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chequebook: require a modern version of solidity

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Alex Beregszaszi 2017-11-04 14:32:18 -05:00
parent 9f7cd75682
commit f9b88bac27
1 changed files with 5 additions and 3 deletions
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8
contracts/chequebook/contract/chequebook.sol
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@ -1,4 +1,6 @@
import "mortal"; pragma solidity ^0.4.18;
import "https://github.com/ethereum/solidity/std/mortal.sol";
/// @title Chequebook for Ethereum micropayments /// @title Chequebook for Ethereum micropayments
/// @author Daniel A. Nagy <daniel@ethdev.com> /// @author Daniel A. Nagy <daniel@ethdev.com>
@ -23,7 +25,7 @@ contract chequebook is mortal {
// Only cheques that are more recent than the last cashed one are considered. // Only cheques that are more recent than the last cashed one are considered.
if(amount <= sent[beneficiary]) return; if(amount <= sent[beneficiary]) return;
// Check the digital signature of the cheque. // Check the digital signature of the cheque.
bytes32 hash = sha3(address(this), beneficiary, amount); bytes32 hash = keccak256(address(this), beneficiary, amount);
if(owner != ecrecover(hash, sig_v, sig_r, sig_s)) return; if(owner != ecrecover(hash, sig_v, sig_r, sig_s)) return;
// Attempt sending the difference between the cumulative amount on the cheque // Attempt sending the difference between the cumulative amount on the cheque
// and the cumulative amount on the last cashed cheque to beneficiary. // and the cumulative amount on the last cashed cheque to beneficiary.
@ -40,7 +42,7 @@ contract chequebook is mortal {
// owner.sendToDebtorsPrison(); // owner.sendToDebtorsPrison();
Overdraft(owner); Overdraft(owner);
// Compensate beneficiary. // Compensate beneficiary.
suicide(beneficiary); selfdestruct(beneficiary);
} }
} }
} }