[rpc] Add address type option to addmultisigaddress

src/wallet/rpcwallet.cpp

@@ -1169,9 +1169,8 @@ UniValue addmultisigaddress(const JSONRPCRequest& request)
         return NullUniValue;
     }
 
-    if (request.fHelp || request.params.size() < 2 || request.params.size() > 3)
-    {
-        std::string msg = "addmultisigaddress nrequired [\"key\",...] ( \"account\" )\n"
+    if (request.fHelp || request.params.size() < 2 || request.params.size() > 4) {
+        std::string msg = "addmultisigaddress nrequired [\"key\",...] ( \"account\" \"address_type\" )\n"
             "\nAdd a nrequired-to-sign multisignature address to the wallet. Requires a new wallet backup.\n"
             "Each key is a Bitcoin address or hex-encoded public key.\n"
             "This functionality is only intended for use with non-watchonly addresses.\n"
@@ -1186,6 +1185,7 @@ UniValue addmultisigaddress(const JSONRPCRequest& request)
             "       ...,\n"
             "     ]\n"
             "3. \"account\"                      (string, optional) DEPRECATED. An account to assign the addresses to.\n"
+            "4. \"address_type\"                 (string, optional) The address type to use. Options are \"legacy\", \"p2sh-segwit\", and \"bech32\". Default is set by -addresstype.\n"
 
             "\nResult:\n"
             "{\n"
@@ -1224,10 +1224,18 @@ UniValue addmultisigaddress(const JSONRPCRequest& request)
         }
     }
 
+    OutputType output_type = g_address_type;
+    if (!request.params[3].isNull()) {
+        output_type = ParseOutputType(request.params[3].get_str(), output_type);
+        if (output_type == OUTPUT_TYPE_NONE) {
+            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("Unknown address type '%s'", request.params[3].get_str()));
+        }
+    }
+
     // Construct using pay-to-script-hash:
     CScript inner = CreateMultisigRedeemscript(required, pubkeys);
     pwallet->AddCScript(inner);
-    CTxDestination dest = pwallet->AddAndGetDestinationForScript(inner, g_address_type);
+    CTxDestination dest = pwallet->AddAndGetDestinationForScript(inner, output_type);
     pwallet->SetAddressBook(dest, strAccount, "send");
 
     // Return old style interface
@@ -3519,7 +3527,7 @@ static const CRPCCommand commands[] =
     { "hidden",             "resendwallettransactions", &resendwallettransactions, {} },
     { "wallet",             "abandontransaction",       &abandontransaction,       {"txid"} },
     { "wallet",             "abortrescan",              &abortrescan,              {} },
-    { "wallet",             "addmultisigaddress",       &addmultisigaddress,       {"nrequired","keys","account"} },
+    { "wallet",             "addmultisigaddress",       &addmultisigaddress,       {"nrequired","keys","account","address_type"} },
     { "hidden",             "addwitnessaddress",        &addwitnessaddress,        {"address","p2sh"} },
     { "wallet",             "backupwallet",             &backupwallet,             {"destination"} },
     { "wallet",             "bumpfee",                  &bumpfee,                  {"txid", "options"} },