwin does not seem to be affected. Could you please
> have a look?

How exactly it "can no longer be accessed" ? Is it opening WOW64 System32 or
not opening anything at all?


-- 
With best regards,
Andrey Repin
Wednesday, April 21, 2021 11:47:03

Sorry for my terrible english...


-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple