Copyright (c) 1983 Regents of the University of California.
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)Xsetregid.2 5.1 (Berkeley) 05/15/85
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)Xsetregid.2 5.1 (Berkeley) 05/15/85
SETREGID 2 "12 February 1983"
C 5 NAME
setregid - set real and effective group ID
SYNOPSIS
setregid(rgid, egid)
int rgid, egid;
DESCRIPTION
The real and effective group ID's of the current process
are set to the arguments.
Only the super-user may change the real group ID
of a process. Unpriviledged users may change the
effective group ID to the real group ID, but to
no other.
Supplying a value of -1 for either the real or effective group ID forces the system to substitute the current ID in place of the -1 parameter.
"RETURN VALUE
Upon successful completion, a value of 0 is returned. Otherwise,
a value of -1 is returned and errno is set to indicate the error.
"ERRORS
15 [EPERM] The current process is not the super-user and a change other than changing the effective group-id to the real group-id was specified.
"SEE ALSO"
getgid(2), setreuid(2), setgid(3)