diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp index 2428ef04e22..fa54197e755 100644 --- a/src/wallet/rpcwallet.cpp +++ b/src/wallet/rpcwallet.cpp @@ -2496,6 +2496,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request) " \"changePosition\" (numeric, optional, default random) The index of the change output\n" " \"includeWatching\" (boolean, optional, default false) Also select inputs which are watch only\n" " \"lockUnspents\" (boolean, optional, default false) Lock selected unspent outputs\n" + " \"reserveChangeKey\" (boolean, optional, default true) Reserves the change output key from the keypool\n" " \"feeRate\" (numeric, optional, default not set: makes wallet determine the fee) Set a specific feerate (" + CURRENCY_UNIT + " per KB)\n" " \"subtractFeeFromOutputs\" (array, optional) A json array of integers.\n" " The fee will be equally deducted from the amount of each specified output.\n" @@ -2528,6 +2529,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request) int changePosition = -1; bool includeWatching = false; bool lockUnspents = false; + bool reserveChangeKey = true; CFeeRate feeRate = CFeeRate(0); bool overrideEstimatedFeerate = false; UniValue subtractFeeFromOutputs; @@ -2549,6 +2551,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request) {"changePosition", UniValueType(UniValue::VNUM)}, {"includeWatching", UniValueType(UniValue::VBOOL)}, {"lockUnspents", UniValueType(UniValue::VBOOL)}, + {"reserveChangeKey", UniValueType(UniValue::VBOOL)}, {"feeRate", UniValueType()}, // will be checked below {"subtractFeeFromOutputs", UniValueType(UniValue::VARR)}, }, @@ -2572,6 +2575,9 @@ UniValue fundrawtransaction(const JSONRPCRequest& request) if (options.exists("lockUnspents")) lockUnspents = options["lockUnspents"].get_bool(); + if (options.exists("reserveChangeKey")) + reserveChangeKey = options["reserveChangeKey"].get_bool(); + if (options.exists("feeRate")) { feeRate = CFeeRate(AmountFromValue(options["feeRate"])); @@ -2608,7 +2614,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request) CAmount nFeeOut; string strFailReason; - if(!pwalletMain->FundTransaction(tx, nFeeOut, overrideEstimatedFeerate, feeRate, changePosition, strFailReason, includeWatching, lockUnspents, setSubtractFeeFromOutputs, changeAddress)) + if(!pwalletMain->FundTransaction(tx, nFeeOut, overrideEstimatedFeerate, feeRate, changePosition, strFailReason, includeWatching, lockUnspents, setSubtractFeeFromOutputs, reserveChangeKey, changeAddress)) throw JSONRPCError(RPC_INTERNAL_ERROR, strFailReason); UniValue result(UniValue::VOBJ); diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 0b18be87649..06382af1847 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -2192,7 +2192,7 @@ bool CWallet::SelectCoins(const vector& vAvailableCoins, const CAmount& return res; } -bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, const CFeeRate& specificFeeRate, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const std::set& setSubtractFeeFromOutputs, const CTxDestination& destChange) +bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, const CFeeRate& specificFeeRate, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const std::set& setSubtractFeeFromOutputs, bool keepReserveKey, const CTxDestination& destChange) { vector vecSend; @@ -2241,6 +2241,10 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool ov } } + // optionally keep the change output key + if (keepReserveKey) + reservekey.KeepKey(); + return true; } diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h index 92ad0984865..fb20062b965 100644 --- a/src/wallet/wallet.h +++ b/src/wallet/wallet.h @@ -780,7 +780,7 @@ public: * Insert additional inputs into the transaction by * calling CreateTransaction(); */ - bool FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, const CFeeRate& specificFeeRate, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const std::set& setSubtractFeeFromOutputs, const CTxDestination& destChange = CNoDestination()); + bool FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, const CFeeRate& specificFeeRate, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const std::set& setSubtractFeeFromOutputs, bool keepReserveKey = true, const CTxDestination& destChange = CNoDestination()); /** * Create a new transaction paying the recipients with a set of coins