guard against beneficiary == 0x0

2017-07-02 16:51:26 -03:00
parent 54d74b1c26
commit 46fe7ee76d
1 changed files with 1 additions and 0 deletions
--- a/contracts/crowdsale/Crowdsale.sol
+++ b/contracts/crowdsale/Crowdsale.sol
@ -67,6 +67,7 @@ contract Crowdsale {

  // low level token purchase function
  function buyTokens(address beneficiary) payable {
+    require(beneficiary != 0x0);
    require(purchaseValid());

    uint256 weiAmount = msg.value;