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geteuid (2)
GETUID(2) Linux Programmer's Manual 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.1-2001, 4.3BSD.
NOTES
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)
Linux 1993-07-23 GETUID(2)
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