What is the syscall to make damn sure that the system knows who you are?

Didn't we have problems with xdm on some ports because of this?

Symptom: write user. User sees a write message from root. What is the
call to fix this?

XCOMM --------------------------------------------------------
XCOMM Kevin P. Neal, Sophomore CSC/CPE     kpneal@eos.ncsu.edu 
XCOMM North Carolina State University      kevinneal@bix.com
XCOMM --------------------------------------------------------