clay@titan.tsd.arlut.utexas.edu (Clay Johnson) (10/10/90)
Once a program that executes in set-user ID mode has changed its effective uid to the real uid, how can it change it back? setreuid(2) (sun 4.0 documentation) says that this can be done by restoring the saved set-user ID from execve(2), but execve(2) does not explain how to do it. Thank you.