update: add proper stream checks
This commit is contained in:
Kobi Mizrachi
akallabeth
parent
f92e941129
commit
200f50c1f6
@ -2016,130 +2016,185 @@ static BOOL update_send_set_keyboard_ime_status(rdpContext* context, UINT16 imeI
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return rdp_send_data_pdu(rdp, s, DATA_PDU_TYPE_SET_KEYBOARD_IME_STATUS, rdp->mcs->userId);
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}
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static UINT16 update_calculate_new_or_existing_window(const WINDOW_ORDER_INFO* orderInfo,
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const WINDOW_STATE_ORDER* stateOrder)
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{
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UINT16 orderSize = 11;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_OWNER) != 0)
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orderSize += 4;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_STYLE) != 0)
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orderSize += 8;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_SHOW) != 0)
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orderSize += 1;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_TITLE) != 0)
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orderSize += 2 + stateOrder->titleInfo.length;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_OFFSET) != 0)
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orderSize += 8;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_SIZE) != 0)
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orderSize += 8;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_RESIZE_MARGIN_X) != 0)
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orderSize += 8;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_RESIZE_MARGIN_Y) != 0)
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orderSize += 8;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_RP_CONTENT) != 0)
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orderSize += 1;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_ROOT_PARENT) != 0)
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orderSize += 4;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_OFFSET) != 0)
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orderSize += 8;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_CLIENT_DELTA) != 0)
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orderSize += 8;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_SIZE) != 0)
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orderSize += 8;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_RECTS) != 0)
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orderSize += 2 + stateOrder->numWindowRects * sizeof(RECTANGLE_16);
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_VIS_OFFSET) != 0)
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orderSize += 8;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_VISIBILITY) != 0)
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orderSize += 2 + stateOrder->numVisibilityRects * sizeof(RECTANGLE_16);
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_OVERLAY_DESCRIPTION) != 0)
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orderSize += 2 + stateOrder->OverlayDescription.length;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_TASKBAR_BUTTON) != 0)
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orderSize += 1;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_ENFORCE_SERVER_ZORDER) != 0)
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orderSize += 1;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_APPBAR_STATE) != 0)
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orderSize += 1;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_APPBAR_EDGE) != 0)
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orderSize += 1;
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return orderSize;
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}
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BOOL update_send_new_or_existing_window(rdpContext* context, const WINDOW_ORDER_INFO* orderInfo,
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const WINDOW_STATE_ORDER* stateOrder)
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{
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wStream* s;
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rdpUpdate* update = context->update;
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BYTE controlFlags = ORDER_SECONDARY | (ORDER_TYPE_WINDOW << 2);
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UINT16 orderSize = 11;
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size_t orderSizePos, orderEndPos;
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UINT16 orderSize;
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s = update->us;
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if (!s)
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return FALSE;
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orderSize = update_calculate_new_or_existing_window(orderInfo, stateOrder);
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if (!Stream_EnsureRemainingCapacity(s, orderSize))
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return FALSE;
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Stream_Write_UINT8(s, controlFlags); /* Header (1 byte) */
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orderSizePos = Stream_GetPosition(s);
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Stream_Seek_UINT16(s); /* OrderSize (2 bytes) */
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Stream_Write_UINT16(s, orderSize); /* OrderSize (2 bytes) */
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Stream_Write_UINT32(s, orderInfo->fieldFlags); /* FieldsPresentFlags (4 bytes) */
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Stream_Write_UINT32(s, orderInfo->windowId); /* WindowID (4 bytes) */
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orderSize = 11;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_OWNER) != 0)
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{
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orderSize += 4;
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Stream_Write_UINT32(s, stateOrder->ownerWindowId);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_STYLE) != 0)
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{
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orderSize += 8;
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Stream_Write_UINT32(s, stateOrder->style);
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Stream_Write_UINT32(s, stateOrder->extendedStyle);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_SHOW) != 0)
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{
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orderSize += 1;
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Stream_Write_UINT8(s, stateOrder->showState);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_TITLE) != 0)
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{
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orderSize += 2 + stateOrder->titleInfo.length;
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Stream_Write_UINT16(s, stateOrder->titleInfo.length);
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Stream_Write(s, stateOrder->titleInfo.string, stateOrder->titleInfo.length);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_OFFSET) != 0)
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{
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orderSize += 8;
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Stream_Write_UINT32(s, stateOrder->clientOffsetX);
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Stream_Write_UINT32(s, stateOrder->clientOffsetY);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_SIZE) != 0)
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{
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orderSize += 8;
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Stream_Write_UINT32(s, stateOrder->clientAreaWidth);
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Stream_Write_UINT32(s, stateOrder->clientAreaHeight);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_RESIZE_MARGIN_X) != 0)
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{
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orderSize += 8;
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Stream_Write_UINT32(s, stateOrder->resizeMarginLeft);
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Stream_Write_UINT32(s, stateOrder->resizeMarginRight);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_RESIZE_MARGIN_Y) != 0)
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{
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orderSize += 8;
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Stream_Write_UINT32(s, stateOrder->resizeMarginTop);
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Stream_Write_UINT32(s, stateOrder->resizeMarginBottom);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_RP_CONTENT) != 0)
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{
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orderSize += 1;
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Stream_Write_UINT8(s, stateOrder->RPContent);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_ROOT_PARENT) != 0)
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{
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orderSize += 4;
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Stream_Write_UINT32(s, stateOrder->rootParentHandle);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_OFFSET) != 0)
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{
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orderSize += 8;
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Stream_Write_UINT32(s, stateOrder->windowOffsetX);
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Stream_Write_UINT32(s, stateOrder->windowOffsetY);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_CLIENT_DELTA) != 0)
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{
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orderSize += 8;
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Stream_Write_UINT32(s, stateOrder->windowClientDeltaX);
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Stream_Write_UINT32(s, stateOrder->windowClientDeltaY);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_SIZE) != 0)
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{
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orderSize += 8;
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Stream_Write_UINT32(s, stateOrder->windowWidth);
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Stream_Write_UINT32(s, stateOrder->windowHeight);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_RECTS) != 0)
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{
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orderSize += 2 + stateOrder->numWindowRects * sizeof(RECTANGLE_16);
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Stream_Write_UINT16(s, stateOrder->numWindowRects);
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Stream_Write(s, stateOrder->windowRects, stateOrder->numWindowRects * sizeof(RECTANGLE_16));
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_VIS_OFFSET) != 0)
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{
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orderSize += 8;
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Stream_Write_UINT32(s, stateOrder->visibleOffsetX);
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Stream_Write_UINT32(s, stateOrder->visibleOffsetY);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_VISIBILITY) != 0)
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{
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orderSize += 2 + stateOrder->numVisibilityRects * sizeof(RECTANGLE_16);
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Stream_Write_UINT16(s, stateOrder->numVisibilityRects);
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Stream_Write(s, stateOrder->visibilityRects,
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stateOrder->numVisibilityRects * sizeof(RECTANGLE_16));
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@ -2147,7 +2202,6 @@ BOOL update_send_new_or_existing_window(rdpContext* context, const WINDOW_ORDER_
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_OVERLAY_DESCRIPTION) != 0)
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{
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orderSize += 2 + stateOrder->OverlayDescription.length;
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Stream_Write_UINT16(s, stateOrder->OverlayDescription.length);
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Stream_Write(s, stateOrder->OverlayDescription.string,
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stateOrder->OverlayDescription.length);
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@ -2155,33 +2209,24 @@ BOOL update_send_new_or_existing_window(rdpContext* context, const WINDOW_ORDER_
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_TASKBAR_BUTTON) != 0)
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{
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orderSize += 1;
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Stream_Write_UINT8(s, stateOrder->TaskbarButton);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_ENFORCE_SERVER_ZORDER) != 0)
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{
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orderSize += 1;
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Stream_Write_UINT8(s, stateOrder->EnforceServerZOrder);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_APPBAR_STATE) != 0)
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{
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orderSize += 1;
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Stream_Write_UINT8(s, stateOrder->AppBarState);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_APPBAR_EDGE) != 0)
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{
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orderSize += 1;
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Stream_Write_UINT8(s, stateOrder->AppBarEdge);
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}
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/* Write size */
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orderEndPos = Stream_GetPosition(s);
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Stream_SetPosition(s, orderSizePos);
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Stream_Write_UINT16(s, orderSize);
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Stream_SetPosition(s, orderEndPos);
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update->numberOrders++;
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return TRUE;
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}
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@ -2198,24 +2243,40 @@ BOOL update_send_window_update(rdpContext* context, const WINDOW_ORDER_INFO* ord
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return update_send_new_or_existing_window(context, orderInfo, stateOrder);
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}
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static UINT16 update_calculate_window_icon_order(const WINDOW_ORDER_INFO* orderInfo,
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const WINDOW_ICON_ORDER* iconOrder)
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{
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UINT16 orderSize = 23;
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ICON_INFO* iconInfo = iconOrder->iconInfo;
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orderSize += iconInfo->cbBitsColor + iconInfo->cbBitsMask;
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if (iconInfo->bpp <= 8)
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orderSize += 2 + iconInfo->cbColorTable;
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return orderSize;
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}
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BOOL update_send_window_icon(rdpContext* context, const WINDOW_ORDER_INFO* orderInfo,
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const WINDOW_ICON_ORDER* iconOrder)
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{
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wStream* s;
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rdpUpdate* update = context->update;
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BYTE controlFlags = ORDER_SECONDARY | (ORDER_TYPE_WINDOW << 2);
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UINT16 orderSize = 23;
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size_t orderSizePos, orderEndPos;
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UINT16 orderSize;
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ICON_INFO* iconInfo = iconOrder->iconInfo;
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s = update->us;
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if (!s)
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if (!s || !iconInfo)
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return FALSE;
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orderSize = update_calculate_window_icon_order(orderInfo, iconOrder);
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if (!Stream_EnsureRemainingCapacity(s, orderSize))
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return FALSE;
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/* Write Hdr */
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Stream_Write_UINT8(s, controlFlags); /* Header (1 byte) */
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orderSizePos = Stream_GetPosition(s);
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Stream_Seek_UINT16(s); /* OrderSize (2 bytes) */
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Stream_Write_UINT16(s, orderSize); /* OrderSize (2 bytes) */
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Stream_Write_UINT32(s, orderInfo->fieldFlags); /* FieldsPresentFlags (4 bytes) */
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Stream_Write_UINT32(s, orderInfo->windowId); /* WindowID (4 bytes) */
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/* Write body */
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@ -2228,27 +2289,19 @@ BOOL update_send_window_icon(rdpContext* context, const WINDOW_ORDER_INFO* order
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if (iconInfo->bpp <= 8)
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{
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Stream_Write_UINT16(s, iconInfo->cbColorTable); /* CbColorTable (2 bytes) */
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orderSize += 2;
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}
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Stream_Write_UINT16(s, iconInfo->cbBitsMask); /* CbBitsMask (2 bytes) */
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Stream_Write_UINT16(s, iconInfo->cbBitsColor); /* CbBitsColor (2 bytes) */
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Stream_Write(s, iconInfo->bitsMask, iconInfo->cbBitsMask); /* BitsMask (variable) */
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orderSize += iconInfo->cbBitsMask;
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if (iconInfo->bpp <= 8)
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{
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Stream_Write(s, iconInfo->colorTable, iconInfo->cbColorTable); /* ColorTable (variable) */
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orderSize += iconInfo->cbColorTable;
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}
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Stream_Write(s, iconInfo->bitsColor, iconInfo->cbBitsColor); /* BitsColor (variable) */
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orderSize += iconInfo->cbBitsColor;
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/* Write size */
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orderEndPos = Stream_GetPosition(s);
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Stream_SetPosition(s, orderSizePos);
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Stream_Write_UINT16(s, orderSize);
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Stream_SetPosition(s, orderEndPos);
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update->numberOrders++;
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return TRUE;
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}
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@ -2266,6 +2319,9 @@ BOOL update_send_window_cached_icon(rdpContext* context, const WINDOW_ORDER_INFO
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if (!s)
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return FALSE;
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if (!Stream_EnsureRemainingCapacity(s, orderSize))
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return FALSE;
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/* Write Hdr */
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Stream_Write_UINT8(s, controlFlags); /* Header (1 byte) */
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Stream_Write_UINT16(s, orderSize); /* OrderSize (2 bytes) */
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@ -2289,6 +2345,9 @@ BOOL update_send_window_delete(rdpContext* context, const WINDOW_ORDER_INFO* ord
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if (!s)
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return FALSE;
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if (!Stream_EnsureRemainingCapacity(s, orderSize))
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return FALSE;
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/* Write Hdr */
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Stream_Write_UINT8(s, controlFlags); /* Header (1 byte) */
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Stream_Write_UINT16(s, orderSize); /* OrderSize (2 bytes) */
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@ -2298,6 +2357,48 @@ BOOL update_send_window_delete(rdpContext* context, const WINDOW_ORDER_INFO* ord
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return TRUE;
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}
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static UINT16 update_calculate_new_or_existing_notification_icons_order(
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const WINDOW_ORDER_INFO* orderInfo, const NOTIFY_ICON_STATE_ORDER* iconStateOrder)
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{
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UINT16 orderSize = 15;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_VERSION) != 0)
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orderSize += 4;
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_TIP) != 0)
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{
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orderSize += 2 + iconStateOrder->toolTip.length;
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_INFO_TIP) != 0)
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{
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NOTIFY_ICON_INFOTIP infoTip = iconStateOrder->infoTip;
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orderSize += 12 + infoTip.text.length + infoTip.title.length;
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_STATE) != 0)
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{
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orderSize += 4;
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_ICON) != 0)
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{
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ICON_INFO iconInfo = iconStateOrder->icon;
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orderSize += 12;
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if (iconInfo.bpp <= 8)
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orderSize += 2 + iconInfo.cbColorTable;
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orderSize += iconInfo.cbBitsMask + iconInfo.cbBitsColor;
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}
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else if ((orderInfo->fieldFlags & WINDOW_ORDER_CACHED_ICON) != 0)
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{
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orderSize += 3;
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}
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return orderSize;
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}
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BOOL update_send_new_or_existing_notification_icons(rdpContext* context,
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const WINDOW_ORDER_INFO* orderInfo,
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const NOTIFY_ICON_STATE_ORDER* iconStateOrder)
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@ -2305,18 +2406,22 @@ BOOL update_send_new_or_existing_notification_icons(rdpContext* context,
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wStream* s;
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rdpUpdate* update = context->update;
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BYTE controlFlags = ORDER_SECONDARY | (ORDER_TYPE_WINDOW << 2);
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UINT16 orderSize = 15;
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size_t orderSizePos, orderEndPos;
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UINT16 orderSize;
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BOOL versionFieldPresent = FALSE;
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s = update->us;
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if (!s)
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return FALSE;
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orderSize =
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update_calculate_new_or_existing_notification_icons_order(orderInfo, iconStateOrder);
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if (!Stream_EnsureRemainingCapacity(s, orderSize))
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return FALSE;
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/* Write Hdr */
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Stream_Write_UINT8(s, controlFlags); /* Header (1 byte) */
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orderSizePos = Stream_GetPosition(s);
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Stream_Seek_UINT16(s); /* OrderSize (2 bytes) */
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Stream_Write_INT16(s, orderSize); /* OrderSize (2 bytes) */
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Stream_Write_UINT32(s, orderInfo->fieldFlags); /* FieldsPresentFlags (4 bytes) */
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Stream_Write_UINT32(s, orderInfo->windowId); /* WindowID (4 bytes) */
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Stream_Write_UINT32(s, orderInfo->notifyIconId); /* NotifyIconId (4 bytes) */
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@ -2325,14 +2430,11 @@ BOOL update_send_new_or_existing_notification_icons(rdpContext* context,
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_VERSION) != 0)
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{
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versionFieldPresent = TRUE;
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orderSize += 4;
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Stream_Write_UINT32(s, iconStateOrder->version);
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}
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if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_TIP) != 0)
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{
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orderSize += 2 + iconStateOrder->toolTip.length;
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Stream_Write_UINT16(s, iconStateOrder->toolTip.length);
|
||||
Stream_Write(s, iconStateOrder->toolTip.string, iconStateOrder->toolTip.length);
|
||||
}
|
||||
@ -2345,7 +2447,6 @@ BOOL update_send_new_or_existing_notification_icons(rdpContext* context,
|
||||
if (versionFieldPresent && iconStateOrder->version == 0)
|
||||
return FALSE;
|
||||
|
||||
orderSize += 12 + infoTip.text.length + infoTip.title.length;
|
||||
Stream_Write_UINT32(s, infoTip.timeout); /* Timeout (4 bytes) */
|
||||
Stream_Write_UINT32(s, infoTip.flags); /* InfoFlags (4 bytes) */
|
||||
Stream_Write_UINT16(s, infoTip.text.length); /* InfoTipText (variable) */
|
||||
@ -2354,17 +2455,18 @@ BOOL update_send_new_or_existing_notification_icons(rdpContext* context,
|
||||
Stream_Write(s, infoTip.title.string, infoTip.title.length);
|
||||
}
|
||||
|
||||
if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_STATE) != 0 &&
|
||||
iconStateOrder->version != 0)
|
||||
if ((orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_STATE) != 0)
|
||||
{
|
||||
orderSize += 4;
|
||||
/* notify state should not be sent when version is 0 */
|
||||
if (versionFieldPresent && iconStateOrder->version == 0)
|
||||
return FALSE;
|
||||
|
||||
Stream_Write_UINT32(s, iconStateOrder->state);
|
||||
}
|
||||
|
||||
if ((orderInfo->fieldFlags & WINDOW_ORDER_ICON) != 0)
|
||||
{
|
||||
ICON_INFO iconInfo = iconStateOrder->icon;
|
||||
orderSize += 12;
|
||||
Stream_Write_UINT16(s, iconInfo.cacheEntry); /* CacheEntry (2 bytes) */
|
||||
Stream_Write_UINT8(s, iconInfo.cacheId); /* CacheId (1 byte) */
|
||||
Stream_Write_UINT8(s, iconInfo.bpp); /* Bpp (1 byte) */
|
||||
@ -2374,7 +2476,6 @@ BOOL update_send_new_or_existing_notification_icons(rdpContext* context,
|
||||
if (iconInfo.bpp <= 8)
|
||||
{
|
||||
Stream_Write_UINT16(s, iconInfo.cbColorTable); /* CbColorTable (2 bytes) */
|
||||
orderSize += 2;
|
||||
}
|
||||
|
||||
Stream_Write_UINT16(s, iconInfo.cbBitsMask); /* CbBitsMask (2 bytes) */
|
||||
@ -2385,25 +2486,17 @@ BOOL update_send_new_or_existing_notification_icons(rdpContext* context,
|
||||
if (iconInfo.bpp <= 8)
|
||||
{
|
||||
Stream_Write(s, iconInfo.colorTable, iconInfo.cbColorTable); /* ColorTable (variable) */
|
||||
orderSize += iconInfo.cbColorTable;
|
||||
}
|
||||
|
||||
Stream_Write(s, iconInfo.bitsColor, iconInfo.cbBitsColor); /* BitsColor (variable) */
|
||||
orderSize += iconInfo.cbBitsColor;
|
||||
}
|
||||
else if ((orderInfo->fieldFlags & WINDOW_ORDER_CACHED_ICON) != 0)
|
||||
{
|
||||
CACHED_ICON_INFO cachedIcon = iconStateOrder->cachedIcon;
|
||||
orderSize += 3;
|
||||
Stream_Write_UINT16(s, cachedIcon.cacheEntry); /* CacheEntry (2 bytes) */
|
||||
Stream_Write_UINT8(s, cachedIcon.cacheId); /* CacheId (1 byte) */
|
||||
}
|
||||
|
||||
/* Write size */
|
||||
orderEndPos = Stream_GetPosition(s);
|
||||
Stream_SetPosition(s, orderSizePos);
|
||||
Stream_Write_UINT16(s, orderSize);
|
||||
Stream_SetPosition(s, orderEndPos);
|
||||
update->numberOrders++;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user