From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#14779: 24.3; Failure to resolve IPv6 addresses in make-network-process Date: Wed, 23 Oct 2019 13:39:53 +0200 Message-ID: <875zkfhera.fsf@gnus.org> References: <87d2qzzs1t.fsf@toke.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="197304"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: 14779@debbugs.gnu.org To: toke@toke.dk (Toke =?UTF-8?Q?H=C3=B8iland-J=C3=B8rgensen?=) Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Oct 23 13:51:58 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iNFBF-000p9i-Mc for geb-bug-gnu-emacs@m.gmane.org; Wed, 23 Oct 2019 13:51:57 +0200 Original-Received: from localhost ([::1]:33066 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iNFBE-0007CF-0c for geb-bug-gnu-emacs@m.gmane.org; Wed, 23 Oct 2019 07:51:56 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55900) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iNEzk-0005w4-6o for bug-gnu-emacs@gnu.org; Wed, 23 Oct 2019 07:40:09 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iNEzj-00068m-2q for bug-gnu-emacs@gnu.org; Wed, 23 Oct 2019 07:40:04 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:52248) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iNEzi-00068i-Vs for bug-gnu-emacs@gnu.org; Wed, 23 Oct 2019 07:40:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1iNEzi-0000r1-JG for bug-gnu-emacs@gnu.org; Wed, 23 Oct 2019 07:40:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 23 Oct 2019 11:40:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 14779 X-GNU-PR-Package: emacs Original-Received: via spool by 14779-submit@debbugs.gnu.org id=B14779.15718308003269 (code B ref 14779); Wed, 23 Oct 2019 11:40:01 +0000 Original-Received: (at 14779) by debbugs.gnu.org; 23 Oct 2019 11:40:00 +0000 Original-Received: from localhost ([127.0.0.1]:32835 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iNEzf-0000qf-RZ for submit@debbugs.gnu.org; Wed, 23 Oct 2019 07:40:00 -0400 Original-Received: from quimby.gnus.org ([80.91.231.51]:36610) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iNEze-0000qV-Bc for 14779@debbugs.gnu.org; Wed, 23 Oct 2019 07:39:58 -0400 Original-Received: from cm-84.212.202.86.getinternet.no ([84.212.202.86] helo=marnie) by quimby.gnus.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iNEza-00037m-4k; Wed, 23 Oct 2019 13:39:56 +0200 In-Reply-To: <87d2qzzs1t.fsf@toke.dk> ("Toke \=\?utf-8\?Q\?H\=C3\=B8iland-J\?\= \=\?utf-8\?Q\?\=C3\=B8rgensen\=22's\?\= message of "Wed, 03 Jul 2013 15:33:50 +0200") 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: 209.51.188.43 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:170055 Archived-At: toke@toke.dk (Toke H=C3=B8iland-J=C3=B8rgensen) writes: > I'm using ERC to connect to IRC, and was wondering why the connection > used IPv4 rather than IPv6 when the server has both addresses > configured. Messing with the DNS resolver so the address only resolves > to IPv6 made Emacs unable to connect at all. > > Investigating this further, it seems that by default > make-network-process does not resolve IPv6 addresses at all unless > specifically asked to do so. More precisely, patch open-network-stream > to pass :family 0 (line 143 of network-stream.el) makes resolution work > as expected (i.e. first IPv6, then v4 if no v6 address exists), but the > default of leaving out the :family parameter (or setting it to nil) > makes resolution IPv4-only, resulting in a 'Name or service not known' > error when trying to connect. The code has changed substantially in the six years since this was reported. Are you still seeing these problems? --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no