[Wallet] print hd masterkeyid in getwalletinfo

Author: jonasschnelli

src/wallet/rpcwallet.cpp

@@ -2269,6 +2269,7 @@ UniValue getwalletinfo(const UniValue& params, bool fHelp)
             "  \"keypoolsize\": xxxx,        (numeric) how many new keys are pre-generated\n"
             "  \"unlocked_until\": ttt,      (numeric) the timestamp in seconds since epoch (midnight Jan 1 1970 GMT) that the wallet is unlocked for transfers, or 0 if the wallet is locked\n"
             "  \"paytxfee\": x.xxxx,         (numeric) the transaction fee configuration, set in " + CURRENCY_UNIT + "/kB\n"
+            "  \"masterkeyid\": \"<hash160>\", (string) the Hash160 of the hd master pubkey\n"
             "}\n"
             "\nExamples:\n"
             + HelpExampleCli("getwalletinfo", "")
@@ -2288,6 +2289,9 @@ UniValue getwalletinfo(const UniValue& params, bool fHelp)
     if (pwalletMain->IsCrypted())
         obj.push_back(Pair("unlocked_until", nWalletUnlockTime));
     obj.push_back(Pair("paytxfee",      ValueFromAmount(payTxFee.GetFeePerK())));
+    CKeyID masterKeyID = pwalletMain->GetHDChain().masterKeyID;
+    if (!masterKeyID.IsNull())
+         obj.push_back(Pair("masterkeyid",masterKeyID.GetHex()));
     return obj;
 }
 

src/wallet/wallet.h

@@ -901,6 +901,7 @@ class CWallet : public CCryptoKeyStore, public CValidationInterface
 
     /* Set the current hd master key (will reset the chain child index counters) */
     bool SetHDMasterKey(const CKey& key);
+    const CHDChain& GetHDChain() { return hdChain; }
 };
 
 /** A key allocated from the key pool. */