upgradability security improve

2018-05-07 00:40:29 -03:00 · 2018-05-07 00:40:29 -03:00 · 695afeac37
parent ed5a699924
commit 695afeac37
1 changed files with 1 additions and 0 deletions
--- a/contracts/registry/ENSSubdomainRegistry.sol
+++ b/contracts/registry/ENSSubdomainRegistry.sol
@ -250,6 +250,7 @@ contract ENSSubdomainRegistry is Controlled {
        external
    {
        require(msg.sender == parentRegistry);
+        require(domains[_domain].state == NodeState.Free);
        require(ens.owner(_domain) == address(this));
        domains[_domain] = Domain(NodeState.Owned, _price);
    }