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Truncate the window text if it is too large for the request buffer.

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Alexandre Julliard 2001-11-16 18:14:17 +00:00
parent d9ed57ac99
commit 44cd974fff
1 changed files with 8 additions and 4 deletions
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12
windows/defwnd.c
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@ -75,13 +75,15 @@ static void DEFWND_SetTextA( HWND hwnd, LPCSTR text )
if (!(wndPtr = WIN_GetPtr( hwnd ))) return; if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
if ((textW = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR)))) if ((textW = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
{ {
size_t len = min( REQUEST_MAX_VAR_SIZE, (count-1) * sizeof(WCHAR) );
if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text); if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text);
wndPtr->text = textW; wndPtr->text = textW;
MultiByteToWideChar( CP_ACP, 0, text, -1, textW, count ); MultiByteToWideChar( CP_ACP, 0, text, -1, textW, count );
SERVER_START_VAR_REQ( set_window_text, (count-1) * sizeof(WCHAR) ) SERVER_START_VAR_REQ( set_window_text, len )
{ {
req->handle = hwnd; req->handle = hwnd;
memcpy( server_data_ptr(req), textW, (count-1) * sizeof(WCHAR) ); memcpy( server_data_ptr(req), textW, len );
SERVER_CALL(); SERVER_CALL();
} }
SERVER_END_VAR_REQ; SERVER_END_VAR_REQ;
@ -111,11 +113,13 @@ static void DEFWND_SetTextW( HWND hwnd, LPCWSTR text )
if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text); if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text);
if ((wndPtr->text = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR)))) if ((wndPtr->text = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
{ {
size_t len = min( REQUEST_MAX_VAR_SIZE, (count-1) * sizeof(WCHAR) );
strcpyW( wndPtr->text, text ); strcpyW( wndPtr->text, text );
SERVER_START_VAR_REQ( set_window_text, (count-1) * sizeof(WCHAR) ) SERVER_START_VAR_REQ( set_window_text, len )
{ {
req->handle = hwnd; req->handle = hwnd;
memcpy( server_data_ptr(req), wndPtr->text, (count-1) * sizeof(WCHAR) ); memcpy( server_data_ptr(req), wndPtr->text, len );
SERVER_CALL(); SERVER_CALL();
} }
SERVER_END_VAR_REQ; SERVER_END_VAR_REQ;