Index: tcpip.cc
===================================================================
--- tcpip.cc	(revision 15344)
+++ tcpip.cc	(working copy)
@@ -2945,7 +2945,7 @@
   ifr = ifc.ifc_req;
 
   for(ifr = ifc.ifc_req;
-      ifr && ifr->ifr_name[0] && (void *) ifr < ifc.ifc_buf + ifc.ifc_len;
+      ifr && ifr->ifr_name[0] && (void *) ifr < (char *) ifc.ifc_buf + ifc.ifc_len;
       ifr = (struct ifreq *) ((char *) ifr + len)) {
     struct sockaddr_in *sin;
     struct ifreq tmpifr;