mirror of
https://github.com/reactos/reactos.git
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405 lines
11 KiB
C
405 lines
11 KiB
C
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: ntoskrnl/ex/locale.c
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* PURPOSE: Locale (Language) Support for the Executive
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* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
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* Eric Kohl
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* Thomas Weidenmueller (w3seek@reactos.org
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*/
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/* INCLUDES ******************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <debug.h>
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/* GLOBALS *******************************************************************/
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/* System IDs: EN_US */
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LCID PsDefaultSystemLocaleId = 0x00000409;
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LANGID PsInstallUILanguageId = LANGIDFROMLCID(0x00000409);
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/* UI/Thread IDs: Same as system */
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LANGID PsDefaultUILanguageId = 0x00000409;
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LCID PsDefaultThreadLocaleId = LANGIDFROMLCID(0x00000409);
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/* PRIVATE FUNCTIONS *********************************************************/
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NTSTATUS
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NTAPI
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ExpGetCurrentUserUILanguage(IN PWSTR MuiName,
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OUT LANGID* LanguageId)
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{
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UCHAR ValueBuffer[256];
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PKEY_VALUE_PARTIAL_INFORMATION ValueInfo;
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OBJECT_ATTRIBUTES ObjectAttributes;
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UNICODE_STRING KeyName =
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RTL_CONSTANT_STRING(L"Control Panel\\International");
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UNICODE_STRING ValueName;
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UNICODE_STRING ValueString;
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ULONG ValueLength;
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ULONG Value;
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HANDLE UserKey;
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HANDLE KeyHandle;
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NTSTATUS Status;
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PAGED_CODE();
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/* Setup the key name */
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RtlInitUnicodeString(&ValueName, MuiName);
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/* Open the use key */
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Status = RtlOpenCurrentUser(KEY_READ, &UserKey);
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if (!NT_SUCCESS(Status)) return Status;
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/* Initialize the attributes and open the key */
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InitializeObjectAttributes(&ObjectAttributes,
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&KeyName,
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OBJ_CASE_INSENSITIVE,
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UserKey,
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NULL);
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Status = ZwOpenKey(&KeyHandle, KEY_QUERY_VALUE,&ObjectAttributes);
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if (NT_SUCCESS(Status))
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{
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/* Set buffer and query the current value */
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ValueInfo = (PKEY_VALUE_PARTIAL_INFORMATION)ValueBuffer;
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Status = ZwQueryValueKey(KeyHandle,
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&ValueName,
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KeyValuePartialInformation,
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ValueBuffer,
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sizeof(ValueBuffer),
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&ValueLength);
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if (NT_SUCCESS(Status))
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{
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/* Success, is the value the right type? */
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if (ValueInfo->Type == REG_SZ)
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{
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/* It is. Initialize the data and convert it */
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RtlInitUnicodeString(&ValueString, (PWSTR)ValueInfo->Data);
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Status = RtlUnicodeStringToInteger(&ValueString, 16, &Value);
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if (NT_SUCCESS(Status))
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{
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/* Return the language */
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*LanguageId = (USHORT)Value;
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}
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}
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else
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{
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/* Fail */
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Status = STATUS_UNSUCCESSFUL;
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}
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/* Close the key */
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ZwClose(KeyHandle);
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}
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}
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/* Close the user key and return */
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ZwClose(UserKey);
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return Status;
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}
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NTSTATUS
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NTAPI
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ExpSetCurrentUserUILanguage(IN PWSTR MuiName,
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IN LANGID LanguageId)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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UNICODE_STRING KeyName = RTL_CONSTANT_STRING(L"Control Panel\\Desktop");
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UNICODE_STRING ValueName;
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WCHAR ValueBuffer[8];
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ULONG ValueLength;
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HANDLE UserHandle;
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HANDLE KeyHandle;
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NTSTATUS Status;
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PAGED_CODE();
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/* Setup the key name */
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RtlInitUnicodeString(&ValueName, MuiName);
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/* Open the use key */
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Status = RtlOpenCurrentUser(KEY_WRITE, &UserHandle);
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if (!NT_SUCCESS(Status)) return Status;
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/* Initialize the attributes */
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InitializeObjectAttributes(&ObjectAttributes,
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&KeyName,
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OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
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UserHandle,
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NULL);
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/* Open the key */
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Status = ZwOpenKey(&KeyHandle, KEY_SET_VALUE, &ObjectAttributes);
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if (NT_SUCCESS(Status))
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{
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/* Setup the value name */
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ValueLength = swprintf(ValueBuffer,
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L"%04lX",
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(ULONG)LanguageId);
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/* Set the length for the call and set the value */
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ValueLength = (ValueLength + 1) * sizeof(WCHAR);
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Status = ZwSetValueKey(KeyHandle,
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&ValueName,
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0,
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REG_SZ,
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ValueBuffer,
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ValueLength);
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/* Close the handle for this key */
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ZwClose(KeyHandle);
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}
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/* Close the user key and return status */
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ZwClose(UserHandle);
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return Status;
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}
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/* PUBLIC FUNCTIONS **********************************************************/
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NTSTATUS
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NTAPI
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NtQueryDefaultLocale(IN BOOLEAN UserProfile,
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OUT PLCID DefaultLocaleId)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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PAGED_CODE();
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/* Enter SEH for probing */
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_SEH2_TRY
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{
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/* Check if we came from user mode */
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if (KeGetPreviousMode() != KernelMode)
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{
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/* Probe the language ID */
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ProbeForWriteLangid(DefaultLocaleId);
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}
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/* Check if we have a user profile */
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if (UserProfile)
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{
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/* Return thread locale */
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*DefaultLocaleId = PsDefaultThreadLocaleId;
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}
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else
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{
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/* Return system locale */
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*DefaultLocaleId = PsDefaultSystemLocaleId;
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}
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}
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_SEH2_EXCEPT(ExSystemExceptionFilter())
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{
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/* Get exception code */
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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/* Return status */
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return Status;
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}
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NTSTATUS
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NTAPI
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NtSetDefaultLocale(IN BOOLEAN UserProfile,
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IN LCID DefaultLocaleId)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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UNICODE_STRING KeyName;
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UNICODE_STRING ValueName;
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HANDLE KeyHandle;
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ULONG ValueLength;
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WCHAR ValueBuffer[20];
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HANDLE UserKey = NULL;
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NTSTATUS Status;
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PAGED_CODE();
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/* Check if we have a profile */
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if (UserProfile)
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{
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/* Open the user's key */
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Status = RtlOpenCurrentUser(KEY_WRITE, &UserKey);
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if (!NT_SUCCESS(Status)) return(Status);
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/* Initialize the registry location */
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RtlInitUnicodeString(&KeyName, L"Control Panel\\International");
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RtlInitUnicodeString(&ValueName, L"Locale");
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}
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else
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{
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/* Initialize the system registry location */
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RtlInitUnicodeString(&KeyName,
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L"\\Registry\\Machine\\System\\CurrentControlSet"
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L"\\Control\\Nls\\Language");
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RtlInitUnicodeString(&ValueName, L"Default");
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}
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/* Initailize the object attributes */
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InitializeObjectAttributes(&ObjectAttributes,
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&KeyName,
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OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
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UserKey,
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NULL);
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/* Check if we don' thave a default locale yet */
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if (!DefaultLocaleId)
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{
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DPRINT1("TODO\n");
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Status = STATUS_SUCCESS;
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ASSERT(FALSE);
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}
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else
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{
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/* Otherwise, open the key */
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Status = ZwOpenKey(&KeyHandle, KEY_SET_VALUE, &ObjectAttributes);
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if (NT_SUCCESS(Status))
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{
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/* Check if we had a profile */
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if (UserProfile)
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{
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/* Fill in the buffer */
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ValueLength = swprintf(ValueBuffer,
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L"%08lx",
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(ULONG)DefaultLocaleId);
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}
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else
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{
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/* Fill in the buffer */
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ValueLength = swprintf(ValueBuffer,
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L"%04lx",
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(ULONG)DefaultLocaleId & 0xFFFF);
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}
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/* Set the length for the registry call */
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ValueLength = (ValueLength + 1) * sizeof(WCHAR);
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/* Now write the actual value */
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Status = ZwSetValueKey(KeyHandle,
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&ValueName,
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0,
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REG_SZ,
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ValueBuffer,
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ValueLength);
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/* And close the key */
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ZwClose(KeyHandle);
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}
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}
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/* Close the user key */
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ZwClose(UserKey);
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/* Check for success */
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if (NT_SUCCESS(Status))
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{
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/* Check if it was for a user */
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if (UserProfile)
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{
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/* Set thread locale */
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PsDefaultThreadLocaleId = DefaultLocaleId;
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}
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else
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{
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/* Set system locale */
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PsDefaultSystemLocaleId = DefaultLocaleId;
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}
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}
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/* Return status */
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return Status;
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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NtQueryInstallUILanguage(OUT LANGID* LanguageId)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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PAGED_CODE();
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/* Enter SEH for probing */
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_SEH2_TRY
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{
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/* Check if we came from user mode */
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if (KeGetPreviousMode() != KernelMode)
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{
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/* Probe the Language ID */
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ProbeForWriteLangid(LanguageId);
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}
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/* Return it */
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*LanguageId = PsInstallUILanguageId;
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}
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_SEH2_EXCEPT(ExSystemExceptionFilter())
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{
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/* Get exception code */
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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/* Return status */
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return Status;
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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NtQueryDefaultUILanguage(OUT LANGID* LanguageId)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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PAGED_CODE();
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/* Enter SEH for probing */
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_SEH2_TRY
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{
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/* Check if we came from user mode */
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if (KeGetPreviousMode() != KernelMode)
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{
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/* Probe the Language ID */
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ProbeForWriteLangid(LanguageId);
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}
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/* Call the executive helper routine */
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Status = ExpGetCurrentUserUILanguage(L"MultiUILanguageId", LanguageId);
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if (NT_SUCCESS(Status))
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{
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/* Success, return the language */
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*LanguageId = PsInstallUILanguageId;
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}
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}
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_SEH2_EXCEPT(ExSystemExceptionFilter())
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{
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/* Get exception code */
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Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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/* Return status */
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return Status;
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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NtSetDefaultUILanguage(IN LANGID LanguageId)
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{
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PAGED_CODE();
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/* Check if we don't have a default yet */
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if (!LanguageId)
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{
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/* FIXME */
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DPRINT1("TODO\n");
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ASSERT(FALSE);
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}
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/* Otherwise, call the internal routine */
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return ExpSetCurrentUserUILanguage(L"MUILanguagePending", LanguageId);
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}
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/* EOF */
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