How to unsupress local echo

Question

I am trying to suppress the local echo of a password in a telnet session by sending 0xFF 0xFD 0x2D (IAC DO SUPPRESS_LOCAL_ECHO). This works fine.

My trouble is en

Answer 1

Send a backspace and then a *. This will backup the cursor and then print a * over the character they just printed. If it is a slow connection the character may be there for some amount of time. Also look for the '\n' and don't try to over write that.