Here is some file about tty...

catty is a simple, very simple getty written by me Yann Droneaud <lch@multimania.com>
mingetty is my 'muse'. Most of the code was taken from it.
rungetty is a corrected version of mingetty.
getty_ps is another source...

 Name                    Last modified      Size  Description
 Parent Directory                             -   
 rungetty-1.2.tar.gz     26-Mar-2007 15:02   15K  
 mingetty-0.9.4-8.src..> 26-Mar-2007 15:02   20K  
 mingetty-0.9.1.tar.gz   26-Mar-2007 15:02   19K  
 getty_ps-2.0.7j.tar.gz  26-Mar-2007 15:02  129K  
 catty.tar.gz            26-Mar-2007 15:02  931