check-l2: update to check for the initialized values

op-chain-ops/cmd/check-l2/main.go

@@ -36,16 +36,16 @@ func main() {
 		Usage: "Check that an OP Stack L2 has been configured correctly",
 		Flags: []cli.Flag{
 			&cli.StringFlag{
-				Name:     "l1-rpc-url",
-				Required: true,
-				Usage:    "L1 RPC URL",
-				EnvVars:  []string{"L1_RPC_URL"},
+				Name:    "l1-rpc-url",
+				Value:   "http://127.0.0.1:8545",
+				Usage:   "L1 RPC URL",
+				EnvVars: []string{"L1_RPC_URL"},
 			},
 			&cli.StringFlag{
-				Name:     "l2-rpc-url",
-				Required: true,
-				Usage:    "L2 RPC URL",
-				EnvVars:  []string{"L2_RPC_URL"},
+				Name:    "l2-rpc-url",
+				Value:   "http://127.0.0.1:9545",
+				Usage:   "L2 RPC URL",
+				EnvVars: []string{"L2_RPC_URL"},
 			},
 		},
 		Action: entrypoint,
@@ -718,6 +718,13 @@ func checkL2CrossDomainMessenger(addr common.Address, client *ethclient.Client)
 	if err != nil {
 		return err
 	}
+
+	initialized, err := getInitialized("L2CrossDomainMessenger", addr, client)
+	if err != nil {
+		return err
+	}
+	log.Info("L2CrossDomainMessenger", "_initialized", initialized)
+
 	log.Info("L2CrossDomainMessenger version", "version", version)
 	return nil
 }
@@ -834,6 +841,11 @@ func getInitialized(name string, addr common.Address, client *ethclient.Client)
 	if entry.Offset+typ.NumberOfBytes > uint(len(value)) {
 		return nil, fmt.Errorf("value length is too short")
 	}
-	initialized := new(big.Int).SetBytes(value[entry.Offset : entry.Offset+typ.NumberOfBytes])
+	// Swap the endianness
+	slice := common.CopyBytes(value)
+	for i, j := 0, len(slice)-1; i < j; i, j = i+1, j-1 {
+		slice[i], slice[j] = slice[j], slice[i]
+	}
+	initialized := new(big.Int).SetBytes(slice[entry.Offset : entry.Offset+typ.NumberOfBytes])
 	return initialized, nil
 }