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guard against beneficiary == 0x0

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Francisco Giordano
2017-07-02 16:51:26 -03:00
parent 54d74b1c26
commit 46fe7ee76d
1 changed files with 1 additions and 0 deletions
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contracts/crowdsale/Crowdsale.sol
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@ -67,6 +67,7 @@ contract Crowdsale {
// low level token purchase function // low level token purchase function
function buyTokens(address beneficiary) payable { function buyTokens(address beneficiary) payable {
require(beneficiary != 0x0);
require(purchaseValid()); require(purchaseValid());
uint256 weiAmount = msg.value; uint256 weiAmount = msg.value;