Resolv.rb and IPv6 nameservers

Hello folks,

UDPSocket requires address family given on initialization, so it’s not
possible to create an UDPSocket and then decide, to which hosts to
send packets to.

That’s a problem for Ruby’s resolver if you’ve got AF_INET6 nameservers
in your /etc/resolv.conf. The following very dirty hack chooses AF_INET6
for UDPSocket, if the nameserver’s address contains colons (:).

— /usr/local/lib/ruby/1.8/resolv.rb Mon Feb 7 16:24:09 2005
+++ resolv2.rb Sun Apr 23 20:53:17 2006
@@ -621,7 +621,7 @@
super()
@host = host
@port = port

  •      @sock = UDPSocket.new
    
  •      @sock = UDPSocket.new(host.index(':') ? Socket::AF_INET6 : 
    

Socket::AF_INET)
@sock.connect(host, port)
@sock.fcntl(Fcntl::F_SETFD, 1) if defined? Fcntl::F_SETFD
@id = -1

Any suggestions?

Stephan.

On Apr 23, 2006, at 12:24 PM, Stephan M. wrote:

for UDPSocket, if the nameserver’s address contains colons (:).
@sock.connect(host, port)
@sock.fcntl(Fcntl::F_SETFD, 1) if defined? Fcntl::F_SETFD
@id = -1

Any suggestions?

Send this patch to ruby-core or the maintainer (I think Akira T.).


Eric H. - [email protected] - http://blog.segment7.net
This implementation is HODEL-HASH-9600 compliant

http://trackmap.robotcoop.com

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