From c109d8ab9f126faca71b4ffee10d2ecdc45235a3 Mon Sep 17 00:00:00 2001 From: akr Date: Sat, 31 Jan 2009 13:40:05 +0000 Subject: * lib/resolv.rb (Resolv::DNS#each_address): don't query IPv6 address if the host has no global IPv6 address. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21921 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- lib/resolv.rb | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'lib/resolv.rb') diff --git a/lib/resolv.rb b/lib/resolv.rb index fc3c78215b..ab10a79d72 100644 --- a/lib/resolv.rb +++ b/lib/resolv.rb @@ -379,8 +379,20 @@ class Resolv def each_address(name) each_resource(name, Resource::IN::A) {|resource| yield resource.address} - each_resource(name, Resource::IN::AAAA) {|resource| yield resource.address} + if use_ipv6? + each_resource(name, Resource::IN::AAAA) {|resource| yield resource.address} + end + end + + def use_ipv6? + begin + list = Socket.ip_address_list + rescue NotImplementedError + return true + end + list.any? {|a| a.ipv6? && !a.ipv6_loopback? && !a.ipv6_linklocal? } end + private :use_ipv6? ## # Gets the hostname for +address+ from the DNS resolver. -- cgit v1.2.3