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-- CA110041.A

--

--                             Grant of Unlimited Rights

--

--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,

--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained

--     unlimited rights in the software and documentation contained herein.

--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making

--     this public release, the Government intends to confer upon all

--     recipients unlimited rights  equal to those held by the Government.

--     These rights include rights to use, duplicate, release or disclose the

--     released technical data and computer software in whole or in part, in

--     any manner and for any purpose whatsoever, and to have or permit others

--     to do so.

--

--                                    DISCLAIMER

--

--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR

--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED

--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE

--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE

--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A

--     PARTICULAR PURPOSE OF SAID MATERIAL.

--*

--

-- OBJECTIVE:

--      See CA110042.AM

--

-- TEST DESCRIPTION:

--      See CA110042.AM

--

-- TEST FILES:

--      The following files comprise this test:

--

--         CA110040.A

--      => CA110041.A

--         CA110042.AM

--

-- CHANGE HISTORY:

--      06 Dec 94   SAIC    ACVC 2.0

--      26 Apr 96   SAIC    ACVC 2.1: Modified prologue.

--

--!

package CA110040.CA110041 is         -- Child Package Computer_System.Manager

   type User_Account is new Account with private;

   procedure Initialize_User_Account (Acct : out User_Account);

private

-- The private portion of this spec demonstrates that components contained

-- in the visible part of the parent are directly visible in the private

-- part of a public child.

   type Account_Access_Type is (None, Guest, User, System);

   type User_Account is new Account with                   -- Parent type.

      record

         Privilege : Account_Access_Type := None;

      end record;

   System_Account : User_Account :=

     (User_ID   => Administrator_Account.User_ID,          -- Parent constant.

      Privilege => System);                                -- User_ID has been

                                                           -- set to 1.

   Auditor_Account : User_Account :=

     (User_ID   => Next_Available_ID,                      -- Parent function.

      Privilege => System);                                -- User_ID has been

                                                           -- set to 2.

   Total_Authorized_Accounts : System_Account_Capacity

     renames Total_Accounts;                               -- Parent object.

   Unauthorized_Account : exception

     renames Illegal_Account;                              -- Parent exception

end CA110040.CA110041;             -- Child Package Computer_System.Manager

     --=================================================================--

                                 -- Child Package body Computer_System.Manager

package body CA110040.CA110041 is

   function  Account_Limit_Reached  return Boolean is

   begin

      if Total_Authorized_Accounts = Maximum_System_Accounts then

         return (True);

      else

         return (False);

      end if;

   end Account_Limit_Reached;

   ---------------------------------------------------------------

   function Valid_Account (Acct : User_Account) return Boolean is

      Result : Boolean := False;

   begin

      if (Acct.User_ID /= System_Account.User_ID) and

         (Acct.User_ID /= Auditor_Account.User_ID)

      then

         Result := True;

      end if;

      return (Result);

   end Valid_Account;

   ---------------------------------------------------------------

   procedure Initialize_User_Account (Acct : out User_Account) is

   begin

      if Account_Limit_Reached then

         raise Account_Limit_Exceeded;

      else

         Acct.User_ID := Next_Available_ID;

         Acct.Privilege := User;

      end if;

      if not Valid_Account (Acct) then

         raise Unauthorized_Account;

      end if;

   end Initialize_User_Account;

end CA110040.CA110041;          -- Child Package body Computer_System.Manager