Add special error for genesis coinbase to gettransaction

1 files changed, 5 insertions, 0 deletions

diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index 82399e1567..00e73675b4 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -147,6 +147,11 @@ UniValue getrawtransaction(const JSONRPCRequest& request)
     uint256 hash = ParseHashV(request.params[0], "parameter 1");
     CBlockIndex* blockindex = nullptr;
 
+    if (hash == Params().GenesisBlock().hashMerkleRoot) {
+        // Special exception for the genesis block coinbase transaction
+        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "The genesis block coinbase is not considered an ordinary transaction and cannot be retrieved");
+    }
+
     // Accept either a bool (true) or a num (>=1) to indicate verbose output.
     bool fVerbose = false;
     if (!request.params[1].isNull()) {