comctl32: Added input validation to TOOLTIPS_GetTextW() in order to handle…

comctl32: Added input validation to TOOLTIPS_GetTextW() in order to handle gracefully the case where it is called with an empty tooltip.

comctl32: Added input validation to TOOLTIPS_GetTextW() in order to handle…
accb5f8f · Will Tipton · Alexandre Julliard · 497377ec · accb5f8f
Commit accb5f8f authored Aug 11, 2008 by Will Tipton Committed by Alexandre Julliard Aug 18, 2008
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tooltips.c dlls/comctl32/tooltips.c +3 -0

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--- a/dlls/comctl32/tooltips.c
+++ b/dlls/comctl32/tooltips.c
@@ -1574,6 +1574,9 @@ TOOLTIPS_GetTextW (HWND hwnd, WPARAM wParam, LPARAM lParam)
    nTool = TOOLTIPS_GetToolFromInfoW (infoPtr, lpToolInfo);
    if (nTool == -1) return 0;

+    if (infoPtr->tools[nTool].lpszText == NULL)
+	return 0;
+
    strcpyW (lpToolInfo->lpszText, infoPtr->tools[nTool].lpszText);

    return 0;