About serial communication

Hi all,

i am writing program for serail communication, in which whatever i
typed on a console of one computer must appear on console of other
computer which seriall connected using RS232.
i have use following documentation for the program

http://www.easysw.com/~mike/serial/serial.html#2_5
http://www.faqs.org/docs/Linux-HOWTO/Serial-Programming-HOWTO.html#INTRO
http://www.comptechdoc.org/os/linux/programming/c/linux_pgcserial.html
(I have directly download COM.C program from this sites and
connected two PCs using serial line eventhough it is not working)

i deadly need your help. please help me what i have to do now.

dharmendra

.