The registry contract provides a simple mapping between a domain and its resolver. Everything related to domain ownership is managed in this contract, including ownership transfer and sub-domain creation. Each registry entry refers to a resolver which handles the resolution between the name domain and the desired resource.
The RNS Registry contract exposes functions for accessing data and functions to modify data:
function owner(bytes32 node) constant returns (address);
Returns the owner (registrar) of the specified node.
function resolver(bytes32 node) constant returns (address);
Returns the resolver for the specified node.
function ttl(bytes32 node) constant returns (uint64);
Returns the time-to-live (TTL) of the node; that is, the maximum duration for which a node’s information may be cached.
function setOwner(bytes32 node, address owner);
Transfers ownership of a node to another registrar. This function may only be called by the current owner of node. A successful call to this function logs the event Transfer(bytes32 indexed, address).
function setSubnodeOwner(bytes32 node, bytes32 label, address owner);
Creates a new node label.node and sets its owner to owner, or updates the node with a new owner if it already exists. This function may only be called by the current owner of node. A successful call to this function logs the event NewOwner(bytes32 indexed, bytes32 indexed, address).
function setResolver(bytes32 node, address resolver);
Sets the Resolver address for node, the contract that handles the desired resolutions. This function may only be called by the owner of node. A successful call to this function logs the event NewResolver(bytes32 indexed, address).
function setTTL(bytes32 node, uint64 ttl);
Sets the TTL for a node. A node’s TTL applies to the ‘owner’ and ‘resolver’ records in the Registry, as well as to any information returned by the associated resolver.
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