From b0bf9eb77c777c42dcdb59f43609ad07117be8ad Mon Sep 17 00:00:00 2001
From: Pavel Vasin <pavel@vasin.nl>
Date: Tue, 14 Mar 2017 04:41:29 +0300
Subject: [PATCH] add rpc command burn

---
 src/rpcclient.cpp |  1 +
 src/rpcserver.cpp |  1 +
 src/rpcserver.h   |  1 +
 src/rpcwallet.cpp | 36 ++++++++++++++++++++++++++++++++++++
 4 files changed, 39 insertions(+)

diff --git a/src/rpcclient.cpp b/src/rpcclient.cpp
index 4d1384ee64da7..d60e73243dec9 100644
--- a/src/rpcclient.cpp
+++ b/src/rpcclient.cpp
@@ -106,6 +106,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "stop", 0 },
     { "getaddednodeinfo", 0 },
     { "sendtoaddress", 1 },
+    { "burn", 1 },
     { "settxfee", 0 },
     { "getreceivedbyaddress", 1 },
     { "getreceivedbyaccount", 1 },
diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index b630a1b25ec42..a5564b69c9e07 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -256,6 +256,7 @@ static const CRPCCommand vRPCCommands[] =
     { "getaccount",             &getaccount,             false,     false,     true },
     { "getaddressesbyaccount",  &getaddressesbyaccount,  true,      false,     true },
     { "sendtoaddress",          &sendtoaddress,          false,     false,     true },
+    { "burn",                   &burn,                   false,     false,     true },
     { "getreceivedbyaddress",   &getreceivedbyaddress,   false,     false,     true },
     { "getreceivedbyaccount",   &getreceivedbyaccount,   false,     false,     true },
     { "listreceivedbyaddress",  &listreceivedbyaddress,  false,     false,     true },
diff --git a/src/rpcserver.h b/src/rpcserver.h
index 5a9b0bddf3944..e7487ff1e31cd 100644
--- a/src/rpcserver.h
+++ b/src/rpcserver.h
@@ -126,6 +126,7 @@ extern json_spirit::Value setaccount(const json_spirit::Array& params, bool fHel
 extern json_spirit::Value getaccount(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getaddressesbyaccount(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value sendtoaddress(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value burn(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value signmessage(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value verifymessage(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getreceivedbyaddress(const json_spirit::Array& params, bool fHelp);
diff --git a/src/rpcwallet.cpp b/src/rpcwallet.cpp
index a5f1cc9067f68..4b986c12e1bde 100644
--- a/src/rpcwallet.cpp
+++ b/src/rpcwallet.cpp
@@ -291,6 +291,42 @@ Value sendtoaddress(const Array& params, bool fHelp)
     return wtx.GetHash().GetHex();
 }
 
+Value burn(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() < 1 || params.size() > 2)
+        throw runtime_error(
+            "burn <amount> [hex string]\n"
+            "<amount> is a real and is rounded to the nearest 0.00000001"
+            + HelpRequiringPassphrase());
+
+    CScript scriptPubKey;
+
+    if (params.size() > 1) {
+        vector<unsigned char> data;
+        if (params[1].get_str().size() > 0){
+            data = ParseHexV(params[1], "data");
+        } else {
+            // Empty data is valid
+        }
+        scriptPubKey = CScript() << OP_RETURN << data;
+    } else {
+        scriptPubKey = CScript() << OP_RETURN;
+    }
+
+    // Amount
+    int64_t nAmount = AmountFromValue(params[0]);
+
+    if (pwalletMain->IsLocked())
+        throw JSONRPCError(RPC_WALLET_UNLOCK_NEEDED, "Error: Please enter the wallet passphrase with walletpassphrase first.");
+
+    CWalletTx wtx;
+    string strError = pwalletMain->SendMoney(scriptPubKey, nAmount, wtx);
+    if (strError != "")
+        throw JSONRPCError(RPC_WALLET_ERROR, strError);
+
+    return wtx.GetHash().GetHex();
+}
+
 Value listaddressgroupings(const Array& params, bool fHelp)
 {
     if (fHelp)