reactos/dll/ntdll/rtl/version.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS system libraries
   4  * FILE:            lib/ntdll/rtl/process.c
   5  * PURPOSE:         Process functions
   6  * PROGRAMMER:      Ariadne (ariadne@xs4all.nl)
   7  * UPDATE HISTORY:
   8  *                  Created 01/11/98
   9  */
  10
  11 /* INCLUDES ****************************************************************/
  12
  13 #include <ntdll.h>
  14 #define NDEBUG
  15 #include <debug.h>
  16
  17 /* FUNCTIONS ****************************************************************/
  18
  19 /**********************************************************************
  20  * NAME                                                 EXPORTED
  21  *      RtlGetNtProductType
  22  *
  23  * DESCRIPTION
  24  *      Retrieves the OS product type.
  25  *
  26  * ARGUMENTS
  27  *      ProductType     Pointer to the product type variable.
  28  *
  29  * RETURN VALUE
  30  *      TRUE if successful, otherwise FALSE
  31  *
  32  * NOTE
  33  *      ProductType can be one of the following values:
  34  *        1     Workstation (WinNT)
  35  *        2     Server (LanmanNT)
  36  *        3     Advanced Server (ServerNT)
  37  *
  38  * REVISIONS
  39  *      2000-08-10 ekohl
  40  *
  41  * @implemented
  42  */
  43
  44 BOOLEAN NTAPI
  45 RtlGetNtProductType(PNT_PRODUCT_TYPE ProductType)
  46 {
  47   *ProductType = SharedUserData->NtProductType;
  48   return(TRUE);
  49 }
  50
  51 /**********************************************************************
  52  * NAME                                                 EXPORTED
  53  *      RtlGetNtVersionNumbers
  54  *
  55  * DESCRIPTION
  56  *      Get the version numbers of the run time library.
  57  *
  58  * ARGUMENTS
  59  *      pdwMajorVersion [OUT]   Destination for the Major version
  60  *      pdwMinorVersion [OUT]   Destination for the Minor version
  61  *      pdwBuildNumber  [OUT]   Destination for the Build version
  62  *
  63  * RETURN VALUE
  64  *      Nothing.
  65  *
  66  * NOTES
  67  *      - Introduced in Windows XP (NT 5.1)
  68  *      - Since this call didn't exist before XP, we report at least the version
  69  *        5.1. This fixes the loading of msvcrt.dll as released with XP Home,
  70  *        which fails in DLLMain() if the major version isn't 5.
  71  *
  72  * @implemented
  73  */
  74
  75 VOID NTAPI
  76 RtlGetNtVersionNumbers(OUT LPDWORD pdwMajorVersion,
  77                        OUT LPDWORD pdwMinorVersion,
  78                        OUT LPDWORD pdwBuildNumber)
  79 {
  80     PPEB pPeb = NtCurrentPeb();
  81
  82     if (pdwMajorVersion)
  83     {
  84         *pdwMajorVersion = pPeb->OSMajorVersion < 5 ? 5 : pPeb->OSMajorVersion;
  85     }
  86
  87     if (pdwMinorVersion)
  88     {
  89         if ( (pPeb->OSMajorVersion  < 5) ||
  90             ((pPeb->OSMajorVersion == 5) && (pPeb->OSMinorVersion < 1)) )
  91             *pdwMinorVersion = 1;
  92         else
  93             *pdwMinorVersion = pPeb->OSMinorVersion;
  94     }
  95
  96     if (pdwBuildNumber)
  97     {
  98         /* Windows really does this! */
  99         *pdwBuildNumber = (0xF0000000 | pPeb->OSBuildNumber);
 100     }
 101 }
 102
 103 /*
 104 * @implemented
 105 */
 106 NTSTATUS NTAPI
 107 RtlGetVersion(RTL_OSVERSIONINFOW *Info)
 108 {
 109    LONG i, MaxLength;
 110
 111    if (Info->dwOSVersionInfoSize == sizeof(RTL_OSVERSIONINFOW) ||
 112        Info->dwOSVersionInfoSize == sizeof(RTL_OSVERSIONINFOEXW))
 113    {
 114       PPEB Peb = NtCurrentPeb();
 115
 116       Info->dwMajorVersion = Peb->OSMajorVersion;
 117       Info->dwMinorVersion = Peb->OSMinorVersion;
 118       Info->dwBuildNumber = Peb->OSBuildNumber;
 119       Info->dwPlatformId = Peb->OSPlatformId;
 120       RtlZeroMemory(Info->szCSDVersion, sizeof(Info->szCSDVersion));
 121       if(((Peb->OSCSDVersion >> 8) & 0xFF) != 0)
 122       {
 123         MaxLength = (sizeof(Info->szCSDVersion) / sizeof(Info->szCSDVersion[0])) - 1;
 124         i = _snwprintf(Info->szCSDVersion,
 125                        MaxLength,
 126                        L"Service Pack %d",
 127                        ((Peb->OSCSDVersion >> 8) & 0xFF));
 128         if (i < 0)
 129         {
 130            /* null-terminate if it was overflowed */
 131            Info->szCSDVersion[MaxLength] = L'\0';
 132         }
 133       }
 134       if (Info->dwOSVersionInfoSize == sizeof(RTL_OSVERSIONINFOEXW))
 135       {
 136          RTL_OSVERSIONINFOEXW *InfoEx = (RTL_OSVERSIONINFOEXW *)Info;
 137          InfoEx->wServicePackMajor = (Peb->OSCSDVersion >> 8) & 0xFF;
 138          InfoEx->wServicePackMinor = Peb->OSCSDVersion & 0xFF;
 139          InfoEx->wSuiteMask = SharedUserData->SuiteMask & 0xFFFF;
 140          InfoEx->wProductType = SharedUserData->NtProductType;
 141       }
 142
 143       return STATUS_SUCCESS;
 144    }
 145
 146    return STATUS_INVALID_PARAMETER;
 147 }
 148
 149 /* EOF */