Subject: Re: bug#40343: 28.0.50; dns-set-servers fails on IPv6 available Windows

From: Robert Pluim <[email-masked]>
Date: Tue, 31 Mar 2020 11:50:54 +0200

>>>>> On Tue, 31 Mar 2020 17:46:47 +0900, Kazuhiro Ito <[email-masked]> said:

    Kazuhiro> dns-set-servers function fails to set dns-servers on Windows with IPv6
    Kazuhiro> available network.

    Kazuhiro> (progn
    Kazuhiro>   (require 'dns)
    Kazuhiro>   (dns-set-servers)
    Kazuhiro>   dns-servers)

    -> (nil)

dns.el isnʼt going to work on Windows anyway, since Emacs doesnʼt
support UDP network processes on Windows. You can use
'network-lookup-address-info' (builtin) or 'nslookup-host' (from
net-utils.el) instead.

    Kazuhiro> From dns-set-servers definition in lisp/net/dns.el

    >> (re-search-forward
    >> "^Address:[ \t]*\\([0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+\\)" nil t)

That could be fixed, I suppose.

Robert