static int vvalue_tvb_get4(tvbuff_t *tvb, int offset, void *val)
{
	guint32 *ui4 = (guint32*)val;
	*ui4 = tvb_get_letohl(tvb, offset);
	return 4;
}
static int vvalue_tvb_get4(tvbuff_t *tvb, int offset, void *val)
{
	guint32 *ui4 = (guint32*)val;
	*ui4 = tvb_get_letohl(tvb, offset);
	return 4;
}