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1.1 root 1: .\" Copyright (c) 1980 The Regents of the University of California.
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18: .\" @(#)setreuid.2 6.3 (Berkeley) 6/23/90
19: .\"
20: .TH SETREUID 2 "June 23, 1990"
21: .UC 4
22: .SH NAME
23: setreuid \- set real and effective user ID's
24: .SH SYNOPSIS
25: .ft B
26: .nf
27: setreuid(ruid, euid)
28: int ruid, euid;
29: .fi
30: .ft R
31: .SH DESCRIPTION
32: The real and effective user ID's of the
33: current process are set according to the arguments.
34: If
35: .I ruid
36: or
37: .I euid
38: is \-1, the current uid is filled in by the system.
39: Unprivileged users may change the real user
40: ID to the effective user ID and vice-versa; only the super-user may
41: make other changes.
42: .SH "RETURN VALUE
43: Upon successful completion, a value of 0 is returned. Otherwise,
44: a value of \-1 is returned and \fIerrno\fP is set to indicate the error.
45: .SH "ERRORS
46: .TP 15
47: [EPERM]
48: The current process is not the super-user and a change
49: other than changing the effective user-id to the real user-id
50: was specified.
51: .SH "SEE ALSO"
52: getuid(2), setregid(2), setuid(3)
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