From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Robert Pluim Newsgroups: gmane.emacs.bugs Subject: bug#42535: 28.0.50; macOS test failure: echo-server-with-dns Date: Tue, 04 Aug 2020 17:32:04 +0200 Message-ID: References: <87a6zao5zg.fsf@gnus.org> <871rkmo4qh.fsf@gnus.org> <87r1smmp3d.fsf@gnus.org> <87imdymogd.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="25223"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 42535@debbugs.gnu.org, Philipp To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Aug 04 17:33:11 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1k2ywA-0006P4-9Q for geb-bug-gnu-emacs@m.gmane-mx.org; 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Tue, 04 Aug 2020 08:32:05 -0700 (PDT) In-Reply-To: <87imdymogd.fsf@gnus.org> (Lars Ingebrigtsen's message of "Tue, 04 Aug 2020 17:16:02 +0200") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:184017 Archived-At: >>>>> On Tue, 04 Aug 2020 17:16:02 +0200, Lars Ingebrigtsen said: Lars> Robert Pluim writes: >> Why restrict yourself to IPv4? >>=20 >> (network-lookup-address-info (system-name)) >> =3D> ([0 0 0 0 0 0 0 1 0] [127 0 0 1 0]) Lars> Sure. So if the first octet is 0 or 127, then we have a resolving Lars> (system-name)? I'm not sure what the rules are on ipv6 for local= host... There is one and only one IPv6 localhost, and it=CA=BCs the one above. There are no currently assigned IPv6 prefixes with a 0 in the first octet, but in 40 years, who know? IPv4 localhost is anything in 127.0.0.0/8, so testing the first octet is enough. Robert