From 2cf8fb62c98befb70fedffe739a05bc4ac5a0de8 Mon Sep 17 00:00:00 2001
From: abitmore <abitmore@users.noreply.github.com>
Date: Sat, 30 Jul 2016 05:39:41 +0800
Subject: [PATCH] application.cpp: Validate block timestamps #645

---
 libraries/app/application.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/app/application.cpp b/libraries/app/application.cpp
index 04cf4145..ae991a8e 100644
--- a/libraries/app/application.cpp
+++ b/libraries/app/application.cpp
@@ -508,6 +508,7 @@ namespace detail {
       { try {
 
          auto latency = graphene::time::now() - blk_msg.block.timestamp;
+         FC_ASSERT( (latency.count()/1000) > -5000, "Rejecting block with timestamp in the future" );
          if (!sync_mode || blk_msg.block.block_num() % 10000 == 0)
          {
             const auto& witness = blk_msg.block.witness(*_chain_db);