todo

来自「这是关于远程登陆TELNET 的源代码 已经测试过的。」· 代码 · 共 14 行

eliminate global variables
	clean up command processing
		fix "send" command
	clean up option processing

add empty encrypt hooks (layer over ring buffers)
flushout --> use nullsink

fix ring buffer so it allocates more buf instead of overflowing

put tracing back in

authentication?