GETUID(II)                   5/15/74                   GETUID(II)







NAME

     getuid  -  get user identifications



SYNOPSIS

     (getuid = 24.)

     sys getuid



     getuid( )



DESCRIPTION

     Getuid returns a  word  (in  r0),  the  low  byte  of  which

     contains  the real user ID of the current process.  The high

     byte contains the effective user ID of the current  process.

     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.



SEE ALSO

     setuid (II)



DIAGNOSTICS

     -