pragma solidity ^0.4.24; import "./ENS.sol"; /** * The ENS registry contract. */ contract ENSRegistry is ENS { struct Record { address owner; address resolver; uint64 ttl; } mapping (bytes32 => Record) records; // Permits modifications only by the owner of the specified node. modifier only_owner(bytes32 node) { require(records[node].owner == msg.sender); _; } /** * @dev Constructs a new ENS registrar. */ constructor() public { records[0x0].owner = msg.sender; } /** * @dev Transfers ownership of a node to a new address. May only be called by the current owner of the node. * @param node The node to transfer ownership of. * @param owner The address of the new owner. */ function setOwner(bytes32 node, address owner) public only_owner(node) { emit Transfer(node, owner); records[node].owner = owner; } /** * @dev Transfers ownership of a subnode keccak256(node, label) to a new address. May only be called by the owner of the parent node. * @param node The parent node. * @param label The hash of the label specifying the subnode. * @param owner The address of the new owner. */ function setSubnodeOwner(bytes32 node, bytes32 label, address owner) public only_owner(node) { bytes32 subnode = keccak256(abi.encodePacked(node, label)); emit NewOwner(node, label, owner); records[subnode].owner = owner; } /** * @dev Sets the resolver address for the specified node. * @param node The node to update. * @param resolver The address of the resolver. */ function setResolver(bytes32 node, address resolver) public only_owner(node) { emit NewResolver(node, resolver); records[node].resolver = resolver; } /** * @dev Sets the TTL for the specified node. * @param node The node to update. * @param ttl The TTL in seconds. */ function setTTL(bytes32 node, uint64 ttl) public only_owner(node) { emit NewTTL(node, ttl); records[node].ttl = ttl; } /** * @dev Returns the address that owns the specified node. * @param node The specified node. * @return address of the owner. */ function owner(bytes32 node) public view returns (address) { return records[node].owner; } /** * @dev Returns the address of the resolver for the specified node. * @param node The specified node. * @return address of the resolver. */ function resolver(bytes32 node) public view returns (address) { return records[node].resolver; } /** * @dev Returns the TTL of a node, and any records associated with it. * @param node The specified node. * @return ttl of the node. */ function ttl(bytes32 node) public view returns (uint64) { return records[node].ttl; } }