From: ts <decoux@...>
Date: 2001-09-05T19:07:43+09:00
Subject: [ruby-talk:20912] Re: Problem with druby related to TCPServer implementation on linux

>>>>> "C" == Christian Boos <<cboos@bct-technology.com>(by way of Christian Boos <cboos@bct-technology.com>) (by way of Christian Boos <cboos@bct-technology.com>)> writes:

C> - SuSE Linux 7.2 (kernel 2.4.4)
C> - ruby 1.6.4

moulon% ruby -v
ruby 1.6.4 (2001-06-04) [sparc-solaris2.7]
moulon%

C> -------------------------------------------------------------------
C> irb(main):001:0> require 'socket'
C> true
C> irb(main):002:0> soc = TCPServer.open(0)
C> #<TCPServer:0x401dbe4c>
C> irb(main):003:0> soc.addr[1]
C> SocketError: getnameinfo: ai_family not supported
C>         from (irb):6:in `addr'
C>         from (irb):6
C> --------------------------------

moulon% irb    
irb(main):001:0> require 'socket'
true
irb(main):002:0> soc = TCPServer.open(0)
#<TCPServer:0x1a14c0>
irb(main):003:0> p soc.addr
["AF_INET", 37293, "0.0.0.0", "0.0.0.0"]
nil
irb(main):004:0> ^D
moulon%

C> Changing it to PF_INET solves to problem, however I don't know enough about
C> the code to see if this is a proper fix. or just a hack :)

 No, it must be set to PF_UNSPEC to handle IPv6/IPv4



Guy Decoux