--- Net2/netiso/iso_pcb.h	2018/04/24 18:03:58	1.1.1.1
+++ Net2/netiso/iso_pcb.h	2018/04/24 18:17:08	1.1.1.3
@@ -30,9 +30,13 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)iso_pcb.h	7.5 (Berkeley) 5/6/91
+ *	from: @(#)iso_pcb.h	7.5 (Berkeley) 5/6/91
+ *	iso_pcb.h,v 1.3 1993/05/20 05:27:20 cgd Exp
  */
 
+#ifndef _NETISO_ISO_PCB_H_
+#define _NETISO_ISO_PCB_H_
+
 /***********************************************************
 		Copyright IBM Corporation 1987
 
@@ -59,8 +63,6 @@ SOFTWARE.
 /*
  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
  */
-/* $Header: /var/lib/cvsd/net2/Net2/netiso/iso_pcb.h,v 1.1.1.1 2018/04/24 18:03:58 root Exp $ */
-/* $Source: /var/lib/cvsd/net2/Net2/netiso/iso_pcb.h,v $ */
 
 #define	MAXX25CRUDLEN	16	/* 16 bytes of call request user data */
 
@@ -110,3 +112,5 @@ struct rawisopcb {
 #ifdef KERNEL
 struct	isopcb *iso_pcblookup();
 #endif
+
+#endif /* !_NETISO_ISO_PCB_H_ */