From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#25419: give better message when trying to go to forbidden areas Date: Fri, 27 Jan 2017 10:59:08 +0200 Message-ID: <83poj8280z.fsf@gnu.org> References: <87ziixzmfb.fsf@jidanni.org> <83wpe1cwd1.fsf@gnu.org> <87inpbwwxa.fsf@users.sourceforge.net> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: blaine.gmane.org 1485507631 25570 195.159.176.226 (27 Jan 2017 09:00:31 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 27 Jan 2017 09:00:31 +0000 (UTC) Cc: 25419-done@debbugs.gnu.org, jidanni@jidanni.org To: npostavs@users.sourceforge.net Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Jan 27 10:00:25 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cX2OA-0004mX-7U for geb-bug-gnu-emacs@m.gmane.org; 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Fri, 27 Jan 2017 04:00:02 -0500 Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-To: bug-gnu-emacs@gnu.org Resent-Date: Fri, 27 Jan 2017 09:00:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: cc-closed 25419 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Mail-Followup-To: 25419@debbugs.gnu.org, eliz@gnu.org, jidanni@jidanni.org Original-Received: via spool by 25419-done@debbugs.gnu.org id=D25419.148550757120389 (code D ref 25419); Fri, 27 Jan 2017 09:00:02 +0000 Original-Received: (at 25419-done) by debbugs.gnu.org; 27 Jan 2017 08:59:31 +0000 Original-Received: from localhost ([127.0.0.1]:46947 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cX2NX-0005In-Aq for submit@debbugs.gnu.org; Fri, 27 Jan 2017 03:59:31 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:37916) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cX2NV-0005IZ-VB for 25419-done@debbugs.gnu.org; Fri, 27 Jan 2017 03:59:30 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cX2NN-0002gf-LP for 25419-done@debbugs.gnu.org; Fri, 27 Jan 2017 03:59:24 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:59927) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cX2NN-0002gb-IX; Fri, 27 Jan 2017 03:59:21 -0500 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:4015 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1cX2NM-0001Ah-Cu; Fri, 27 Jan 2017 03:59:21 -0500 In-reply-to: <87inpbwwxa.fsf@users.sourceforge.net> (npostavs@users.sourceforge.net) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:128650 Archived-At: > From: npostavs@users.sourceforge.net > Cc: 積丹尼 Dan Jacobson , > 25419@debbugs.gnu.org > Date: Wed, 18 Jan 2017 22:28:17 -0500 > > Eli Zaretskii writes: > > >> From: 積丹尼 Dan Jacobson > >> > >> Date: Wed, 11 Jan 2017 22:44:08 +0800 > >> > >> Do C-x C-f ~root > >> You will see: > >> Setting current directory: Success, /root/ > > > > That's because /root has a file-name handler, > > tramp-completion-file-name-handler, and although that handler turns > > around and calls file-accessible-directory-p, the value of errno is > > lost in transition: > > > > /* If the file name has special constructs in it, > > call the corresponding file handler. */ > > handler = Ffind_file_name_handler (absname, Qfile_accessible_directory_p); > > if (!NILP (handler)) > > { > > Lisp_Object r = call2 (handler, Qfile_accessible_directory_p, absname); > > errno = 0; > > return r; > > } > > > > Is there any better way than arbitrarily set errno to EACCES if the > > handler returns something other than t? > > AFAICT, not without changing the interface of > file-accessible-directory-p file handler, no. OK, thanks. I made that change, and I'm marking this bug done.