--- gvpe/src/device.h	2004/01/17 01:18:36	1.15
+++ gvpe/src/device.h	2005/03/03 07:24:57	1.16
@@ -31,6 +31,7 @@
   u32 len; // actually u16, but padding...
 
   u8 &operator[] (u16 offset) const;
+  u8 *at (u16 offset) const;
 
   void unshift_hdr (u16 hdrsize)
     {
@@ -88,6 +89,12 @@
   return ((data_packet *)this)->data_[offset];
 }
 
+inline 
+u8 *net_packet::at (u16 offset) const
+{
+  return &((*this)[offset]);
+}
+
 struct tap_packet : net_packet {
   mac dst;
   mac src;