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-rw-r--r--sys/netinet/udp.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/netinet/udp.h b/sys/netinet/udp.h
index d6ecd5c8f7c2..b4e00136bcc6 100644
--- a/sys/netinet/udp.h
+++ b/sys/netinet/udp.h
@@ -31,9 +31,12 @@
* SUCH DAMAGE.
*
* from: @(#)udp.h 7.4 (Berkeley) 6/28/90
- * $Id: udp.h,v 1.2 1993/10/16 18:26:41 rgrimes Exp $
+ * $Id: udp.h,v 1.3 1993/11/07 17:48:13 wollman Exp $
*/
+#ifndef _NETINET_UDP_H_
+#define _NETINET_UDP_H_ 1
+
/*
* Udp protocol header.
* Per RFC 768, September, 1981.
@@ -44,3 +47,4 @@ struct udphdr {
short uh_ulen; /* udp length */
u_short uh_sum; /* udp checksum */
};
+#endif /* _NETINET_UDP_H_ */