Package: gtk+
Version: 1.2.6
Subject: Arithmetic overflow in GtkAllocation structure


If user shrink main window very much, gtk library write (for example) :
"Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate
 widget with width 65531 and height 264" and application can't continue
in work.


Test program: http://www.penguin.cz/~martinmv/gtk/

There can be the arithmetic overflow in members width and height
of GtkAllocation structure. Width and height are guin16.

This patch:     declare these variables as gint16 (gtkwidget.h)
               tests if these variables >=0 (gtkwidget.c)


Martin Mevald, [email protected]

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