def local(*args)
if args.length < 3 || args.length > 4
raise ArgumentError, "expected 3 or 4 parameters, got #{args.length}"
end
bind_address = "127.0.0.1"
bind_address = args.shift if args.first.is_a?(String) && args.first =~ /\D/
local_port = args.shift.to_i
remote_host = args.shift
remote_port = args.shift.to_i
socket = TCPServer.new(bind_address, local_port)
@local_forwarded_ports[[local_port, bind_address]] = socket
session.listen_to(socket) do |server|
client = server.accept
debug { "received connection on #{bind_address}:#{local_port}" }
channel = session.open_channel("direct-tcpip", :string, remote_host, :long, remote_port, :string, bind_address, :long, local_port) do |achannel|
achannel.info { "direct channel established" }
end
prepare_client(client, channel, :local)
channel.on_open_failed do |ch, code, description|
channel.error { "could not establish direct channel: #{description} (#{code})" }
channel[:socket].close
end
end
end