def remote(port, host, remote_port, remote_host="127.0.0.1")
session.send_global_request("tcpip-forward", :string, remote_host, :long, remote_port) do |success, response|
if success
remote_port = response.read_long if remote_port == 0
debug { "remote forward from remote #{remote_host}:#{remote_port} to #{host}:#{port} established" }
@remote_forwarded_ports[[remote_port, remote_host]] = Remote.new(host, port)
yield remote_port, remote_host if block_given?
else
instruction = if block_given?
yield :error
end
unless instruction == :no_exception
error { "remote forwarding request failed" }
raise Net::SSH::Exception, "remote forwarding request failed"
end
end
end
end