From c0bdd511c3309e78488051f6a21b0b30ed25af44 Mon Sep 17 00:00:00 2001
From: Thomas Winget <tewinget@gmail.com>
Date: Tue, 30 Sep 2014 15:24:43 -0400
Subject: [PATCH] Daemon should now exit on conflicting checkpoints

If the "enforce DNS checkpoints" flag is not enabled, it should not exit
if DNS checkpoints conflict with the others, but should still print a
warning to the user.
---
 src/cryptonote_core/cryptonote_core.cpp | 12 ++++++++++++
 src/cryptonote_core/cryptonote_core.h   |  1 +
 2 files changed, 13 insertions(+)

diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp
index c83e6e0a..d9d8a7fa 100644
--- a/src/cryptonote_core/cryptonote_core.cpp
+++ b/src/cryptonote_core/cryptonote_core.cpp
@@ -41,6 +41,7 @@ using namespace epee;
 #include "cryptonote_config.h"
 #include "cryptonote_format_utils.h"
 #include "misc_language.h"
+#include <csignal>
 
 DISABLE_VS_WARNINGS(4355)
 
@@ -98,6 +99,12 @@ namespace cryptonote
       res = m_blockchain_storage.update_checkpoints(m_checkpoints_path, false);
       m_last_json_checkpoints_update = time(NULL);
     }
+
+    // if anything fishy happened getting new checkpoints, bring down the house
+    if (!res)
+    {
+      graceful_exit();
+    }
     return res;
   }
   //-----------------------------------------------------------------------------------
@@ -583,4 +590,9 @@ namespace cryptonote
   uint64_t core::get_target_blockchain_height() const {
     return m_target_blockchain_height;
   }
+  //-----------------------------------------------------------------------------------------------
+  void core::graceful_exit()
+  {
+    raise(SIGTERM);
+  }
 }
diff --git a/src/cryptonote_core/cryptonote_core.h b/src/cryptonote_core/cryptonote_core.h
index 0c697df8..10522451 100644
--- a/src/cryptonote_core/cryptonote_core.h
+++ b/src/cryptonote_core/cryptonote_core.h
@@ -145,6 +145,7 @@ namespace cryptonote
      bool handle_command_line(const boost::program_options::variables_map& vm, bool testnet);
      bool on_update_blocktemplate_interval();
      bool check_tx_inputs_keyimages_diff(const transaction& tx);
+     void graceful_exit();
 
 
      tx_memory_pool m_mempool;