text: // Copyright (c) 2009-2016 The Youngseokcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #if defined(HAVE_CONFIG_H)
  #include "config/youngseokcoin-config.h"
  #endif
  
  #include "base58.h"
  #include "clientversion.h"
  #include "coins.h"
  #include "consensus/consensus.h"
  #include "core_io.h"
  #include "keystore.h"
  #include "policy/policy.h"
  #include "policy/rbf.h"
  #include "primitives/transaction.h"
  #include "script/script.h"
  #include "script/sign.h"
  #include <univalue.h>
  #include "util.h"
  #include "utilmoneystr.h"
  #include "utilstrencodings.h"
  
  #include <stdio.h>
  
  #include <boost/algorithm/string.hpp>
  
  static bool fCreateBlank;
  static std::map<std::string,UniValue> registers;
  static const int CONTINUE_EXECUTION=-1;
  
  //
  // This function returns either one of EXIT_ codes when it's expected to stop the process or
  // CONTINUE_EXECUTION when it's expected to continue further.
  //
  static int AppInitRawTx(int argc, char* argv[])
  {
      //
      // Parameters
      //
      gArgs.ParseParameters(argc, argv);
  
      // Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)
      try {
          SelectParams(ChainNameFromCommandLine());
      } catch (const std::exception& e) {
          fprintf(stderr, "Error: %s\n", e.what());
          return EXIT_FAILURE;
      }
  
      fCreateBlank = gArgs.GetBoolArg("-create", false);
  
      if (argc<2 || gArgs.IsArgSet("-?") || gArgs.IsArgSet("-h") || gArgs.IsArgSet("-help"))
      {
          // First part of help message is specific to this utility
          std::string strUsage = strprintf(_("%s youngseokcoin-tx utility version"), _(PACKAGE_NAME)) + " " + FormatFullVersion() + "\n\n" +
              _("Usage:") + "\n" +
                "  youngseokcoin-tx [options] <hex-tx> [commands]  " + _("Update hex-encoded youngseokcoin transaction") + "\n" +
                "  youngseokcoin-tx [options] -create [commands]   " + _("Create hex-encoded youngseokcoin transaction") + "\n" +
                "\n";
  
          fprintf(stdout, "%s", strUsage.c_str());
  
          strUsage = HelpMessageGroup(_("Options:"));
          strUsage += HelpMessageOpt("-?", _("This help message"));
          strUsage += HelpMessageOpt("-create", _("Create new, empty TX."));
          strUsage += HelpMessageOpt("-json", _("Select JSON output"));
          strUsage += HelpMessageOpt("-txid", _("Output only the hex-encoded transaction id of the resultant transaction."));
          AppendParamsHelpMessages(strUsage);
  
          fprintf(stdout, "%s", strUsage.c_str());
  
          strUsage = HelpMessageGroup(_("Commands:"));
          strUsage += HelpMessageOpt("delin=N", _("Delete input N from TX"));
          strUsage += HelpMessageOpt("delout=N", _("Delete output N from TX"));
          strUsage += HelpMessageOpt("in=TXID:VOUT(:SEQUENCE_NUMBER)", _("Add input to TX"));
          strUsage += HelpMessageOpt("locktime=N", _("Set TX lock time to N"));
          strUsage += HelpMessageOpt("nversion=N", _("Set TX version to N"));
          strUsage += HelpMessageOpt("replaceable(=N)", _("Set RBF opt-in sequence number for input N (if not provided, opt-in all available inputs)"));
          strUsage += HelpMessageOpt("outaddr=VALUE:ADDRESS", _("Add address-based output to TX"));
          strUsage += HelpMessageOpt("outpubkey=VALUE:PUBKEY[:FLAGS]", _("Add pay-to-pubkey output to TX") + ". " +
              _("Optionally add the \"W\" flag to produce a pay-to-witness-pubkey-hash output") + ". " +
              _("Optionally add the \"S\" flag to wrap the output in a pay-to-script-hash."));
          strUsage += HelpMessageOpt("outdata=[VALUE:]DATA", _("Add data-based output to TX"));
          strUsage += HelpMessageOpt("outscript=VALUE:SCRIPT[:FLAGS]", _("Add raw script output to TX") + ". " +
              _("Optionally add the \"W\" flag to produce a pay-to-witness-script-hash output") + ". " +
              _("Optionally add the \"S\" flag to wrap the output in a pay-to-script-hash."));
          strUsage += HelpMessageOpt("outmultisig=VALUE:REQUIRED:PUBKEYS:PUBKEY1:PUBKEY2:....[:FLAGS]", _("Add Pay To n-of-m Multi-sig output to TX. n = REQUIRED, m = PUBKEYS") + ". " +
              _("Optionally add the \"W\" flag to produce a pay-to-witness-script-hash output") + ". " +
              _("Optionally add the \"S\" flag to wrap the output in a pay-to-script-hash."));
          strUsage += HelpMessageOpt("sign=SIGHASH-FLAGS", _("Add zero or more signatures to transaction") + ". " +
              _("This command requires JSON registers:") +
              _("prevtxs=JSON object") + ", " +
              _("privatekeys=JSON object") + ". " +
              _("See signrawtransaction docs for format of sighash flags, JSON objects."));
          fprintf(stdout, "%s", strUsage.c_str());
  
          strUsage = HelpMessageGroup(_("Register Commands:"));
          strUsage += HelpMessageOpt("load=NAME:FILENAME", _("Load JSON file FILENAME into register NAME"));
          strUsage += HelpMessageOpt("set=NAME:JSON-STRING", _("Set register NAME to given JSON-STRING"));
          fprintf(stdout, "%s", strUsage.c_str());
  
          if (argc < 2) {
              fprintf(stderr, "Error: too few parameters\n");
              return EXIT_FAILURE;
          }
          return EXIT_SUCCESS;
      }
      return CONTINUE_EXECUTION;
  }
  
  static void RegisterSetJson(const std::string& key, const std::string& rawJson)
  {
      UniValue val;
      if (!val.read(rawJson)) {
          std::string strErr = "Cannot parse JSON for key " + key;
          throw std::runtime_error(strErr);
      }
  
      registers[key] = val;
  }
  
  static void RegisterSet(const std::string& strInput)
  {
      // separate NAME:VALUE in string
      size_t pos = strInput.find(':');
      if ((pos == std::string::npos) ||
          (pos == 0) ||
          (pos == (strInput.size() - 1)))
          throw std::runtime_error("Register input requires NAME:VALUE");
  
      std::string key = strInput.substr(0, pos);
      std::string valStr = strInput.substr(pos + 1, std::string::npos);
  
      RegisterSetJson(key, valStr);
  }
  
  static void RegisterLoad(const std::string& strInput)
  {
      // separate NAME:FILENAME in string
      size_t pos = strInput.find(':');
      if ((pos == std::string::npos) ||
          (pos == 0) ||
          (pos == (strInput.size() - 1)))
          throw std::runtime_error("Register load requires NAME:FILENAME");
  
      std::string key = strInput.substr(0, pos);
      std::string filename = strInput.substr(pos + 1, std::string::npos);
  
      FILE *f = fopen(filename.c_str(), "r");
      if (!f) {
          std::string strErr = "Cannot open file " + filename;
          throw std::runtime_error(strErr);
      }
  
      // load file chunks into one big buffer
      std::string valStr;
      while ((!feof(f)) && (!ferror(f))) {
          char buf[4096];
          int bread = fread(buf, 1, sizeof(buf), f);
          if (bread <= 0)
              break;
  
          valStr.insert(valStr.size(), buf, bread);
      }
  
      int error = ferror(f);
      fclose(f);
  
      if (error) {
          std::string strErr = "Error reading file " + filename;
          throw std::runtime_error(strErr);
      }
  
      // evaluate as JSON buffer register
      RegisterSetJson(key, valStr);
  }
  
  static CAmount ExtractAndValidateValue(const std::string& strValue)
  {
      CAmount value;
      if (!ParseMoney(strValue, value))
          throw std::runtime_error("invalid TX output value");
      return value;
  }
  
  static void MutateTxVersion(CMutableTransaction& tx, const std::string& cmdVal)
  {
      int64_t newVersion = atoi64(cmdVal);
      if (newVersion < 1 || newVersion > CTransaction::MAX_STANDARD_VERSION)
          throw std::runtime_error("Invalid TX version requested");
  
      tx.nVersion = (int) newVersion;
  }
  
  static void MutateTxLocktime(CMutableTransaction& tx, const std::string& cmdVal)
  {
      int64_t newLocktime = atoi64(cmdVal);
      if (newLocktime < 0LL || newLocktime > 0xffffffffLL)
          throw std::runtime_error("Invalid TX locktime requested");
  
      tx.nLockTime = (unsigned int) newLocktime;
  }
  
  static void MutateTxRBFOptIn(CMutableTransaction& tx, const std::string& strInIdx)
  {
      // parse requested index
      int inIdx = atoi(strInIdx);
      if (inIdx < 0 || inIdx >= (int)tx.vin.size()) {
          throw std::runtime_error("Invalid TX input index '" + strInIdx + "'");
      }
  
      // set the nSequence to MAX_INT - 2 (= RBF opt in flag)
      int cnt = 0;
      for (CTxIn& txin : tx.vin) {
          if (strInIdx == "" || cnt == inIdx) {
              if (txin.nSequence > MAX_BIP125_RBF_SEQUENCE) {
                  txin.nSequence = MAX_BIP125_RBF_SEQUENCE;
              }
          }
          ++cnt;
      }
  }
  
  static void MutateTxAddInput(CMutableTransaction& tx, const std::string& strInput)
  {
      std::vector<std::string> vStrInputParts;
      boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
  
      // separate TXID:VOUT in string
      if (vStrInputParts.size()<2)
          throw std::runtime_error("TX input missing separator");
  
      // extract and validate TXID
      std::string strTxid = vStrInputParts[0];
      if ((strTxid.size() != 64) || !IsHex(strTxid))
          throw std::runtime_error("invalid TX input txid");
      uint256 txid(uint256S(strTxid));
  
      static const unsigned int minTxOutSz = 9;
      static const unsigned int maxVout = MAX_BLOCK_WEIGHT / (WITNESS_SCALE_FACTOR * minTxOutSz);
  
      // extract and validate vout
      std::string strVout = vStrInputParts[1];
      int vout = atoi(strVout);
      if ((vout < 0) || (vout > (int)maxVout))
          throw std::runtime_error("invalid TX input vout");
  
      // extract the optional sequence number
      uint32_t nSequenceIn=std::numeric_limits<unsigned int>::max();
      if (vStrInputParts.size() > 2)
          nSequenceIn = std::stoul(vStrInputParts[2]);
  
      // append to transaction input list
      CTxIn txin(txid, vout, CScript(), nSequenceIn);
      tx.vin.push_back(txin);
  }
  
  static void MutateTxAddOutAddr(CMutableTransaction& tx, const std::string& strInput)
  {
      // Separate into VALUE:ADDRESS
      std::vector<std::string> vStrInputParts;
      boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
  
      if (vStrInputParts.size() != 2)
          throw std::runtime_error("TX output missing or too many separators");
  
      // Extract and validate VALUE
      CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
  
      // extract and validate ADDRESS
      std::string strAddr = vStrInputParts[1];
      CYoungseokcoinAddress addr(strAddr);
      if (!addr.IsValid())
          throw std::runtime_error("invalid TX output address");
      // build standard output script via GetScriptForDestination()
      CScript scriptPubKey = GetScriptForDestination(addr.Get());
  
      // construct TxOut, append to transaction output list
      CTxOut txout(value, scriptPubKey);
      tx.vout.push_back(txout);
  }
  
  static void MutateTxAddOutPubKey(CMutableTransaction& tx, const std::string& strInput)
  {
      // Separate into VALUE:PUBKEY[:FLAGS]
      std::vector<std::string> vStrInputParts;
      boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
  
      if (vStrInputParts.size() < 2 || vStrInputParts.size() > 3)
          throw std::runtime_error("TX output missing or too many separators");
  
      // Extract and validate VALUE
      CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
  
      // Extract and validate PUBKEY
      CPubKey pubkey(ParseHex(vStrInputParts[1]));
      if (!pubkey.IsFullyValid())
          throw std::runtime_error("invalid TX output pubkey");
      CScript scriptPubKey = GetScriptForRawPubKey(pubkey);
  
      // Extract and validate FLAGS
      bool bSegWit = false;
      bool bScriptHash = false;
      if (vStrInputParts.size() == 3) {
          std::string flags = vStrInputParts[2];
          bSegWit = (flags.find("W") != std::string::npos);
          bScriptHash = (flags.find("S") != std::string::npos);
      }
  
      if (bSegWit) {
          if (!pubkey.IsCompressed()) {
              throw std::runtime_error("Uncompressed pubkeys are not useable for SegWit outputs");
          }
          // Call GetScriptForWitness() to build a P2WSH scriptPubKey
          scriptPubKey = GetScriptForWitness(scriptPubKey);
      }
      if (bScriptHash) {
          // Get the address for the redeem script, then call
          // GetScriptForDestination() to construct a P2SH scriptPubKey.
          CYoungseokcoinAddress redeemScriptAddr(scriptPubKey);
          scriptPubKey = GetScriptForDestination(redeemScriptAddr.Get());
      }
  
      // construct TxOut, append to transaction output list
      CTxOut txout(value, scriptPubKey);
      tx.vout.push_back(txout);
  }
  
  static void MutateTxAddOutMultiSig(CMutableTransaction& tx, const std::string& strInput)
  {
      // Separate into VALUE:REQUIRED:NUMKEYS:PUBKEY1:PUBKEY2:....[:FLAGS]
      std::vector<std::string> vStrInputParts;
      boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
  
      // Check that there are enough parameters
      if (vStrInputParts.size()<3)
          throw std::runtime_error("Not enough multisig parameters");
  
      // Extract and validate VALUE
      CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
  
      // Extract REQUIRED
      uint32_t required = stoul(vStrInputParts[1]);
  
      // Extract NUMKEYS
      uint32_t numkeys = stoul(vStrInputParts[2]);
  
      // Validate there are the correct number of pubkeys
      if (vStrInputParts.size() < numkeys + 3)
          throw std::runtime_error("incorrect number of multisig pubkeys");
  
      if (required < 1 || required > 20 || numkeys < 1 || numkeys > 20 || numkeys < required)
          throw std::runtime_error("multisig parameter mismatch. Required " \
                              + std::to_string(required) + " of " + std::to_string(numkeys) + "signatures.");
  
      // extract and validate PUBKEYs
      std::vector<CPubKey> pubkeys;
      for(int pos = 1; pos <= int(numkeys); pos++) {
          CPubKey pubkey(ParseHex(vStrInputParts[pos + 2]));
          if (!pubkey.IsFullyValid())
              throw std::runtime_error("invalid TX output pubkey");
          pubkeys.push_back(pubkey);
      }
  
      // Extract FLAGS
      bool bSegWit = false;
      bool bScriptHash = false;
      if (vStrInputParts.size() == numkeys + 4) {
          std::string flags = vStrInputParts.back();
          bSegWit = (flags.find("W") != std::string::npos);
          bScriptHash = (flags.find("S") != std::string::npos);
      }
      else if (vStrInputParts.size() > numkeys + 4) {
          // Validate that there were no more parameters passed
          throw std::runtime_error("Too many parameters");
      }
  
      CScript scriptPubKey = GetScriptForMultisig(required, pubkeys);
  
      if (bSegWit) {
          for (CPubKey& pubkey : pubkeys) {
              if (!pubkey.IsCompressed()) {
                  throw std::runtime_error("Uncompressed pubkeys are not useable for SegWit outputs");
              }
          }
          // Call GetScriptForWitness() to build a P2WSH scriptPubKey
          scriptPubKey = GetScriptForWitness(scriptPubKey);
      }
      if (bScriptHash) {
          if (scriptPubKey.size() > MAX_SCRIPT_ELEMENT_SIZE) {
              throw std::runtime_error(strprintf(
                          "redeemScript exceeds size limit: %d > %d", scriptPubKey.size(), MAX_SCRIPT_ELEMENT_SIZE));
          }
          // Get the address for the redeem script, then call
          // GetScriptForDestination() to construct a P2SH scriptPubKey.
          CYoungseokcoinAddress addr(scriptPubKey);
          scriptPubKey = GetScriptForDestination(addr.Get());
      }
  
      // construct TxOut, append to transaction output list
      CTxOut txout(value, scriptPubKey);
      tx.vout.push_back(txout);
  }
  
  static void MutateTxAddOutData(CMutableTransaction& tx, const std::string& strInput)
  {
      CAmount value = 0;
  
      // separate [VALUE:]DATA in string
      size_t pos = strInput.find(':');
  
      if (pos==0)
          throw std::runtime_error("TX output value not specified");
  
      if (pos != std::string::npos) {
          // Extract and validate VALUE
          value = ExtractAndValidateValue(strInput.substr(0, pos));
      }
  
      // extract and validate DATA
      std::string strData = strInput.substr(pos + 1, std::string::npos);
  
      if (!IsHex(strData))
          throw std::runtime_error("invalid TX output data");
  
      std::vector<unsigned char> data = ParseHex(strData);
  
      CTxOut txout(value, CScript() << OP_RETURN << data);
      tx.vout.push_back(txout);
  }
  
  static void MutateTxAddOutScript(CMutableTransaction& tx, const std::string& strInput)
  {
      // separate VALUE:SCRIPT[:FLAGS]
      std::vector<std::string> vStrInputParts;
      boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
      if (vStrInputParts.size() < 2)
          throw std::runtime_error("TX output missing separator");
  
      // Extract and validate VALUE
      CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
  
      // extract and validate script
      std::string strScript = vStrInputParts[1];
      CScript scriptPubKey = ParseScript(strScript);
  
      // Extract FLAGS
      bool bSegWit = false;
      bool bScriptHash = false;
      if (vStrInputParts.size() == 3) {
          std::string flags = vStrInputParts.back();
          bSegWit = (flags.find("W") != std::string::npos);
          bScriptHash = (flags.find("S") != std::string::npos);
      }
  
      if (scriptPubKey.size() > MAX_SCRIPT_SIZE) {
          throw std::runtime_error(strprintf(
                      "script exceeds size limit: %d > %d", scriptPubKey.size(), MAX_SCRIPT_SIZE));
      }
  
      if (bSegWit) {
        scriptPubKey = GetScriptForWitness(scriptPubKey);
      }
      if (bScriptHash) {
          if (scriptPubKey.size() > MAX_SCRIPT_ELEMENT_SIZE) {
              throw std::runtime_error(strprintf(
                          "redeemScript exceeds size limit: %d > %d", scriptPubKey.size(), MAX_SCRIPT_ELEMENT_SIZE));
          }
        CYoungseokcoinAddress addr(scriptPubKey);
        scriptPubKey = GetScriptForDestination(addr.Get());
      }
  
      // construct TxOut, append to transaction output list
      CTxOut txout(value, scriptPubKey);
      tx.vout.push_back(txout);
  }
  
  static void MutateTxDelInput(CMutableTransaction& tx, const std::string& strInIdx)
  {
      // parse requested deletion index
      int inIdx = atoi(strInIdx);
      if (inIdx < 0 || inIdx >= (int)tx.vin.size()) {
          std::string strErr = "Invalid TX input index '" + strInIdx + "'";
          throw std::runtime_error(strErr.c_str());
      }
  
      // delete input from transaction
      tx.vin.erase(tx.vin.begin() + inIdx);
  }
  
  static void MutateTxDelOutput(CMutableTransaction& tx, const std::string& strOutIdx)
  {
      // parse requested deletion index
      int outIdx = atoi(strOutIdx);
      if (outIdx < 0 || outIdx >= (int)tx.vout.size()) {
          std::string strErr = "Invalid TX output index '" + strOutIdx + "'";
          throw std::runtime_error(strErr.c_str());
      }
  
      // delete output from transaction
      tx.vout.erase(tx.vout.begin() + outIdx);
  }
  
  static const unsigned int N_SIGHASH_OPTS = 6;
  static const struct {
      const char *flagStr;
      int flags;
  } sighashOptions[N_SIGHASH_OPTS] = {
      {"ALL", SIGHASH_ALL},
      {"NONE", SIGHASH_NONE},
      {"SINGLE", SIGHASH_SINGLE},
      {"ALL|ANYONECANPAY", SIGHASH_ALL|SIGHASH_ANYONECANPAY},
      {"NONE|ANYONECANPAY", SIGHASH_NONE|SIGHASH_ANYONECANPAY},
      {"SINGLE|ANYONECANPAY", SIGHASH_SINGLE|SIGHASH_ANYONECANPAY},
  };
  
  static bool findSighashFlags(int& flags, const std::string& flagStr)
  {
      flags = 0;
  
      for (unsigned int i = 0; i < N_SIGHASH_OPTS; i++) {
          if (flagStr == sighashOptions[i].flagStr) {
              flags = sighashOptions[i].flags;
              return true;
          }
      }
  
      return false;
  }
  
  static CAmount AmountFromValue(const UniValue& value)
  {
      if (!value.isNum() && !value.isStr())
          throw std::runtime_error("Amount is not a number or string");
      CAmount amount;
      if (!ParseFixedPoint(value.getValStr(), 8, &amount))
          throw std::runtime_error("Invalid amount");
      if (!MoneyRange(amount))
          throw std::runtime_error("Amount out of range");
      return amount;
  }
  
  static void MutateTxSign(CMutableTransaction& tx, const std::string& flagStr)
  {
      int nHashType = SIGHASH_ALL;
  
      if (flagStr.size() > 0)
          if (!findSighashFlags(nHashType, flagStr))
              throw std::runtime_error("unknown sighash flag/sign option");
  
      std::vector<CTransaction> txVariants;
      txVariants.push_back(tx);
  
      // mergedTx will end up with all the signatures; it
      // starts as a clone of the raw tx:
      CMutableTransaction mergedTx(txVariants[0]);
      bool fComplete = true;
      CCoinsView viewDummy;
      CCoinsViewCache view(&viewDummy);
  
      if (!registers.count("privatekeys"))
          throw std::runtime_error("privatekeys register variable must be set.");
      CBasicKeyStore tempKeystore;
      UniValue keysObj = registers["privatekeys"];
  
      for (unsigned int kidx = 0; kidx < keysObj.size(); kidx++) {
          if (!keysObj[kidx].isStr())
              throw std::runtime_error("privatekey not a std::string");
          CYoungseokcoinSecret vchSecret;
          bool fGood = vchSecret.SetString(keysObj[kidx].getValStr());
          if (!fGood)
              throw std::runtime_error("privatekey not valid");
  
          CKey key = vchSecret.GetKey();
          tempKeystore.AddKey(key);
      }
  
      // Add previous txouts given in the RPC call:
      if (!registers.count("prevtxs"))
          throw std::runtime_error("prevtxs register variable must be set.");
      UniValue prevtxsObj = registers["prevtxs"];
      {
          for (unsigned int previdx = 0; previdx < prevtxsObj.size(); previdx++) {
              UniValue prevOut = prevtxsObj[previdx];
              if (!prevOut.isObject())
                  throw std::runtime_error("expected prevtxs internal object");
  
              std::map<std::string, UniValue::VType> types = {
                  {"txid", UniValue::VSTR},
                  {"vout", UniValue::VNUM},
                  {"scriptPubKey", UniValue::VSTR},
              };
              if (!prevOut.checkObject(types))
                  throw std::runtime_error("prevtxs internal object typecheck fail");
  
              uint256 txid = ParseHashUV(prevOut["txid"], "txid");
  
              int nOut = atoi(prevOut["vout"].getValStr());
              if (nOut < 0)
                  throw std::runtime_error("vout must be positive");
  
              COutPoint out(txid, nOut);
              std::vector<unsigned char> pkData(ParseHexUV(prevOut["scriptPubKey"], "scriptPubKey"));
              CScript scriptPubKey(pkData.begin(), pkData.end());
  
              {
                  const Coin& coin = view.AccessCoin(out);
                  if (!coin.IsSpent() && coin.out.scriptPubKey != scriptPubKey) {
                      std::string err("Previous output scriptPubKey mismatch:\n");
                      err = err + ScriptToAsmStr(coin.out.scriptPubKey) + "\nvs:\n"+
                          ScriptToAsmStr(scriptPubKey);
                      throw std::runtime_error(err);
                  }
                  Coin newcoin;
                  newcoin.out.scriptPubKey = scriptPubKey;
                  newcoin.out.nValue = 0;
                  if (prevOut.exists("amount")) {
                      newcoin.out.nValue = AmountFromValue(prevOut["amount"]);
                  }
                  newcoin.nHeight = 1;
                  view.AddCoin(out, std::move(newcoin), true);
              }
  
              // if redeemScript given and private keys given,
              // add redeemScript to the tempKeystore so it can be signed:
              if ((scriptPubKey.IsPayToScriptHash() || scriptPubKey.IsPayToWitnessScriptHash()) &&
                  prevOut.exists("redeemScript")) {
                  UniValue v = prevOut["redeemScript"];
                  std::vector<unsigned char> rsData(ParseHexUV(v, "redeemScript"));
                  CScript redeemScript(rsData.begin(), rsData.end());
                  tempKeystore.AddCScript(redeemScript);
              }
          }
      }
  
      const CKeyStore& keystore = tempKeystore;
  
      bool fHashSingle = ((nHashType & ~SIGHASH_ANYONECANPAY) == SIGHASH_SINGLE);
  
      // Sign what we can:
      for (unsigned int i = 0; i < mergedTx.vin.size(); i++) {
          CTxIn& txin = mergedTx.vin[i];
          const Coin& coin = view.AccessCoin(txin.prevout);
          if (coin.IsSpent()) {
              fComplete = false;
              continue;
          }
          const CScript& prevPubKey = coin.out.scriptPubKey;
          const CAmount& amount = coin.out.nValue;
  
          SignatureData sigdata;
          // Only sign SIGHASH_SINGLE if there's a corresponding output:
          if (!fHashSingle || (i < mergedTx.vout.size()))
              ProduceSignature(MutableTransactionSignatureCreator(&keystore, &mergedTx, i, amount, nHashType), prevPubKey, sigdata);
  
          // ... and merge in other signatures:
          for (const CTransaction& txv : txVariants)
              sigdata = CombineSignatures(prevPubKey, MutableTransactionSignatureChecker(&mergedTx, i, amount), sigdata, DataFromTransaction(txv, i));
          UpdateTransaction(mergedTx, i, sigdata);
  
          if (!VerifyScript(txin.scriptSig, prevPubKey, &txin.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&mergedTx, i, amount)))
              fComplete = false;
      }
  
      if (fComplete) {
          // do nothing... for now
          // perhaps store this for later optional JSON output
      }
  
      tx = mergedTx;
  }
  
  class Secp256k1Init
  {
      ECCVerifyHandle globalVerifyHandle;
  
  public:
      Secp256k1Init() {
          ECC_Start();
      }
      ~Secp256k1Init() {
          ECC_Stop();
      }
  };
  
  static void MutateTx(CMutableTransaction& tx, const std::string& command,
                       const std::string& commandVal)
  {
      std::unique_ptr<Secp256k1Init> ecc;
  
      if (command == "nversion")
          MutateTxVersion(tx, commandVal);
      else if (command == "locktime")
          MutateTxLocktime(tx, commandVal);
      else if (command == "replaceable") {
          MutateTxRBFOptIn(tx, commandVal);
      }
  
      else if (command == "delin")
          MutateTxDelInput(tx, commandVal);
      else if (command == "in")
          MutateTxAddInput(tx, commandVal);
  
      else if (command == "delout")
          MutateTxDelOutput(tx, commandVal);
      else if (command == "outaddr")
          MutateTxAddOutAddr(tx, commandVal);
      else if (command == "outpubkey") {
          if (!ecc) { ecc.reset(new Secp256k1Init()); }
          MutateTxAddOutPubKey(tx, commandVal);
      } else if (command == "outmultisig") {
          if (!ecc) { ecc.reset(new Secp256k1Init()); }
          MutateTxAddOutMultiSig(tx, commandVal);
      } else if (command == "outscript")
          MutateTxAddOutScript(tx, commandVal);
      else if (command == "outdata")
          MutateTxAddOutData(tx, commandVal);
  
      else if (command == "sign") {
          if (!ecc) { ecc.reset(new Secp256k1Init()); }
          MutateTxSign(tx, commandVal);
      }
  
      else if (command == "load")
          RegisterLoad(commandVal);
  
      else if (command == "set")
          RegisterSet(commandVal);
  
      else
          throw std::runtime_error("unknown command");
  }
  
  static void OutputTxJSON(const CTransaction& tx)
  {
      UniValue entry(UniValue::VOBJ);
      TxToUniv(tx, uint256(), entry);
  
      std::string jsonOutput = entry.write(4);
      fprintf(stdout, "%s\n", jsonOutput.c_str());
  }
  
  static void OutputTxHash(const CTransaction& tx)
  {
      std::string strHexHash = tx.GetHash().GetHex(); // the hex-encoded transaction hash (aka the transaction id)
  
      fprintf(stdout, "%s\n", strHexHash.c_str());
  }
  
  static void OutputTxHex(const CTransaction& tx)
  {
      std::string strHex = EncodeHexTx(tx);
  
      fprintf(stdout, "%s\n", strHex.c_str());
  }
  
  static void OutputTx(const CTransaction& tx)
  {
      if (gArgs.GetBoolArg("-json", false))
          OutputTxJSON(tx);
      else if (gArgs.GetBoolArg("-txid", false))
          OutputTxHash(tx);
      else
          OutputTxHex(tx);
  }
  
  static std::string readStdin()
  {
      char buf[4096];
      std::string ret;
  
      while (!feof(stdin)) {
          size_t bread = fread(buf, 1, sizeof(buf), stdin);
          ret.append(buf, bread);
          if (bread < sizeof(buf))
              break;
      }
  
      if (ferror(stdin))
          throw std::runtime_error("error reading stdin");
  
      boost::algorithm::trim_right(ret);
  
      return ret;
  }
  
  static int CommandLineRawTx(int argc, char* argv[])
  {
      std::string strPrint;
      int nRet = 0;
      try {
          // Skip switches; Permit common stdin convention "-"
          while (argc > 1 && IsSwitchChar(argv[1][0]) &&
                 (argv[1][1] != 0)) {
              argc--;
              argv++;
          }
  
          CMutableTransaction tx;
          int startArg;
  
          if (!fCreateBlank) {
              // require at least one param
              if (argc < 2)
                  throw std::runtime_error("too few parameters");
  
              // param: hex-encoded youngseokcoin transaction
              std::string strHexTx(argv[1]);
              if (strHexTx == "-")                 // "-" implies standard input
                  strHexTx = readStdin();
  
              if (!DecodeHexTx(tx, strHexTx, true))
                  throw std::runtime_error("invalid transaction encoding");
  
              startArg = 2;
          } else
              startArg = 1;
  
          for (int i = startArg; i < argc; i++) {
              std::string arg = argv[i];
              std::string key, value;
              size_t eqpos = arg.find('=');
              if (eqpos == std::string::npos)
                  key = arg;
              else {
                  key = arg.substr(0, eqpos);
                  value = arg.substr(eqpos + 1);
              }
  
              MutateTx(tx, key, value);
          }
  
          OutputTx(tx);
      }
  
      catch (const boost::thread_interrupted&) {
          throw;
      }
      catch (const std::exception& e) {
          strPrint = std::string("error: ") + e.what();
          nRet = EXIT_FAILURE;
      }
      catch (...) {
          PrintExceptionContinue(nullptr, "CommandLineRawTx()");
          throw;
      }
  
      if (strPrint != "") {
          fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str());
      }
      return nRet;
  }
  
  int main(int argc, char* argv[])
  {
      SetupEnvironment();
  
      try {
          int ret = AppInitRawTx(argc, argv);
          if (ret != CONTINUE_EXECUTION)
              return ret;
      }
      catch (const std::exception& e) {
          PrintExceptionContinue(&e, "AppInitRawTx()");
          return EXIT_FAILURE;
      } catch (...) {
          PrintExceptionContinue(nullptr, "AppInitRawTx()");
          return EXIT_FAILURE;
      }
  
      int ret = EXIT_FAILURE;
      try {
          ret = CommandLineRawTx(argc, argv);
      }
      catch (const std::exception& e) {
          PrintExceptionContinue(&e, "CommandLineRawTx()");
      } catch (...) {
          PrintExceptionContinue(nullptr, "CommandLineRawTx()");
      }
      return ret;
  }
  