lib/ntdll/rtl/access.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:         See COPYING in the top level directory
   4  * PROJECT:           ReactOS kernel
   5  * PURPOSE:           Access rights handling functions
   6  * FILE:              lib/ntdll/rtl/access.c
   7  * PROGRAMER:         Eric Kohl <ekohl@rz-online.de>
   8  * REVISION HISTORY:
   9  *                    06/04/2000: Created
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ddk/ntddk.h>
  15
  16 #include <ntdll/ntdll.h>
  17
  18 /* FUNCTIONS ***************************************************************/
  19
  20 BOOLEAN
  21 STDCALL
  22 RtlAreAllAccessesGranted (
  23         ACCESS_MASK     GrantedAccess,
  24         ACCESS_MASK     DesiredAccess
  25         )
  26 {
  27         return ((GrantedAccess & DesiredAccess) == DesiredAccess);
  28 }
  29
  30
  31 /*
  32  * @implemented
  33  */
  34 BOOLEAN
  35 STDCALL
  36 RtlAreAnyAccessesGranted (
  37         ACCESS_MASK     GrantedAccess,
  38         ACCESS_MASK     DesiredAccess
  39         )
  40 {
  41         return ((GrantedAccess & DesiredAccess) != 0);
  42 }
  43
  44
  45 /*
  46  * @implemented
  47  */
  48 VOID
  49 STDCALL
  50 RtlMapGenericMask (
  51         PACCESS_MASK            AccessMask,
  52         PGENERIC_MAPPING        GenericMapping
  53         )
  54 {
  55         if (*AccessMask & GENERIC_READ)
  56                 *AccessMask |= GenericMapping->GenericRead;
  57
  58         if (*AccessMask & GENERIC_WRITE)
  59                 *AccessMask |= GenericMapping->GenericWrite;
  60
  61         if (*AccessMask & GENERIC_EXECUTE)
  62                 *AccessMask |= GenericMapping->GenericExecute;
  63
  64         if (*AccessMask & GENERIC_ALL)
  65                 *AccessMask |= GenericMapping->GenericAll;
  66
  67         *AccessMask &= 0x0FFFFFFF;
  68 }
  69
  70 /* EOF */