From e50377e55774777a912e1eed694261ad73ec238b Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Wed, 27 Aug 2014 22:21:29 -0400
Subject: [PATCH] random pick tunnels

---
 Tunnel.cpp     |  2 +-
 TunnelPool.cpp | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/Tunnel.cpp b/Tunnel.cpp
index 75f89c0e..5a736f61 100644
--- a/Tunnel.cpp
+++ b/Tunnel.cpp
@@ -273,7 +273,7 @@ namespace tunnel
 		OutboundTunnel * tunnel = nullptr;
 		for (auto it: m_OutboundTunnels)
 		{	
-			if (i >= ind) return it;
+			if (i >= ind) break;
 			if (it->IsEstablished ())
 			{
 				tunnel = it;
diff --git a/TunnelPool.cpp b/TunnelPool.cpp
index 590e459f..6481fa40 100644
--- a/TunnelPool.cpp
+++ b/TunnelPool.cpp
@@ -91,10 +91,20 @@ namespace tunnel
 		if (tunnels.empty ()) return nullptr;
 		if (suggested && tunnels.count (suggested) > 0 && suggested->IsEstablished ())
 				return suggested;
+		
+		CryptoPP::RandomNumberGenerator& rnd = i2p::context.GetRandomNumberGenerator ();
+		uint32_t ind = rnd.GenerateWord32 (0, tunnels.size ()/2), i = 0;
+		typename TTunnels::value_type tunnel = nullptr;
 		for (auto it: tunnels)
+		{	
+			if (i >= ind) break;
 			if (it->IsEstablished ())
-					return it;
-		return nullptr;
+			{
+				tunnel = it;
+				i++;
+			}
+		}	
+		return tunnel;
 	}
 
 	void TunnelPool::CreateTunnels ()