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System Calls getuid(2)
NAME
getuid, geteuid, getgid, getegid - get real user, effective
user, real group, and effective group IDs
SYNOPSIS
#include <sys/types.h>
#include <unistd.h>
uid_t getuid(void);
uid_t geteuid(void);
gid_t getgid(void);
gid_t getegid(void);
DESCRIPTION
The getuid() function returns the real user ID of the cal-
ling process. The real user ID identifies the person who is
logged in.
The geteuid() function returns the effective user ID of the
calling process. The effective user ID gives the process
various permissions during execution of "set-user-ID" mode
processes which use getuid() to determine the real user ID
of the process that invoked them.
The getgid() function returns the real group ID of the cal-
ling process.
The getegid() function returns the effective group ID of the
calling process.
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Standard |
|_____________________________|_____________________________|
| MT-Level | Async-Signal-Safe |
|_____________________________|_____________________________|
SEE ALSO
intro(2), setuid(2), attributes(5), standards(5)
SunOS 5.10 Last change: 28 Dec 1996 1
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Wed Sep 12 11:26:59 GMT 2007
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