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 pro­
       cess.

       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.


ERRORS

       These functions are always successful.


CONFORMING TO

       POSIX, BSD 4.3.


SEE ALSO

       setreuid(2), setuid(2)