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System Callsgetuid(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 calling 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 calling process.

The getegid() function returns the effective group ID of the calling process.

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
MT-LevelAsync-Signal-Safe

SEE ALSO

 

intro(2), setuid(2), attributes(5)

SunOS 5.9Go To TopLast Changed 28 Dec 1996
 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.