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Diffstat (limited to 'sys/netinet/ip_esp.h')
-rw-r--r--sys/netinet/ip_esp.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/netinet/ip_esp.h b/sys/netinet/ip_esp.h
index a4dc7ce5786..3146ebaf1ef 100644
--- a/sys/netinet/ip_esp.h
+++ b/sys/netinet/ip_esp.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ip_esp.h,v 1.29 2000/01/09 23:42:37 angelos Exp $ */
+/* $OpenBSD: ip_esp.h,v 1.30 2000/01/13 05:03:45 angelos Exp $ */
/*
* The authors of this code are John Ioannidis (ji@tla.org),
@@ -40,6 +40,9 @@
* Per RFC1827 (Atkinson, 1995)
*/
+#ifndef _NETINET_ESP_H_
+#define _NETINET_ESP_H_
+
/* Various defines for the "new" ESP */
#define ESP_NEW_ALEN 12 /* 96bits authenticator */
@@ -103,4 +106,5 @@ int esp6_input __P((struct mbuf **, int *, int));
extern int esp_enable;
struct espstat espstat;
-#endif /* _Kernel */
+#endif /* _KERNEL */
+#endif _NETINET_ESP_H_