From aee742e7675dfc125f31fbe00fafeda53c532b05 Mon Sep 17 00:00:00 2001
From: Adam Ierymenko <adam.ierymenko@gmail.com>
Date: Thu, 10 Apr 2014 16:30:15 -0700
Subject: More toward GitHub issue #56

---
 node/AntiRecursion.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'node/AntiRecursion.hpp')

diff --git a/node/AntiRecursion.hpp b/node/AntiRecursion.hpp
index 82cf9e58..23b0f04c 100644
--- a/node/AntiRecursion.hpp
+++ b/node/AntiRecursion.hpp
@@ -89,7 +89,7 @@ public:
 	{
 		for(unsigned int h=0;h<ZT_ANTIRECURSION_HISTORY_SIZE;++h) {
 			ArItem *i = &(_history[h]);
-			if ((len >= i->len)&&(!memcmp(((const unsigned char *)data) + (len - i->len),i->tail,i->len)))
+			if ((i->len > 0)&&(len >= i->len)&&(!memcmp(((const unsigned char *)data) + (len - i->len),i->tail,i->len)))
 				return false;
 		}
 		return true;
-- 
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