forked from svn2github/reactos
/
coninput.c
800 lines (685 loc) · 27.8 KB
/
coninput.c
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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Console Server DLL
* FILE: consrv/coninput.c
* PURPOSE: Console Input functions
* PROGRAMMERS: Jeffrey Morlan
* Hermes Belusca-Maito (hermes.belusca@sfr.fr)
*/
/* INCLUDES *******************************************************************/
#include "consrv.h"
#define NDEBUG
#include <debug.h>
/* GLOBALS ********************************************************************/
#define ConSrvGetInputBuffer(ProcessData, Handle, Ptr, Access, LockConsole) \
ConSrvGetObject((ProcessData), (Handle), (PCONSOLE_IO_OBJECT*)(Ptr), NULL, \
(Access), (LockConsole), INPUT_BUFFER)
#define ConSrvGetInputBufferAndHandleEntry(ProcessData, Handle, Ptr, Entry, Access, LockConsole) \
ConSrvGetObject((ProcessData), (Handle), (PCONSOLE_IO_OBJECT*)(Ptr), (Entry), \
(Access), (LockConsole), INPUT_BUFFER)
#define ConSrvReleaseInputBuffer(Buff, IsConsoleLocked) \
ConSrvReleaseObject(&(Buff)->Header, (IsConsoleLocked))
/*
* From MSDN:
* "The lpMultiByteStr and lpWideCharStr pointers must not be the same.
* If they are the same, the function fails, and GetLastError returns
* ERROR_INVALID_PARAMETER."
*/
#define ConsoleInputUnicodeToAnsiChar(Console, dChar, sWChar) \
ASSERT((ULONG_PTR)dChar != (ULONG_PTR)sWChar); \
WideCharToMultiByte((Console)->InputCodePage, 0, (sWChar), 1, (dChar), 1, NULL, NULL)
#define ConsoleInputAnsiToUnicodeChar(Console, dWChar, sChar) \
ASSERT((ULONG_PTR)dWChar != (ULONG_PTR)sChar); \
MultiByteToWideChar((Console)->InputCodePage, 0, (sChar), 1, (dWChar), 1)
typedef struct _GET_INPUT_INFO
{
PCSR_THREAD CallingThread; // The thread which called the input API.
PVOID HandleEntry; // The handle data associated with the wait thread.
PCONSOLE_INPUT_BUFFER InputBuffer; // The input buffer corresponding to the handle.
} GET_INPUT_INFO, *PGET_INPUT_INFO;
/* PRIVATE FUNCTIONS **********************************************************/
static VOID
ConioInputEventToAnsi(PCONSOLE Console, PINPUT_RECORD InputEvent)
{
if (InputEvent->EventType == KEY_EVENT)
{
WCHAR UnicodeChar = InputEvent->Event.KeyEvent.uChar.UnicodeChar;
InputEvent->Event.KeyEvent.uChar.UnicodeChar = 0;
ConsoleInputUnicodeToAnsiChar(Console,
&InputEvent->Event.KeyEvent.uChar.AsciiChar,
&UnicodeChar);
}
}
static VOID
ConioInputEventToUnicode(PCONSOLE Console, PINPUT_RECORD InputEvent)
{
if (InputEvent->EventType == KEY_EVENT)
{
CHAR AsciiChar = InputEvent->Event.KeyEvent.uChar.AsciiChar;
InputEvent->Event.KeyEvent.uChar.AsciiChar = 0;
ConsoleInputAnsiToUnicodeChar(Console,
&InputEvent->Event.KeyEvent.uChar.UnicodeChar,
&AsciiChar);
}
}
static ULONG
PreprocessInput(PCONSRV_CONSOLE Console,
PINPUT_RECORD InputEvent,
ULONG NumEventsToWrite)
{
ULONG NumEvents;
/*
* Loop each event, and for each, check for pause or unpause
* and perform adequate behaviour.
*/
for (NumEvents = NumEventsToWrite; NumEvents > 0; --NumEvents)
{
/* Check for pause or unpause */
if (InputEvent->EventType == KEY_EVENT && InputEvent->Event.KeyEvent.bKeyDown)
{
WORD vk = InputEvent->Event.KeyEvent.wVirtualKeyCode;
if (!(Console->PauseFlags & PAUSED_FROM_KEYBOARD))
{
DWORD cks = InputEvent->Event.KeyEvent.dwControlKeyState;
if (Console->InputBuffer.Mode & ENABLE_LINE_INPUT &&
(vk == VK_PAUSE ||
(vk == 'S' && (cks & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED)) &&
!(cks & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)))))
{
ConioPause(Console, PAUSED_FROM_KEYBOARD);
/* Skip the event */
RtlMoveMemory(InputEvent,
InputEvent + 1,
(NumEvents - 1) * sizeof(INPUT_RECORD));
--NumEventsToWrite;
continue;
}
}
else
{
if ((vk < VK_SHIFT || vk > VK_CAPITAL) && vk != VK_LWIN &&
vk != VK_RWIN && vk != VK_NUMLOCK && vk != VK_SCROLL)
{
ConioUnpause(Console, PAUSED_FROM_KEYBOARD);
/* Skip the event */
RtlMoveMemory(InputEvent,
InputEvent + 1,
(NumEvents - 1) * sizeof(INPUT_RECORD));
--NumEventsToWrite;
continue;
}
}
}
/* Go to the next event */
++InputEvent;
}
return NumEventsToWrite;
}
static VOID
PostprocessInput(PCONSRV_CONSOLE Console)
{
CsrNotifyWait(&Console->ReadWaitQueue,
FALSE,
NULL,
NULL);
if (!IsListEmpty(&Console->ReadWaitQueue))
{
CsrDereferenceWait(&Console->ReadWaitQueue);
}
}
NTSTATUS NTAPI
ConDrvWriteConsoleInput(IN PCONSOLE Console,
IN PCONSOLE_INPUT_BUFFER InputBuffer,
IN BOOLEAN AppendToEnd,
IN PINPUT_RECORD InputRecord,
IN ULONG NumEventsToWrite,
OUT PULONG NumEventsWritten OPTIONAL);
static NTSTATUS
ConioAddInputEvents(PCONSRV_CONSOLE Console,
PINPUT_RECORD InputRecords, // InputEvent
ULONG NumEventsToWrite,
PULONG NumEventsWritten,
BOOLEAN AppendToEnd)
{
NTSTATUS Status = STATUS_SUCCESS;
if (NumEventsWritten) *NumEventsWritten = 0;
NumEventsToWrite = PreprocessInput(Console, InputRecords, NumEventsToWrite);
if (NumEventsToWrite == 0) return STATUS_SUCCESS;
// Status = ConDrvAddInputEvents(Console,
// InputRecords,
// NumEventsToWrite,
// NumEventsWritten,
// AppendToEnd);
Status = ConDrvWriteConsoleInput((PCONSOLE)Console,
&Console->InputBuffer,
AppendToEnd,
InputRecords,
NumEventsToWrite,
NumEventsWritten);
// if (NT_SUCCESS(Status))
if (Status == STATUS_SUCCESS) PostprocessInput(Console);
return Status;
}
/* FIXME: This function can be called by CONDRV, in ConioResizeBuffer() in text.c */
NTSTATUS
ConioProcessInputEvent(PCONSRV_CONSOLE Console,
PINPUT_RECORD InputEvent)
{
ULONG NumEventsWritten;
return ConioAddInputEvents(Console,
InputEvent,
1,
&NumEventsWritten,
TRUE);
}
static NTSTATUS
WaitBeforeReading(IN PGET_INPUT_INFO InputInfo,
IN PCSR_API_MESSAGE ApiMessage,
IN CSR_WAIT_FUNCTION WaitFunction OPTIONAL,
IN BOOLEAN CreateWaitBlock OPTIONAL)
{
if (CreateWaitBlock)
{
PGET_INPUT_INFO CapturedInputInfo;
PCONSRV_CONSOLE Console = (PCONSRV_CONSOLE)InputInfo->InputBuffer->Header.Console;
CapturedInputInfo = ConsoleAllocHeap(0, sizeof(GET_INPUT_INFO));
if (!CapturedInputInfo) return STATUS_NO_MEMORY;
RtlMoveMemory(CapturedInputInfo, InputInfo, sizeof(GET_INPUT_INFO));
if (!CsrCreateWait(&Console->ReadWaitQueue,
WaitFunction,
InputInfo->CallingThread,
ApiMessage,
CapturedInputInfo))
{
ConsoleFreeHeap(CapturedInputInfo);
return STATUS_NO_MEMORY;
}
}
/* Wait for input */
return STATUS_PENDING;
}
static NTSTATUS
ReadChars(IN PGET_INPUT_INFO InputInfo,
IN PCSR_API_MESSAGE ApiMessage,
IN BOOLEAN CreateWaitBlock OPTIONAL);
// Wait function CSR_WAIT_FUNCTION
static BOOLEAN
NTAPI
ReadCharsThread(IN PLIST_ENTRY WaitList,
IN PCSR_THREAD WaitThread,
IN PCSR_API_MESSAGE WaitApiMessage,
IN PVOID WaitContext,
IN PVOID WaitArgument1,
IN PVOID WaitArgument2,
IN ULONG WaitFlags)
{
NTSTATUS Status;
PGET_INPUT_INFO InputInfo = (PGET_INPUT_INFO)WaitContext;
PVOID InputHandle = WaitArgument2;
DPRINT("ReadCharsThread - WaitContext = 0x%p, WaitArgument1 = 0x%p, WaitArgument2 = 0x%p, WaitFlags = %lu\n", WaitContext, WaitArgument1, WaitArgument2, WaitFlags);
/*
* If we are notified of the process termination via a call
* to CsrNotifyWaitBlock triggered by CsrDestroyProcess or
* CsrDestroyThread, just return.
*/
if (WaitFlags & CsrProcessTerminating)
{
Status = STATUS_THREAD_IS_TERMINATING;
goto Quit;
}
/*
* Somebody is closing a handle to this input buffer,
* by calling ConSrvCloseHandleEntry.
* See whether we are linked to that handle (ie. we
* are a waiter for this handle), and if so, return.
* Otherwise, ignore the call and continue waiting.
*/
if (InputHandle != NULL)
{
Status = (InputHandle == InputInfo->HandleEntry ? STATUS_ALERTED
: STATUS_PENDING);
goto Quit;
}
/*
* If we go there, that means we are notified for some new input.
* The console is therefore already locked.
*/
Status = ReadChars(InputInfo, WaitApiMessage, FALSE);
Quit:
if (Status != STATUS_PENDING)
{
WaitApiMessage->Status = Status;
ConsoleFreeHeap(InputInfo);
}
return (Status == STATUS_PENDING ? FALSE : TRUE);
}
NTSTATUS NTAPI
ConDrvReadConsole(IN PCONSOLE Console,
IN PCONSOLE_INPUT_BUFFER InputBuffer,
IN BOOLEAN Unicode,
OUT PVOID Buffer,
IN OUT PCONSOLE_READCONSOLE_CONTROL ReadControl,
IN PVOID Parameter OPTIONAL,
IN ULONG NumCharsToRead,
OUT PULONG NumCharsRead OPTIONAL);
static NTSTATUS
ReadChars(IN PGET_INPUT_INFO InputInfo,
IN PCSR_API_MESSAGE ApiMessage,
IN BOOLEAN CreateWaitBlock OPTIONAL)
{
NTSTATUS Status;
PCONSOLE_READCONSOLE ReadConsoleRequest = &((PCONSOLE_API_MESSAGE)ApiMessage)->Data.ReadConsoleRequest;
PCONSOLE_INPUT_BUFFER InputBuffer = InputInfo->InputBuffer;
CONSOLE_READCONSOLE_CONTROL ReadControl;
UNICODE_STRING ExeName;
PVOID Buffer;
ULONG NrCharactersRead = 0;
ULONG CharSize = (ReadConsoleRequest->Unicode ? sizeof(WCHAR) : sizeof(CHAR));
/* Retrieve the executable name, if needed */
if (ReadConsoleRequest->InitialNumBytes == 0 &&
ReadConsoleRequest->ExeLength <= sizeof(ReadConsoleRequest->StaticBuffer))
{
ExeName.Length = ExeName.MaximumLength = ReadConsoleRequest->ExeLength;
ExeName.Buffer = (PWCHAR)ReadConsoleRequest->StaticBuffer;
}
else
{
ExeName.Length = ExeName.MaximumLength = 0;
ExeName.Buffer = NULL;
}
/* Build the ReadControl structure */
ReadControl.nLength = sizeof(CONSOLE_READCONSOLE_CONTROL);
ReadControl.nInitialChars = ReadConsoleRequest->InitialNumBytes / CharSize;
ReadControl.dwCtrlWakeupMask = ReadConsoleRequest->CtrlWakeupMask;
ReadControl.dwControlKeyState = ReadConsoleRequest->ControlKeyState;
/*
* For optimization purposes, Windows (and hence ReactOS, too, for
* compatibility reasons) uses a static buffer if no more than eighty
* bytes are read. Otherwise a new buffer is used.
* The client-side expects that we know this behaviour.
*/
if (ReadConsoleRequest->CaptureBufferSize <= sizeof(ReadConsoleRequest->StaticBuffer))
{
/*
* Adjust the internal pointer, because its old value points to
* the static buffer in the original ApiMessage structure.
*/
// ReadConsoleRequest->Buffer = ReadConsoleRequest->StaticBuffer;
Buffer = ReadConsoleRequest->StaticBuffer;
}
else
{
Buffer = ReadConsoleRequest->Buffer;
}
DPRINT("Calling ConDrvReadConsole(%wZ)\n", &ExeName);
Status = ConDrvReadConsole(InputBuffer->Header.Console,
InputBuffer,
ReadConsoleRequest->Unicode,
Buffer,
&ReadControl,
&ExeName,
ReadConsoleRequest->NumBytes / CharSize, // NrCharactersToRead
&NrCharactersRead);
DPRINT("ConDrvReadConsole returned (%d ; Status = 0x%08x)\n",
NrCharactersRead, Status);
// ReadConsoleRequest->ControlKeyState = ReadControl.dwControlKeyState;
if (Status == STATUS_PENDING)
{
/* We haven't completed a read, so start a wait */
return WaitBeforeReading(InputInfo,
ApiMessage,
ReadCharsThread,
CreateWaitBlock);
}
else
{
/*
* We read all what we wanted. Set the number of bytes read and
* return the error code we were given.
*/
ReadConsoleRequest->NumBytes = NrCharactersRead * CharSize;
ReadConsoleRequest->ControlKeyState = ReadControl.dwControlKeyState;
return Status;
// return STATUS_SUCCESS;
}
}
static NTSTATUS
ReadInputBuffer(IN PGET_INPUT_INFO InputInfo,
IN PCSR_API_MESSAGE ApiMessage,
IN BOOLEAN CreateWaitBlock OPTIONAL);
// Wait function CSR_WAIT_FUNCTION
static BOOLEAN
NTAPI
ReadInputBufferThread(IN PLIST_ENTRY WaitList,
IN PCSR_THREAD WaitThread,
IN PCSR_API_MESSAGE WaitApiMessage,
IN PVOID WaitContext,
IN PVOID WaitArgument1,
IN PVOID WaitArgument2,
IN ULONG WaitFlags)
{
NTSTATUS Status;
PGET_INPUT_INFO InputInfo = (PGET_INPUT_INFO)WaitContext;
PVOID InputHandle = WaitArgument2;
DPRINT("ReadInputBufferThread - WaitContext = 0x%p, WaitArgument1 = 0x%p, WaitArgument2 = 0x%p, WaitFlags = %lu\n", WaitContext, WaitArgument1, WaitArgument2, WaitFlags);
/*
* If we are notified of the process termination via a call
* to CsrNotifyWaitBlock triggered by CsrDestroyProcess or
* CsrDestroyThread, just return.
*/
if (WaitFlags & CsrProcessTerminating)
{
Status = STATUS_THREAD_IS_TERMINATING;
goto Quit;
}
/*
* Somebody is closing a handle to this input buffer,
* by calling ConSrvCloseHandleEntry.
* See whether we are linked to that handle (ie. we
* are a waiter for this handle), and if so, return.
* Otherwise, ignore the call and continue waiting.
*/
if (InputHandle != NULL)
{
Status = (InputHandle == InputInfo->HandleEntry ? STATUS_ALERTED
: STATUS_PENDING);
goto Quit;
}
/*
* If we go there, that means we are notified for some new input.
* The console is therefore already locked.
*/
Status = ReadInputBuffer(InputInfo, WaitApiMessage, FALSE);
Quit:
if (Status != STATUS_PENDING)
{
WaitApiMessage->Status = Status;
ConsoleFreeHeap(InputInfo);
}
return (Status == STATUS_PENDING ? FALSE : TRUE);
}
NTSTATUS NTAPI
ConDrvGetConsoleInput(IN PCONSOLE Console,
IN PCONSOLE_INPUT_BUFFER InputBuffer,
IN BOOLEAN KeepEvents,
IN BOOLEAN WaitForMoreEvents,
OUT PINPUT_RECORD InputRecord,
IN ULONG NumEventsToRead,
OUT PULONG NumEventsRead OPTIONAL);
static NTSTATUS
ReadInputBuffer(IN PGET_INPUT_INFO InputInfo,
IN PCSR_API_MESSAGE ApiMessage,
IN BOOLEAN CreateWaitBlock OPTIONAL)
{
NTSTATUS Status;
PCONSOLE_GETINPUT GetInputRequest = &((PCONSOLE_API_MESSAGE)ApiMessage)->Data.GetInputRequest;
PCONSOLE_INPUT_BUFFER InputBuffer = InputInfo->InputBuffer;
ULONG NumEventsRead;
PINPUT_RECORD InputRecord;
/*
* For optimization purposes, Windows (and hence ReactOS, too, for
* compatibility reasons) uses a static buffer if no more than five
* input records are read. Otherwise a new buffer is used.
* The client-side expects that we know this behaviour.
*/
if (GetInputRequest->NumRecords <= sizeof(GetInputRequest->RecordStaticBuffer)/sizeof(INPUT_RECORD))
{
/*
* Adjust the internal pointer, because its old value points to
* the static buffer in the original ApiMessage structure.
*/
// GetInputRequest->RecordBufPtr = GetInputRequest->RecordStaticBuffer;
InputRecord = GetInputRequest->RecordStaticBuffer;
}
else
{
InputRecord = GetInputRequest->RecordBufPtr;
}
NumEventsRead = 0;
Status = ConDrvGetConsoleInput(InputBuffer->Header.Console,
InputBuffer,
(GetInputRequest->Flags & CONSOLE_READ_KEEPEVENT) != 0,
(GetInputRequest->Flags & CONSOLE_READ_CONTINUE ) == 0,
InputRecord,
GetInputRequest->NumRecords,
&NumEventsRead);
if (Status == STATUS_PENDING)
{
/* We haven't completed a read, so start a wait */
return WaitBeforeReading(InputInfo,
ApiMessage,
ReadInputBufferThread,
CreateWaitBlock);
}
else
{
/*
* We read all what we wanted. Set the number of events read and
* return the error code we were given.
*/
GetInputRequest->NumRecords = NumEventsRead;
if (NT_SUCCESS(Status))
{
/* Now translate everything to ANSI */
if (!GetInputRequest->Unicode)
{
for (; NumEventsRead > 0; --NumEventsRead)
{
ConioInputEventToAnsi(InputBuffer->Header.Console, --InputRecord);
}
}
}
return Status;
// return STATUS_SUCCESS;
}
}
/* PUBLIC SERVER APIS *********************************************************/
CSR_API(SrvReadConsole)
{
NTSTATUS Status;
PCONSOLE_READCONSOLE ReadConsoleRequest = &((PCONSOLE_API_MESSAGE)ApiMessage)->Data.ReadConsoleRequest;
PCONSOLE_PROCESS_DATA ProcessData = ConsoleGetPerProcessData(CsrGetClientThread()->Process);
PVOID HandleEntry;
PCONSOLE_INPUT_BUFFER InputBuffer;
GET_INPUT_INFO InputInfo;
DPRINT("SrvReadConsole\n");
/*
* For optimization purposes, Windows (and hence ReactOS, too, for
* compatibility reasons) uses a static buffer if no more than eighty
* bytes are read. Otherwise a new buffer is used.
* The client-side expects that we know this behaviour.
*/
if (ReadConsoleRequest->CaptureBufferSize <= sizeof(ReadConsoleRequest->StaticBuffer))
{
/*
* Adjust the internal pointer, because its old value points to
* the static buffer in the original ApiMessage structure.
*/
// ReadConsoleRequest->Buffer = ReadConsoleRequest->StaticBuffer;
}
else
{
if (!CsrValidateMessageBuffer(ApiMessage,
(PVOID*)&ReadConsoleRequest->Buffer,
ReadConsoleRequest->CaptureBufferSize,
sizeof(BYTE)))
{
return STATUS_INVALID_PARAMETER;
}
}
if (ReadConsoleRequest->InitialNumBytes > ReadConsoleRequest->NumBytes)
{
return STATUS_INVALID_PARAMETER;
}
Status = ConSrvGetInputBufferAndHandleEntry(ProcessData, ReadConsoleRequest->InputHandle, &InputBuffer, &HandleEntry, GENERIC_READ, TRUE);
if (!NT_SUCCESS(Status)) return Status;
InputInfo.CallingThread = CsrGetClientThread();
InputInfo.HandleEntry = HandleEntry;
InputInfo.InputBuffer = InputBuffer;
Status = ReadChars(&InputInfo, ApiMessage, TRUE);
ConSrvReleaseInputBuffer(InputBuffer, TRUE);
if (Status == STATUS_PENDING) *ReplyCode = CsrReplyPending;
return Status;
}
CSR_API(SrvGetConsoleInput)
{
NTSTATUS Status;
PCONSOLE_GETINPUT GetInputRequest = &((PCONSOLE_API_MESSAGE)ApiMessage)->Data.GetInputRequest;
PCONSOLE_PROCESS_DATA ProcessData = ConsoleGetPerProcessData(CsrGetClientThread()->Process);
PVOID HandleEntry;
PCONSOLE_INPUT_BUFFER InputBuffer;
GET_INPUT_INFO InputInfo;
DPRINT("SrvGetConsoleInput\n");
if (GetInputRequest->Flags & ~(CONSOLE_READ_KEEPEVENT | CONSOLE_READ_CONTINUE))
return STATUS_INVALID_PARAMETER;
/*
* For optimization purposes, Windows (and hence ReactOS, too, for
* compatibility reasons) uses a static buffer if no more than five
* input records are read. Otherwise a new buffer is used.
* The client-side expects that we know this behaviour.
*/
if (GetInputRequest->NumRecords <= sizeof(GetInputRequest->RecordStaticBuffer)/sizeof(INPUT_RECORD))
{
/*
* Adjust the internal pointer, because its old value points to
* the static buffer in the original ApiMessage structure.
*/
// GetInputRequest->RecordBufPtr = GetInputRequest->RecordStaticBuffer;
}
else
{
if (!CsrValidateMessageBuffer(ApiMessage,
(PVOID*)&GetInputRequest->RecordBufPtr,
GetInputRequest->NumRecords,
sizeof(INPUT_RECORD)))
{
return STATUS_INVALID_PARAMETER;
}
}
Status = ConSrvGetInputBufferAndHandleEntry(ProcessData, GetInputRequest->InputHandle, &InputBuffer, &HandleEntry, GENERIC_READ, TRUE);
if (!NT_SUCCESS(Status)) return Status;
InputInfo.CallingThread = CsrGetClientThread();
InputInfo.HandleEntry = HandleEntry;
InputInfo.InputBuffer = InputBuffer;
Status = ReadInputBuffer(&InputInfo, ApiMessage, TRUE);
ConSrvReleaseInputBuffer(InputBuffer, TRUE);
if (Status == STATUS_PENDING) *ReplyCode = CsrReplyPending;
return Status;
}
#if 0
NTSTATUS NTAPI
ConDrvWriteConsoleInput(IN PCONSOLE Console,
IN PCONSOLE_INPUT_BUFFER InputBuffer,
IN BOOLEAN AppendToEnd,
IN PINPUT_RECORD InputRecord,
IN ULONG NumEventsToWrite,
OUT PULONG NumEventsWritten OPTIONAL);
#endif
CSR_API(SrvWriteConsoleInput)
{
NTSTATUS Status;
PCONSOLE_WRITEINPUT WriteInputRequest = &((PCONSOLE_API_MESSAGE)ApiMessage)->Data.WriteInputRequest;
PCONSOLE_INPUT_BUFFER InputBuffer;
ULONG NumEventsWritten;
PINPUT_RECORD InputRecord;
DPRINT("SrvWriteConsoleInput\n");
/*
* For optimization purposes, Windows (and hence ReactOS, too, for
* compatibility reasons) uses a static buffer if no more than five
* input records are written. Otherwise a new buffer is used.
* The client-side expects that we know this behaviour.
*/
if (WriteInputRequest->NumRecords <= sizeof(WriteInputRequest->RecordStaticBuffer)/sizeof(INPUT_RECORD))
{
/*
* Adjust the internal pointer, because its old value points to
* the static buffer in the original ApiMessage structure.
*/
// WriteInputRequest->RecordBufPtr = WriteInputRequest->RecordStaticBuffer;
InputRecord = WriteInputRequest->RecordStaticBuffer;
}
else
{
if (!CsrValidateMessageBuffer(ApiMessage,
(PVOID*)&WriteInputRequest->RecordBufPtr,
WriteInputRequest->NumRecords,
sizeof(INPUT_RECORD)))
{
return STATUS_INVALID_PARAMETER;
}
InputRecord = WriteInputRequest->RecordBufPtr;
}
Status = ConSrvGetInputBuffer(ConsoleGetPerProcessData(CsrGetClientThread()->Process),
WriteInputRequest->InputHandle,
&InputBuffer, GENERIC_WRITE, TRUE);
if (!NT_SUCCESS(Status))
{
WriteInputRequest->NumRecords = 0;
return Status;
}
/* First translate everything to UNICODE */
if (!WriteInputRequest->Unicode)
{
ULONG i;
for (i = 0; i < WriteInputRequest->NumRecords; ++i)
{
ConioInputEventToUnicode(InputBuffer->Header.Console, &InputRecord[i]);
}
}
/* Now, add the events */
NumEventsWritten = 0;
Status = ConioAddInputEvents((PCONSRV_CONSOLE)InputBuffer->Header.Console,
// InputBuffer,
InputRecord,
WriteInputRequest->NumRecords,
&NumEventsWritten,
WriteInputRequest->AppendToEnd);
// Status = ConDrvWriteConsoleInput(InputBuffer->Header.Console,
// InputBuffer,
// WriteInputRequest->AppendToEnd,
// InputRecord,
// WriteInputRequest->NumRecords,
// &NumEventsWritten);
WriteInputRequest->NumRecords = NumEventsWritten;
ConSrvReleaseInputBuffer(InputBuffer, TRUE);
return Status;
}
NTSTATUS NTAPI
ConDrvFlushConsoleInputBuffer(IN PCONSOLE Console,
IN PCONSOLE_INPUT_BUFFER InputBuffer);
CSR_API(SrvFlushConsoleInputBuffer)
{
NTSTATUS Status;
PCONSOLE_FLUSHINPUTBUFFER FlushInputBufferRequest = &((PCONSOLE_API_MESSAGE)ApiMessage)->Data.FlushInputBufferRequest;
PCONSOLE_INPUT_BUFFER InputBuffer;
DPRINT("SrvFlushConsoleInputBuffer\n");
Status = ConSrvGetInputBuffer(ConsoleGetPerProcessData(CsrGetClientThread()->Process),
FlushInputBufferRequest->InputHandle,
&InputBuffer, GENERIC_WRITE, TRUE);
if (!NT_SUCCESS(Status)) return Status;
Status = ConDrvFlushConsoleInputBuffer(InputBuffer->Header.Console,
InputBuffer);
ConSrvReleaseInputBuffer(InputBuffer, TRUE);
return Status;
}
NTSTATUS NTAPI
ConDrvGetConsoleNumberOfInputEvents(IN PCONSOLE Console,
IN PCONSOLE_INPUT_BUFFER InputBuffer,
OUT PULONG NumberOfEvents);
CSR_API(SrvGetConsoleNumberOfInputEvents)
{
NTSTATUS Status;
PCONSOLE_GETNUMINPUTEVENTS GetNumInputEventsRequest = &((PCONSOLE_API_MESSAGE)ApiMessage)->Data.GetNumInputEventsRequest;
PCONSOLE_INPUT_BUFFER InputBuffer;
DPRINT("SrvGetConsoleNumberOfInputEvents\n");
Status = ConSrvGetInputBuffer(ConsoleGetPerProcessData(CsrGetClientThread()->Process),
GetNumInputEventsRequest->InputHandle,
&InputBuffer, GENERIC_READ, TRUE);
if (!NT_SUCCESS(Status)) return Status;
Status = ConDrvGetConsoleNumberOfInputEvents(InputBuffer->Header.Console,
InputBuffer,
&GetNumInputEventsRequest->NumberOfEvents);
ConSrvReleaseInputBuffer(InputBuffer, TRUE);
return Status;
}
/* EOF */