--- Net2/net/slcompress.h	2018/04/24 18:13:17	1.1.1.2
+++ Net2/net/slcompress.h	2018/04/24 18:21:42	1.1.1.3
@@ -2,7 +2,7 @@
 /*
  * Definitions for tcp compression routines.
  *
- * $Header: /var/lib/cvsd/net2/Net2/net/slcompress.h,v 1.1.1.2 2018/04/24 18:13:17 root Exp $
+ * /b/source/CVS/src/sys/net/slcompress.h,v 1.3 1993/05/20 03:06:13 cgd Exp
  *
  * Copyright (c) 1989 Regents of the University of California.
  * All rights reserved.
@@ -37,8 +37,13 @@
  *
  *	Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989:
  *	- Initial distribution.
+ *
+ *	slcompress.h,v 1.3 1993/05/20 03:06:13 cgd Exp
  */
 
+#ifndef _NET_SLCOMPRESS_H_
+#define _NET_SLCOMPRESS_H_
+
 #define MAX_STATES 16		/* must be > 2 and < 256 */
 #define MAX_HDR MLEN		/* XXX 4bsd-ism: should really be 128 */
 
@@ -155,3 +160,5 @@ extern void sl_compress_init(/* struct s
 extern u_char sl_compress_tcp(/* struct mbuf *, struct ip *,
 				struct slcompress *, int compress_cid_flag */);
 extern int sl_uncompress_tcp(/* u_char **, int,  u_char, struct slcompress * */);
+
+#endif /* !_NET_SLCOMPRESS_H_ */