reactos/lib/ntdll/rtl/misc.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:         See COPYING in the top level directory
   4  * PROJECT:           ReactOS kernel
   5  * PURPOSE:           Various functions
   6  * FILE:              lib/ntdll/rtl/misc.c
   7  * PROGRAMER:         Eric Kohl <ekohl@zr-online.de>
   8  * REVISION HISTORY:
   9  *                    10/08/2000: Created
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ntdll.h>
  15 #define NDEBUG
  16 #include <debug.h>
  17
  18 /**********************************************************************
  19  * NAME                                                 EXPORTED
  20  *      RtlGetNtProductType
  21  *
  22  * DESCRIPTION
  23  *      Retrieves the OS product type.
  24  *
  25  * ARGUMENTS
  26  *      ProductType     Pointer to the product type variable.
  27  *
  28  * RETURN VALUE
  29  *      TRUE if successful, otherwise FALSE
  30  *
  31  * NOTE
  32  *      ProductType can be one of the following values:
  33  *        1     Workstation (Winnt)
  34  *        2     Server (Lanmannt)
  35  *        3     Advanced Server (Servernt)
  36  *
  37  * REVISIONS
  38  *      2000-08-10 ekohl
  39  *
  40  * @implemented
  41  */
  42
  43 BOOLEAN STDCALL
  44 RtlGetNtProductType(PNT_PRODUCT_TYPE ProductType)
  45 {
  46   *ProductType = SharedUserData->NtProductType;
  47   return(TRUE);
  48 }
  49
  50 /**********************************************************************
  51  * NAME                                                 EXPORTED
  52  *      RtlGetNtVersionNumbers
  53  *
  54  * DESCRIPTION
  55  *      Get the version numbers of the run time library.
  56  *
  57  * ARGUMENTS
  58  *      major [OUT]     Destination for the Major version
  59  *      minor [OUT]     Destination for the Minor version
  60  *      build [OUT]     Destination for the Build version
  61  *
  62  * RETURN VALUE
  63  *      Nothing.
  64  *
  65  * NOTE
  66  *      Introduced in Windows XP (NT5.1)
  67  *
  68  * @implemented
  69  */
  70
  71 void STDCALL
  72 RtlGetNtVersionNumbers(LPDWORD major, LPDWORD minor, LPDWORD build)
  73 {
  74         PPEB pPeb = NtCurrentPeb();
  75
  76         if (major)
  77         {
  78                 /* msvcrt.dll as released with XP Home fails in DLLMain() if the
  79                  * major version is not 5. So, we should never set a version < 5 ...
  80                  * This makes sense since this call didn't exist before XP anyway.
  81                  */
  82                 *major = pPeb->OSMajorVersion < 5 ? 5 : pPeb->OSMajorVersion;
  83         }
  84
  85         if (minor)
  86         {
  87                 if (pPeb->OSMinorVersion <= 5)
  88                         *minor = pPeb->OSMinorVersion < 1 ? 1 : pPeb->OSMinorVersion;
  89                 else
  90                         *minor = pPeb->OSMinorVersion;
  91         }
  92
  93         if (build)
  94         {
  95                 /* FIXME: Does anybody know the real formula? */
  96                 *build = (0xF0000000 | pPeb->OSBuildNumber);
  97         }
  98 }
  99
 100 /*
 101 * @implemented
 102 */
 103 ULONG
 104 STDCALL
 105 RtlGetNtGlobalFlags(VOID)
 106 {
 107         PPEB pPeb = NtCurrentPeb();
 108         return pPeb->NtGlobalFlag;
 109 }
 110
 111
 112 /*
 113  * @implemented
 114  */
 115 PVOID
 116 STDCALL
 117 RtlEncodePointer(IN PVOID Pointer)
 118 {
 119   ULONG Cookie;
 120   NTSTATUS Status;
 121
 122   Status = NtQueryInformationProcess(NtCurrentProcess(),
 123                                      ProcessCookie,
 124                                      &Cookie,
 125                                      sizeof(Cookie),
 126                                      NULL);
 127
 128   if(!NT_SUCCESS(Status))
 129   {
 130     DPRINT1("Failed to receive the process cookie! Status: 0x%x\n", Status);
 131     return Pointer;
 132   }
 133
 134   return (PVOID)((ULONG_PTR)Pointer ^ Cookie);
 135 }
 136