send 3 closest floodfills

I2NPProtocol.cpp

@@ -184,18 +184,18 @@ namespace i2p
 	
 
 	I2NPMessage * CreateDatabaseSearchReply (const i2p::data::IdentHash& ident, 
-		const i2p::data::RouterInfo * floodfill)
+		 std::vector<i2p::data::IdentHash> routers)
 	{
 		I2NPMessage * m = NewI2NPShortMessage ();
 		uint8_t * buf = m->GetPayload ();
 		size_t len = 0;
 		memcpy (buf, ident, 32);
 		len += 32;
-		buf[len] = floodfill ? 1 : 0; // 1 router for now
+		buf[len] = routers.size (); 
 		len++;
-		if (floodfill)
+		for (auto it: routers)
 		{
-			memcpy (buf + len, floodfill->GetIdentHash (), 32);
+			memcpy (buf + len, it, 32);
 			len += 32;
 		}	
 		memcpy (buf + len, i2p::context.GetRouterInfo ().GetIdentHash (), 32);

I2NPProtocol.h

@@ -194,7 +194,7 @@ namespace tunnel
 	I2NPMessage * CreateLeaseSetDatabaseLookupMsg (const i2p::data::IdentHash& dest, 
 		const std::set<i2p::data::IdentHash>& excludedFloodfills,
 		const i2p::tunnel::InboundTunnel * replyTunnel, const uint8_t * replyKey, const uint8_t * replyTag);
-	I2NPMessage * CreateDatabaseSearchReply (const i2p::data::IdentHash& ident, const i2p::data::RouterInfo * floodfill);
+	I2NPMessage * CreateDatabaseSearchReply (const i2p::data::IdentHash& ident, std::vector<i2p::data::IdentHash> routers);
 	
 	I2NPMessage * CreateDatabaseStoreMsg (const i2p::data::RouterInfo * router = nullptr, uint32_t replyToken = 0);
 	I2NPMessage * CreateDatabaseStoreMsg (const i2p::data::LeaseSet * leaseSet, uint32_t replyToken = 0);		

NetDb.cpp

@@ -664,16 +664,15 @@ namespace data
 
 		I2NPMessage * replyMsg = nullptr;
 
+		auto router = FindRouter (buf);
+		if (router)
 		{
-			auto router = FindRouter (buf);
-			if (router)
-			{
-				LogPrint ("Requested RouterInfo ", key, " found");
-				router->LoadBuffer ();
-				if (router->GetBuffer ()) 
-					replyMsg = CreateDatabaseStoreMsg (router.get ());
-			}
+			LogPrint ("Requested RouterInfo ", key, " found");
+			router->LoadBuffer ();
+			if (router->GetBuffer ()) 
+				replyMsg = CreateDatabaseStoreMsg (router.get ());
 		}
+		
 		if (!replyMsg)
 		{
 			auto leaseSet = FindLeaseSet (buf);
@@ -693,7 +692,14 @@ namespace data
 				excludedRouters.insert (excluded);
 				excluded += 32;
 			}	
-			replyMsg = CreateDatabaseSearchReply (buf, GetClosestFloodfill (buf, excludedRouters).get ());
+			std::vector<IdentHash> routers;
+			for (int i = 0; i < 3; i++)
+			{
+				auto floodfill = GetClosestFloodfill (buf, excludedRouters);
+				if (floodfill)
+					routers.push_back (floodfill->GetIdentHash ());
+			}	
+			replyMsg = CreateDatabaseSearchReply (buf, routers);
 		}
 		else
 			excluded += numExcluded*32; // we don't care about exluded