From b320129e9b42f56abc8f6cbcd4eafe82c22df674 Mon Sep 17 00:00:00 2001
From: Javed Khan <tuxcanfly@gmail.com>
Date: Thu, 3 Nov 2016 01:34:45 +0530
Subject: [PATCH] server: Check max peers before connecting

---
 server.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/server.go b/server.go
index 2c5d3fd5a..4a9fec488 100644
--- a/server.go
+++ b/server.go
@@ -1437,6 +1437,11 @@ func (s *server) handleQuery(state *peerState, querymsg interface{}) {
 
 	case connectNodeMsg:
 		// XXX(oga) duplicate oneshots?
+		// Limit max number of total peers.
+		if state.Count() >= cfg.MaxPeers {
+			msg.reply <- errors.New("max peers reached")
+			return
+		}
 		for _, peer := range state.persistentPeers {
 			if peer.Addr() == msg.addr {
 				if msg.permanent {