text: // Copyright (c) 2020-2021 The DRiyal Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include <consensus/consensus.h>
  #include <net.h>
  #include <net_processing.h>
  #include <protocol.h>
  #include <test/fuzz/FuzzedDataProvider.h>
  #include <test/fuzz/fuzz.h>
  #include <test/fuzz/util.h>
  #include <test/util/mining.h>
  #include <test/util/net.h>
  #include <test/util/setup_common.h>
  #include <test/util/validation.h>
  #include <txorphanage.h>
  #include <validation.h>
  #include <validationinterface.h>
  
  namespace {
  const TestingSetup* g_setup;
  } // namespace
  
  void initialize_process_messages()
  {
      static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();
      g_setup = testing_setup.get();
      for (int i = 0; i < 2 * COINBASE_MATURITY; i++) {
          MineBlock(g_setup->m_node, CScript() << OP_TRUE);
      }
      SyncWithValidationInterfaceQueue();
  }
  
  FUZZ_TARGET_INIT(process_messages, initialize_process_messages)
  {
      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  
      ConnmanTestMsg& connman = *static_cast<ConnmanTestMsg*>(g_setup->m_node.connman.get());
      TestChainState& chainstate = *static_cast<TestChainState*>(&g_setup->m_node.chainman->ActiveChainstate());
      SetMockTime(1610000000); // any time to successfully reset ibd
      chainstate.ResetIbd();
  
      std::vector<CNode*> peers;
      const auto num_peers_to_add = fuzzed_data_provider.ConsumeIntegralInRange(1, 3);
      for (int i = 0; i < num_peers_to_add; ++i) {
          peers.push_back(ConsumeNodeAsUniquePtr(fuzzed_data_provider, i).release());
          CNode& p2p_node = *peers.back();
  
          g_setup->m_node.peerman->InitializeNode(&p2p_node);
          FillNode(fuzzed_data_provider, connman, *g_setup->m_node.peerman, p2p_node);
  
          connman.AddTestNode(p2p_node);
      }
  
      LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
          const std::string random_message_type{fuzzed_data_provider.ConsumeBytesAsString(CMessageHeader::COMMAND_SIZE).c_str()};
  
          const auto mock_time = ConsumeTime(fuzzed_data_provider);
          SetMockTime(mock_time);
  
          CSerializedNetMsg net_msg;
          net_msg.m_type = random_message_type;
          net_msg.data = ConsumeRandomLengthByteVector(fuzzed_data_provider);
  
          CNode& random_node = *PickValue(fuzzed_data_provider, peers);
  
          (void)connman.ReceiveMsgFrom(random_node, net_msg);
          random_node.fPauseSend = false;
  
          try {
              connman.ProcessMessagesOnce(random_node);
          } catch (const std::ios_base::failure&) {
          }
          {
              LOCK(random_node.cs_sendProcessing);
              g_setup->m_node.peerman->SendMessages(&random_node);
          }
      }
      SyncWithValidationInterfaceQueue();
      g_setup->m_node.connman->StopNodes();
  }
  