.\" Copyright (c) 1980 Regents of the University of California.

.\" All rights reserved. The Berkeley software License Agreement

.\" specifies the terms and conditions for redistribution.

.\"

.\" @(#)getuid.2 6.3 (Berkeley) 1/7/86

.\"

.TH GETUID 2 "January 7, 1986"

.UC 4

.SH NAME

getuid, geteuid \- get user identity

.SH SYNOPSIS

.nf

.ft B

#include <sys/types.h>

#include <unistd.h>

uid_t getuid(void)

uid_t geteuid(void)

.fi

.SH DESCRIPTION

.B Getuid

returns the real user ID of the current process,

.B geteuid

the effective user ID.

.PP

The real user ID identifies the person who is logged in.

The effective user ID

gives the process additional permissions during

execution of \*(lqset-user-ID\*(rq mode processes, which use

\fBgetuid\fP to determine the real-user-id of the process that

invoked them.

.SH "SEE ALSO"

.BR getgid (2),

.BR setuid (2).