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-rw-r--r--src/wallet/rpcwallet.cpp8
-rw-r--r--src/wallet/wallet.cpp6
-rw-r--r--src/wallet/wallet.h2
3 files changed, 13 insertions, 3 deletions
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 152e9cff90..55e7558498 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -2511,6 +2511,7 @@ 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"
@@ -2543,6 +2544,7 @@ 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;
@@ -2564,6 +2566,7 @@ 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)},
},
@@ -2587,6 +2590,9 @@ 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"]));
@@ -2623,7 +2629,7 @@ 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 6251998099..358a5ecfc1 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2282,7 +2282,7 @@ bool CWallet::SelectCoins(const vector<COutput>& 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<int>& 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<int>& setSubtractFeeFromOutputs, bool keepReserveKey, const CTxDestination& destChange)
{
vector<CRecipient> vecSend;
@@ -2331,6 +2331,10 @@ 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 ecc63a9a13..a7fc05b62d 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<int>& 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<int>& setSubtractFeeFromOutputs, bool keepReserveKey = true, const CTxDestination& destChange = CNoDestination());
/**
* Create a new transaction paying the recipients with a set of coins