Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

===================================================================
RCS file: /ftp/cvs/cvsroot/src/sys/netinet/ip_input.c,v
rcsdiff: /ftp/cvs/cvsroot/src/sys/netinet/ip_input.c,v: warning: Unknown phrases like `commitid ...;' are present.
retrieving revision 1.67
retrieving revision 1.68
diff -u -p -r1.67 -r1.68
--- src/sys/netinet/ip_input.c	1998/06/01 00:39:37	1.67
+++ src/sys/netinet/ip_input.c	1998/07/17 00:28:00	1.68
@@ -1,4 +1,4 @@
-/*	$NetBSD: ip_input.c,v 1.67 1998/06/01 00:39:37 thorpej Exp $	*/
+/*	$NetBSD: ip_input.c,v 1.68 1998/07/17 00:28:00 sommerfe Exp $	*/
 
 /*-
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -329,7 +329,10 @@ next:
 			rv = pfh->pfil_func(ip, hlen, m->m_pkthdr.rcvif, 0, &m0);
 			if (rv)
 				goto next;
-			ip = mtod(m = m0, struct ip *);
+			m = m0;
+			if (m == NULL)
+				goto next;
+			ip = mtod(m, struct ip *);
 		}
 #endif /* PFIL_HOOKS */