From 31290b6b3579c89963013d762b8e56889b0d01e6 Mon Sep 17 00:00:00 2001
From: kdeme <kim.demey@gmail.com>
Date: Thu, 18 Apr 2019 12:25:41 +0200
Subject: [PATCH] Fix to only allow sync for peer with eth support

---
 eth/p2p/blockchain_sync.nim | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/eth/p2p/blockchain_sync.nim b/eth/p2p/blockchain_sync.nim
index 706e761..803e3d1 100644
--- a/eth/p2p/blockchain_sync.nim
+++ b/eth/p2p/blockchain_sync.nim
@@ -331,10 +331,12 @@ proc onPeerDisconnected(ctx: SyncContext, p: Peer) =
 proc startSync(ctx: SyncContext) =
   var po: PeerObserver
   po.onPeerConnected = proc(p: Peer) {.gcsafe.} =
-    ctx.onPeerConnected(p)
+    if p.supports(eth):
+      ctx.onPeerConnected(p)
 
   po.onPeerDisconnected = proc(p: Peer) {.gcsafe.} =
-    ctx.onPeerDisconnected(p)
+    if p.supports(eth):
+      ctx.onPeerDisconnected(p)
 
   ctx.peerPool.addObserver(ctx, po)