Copyright (c) 1980 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms are permitted
provided that the above copyright notice and this paragraph are
duplicated in all such forms and that any documentation,
advertising materials, and other materials related to such
distribution and use acknowledge that the software was developed
by the University of California, Berkeley. The name of the
University may not be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
@(#)setreuid.2 6.2 (Berkeley) 05/18/89
All rights reserved.
Redistribution and use in source and binary forms are permitted
provided that the above copyright notice and this paragraph are
duplicated in all such forms and that any documentation,
advertising materials, and other materials related to such
distribution and use acknowledge that the software was developed
by the University of California, Berkeley. The name of the
University may not be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
@(#)setreuid.2 6.2 (Berkeley) 05/18/89
SETREUID 2 ""
C 4 NAME
setreuid - set real and effective user ID's
SYNOPSIS
setreuid(ruid, euid) int ruid, euid;
DESCRIPTION
The real and effective user ID's of the
current process are set according to the arguments.
If
ruid or
euid 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
make other changes.
"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 user-id to the real user-id was specified.
"SEE ALSO"
getuid(2), setregid(2), setuid(3)