text: // Copyright (c) 2020 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include <banman.h>
  #include <chainparams.h>
  #include <consensus/consensus.h>
  #include <net.h>
  #include <net_processing.h>
  #include <protocol.h>
  #include <scheduler.h>
  #include <script/script.h>
  #include <streams.h>
  #include <test/fuzz/FuzzedDataProvider.h>
  #include <test/fuzz/fuzz.h>
  #include <test/util/mining.h>
  #include <test/util/net.h>
  #include <test/util/setup_common.h>
  #include <test/util/validation.h>
  #include <util/memory.h>
  #include <validationinterface.h>
  #include <version.h>
  
  #include <atomic>
  #include <cassert>
  #include <chrono>
  #include <cstdint>
  #include <iosfwd>
  #include <iostream>
  #include <memory>
  #include <string>
  #include <vector>
  
  namespace {
  
  #ifdef MESSAGE_TYPE
  #define TO_STRING_(s) #s
  #define TO_STRING(s) TO_STRING_(s)
  const std::string LIMIT_TO_MESSAGE_TYPE{TO_STRING(MESSAGE_TYPE)};
  #else
  const std::string LIMIT_TO_MESSAGE_TYPE;
  #endif
  
  const RegTestingSetup* g_setup;
  } // namespace
  
  void initialize_process_message()
  {
      static TestingSetup setup{
          CBaseChainParams::REGTEST,
          {
              "-nodebuglogfile",
          },
      };
      g_setup = &setup;
  
      for (int i = 0; i < 2 * COINBASE_MATURITY; i++) {
          MineBlock(g_setup->m_node, CScript() << OP_TRUE);
      }
      SyncWithValidationInterfaceQueue();
  }
  
  void fuzz_target(const std::vector<uint8_t>& buffer, const std::string& LIMIT_TO_MESSAGE_TYPE)
  {
      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
      ConnmanTestMsg& connman = *(ConnmanTestMsg*)g_setup->m_node.connman.get();
      TestChainState& chainstate = *(TestChainState*)&g_setup->m_node.chainman->ActiveChainstate();
      chainstate.ResetIbd();
      const std::string random_message_type{fuzzed_data_provider.ConsumeBytesAsString(CMessageHeader::COMMAND_SIZE).c_str()};
      if (!LIMIT_TO_MESSAGE_TYPE.empty() && random_message_type != LIMIT_TO_MESSAGE_TYPE) {
          return;
      }
      const bool jump_out_of_ibd{fuzzed_data_provider.ConsumeBool()};
      if (jump_out_of_ibd) chainstate.JumpOutOfIbd();
      CDataStream random_bytes_data_stream{fuzzed_data_provider.ConsumeRemainingBytes<unsigned char>(), SER_NETWORK, PROTOCOL_VERSION};
      CNode& p2p_node = *MakeUnique<CNode>(0, ServiceFlags(NODE_NETWORK | NODE_WITNESS | NODE_BLOOM), INVALID_SOCKET, CAddress{CService{in_addr{0x0100007f}, 7777}, NODE_NETWORK}, 0, 0, CAddress{}, std::string{}, ConnectionType::OUTBOUND_FULL_RELAY).release();
      p2p_node.fSuccessfullyConnected = true;
      p2p_node.nVersion = PROTOCOL_VERSION;
      p2p_node.SetCommonVersion(PROTOCOL_VERSION);
      connman.AddTestNode(p2p_node);
      g_setup->m_node.peerman->InitializeNode(&p2p_node);
      try {
          (void)ProcessMessage(&p2p_node, random_message_type, random_bytes_data_stream, GetTimeMillis(), Params(), *g_setup->m_node.mempool, g_setup->m_node.connman.get(), g_setup->m_node.banman.get(), std::atomic<bool>{false});
      } catch (const std::ios_base::failure&) {
      }
      SyncWithValidationInterfaceQueue();
      LOCK2(::cs_main, g_cs_orphans); // See init.cpp for rationale for implicit locking order requirement
      g_setup->m_node.connman->StopNodes();
  }
  
  FUZZ_TARGET_INIT(process_message, initialize_process_message) { fuzz_target(buffer, ""); }
  FUZZ_TARGET_INIT(process_message_addr, initialize_process_message) { fuzz_target(buffer, "addr"); }
  FUZZ_TARGET_INIT(process_message_block, initialize_process_message) { fuzz_target(buffer, "block"); }
  FUZZ_TARGET_INIT(process_message_blocktxn, initialize_process_message) { fuzz_target(buffer, "blocktxn"); }
  FUZZ_TARGET_INIT(process_message_cmpctblock, initialize_process_message) { fuzz_target(buffer, "cmpctblock"); }
  FUZZ_TARGET_INIT(process_message_feefilter, initialize_process_message) { fuzz_target(buffer, "feefilter"); }
  FUZZ_TARGET_INIT(process_message_filteradd, initialize_process_message) { fuzz_target(buffer, "filteradd"); }
  FUZZ_TARGET_INIT(process_message_filterclear, initialize_process_message) { fuzz_target(buffer, "filterclear"); }
  FUZZ_TARGET_INIT(process_message_filterload, initialize_process_message) { fuzz_target(buffer, "filterload"); }
  FUZZ_TARGET_INIT(process_message_getaddr, initialize_process_message) { fuzz_target(buffer, "getaddr"); }
  FUZZ_TARGET_INIT(process_message_getblocks, initialize_process_message) { fuzz_target(buffer, "getblocks"); }
  FUZZ_TARGET_INIT(process_message_getblocktxn, initialize_process_message) { fuzz_target(buffer, "getblocktxn"); }
  FUZZ_TARGET_INIT(process_message_getdata, initialize_process_message) { fuzz_target(buffer, "getdata"); }
  FUZZ_TARGET_INIT(process_message_getheaders, initialize_process_message) { fuzz_target(buffer, "getheaders"); }
  FUZZ_TARGET_INIT(process_message_headers, initialize_process_message) { fuzz_target(buffer, "headers"); }
  FUZZ_TARGET_INIT(process_message_inv, initialize_process_message) { fuzz_target(buffer, "inv"); }
  FUZZ_TARGET_INIT(process_message_mempool, initialize_process_message) { fuzz_target(buffer, "mempool"); }
  FUZZ_TARGET_INIT(process_message_notfound, initialize_process_message) { fuzz_target(buffer, "notfound"); }
  FUZZ_TARGET_INIT(process_message_ping, initialize_process_message) { fuzz_target(buffer, "ping"); }
  FUZZ_TARGET_INIT(process_message_pong, initialize_process_message) { fuzz_target(buffer, "pong"); }
  FUZZ_TARGET_INIT(process_message_sendcmpct, initialize_process_message) { fuzz_target(buffer, "sendcmpct"); }
  FUZZ_TARGET_INIT(process_message_sendheaders, initialize_process_message) { fuzz_target(buffer, "sendheaders"); }
  FUZZ_TARGET_INIT(process_message_tx, initialize_process_message) { fuzz_target(buffer, "tx"); }
  FUZZ_TARGET_INIT(process_message_verack, initialize_process_message) { fuzz_target(buffer, "verack"); }
  FUZZ_TARGET_INIT(process_message_version, initialize_process_message) { fuzz_target(buffer, "version"); }
  