IsUsedDestination should count any known single-key address

1 files changed, 23 insertions, 7 deletions

diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index b1e1385ca3..ac167d108a 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -719,17 +719,33 @@ void CWallet::SetUsedDestinationState(WalletBatch& batch, const uint256& hash, u
     }
 }
 
-bool CWallet::IsUsedDestination(const CTxDestination& dst) const
-{
-    LOCK(cs_wallet);
-    return IsMine(dst) && GetDestData(dst, "used", nullptr);
-}
-
 bool CWallet::IsUsedDestination(const uint256& hash, unsigned int n) const
 {
+    AssertLockHeld(cs_wallet);
     CTxDestination dst;
     const CWalletTx* srctx = GetWalletTx(hash);
-    return srctx && ExtractDestination(srctx->tx->vout[n].scriptPubKey, dst) && IsUsedDestination(dst);
+    if (srctx) {
+        assert(srctx->tx->vout.size() > n);
+        LegacyScriptPubKeyMan* spk_man = GetLegacyScriptPubKeyMan();
+        // When descriptor wallets arrive, these additional checks are
+        // likely superfluous and can be optimized out
+        assert(spk_man != nullptr);
+        for (const auto& keyid : GetAffectedKeys(srctx->tx->vout[n].scriptPubKey, *spk_man)) {
+            WitnessV0KeyHash wpkh_dest(keyid);
+            if (GetDestData(wpkh_dest, "used", nullptr)) {
+                return true;
+            }
+            ScriptHash sh_wpkh_dest(wpkh_dest);
+            if (GetDestData(sh_wpkh_dest, "used", nullptr)) {
+                return true;
+            }
+            PKHash pkh_dest(keyid);
+            if (GetDestData(pkh_dest, "used", nullptr)) {
+                return true;
+            }
+        }
+    }
+    return false;
 }
 
 bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFlushOnClose)