.\" Copyright (c) 1980 Regents of the University of California.
.\" All rights reserved. The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\" @(#)setreuid.2 6.1 (Berkeley) %G%
setreuid \- set real and effective user ID's
The real and effective user ID's of the
current process are set according to the arguments.
is \-1, the current uid is filled in by the system.
Unprivileged users may change the real user
ID to the effective user ID and vice-versa; only the super-user may
Upon successful completion, a value of 0 is returned. Otherwise,
a value of \-1 is returned and \fIerrno\fP is set to indicate the error.
The current process is not the super-user and a change
other than changing the effective user-id to the real user-id
getuid(2), setregid(2), setuid(3)