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Check all Callouts function pointers for NULL before using them. 

Don't load USER dll if not needed by the application.
This commit is contained in:
Alexandre Julliard 2000-11-08 22:47:53 +00:00
parent d3576a9f85
commit 4e951ea25b
13 changed files with 98 additions and 99 deletions
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13
dlls/gdi/printdrv.c
View File

@ -617,15 +617,26 @@ INT16 WINAPI WriteSpool16(HPJOB16 hJob, LPSTR lpData, INT16 cch)
return nRet;
}
typedef INT WINAPI (*MSGBOX_PROC)( HWND, LPCSTR, LPCSTR, UINT );
/**********************************************************************
* WriteDialog (GDI.242)
*
*/
INT16 WINAPI WriteDialog16(HPJOB16 hJob, LPSTR lpMsg, INT16 cchMsg)
{
HMODULE mod;
MSGBOX_PROC pMessageBoxA;
INT16 ret = 0;
TRACE("%04x %04x '%s'\n", hJob, cchMsg, lpMsg);
return Callout.MessageBoxA(0, lpMsg, "Printing Error", MB_OKCANCEL);
if ((mod = GetModuleHandleA("user32.dll")))
{
if ((pMessageBoxA = (MSGBOX_PROC)GetProcAddress( mod, "MessageBoxA" )))
ret = pMessageBoxA(0, lpMsg, "Printing Error", MB_OKCANCEL);
}
return ret;
}

2
dlls/kernel/comm.c
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@ -340,7 +340,7 @@ static void CALLBACK comm_notification( ULONG_PTR private )
/* send notifications, if any */
if (ptr->wnd && mask) {
TRACE("notifying %04x: cid=%d, mask=%02x\n", ptr->wnd, cid, mask);
Callout.PostMessageA(ptr->wnd, WM_COMMNOTIFY, cid, mask);
if (Callout.PostMessageA) Callout.PostMessageA(ptr->wnd, WM_COMMNOTIFY, cid, mask);
}
}

9
if1632/thunk.c
View File

@ -43,7 +43,6 @@ CALLOUT_TABLE Callout = {
/* GetMessageA */ NULL,
/* SendMessageA */ NULL,
/* PostMessageA */ NULL,
/* PostAppMessage16 */ NULL,
/* TranslateMessage */ NULL,
/* DispatchMessageA */ NULL,
/* RedrawWindow */ NULL,
@ -168,7 +167,7 @@ void THUNK_InitCallout(void)
HMODULE hModule;
NE_MODULE *pModule;
hModule = LoadLibraryA( "user32.dll" );
hModule = GetModuleHandleA( "user32.dll" );
if ( hModule )
{
#define GETADDR( name ) \
@ -188,21 +187,21 @@ void THUNK_InitCallout(void)
GETADDR( MessageBoxW );
#undef GETADDR
}
else WARN("no 32-bit USER\n");
pModule = NE_GetPtr( LoadLibrary16( "USER.EXE" ) );
pModule = NE_GetPtr( GetModuleHandle16( "USER.EXE" ) );
if ( pModule )
{
#define GETADDR( var, name, thk ) \
*(FARPROC *)&Callout.var = THUNK_GetCalloutThunk( pModule, name, \
(RELAY)THUNK_CallTo16_##thk )
GETADDR( PostAppMessage16, "PostAppMessage", word_wwwl );
GETADDR( FinalUserInit16, "FinalUserInit", word_ );
GETADDR( InitThreadInput16, "InitThreadInput", word_ww );
GETADDR( UserYield16, "UserYield", word_ );
GETADDR( DestroyIcon32, "DestroyIcon32", word_ww );
GETADDR( UserSignalProc, "SignalProc32", word_lllw );
#undef GETADDR
}
else WARN("no 16-bit USER\n");
}

1
include/callback.h
View File

@ -31,7 +31,6 @@ typedef struct
BOOL WINAPI (*GetMessageA)( MSG*, HWND, UINT, UINT );
LRESULT WINAPI (*SendMessageA)( HWND, UINT, WPARAM, LPARAM );
BOOL WINAPI (*PostMessageA)( HWND, UINT, WPARAM, LPARAM );
BOOL16 WINAPI (*PostAppMessage16)( HTASK16, UINT16, WPARAM16, LPARAM );
BOOL WINAPI (*TranslateMessage)( const MSG *msg );
LONG WINAPI (*DispatchMessageA)( const MSG* msg );
BOOL WINAPI (*RedrawWindow)( HWND, const RECT *, HRGN, UINT );

2
include/task.h
View File

@ -147,7 +147,7 @@ extern THHOOK *pThhook;
extern BOOL TASK_Create( struct _NE_MODULE *pModule, UINT16 cmdShow,
struct _TEB *teb, LPCSTR cmdline, BYTE len );
extern void TASK_KillTask( HTASK16 hTask );
extern void TASK_ExitTask(void);
extern HTASK16 TASK_GetNextTask( HTASK16 hTask );
extern void TASK_Reschedule(void);
extern void TASK_InstallTHHook( THHOOK *pNewThook );

21
loader/dos/dosvm.c
View File

@ -420,12 +420,15 @@ void DOSVM_Wait( int read_pipe, HANDLE hObject )
objc=hObject?2:1;
do {
/* check for messages (waste time before the response check below) */
while (Callout.PeekMessageA(&msg,0,0,0,PM_REMOVE|PM_NOYIELD)) {
/* got a message */
DOSVM_ProcessMessage(&msg);
/* we don't need a TranslateMessage here */
Callout.DispatchMessageA(&msg);
got_msg = TRUE;
if (Callout.PeekMessageA)
{
while (Callout.PeekMessageA(&msg,0,0,0,PM_REMOVE|PM_NOYIELD)) {
/* got a message */
DOSVM_ProcessMessage(&msg);
/* we don't need a TranslateMessage here */
Callout.DispatchMessageA(&msg);
got_msg = TRUE;
}
}
if (!got_msg) {
/* check for console input */
@ -448,7 +451,11 @@ void DOSVM_Wait( int read_pipe, HANDLE hObject )
break;
}
/* nothing yet, block while waiting for something to do */
waitret=Callout.MsgWaitForMultipleObjects(objc,objs,FALSE,INFINITE,QS_ALLINPUT);
if (Callout.MsgWaitForMultipleObjects)
waitret = Callout.MsgWaitForMultipleObjects(objc,objs,FALSE,INFINITE,QS_ALLINPUT);
else
waitret = WaitForMultipleObjects(objc,objs,FALSE,INFINITE);
if (waitret==(DWORD)-1) {
ERR_(module)("dosvm wait error=%ld\n",GetLastError());
}

6
loader/module.c
View File

@ -827,7 +827,8 @@ HINSTANCE WINAPI WinExec( LPCSTR lpCmdLine, UINT nCmdShow )
0, NULL, NULL, &startup, &info ))
{
/* Give 30 seconds to the app to come up */
if (Callout.WaitForInputIdle ( info.hProcess, 30000 ) == 0xFFFFFFFF)
if (Callout.WaitForInputIdle &&
Callout.WaitForInputIdle( info.hProcess, 30000 ) == 0xFFFFFFFF)
WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
hInstance = 33;
/* Close off the handles */
@ -884,7 +885,8 @@ HINSTANCE WINAPI LoadModule( LPCSTR name, LPVOID paramBlock )
params->lpEnvAddress, NULL, &startup, &info ))
{
/* Give 30 seconds to the app to come up */
if ( Callout.WaitForInputIdle ( info.hProcess, 30000 ) == 0xFFFFFFFF )
if (Callout.WaitForInputIdle &&
Callout.WaitForInputIdle( info.hProcess, 30000 ) == 0xFFFFFFFF )
WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
hInstance = 33;
/* Close off the handles */

54
loader/task.c
View File

@ -379,78 +379,62 @@ static void TASK_DeleteTask( HTASK16 hTask )
/***********************************************************************
* TASK_KillTask
*/
void TASK_KillTask( HTASK16 hTask )
void TASK_ExitTask(void)
{
TDB *pTask;
DWORD lockCount;
/* Enter the Win16Lock to protect global data structures */
SYSLEVEL_EnterWin16Lock();
if ( !hTask ) hTask = GetCurrentTask();
pTask = (TDB *)GlobalLock16( hTask );
pTask = (TDB *)GlobalLock16( GetCurrentTask() );
if ( !pTask )
{
SYSLEVEL_LeaveWin16Lock();
return;
}
TRACE("Killing task %04x\n", hTask );
TRACE("Killing task %04x\n", pTask->hSelf );
/* Perform USER cleanup */
TASK_CallTaskSignalProc( USIG16_TERMINATION, hTask );
TASK_CallTaskSignalProc( USIG16_TERMINATION, pTask->hSelf );
PROCESS_CallUserSignalProc( USIG_PROCESS_EXIT, 0 );
PROCESS_CallUserSignalProc( USIG_THREAD_EXIT, 0 );
PROCESS_CallUserSignalProc( USIG_PROCESS_DESTROY, 0 );
if (nTaskCount <= 1)
/* Remove the task from the list to be sure we never switch back to it */
TASK_UnlinkTask( pTask->hSelf );
if (!nTaskCount || (nTaskCount == 1 && hFirstTask == initial_task))
{
TRACE("this is the last task, exiting\n" );
ERR("done\n");
ExitKernel16();
}
/* FIXME: Hack! Send a message to the initial task so that
* the GetMessage wakes up and the initial task can check whether
* it is the only remaining one and terminate itself ...
* The initial task should probably install hooks or something
* to get informed about task termination :-/
*/
Callout.PostAppMessage16( initial_task, WM_NULL, 0, 0 );
/* Remove the task from the list to be sure we never switch back to it */
TASK_UnlinkTask( hTask );
if( nTaskCount )
{
TDB* p = (TDB *)GlobalLock16( hFirstTask );
while( p )
{
if( p->hYieldTo == hTask ) p->hYieldTo = 0;
if( p->hYieldTo == pTask->hSelf ) p->hYieldTo = 0;
p = (TDB *)GlobalLock16( p->hNext );
}
}
pTask->nEvents = 0;
if ( hLockedTask == hTask )
if ( hLockedTask == pTask->hSelf )
hLockedTask = 0;
TASK_DeleteTask( hTask );
TASK_DeleteTask( pTask->hSelf );
/* When deleting the current task ... */
if ( hTask == hCurrentTask )
{
DWORD lockCount;
/* ... schedule another one ... */
TASK_Reschedule();
/* ... schedule another one ... */
TASK_Reschedule();
/* ... and completely release the Win16Lock, just in case. */
ReleaseThunkLock( &lockCount );
return;
}
SYSLEVEL_LeaveWin16Lock();
/* ... and completely release the Win16Lock, just in case. */
ReleaseThunkLock( &lockCount );
}
/***********************************************************************
@ -838,7 +822,7 @@ void WINAPI Yield16(void)
TDB *pCurTask = (TDB *)GlobalLock16( GetCurrentTask() );
if (pCurTask) pCurTask->hYieldTo = 0;
if (pCurTask && pCurTask->hQueue) Callout.UserYield16();
if (pCurTask && pCurTask->hQueue && Callout.UserYield16) Callout.UserYield16();
else OldYield16();
}
@ -1148,7 +1132,7 @@ HANDLE WINAPI GetFastQueue16( void )
TEB *teb = NtCurrentTeb();
if (!teb) return 0;
if (!teb->queue)
if (!teb->queue && Callout.InitThreadInput16)
Callout.InitThreadInput16( 0, THREAD_IsWin16(teb)? 4 : 5 );
if (!teb->queue)

7
miscemu/main.c
View File

@ -23,6 +23,13 @@ void wine_initial_task(void)
HINSTANCE16 instance;
STARTUPINFOA info;
if (!LoadLibraryA( "user32.dll" ))
{
MESSAGE( "Cannot load user32.dll\n" );
ExitProcess( GetLastError() );
}
THUNK_InitCallout();
GetStartupInfoA( &info );
if (!(info.dwFlags & STARTF_USESHOWWINDOW)) info.wShowWindow = SW_SHOWNORMAL;

16
objects/palette.c
View File

@ -787,14 +787,16 @@ INT16 WINAPI UpdateColors16( HDC16 hDC )
if (!(dc = DC_GetDCPtr( hDC ))) return 0;
size = dc->devCaps->sizePalette;
GDI_ReleaseObj( hDC );
hWnd = Callout.WindowFromDC( hDC );
/* Docs say that we have to remap current drawable pixel by pixel
* but it would take forever given the speed of XGet/PutPixel.
*/
if (hWnd && size)
Callout.RedrawWindow( hWnd, NULL, 0, RDW_INVALIDATE );
if (Callout.WindowFromDC)
{
hWnd = Callout.WindowFromDC( hDC );
/* Docs say that we have to remap current drawable pixel by pixel
* but it would take forever given the speed of XGet/PutPixel.
*/
if (hWnd && size)
Callout.RedrawWindow( hWnd, NULL, 0, RDW_INVALIDATE );
}
return 0x666;
}

54
scheduler/process.c
View File

@ -236,39 +236,6 @@ static BOOL process_init( char *argv[] )
}
/***********************************************************************
* load_system_dlls
*
* Load system DLLs into the initial process (and initialize them)
*/
static int load_system_dlls(void)
{
/* Load KERNEL */
if (!LoadLibraryA( "KERNEL32" )) return 0;
/* Get pointers to USER routines called by KERNEL */
THUNK_InitCallout();
/* Call FinalUserInit routine */
Callout.FinalUserInit16();
/* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
* context of the parent process. Actually, the USER signal proc
* doesn't really care about that, but it *does* require that the
* startup parameters are correctly set up, so that GetProcessDword
* works. Furthermore, before calling the USER signal proc the
* 16-bit stack must be set up, which it is only after TASK_Create
* in the case of a 16-bit process. Thus, we send the signal here.
*/
PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );
return 1;
}
/***********************************************************************
* build_command_line
*
@ -361,14 +328,29 @@ static void start_process(void)
goto error;
wm->refCount++;
/* Load the system dlls */
if (!load_system_dlls()) goto error;
EnterCriticalSection( &current_process.crit_section );
PE_InitTls();
MODULE_DllProcessAttach( current_process.exe_modref, (LPVOID)1 );
LeaveCriticalSection( &current_process.crit_section );
/* Get pointers to USER routines called by KERNEL */
THUNK_InitCallout();
/* Call FinalUserInit routine */
if (Callout.FinalUserInit16) Callout.FinalUserInit16();
/* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
* context of the parent process. Actually, the USER signal proc
* doesn't really care about that, but it *does* require that the
* startup parameters are correctly set up, so that GetProcessDword
* works. Furthermore, before calling the USER signal proc the
* 16-bit stack must be set up, which it is only after TASK_Create
* in the case of a 16-bit process. Thus, we send the signal here.
*/
PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );
/* Call UserSignalProc ( USIG_PROCESS_RUNNING ... ) only for non-GUI win32 apps */
if (console_app) PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );

2
scheduler/thread.c
View File

@ -374,7 +374,7 @@ void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
else
{
MODULE_DllThreadDetach( NULL );
if (!(NtCurrentTeb()->tibflags & TEBF_WIN32)) TASK_KillTask( 0 );
if (!(NtCurrentTeb()->tibflags & TEBF_WIN32)) TASK_ExitTask();
SYSDEPS_ExitThread( code );
}
}

10
win32/except.c
View File

@ -282,7 +282,10 @@ void WINAPI FatalAppExit16( UINT16 action, LPCSTR str )
void WINAPI FatalAppExitA( UINT action, LPCSTR str )
{
WARN("AppExit\n");
Callout.MessageBoxA( 0, str, NULL, MB_SYSTEMMODAL | MB_OK );
if (Callout.MessageBoxA)
Callout.MessageBoxA( 0, str, NULL, MB_SYSTEMMODAL | MB_OK );
else
ERR( "%s\n", debugstr_a(str) );
ExitProcess(0);
}
@ -293,6 +296,9 @@ void WINAPI FatalAppExitA( UINT action, LPCSTR str )
void WINAPI FatalAppExitW( UINT action, LPCWSTR str )
{
WARN("AppExit\n");
Callout.MessageBoxW( 0, str, NULL, MB_SYSTEMMODAL | MB_OK );
if (Callout.MessageBoxW)
Callout.MessageBoxW( 0, str, NULL, MB_SYSTEMMODAL | MB_OK );
else
ERR( "%s\n", debugstr_w(str) );
ExitProcess(0);
}