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windows-nt/Source/XPSP1/NT/termsrv/reskit/smc/tclient/clx/clxtshar.c

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2020-09-26 03:20:57 -05:00
/*+
* File name:
* clxtshar.c
* Contents:
* Client extension loaded by RDP client
*
* Copyright (C) 1998-1999 Microsoft Corp.
--*/
#include <windows.h>
#include <windowsx.h>
#include <winsock.h>
#include <string.h>
#include <malloc.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#ifndef OS_WINCE
#include <direct.h>
#endif // OS_WINCE
#ifndef OS_WINCE
#ifdef OS_WIN32
#include <process.h>
#endif // OS_WIN32
#endif // !OS_WINCE
#include "clxexport.h"
#include "clxtshar.h"
#define WM_CLIPBOARD (WM_USER) // Internal notifcation to send
// our clipboard
#ifdef OS_WIN32
#ifndef OS_WINCE
/*++
* Function:
* DllMain
* Description:
* Dll entry point for win32 (no WinCE)
--*/
int APIENTRY DllMain(HINSTANCE hDllInst,
DWORD dwReason,
LPVOID fImpLoad)
{
if (dwReason == DLL_PROCESS_ATTACH)
{
g_hInstance = hDllInst;
TRACE((INFO_MESSAGE, TEXT("Clx attached\n")));
// Check the key "Allow Background Input"
// If not set pop a message for that
if (!_CheckRegistrySettings())
MessageBox(NULL, "CLXTSHAR.DLL: Can't find registry key:\n"
"HKEY_CURRENT_USER\\Software\\Microsoft\\Terminal Server Client\\"
"Allow Background Input.\n"
"In order to work properly "
"CLX needs this key to be set to 1", "Warning",
MB_OK);
_GetIniSettings();
}
if (dwReason == DLL_PROCESS_DETACH)
{
TRACE((INFO_MESSAGE, TEXT("Clx detached\n")));
}
return TRUE;
}
#endif // !OS_WINCE
#endif // OS_WIN32
#ifdef OS_WINCE
/*++
* Function:
* dllentry
* Description:
* Dll entry point for wince
--*/
BOOL __stdcall dllentry(HINSTANCE hDllInst,
DWORD dwReason,
LPVOID fImpLoad)
{
if (dwReason == DLL_PROCESS_ATTACH)
{
g_hInstance = hDllInst;
TRACE((INFO_MESSAGE, TEXT("Clx attached\n")));
if (!_StartAsyncThread())
TRACE((ERROR_MESSAGE,
TEXT("Can't start AsyncThread. TCP unusable\n")));
_GetIniSettings();
}
if (dwReason == DLL_PROCESS_DETACH)
{
TRACE((INFO_MESSAGE, TEXT("Clx detached\n")));
_CloseAsyncThread();
}
return TRUE;
}
#endif // OS_WIN32
#ifdef OS_WIN16
/*++
* Function:
* LibMain
* Description:
* Dll entry point for win16
--*/
int CALLBACK LibMain(HINSTANCE hInstance,
WORD dataSeg,
WORD heapSize,
LPSTR pCmdLine)
{
// Check if we are already initialized
// Only one client is allowed in Win16 environment
// so, only one dll can be loaded at a time
if (g_hInstance)
goto exitpt;
g_hInstance = hInstance;
// Check the key "Allow Background Input"
// If not set pop a message for that
if (!_CheckIniSettings())
MessageBox(NULL, "CLXTSHAR.DLL: Can't find key: "
"Allow Background Input in mstsc.ini, section \"\"\n"
"In order to work properly "
"CLX needs this key to be set to 1", "Warning",
MB_OK);
_GetIniSettings();
exitpt:
return TRUE;
}
#endif // OS_WIN16
/*++
* Function:
* ClxInitialize
* Description:
* Initilizes a context for the current session
* reads the command line paramters and determines
* the mode wich will run the extension: local or RCLX (Remote CLient
* eXecution)
* Win32/Win16/WinCE
* Arguments:
* pClInfo - RDP client info
* ppClx - context info
* Return value:
* TRUE on success
* Called by:
* !mstsc after the dll is loaded
--*/
BOOL
CLXAPI
ClxInitialize(PCLINFO pClInfo, PCLXINFO *ppClx)
{
BOOL rv = FALSE;
HWND hwndSMC;
#ifdef OS_WIN32
#ifndef OS_WINCE
// We have enough problems in stress with early unloaded
// dll, reference it now and keep it up until the process
// dies
LoadLibrary("clxtshar.dll");
#endif // !OS_WINCE
#endif // OS_WIN32
hwndSMC = _ParseCmdLine(pClInfo->pszCmdLine);
if (IS_RCLX && !WS_Init())
{
TRACE((ERROR_MESSAGE, TEXT("Can't init winsock\n")));
goto exitpt;
}
if (g_pClx)
// Should not be called twice
{
TRACE((WARNING_MESSAGE, TEXT("g_pClx is not null. Reentered ?!\n")));
goto exitpt;
}
*ppClx = (PCLXINFO)_CLXALLOC(sizeof(**ppClx));
g_pClx = (*ppClx);
if (!*ppClx)
goto exitpt;
// Clear the structure
memset(*ppClx, 0, sizeof(**ppClx));
// put init of g_pClx here
g_pClx->bClipboardReenter = (ULONG)-1;
//
// Remember client's input window
(*ppClx)->hwndMain = pClInfo->hwndMain;
if (pClInfo->hwndMain)
#ifdef OS_WINCE
g_hRDPInst = GetCurrentProcessId();
#else // !OS_WINCE
#ifdef _WIN64
g_hRDPInst = (HINSTANCE)GetWindowLongPtr((*ppClx)->hwndMain, GWLP_HINSTANCE);
#else // !_WIN64
#ifdef OS_WIN32
g_hRDPInst = (HINSTANCE)GetWindowLong((*ppClx)->hwndMain, GWL_HINSTANCE);
#endif // OS_WIN32
#endif // _WIN64
#ifdef OS_WIN16
g_hRDPInst = (HINSTANCE)GetWindowWord((*ppClx)->hwndMain, GWW_HINSTANCE);
#endif // OS_WIN16
#endif // !OS_WINCE
#ifndef OS_WINCE
#ifdef OS_WIN32
// and dwProcessId
(*ppClx)->dwProcessId = GetCurrentProcessId();
#endif // OS_WIN32
#endif // !OS_WINCE
if (IS_RCLX)
{
(*ppClx)->hSocket = INVALID_SOCKET;
RClx_CreateWindow(g_hInstance);
}
#ifdef OS_WIN32
#ifndef OS_WINCE
else {
if (!((*ppClx)->hwndSMC = hwndSMC))
(*ppClx)->hwndSMC = _FindSMCWindow(*ppClx);
}
#endif // !OS_WINCE
#endif // OS_WIN32
if (g_hWindow) // REMOVED: && g_nMyReconId)
PostMessage(g_hWindow, WM_TIMER, 0, 0);
rv = TRUE;
exitpt:
return rv;
}
/*++
* Function:
* ClxEvent
* Description:
* Notifies tclient.dll that some event happend.
* Connect/disconnect.
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* Event - can be one of the following:
* CLX_EVENT_CONNECT
* CLX_EVENT_DISCONNECT
* CLX_EVENT_LOGON
* Called by:
* !mstsc on event
* alse some of the internal functions call this, especialy
* to notify that the client can't connect:
* ClxTerminate
* _GarbageCollecting when an error box is popped
--*/
VOID
CLXAPI
ClxEvent(PCLXINFO pClx, CLXEVENT Event, ULONG ulResult)
{
UINT uiMessage = 0;
#ifdef OS_WIN16
ULONG lResult = ulResult;
#else // !OS_WIN16
LONG_PTR lResult = ulResult;
#endif
if (!pClx)
goto exitpt;
#ifdef VLADIMIS
#pragma message("Disable this peace before checkin")
if (Event == CLX_EVENT_SHADOWBITMAPDC)
{
pClx->hdcShadowBitmap = (HDC)lResult;
goto exitpt;
} else if (Event == CLX_EVENT_SHADOWBITMAP)
{
pClx->hShadowBitmap = (HBITMAP)lResult;
goto exitpt;
}
#endif // VLADIMIS
if (IS_RCLX)
{
RClx_SendEvent(pClx, Event, ulResult);
}
#ifndef OS_WINCE
else {
if (!_CheckWindow(pClx))
goto exitpt;
if (Event == CLX_EVENT_DISCONNECT)
uiMessage = WM_FB_DISCONNECT;
else if (Event == CLX_EVENT_CONNECT)
{
uiMessage = WM_FB_CONNECT;
lResult = (LONG_PTR)pClx->hwndMain;
}
else if (Event == CLX_EVENT_LOGON)
// lResult contains the session ID
uiMessage = WM_FB_LOGON;
if (uiMessage)
{
#ifdef OS_WIN32
_ClxSendMessage(pClx->hwndSMC,
uiMessage,
(WPARAM)lResult,
pClx->dwProcessId);
#endif // OS_WIN32
#ifdef OS_WIN16
if (g_hRDPInst)
SendMessage(pClx->hwndSMC,
uiMessage,
g_hRDPInst,
(LPARAM)lResult);
#endif // OS_WIN16
}
}
#endif // !OS_WINCE
exitpt:
;
}
/*++
* Function:
* ClxTextOut
* Description:
* Notifies tclient.dll that TEXTOUT order is recieved.
* Passes the string to the dll. Supported only in Win32
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* pText - buffer containing the string
* textLength - string length
* Called by:
* !mstsc on receiving textout order
--*/
VOID
CLXAPI
ClxTextOut(PCLXINFO pClx, PVOID pText, INT textLength)
{
if (!pClx || !(*((UINT16 *)pText)))
goto exitpt;
if (IS_RCLX)
{
RClx_SendTextOut(pClx, pText, textLength);
goto exitpt;
}
#ifdef OS_WIN32
#ifndef OS_WINCE
if (!_CheckWindow(pClx))
goto exitpt;
if (!pClx->hMapF)
if (!_OpenMapFile(pClx, 0))
goto exitpt;
if (_SaveInMapFile(pClx->hMapF, pText, textLength, pClx->dwProcessId))
_ClxSendMessage(pClx->hwndSMC,
WM_FB_TEXTOUT,
(WPARAM)pClx->dwProcessId,
(LPARAM)pClx->hMapF);
#endif // !OS_WINCE
#endif // OS_WIN32
exitpt:
;
}
/*++
* Function:
* ClxTerminate
* Description:
* Frees all alocations from ClxInitialize
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* Called by:
* !mstsc before the dll is unloaded and client exit
--*/
VOID
CLXAPI
ClxTerminate(PCLXINFO pClx)
{
PCLXVCHANNEL pNext;
if (!pClx)
goto exitpt;
ClxEvent(pClx, CLX_EVENT_DISCONNECT, 0);
if (IS_RCLX)
{
pClx->alive = FALSE;
RClx_Disconnect(pClx);
}
#ifdef OS_WIN32
#ifndef OS_WINCE
else {
if(pClx->hMapF)
CloseHandle(pClx->hMapF);
_ClxDestroySendMsgThread(g_pClx);
}
#endif // !OS_WINCE
#endif // OS_WIN32
if (pClx->uiReconnectTimer)
{
KillTimer(g_hWindow, pClx->uiReconnectTimer);
pClx->uiReconnectTimer = 0;
}
if (pClx->pRequest)
_CLXFREE(pClx->pRequest);
_CLXFREE(pClx);
g_pClx = NULL;
// dispose g_pVChannels;
while(g_pVChannels)
{
pNext = g_pVChannels->pNext;
free(g_pVChannels);
g_pVChannels = pNext;
}
RClx_DestroyWindow();
if (IS_RCLX)
WSACleanup();
exitpt:
;
}
/*
* Void functions exported to the RDP client
*/
VOID
CLXAPI
ClxConnect(PCLXINFO pClx, LPTSTR lpsz)
{
}
VOID
CLXAPI
ClxDisconnect(PCLXINFO pClx)
{
}
/*++
* Function:
* ClxDialog
* Description:
* The RDP client is ready with the connect dialog.
* In RCLX mode this means that we can connect to the test controler
* Win32/Win16/WinCE
* Arguments:
* pClx - connection context
* hwnd - handle to the dialog window
* Called by:
* !mstsc when the connect dialog is ready
--*/
VOID
CLXAPI
ClxDialog(PCLXINFO pClx, HWND hwnd)
{
if (!pClx)
goto exitpt;
pClx->hwndDialog = hwnd;
if (hwnd == NULL)
// Dialog disappears
goto exitpt;
if (g_hWindow)
PostMessage(g_hWindow, WM_TIMER, 0, 0);
else
TRACE((ERROR_MESSAGE, TEXT("No g_hWindow in ClxDialog\n")));
exitpt:
;
}
/*++
* Function:
* ClxBitmap
* Description:
* Send a received bitmap to tclient.dll
* Works on Win16/Win32/WinCE in RCLX mode
* and on Win32 for local mode
* Arguments:
* pClx - context
* cxSize, cySize - size of the bitmap
* pBuffer - bitmap bits
* nBmiSize - size of BITMAPINFO
* pBmi - BITMAPINFO
* Called by:
* UHDrawMemBltOrder!mstsc
* ClxGlyphOut
--*/
VOID
CLXAPI
ClxBitmap(
PCLXINFO pClx,
UINT cxSize,
UINT cySize,
PVOID pBuffer,
UINT nBmiSize,
PVOID pBmi)
{
#ifndef OS_WINCE
#ifdef OS_WIN32
UINT nSize, nBmpSize;
PBMPFEEDBACK pView;
#endif // OS_WIN32
#endif // !OS_WINCE
if (!g_GlyphEnable)
goto exitpt;
if (!pClx)
goto exitpt;
if (nBmiSize && !pBmi)
goto exitpt;
if (IS_RCLX)
{
RClx_SendBitmap(pClx, cxSize, cySize, pBuffer, nBmiSize, pBmi);
goto exitpt;
}
#ifdef OS_WIN32
#ifndef OS_WINCE
if (!_CheckWindow(pClx))
goto exitpt;
if (!nBmiSize)
nBmpSize = (cxSize * cySize ) >> 3;
else
{
nBmpSize = ((PBITMAPINFO)pBmi)->bmiHeader.biSizeImage;
if (!nBmpSize)
nBmpSize = (cxSize * cySize *
((PBITMAPINFO)pBmi)->bmiHeader.biBitCount) >> 3;
}
nSize = nBmpSize + nBmiSize + sizeof(*pView);
if (!nSize)
goto exitpt;
if (!pClx->hMapF)
if (!_OpenMapFile(pClx, nSize))
goto exitpt;
if (nSize > pClx->nMapSize)
if (!_ReOpenMapFile(pClx, nSize))
goto exitpt;
pView = MapViewOfFile(pClx->hMapF,
FILE_MAP_ALL_ACCESS,
0,
0,
nSize);
if (!pView)
goto exitpt;
pView->lProcessId = pClx->dwProcessId;
pView->bmpsize = nBmpSize;
pView->bmiSize = nBmiSize;
pView->xSize = cxSize;
pView->ySize = cySize;
if (pBmi)
CopyMemory(&(pView->BitmapInfo), pBmi, nBmiSize);
CopyMemory((BYTE *)(&(pView->BitmapInfo)) + nBmiSize, pBuffer, nBmpSize);
if (!nBmiSize)
{
// This is glyph, strip it to the skin
_StripGlyph((BYTE *)(&pView->BitmapInfo), &cxSize, cySize);
nBmpSize = (cxSize * cySize ) >> 3;
pView->bmpsize = nBmpSize;
pView->xSize = cxSize;
}
UnmapViewOfFile(pView);
_ClxSendMessage(pClx->hwndSMC,
WM_FB_BITMAP,
(WPARAM)pClx->dwProcessId,
(LPARAM)pClx->hMapF);
#endif // !OS_WINCE
#endif // OS_WIN32
exitpt:
;
}
/*++
* Function:
* ClxGlyphOut
* Description:
* Send a glyph to tclient.dll
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* cxBits,cyBits - glyph size
* pBuffer - the glyph
* Called by:
* GHOutputBuffer!mstsc
--*/
VOID
CLXAPI
ClxGlyphOut(
PCLXINFO pClx,
UINT cxBits,
UINT cyBits,
PVOID pBuffer)
{
if (g_GlyphEnable)
ClxBitmap(pClx, cxBits, cyBits, pBuffer, 0, NULL);
}
/*++
* Function:
* ClxGlyphOut
* Description:
* Send a glyph to tclient.dll
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* cxBits,cyBits - glyph size
* pBuffer - the glyph
* Called by:
* GHOutputBuffer!mstsc
--*/
BOOL
CLXAPI
ClxGetClientData(
PCLX_CLIENT_DATA pClntData
)
{
BOOL rv = FALSE;
if (!pClntData)
{
TRACE((ERROR_MESSAGE, TEXT("ClxGetClientData: parameter is NULL\n")));
goto exitpt;
}
memset(pClntData, 0, sizeof(*pClntData));
if (!g_pClx)
{
TRACE((ERROR_MESSAGE, TEXT("ClxGetClientData: Clx has no context\n")));
goto exitpt;
}
pClntData->hScreenDC = g_pClx->hdcShadowBitmap;
pClntData->hScreenBitmap = g_pClx->hShadowBitmap;
pClntData->hwndMain = g_pClx->hwndMain;
pClntData->hwndDialog = g_pClx->hwndDialog;
pClntData->hwndInput = g_pClx->hwndInput;
rv = TRUE;
exitpt:
return rv;
}
/*++
* Function:
* _ParseCmdLine
* Description:
* Retreives WHND of tclient.dll feedback window
* passed by the command line
* or retreives TestServer name if clxtshar will be
* executed in RCLX mode
* Win32/Win16/WinCE
* Arguments:
* szCmdLine - command line
* Return value:
* The window handle
* Called by:
* ClxInitialize
--*/
HWND _ParseCmdLine(LPCTSTR szCmdLine)
{
HWND hwnd = NULL;
LPCTSTR pszwnd, pszdot, pszend;
INT nCounter;
if (!szCmdLine)
goto exitpt;
TRACE((INFO_MESSAGE, TEXT("Command line: %s\n"), szCmdLine));
// Check for _RECONIDOPT(ReconID) option
pszwnd = _CLX_strstr(szCmdLine, TEXT(_RECONIDOPT));
if (!pszwnd)
goto skip_reconidopt;
pszwnd += _CLX_strlen(TEXT(_RECONIDOPT));
g_nMyReconId = _CLX_atol(pszwnd);
skip_reconidopt:
// Check for _HWNDOPT(hSMC) option
pszwnd = _CLX_strstr(szCmdLine, TEXT(_HWNDOPT));
if (!pszwnd)
goto exitpt;
// Goto the parameter
pszwnd += _CLX_strlen(TEXT(_HWNDOPT));
// Find the end of the paramter
pszend = _CLX_strchr(pszwnd, TEXT(' '));
if (!pszend)
pszend = pszwnd + _CLX_strlen(pszwnd);
// Check if paramter is valid host name, i.e. not a number
pszdot = _CLX_strchr(pszwnd, TEXT('.'));
if (isalpha(*pszwnd) || (pszdot && (pszdot < pszend)))
{
// This is RCLX mode, grab the TestServer name
#ifdef OS_WIN16
INT len;
#else // !OS_WIN16
LONG_PTR len;
#endif // OS_WIN16
len = pszend - pszwnd;
if (!len || len >= sizeof(g_szTestServer))
{
TRACE((WARNING_MESSAGE,
TEXT("TestServer name is too long\n")));
goto exitpt;
}
for (nCounter = 0;
nCounter < len;
g_szTestServer[nCounter] = (CHAR)(pszwnd[nCounter]), nCounter++)
;
g_szTestServer[len] = 0;
#ifdef UNICODE
TRACE((INFO_MESSAGE,
L"RCLX mode, connecting to test controler: %S\n",
g_szTestServer));
#else // !UNICODE
TRACE((INFO_MESSAGE,
"RCLX mode, connecting to test controler: %s\n",
g_szTestServer));
#endif // !UNICODE
} else {
// local execution, hwnd passed
#ifdef _WIN64
hwnd = (HWND) _atoi64(pszwnd);
#else // !_WIN64
hwnd = (HWND) _CLX_atol(pszwnd);
#endif // !_WIN64
TRACE((INFO_MESSAGE,
TEXT("Local mode. Sending messages to smclient. HWND=0x%x\n"),
hwnd));
}
exitpt:
return hwnd;
}
#ifndef OS_WINCE
/*++
* Function:
* _EnumWindowsProcForSMC
* Description:
* Searches for the feedback window by class name
* When found, sends a WM_FB_ACCEPTME to ensure that
* this is the right window handle
* Win32/Win16/!WinCE
* Arguments:
* hWnd - current window
* lParam - unused
* Return value:
* FALSE if found
* Called by:
* _FindSMCWindow thru EnumWindows
--*/
BOOL CALLBACK LOADDS _EnumWindowsProcForSMC( HWND hWnd, LPARAM lParam )
{
TCHAR classname[128];
BOOL bCont = TRUE;
if (GetClassName(hWnd, classname, sizeof(classname)))
{
if (!
_CLX_strcmp(classname, TEXT(_TSTNAMEOFCLAS)) &&
#ifdef OS_WIN32
SendMessage(hWnd, WM_FB_ACCEPTME, 0, GetCurrentProcessId()))
#endif
#ifdef OS_WIN16
SendMessage(hWnd, WM_FB_ACCEPTME, (WPARAM)g_hRDPInst, 0))
#endif
{
*((HWND*)lParam) = hWnd;
bCont = FALSE;
}
}
return bCont;
}
/*++
* Function:
* _FindSMCWindow
* Description:
* Finds the tclient feedback window
* Win32/Win16/!WinCE
* Arguments:
* pClx - context
* Return value:
* The window handle
* Called by:
* ClxInitialize, _CheckWindow
--*/
HWND _FindSMCWindow(PCLXINFO pClx)
{
HWND hwndFound = NULL;
EnumWindows(_EnumWindowsProcForSMC, (LPARAM)&hwndFound);
return hwndFound;
}
/*++
* Function:
* _CheckWindow
* Description:
* Checks the feedback window and if neccessary finds it
* Win32/Win16/!WinCE
* Arguments:
* pClx - context
* Return value:
* Feedback window handle
* Called by:
* ClxEvetm ClxTextOut, ClxBitmap
--*/
HWND _CheckWindow(PCLXINFO pClx)
{
if (!pClx->hwndSMC)
{
pClx->hwndSMC = _FindSMCWindow(pClx);
if (pClx->hwndSMC)
{
TRACE((INFO_MESSAGE,
TEXT("SMC window found:0x%x\n"),
pClx->hwndSMC));
}
} else {
#ifdef _WIN64
if (!GetWindowLongPtr(pClx->hwndSMC, GWLP_HINSTANCE))
#else // !_WIN64
#ifdef OS_WIN32
if (!GetWindowLong(pClx->hwndSMC, GWL_HINSTANCE))
#endif
#ifdef OS_WIN16
if (!GetWindowWord(pClx->hwndSMC, GWW_HINSTANCE))
#endif
#endif // _WIN64
{
TRACE((WARNING_MESSAGE, TEXT("SMC window lost\n")));
pClx->hwndSMC = NULL;
}
}
return (pClx->hwndSMC);
}
#endif // !OS_WINCE
#ifdef OS_WIN32
#ifndef OS_WINCE
/*++
* Function:
* _OpenMapFile
* Description:
* Opens a shared memeory for passing feedback to tclient.dll
* Win32/!Win16/!WinCE
* Return value:
* TRUE if handle is allocated successfully
* Called by:
* ClxTextOut, ClxBitmap
--*/
BOOL _OpenMapFile(PCLXINFO pClx, UINT nSize)
{
HANDLE hMapF;
UINT nPageAligned;
if (!nSize)
nPageAligned = ((sizeof(FEEDBACKINFO) / CLX_ONE_PAGE) + 1) *
CLX_ONE_PAGE;
else
nPageAligned = ((nSize / CLX_ONE_PAGE) + 1) * CLX_ONE_PAGE;
hMapF = CreateFileMapping(INVALID_HANDLE_VALUE, //PG.SYS
NULL, // no security
PAGE_READWRITE,
0, // Size high
nPageAligned, // Size low (1 page)
NULL);
pClx->nMapSize = (hMapF)?nPageAligned:0;
pClx->hMapF = hMapF;
return (hMapF != NULL);
}
/*++
* Function:
* _ReOpenMapFile
* Description:
* Closes and opens a new shared memory with larger size
* Win32/!Win16/!WinCE
* Arguments:
* pClx - context
* newSize - size of the new memory
* Return value:
* TRUE on success
* Called by:
* ClxBitmap
--*/
BOOL _ReOpenMapFile(PCLXINFO pClx, UINT newSize)
{
HANDLE hNewMapF;
UINT nPageAligned;
nPageAligned = ((newSize / CLX_ONE_PAGE) + 1) * CLX_ONE_PAGE;
if (pClx->hMapF)
CloseHandle(pClx->hMapF);
hNewMapF = CreateFileMapping(INVALID_HANDLE_VALUE, //PG.SYS
NULL, // no security
PAGE_READWRITE,
0, // Size high
nPageAligned, // Size low
NULL);
pClx->nMapSize = (hNewMapF)?nPageAligned:0;
pClx->hMapF = hNewMapF;
return (hNewMapF != NULL);
}
/*++
* Function:
* _SaveinMapFile
* Description:
* Saves a string into the shared memory
* Win32/!Win16/!WinCE
* Arguments:
* hMapF - handle to the map file
* str - the string
* strsize - size of the string
* dwProcessId - our process Id
* Return value:
* TRUE on success
* Called by:
* ClxTextOut
--*/
BOOL _SaveInMapFile(HANDLE hMapF, LPVOID *str, int strsize, DWORD dwProcessId)
{
BOOL rv = FALSE, count = 0;
PFEEDBACKINFO pView;
DWORD laste;
pView = MapViewOfFile(hMapF,
FILE_MAP_ALL_ACCESS,
0,
0,
sizeof(*pView));
if (!pView)
goto exitpt;
pView->dwProcessId = dwProcessId;
strsize = (strsize > sizeof(pView->string)/sizeof(WCHAR))?
sizeof(pView->string)/sizeof(WCHAR):
strsize;
CopyMemory(pView->string, str, strsize*sizeof(WCHAR));
((WCHAR *)(pView->string))[strsize] = 0;
pView->strsize = strsize;
UnmapViewOfFile(pView);
rv = TRUE;
exitpt:
return rv;
}
/*++
* Function:
* _CheckRegistrySettings
* Description:
* Checks if the registry settings are OK for running clxtshar
* "Allow Background Input" must be set to 1 for proper work
* Win32/!Win16/!WinCE
* Return value:
* TRUE if the settings are OK
* Called by:
* DllMain
--*/
BOOL _CheckRegistrySettings(VOID)
{
HKEY key;
DWORD disposition;
DWORD keyType;
DWORD value;
DWORD cbData;
BOOL rv = FALSE;
LONG sysrc;
sysrc = RegCreateKeyEx(HKEY_CURRENT_USER,
REG_BASE,
0, /* reserved */
NULL, /* class */
REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS,
NULL, /* security attributes */
&key,
&disposition);
cbData = sizeof(value);
sysrc = RegQueryValueEx(key,
ALLOW_BACKGROUND_INPUT,
0, // reserved
&keyType, // returned type
(LPBYTE)&value, // data pointer
&cbData);
if (sysrc != ERROR_SUCCESS)
{
TRACE((WARNING_MESSAGE,
TEXT("RegQueryValueEx failed, status = %d\n"), sysrc));
goto exitpt;
}
if (keyType != REG_DWORD || cbData != sizeof(value))
{
TRACE((WARNING_MESSAGE,
TEXT("Mismatch in type/size of registry entry\n")));
goto exitpt;
}
rv = (value == 1);
exitpt:
return rv;
}
#endif // !OS_WINCE
#endif // OS_WIN32
#ifdef OS_WIN16
/*++
* Function:
* _CheckRegistrySettings
* Description:
* Checks if the ini settings are OK for running clxtshar
* "Allow Background Input" must be set to 1 for proper work
* !Win32/Win16/!WinCE
* Return value:
* TRUE if the settings are OK
* Called by:
* DllMain
--*/
BOOL _CheckIniSettings(VOID)
{
UINT nABI;
nABI = GetPrivateProfileInt("",
ALLOW_BACKGROUND_INPUT,
0,
"mstsc.ini");
return (nABI == 1);
}
#endif // OS_WIN16
/*++
* Function:
* _GetIniSettings
* Description:
* Gets the verbose level for printing debug messages
* ini file: smclient.ini
* section : clx
* key : verbose, value: 0-4 (0-(default) no debug spew, 4 all debug)
* key : GlyphEnable, value: 0(default), 1 - Enables/Disables glyph sending
* Win32/Win16/WinCE
* Called by:
* DllMain, dllentry, LibMain
--*/
VOID _GetIniSettings(VOID)
{
#ifdef OS_WINCE
g_VerboseLevel = 4;
g_GlyphEnable = 1;
#else // !OS_WINCE
CHAR szIniFileName[_MAX_PATH];
const CHAR smclient_ini[] = "\\smclient.ini";
const CHAR clx_ini_section[] = "clx";
*szIniFileName = 0;
if (!_getcwd (
szIniFileName,
sizeof(szIniFileName) - strlen(smclient_ini) - 1)
)
{
TRACE((ERROR_MESSAGE, TEXT("Current directory length too long.\n")));
}
strcat(szIniFileName, smclient_ini);
// Get the timeout value
g_VerboseLevel = GetPrivateProfileInt(
clx_ini_section,
"verbose",
g_VerboseLevel,
szIniFileName);
g_GlyphEnable = GetPrivateProfileInt(
clx_ini_section,
"GlyphEnable",
g_GlyphEnable,
szIniFileName);
#endif // !OS_WINCE
GetPrivateProfileString(
TEXT("tclient"),
TEXT("UIYesNoDisconnect"),
TEXT(YES_NO_SHUTDOWN),
g_strYesNoShutdown,
sizeof(g_strYesNoShutdown),
szIniFileName
);
GetPrivateProfileString(
TEXT("tclient"),
TEXT("UIDisconnectDialogBox"),
TEXT(DISCONNECT_DIALOG_BOX),
g_strDisconnectDialogBox,
sizeof(g_strDisconnectDialogBox),
szIniFileName
);
GetPrivateProfileString(
TEXT("tclient"),
TEXT("UIClientCaption"),
TEXT(CLIENT_CAPTION),
g_strClientCaption,
sizeof(g_strClientCaption),
szIniFileName
);
}
/*++
* Function:
* _StripGlyph
* Description:
* Strips leading and trailing blank ... BITS
* Yes, bits. The glyph must be aligned from left and right on bit
* And glyph width must be aligned on word
* Win32/Win16/WinCE
* Arguments:
* pData - the glyph bits
* pxSize - glyph width
* ySize - glyph height
* Called by:
* ClxBitmap
--*/
VOID _StripGlyph(LPBYTE pData, UINT *pxSize, UINT ySize)
{
UINT xSize = *pxSize;
UINT leftBytes, leftBits;
UINT riteBytes, riteBits;
UINT xBytes = xSize >> 3;
UINT xScan, yScan, xFinal;
BOOL bScan, bAddByte;
BYTE mask;
BYTE *pSrc, *pDst;
if (!pData || !xBytes || !ySize)
goto exitpt;
leftBytes = riteBytes = 0;
leftBits = riteBits = 0;
*pxSize = 0; // Insurance for bad exit
// Scan from left for first nonzero byte
bScan = TRUE;
while(bScan)
{
for (yScan = 0; yScan < ySize && bScan; yScan ++)
bScan = (pData[yScan*xBytes + leftBytes] == 0);
if (bScan)
{
leftBytes++;
bScan = (leftBytes < xBytes);
}
}
// Trash if blank
if (leftBytes == xBytes)
goto exitpt;
// Scan from left for most left nonzero bit
for(yScan = 0; yScan < ySize; yScan ++)
{
UINT bitc = 0;
BYTE b = pData[yScan*xBytes + leftBytes];
while (b)
{
b >>= 1;
bitc ++;
}
if (bitc > leftBits)
leftBits = bitc;
}
if (!leftBits)
// There's something wrong
goto exitpt;
leftBits = 8 - leftBits;
// So far so good. Check the ri(gh)te side
bScan = TRUE;
while(bScan)
{
for(yScan = 0 ; yScan < ySize && bScan; yScan ++)
bScan = (pData[(yScan + 1)*xBytes - 1 - riteBytes] == 0);
if (bScan)
{
riteBytes ++;
bScan = (riteBytes < xBytes);
}
}
// Scan from rite for most rite nonzero bit
for(yScan = 0; yScan < ySize; yScan ++)
{
UINT bitc = 0;
BYTE b = pData[(yScan+1)*xBytes - 1 - riteBytes];
while(b)
{
b <<= 1;
bitc ++;
}
if (bitc > riteBits)
riteBits = bitc;
}
riteBits = 8 - riteBits;
// Cool, now get the final width
xFinal = xSize - riteBits - leftBits - ((leftBytes + riteBytes) << 3);
// align it and get bytes
xFinal = (xFinal + 8) >> 3;
// Now smoothly move the bitmap to the new location
pDst = pData;
mask = BitMask[leftBits];
bAddByte = xFinal & 1;
for (yScan = 0; yScan < ySize; yScan ++)
{
pSrc = pData + yScan*xBytes + leftBytes;
for(xScan = 0; xScan < xFinal; xScan ++, pDst++, pSrc++)
{
BYTE b = *pSrc;
BYTE r;
r = (pSrc[1] & mask) >> (8 - leftBits);
b <<= leftBits;
b |= r;
(*pDst) = b;
}
pDst[-1] &= BitMask[8 - (riteBits + leftBits) % 8];
if (bAddByte)
{
(*pDst) = 0;
pDst++;
}
}
// BUG: Yes, this is a real bug. But removing it means to
// rerecord all glyph database and the impact for
// glyph recognition is not so bad
//if (bAddByte)
// xFinal++;
*pxSize = xFinal << 3;
exitpt:
;
}
/*++
* Function:
* LocalPrintMessage
* Description:
* Prints debugging and warning/error messages
* Win32/Win16/WinCE
* Arguments:
* errlevel - level of the message to print
* format - print format
* Called by:
* every TRACE line
--*/
VOID __cdecl LocalPrintMessage(INT errlevel, LPCTSTR format, ...)
{
TCHAR szBuffer[256];
TCHAR *type;
va_list arglist;
int nchr;
if (errlevel >= g_VerboseLevel)
goto exitpt;
va_start (arglist, format);
nchr = _CLX_vsnprintf (szBuffer, sizeof(szBuffer), format, arglist);
va_end (arglist);
switch(errlevel)
{
case INFO_MESSAGE: type = TEXT("CLX INF:"); break;
case ALIVE_MESSAGE: type = TEXT("CLX ALV:"); break;
case WARNING_MESSAGE: type = TEXT("CLX WRN:"); break;
case ERROR_MESSAGE: type = TEXT("CLX ERR:"); break;
default: type = TEXT("UNKNOWN:");
}
OutputDebugString(type);
OutputDebugString(szBuffer);
exitpt:
;
}
/*++
* Function:
* _ClxAssert
* Description:
* Asserts boolean expression
* Win32/Win16/WinCE
* Arguments:
* bCond - boolean condition
* filename - source file of the assertion
* line - line of the assertion
* Called by:
* every ASSERT line
--*/
VOID _ClxAssert( LPCTSTR filename, INT line)
{
TRACE((ERROR_MESSAGE,
TEXT("ASSERT: %s line %d\n"), filename, line));
DebugBreak();
}
/*
* RCLX (Remote CLient eXecution) functions
*/
/*++
* Function:
* RClx_SendClientInfo
* Description:
* Sends platform specific information to the test controller
* Allows reconnection to a previous thread on the test ctrler
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* Return value:
* TRUE on success
* Called by:
* _ClxWndProc on WM_TIMER message
--*/
BOOL
RClx_SendClientInfo(PCLXINFO pClx)
{
LPCSTR szClientInfo;
RCLXCLIENTINFOFEED ClntInfo;
RCLXFEEDPROLOG FeedProlog;
BOOL rv = FALSE;
ASSERT(pClx->hSocket != INVALID_SOCKET);
TRACE((ALIVE_MESSAGE,
TEXT("Sending Client info\n")));
#ifdef OS_WIN16
szClientInfo = "WIN16";
#endif // OS_WIN16
#ifdef OS_WIN32
#ifndef OS_WINCE
szClientInfo = "WIN32";
#else
szClientInfo = "WINCE";
#endif // OS_WINCE
#endif // OS_WIN32
strcpy(ClntInfo.szClientInfo, szClientInfo);
if (!g_nMyReconId)
{
ClntInfo.nReconnectAct = 0;
ClntInfo.ReconnectID = 0;
} else {
ClntInfo.nReconnectAct = 1;
ClntInfo.ReconnectID = g_nMyReconId;
}
FeedProlog.FeedType = FEED_CLIENTINFO;
FeedProlog.HeadSize = sizeof(ClntInfo);
FeedProlog.TailSize = 0;
rv = RClx_SendBuffer(pClx->hSocket,
&FeedProlog,
sizeof(FeedProlog));
rv = RClx_SendBuffer(pClx->hSocket,
&ClntInfo,
sizeof(ClntInfo));
if (rv)
pClx->bClientInfoSent = TRUE;
return rv;
}
/*++
* Function:
* RClx_Connect
* Description:
* Connects to the TestServer. The connect call is blocking
* After the connection succeeds "selects" the socket for
* async read, write is blocking
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* Return value:
* TRUE on success
* Called by:
* _ClxWndProc on WM_TIMER message
--*/
BOOL RClx_Connect(PCLXINFO pClx)
{
SOCKET hRemote;
BOOL rv = FALSE;
INT optval;
ASSERT(pClx);
if (pClx->hSocket != INVALID_SOCKET)
{
TRACE((WARNING_MESSAGE,
TEXT("RClx_Connect called more than once\n")));
rv = TRUE;
goto exitpt;
}
#ifdef UNICODE
TRACE((INFO_MESSAGE,
L"Connecting to: %S:%d\n", g_szTestServer, g_nPort));
#else // !UNICODE
TRACE((INFO_MESSAGE,
"Connecting to: %s:%d\n", g_szTestServer, g_nPort));
#endif // !UNICODE
hRemote = socket(AF_INET, SOCK_STREAM, 0);
if (hRemote == INVALID_SOCKET)
{
TRACE((ERROR_MESSAGE,
TEXT("Can't create socket: %d\n"), WSAGetLastError()));
goto exitpt;
}
optval = 1;
setsockopt(hRemote,
IPPROTO_TCP,
TCP_NODELAY,
(const char *)&optval,
sizeof(optval));
setsockopt(hRemote,
SOL_SOCKET,
SO_DONTLINGER,
(const char *)&optval,
sizeof(optval));
if ((!pClx->sinTestSrv.sin_addr.s_addr ||
pClx->sinTestSrv.sin_addr.s_addr == INADDR_NONE) &&
(pClx->sinTestSrv.sin_addr.s_addr = inet_addr(g_szTestServer))
== INADDR_NONE)
{
struct hostent *phostent;
if ((phostent = gethostbyname(g_szTestServer)) == NULL)
{
#ifdef UNICODE
TRACE((ERROR_MESSAGE,
L"gethostbyname for %S failed: %d\n",
g_szTestServer, WSAGetLastError()));
#else // !UNICODE
TRACE((ERROR_MESSAGE,
"gethostbyname for %s failed: %d\n",
g_szTestServer, WSAGetLastError()));
#endif // !UNICODE
goto cleanup;
}
pClx->sinTestSrv.sin_addr.s_addr = *(u_long*)(phostent->h_addr);
}
pClx->sinTestSrv.sin_family = PF_INET;
pClx->sinTestSrv.sin_port = htons(g_nPort);
if (connect(hRemote,
(SOCKADDR *)&(pClx->sinTestSrv),
sizeof(pClx->sinTestSrv))
== SOCKET_ERROR)
{
#ifdef UNICODE
TRACE((WARNING_MESSAGE,
L"Can't connect to %S: %d\n",
g_szTestServer, WSAGetLastError()));
#else // !UNICODE
TRACE((WARNING_MESSAGE,
"Can't connect to %s: %d\n",
g_szTestServer, WSAGetLastError()));
#endif // !UNICODE
goto cleanup;
}
pClx->bClientInfoSent = FALSE;
pClx->hSocket = hRemote;
if (WSAAsyncSelect(hRemote, g_hWindow, WM_WSOCK, FD_CLOSE|FD_READ) ==
SOCKET_ERROR)
{
TRACE((ERROR_MESSAGE,
TEXT("WSAAsyncSelect failed: %d\n"),
WSAGetLastError()));
goto cleanup;
}
// If the socket is disconnected somewhere between connect and select
// we'll miss the notification, so try to read
// and have chance to fail
PostMessage(g_hWindow, WM_WSOCK, hRemote, FD_READ);
rv = TRUE;
exitpt:
return rv;
cleanup:
pClx->hSocket = hRemote;
RClx_Disconnect(pClx);
return rv;
}
/*++
* Function:
* RClx_Disconnect
* Description:
* Gracefully closes the socket to the TestServer. Deinitializes
* some vars in the context. Removes garbage windows
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* Called by:
* ClxTerminate
* RClx_Connect on error
* RClx_SendEvent on EVENT_DIACONNECT
* _ClxWndProc on WM_WSOCK and error
--*/
VOID RClx_Disconnect(PCLXINFO pClx)
{
INT recvresult;
CHAR tBuf[128];
if (pClx && pClx->hSocket != INVALID_SOCKET)
{
WSAAsyncSelect(pClx->hSocket, g_hWindow, 0, 0);
shutdown(pClx->hSocket, SD_SEND);
do {
recvresult = recv(pClx->hSocket, tBuf, sizeof(tBuf), 0);
} while (recvresult && recvresult != SOCKET_ERROR);
closesocket(pClx->hSocket);
pClx->hSocket = INVALID_SOCKET;
}
// Zero some vars
pClx->hwndInput = NULL;
pClx->RClxInfo.szHydraServer[0] = 0;
if (pClx->alive)
{
// attempt to close the client
_AttemptToCloseTheClient();
g_pClx->bCloseTrys = TRUE;
}
else if (g_hWindow && !g_nMyReconId)
// Retry to connect
{
TRACE((INFO_MESSAGE,
TEXT("Disconnected from test server.Trying to reconnect\n")));
// If there's no timer looping
// Start connecting by posting a message
if (!pClx->uiReconnectTimer)
pClx->uiReconnectTimer = SetTimer(g_hWindow, RCLX_RECONNECT_TIMERID,
RCLX_RECONNECTELAPSETIME, NULL);
if (!pClx->uiReconnectTimer)
PostMessage(g_hWindow, WM_TIMER, 0, 0);
}
}
/*++
* Function:
* RClx_SendBuffer
* Description:
* Sends a buffer thru socket. The socket must be BLOCKING
* so, all the buffer is sent after this function exits
* Win32/Win16/WinCE
* Arguments:
* hSocket - the socket
* pBuffer - the buffer
* nSize - buffer size
* Return value:
* TRUE on success, FALSE if the connection failed
* Called by:
* RClx_SendEvent
* RClx_SendBitmap
*
--*/
BOOL
RClx_SendBuffer(SOCKET hSocket, PVOID pBuffer, DWORD nSize)
{
INT result = 0;
DWORD nBytesToSend = nSize;
UINT nBytesToSend2;
BYTE HUGEMOD *pBuffPtr = pBuffer;
ASSERT(hSocket != INVALID_SOCKET);
ASSERT(pBuffer);
if (!nSize)
goto exitpt;
do {
#ifdef OS_WIN16
nBytesToSend2 = (UINT)((nBytesToSend > 0x1000)?0x1000:nBytesToSend);
#else
nBytesToSend2 = nBytesToSend;
#endif // OS_WIN16
result = send(hSocket, pBuffPtr, nBytesToSend2, 0);
if (result != SOCKET_ERROR)
{
nBytesToSend -= result;
pBuffPtr += result;
} else
if (WSAGetLastError() == WSAEWOULDBLOCK)
{
// The socket is blocked, wait on select until it's writable
FD_SET fd;
FD_ZERO(&fd);
FD_SET(hSocket, &fd);
select(-1, NULL, &fd, NULL, NULL);
}
} while ((result != SOCKET_ERROR || WSAGetLastError() == WSAEWOULDBLOCK) &&
nBytesToSend);
exitpt:
return (result != SOCKET_ERROR);
}
/*++
* Function:
* RClx_SendEvent
* Description:
* Sends an event to the TestServer
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* Event - the event
* Return value:
* TRUE on success
* Called by:
* ClxEvent
--*/
BOOL RClx_SendEvent(PCLXINFO pClx, CLXEVENT Event, DWORD dwParam)
{
BOOL rv = FALSE;
if (Event == CLX_EVENT_DISCONNECT)
{
pClx->alive = FALSE;
RClx_Disconnect(pClx);
}
if (Event == CLX_EVENT_CONNECT)
{
RCLXFEEDPROLOG FeedProlog;
pClx->alive = TRUE;
FeedProlog.FeedType = FEED_CONNECT;
FeedProlog.HeadSize = 0;
FeedProlog.TailSize = 0;
rv = RClx_SendBuffer(pClx->hSocket,
&FeedProlog,
sizeof(FeedProlog));
}
if (Event == CLX_EVENT_LOGON)
{
RCLXFEEDPROLOG FeedProlog;
UINT32 uSessionID = dwParam;
pClx->alive = TRUE;
FeedProlog.FeedType = FEED_LOGON;
FeedProlog.HeadSize = sizeof(uSessionID);
FeedProlog.TailSize = 0;
rv = RClx_SendBuffer(pClx->hSocket,
&FeedProlog,
sizeof(FeedProlog));
rv = RClx_SendBuffer(pClx->hSocket,
&uSessionID,
sizeof(uSessionID));
}
return rv;
}
/*++
* Function:
* RClx_SendClipbaord
* Description:
* Sends the current clipbaord content to the test controller
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* uiFormat - desired clipboard format
* nSize - size of the data
* pClipboard - the clipboard data
* Return value:
* TRUE on success
* Called by:
* _ClxWndProc on WM_CLIPBOARD message
--*/
BOOL
RClx_SendClipboard(
PCLXINFO pClx,
UINT uiFormat,
UINT32 nSize,
VOID HUGEMOD *pClipboard)
{
BOOL rv = FALSE;
RCLXFEEDPROLOG FeedProlog;
RCLXCLIPBOARDFEED RClxClipboard;
ASSERT(pClx);
// if nSize == 0, then pClipboard == 0
ASSERT((nSize && pClipboard) || (!nSize && !pClipboard));
RClxClipboard.uiFormat = uiFormat;
RClxClipboard.nClipBoardSize = nSize;
FeedProlog.FeedType = FEED_CLIPBOARD;
FeedProlog.HeadSize = sizeof(RClxClipboard);
FeedProlog.TailSize = nSize;
rv = RClx_SendBuffer(pClx->hSocket,
&FeedProlog,
sizeof(FeedProlog));
if (!rv)
goto exitpt;
TRACE((INFO_MESSAGE,
TEXT("Sending the clipboard, FormatID=%d, Size=%ld\n"),
uiFormat, nSize));
rv = RClx_SendBuffer(pClx->hSocket,
&RClxClipboard,
sizeof(RClxClipboard));
if (!rv)
goto exitpt;
if (pClipboard)
rv = RClx_SendBuffer(pClx->hSocket,
pClipboard,
nSize);
exitpt:
return rv;
}
/*++
* Function:
* RClx_SendTextOut
* Description:
* Sends text out order to the smclient in RCLX mode
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* pText - unicode string
* textLength - the string length
* Return value:
* TRUE on success
* Called by:
* ClxTextOut
--*/
BOOL
RClx_SendTextOut(PCLXINFO pClx, PVOID pText, INT textLength)
{
BOOL rv = FALSE;
RCLXFEEDPROLOG FeedProlog;
RCLXTEXTFEED FeedText;
UINT16 *szString;
ASSERT(pClx);
if (!pText || !textLength)
goto exitpt;
FeedProlog.FeedType = FEED_TEXTOUT;
FeedProlog.HeadSize = sizeof(FeedText);
FeedProlog.TailSize = (textLength + 1) * sizeof(UINT16);
szString = _alloca((textLength + 1) * sizeof(UINT16));
if (!szString)
goto exitpt;
memcpy(szString, pText, textLength * sizeof(UINT16));
szString[textLength] = 0;
rv = RClx_SendBuffer(pClx->hSocket,
&FeedProlog,
sizeof(FeedProlog));
if (!rv)
goto exitpt;
rv = RClx_SendBuffer(pClx->hSocket,
&FeedText,
sizeof(FeedText));
if (!rv)
goto exitpt;
rv = RClx_SendBuffer(pClx->hSocket,
szString,
FeedProlog.TailSize);
exitpt:
return rv;
}
/*++
* Function:
* RClx_SendBitmap
* Description:
* Sends a bitmap to the TestController
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* cxSize - bitmap width
* cySize - bitmap height
* pBuffer - pointer to bitmap bits
* nBmiSize- BitmapInfo length
* pBmi - pointer to BITMAPINFO
* Return value:
* TRUE on success
* Called by:
* ClxBitmap
--*/
BOOL RClx_SendBitmap(
PCLXINFO pClx,
UINT cxSize,
UINT cySize,
PVOID pBuffer,
UINT nBmiSize,
PVOID pBmi)
{
BOOL rv = FALSE;
RCLXFEEDPROLOG FeedProlog;
RCLXBITMAPFEED FeedBitmap;
UINT nExtraBmi;
UINT nBmpSize;
BYTE *pLocalBits;
ASSERT(pClx);
ASSERT(pClx->hSocket != INVALID_SOCKET);
if (nBmiSize > sizeof(FeedBitmap.BitmapInfo))
{
TRACE((WARNING_MESSAGE,
TEXT("BitmapInfo size larger than expected. Ignoring\n")));
goto exitpt;
}
// Get bitmap size
if (!nBmiSize)
{
nBmpSize = (cxSize * cySize ) >> 3;
} else {
nBmpSize = (UINT)(((PBITMAPINFO)pBmi)->bmiHeader.biSizeImage);
if (!nBmpSize)
nBmpSize = (cxSize * cySize *
((PBITMAPINFO)pBmi)->bmiHeader.biBitCount) >> 3;
}
pLocalBits = _alloca(nBmpSize);
if (!pLocalBits)
goto exitpt;
memcpy(pLocalBits, pBuffer, nBmpSize);
if (!nBmiSize)
{
// this is glyph, strip it !
_StripGlyph(pLocalBits, &cxSize, cySize);
nBmpSize = (cxSize * cySize ) >> 3;
}
// Prepare the prolog
FeedProlog.FeedType = FEED_BITMAP;
nExtraBmi = sizeof(FeedBitmap.BitmapInfo) - nBmiSize;
FeedProlog.HeadSize = sizeof(FeedBitmap) - nExtraBmi;
FeedProlog.TailSize = nBmpSize;
FeedBitmap.bmpsize = nBmpSize;
FeedBitmap.bmisize = nBmiSize;
FeedBitmap.xSize = cxSize;
FeedBitmap.ySize = cySize;
memcpy(&FeedBitmap.BitmapInfo,
pBmi,
sizeof(FeedBitmap.BitmapInfo) - nExtraBmi);
if (!RClx_SendBuffer(pClx->hSocket,
&FeedProlog,
sizeof(FeedProlog)))
{
TRACE((ERROR_MESSAGE,
TEXT("FEED_BITMAP:Can't send the prolog. WSAGetLastError=%d\n"),
WSAGetLastError()));
goto exitpt;
}
if (!RClx_SendBuffer(pClx->hSocket,
&FeedBitmap,
FeedProlog.HeadSize))
{
TRACE((ERROR_MESSAGE,
TEXT("FEED_BITMAP:Can't send the header.\n")));
goto exitpt;
}
if (!RClx_SendBuffer(pClx->hSocket, pLocalBits, FeedProlog.TailSize))
{
TRACE((ERROR_MESSAGE,
TEXT("FEED_BITMAP:Can't send the bits.\n")));
goto exitpt;
}
rv = TRUE;
exitpt:
return rv;
}
/*++
* Function:
* _ClxWndProc
* Description:
* Dispatche messages procedure. Dispatches WM_TIMER and
* WM_WSOCK - socket message. WM_TIMER drives _OnBackground
* and connection retrys
* Win32/Win16/WinCE
* Arguments:
* hwnd - window handle, same as g_hWindow
* uiMessage - message Id
* wParam - word param
* lParam - long param
* Return value:
* LRESULT - standard for window procs
--*/
LRESULT CALLBACK LOADDS _ClxWndProc( HWND hwnd,
UINT uiMessage,
WPARAM wParam,
LPARAM lParam)
{
SOCKET hSocket;
PCLXINFO pClx = g_pClx;
switch (uiMessage)
{
case WM_WSOCK:
if (!pClx)
{
TRACE((WARNING_MESSAGE,
TEXT("Winsock message before context initialization\n")));
goto exitpt;
}
hSocket = (SOCKET)wParam;
if (hSocket != pClx->hSocket)
{
TRACE((WARNING_MESSAGE,
TEXT("Notification for unknown socket\n")));
goto exitpt;
}
if (WSAGETSELECTERROR(lParam))
{
TRACE((WARNING_MESSAGE,
TEXT("Winsock error: %d\n"), WSAGETSELECTERROR(lParam)));
RClx_Disconnect(pClx);
goto exitpt;
}
if (WSAGETSELECTEVENT(lParam) == FD_CLOSE)
{
TRACE((INFO_MESSAGE,
TEXT("Connection to the test server lost\n")));
RClx_Disconnect(pClx);
} else if (WSAGETSELECTEVENT(lParam) == FD_READ)
{
if (!RClx_ReadRequest(pClx) &&
WSAGetLastError() != WSAEWOULDBLOCK)
{
TRACE((WARNING_MESSAGE,
TEXT("Socket read error: %d\n"), WSAGetLastError()));
RClx_Disconnect(pClx);
}
} else {
TRACE((WARNING_MESSAGE,
TEXT("Unexpected winsock notification #%d\n"),
WSAGETSELECTEVENT(lParam)));
goto exitpt;
}
break;
case WM_TIMER: // Start connection or background process
{
BOOL bRunRdp = FALSE;
HWND hConBtn, hServerBox;
#ifndef OS_WINCE
// no resolution box in CE
HWND hResolutionBox;
#endif
CHAR szResSelect[20];
if (!pClx)
{
TRACE((WARNING_MESSAGE,
TEXT("Timer message before context initialization\n")));
goto exitpt;
}
if (g_uiBackgroundTimer == (UINT_PTR)wParam)
// This is our background thread
{
_OnBackground(pClx);
goto exitpt;
}
if (!g_nMyReconId && !pClx->hwndDialog)
{
pClx->hwndDialog = _FindTopWindow(NULL,
g_strClientCaption,
g_hRDPInst);
goto check_timer;
}
if (!g_nMyReconId && pClx->hwndDialog &&
!GetDlgItem(pClx->hwndDialog, UI_IDC_CONNECT))
{
TRACE((INFO_MESSAGE, TEXT("No dialog box yet. Waiting...\n")));
goto check_timer;
}
if (pClx->alive && pClx->hSocket == INVALID_SOCKET)
{
TRACE((INFO_MESSAGE,
TEXT("Client is alive, no socket to the test server\n")));
//_AttemptToCloseTheClient();
goto exitpt;
}
// Check if we are connected
if (pClx->hSocket == INVALID_SOCKET && (!RClx_Connect(pClx)))
goto check_timer;
// We are connected, send the client info
if (!pClx->bClientInfoSent)
RClx_SendClientInfo(pClx);
// if we are reconnecting we don't have UI to set params
if (g_nMyReconId)
break;
// Check if connect dialog is OK
if (!pClx->hwndDialog)
goto check_timer;
if (!strlen(pClx->RClxInfo.szHydraServer))
{
TRACE((INFO_MESSAGE,
TEXT("Connect info is not received yet\n")));
goto check_timer;
}
// set something in server listbox, to enable connect button
{
HWND hwndCombo = GetDlgItem(pClx->hwndDialog, UI_IDC_SERVER);
SetDlgItemText(pClx->hwndDialog, UI_IDC_SERVER, TEXT("vladimis"));
#ifdef OS_WIN32
PostMessage(pClx->hwndDialog,
WM_COMMAND,
MAKEWPARAM(UI_IDC_SERVER, CBN_EDITCHANGE),
(LPARAM)hwndCombo);
#endif
#ifdef OS_WIN16
PostMessage(pClx->hwndDialog,
WM_COMMAND,
UI_IDC_SERVER,
MAKELONG(hwndCombo, CBN_EDITCHANGE));
#endif
}
// Check the connect button state
hConBtn = GetDlgItem(pClx->hwndDialog, UI_IDC_CONNECT);
if (!hConBtn)
{
TRACE((WARNING_MESSAGE,
TEXT("Can't get Connect button\n")));
goto check_timer;
}
if (!IsWindowEnabled(hConBtn))
{
TRACE((INFO_MESSAGE,
TEXT("Connect button is not enabled yet\n")));
goto check_timer;
}
if (
// Check for valid controls
(hServerBox = GetDlgItem(pClx->hwndDialog, UI_IDC_SERVER))
#ifndef OS_WINCE
// no resolution box in WinCE
&&
(hResolutionBox = GetDlgItem(pClx->hwndDialog, UI_IDC_RESOLUTION))
#endif // !OS_WINCE
)
{
TRACE((INFO_MESSAGE,
TEXT("The client is ready to launch.\n")));
} else
goto check_timer;
bRunRdp = TRUE;
check_timer:
if (!bRunRdp)
{
TRACE((INFO_MESSAGE,
TEXT("Can't start the client yet. Waiting\n")));
if (!pClx->uiReconnectTimer)
pClx->uiReconnectTimer = SetTimer(hwnd, RCLX_RECONNECT_TIMERID,
RCLX_RECONNECTELAPSETIME, NULL);
if (!pClx->uiReconnectTimer)
{
TRACE((WARNING_MESSAGE,
TEXT("Can't create timer. Start timer simulation\n")));
PostMessage(hwnd, WM_TIMER, 0, 0);
}
goto exitpt;
} else {
if (pClx->uiReconnectTimer)
{
KillTimer(g_hWindow, pClx->uiReconnectTimer);
pClx->uiReconnectTimer = 0;
}
}
// Check that we have clear view for launch
// no error boxes laying arround
if (_GarbageCollecting(pClx, TRUE))
goto exitpt;
#ifdef UNICODE
TRACE((INFO_MESSAGE,
TEXT("Trying to connect to Hydra server: %S\n"),
pClx->RClxInfo.szHydraServer));
#else
TRACE((INFO_MESSAGE,
TEXT("Trying to connect to Hydra server: %s\n"),
pClx->RClxInfo.szHydraServer));
#endif // UNICODE
// Set server name
#ifdef UNICODE
_CLX_SetDlgItemTextA
#else // !UNICODE
SetDlgItemText
#endif // !UNICODE
(pClx->hwndDialog, UI_IDC_SERVER, pClx->RClxInfo.szHydraServer);
// Set the resolution
_snprintf(szResSelect, sizeof(szResSelect), "%dx%d",
pClx->RClxInfo.xResolution,
pClx->RClxInfo.yResolution);
#ifndef OS_WINCE
// no resolution box
SendMessage(hResolutionBox, CB_SELECTSTRING, 0, (LPARAM)szResSelect);
#endif // !OS_WINCE
// set the low speed option
CheckDlgButton(pClx->hwndDialog,
UI_IDC_CONNECTION,
(pClx->RClxInfo.bLowSpeed)?BST_CHECKED:BST_UNCHECKED
);
// set the persistent cache option
CheckDlgButton(pClx->hwndDialog,
UI_IDC_BITMAP_PERSISTENCE,
(pClx->RClxInfo.bPersistentCache)?BST_CHECKED
:BST_UNCHECKED
);
// Now connect
PostMessage(pClx->hwndDialog, WM_COMMAND, UI_IDC_CONNECT, 0);
}
break;
case WM_CLIPBOARD:
{
HGLOBAL ghClipboard = NULL;
HGLOBAL ghNewData = NULL;
BOOL bOpened = FALSE;
BOOL bRetry = TRUE;
VOID HUGEMOD *pClipboard = NULL;
UINT32 nSize = 0;
UINT uiFormat = 0;
BOOL bReentered;
#ifndef OS_WIN32
pClx->bClipboardReenter++;
bReentered = pClx->bClipboardReenter != 0;
#else
bReentered = InterlockedIncrement(&pClx->bClipboardReenter) != 0;
#endif // OS_WIN32
if (bReentered)
{
TRACE((WARNING_MESSAGE, TEXT("WM_CLIPBOARD reentered\n")));
bRetry = FALSE;
goto clpcleanup;
}
// lParam contains the desired format
uiFormat = (UINT)lParam;
// WinCE version doesn't support clipboard
#ifndef OS_WINCE
if (!OpenClipboard(hwnd))
{
TRACE((ERROR_MESSAGE, TEXT("Can't open the clipboard. retrying\n")));
goto clpcleanup;
}
bOpened = TRUE;
// if uiFormat is zero then return empty clipbrd body
// with the first available format
if (!uiFormat)
{
uiFormat = EnumClipboardFormats(uiFormat);
TRACE((INFO_MESSAGE,
TEXT("Responging on format request. FormatID=%d\n"),
uiFormat));
goto send_clipboard;
}
ghClipboard = GetClipboardData((UINT)uiFormat);
if (!ghClipboard)
{
TRACE((WARNING_MESSAGE, TEXT("Clipboard is empty.\n")));
} else {
Clp_GetClipboardData(uiFormat,
ghClipboard,
&nSize,
&ghNewData);
if (ghNewData)
ghClipboard = ghNewData;
pClipboard = GlobalLock(ghClipboard);
if (!pClipboard)
{
TRACE((ERROR_MESSAGE,
TEXT("Can't lock the clipboard. retrying\n")));
goto clpcleanup;
}
}
send_clipboard:
#else // !OS_WINCE
TRACE((WARNING_MESSAGE, TEXT("WinCE: clipboard not supported\n")));
#endif // !OS_WINCE
if (!RClx_SendClipboard(pClx, uiFormat, nSize, pClipboard))
{
TRACE((ERROR_MESSAGE, TEXT("Can't send the clipboard\n")));
bRetry = FALSE;
goto clpcleanup;
}
bRetry = FALSE;
clpcleanup:
#ifndef OS_WINCE
if (pClipboard)
GlobalUnlock(ghClipboard);
if (bOpened)
CloseClipboard();
if (ghNewData)
GlobalFree(ghNewData);
#endif // !OS_WINCE
#ifndef OS_WIN32
pClx->bClipboardReenter--;
#else
InterlockedDecrement(&pClx->bClipboardReenter);
#endif // OS_WIN32
if (bRetry)
// Retry to send the clipboard
PostMessage(hwnd, WM_CLIPBOARD, 0, lParam);
}
break;
case WM_CLOSE:
if (!DestroyWindow(hwnd))
{
TRACE((ERROR_MESSAGE,
TEXT("Can't destroy window. GetLastError: %d\n"),
_CLXWINDOW_CLASS,
GetLastError()));
}
break;
default:
return DefWindowProc(hwnd, uiMessage, wParam, lParam);
}
exitpt:
return 0;
}
/*++
* Function:
* RClx_CreateWindow
* Description:
* Creates g_hWindow for dispatching winsocket and timer
* messages
* Win32/Win16/WinCE
* Arguments:
* hInstance - Dll instance handle
* Called by:
* ClxInitialize
--*/
VOID RClx_CreateWindow(HINSTANCE hInstance)
{
WNDCLASS wc;
#ifdef OS_WIN32
DWORD dwLastErr;
#endif
memset(&wc, 0, sizeof(wc));
wc.lpfnWndProc = _ClxWndProc;
wc.hInstance = hInstance;
wc.lpszClassName = TEXT(_CLXWINDOW_CLASS);
if (!RegisterClass (&wc)
#ifdef OS_WIN32
&&
(dwLastErr = GetLastError()) &&
dwLastErr != ERROR_CLASS_ALREADY_EXISTS
#endif // OS_WIN32
)
{
TRACE((WARNING_MESSAGE,
TEXT("Can't register class. GetLastError=%d\n"),
GetLastError()));
goto exitpt;
}
g_hWindow = CreateWindow(
TEXT(_CLXWINDOW_CLASS),
NULL, // Window name
0, // dwStyle
0, // x
0, // y
0, // nWidth
0, // nHeight
NULL, // hWndParent
NULL, // hMenu
hInstance,
NULL); // lpParam
if (!g_hWindow)
{
TRACE((WARNING_MESSAGE,
TEXT("Can't create window to handle socket messages\n")));
goto exitpt;
}
g_uiBackgroundTimer = SetTimer(g_hWindow,
RCLX_BACKGNDTIMERID,
RCLX_TIMERELAPSETIME,
NULL);
exitpt:
;
}
/*++
* Function:
* RClx_DestroyWindow
* Description:
* Destroys g_hWindow created in RClx_CreateWindow
* Win32/Win16/WinCE
* Called by:
* ClxTerminate
--*/
VOID RClx_DestroyWindow(VOID)
{
if (g_hWindow)
{
if (g_uiBackgroundTimer)
{
KillTimer(g_hWindow, g_uiBackgroundTimer);
g_uiBackgroundTimer = 0;
}
PostMessage(g_hWindow, WM_CLOSE, 0, 0);
if (!UnregisterClass(TEXT(_CLXWINDOW_CLASS), g_hInstance))
{
TRACE((WARNING_MESSAGE,
TEXT("Can't unregister class: %s. GetLastError: %d\n"),
_CLXWINDOW_CLASS,
GetLastError()));
}
g_hWindow = NULL;
}
}
/*++
* Function:
* RClx_ReadRequest
* Description:
* CLXINFO contains a buffer for incoming requests
* this function trys to receive it all. If the socket blocks
* the function exits with OK and next time FD_READ is received will
* be called again. If a whole request is received it calls
* RClx_ProcessRequest
* Win32/Win16/WinCE
* Arguments:
* pClx - the context
* Return value:
* TRUE if reading doesn't fail
* Called by:
* _ClxWndProc on FD_READ event
--*/
BOOL RClx_ReadRequest(PCLXINFO pClx)
{
INT recvres;
INT nErrorCode = 0;
BYTE HUGEMOD *pRecv = NULL;
UINT32 nRecv = 0;
BYTE TempBuff[256];
ASSERT(pClx);
ASSERT(pClx->hSocket != INVALID_SOCKET);
do {
if (!pClx->bPrologReceived)
{
pRecv = (BYTE HUGEMOD *)&(pClx->RClxReqProlog)
+ pClx->nBytesReceived;
nRecv = sizeof(pClx->RClxReqProlog) - pClx->nBytesReceived;
#ifndef OS_WINCE
recvres = recv(pClx->hSocket,
pRecv,
(int)nRecv,
0);
nErrorCode = WSAGetLastError();
#else // OS_WINCE
recvres = AsyncRecv(pClx->hSocket,
pRecv,
nRecv,
&nErrorCode);
#endif // OS_WINCE
if (recvres != SOCKET_ERROR)
pClx->nBytesReceived += recvres;
else
if (nErrorCode != WSAEWOULDBLOCK)
TRACE((ERROR_MESSAGE, TEXT("recv error: %d, request for 0x%lx bytes\n"),
nErrorCode,
nRecv
));
if (pClx->nBytesReceived == sizeof(pClx->RClxReqProlog))
{
UINT32 nReqSize = pClx->RClxReqProlog.ReqSize;
pClx->nBytesReceived = 0;
pClx->bPrologReceived = TRUE;
if (nReqSize)
// If request body is empty, don't allocate
{
if (!pClx->pRequest)
retry_alloc:
{
pClx->pRequest =
_CLXALLOC(nReqSize);
if (pClx->pRequest)
pClx->nReqAllocSize = nReqSize;
else
pClx->nReqAllocSize = 0;
}
else if (nReqSize > pClx->nReqAllocSize)
{
pClx->pRequest =
_CLXREALLOC(pClx->pRequest,
nReqSize);
if (pClx->pRequest)
pClx->nReqAllocSize = nReqSize;
else
{
pClx->nReqAllocSize = 0;
goto retry_alloc;
}
}
if (!pClx->pRequest)
{
TRACE((WARNING_MESSAGE,
TEXT("Can't alloc 0x%lx bytes for receiving a request. GetLastError=%d. Skipping\n"),
nReqSize,
GetLastError()));
}
}
}
} else {
if (pClx->nBytesReceived == pClx->RClxReqProlog.ReqSize)
goto process_req;
if (pClx->pRequest)
{
pRecv = (BYTE HUGEMOD *)pClx->pRequest
+ pClx->nBytesReceived;
nRecv = pClx->RClxReqProlog.ReqSize - pClx->nBytesReceived;
} else {
// point to a temp buffer if pReques is not allocated
pRecv = TempBuff;
nRecv = sizeof(TempBuff);
}
#ifdef OS_WIN16
// WFW has problems with receiving big buffers
if (nRecv >= 0x1000)
nRecv = 0x1000;
#endif // OS_WIN16
#ifndef OS_WINCE
recvres = recv(pClx->hSocket,
pRecv,
(int)nRecv,
0);
nErrorCode = WSAGetLastError();
#else // OS_WINCE
recvres = AsyncRecv(pClx->hSocket,
pRecv,
nRecv,
&nErrorCode);
#endif // OS_WINCE
if (recvres != SOCKET_ERROR)
{
pClx->nBytesReceived += recvres;
} else {
if (nErrorCode != WSAEWOULDBLOCK)
{
TRACE((ERROR_MESSAGE,
TEXT("recv error: %d, request for 0x%lx bytes\n"),
nErrorCode,
nRecv
));
TRACE((ERROR_MESSAGE,
TEXT("ReqProlog was received. Type=%d, Size=%d\n"),
pClx->RClxReqProlog.ReqType,
pClx->RClxReqProlog.ReqSize
));
}
}
process_req:
if (pClx->nBytesReceived == pClx->RClxReqProlog.ReqSize)
{
pClx->nBytesReceived = 0;
pClx->bPrologReceived = FALSE;
RClx_ProcessRequest(pClx);
}
}
} while ((recvres != 0 || nRecv == 0) && // recvres will be 0 if nRecv is 0
recvres != SOCKET_ERROR);
// return FALSE if error is occured
if (!recvres)
return FALSE; // connection was gracefully closed
if (recvres == SOCKET_ERROR)
{
if (nErrorCode == WSAEWOULDBLOCK)
return TRUE; // the call will block, but ok
else
return FALSE; // other SOCKET_ERROR
}
return TRUE; // it is ok
}
/*++
* Function:
* RClx_DataArrived
* Description:
* Processes request for data
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* pRClxData - the request
* Called by:
* RClx_ProcessRequest
--*/
VOID
RClx_DataArrived(PCLXINFO pClx, PRCLXDATA pRClxData)
{
ASSERT(pRClxData);
switch(pRClxData->uiType)
{
case DATA_BITMAP:
{
PREQBITMAP pReqBitmap = (PREQBITMAP)pRClxData->Data;
RCLXDATA Response;
RCLXFEEDPROLOG RespProlog;
HANDLE hDIB = NULL;
DWORD dwDIBSize = 0;
TRACE((INFO_MESSAGE,
TEXT("REQDATA_BITMAP arrived\n")));
if (pRClxData->uiSize != sizeof(*pReqBitmap))
ASSERT(0);
// process differently on WINCE (no shadow bitmap)
//
if (pClx->hdcShadowBitmap)
_GetDIBFromBitmap(pClx->hdcShadowBitmap,
pClx->hShadowBitmap,
&hDIB,
(INT)pReqBitmap->left,
(INT)pReqBitmap->top,
(INT)pReqBitmap->right,
(INT)pReqBitmap->bottom);
else {
TRACE((WARNING_MESSAGE, TEXT("Shadow bitmap is NULL\n")));
}
if (!hDIB)
dwDIBSize = 0;
else
dwDIBSize = (DWORD)GlobalSize(hDIB);
RespProlog.FeedType = FEED_DATA;
RespProlog.HeadSize = sizeof(Response) + dwDIBSize;
RespProlog.TailSize = 0;
Response.uiType = DATA_BITMAP;
Response.uiSize = dwDIBSize;
RClx_SendBuffer(pClx->hSocket, &RespProlog, sizeof(RespProlog));
RClx_SendBuffer(pClx->hSocket, &Response, sizeof(Response));
if (hDIB)
{
LPVOID pDIB = GlobalLock(hDIB);
if (pDIB)
{
RClx_SendBuffer(pClx->hSocket, pDIB, dwDIBSize);
GlobalUnlock(hDIB);
}
GlobalFree(hDIB);
}
}
break;
case DATA_VC:
{
LPSTR szChannelName;
LPVOID pData;
DWORD dwSize;
szChannelName = (LPSTR)(pRClxData->Data);
pData = ((BYTE *)(pRClxData->Data)) + MAX_VCNAME_LEN;
dwSize = pRClxData->uiSize - MAX_VCNAME_LEN;
if (pRClxData->uiSize < MAX_VCNAME_LEN)
{
TRACE((ERROR_MESSAGE, TEXT("DATA_VC: uiSize too small\n")));
goto exitpt;
}
if (strlen(szChannelName) > MAX_VCNAME_LEN - 1)
{
TRACE((ERROR_MESSAGE, TEXT("DATA_VC: channel name too long\n")));
goto exitpt;
}
_CLXSendDataVC(szChannelName, pData, dwSize);
}
break;
default:
TRACE((WARNING_MESSAGE,
TEXT("Unknown data request type. Ignoring\n")));
}
exitpt:
;
}
/*++
* Function:
* RClx_ProcessRequest
* Description:
* Dispatches a request received by RClx_ReadRequest
* Win32/Win16/WinCE
* Arguments:
* pClx - context
* Called by:
* RClx_ReadRequest
--*/
VOID RClx_ProcessRequest(PCLXINFO pClx)
{
PRCLXMSG pClxMsg;
DWORD ReqType;
HWND hContainer;
PRCLXREQPROLOG pReqProlog;
LPVOID pReq;
ASSERT(pClx);
pReqProlog = &(pClx->RClxReqProlog);
ASSERT(pReqProlog);
pReq = pClx->pRequest;
ReqType = pReqProlog->ReqType;
switch(ReqType)
{
case REQ_MESSAGE:
if (!pReq || pReqProlog->ReqSize != sizeof(*pClxMsg))
{
TRACE((WARNING_MESSAGE,
TEXT("REQ_MESSAGE with different size. Ignoring\n")));
goto exitpt;
}
pClxMsg = (PRCLXMSG)pReq;
if(!pClx->hwndInput)
{
hContainer = _FindWindow(pClx->hwndMain, TEXT(NAME_CONTAINERCLASS));
if (hContainer)
pClx->hwndInput = _FindWindow(hContainer, TEXT(NAME_INPUT));
else
pClx->hwndInput = NULL;
if (!pClx->hwndInput)
{
TRACE((WARNING_MESSAGE,
TEXT("Can't find input window.")
TEXT(" Discarding any user input\n" )));
goto exitpt;
}
}
SendMessage(pClx->hwndInput,
(UINT)pClxMsg->message,
(WPARAM)pClxMsg->wParam,
(LPARAM)pClxMsg->lParam);
break;
case REQ_CONNECTINFO:
if (!pReq || pReqProlog->ReqSize != sizeof(RCLXCONNECTINFO))
{
TRACE((WARNING_MESSAGE,
TEXT("REQ_CONNECTINFO with different size. Ignoring\n")));
goto exitpt;
}
TRACE((INFO_MESSAGE, TEXT("CONNECTINFO received\n")));
memcpy(&pClx->RClxInfo, pReq, sizeof(pClx->RClxInfo));
// Kick _ClxWndProc to connect
PostMessage(g_hWindow, WM_TIMER, 0, 0);
break;
case REQ_GETCLIPBOARD:
if (!pReq || pReqProlog->ReqSize != sizeof(RCLXCLIPBOARD))
{
TRACE((WARNING_MESSAGE,
TEXT("REQ_GETCLIPBOARD with different size. Ignoring\n")));
goto exitpt;
}
TRACE((INFO_MESSAGE, TEXT("REQ_GETCLIPBOARD received. FormatId=%d\n"),
((PRCLXCLIPBOARD)pReq)->uiFormat
));
// Kick _ClxWndProc to send our clipboard
PostMessage(g_hWindow, WM_CLIPBOARD, 0,
(LPARAM)((PRCLXCLIPBOARD)pReq)->uiFormat);
// lParam contains the required format
break;
case REQ_SETCLIPBOARD:
{
UINT32 nClipSize;
if (!pReq || pReqProlog->ReqSize < sizeof(RCLXCLIPBOARD))
{
TRACE((WARNING_MESSAGE,
TEXT("REQ_SETCLIPBOARD with wrong size. Ignoring\n")));
goto exitpt;
}
TRACE((INFO_MESSAGE, TEXT("REQ_SETCLIPBOARD received. FormatId=%d, Clipboard size = %d\n"),
((PRCLXCLIPBOARD)pReq)->uiFormat,
pReqProlog->ReqSize - sizeof(UINT)
));
nClipSize = pReqProlog->ReqSize - sizeof(((PRCLXCLIPBOARD)pReq)->uiFormat);
_SetClipboard(
(UINT)((PRCLXCLIPBOARD)pReq)->uiFormat,
((PRCLXCLIPBOARD)pReq)->pNewClipboard,
nClipSize);
}
break;
case REQ_DATA:
{
PRCLXDATA pRClxData = (PRCLXDATA)pReq;
ASSERT(pRClxData);
if (pReqProlog->ReqSize != pRClxData->uiSize + (UINT32)sizeof(*pRClxData))
ASSERT(0);
RClx_DataArrived(pClx, pRClxData);
}
break;
default:
TRACE((WARNING_MESSAGE,
TEXT("Unknown request type. Ignoring\n")));
}
exitpt:
;
}
/*++
* Function:
* _EnumWindowsProc
* Description:
* Used to find a specific window
* Win32/Win16/WinCE
* Arguments:
* hWnd - current enumerated window handle
* lParam - pointer to SEARCHWND passed from
* _FindTopWindow
* Return value:
* TRUE on success but window is not found
* FALSE if the window is found
* Called by:
* _FindTopWindow thru EnumWindows
--*/
BOOL CALLBACK LOADDS _EnumWindowsProc( HWND hWnd, LPARAM lParam )
{
TCHAR classname[128];
TCHAR caption[128];
BOOL rv = TRUE;
_CLXWINDOWOWNER hInst;
PSEARCHWND pSearch = (PSEARCHWND)lParam;
if (pSearch->szClassName &&
!GetClassName(hWnd, classname, sizeof(classname)/sizeof(TCHAR)))
{
goto exitpt;
}
if (pSearch->szCaption && !GetWindowText(hWnd, caption, sizeof(caption)/sizeof(TCHAR)))
{
goto exitpt;
}
#ifdef OS_WINCE
{
DWORD procId = 0;
GetWindowThreadProcessId(hWnd, &procId);
hInst = procId;
}
#else // !OS_WINCE
#ifdef _WIN64
hInst = (HINSTANCE)GetWindowLongPtr(hWnd, GWLP_HINSTANCE);
#else // !_WIN64
#ifdef OS_WIN32
hInst = (HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE);
#endif // OS_WIN32
#endif // !OS_WINCE
#ifdef OS_WIN16
hInst = (HINSTANCE)GetWindowWord(hWnd, GWW_HINSTANCE);
#endif
#endif // _WIN64
if (
(!pSearch->szClassName || ! // Check for classname
_CLX_strcmp(classname, pSearch->szClassName))
&&
(!pSearch->szCaption || !
_CLX_strcmp(caption, pSearch->szCaption))
&&
hInst == pSearch->hInstance)
{
((PSEARCHWND)lParam)->hWnd = hWnd;
rv = FALSE;
}
exitpt:
return rv;
}
/*++
* Function:
* _FindTopWindow
* Description:
* Find specific window by classname and/or caption and/or process Id
* Win32/Win16/WinCE
* Arguments:
* classname - class name to search for, NULL ignore
* caption - caption to search for, NULL ignore
* hInst - instance handle, NULL ignore
* Return value:
* window handle found, NULL otherwise
* Called by:
* SCConnect, SCDisconnect, GetDisconnectResult
--*/
HWND _FindTopWindow(LPCTSTR classname, LPCTSTR caption, _CLXWINDOWOWNER hInst)
{
SEARCHWND search;
search.szClassName = classname;
search.szCaption = caption;
search.hWnd = NULL;
search.hInstance = hInst;
EnumWindows(_EnumWindowsProc, (LPARAM)&search);
return search.hWnd;
}
/*++
* Function:
* _FindWindow
* Description:
* Find child window by classname
* Win32/Win16/WinCE
* Arguments:
* hwndParent - the parent window handle
* srchclass - class name to search for, NULL - ignore
* Return value:
* window handle found, NULL otherwise
* Called by:
*
--*/
HWND _FindWindow(HWND hwndParent, LPCTSTR srchclass)
{
HWND hWnd, hwndTop, hwndNext;
BOOL bFound;
TCHAR classname[128];
hWnd = NULL;
hwndTop = GetWindow(hwndParent, GW_CHILD);
if (!hwndTop)
{
TRACE((INFO_MESSAGE, TEXT("GetWindow failed. hwnd=0x%x\n"), hwndParent));
goto exiterr;
}
bFound = FALSE;
hwndNext = hwndTop;
do {
hWnd = hwndNext;
if (srchclass && !GetClassName(hWnd, classname, sizeof(classname)/sizeof(TCHAR)))
{
TRACE((INFO_MESSAGE, TEXT("GetClassName failed. hwnd=0x%x\n")));
goto nextwindow;
}
if (!srchclass || !_CLX_strcmp(classname, srchclass))
bFound = TRUE;
nextwindow:
#ifndef OS_WINCE
hwndNext = GetNextWindow(hWnd, GW_HWNDNEXT);
#else // OS_WINCE
hwndNext = GetWindow(hWnd, GW_HWNDNEXT);
#endif // OS_WINCE
} while (hWnd && hwndNext != hwndTop && !bFound);
if (!bFound) goto exiterr;
return hWnd;
exiterr:
return NULL;
}
/*++
* Function:
* _OnBackground
* Description:
* Simulates a background thread. Called when a message from the
* background timer is received
* Win32/Win16/WinCE
* Arguments:
* pClx - the context
* Called by:
* _ClxWndProc on WM_TIMER message from g_uiBackgroundTimer is received
--*/
VOID _OnBackground(PCLXINFO pClx)
{
// Try to limit this call, eats lot of the CPU
_GarbageCollecting(pClx, TRUE);
}
/*
* GarbageCollecting - closes all message boxes asking this and that
* like "shall i close the connection" or "there's some error"
* This function is forced by g_uiBackgroundTimer message
*/
/*++
* Function:
* _GarbageCollecting
* Description:
* Closes all message boxes asking this and that
* like "shall i close the connection" or "there's some error"
* This function is forced by g_uiBackgroundTimer message
* Win32/Win16/WinCE
* Arguments:
* pClx - the context
* bNotifyForErrorBox - if TRUE calls ClxEvent with
* "disconnected" event
* Return value:
* TRUE if error boxes are found
* Called by:
*
--*/
BOOL _GarbageCollecting(PCLXINFO pClx, BOOL bNotifyForErrorBox)
{
HWND hBox;
BOOL rv = FALSE;
// Clean all extra message boxes, like saying that
// we cannot connect because of this and that
if (!g_hRDPInst)
goto exitpt;
hBox = _FindTopWindow(NULL,
g_strDisconnectDialogBox,
g_hRDPInst);
if (hBox)
{
rv = TRUE;
PostMessage(hBox, WM_CLOSE, 0, 0);
if (bNotifyForErrorBox)
// Notifiy that we are disconnected
ClxEvent(pClx, CLX_EVENT_DISCONNECT, 0);
}
hBox = _FindTopWindow(NULL,
TEXT(FATAL_ERROR_5),
g_hRDPInst);
if (hBox)
{
rv = TRUE;
PostMessage(hBox, WM_CLOSE, 0, 0);
if (bNotifyForErrorBox)
// Notifiy that we are disconnected
ClxEvent(pClx, CLX_EVENT_DISCONNECT, 0);
}
if (pClx->bCloseTrys)
{
_AttemptToCloseTheClient();
}
exitpt:
if (rv)
TRACE((INFO_MESSAGE, "Error boxes found\n"));
return rv;
}
/*++
* Function:
* _SetClipboard
* Description:
* Sets the clipboard content in RCLX mode
* Win32/Win16/WinCE
* Arguments:
* uiFormat - clipboard format
* pClipboard - new clipboard content
* nSize - the clipboard size
* Called by:
* RClx_ProcessRequest on REQ_SETCLIPBOARD
--*/
VOID
_SetClipboard(UINT uiFormat, PVOID pClipboard, UINT32 nSize)
{
HGLOBAL ghNewClipboard = NULL;
BOOL bOpened = FALSE;
BOOL bFreeClipHandle = TRUE;
LPVOID pNewClipboard = NULL;
// WinCE - no clipboard
#ifndef OS_WINCE
if (!nSize)
{
// Just empty the clipboard
if (OpenClipboard(NULL))
{
bOpened = TRUE;
EmptyClipboard();
} else {
TRACE((ERROR_MESSAGE, TEXT("Can't lock the clipbord. GetLastError=%d\n"),
GetLastError()));
}
goto exitpt;
}
if (!pClipboard)
{
TRACE((ERROR_MESSAGE, TEXT("_SetClipboard: pClipboard is NULL\n")));
goto exitpt;
}
ghNewClipboard = GlobalAlloc(GMEM_MOVEABLE|GMEM_DDESHARE, nSize);
if (!ghNewClipboard)
{
TRACE((ERROR_MESSAGE, TEXT("Can't alloc(GlobalAlloc) %d bytes\n"),
nSize));
goto exitpt;
}
pNewClipboard = GlobalLock(ghNewClipboard);
if (!pNewClipboard)
{
TRACE((ERROR_MESSAGE, TEXT("Can't lock the clipbord. GetLastError=%d\n"),
GetLastError()));
goto exitpt;
}
// Copy the data
HUGEMEMCPY(pNewClipboard, pClipboard, nSize);
if (!OpenClipboard(NULL))
{
TRACE((ERROR_MESSAGE, TEXT("Can't open the clipboard. GetLastError=%d\n"),
GetLastError()));
goto exitpt;
}
bOpened = TRUE;
// Empty the clipboard, so we'll have only one entry
EmptyClipboard();
GlobalUnlock(ghNewClipboard);
pNewClipboard = NULL;
if (!Clp_SetClipboardData(uiFormat,
ghNewClipboard,
nSize,
&bFreeClipHandle))
TRACE((ERROR_MESSAGE, TEXT("SetClipboardData failed. GetLastError=%d\n"), GetLastError()));
else
TRACE((INFO_MESSAGE, TEXT("Clipboard is loaded successfuly. %ld bytes\n"),
nSize));
exitpt:
if (pNewClipboard)
GlobalUnlock(ghNewClipboard);
if (bOpened)
CloseClipboard();
// Do not free already set clipboard
if (ghNewClipboard && bFreeClipHandle)
GlobalFree(ghNewClipboard);
#else // !OS_WINCE
TRACE((WARNING_MESSAGE, TEXT("WinCE: clipboard not supported\n")));
#endif // !OS_WINCE
}
#ifdef OS_WINCE
SOCKET g_hSocket = 0;
LONG g_lEvent = 0;
HWND g_hNotifyWindow = NULL;
UINT g_uiMessage = 0;
HANDLE g_hAsyncThread = NULL;
BYTE g_pRecvBuffer[1024];
INT g_nRecvStart, g_nRecvLength;
BOOL g_bGoAsync = FALSE;
CRITICAL_SECTION g_AsyncCS;
/*++
* Function:
* WSAAsyncSelect
* Description:
* Windows CE doesn't have this function. Here we are using extra thread
* for implementation of this mechanism
* WinCE only
* Arguments:
* s - socket handle
* hWnd - notification window
* wMsg - message to send when event occured
* lEvent - event mask, on what event this will work
* Return value:
* On error returns SOCKET_ERROR
* Called by:
* RClx_Connect, RClx_Disconnect
--*/
INT WSAAsyncSelect (SOCKET s, HWND hWnd, UINT uiMsg, LONG lEvent)
{
INT rv = SOCKET_ERROR;
if (!g_hAsyncThread)
{
TRACE((ERROR_MESSAGE,
TEXT("WSAAsyncSelect: no AsyncThread\n")));
goto exitpt;
}
if (s == INVALID_SOCKET)
{
TRACE((ERROR_MESSAGE,
TEXT("WSAAsyncSelect: INVALID_SOCKET passed\n")));
goto exitpt;
}
if ((lEvent & FD_WRITE) || (lEvent & FD_CONNECT))
{
TRACE((ERROR_MESSAGE,
TEXT("WSAAsyncSelec: FD_WRITE & FD_CONNECT not supported\n")));
goto exitpt;
}
EnterCriticalSection(&g_AsyncCS);
g_hSocket = s;
g_lEvent = lEvent;
g_hNotifyWindow = hWnd;
g_uiMessage = uiMsg;
LeaveCriticalSection(&g_AsyncCS);
ResumeThread(g_hAsyncThread);
rv = 0;
exitpt:
return rv;
}
/*++
* Function:
* AsyncRecv
* Description:
* Used to receive w/o blocking. WSAAsync Select must be called
* with FD_READ flag
* WinCE only
* Arguments:
* s - socket handle
* pBuffer - buffer for received bytes
* nBytesToRead - how many bytes to receive
* pnErrorCode - pointer to error code
* Return value:
* On error returns SOCKET_ERROR
* Called by:
* RClx_ReadRequest
--*/
INT AsyncRecv(SOCKET s, PVOID pBuffer, INT nBytesToRead, INT *pnErrorCode)
{
INT rv = SOCKET_ERROR;
if (!g_hAsyncThread)
{
TRACE((ERROR_MESSAGE,
TEXT("WSAAsyncSelect: no AsyncThread\n")));
goto exitpt;
}
ASSERT(s == g_hSocket);
(*pnErrorCode) = 0;
EnterCriticalSection(&g_AsyncCS);
if (!g_nRecvLength)
{
(*pnErrorCode) = WSAEWOULDBLOCK;
}
else
{
INT nToCopy;
nToCopy = (nBytesToRead < g_nRecvLength)?nBytesToRead:g_nRecvLength;
memcpy(pBuffer, g_pRecvBuffer + g_nRecvStart, nToCopy);
rv = nToCopy;
g_nRecvLength -= nToCopy;
g_nRecvStart += nToCopy;
}
// Resume the thread
if (!g_nRecvLength)
ResumeThread(g_hAsyncThread);
LeaveCriticalSection(&g_AsyncCS);
exitpt:
return rv;
}
/*++
* Function:
* _SelectWorker
* Description:
* Simulates WSAAsyncSelect message notification
* Lifetime: between ClxInitialize and ClxTerminate
* WinCE only
* Arguments:
* lParam - unused parameter
* Return value:
* allways 0
* Called by:
* _StartAsyncThread as a thread function
--*/
UINT _SelectWorker(LPVOID lpParam)
{
SOCKET hSocket;
LONG lEvent;
FD_SET fdRead;
HWND hwndNotify;
UINT uiMsg;
INT Status;
while(g_bGoAsync)
{
FD_ZERO(&fdRead);
EnterCriticalSection(&g_AsyncCS);
hSocket = g_hSocket;
lEvent = g_lEvent;
hwndNotify = g_hNotifyWindow;
uiMsg = g_uiMessage;
LeaveCriticalSection(&g_AsyncCS);
if (hSocket == INVALID_SOCKET || !lEvent || !hwndNotify || !uiMsg)
goto wait;
if (lEvent & FD_READ)
FD_SET(hSocket, &fdRead);
Status = select(-1, &fdRead, NULL, NULL, NULL);
if (Status == SOCKET_ERROR && (lEvent & FD_CLOSE))
PostMessage(hwndNotify, uiMsg, hSocket, FD_CLOSE);
if (FD_ISSET(hSocket, &fdRead) && (lEvent & FD_READ))
{
EnterCriticalSection(&g_AsyncCS);
if (!g_nRecvLength)
// Read into the buffer
{
g_nRecvStart = 0;
g_nRecvLength = recv(hSocket, g_pRecvBuffer, sizeof(g_pRecvBuffer), 0);
if (g_nRecvLength == SOCKET_ERROR)
g_nRecvLength = 0;
}
LeaveCriticalSection(&g_AsyncCS);
if (g_nRecvLength)
PostMessage(hwndNotify, uiMsg, hSocket, FD_READ);
else if (lEvent & FD_CLOSE)
PostMessage(hwndNotify, uiMsg, hSocket, FD_CLOSE);
}
wait:
ASSERT(g_hAsyncThread);
SuspendThread(g_hAsyncThread);
}
return 0;
}
/*++
* Function:
* _StartAsyncThread
* Description:
* Starts thread for simulating WSAAsyncSelect
* WinCE only
* Return value:
* TRUE on success
* Called by:
* dllentry on DLL_ATTACH_PROCESS
--*/
BOOL _StartAsyncThread(VOID)
{
DWORD dwThreadId;
InitializeCriticalSection(&g_AsyncCS);
g_bGoAsync = TRUE;
g_hAsyncThread =
CreateThread(
NULL, // security
0, // stack size (default)
_SelectWorker,
NULL, // parameter
0, // flags
&dwThreadId);
return (g_hAsyncThread != NULL);
}
/*++
* Function:
* _CloseAsyncThread
* Description:
* Destroys the thread created in _StartAsyncThread
* WinCE only
* Called by:
* dllentry on DLL_DETTACH_PROCESS
--*/
VOID _CloseAsyncThread(VOID)
{
if (g_hAsyncThread)
{
g_bGoAsync = FALSE;
ResumeThread(g_hAsyncThread);
TRACE((INFO_MESSAGE, TEXT("Closing Async Thread\n")));
if (WaitForSingleObject(g_hAsyncThread, 15000) == WAIT_TIMEOUT)
{
TRACE((WARNING_MESSAGE,
TEXT("Async Thread is still alive. Retrying once more time\n")));
ResumeThread(g_hAsyncThread);
if (WaitForSingleObject(g_hAsyncThread, 30000) == WAIT_TIMEOUT)
{
TRACE((ERROR_MESSAGE,
TEXT("Async thread is again alive. KILL THE THREAD !!!\n")));
TerminateThread(g_hAsyncThread, 1);
}
}
g_hAsyncThread = NULL;
}
DeleteCriticalSection(&g_AsyncCS);
}
BOOL
CheckDlgButton(
HWND hDlg,
INT nIDButton,
UINT uCheck)
{
LONG lres = SendDlgItemMessage(hDlg, nIDButton, BM_SETCHECK, uCheck, 0);
return (lres == 0);
}
#endif // OS_WINCE
#ifdef UNICODE
/*++
* Function:
* _CLX_SetDlgItemTextA
* Description:
* Ascii version for SetDlgItemText
* WinCE only, UNICODE only
* Arguments:
* hDlg - dialog handle
* nDlgItem - dialog item
* lpString - item text
* Return value:
* TRUE on success
* Called by:
* _ClxWndProc on WM_TIMER message
--*/
BOOL _CLX_SetDlgItemTextA(HWND hDlg, INT nDlgItem, LPCSTR lpString)
{
WCHAR lpStringW[128];
INT ccLen = strlen(lpString);
lpStringW[0] = 0;
MultiByteToWideChar(
CP_ACP,
MB_ERR_INVALID_CHARS,
lpString,
-1,
lpStringW,
ccLen + 1);
return SetDlgItemText(hDlg, nDlgItem, lpStringW);
}
#endif // UNICODE
#ifndef OS_WINCE
/*
*
* Clipboard functions
*
*/
HGLOBAL Clp_GetMFData(HANDLE hData,
UINT32 *pDataLen);
HGLOBAL Clp_SetMFData(UINT32 dataLen,
PVOID pData);
// next is directly cut & paste from clputil.c
typedef struct {
UINT32 mm;
UINT32 xExt;
UINT32 yExt;
} CLIPBOARD_MFPICT, *PCLIPBOARD_MFPICT;
VOID
Clp_GetClipboardData(
UINT format,
HGLOBAL hClipData,
UINT32 *pnClipDataSize,
HGLOBAL *phNewData)
{
HGLOBAL hData = hClipData;
UINT32 dataLen = 0;
WORD numEntries;
DWORD dwEntries;
PVOID pData;
*phNewData = NULL;
*pnClipDataSize = 0;
if (format == CF_PALETTE)
{
/****************************************************************/
/* Find out how many entries there are in the palette and */
/* allocate enough memory to hold them all. */
/****************************************************************/
if (GetObject(hData, sizeof(numEntries), (LPSTR)&numEntries) == 0)
{
numEntries = 256;
}
dataLen = sizeof(LOGPALETTE) +
(((UINT32)numEntries - 1) * sizeof(PALETTEENTRY));
*phNewData = GlobalAlloc(GHND, dataLen);
if (*phNewData == 0)
{
TRACE((ERROR_MESSAGE, "Failed to get %d bytes for palette", dataLen));
goto exitpt;
}
else
{
/************************************************************/
/* now get the palette entries into the new buffer */
/************************************************************/
pData = GlobalLock(*phNewData);
dwEntries = GetPaletteEntries((HPALETTE)hData,
0,
numEntries,
(PALETTEENTRY*)pData);
GlobalUnlock(*phNewData);
if (dwEntries == 0)
{
TRACE((ERROR_MESSAGE, "Failed to get any palette entries"));
goto exitpt;
}
dataLen = (UINT32)dwEntries * sizeof(PALETTEENTRY);
}
} else if (format == CF_METAFILEPICT)
{
*phNewData = Clp_GetMFData(hData, &dataLen);
if (!*phNewData)
{
TRACE((ERROR_MESSAGE, "Failed to set MF data"));
goto exitpt;
}
} else {
if (format == CF_DIB)
{
// Get the exact DIB size
BITMAPINFOHEADER *pBMI = (BITMAPINFOHEADER *)GlobalLock(hData);
if (pBMI)
{
if (pBMI->biSizeImage)
dataLen = pBMI->biSize + pBMI->biSizeImage;
GlobalUnlock(hData);
}
}
/****************************************************************/
/* just get the length of the block */
/****************************************************************/
if (!dataLen)
dataLen = (DWORD)GlobalSize(hData);
}
*pnClipDataSize = dataLen;
exitpt:
;
}
BOOL
Clp_SetClipboardData(
UINT formatID,
HGLOBAL hClipData,
UINT32 nClipDataSize,
BOOL *pbFreeHandle)
{
BOOL rv = FALSE;
PVOID pData = NULL;
HGLOBAL hData = NULL;
LOGPALETTE *pLogPalette = NULL;
UINT numEntries;
UINT memLen;
ASSERT(pbFreeHandle);
*pbFreeHandle = TRUE;
if (formatID == CF_METAFILEPICT)
{
/********************************************************************/
/* We have to put a handle to the metafile on the clipboard - which */
/* means creating a metafile from the received data first */
/********************************************************************/
pData = GlobalLock(hClipData);
if (!pData)
{
TRACE((ERROR_MESSAGE, "Failed to lock buffer\n"));
goto exitpt;
}
hData = Clp_SetMFData(nClipDataSize, pData);
if (!hData)
{
TRACE((ERROR_MESSAGE, "Failed to set MF data\n"));
}
else if (SetClipboardData(formatID, hData) != hData)
{
TRACE((ERROR_MESSAGE, "SetClipboardData. GetLastError=%d\n", GetLastError()));
}
GlobalUnlock(hClipData);
} else if (formatID == CF_PALETTE)
{
/********************************************************************/
/* We have to put a handle to the palette on the clipboard - again */
/* this means creating one from the received data first */
/* */
/* Allocate memory for a LOGPALETTE structure large enough to hold */
/* all the PALETTE ENTRY structures, and fill it in. */
/********************************************************************/
numEntries = (UINT)(nClipDataSize / sizeof(PALETTEENTRY));
memLen = (sizeof(LOGPALETTE) +
((numEntries - 1) * sizeof(PALETTEENTRY)));
pLogPalette = malloc(memLen);
if (!pLogPalette)
{
TRACE((ERROR_MESSAGE, "Failed to get %d bytes", memLen));
goto exitpt;
}
pLogPalette->palVersion = 0x300;
pLogPalette->palNumEntries = (WORD)numEntries;
/********************************************************************/
/* get a pointer to the data and copy it to the palette */
/********************************************************************/
pData = GlobalLock(hClipData);
if (pData == NULL)
{
TRACE((ERROR_MESSAGE, "Failed to lock buffer"));
goto exitpt;
}
HUGEMEMCPY(pLogPalette->palPalEntry, pData, nClipDataSize);
/********************************************************************/
/* unlock the buffer */
/********************************************************************/
GlobalUnlock(hClipData);
/********************************************************************/
/* now create a palette */
/********************************************************************/
hData = CreatePalette(pLogPalette);
if (!hData)
{
TRACE((ERROR_MESSAGE, "CreatePalette failed\n"));
goto exitpt;
}
/********************************************************************/
/* and set the palette handle to the Clipboard */
/********************************************************************/
if (SetClipboardData(formatID, hData) != hData)
{
TRACE((ERROR_MESSAGE, "SetClipboardData. GetLastError=%d\n", GetLastError()));
}
} else {
/****************************************************************/
/* Just set it onto the clipboard */
/****************************************************************/
if (SetClipboardData(formatID, hClipData) != hClipData)
{
TRACE((ERROR_MESSAGE, "SetClipboardData. GetLastError=%d, hClipData=0x%x\n", GetLastError(), hClipData));
goto exitpt;
}
// Only in this case we don't need to free the handle
*pbFreeHandle = FALSE;
}
rv = TRUE;
exitpt:
if (!pLogPalette)
{
free(pLogPalette);
}
return rv;
}
HGLOBAL Clp_GetMFData(HANDLE hData,
UINT32 *pDataLen)
{
UINT32 lenMFBits = 0;
BOOL rc = FALSE;
LPMETAFILEPICT pMFP = NULL;
HDC hMFDC = NULL;
HMETAFILE hMF = NULL;
HGLOBAL hMFBits = NULL;
HANDLE hNewData = NULL;
CHAR *pNewData = NULL;
PVOID pBits = NULL;
/************************************************************************/
/* Lock the memory to get a pointer to a METAFILEPICT header structure */
/* and create a METAFILEPICT DC. */
/************************************************************************/
pMFP = (LPMETAFILEPICT)GlobalLock(hData);
if (pMFP == NULL)
goto exitpt;
hMFDC = CreateMetaFile(NULL);
if (hMFDC == NULL)
goto exitpt;
/************************************************************************/
/* Copy the MFP by playing it into the DC and closing it. */
/************************************************************************/
if (!PlayMetaFile(hMFDC, pMFP->hMF))
{
CloseMetaFile(hMFDC);
goto exitpt;
}
hMF = CloseMetaFile(hMFDC);
if (hMF == NULL)
goto exitpt;
/************************************************************************/
/* Get the MF bits and determine how long they are. */
/************************************************************************/
#ifdef OS_WIN16
hMFBits = GetMetaFileBits(hMF);
lenMFBits = GlobalSize(hMFBits);
#else
lenMFBits = GetMetaFileBitsEx(hMF, 0, NULL);
#endif
if (lenMFBits == 0)
goto exitpt;
/************************************************************************/
/* Work out how much memory we need and get a buffer */
/************************************************************************/
*pDataLen = sizeof(CLIPBOARD_MFPICT) + lenMFBits;
hNewData = GlobalAlloc(GHND, *pDataLen);
if (hNewData == NULL)
goto exitpt;
pNewData = GlobalLock(hNewData);
/************************************************************************/
/* Copy the MF header and bits into the buffer. */
/************************************************************************/
((PCLIPBOARD_MFPICT)pNewData)->mm = pMFP->mm;
((PCLIPBOARD_MFPICT)pNewData)->xExt = pMFP->xExt;
((PCLIPBOARD_MFPICT)pNewData)->yExt = pMFP->yExt;
#ifdef OS_WIN16
pBits = GlobalLock(hMFBits);
HUGEMEMCPY((pNewData + sizeof(CLIPBOARD_MFPICT)),
pBits,
lenMFBits);
GlobalUnlock(hMFBits);
#else
lenMFBits = GetMetaFileBitsEx(hMF, lenMFBits,
(pNewData + sizeof(CLIPBOARD_MFPICT)));
if (lenMFBits == 0)
goto exitpt;
#endif
/************************************************************************/
/* all OK */
/************************************************************************/
rc = TRUE;
exitpt:
/************************************************************************/
/* Unlock any global mem. */
/************************************************************************/
if (pMFP)
{
GlobalUnlock(hData);
}
if (pNewData)
{
GlobalUnlock(hNewData);
}
/************************************************************************/
/* if things went wrong, then free the new data */
/************************************************************************/
if ((rc == FALSE) && (hNewData != NULL))
{
GlobalFree(hNewData);
hNewData = NULL;
}
return(hNewData);
}
HGLOBAL Clp_SetMFData(UINT32 dataLen,
PVOID pData)
{
BOOL rc = FALSE;
HGLOBAL hMFBits = NULL;
PVOID pMFMem = NULL;
HMETAFILE hMF = NULL;
HGLOBAL hMFPict = NULL;
LPMETAFILEPICT pMFPict = NULL;
/************************************************************************/
/* Allocate memory to hold the MF bits (we need the handle to pass to */
/* SetMetaFileBits). */
/************************************************************************/
hMFBits = GlobalAlloc(GHND, dataLen - sizeof(CLIPBOARD_MFPICT));
if (hMFBits == NULL)
goto exitpt;
/************************************************************************/
/* Lock the handle and copy in the MF header. */
/************************************************************************/
pMFMem = GlobalLock(hMFBits);
if (pMFMem == NULL)
goto exitpt;
HUGEMEMCPY(pMFMem,
(PVOID)((CHAR *)pData + sizeof(CLIPBOARD_MFPICT)),
dataLen - sizeof(CLIPBOARD_MFPICT) );
GlobalUnlock(hMFBits);
/************************************************************************/
/* Now use the copied MF bits to create the actual MF bits and get a */
/* handle to the MF. */
/************************************************************************/
#ifdef OS_WIN16
hMF = SetMetaFileBits(hMFBits);
#else
hMF = SetMetaFileBitsEx(dataLen - sizeof(CLIPBOARD_MFPICT), pMFMem);
#endif
if (hMF == NULL)
goto exitpt;
/************************************************************************/
/* Allocate a new METAFILEPICT structure, and use the data from the */
/* header. */
/************************************************************************/
hMFPict = GlobalAlloc(GHND, sizeof(METAFILEPICT));
pMFPict = (LPMETAFILEPICT)GlobalLock(hMFPict);
if (!pMFPict)
goto exitpt;
pMFPict->mm = (int)((PCLIPBOARD_MFPICT)pData)->mm;
pMFPict->xExt = (int)((PCLIPBOARD_MFPICT)pData)->xExt;
pMFPict->yExt = (int)((PCLIPBOARD_MFPICT)pData)->yExt;
pMFPict->hMF = hMF;
GlobalUnlock(hMFPict);
rc = TRUE;
exitpt:
/************************************************************************/
/* tidy up */
/************************************************************************/
if (!rc)
{
if (hMFPict)
{
GlobalFree(hMFPict);
}
if (hMFBits)
{
GlobalFree(hMFBits);
}
}
return(hMFPict);
}
#endif // !OS_WINCE
BOOL
WS_Init(VOID)
{
WORD versionRequested;
WSADATA wsaData;
INT intRC;
BOOL rv = FALSE;
versionRequested = MAKEWORD(1, 1);
intRC = WSAStartup(versionRequested, &wsaData);
if (intRC != 0)
goto exitpt;
rv = TRUE;
exitpt:
return rv;
}
VOID
_AttemptToCloseTheClient(VOID)
{
HWND hYesNo = NULL;
static BOOL bSpeedupTimer = FALSE;
if (!bSpeedupTimer)
{
KillTimer(g_hWindow, g_uiBackgroundTimer);
g_uiBackgroundTimer = SetTimer(g_hWindow,
RCLX_BACKGNDTIMERID,
RCLX_TIMERELAPSETIME/15+1000,
NULL);
bSpeedupTimer = TRUE;
}
hYesNo = _FindTopWindow(NULL,
g_strYesNoShutdown,
g_hRDPInst);
if (hYesNo)
{
PostMessage(hYesNo, WM_KEYDOWN, VK_RETURN, 0);
} else {
PostMessage(g_pClx->hwndMain, WM_CLOSE, 0, 0);
// Don't know how, but this helps for NT4 client
PostMessage(g_pClx->hwndMain, WM_LBUTTONDOWN, 0, 0);
}
}
/*
* This came from: \\index1\src\nt\private\samples\wincap32\dibutil.c
*/
#define WIDTHBYTES(bits) (((bits) + 31) / 32 * 4)
#define IS_WIN30_DIB(lpbi) ((*(LPDWORD)(lpbi)) == sizeof(BITMAPINFOHEADER))
WORD DIBNumColors(LPSTR lpDIB)
{
WORD wBitCount; // DIB bit count
// If this is a Windows-style DIB, the number of colors in the
// color table can be less than the number of bits per pixel
// allows for (i.e. lpbi->biClrUsed can be set to some value).
// If this is the case, return the appropriate value.
if (IS_WIN30_DIB(lpDIB))
{
DWORD dwClrUsed;
dwClrUsed = ((LPBITMAPINFOHEADER)lpDIB)->biClrUsed;
if (dwClrUsed)
return (WORD)dwClrUsed;
}
// Calculate the number of colors in the color table based on
// the number of bits per pixel for the DIB.
if (IS_WIN30_DIB(lpDIB))
wBitCount = ((LPBITMAPINFOHEADER)lpDIB)->biBitCount;
else
wBitCount = ((LPBITMAPCOREHEADER)lpDIB)->bcBitCount;
// return number of colors based on bits per pixel
switch (wBitCount)
{
case 1:
return 2;
case 4:
return 16;
case 8:
return 256;
default:
return 0;
}
}
WORD PaletteSize(LPSTR lpDIB)
{
// calculate the size required by the palette
if (IS_WIN30_DIB (lpDIB))
return (DIBNumColors(lpDIB) * sizeof(RGBQUAD));
else
return (DIBNumColors(lpDIB) * sizeof(RGBTRIPLE));
}
/*************************************************************************
*
* BitmapToDIB()
*
* Parameters:
*
* HBITMAP hBitmap - specifies the bitmap to convert
*
* HPALETTE hPal - specifies the palette to use with the bitmap
*
* Return Value:
*
* HANDLE - identifies the device-dependent bitmap
*
* Description:
*
* This function creates a DIB from a bitmap using the specified palette.
*
************************************************************************/
HANDLE BitmapToDIB(HBITMAP hBitmap, HPALETTE hPal)
{
BITMAP bm; // bitmap structure
BITMAPINFOHEADER bi; // bitmap header
LPBITMAPINFOHEADER lpbi; // pointer to BITMAPINFOHEADER
DWORD dwLen; // size of memory block
HANDLE hDIB, h; // handle to DIB, temp handle
HDC hDC; // handle to DC
WORD biBits; // bits per pixel
// check if bitmap handle is valid
if (!hBitmap)
return NULL;
// fill in BITMAP structure, return NULL if it didn't work
if (!GetObject(hBitmap, sizeof(bm), (LPSTR)&bm))
return NULL;
// if no palette is specified, use default palette
if (hPal == NULL)
hPal = GetStockObject(DEFAULT_PALETTE);
// calculate bits per pixel
biBits = bm.bmPlanes * bm.bmBitsPixel;
// make sure bits per pixel is valid
if (biBits <= 1)
biBits = 1;
else if (biBits <= 4)
biBits = 4;
else if (biBits <= 8)
biBits = 8;
else // if greater than 8-bit, force to 24-bit
biBits = 24;
// initialize BITMAPINFOHEADER
bi.biSize = sizeof(BITMAPINFOHEADER);
bi.biWidth = bm.bmWidth;
bi.biHeight = bm.bmHeight;
bi.biPlanes = 1;
bi.biBitCount = biBits;
bi.biCompression = BI_RGB;
bi.biSizeImage = 0;
bi.biXPelsPerMeter = 0;
bi.biYPelsPerMeter = 0;
bi.biClrUsed = 0;
bi.biClrImportant = 0;
// calculate size of memory block required to store BITMAPINFO
dwLen = bi.biSize + PaletteSize((LPSTR)&bi);
// get a DC
hDC = GetDC(NULL);
if ( !hDC )
return NULL;
// select and realize our palette
hPal = SelectPalette(hDC, hPal, FALSE);
RealizePalette(hDC);
// alloc memory block to store our bitmap
hDIB = GlobalAlloc(GHND, dwLen);
// if we couldn't get memory block
if (!hDIB)
{
// clean up and return NULL
SelectPalette(hDC, hPal, TRUE);
RealizePalette(hDC);
ReleaseDC(NULL, hDC);
return NULL;
}
// lock memory and get pointer to it
lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDIB);
/// use our bitmap info. to fill BITMAPINFOHEADER
*lpbi = bi;
// call GetDIBits with a NULL lpBits param, so it will calculate the
// biSizeImage field for us
GetDIBits(hDC, hBitmap, 0, (UINT)bi.biHeight, NULL, (LPBITMAPINFO)lpbi,
DIB_RGB_COLORS);
// get the info. returned by GetDIBits and unlock memory block
bi = *lpbi;
GlobalUnlock(hDIB);
// if the driver did not fill in the biSizeImage field, make one up
if (bi.biSizeImage == 0)
bi.biSizeImage = WIDTHBYTES((DWORD)bm.bmWidth * biBits) * bm.bmHeight;
// realloc the buffer big enough to hold all the bits
dwLen = bi.biSize + PaletteSize((LPSTR)&bi) + bi.biSizeImage;
if (h = GlobalReAlloc(hDIB, dwLen, 0))
hDIB = h;
else
{
// clean up and return NULL
GlobalFree(hDIB);
hDIB = NULL;
SelectPalette(hDC, hPal, TRUE);
RealizePalette(hDC);
ReleaseDC(NULL, hDC);
return NULL;
}
// lock memory block and get pointer to it */
lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDIB);
// call GetDIBits with a NON-NULL lpBits param, and actualy get the
// bits this time
if (GetDIBits(hDC, hBitmap, 0, (UINT)bi.biHeight, (LPSTR)lpbi +
(WORD)lpbi->biSize + PaletteSize((LPSTR)lpbi), (LPBITMAPINFO)lpbi,
DIB_RGB_COLORS) == 0)
{
// clean up and return NULL
GlobalUnlock(hDIB);
hDIB = NULL;
SelectPalette(hDC, hPal, TRUE);
RealizePalette(hDC);
ReleaseDC(NULL, hDC);
return NULL;
}
bi = *lpbi;
// clean up
GlobalUnlock(hDIB);
SelectPalette(hDC, hPal, TRUE);
RealizePalette(hDC);
ReleaseDC(NULL, hDC);
// return handle to the DIB
return hDIB;
}
/*++
* Function:
* _GetDIBFromBitmap
* Description:
* Copies a rectangle from hBitmap and converts it to DIB data
*
* Arguments:
* hBitmap - the main bitmap
* ppDIB - pointer to DIB data
* left, top, right, bottom - describes the rectangle
* - if all are == -1, returns the whole bitmap
* Return value:
* TRUE on success
* Called by:
* _ClxWndProc on WM_TIMER message
--*/
VOID
_GetDIBFromBitmap(
HDC hdcMemSrc,
HBITMAP hBitmap,
HANDLE *phDIB,
INT left,
INT top,
INT right,
INT bottom)
{
HANDLE hDIB = NULL;
HDC hdcMemDst = NULL;
HDC hdcScreen = NULL;
HBITMAP hDstBitmap = NULL;
HBITMAP hOldDstBmp = NULL;
if (!hdcMemSrc)
goto exitpt;
if (left == -1 && right == -1 && top == -1 && bottom == -1 && hBitmap)
{
BITMAP bitmapInfo;
if (sizeof(bitmapInfo) !=
GetObject(hBitmap, sizeof(bitmapInfo), &bitmapInfo))
goto exitpt;
left = top = 0;
right = bitmapInfo.bmWidth;
bottom = bitmapInfo.bmHeight;
}
// reorder left...bottom if needed
if (left > right)
{
INT change = left;
left = right;
right = change;
}
if (top > bottom)
{
INT change = top;
top = bottom;
bottom = change;
}
hdcScreen = GetDC(NULL);
hdcMemDst = CreateCompatibleDC(hdcScreen);
hDstBitmap = CreateCompatibleBitmap(hdcScreen, right - left, bottom - top);
if (!hdcMemDst || !hDstBitmap)
{
TRACE(( ERROR_MESSAGE, TEXT("Can't create destination DC to get client's DIB\n")));
goto exitpt;
}
hOldDstBmp = SelectObject(hdcMemDst, hDstBitmap);
if (!BitBlt( hdcMemDst,
0, 0, // dest x,y
right - left, // dest width
bottom - top, // dest height
hdcMemSrc,
left, top, // source coordinates
SRCCOPY))
goto exitpt;
TRACE((INFO_MESSAGE, TEXT("Getting DIB (%d, %d, %d, %d)\n"),
left, top, right, bottom));
hDIB = BitmapToDIB(hDstBitmap, NULL);
exitpt:
if (hdcMemDst)
{
if (hOldDstBmp)
SelectObject(hdcMemDst, hOldDstBmp);
DeleteDC(hdcMemDst);
}
if (hdcScreen)
ReleaseDC(NULL, hdcScreen);
if (hDstBitmap)
DeleteObject(hDstBitmap);
*phDIB = hDIB;
if (!hDIB)
TRACE((ERROR_MESSAGE, TEXT("Can't get client's DIB. GetLastError=%d\n"), GetLastError()));
}
#ifndef OS_WINCE
#ifdef OS_WIN32
DWORD
__stdcall
_ClxSendMsgThread(VOID *param)
{
while(1)
{
if (!g_pClx || WaitForSingleObject(g_pClx->semSendReady, INFINITE) !=
WAIT_OBJECT_0)
goto exitpt;
if (!g_pClx || g_pClx->bSendMsgThreadExit)
goto exitpt;
SendMessage(g_pClx->msg.hwnd,
g_pClx->msg.message,
g_pClx->msg.wParam,
g_pClx->msg.lParam);
// release the owner of the message
ReleaseSemaphore(g_pClx->semSendCompleted, 1, NULL);
// release next waiting worker
ReleaseSemaphore(g_pClx->semSendDone, 1, NULL);
}
exitpt:
return 0;
}
/*++
* Function:
* _ClxSendMessage
* Description:
* Calls SendMessage from separate thread
* prevents deadlock on SendMessage (#319816)
*
* Arguments:
* hBitmap - the main bitmap
* ppDIB - pointer to DIB data
* left, top, right, bottom - describes the rectangle
* - if all are == -1, returns the whole bitmap
* Return value:
* TRUE on success
* Called by:
* _ClxWndProc on WM_TIMER message
--*/
LRESULT
_ClxSendMessage(
HWND hWnd, // handle of destination window
UINT Msg, // message to send
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
)
{
LRESULT rv = 0;
PCLXINFO pClx = g_pClx;
DWORD dwThreadId;
if (!pClx)
goto exitpt;
if (!pClx->semSendDone)
pClx->semSendDone = CreateSemaphore(NULL, 1, 10, NULL);
if (!pClx->semSendReady)
pClx->semSendReady = CreateSemaphore(NULL, 0, 10, NULL);
if (!pClx->semSendCompleted)
pClx->semSendCompleted = CreateSemaphore(NULL, 0, 10, NULL);
if (!pClx->semSendDone || !pClx->semSendReady || !pClx->semSendCompleted)
goto exitpt;
if (!pClx->hSendMsgThread)
{
pClx->hSendMsgThread = CreateThread(
NULL,
0,
_ClxSendMsgThread,
NULL,
0,
&dwThreadId);
}
if (!pClx->hSendMsgThread)
goto exitpt;
// Wait 10 mins send to complete
if (WaitForSingleObject(pClx->semSendDone, 600000) !=
WAIT_OBJECT_0)
goto exitpt;
pClx->msg.hwnd = hWnd;
pClx->msg.message = Msg;
pClx->msg.wParam = wParam;
pClx->msg.lParam = lParam;
// Signal the thread for available message
ReleaseSemaphore(pClx->semSendReady, 1, NULL);
// Wait for the send to complete
WaitForSingleObject(pClx->semSendCompleted, 600000);
exitpt:
return rv;
}
VOID
_ClxDestroySendMsgThread(PCLXINFO pClx)
{
if (!pClx)
goto exitpt;
if (!pClx->semSendDone || !pClx->semSendReady || !pClx->hSendMsgThread ||
!pClx->semSendCompleted)
goto exitpt;
// Wait 10 mins send to complete
WaitForSingleObject(pClx->semSendDone, 600000);
pClx->bSendMsgThreadExit = TRUE;
// signal the thread to exit
ReleaseSemaphore(pClx->semSendReady, 1, NULL);
// wait for the thread to exit
if (WaitForSingleObject(pClx->hSendMsgThread, 1200000) != WAIT_OBJECT_0)
{
TRACE((ERROR_MESSAGE, TEXT("SendThread can't exit, calling TerminateThread\n")));
TerminateThread(pClx->hSendMsgThread, 0);
}
CloseHandle(pClx->hSendMsgThread);
exitpt:
if (pClx->semSendCompleted)
{
CloseHandle(pClx->semSendCompleted);
pClx->semSendCompleted = NULL;
}
if (pClx->semSendDone)
{
CloseHandle(pClx->semSendDone);
pClx->semSendDone = NULL;
}
if (pClx->semSendReady)
{
CloseHandle(pClx->semSendReady);
pClx->semSendReady = NULL;
}
pClx->hSendMsgThread = 0;
;
}
#endif // OS_WIN32
#endif // !OS_WINCE
//////////////////////////////////////////////////////////////////////
//
// VC Channel support for RCLX mode
//
DWORD
CLXAPI
CLXDataReceivedVC(
LPCSTR szChannelName,
LPVOID pData,
DWORD dwSize
)
{
DWORD rv = (DWORD)-1;
PCLXINFO pClx;
CHAR szName[MAX_VCNAME_LEN];
PCLXVCHANNEL pVChannel;
RCLXDATA Response;
RCLXFEEDPROLOG Prolog;
BOOL rc;
// Check if this channel is already registered
pVChannel = g_pVChannels;
// find the channel entry
while(pVChannel && _stricmp(pVChannel->szName, szChannelName))
{
pVChannel = pVChannel->pNext;
}
if (!pVChannel)
{
TRACE((WARNING_MESSAGE, TEXT("Channel %s is not registered\n"), szChannelName));
goto exitpt;
}
if (!IS_RCLX)
{
TRACE((WARNING_MESSAGE, TEXT("CLXDataReceivedVC: not in RCLX mode\n")));
goto exitpt;
}
if (!g_pClx)
{
TRACE((ERROR_MESSAGE, TEXT("CLXDataReceivedVC: pClx is NULL\n")));
goto exitpt;
}
if (strlen(szChannelName) > MAX_VCNAME_LEN - 1)
{
TRACE((ERROR_MESSAGE, TEXT("Channel name \"%s\"bigger than %d chars\n"),
szChannelName, MAX_VCNAME_LEN));
goto exitpt;
}
pClx = g_pClx;
Prolog.FeedType = FEED_DATA;
Prolog.HeadSize = sizeof(Response) + sizeof(szName) + dwSize;
Prolog.TailSize = 0;
Response.uiType = DATA_VC;
Response.uiSize = sizeof(szName) + dwSize;
strcpy(szName, szChannelName);
TRACE((ALIVE_MESSAGE,
TEXT("Sending VC data, DataSize=%d, HeadSize=%d, TailSize=%d, Name=%s\n"),
dwSize,
Prolog.HeadSize,
Prolog.TailSize,
szName));
rc = RClx_SendBuffer(pClx->hSocket, &Prolog, sizeof(Prolog));
rc = rc && RClx_SendBuffer(pClx->hSocket, &Response, sizeof(Response));
rc = rc && RClx_SendBuffer(pClx->hSocket, szName, sizeof(szName));
rc = rc && RClx_SendBuffer(pClx->hSocket, pData, dwSize);
if (!rc)
{
TRACE((WARNING_MESSAGE, TEXT("Unable to sent message\n")));
goto exitpt;
}
rv = 0;
exitpt:
return rv;
}
DWORD
_CLXSendDataVC(
LPCSTR szChannelName,
LPVOID pData,
DWORD dwSize
)
{
DWORD rv = (DWORD)-1;
// Check if this channel is already registered
PCLXVCHANNEL pVChannel = g_pVChannels;
// find the channel entry
while(pVChannel && _stricmp(pVChannel->szName, szChannelName))
{
pVChannel = pVChannel->pNext;
}
if (!pVChannel)
{
TRACE((WARNING_MESSAGE, TEXT("Channel %s is not registered\n"), szChannelName));
goto exitpt;
}
ASSERT(pVChannel->pSendDataFn);
rv = (pVChannel->pSendDataFn)(pData, dwSize);
exitpt:
return rv;
}
BOOL
CLXAPI
ClxRegisterVC(
LPCSTR szChannelName,
PCLXVC_SENDDATA pSendData,
PCLXVC_RECVDATA *ppRecvData
)
{
BOOL rv = FALSE;
PCLXVCHANNEL pVChannel;
UINT counter;
if (!szChannelName || !pSendData || !ppRecvData ||
strlen(szChannelName) > MAX_VCNAME_LEN - 1)
{
TRACE((ERROR_MESSAGE, TEXT("ClxRegisterVC: invalid parameters\n")));
goto exitpt;
}
pVChannel = malloc(sizeof(*pVChannel));
if (!pVChannel)
goto exitpt;
strcpy(pVChannel->szName, szChannelName);
// zero the rest of the name
for(counter = strlen(szChannelName); counter < MAX_VCNAME_LEN; counter++)
pVChannel->szName[counter] = 0;
pVChannel->pSendDataFn = pSendData;
*ppRecvData = CLXDataReceivedVC;
// Push this in the queue
pVChannel->pNext = g_pVChannels;
g_pVChannels = pVChannel;
rv = TRUE;
exitpt:
return rv;
}
VOID
CLXAPI
ClxUnregisterVC(
LPCSTR szChannelName
)
{
PCLXVCHANNEL pVChannel = g_pVChannels;
PCLXVCHANNEL pPrev = NULL;
// find the channel and remove it from the queue
while(pVChannel && _stricmp(pVChannel->szName, szChannelName))
{
pPrev = pVChannel;
pVChannel = pVChannel->pNext;
}
if (!pVChannel)
{
TRACE((WARNING_MESSAGE, TEXT("Can't find channel name: %s\n"),
szChannelName));
goto exitpt;
}
if (!pPrev)
g_pVChannels = pVChannel->pNext;
else
pPrev->pNext = pVChannel->pNext;
exitpt:
;
}
//////////////////////////////////////////////////////////////////////
Reference in a new issue Copy permalink