diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp index c70d54bbd..79953acca 100644 --- a/src/bitcoin-tx.cpp +++ b/src/bitcoin-tx.cpp @@ -1,893 +1,886 @@ // Copyright (c) 2009-2016 The Bitcoin 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/bitcoin-config.h" #endif #include "base58.h" #include "chainparams.h" #include "clientversion.h" #include "coins.h" #include "consensus/consensus.h" #include "core_io.h" #include "dstencode.h" #include "keystore.h" #include "policy/policy.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 #include static bool fCreateBlank; static std::map 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(gArgs.GetChainName()); } catch (const std::exception &e) { fprintf(stderr, "Error: %s\n", e.what()); return EXIT_FAILURE; } fCreateBlank = gArgs.GetBoolArg("-create", false); if (argc < 2 || HelpRequested(gArgs)) { // First part of help message is specific to this utility std::string strUsage = strprintf(_("%s bitcoin-tx utility version"), _(PACKAGE_NAME)) + " " + FormatFullVersion() + "\n\n" + _("Usage:") + "\n" + " bitcoin-tx [options] [commands] " + _("Update hex-encoded bitcoin transaction") + "\n" + " bitcoin-tx [options] -create [commands] " + _("Create hex-encoded bitcoin 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("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 \"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 \"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 \"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 Amount ExtractAndValidateValue(const std::string &strValue) { Amount 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 MutateTxAddInput(CMutableTransaction &tx, const std::string &strInput) { std::vector 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"); } TxId txid(uint256S(strTxid)); static const unsigned int minTxOutSz = 9; static const unsigned int maxVout = MAX_TX_SIZE / 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::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, const CChainParams &chainParams) { // Separate into VALUE:ADDRESS std::vector 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 Amount value = ExtractAndValidateValue(vStrInputParts[0]); // extract and validate ADDRESS std::string strAddr = vStrInputParts[1]; CTxDestination destination = DecodeDestination(strAddr, chainParams); if (!IsValidDestination(destination)) { throw std::runtime_error("invalid TX output address"); } CScript scriptPubKey = GetScriptForDestination(destination); // 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 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 Amount 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 bScriptHash = false; if (vStrInputParts.size() == 3) { std::string flags = vStrInputParts[2]; bScriptHash = (flags.find("S") != std::string::npos); } if (bScriptHash) { // Get the ID for the script, and then construct a P2SH destination for // it. scriptPubKey = GetScriptForDestination(CScriptID(scriptPubKey)); } // 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 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 Amount 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 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 bScriptHash = false; if (vStrInputParts.size() == numkeys + 4) { std::string flags = vStrInputParts.back(); 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 (bScriptHash) { // Get the ID for the script, and then construct a P2SH destination for // it. scriptPubKey = GetScriptForDestination(CScriptID(scriptPubKey)); } // 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) { Amount value = Amount::zero(); // 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 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 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 Amount value = ExtractAndValidateValue(vStrInputParts[0]); // extract and validate script std::string strScript = vStrInputParts[1]; CScript scriptPubKey = ParseScript(strScript); // Extract FLAGS bool bScriptHash = false; if (vStrInputParts.size() == 3) { std::string flags = vStrInputParts.back(); bScriptHash = (flags.find("S") != std::string::npos); } if (bScriptHash) { scriptPubKey = GetScriptForDestination(CScriptID(scriptPubKey)); } // 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 = 12; 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}, {"ALL|FORKID", SIGHASH_ALL | SIGHASH_FORKID}, {"NONE|FORKID", SIGHASH_NONE | SIGHASH_FORKID}, {"SINGLE|FORKID", SIGHASH_SINGLE | SIGHASH_FORKID}, {"ALL|FORKID|ANYONECANPAY", SIGHASH_ALL | SIGHASH_FORKID | SIGHASH_ANYONECANPAY}, {"NONE|FORKID|ANYONECANPAY", SIGHASH_NONE | SIGHASH_FORKID | SIGHASH_ANYONECANPAY}, {"SINGLE|FORKID|ANYONECANPAY", SIGHASH_SINGLE | SIGHASH_FORKID | SIGHASH_ANYONECANPAY}, }; static bool findSigHashFlags(SigHashType &sigHashType, const std::string &flagStr) { sigHashType = SigHashType(); for (unsigned int i = 0; i < N_SIGHASH_OPTS; i++) { if (flagStr == sigHashOptions[i].flagStr) { sigHashType = SigHashType(sigHashOptions[i].flags); return true; } } return false; } static Amount AmountFromValue(const UniValue &value) { if (!value.isNum() && !value.isStr()) { throw std::runtime_error("Amount is not a number or string"); } int64_t n; if (!ParseFixedPoint(value.getValStr(), 8, &n)) { throw std::runtime_error("Invalid amount"); } Amount amount = n * SATOSHI; if (!MoneyRange(amount)) { throw std::runtime_error("Amount out of range"); } return amount; } static void MutateTxSign(CMutableTransaction &tx, const std::string &flagStr) { SigHashType sigHashType = SigHashType().withForkId(); if ((flagStr.size() > 0) && !findSigHashFlags(sigHashType, flagStr)) { throw std::runtime_error("unknown sighash flag/sign option"); } std::vector txVariants; txVariants.push_back(CTransaction(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"); } CBitcoinSecret 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 types = { {"txid", UniValue::VSTR}, {"vout", UniValue::VNUM}, {"scriptPubKey", UniValue::VSTR}}; if (!prevOut.checkObject(types)) { throw std::runtime_error("prevtxs internal object typecheck fail"); } TxId 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 pkData( ParseHexUV(prevOut["scriptPubKey"], "scriptPubKey")); CScript scriptPubKey(pkData.begin(), pkData.end()); { const Coin &coin = view.AccessCoin(out); if (!coin.IsSpent() && coin.GetTxOut().scriptPubKey != scriptPubKey) { std::string err("Previous output scriptPubKey mismatch:\n"); err = err + ScriptToAsmStr(coin.GetTxOut().scriptPubKey) + "\nvs:\n" + ScriptToAsmStr(scriptPubKey); throw std::runtime_error(err); } CTxOut txout; txout.scriptPubKey = scriptPubKey; txout.nValue = Amount::zero(); if (prevOut.exists("amount")) { txout.nValue = AmountFromValue(prevOut["amount"]); } view.AddCoin(out, Coin(txout, 1, false), true); } // If redeemScript given and private keys given, add redeemScript to the // tempKeystore so it can be signed: if (scriptPubKey.IsPayToScriptHash() && prevOut.exists("redeemScript")) { UniValue v = prevOut["redeemScript"]; std::vector rsData(ParseHexUV(v, "redeemScript")); CScript redeemScript(rsData.begin(), rsData.end()); tempKeystore.AddCScript(redeemScript); } } const CKeyStore &keystore = tempKeystore; // Sign what we can: for (size_t 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.GetTxOut().scriptPubKey; const Amount amount = coin.GetTxOut().nValue; SignatureData sigdata; // Only sign SIGHASH_SINGLE if there's a corresponding output: if ((sigHashType.getBaseType() != BaseSigHashType::SINGLE) || (i < mergedTx.vout.size())) { ProduceSignature(MutableTransactionSignatureCreator( &keystore, &mergedTx, i, amount, sigHashType), 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, 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, const CChainParams &chainParams) { std::unique_ptr ecc; if (command == "nversion") { MutateTxVersion(tx, commandVal); } else if (command == "locktime") { MutateTxLocktime(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, chainParams); } else if (command == "outpubkey") { - if (!ecc) { - ecc.reset(new Secp256k1Init()); - } + ecc.reset(new Secp256k1Init()); MutateTxAddOutPubKey(tx, commandVal); } else if (command == "outmultisig") { - if (!ecc) { - ecc.reset(new Secp256k1Init()); - } + 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()); - } - + 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) { // the hex-encoded transaction id. std::string strHexHash = tx.GetId().GetHex(); 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[], const CChainParams &chainParams) { 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 bitcoin transaction std::string strHexTx(argv[1]); // "-" implies standard input if (strHexTx == "-") { strHexTx = readStdin(); } if (!DecodeHexTx(tx, strHexTx)) { 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, chainParams); } OutputTx(CTransaction(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, Params()); } catch (const std::exception &e) { PrintExceptionContinue(&e, "CommandLineRawTx()"); } catch (...) { PrintExceptionContinue(nullptr, "CommandLineRawTx()"); } return ret; }