# File lib/net/ssh/transport/packet_stream.rb, line 39
    def client_name
      @client_name ||= begin
        sockaddr = getsockname
        begin
          Socket.getnameinfo(sockaddr, Socket::NI_NAMEREQD).first
        rescue
          begin
            Socket.getnameinfo(sockaddr).first
          rescue
            begin
              Socket.gethostbyname(Socket.gethostname).first
            rescue
              lwarn { "the client ipaddr/name could not be determined" }
              "unknown"
            end
          end
        end
      end
    end