NAME

     getuid, geteuid - get user identity


SYNOPSIS

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

     uid_t getuid(void)
     uid_t geteuid(void)


DESCRIPTION

     Getuid returns the real user  ID  of  the  current  process,
     geteuid the effective user ID.

     The real user ID identifies the person  who  is  logged  in.
     The  effective  user ID gives the process additional permis-
     sions during  execution  of  "set-user-ID"  mode  processes,
     which  use  getuid to determine the real-user-id of the pro-
     cess that invoked them.


SEE ALSO

     getgid(2), setuid(2).