Implement a function to add KeyOriginInfo to a wallet

src/wallet/wallet.cpp

@@ -4550,3 +4550,13 @@ bool CWallet::GetKeyOrigin(const CKeyID& keyID, KeyOriginInfo& info) const
     }
     return true;
 }
+
+bool CWallet::AddKeyOrigin(const CPubKey& pubkey, const KeyOriginInfo& info)
+{
+    LOCK(cs_wallet);
+    std::copy(info.fingerprint, info.fingerprint + 4, mapKeyMetadata[pubkey.GetID()].key_origin.fingerprint);
+    mapKeyMetadata[pubkey.GetID()].key_origin.path = info.path;
+    mapKeyMetadata[pubkey.GetID()].has_key_origin = true;
+    mapKeyMetadata[pubkey.GetID()].hdKeypath = WriteHDKeypath(info.path);
+    return WriteKeyMetadata(mapKeyMetadata[pubkey.GetID()], pubkey, true);
+}

src/wallet/wallet.h

@@ -1219,6 +1219,9 @@ public:
 
     /** Implement lookup of key origin information through wallet key metadata. */
     bool GetKeyOrigin(const CKeyID& keyid, KeyOriginInfo& info) const override;
+
+    /** Add a KeyOriginInfo to the wallet */
+    bool AddKeyOrigin(const CPubKey& pubkey, const KeyOriginInfo& info);
 };
 
 /** A key allocated from the key pool. */