GETUID(2)               GENIX Programmer's Manual               GETUID(2)



      NAME
           getuid, getgid, geteuid, getegid - get user and group identity

      SYNOPSIS
           getuid()

           geteuid()

           getgid()

           getegid()

      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, in contradistinction to  the  effective  user  ID,  which
           determines  his  access permission at the moment.  It is thus useful
           to programs which operate using the `set user ID' mode, to find  out
           who invoked them.

           Getgid returns the real group ID, getegid the effective group ID.

      SEE ALSO
           setuid(2)































      Printed 11/16/83                                                        1