added overflow checking for text coordinates.

diff --git a/lib/modules/swftext.c b/lib/modules/swftext.c
index c4b162f..a01e10b 100644 (file)
--- a/lib/modules/swftext.c
+++ b/lib/modules/swftext.c
@@ -1020,10 +1020,16 @@ int swf_TextSetInfoRecord(TAG * t, SWFFONT * font, U16 size, RGBA * color, int d
        else
            swf_SetRGB(t, color);
     }
-    if (dx)
+    if (dx) {
+       if(dx>32767 || dx<-32768)
+           fprintf(stderr, "Warning: Horizontal char position overflow: %d\n", dx);
        swf_SetS16(t, dx);
-    if (dy)
+    }
+    if (dy) {
+       if(dy>32767 || dy<-32768)
+           fprintf(stderr, "Warning: Vertical char position overflow: %d\n", dy);
        swf_SetS16(t, dy);
+    }
     if (font)
        swf_SetU16(t, size);