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-rw-r--r--include/rijndael.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/rijndael.h b/include/rijndael.h
index 89963a85c99..71df1c48dbf 100644
--- a/include/rijndael.h
+++ b/include/rijndael.h
@@ -1,3 +1,6 @@
+#ifndef RIJNDAEL_INCLUDED
+#define RIJNDAEL_INCLUDED
+
/* Copyright (C) 2002 MySQL AB
This program is free software; you can redistribute it and/or modify
@@ -39,3 +42,5 @@ void rijndaelEncrypt(const uint32 rk[/*4*(Nr + 1)*/], int Nr,
const uint8 pt[16], uint8 ct[16]);
void rijndaelDecrypt(const uint32 rk[/*4*(Nr + 1)*/], int Nr,
const uint8 ct[16], uint8 pt[16]);
+
+#endif /* RIJNDAEL_INCLUDED */