晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

HOME


sh-3ll 1.0
DIR:/opt/alt/ruby27/share/ruby/
Upload File :
Current File : //opt/alt/ruby27/share/ruby/resolv-replace.rb
# frozen_string_literal: true

require 'socket'
require 'resolv'

class << IPSocket
  # :stopdoc:
  alias original_resolv_getaddress getaddress
  # :startdoc:
  def getaddress(host)
    begin
      return Resolv.getaddress(host).to_s
    rescue Resolv::ResolvError
      raise SocketError, "Hostname not known: #{host}"
    end
  end
end

class TCPSocket < IPSocket
  # :stopdoc:
  alias original_resolv_initialize initialize
  # :startdoc:
  def initialize(host, serv, *rest)
    rest[0] = IPSocket.getaddress(rest[0]) if rest[0]
    original_resolv_initialize(IPSocket.getaddress(host), serv, *rest)
  end
end

class UDPSocket < IPSocket
  # :stopdoc:
  alias original_resolv_bind bind
  # :startdoc:
  def bind(host, port)
    host = IPSocket.getaddress(host) if host != ""
    original_resolv_bind(host, port)
  end

  # :stopdoc:
  alias original_resolv_connect connect
  # :startdoc:
  def connect(host, port)
    original_resolv_connect(IPSocket.getaddress(host), port)
  end

  # :stopdoc:
  alias original_resolv_send send
  # :startdoc:
  def send(mesg, flags, *rest)
    if rest.length == 2
      host, port = rest
      begin
        addrs = Resolv.getaddresses(host)
      rescue Resolv::ResolvError
        raise SocketError, "Hostname not known: #{host}"
      end
      addrs[0...-1].each {|addr|
        begin
          return original_resolv_send(mesg, flags, addr, port)
        rescue SystemCallError
        end
      }
      original_resolv_send(mesg, flags, addrs[-1], port)
    else
      original_resolv_send(mesg, flags, *rest)
    end
  end
end

class SOCKSSocket < TCPSocket
  # :stopdoc:
  alias original_resolv_initialize initialize
  # :startdoc:
  def initialize(host, serv)
    original_resolv_initialize(IPSocket.getaddress(host), port)
  end
end if defined? SOCKSSocket