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GetVersion, GetVersionExA and GetVersionExW reimplemented correctly (almost)
svn path=/trunk/; revision=4095
This commit is contained in:
KJK::Hyperion
parent
c2e49604ca
commit
035dcd8224
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@ -23,3 +23,4 @@
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#include <napi/npipe.h>
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#include <ntos/minmax.h>
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#include <csrss/csrss.h>
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#include <reactos/buildno.h>
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@ -1,4 +1,4 @@
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/* $Id: env.c,v 1.18 2003/01/15 21:24:34 chorns Exp $
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/* $Id: env.c,v 1.19 2003/02/01 19:58:17 hyperion Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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@ -211,48 +211,185 @@ DWORD
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STDCALL
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GetVersion(VOID)
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{
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DWORD Version = 0;
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OSVERSIONINFO VersionInformation;
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GetVersionExW(&VersionInformation);
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PPEB pPeb = NtCurrentPeb();
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DWORD nVersion;
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Version |= ( VersionInformation.dwMajorVersion << 8 );
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Version |= VersionInformation.dwMinorVersion;
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nVersion = MAKEWORD(pPeb->OSMajorVersion, pPeb->OSMinorVersion);
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Version |= ( VersionInformation.dwPlatformId << 16 );
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/* behave consistently when posing as another operating system */
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/* build number */
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if(pPeb->OSPlatformId != VER_PLATFORM_WIN32_WINDOWS)
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nVersion |= ((DWORD)(pPeb->OSBuildNumber)) << 16;
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/* non-NT platform flag */
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if(pPeb->OSPlatformId != VER_PLATFORM_WIN32_NT)
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nVersion |= 0x80000000;
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return Version;
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return nVersion;
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}
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WINBOOL
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STDCALL
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GetVersionExW(
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LPOSVERSIONINFO lpVersionInformation
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LPOSVERSIONINFOW lpVersionInformation
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)
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{
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lpVersionInformation->dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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lpVersionInformation->dwMajorVersion = 4;
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lpVersionInformation->dwMinorVersion = 0;
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lpVersionInformation->dwBuildNumber = 12;
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lpVersionInformation->dwPlatformId = VER_PLATFORM_WIN32_NT;
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lstrcpyW((WCHAR *)lpVersionInformation->szCSDVersion,L"Ariadne was here...");
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return TRUE;
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PPEB pPeb = NtCurrentPeb();
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/* TODO: move this into RtlGetVersion */
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switch(lpVersionInformation->dwOSVersionInfoSize)
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{
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case sizeof(OSVERSIONINFOEXW):
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{
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LPOSVERSIONINFOEXW lpVersionInformationEx =
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(LPOSVERSIONINFOEXW)lpVersionInformation;
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lpVersionInformationEx->wServicePackMajor = pPeb->SPMajorVersion;
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lpVersionInformationEx->wServicePackMinor = pPeb->SPMinorVersion;
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/* TODO: read from the KUSER_SHARED_DATA */
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lpVersionInformationEx->wSuiteMask = 0;
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/* TODO: call RtlGetNtProductType */
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lpVersionInformationEx->wProductType = 0;
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/* ??? */
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lpVersionInformationEx->wReserved = 0;
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/* fall through */
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}
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case sizeof(OSVERSIONINFOW):
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{
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lpVersionInformation->dwMajorVersion = pPeb->OSMajorVersion;
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lpVersionInformation->dwMinorVersion = pPeb->OSMinorVersion;
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lpVersionInformation->dwBuildNumber = pPeb->OSBuildNumber;
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lpVersionInformation->dwPlatformId = pPeb->OSPlatformId;
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/* version string is "ReactOS x.y.z" */
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wcsncpy
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(
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lpVersionInformation->szCSDVersion,
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L"ReactOS " KERNEL_VERSION_STR,
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sizeof(lpVersionInformation->szCSDVersion) / sizeof(WCHAR)
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);
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/* null-terminate, just in case */
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lpVersionInformation->szCSDVersion
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[
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sizeof(lpVersionInformation->szCSDVersion) / sizeof(WCHAR) - 1
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] = 0;
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break;
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}
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default:
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{
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/* unknown version information revision */
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SetLastError(ERROR_INSUFFICIENT_BUFFER);
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return FALSE;
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}
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}
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return TRUE;
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}
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WINBOOL
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STDCALL
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GetVersionExA(
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LPOSVERSIONINFO lpVersionInformation
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LPOSVERSIONINFOA lpVersionInformation
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)
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{
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lpVersionInformation->dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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lpVersionInformation->dwMajorVersion = 4;
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lpVersionInformation->dwMinorVersion = 0;
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lpVersionInformation->dwBuildNumber = 12;
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lpVersionInformation->dwPlatformId = VER_PLATFORM_WIN32_NT;
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lstrcpyA((char *)lpVersionInformation->szCSDVersion,"ReactOs Pre-Alpha");
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return TRUE;
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NTSTATUS nErrCode;
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OSVERSIONINFOEXW oviVerInfo;
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LPOSVERSIONINFOEXA lpVersionInformationEx;
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/* UNICODE_STRING descriptor of the Unicode version string */
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UNICODE_STRING wstrVerStr =
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{
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/*
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gives extra work to RtlUnicodeStringToAnsiString, but spares us an
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RtlInitUnicodeString round
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*/
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sizeof(((LPOSVERSIONINFOW)NULL)->szCSDVersion) *
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sizeof(((LPOSVERSIONINFOW)NULL)->szCSDVersion[0]) -
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1,
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sizeof(((LPOSVERSIONINFOW)NULL)->szCSDVersion) *
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sizeof(((LPOSVERSIONINFOW)NULL)->szCSDVersion[0]),
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oviVerInfo.szCSDVersion
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};
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/* ANSI_STRING descriptor of the ANSI version string buffer */
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ANSI_STRING strVerStr =
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{
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0,
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sizeof(((LPOSVERSIONINFOA)NULL)->szCSDVersion) *
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sizeof(((LPOSVERSIONINFOA)NULL)->szCSDVersion[0]) -
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1,
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lpVersionInformation->szCSDVersion
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};
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switch(lpVersionInformation->dwOSVersionInfoSize)
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{
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case sizeof(OSVERSIONINFOEXA):
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{
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oviVerInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
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break;
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}
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case sizeof(OSVERSIONINFOA):
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{
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oviVerInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
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break;
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}
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default:
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{
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/* unknown version information revision */
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SetLastError(ERROR_INSUFFICIENT_BUFFER);
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return FALSE;
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}
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}
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if(!GetVersionExW((LPOSVERSIONINFOW)&oviVerInfo))
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return FALSE;
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/* null-terminate, just in case */
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oviVerInfo.szCSDVersion
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[
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sizeof(((LPOSVERSIONINFOW)NULL)->szCSDVersion) *
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sizeof(((LPOSVERSIONINFOW)NULL)->szCSDVersion[0]) -
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1
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] = 0;
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/* convert the version string */
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nErrCode = RtlUnicodeStringToAnsiString(&strVerStr, &wstrVerStr, FALSE);
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if(!NT_SUCCESS(nErrCode))
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{
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/* failure */
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SetLastErrorByStatus(nErrCode);
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return FALSE;
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}
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/* copy the fields */
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lpVersionInformation->dwMajorVersion = oviVerInfo.dwMajorVersion;
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lpVersionInformation->dwMinorVersion = oviVerInfo.dwMinorVersion;
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lpVersionInformation->dwBuildNumber = oviVerInfo.dwBuildNumber;
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lpVersionInformation->dwPlatformId = oviVerInfo.dwPlatformId;
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if(lpVersionInformation->dwOSVersionInfoSize < sizeof(OSVERSIONINFOEXA))
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/* success */
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return TRUE;
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/* copy the extended fields */
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lpVersionInformationEx = (LPOSVERSIONINFOEXA)lpVersionInformation;
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lpVersionInformationEx->wServicePackMajor = oviVerInfo.wServicePackMajor;
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lpVersionInformationEx->wServicePackMinor = oviVerInfo.wServicePackMinor;
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lpVersionInformationEx->wSuiteMask = oviVerInfo.wSuiteMask;
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lpVersionInformationEx->wProductType = oviVerInfo.wProductType;
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lpVersionInformationEx->wReserved = oviVerInfo.wReserved;
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/* success */
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return TRUE;
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}
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