Implementations for registrars and local resolvers for the Ethereum Name Service
Provides an abstract interface for the methods all ENS resolvers are expected to implement. For details, see the ENS specification.
Provides a functionally complete implementation of an ENS resolver and registrar for individual use. The account that deploys the contract is considered the owner, and is the only party that can update ENS mappings. Simple methods are provided for inserting and updating mappings, as well, as iterating over existing names.
Note that for simplicity, transactions in this implementation include the unhashed names being updated, and these are stored in the state, so it would be straightforward for someone to enumerate your domain.
Appends a resource record to a given name. rtype specifies the record type, such as "HA" (which represents an Ethereum address). ttl specifies the time to live for caching of this record, and data specifies the data to associate with the record.
For example, calling appendRR("foo.bar", "HA", 3600, "0x1234...") will insert a record that can be returned by the simple addr function under the name "foo.bar".
Replaces a resource record on a given name. idx specifies the zero-based index of the resource record to replace. All other arguments are as described in appendRR.
Deletes a resource record under the specified name and zero-based index.
Adds a node from another ENS resolver as a subresolver under this one. ttl specifies the time to live for caching this record; addr specifies the address of the target resolver, and nodeId specifies the node in the target resolver to reference.
Deletes a subresolver record.
Permits iteration over the names defined under a node. Returns the idx'th name under the specified node, or the empty string if idx extends beyond the end of the list.
Permits iteration over the name hashes defined under a node. Returns the idxth hash under the specified node, or the empty string if idx extends beyond the end of the list.
A simple local resolver library to allow contracts to look up other contracts. Gas cost is currently approximately 7000 gas plus 2000 gas per name component.
resolveOne(address root, string name, bytes16 qtype) returns (uint16 rcode, bytes16 rtype, uint16 len, bytes32 data)
Resolves a name, returning the first matching record. root specifies the root resolver to use, name specifies the name to look up, and `qtype specifies the record type to query for. Returns the response code, length, and record data.
Resolves a name, returning the first "HA" record, or the empty string if no such name or record exists.