I need to use a serial link between 2 computers for a homework at school (XMODEM protocol implementation); since I'm not in the mood of buying a serial cable, I want to know if it's possible to emulate it, on the same computer (i.e. by using devices /dev/ttyS0 and /dev/ttyS1 to simulate the local and the remote port of the serial link. Anything I write in one I should be able to read from another.). Are there any drivers/programs to do this?
Thanks in advance.