850 lines
20 KiB
C
850 lines
20 KiB
C
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#include "precomp.h"
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#pragma hdrstop
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//
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// Global variables defined here
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//
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//
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// TargetNativeLangID : this is native language ID of running system
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//
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LANGID TargetNativeLangID;
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//
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// SourceNativeLangID : this is native language ID of new NT you want to install
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//
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LANGID SourceNativeLangID;
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//
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// IsLanguageMatched : if source and target language are matched (or compatible)
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//
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// 1. if SourceNativeLangID == TargetNativeLangID
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//
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// 2. if SourceNativeLangID's alternative ID == TargetNativeLangID
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//
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BOOL IsLanguageMatched;
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typedef struct _tagLANGINFO {
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LANGID LangID;
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INT Count;
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} LANGINFO,*PLANGINFO;
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BOOL
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TrustedDefaultUserLocale(
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HINF Inf,
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LANGID LangID);
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BOOL
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MySetupapiGetIntField(
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IN PINFCONTEXT Context,
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IN DWORD FieldIndex,
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OUT PINT IntegerValue,
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IN int Base
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);
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BOOL
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CALLBACK
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EnumLangProc(
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HANDLE hModule, // resource-module handle
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LPCTSTR lpszType, // pointer to resource type
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LPCTSTR lpszName, // pointer to resource name
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WORD wIDLanguage, // resource language identifier
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LONG_PTR lParam // application-defined parameter
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)
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/*++
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Routine Description:
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Callback that counts versions stamps.
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Arguments:
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Details of version enumerated version stamp. (Ignore.)
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Return Value:
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Indirectly thru lParam: count, langID
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--*/
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{
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PLANGINFO LangInfo;
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LangInfo = (PLANGINFO) lParam;
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LangInfo->Count++;
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//
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// for localized build contains multiple resource,
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// it usually contains 0409 as backup lang.
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//
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// if LangInfo->LangID != 0 means we already assigned an ID to it
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//
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// so when wIDLanguage == 0x409, we keep the one we got from last time
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//
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if ((wIDLanguage == 0x409) && (LangInfo->LangID != 0)) {
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return TRUE;
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}
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LangInfo->LangID = wIDLanguage;
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return TRUE; // continue enumeration
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}
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LANGID
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GetNTDLLNativeLangID()
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/*++
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Routine Description:
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This function is designed specifically for getting native lang of ntdll.dll
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This is not a generic function to get other module's language
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the assumption is:
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1. if only one language in resource then return this lang
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2. if two languages in resource then return non-US language
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3. if more than two languages, it's invalid in our case, but returns the last one.
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Arguments:
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None
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Return Value:
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Native lang ID in ntdll.dll
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--*/
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{
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LPCTSTR Type = (LPCTSTR) RT_VERSION;
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LPCTSTR Name = (LPCTSTR) 1;
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LANGINFO LangInfo;
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ZeroMemory(&LangInfo,sizeof(LangInfo));
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EnumResourceLanguages(
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GetModuleHandle(TEXT("ntdll.dll")),
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Type,
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Name,
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EnumLangProc,
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(LONG_PTR) &LangInfo
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);
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if ((LangInfo.Count > 2) || (LangInfo.Count < 1) ) {
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//
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// put error log here
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//
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// so far, for NT 3.51, only JPN has two language resources
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}
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return LangInfo.LangID;
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}
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BOOL IsHongKongVersion()
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/*++
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Routine Description:
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Try to identify HongKong NT 4.0
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It based on:
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NTDLL's language is English and build is 1381 and
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pImmReleaseContext return TRUE
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Arguments:
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Return Value:
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Language ID of running system
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--*/
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{
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HMODULE hMod;
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BOOL bRet=FALSE;
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typedef BOOL (*IMMRELEASECONTEXT) (HWND,HANDLE);
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IMMRELEASECONTEXT pImmReleaseContext;
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LANGID TmpID = GetNTDLLNativeLangID();
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if ((OsVersion.dwBuildNumber == 1381) &&
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(TmpID == 0x0409)){
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hMod = LoadLibrary(TEXT("imm32.dll"));
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if (hMod) {
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pImmReleaseContext = (IMMRELEASECONTEXT) GetProcAddress(hMod,"ImmReleaseContext");
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if (pImmReleaseContext) {
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bRet = pImmReleaseContext(NULL,NULL);
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}
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FreeLibrary(hMod);
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}
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}
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return (bRet);
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}
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LANGID GetDefaultUserLangID()
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{
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LONG dwErr;
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HKEY hkey;
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DWORD dwSize;
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CHAR buffer[512];
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LANGID langid = 0;
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dwErr = RegOpenKeyEx( HKEY_USERS,
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TEXT(".DEFAULT\\Control Panel\\International"),
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0,
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KEY_READ,
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&hkey );
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if( dwErr == ERROR_SUCCESS ) {
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dwSize = sizeof(buffer);
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dwErr = RegQueryValueExA(hkey,
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"Locale",
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NULL, //reserved
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NULL, //type
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buffer,
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&dwSize );
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if(dwErr == ERROR_SUCCESS) {
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langid = LANGIDFROMLCID(strtoul(buffer,NULL,16));
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}
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RegCloseKey(hkey);
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}
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return langid;
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}
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LANGID
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GetTargetNativeLangID(
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HINF Inf)
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/*++
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Routine Description:
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Applies different rules to different platforms
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NT
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build number <= 1840 : check ntdll's language,
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we scaned all 3.51's ntdll on boneyard\intl,
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it looks like we can trust them.
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build number > 1840 : user MUI language
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Win9x
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use default user's resource language
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Arguments:
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Return Value:
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Language ID of running system
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--*/
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{
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LONG dwErr;
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HKEY hkey;
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DWORD dwSize;
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CHAR buffer[512];
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LANGID rcLang;
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LANGID langid = 0;
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// Find out if we are running on NT or WIN9X
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if( ISNT() ) {
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//
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// We're on NT, but which version? GetSystemDefaultUILanguage() was broke until 1840...
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//
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if( OsVersion.dwBuildNumber > 1840 ) {
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FARPROC NT5API;
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//
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// Use the API to find out our locale.
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//
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if( NT5API = GetProcAddress( GetModuleHandle(TEXT("kernel32.dll")), "GetSystemDefaultUILanguage") ) {
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rcLang = (LANGID)NT5API();
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//
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// need to convert decimal to hex, LANGID to chr.
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//
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langid = rcLang;
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}
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} else {
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//
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// by looking into \\boneyard\intl, almost every ntdll.dll marked correct lang ID
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// so get langID from ntdll.dll
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//
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langid = GetNTDLLNativeLangID();
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if (langid == 0x0409) {
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if (IsHongKongVersion()) {
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langid = 0x0C04;
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} else {
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//
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// if default user's locale is in [TrustedDefaultUserLocale] in intl.inf
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//
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// then this is a backdoor for some localized build that its ntdll.dll marked
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//
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// as English but can't be upgrade by US version.
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//
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LANGID DefaultUserLangID = GetDefaultUserLangID();
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if (DefaultUserLangID &&
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TrustedDefaultUserLocale(Inf,DefaultUserLangID)) {
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langid = DefaultUserLangID;
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}
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}
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}
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}
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} else {
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//
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// We're on Win9x.
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//
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dwErr = RegOpenKeyEx( HKEY_USERS,
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TEXT(".Default\\Control Panel\\desktop\\ResourceLocale"),
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0,
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KEY_READ,
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&hkey );
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if (dwErr == ERROR_SUCCESS) {
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dwSize = sizeof(buffer);
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dwErr = RegQueryValueExA( hkey,
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"",
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NULL, //reserved
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NULL, //type
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buffer,
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&dwSize );
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if(dwErr == ERROR_SUCCESS) {
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langid = LANGIDFROMLCID(strtoul(buffer,NULL,16));
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}
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RegCloseKey(hkey);
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}
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if ( dwErr != ERROR_SUCCESS ) {
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// Check HKLM\System\CurrentControlSet\Control\Nls\Locale
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dwErr = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
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TEXT("System\\CurrentControlSet\\Control\\Nls\\Locale"),
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0,
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KEY_READ,
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&hkey );
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if (dwErr == ERROR_SUCCESS) {
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dwSize = sizeof(buffer);
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dwErr = RegQueryValueExA( hkey,
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"",
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NULL, //reserved
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NULL, //type
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buffer,
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&dwSize );
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if (dwErr == ERROR_SUCCESS) {
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langid = LANGIDFROMLCID(strtoul(buffer,NULL,16));
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}
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RegCloseKey(hkey);
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}
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}
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}
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return (langid);
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}
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LANGID
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GetSourceNativeLangID(
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HINF Inf)
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/*++
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Routine Description:
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[DefaultValues]
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Locale = xxxx
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every localized build has it's own Locale in intl.inf,
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so we use this value to identify source languag
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Arguments:
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Return Value:
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Language ID of source
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--*/
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{
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INFCONTEXT InfContext;
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LANGID langid = 0;
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INT i=0;
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if (SetupapiFindFirstLine( Inf,
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TEXT("DefaultValues"),
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TEXT("Locale"),
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&InfContext )) {
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if (MySetupapiGetIntField( &InfContext, 1, &i, 16 )) {
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langid = (LANGID)i;
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}
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}
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return langid;
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}
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DWORD
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GetOSMajorID(
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HINF Inf)
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{
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INFCONTEXT InfContext;
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DWORD MajorId;
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INT i=0;
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MajorId = 0;
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if (SetupapiFindFirstLine( Inf,
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TEXT("OSVersionMajorID"),
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NULL,
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&InfContext )) {
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do {
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if (MySetupapiGetIntField( &InfContext, 2, &i, 10 )) {
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if (((ULONG)i) != OsVersion.dwPlatformId) {
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continue;
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}
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}
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if (MySetupapiGetIntField( &InfContext, 3, &i, 10 )) {
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if (((ULONG)i) != OsVersion.dwMajorVersion) {
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continue;
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}
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}
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if (MySetupapiGetIntField( &InfContext, 4, &i, 10 )) {
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if (((ULONG)i) != OsVersion.dwMinorVersion) {
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continue;
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}
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}
|
||
|
|
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 1, &i, 16 )) {
|
||
|
|
MajorId = (DWORD)i;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
} while ( SetupapiFindNextLine(&InfContext,&InfContext));
|
||
|
|
}
|
||
|
|
|
||
|
|
return MajorId;
|
||
|
|
}
|
||
|
|
|
||
|
|
DWORD
|
||
|
|
GetOSMinorID(
|
||
|
|
HINF Inf)
|
||
|
|
{
|
||
|
|
TCHAR Field[128];
|
||
|
|
INFCONTEXT InfContext;
|
||
|
|
DWORD MinorId;
|
||
|
|
INT i = 0;
|
||
|
|
|
||
|
|
MinorId = 0;
|
||
|
|
|
||
|
|
if (SetupapiFindFirstLine( Inf,
|
||
|
|
TEXT("OSVVersionMinorID"),
|
||
|
|
NULL,
|
||
|
|
&InfContext )) {
|
||
|
|
|
||
|
|
do {
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 2, &i, 10 )) {
|
||
|
|
if (((ULONG)i) != OsVersion.dwPlatformId) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 3, &i, 10 )) {
|
||
|
|
if (((ULONG)i) != OsVersion.dwMajorVersion) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 4, &i, 10 )) {
|
||
|
|
if (((ULONG)i) != OsVersion.dwMinorVersion) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 5, &i, 10 )) {
|
||
|
|
if (((ULONG)i) != OsVersion.dwBuildNumber) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (SetupapiGetStringField( &InfContext, 6, Field, (sizeof(Field)/sizeof(TCHAR)), NULL )) {
|
||
|
|
|
||
|
|
if (lstrcmpi(Field,OsVersion.szCSDVersion) != 0) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 1, &i, 16 )) {
|
||
|
|
MinorId = (DWORD)i;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
} while ( SetupapiFindNextLine(&InfContext,&InfContext));
|
||
|
|
}
|
||
|
|
|
||
|
|
return MinorId;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
TrustedDefaultUserLocale(
|
||
|
|
HINF Inf,
|
||
|
|
LANGID LangID)
|
||
|
|
{
|
||
|
|
TCHAR LangIDStr[9];
|
||
|
|
LPCTSTR Field;
|
||
|
|
INFCONTEXT InfContext;
|
||
|
|
INT i = 0;
|
||
|
|
|
||
|
|
wsprintf(LangIDStr,TEXT("0000%04X"),LangID);
|
||
|
|
if (SetupapiFindFirstLine( Inf,
|
||
|
|
TEXT("TrustedDefaultUserLocale"),
|
||
|
|
LangIDStr,
|
||
|
|
&InfContext )) {
|
||
|
|
do {
|
||
|
|
//
|
||
|
|
// if in excluded field, this is not what we want
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 3, &i, 16 )) {
|
||
|
|
if (((ULONG)i) & GetOSMinorID(Inf)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// if it is in minor version list, we got what we want
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 2, &i, 16 )) {
|
||
|
|
|
||
|
|
if (((ULONG)i) & GetOSMinorID(Inf)) {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// or if it is in major version list, we also got what we want
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 1, &i, 16 )) {
|
||
|
|
if (((ULONG)i) & GetOSMajorID(Inf)) {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} while ( SetupapiFindNextLine(&InfContext,&InfContext));
|
||
|
|
}
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
IsInExcludeList(
|
||
|
|
HINF Inf,
|
||
|
|
LANGID LangID)
|
||
|
|
{
|
||
|
|
TCHAR LangIDStr[9];
|
||
|
|
LPCTSTR Field;
|
||
|
|
INFCONTEXT InfContext;
|
||
|
|
INT i = 0;
|
||
|
|
|
||
|
|
wsprintf(LangIDStr,TEXT("0000%04X"),LangID);
|
||
|
|
if (SetupapiFindFirstLine( Inf,
|
||
|
|
TEXT("ExcludeSourceLocale"),
|
||
|
|
LangIDStr,
|
||
|
|
&InfContext )) {
|
||
|
|
do {
|
||
|
|
//
|
||
|
|
// if in excluded field, this is not what we want
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 3, &i, 16 )) {
|
||
|
|
if (((ULONG)i) & GetOSMinorID(Inf)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// if it is in minor version list, we got what we want
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 2, &i, 16 )) {
|
||
|
|
|
||
|
|
if (((ULONG)i) & GetOSMinorID(Inf)) {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// or if it is in major version list, we also got what we want
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 1, &i, 16 )) {
|
||
|
|
if (((ULONG)i) & GetOSMajorID(Inf)) {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} while ( SetupapiFindNextLine(&InfContext,&InfContext));
|
||
|
|
}
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
CheckLanguageVersion(
|
||
|
|
HINF Inf,
|
||
|
|
LANGID SourceLangID,
|
||
|
|
LANGID TargetLangID)
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Check if the language of source NT is same as target NT or ,at least,
|
||
|
|
|
||
|
|
compatibile
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
Inf handle of intl.inf
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
TRUE They are same or compatibile
|
||
|
|
FALSE They are different
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
TCHAR TargetLangIDStr[9];
|
||
|
|
|
||
|
|
LANGID SrcLANGID;
|
||
|
|
LANGID DstLANGID;
|
||
|
|
|
||
|
|
LPCTSTR Field;
|
||
|
|
INFCONTEXT InfContext;
|
||
|
|
INT i = 0;
|
||
|
|
|
||
|
|
//
|
||
|
|
// If either one is 0, allow the upgrade. This is Windows 2000 Beta3 behavior.
|
||
|
|
//
|
||
|
|
if (SourceLangID == 0 || TargetLangID == 0) {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (SourceLangID == TargetLangID) {
|
||
|
|
//
|
||
|
|
// special case, for Middle East version, NT5 is localized build but NT4 is not
|
||
|
|
//
|
||
|
|
// they don't allow NT5 localized build to upgrade NT4, although they are same language
|
||
|
|
//
|
||
|
|
// so we need to exclude these
|
||
|
|
//
|
||
|
|
return ((IsInExcludeList(Inf, SourceLangID) == FALSE));
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// if Src != Dst, then we need to look up inf file to see
|
||
|
|
//
|
||
|
|
// if we can open a backdoor for Target language
|
||
|
|
//
|
||
|
|
|
||
|
|
//
|
||
|
|
// use TargetLangID as key to find alternative SourceLangID
|
||
|
|
//
|
||
|
|
|
||
|
|
wsprintf(TargetLangIDStr,TEXT("0000%04X"),TargetLangID);
|
||
|
|
|
||
|
|
if (SetupapiFindFirstLine( Inf,
|
||
|
|
TEXT("AlternativeSourceLocale"),
|
||
|
|
TargetLangIDStr,
|
||
|
|
&InfContext )) {
|
||
|
|
|
||
|
|
do {
|
||
|
|
//
|
||
|
|
// Check if we found alternative locale
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField(&InfContext, 1, &i, 16)) {
|
||
|
|
|
||
|
|
LANGID AltSourceLangID = LANGIDFROMLCID(i);
|
||
|
|
|
||
|
|
if (SourceLangID != AltSourceLangID) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// We are here if we found alternative source lang,
|
||
|
|
//
|
||
|
|
// now check the version criteria
|
||
|
|
//
|
||
|
|
|
||
|
|
//
|
||
|
|
// if in excluded list, this is not what we want
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 4, &i, 16 )) {
|
||
|
|
if (((ULONG)i) & GetOSMinorID(Inf)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// if it is in minor version list, we got what we want
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 3, &i, 16 )) {
|
||
|
|
|
||
|
|
if (((ULONG)i) & GetOSMinorID(Inf)) {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// or if it is in major version list, we also got what we want
|
||
|
|
//
|
||
|
|
if (MySetupapiGetIntField( &InfContext, 2, &i, 16 )) {
|
||
|
|
if (((ULONG)i) & GetOSMajorID(Inf)) {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} while ( SetupapiFindNextMatchLine (&InfContext,TargetLangIDStr,&InfContext));
|
||
|
|
}
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL InitLanguageDetection(LPCTSTR SourcePath,LPCTSTR InfFile)
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Initialize language detection and put the result in 3 global variables
|
||
|
|
|
||
|
|
SourceNativeLangID - LANGID of Source (NT is going to be installed)
|
||
|
|
|
||
|
|
TargetNativeLangID - LANGID of Target (OS system which is running)
|
||
|
|
|
||
|
|
IsLanguageMatched - If language is not matched, then blocks upgrade
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
SourcePath directory path of INF file
|
||
|
|
|
||
|
|
InfFile INF file name
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
TRUE init correctly
|
||
|
|
FALSE init failed
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
HINF Inf;
|
||
|
|
TCHAR InfName[MAX_PATH];
|
||
|
|
|
||
|
|
FindPathToInstallationFile( InfFile, InfName, MAX_PATH );
|
||
|
|
|
||
|
|
Inf = SetupapiOpenInfFile( InfName, NULL, INF_STYLE_WIN4, NULL );
|
||
|
|
|
||
|
|
if (Inf == INVALID_HANDLE_VALUE) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Init Global Variables
|
||
|
|
//
|
||
|
|
|
||
|
|
SourceNativeLangID = GetSourceNativeLangID(Inf);
|
||
|
|
|
||
|
|
TargetNativeLangID = GetTargetNativeLangID(Inf);
|
||
|
|
|
||
|
|
IsLanguageMatched = CheckLanguageVersion(Inf,SourceNativeLangID,TargetNativeLangID);
|
||
|
|
|
||
|
|
SetupapiCloseInfFile(Inf);
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
MySetupapiGetIntField(
|
||
|
|
IN PINFCONTEXT Context,
|
||
|
|
IN DWORD FieldIndex,
|
||
|
|
OUT PINT IntegerValue,
|
||
|
|
IN int Base
|
||
|
|
)
|
||
|
|
/*
|
||
|
|
Routine to get a field from an INF file and convert to an integer. The reason
|
||
|
|
we have this and don't use Setupapi!SetupGetIntField is because intl.inf mixes and matches
|
||
|
|
numeric conventions. It may use Hex values without a 0x notation and this is an attempt
|
||
|
|
to clean that up without modifying the INF. With this change we also won't link to internal Setupapi routines
|
||
|
|
like pSetupGetField.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
PINFCONTEXT : - Pointer to setupapi INFCONTEXT structure
|
||
|
|
FieldIndex : - 1-based index for fields, 0 for key itself.
|
||
|
|
IntegerValue : - Converted Integer value that is returned by the function
|
||
|
|
Base : - Base used for string to integer conversion.
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
TRUE - If we could convert the returned string to an integer else,
|
||
|
|
FALSE
|
||
|
|
|
||
|
|
|
||
|
|
*/
|
||
|
|
{
|
||
|
|
DWORD Size = 0;
|
||
|
|
PTSTR Field = NULL;
|
||
|
|
BOOL Ret = FALSE;
|
||
|
|
|
||
|
|
if( IntegerValue == NULL )
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
if (Context) {
|
||
|
|
|
||
|
|
if( SetupapiGetStringField( Context, FieldIndex, NULL, 0, &Size )){
|
||
|
|
|
||
|
|
if (Field = MALLOC( Size * sizeof( TCHAR))){
|
||
|
|
|
||
|
|
if( SetupapiGetStringField( Context, FieldIndex, Field, Size, NULL )){
|
||
|
|
|
||
|
|
*IntegerValue = _tcstoul( Field, NULL, Base );
|
||
|
|
Ret = TRUE;
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if( Field )
|
||
|
|
FREE( Field );
|
||
|
|
|
||
|
|
return Ret;
|
||
|
|
}
|
||
|
|
|