GETUID(2)

NAME
getuid, geteuid - get user identity

SYNOPSIS
#include <unistd.h>
#include <sys/types.h>

uid_t getuid(void);
uid_t geteuid(void);

DESCRIPTION
getuid() returns the real user ID of the current process.

geteuid() returns the effective user ID of the current process.

ERRORS
These functions are always successful.

CONFORMING TO
POSIX, 4.3BSD.

HISTORY
In Unix V6 the getuid() call returned (euid << 8) + uid. Unix V7 introduced separate calls getuid() and geteuid().

SEE ALSO
setreuid(2), setuid(2)