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Diffstat (limited to 'sys/netinet/tcpip.h')
-rw-r--r--sys/netinet/tcpip.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/netinet/tcpip.h b/sys/netinet/tcpip.h
index 69e54216080b..cd17fa5cfbc7 100644
--- a/sys/netinet/tcpip.h
+++ b/sys/netinet/tcpip.h
@@ -31,9 +31,12 @@
* SUCH DAMAGE.
*
* from: @(#)tcpip.h 7.4 (Berkeley) 6/28/90
- * $Id: tcpip.h,v 1.2 1993/10/16 18:26:40 rgrimes Exp $
+ * $Id: tcpip.h,v 1.3 1993/11/07 17:48:12 wollman Exp $
*/
+#ifndef _NETINET_TCPIP_H_
+#define _NETINET_TCPIP_H_ 1
+
/*
* Tcp+ip header, after ip options removed.
*/
@@ -58,3 +61,4 @@ struct tcpiphdr {
#define ti_win ti_t.th_win
#define ti_sum ti_t.th_sum
#define ti_urp ti_t.th_urp
+#endif /* _NETINET_TCPIP_H_ */