Enables or disables specified privileges for the calling process.
    Format
      SYS$SETPRV  [enbflg] ,[prvadr] ,[prmflg] ,[prvprv]
    C Prototype
      int sys$setprv  (char enbflg, struct _generic_64 *prvadr, char
                      prmflg, struct _generic_64 *prvprv);
Additional Information:
explode
extract