Merge pull request #31 from gleim/master

Add bounties folder and CrowdsaleToken bounty contract

contracts/bounties/CrowdsaleTokenBounty.sol

+pragma solidity ^0.4.0;
+import '../PullPayment.sol';
+import '../token/CrowdsaleToken.sol';
+
+/*
+ * Bounty
+ * This bounty will pay out if you can cause a CrowdsaleToken's balance
+ * to be lower than its totalSupply, which would mean that it doesn't 
+ * have sufficient ether for everyone to withdraw.
+ */
+contract CrowdsaleTokenBounty is PullPayment {
+
+  bool public claimed;
+  mapping(address => address) public researchers;
+
+  function() {
+    if (claimed) throw;
+  }
+
+  function createTarget() returns(CrowdsaleToken) {
+    CrowdsaleToken target = new CrowdsaleToken();
+    researchers[target] = msg.sender;
+    return target;
+  }
+
+  function claim(CrowdsaleToken target) {
+    address researcher = researchers[target];
+    if (researcher == 0) throw;
+    // Check CrowdsaleToken contract invariants
+    // Customize this to the specifics of your contract
+    if (target.totalSupply() == target.balance) {
+      throw;
+    }
+    asyncSend(researcher, this.balance);
+    claimed = true;
+  }
+
+}

contracts/Bounty.sol → contracts/bounties/SimpleTokenBounty.sol

 pragma solidity ^0.4.0;
-import './PullPayment.sol';
-import './token/SimpleToken.sol';
+import '../PullPayment.sol';
+import '../token/SimpleToken.sol';
 
 /*
  * Bounty
@@ -8,7 +8,7 @@ import './token/SimpleToken.sol';
  * to be lower than its totalSupply, which would mean that it doesn't 
  * have sufficient ether for everyone to withdraw.
  */
-contract Bounty is PullPayment {
+contract SimpleTokenBounty is PullPayment {
 
   bool public claimed;
   mapping(address => address) public researchers;

migrations/2_deploy_contracts.js

@@ -2,7 +2,8 @@ module.exports = function(deployer) {
   deployer.deploy(PullPaymentBid);
   deployer.deploy(BadArrayUse);
   deployer.deploy(ProofOfExistence);
-  deployer.deploy(Bounty);
+  deployer.deploy(SimpleTokenBounty);
+  deployer.deploy(CrowdsaleTokenBounty);
   deployer.deploy(Ownable);
   deployer.deploy(LimitFunds);
 };