smartbugs-curated/dataset/other/name_registrar.sol

33 lines
1009 B
Solidity
Raw Normal View History

/*
* @source: https://github.com/sigp/solidity-security-blog#storage-example
* @vulnerable_at_lines: 21
*/
// A Locked Name Registrar
pragma solidity ^0.4.15;
contract NameRegistrar {
bool public unlocked = false; // registrar locked, no name updates
struct NameRecord { // map hashes to addresses
bytes32 name;
address mappedAddress;
}
mapping(address => NameRecord) public registeredNameRecord; // records who registered names
mapping(bytes32 => address) public resolve; // resolves hashes to addresses
function register(bytes32 _name, address _mappedAddress) public {
// set up the new NameRecord
// <yes> <report> OTHER - uninitialized storage
NameRecord newRecord;
newRecord.name = _name;
newRecord.mappedAddress = _mappedAddress;
resolve[_name] = _mappedAddress;
registeredNameRecord[msg.sender] = newRecord;
require(unlocked); // only allow registrations if contract is unlocked
}
}