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Diffstat (limited to 'sys/netinet/tcp_seq.h')
-rw-r--r--sys/netinet/tcp_seq.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/netinet/tcp_seq.h b/sys/netinet/tcp_seq.h
index a9aa1abc025..4fb8ea2629a 100644
--- a/sys/netinet/tcp_seq.h
+++ b/sys/netinet/tcp_seq.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: tcp_seq.h,v 1.2 1997/02/24 14:06:46 niklas Exp $ */
+/* $OpenBSD: tcp_seq.h,v 1.3 2001/06/09 07:03:43 angelos Exp $ */
/* $NetBSD: tcp_seq.h,v 1.6 1995/03/26 20:32:35 jtc Exp $ */
/*
@@ -36,6 +36,9 @@
* @(#)tcp_seq.h 8.1 (Berkeley) 6/10/93
*/
+#ifndef _NETINET_TCP_SEQ_H_
+#define _NETINET_TCP_SEQ_H_
+
/*
* TCP sequence numbers are 32 bit integers operated
* on with modular arithmetic. These macros can be
@@ -62,4 +65,5 @@
#ifdef _KERNEL
tcp_seq tcp_iss; /* tcp initial send seq # */
-#endif
+#endif /* _KERNEL */
+#endif /* _NETINET_TCP_SEQ_H_ */