Originální popis anglicky:
getuid, geteuid - get user identity
Návod, kniha: Linux Programmer's Manual
#include <unistd.h>
#include <sys/types.h>
uid_t getuid(void);
uid_t geteuid(void);
getuid returns the real user ID of the current process.
geteuid returns the effective user ID of the current process.
The real ID corresponds to the ID of the calling process. The effective ID
corresponds to the set ID bit on the file being executed.
These functions are always successful.
POSIX, BSD 4.3.
In Unix V6 the
getuid() call returned (euid << 8) + uid. Unix V7
introduced separate calls
getuid() and
geteuid().
setreuid(2),
setuid(2)
