Update Whitelist.sol

2019-08-19 12:15:46 +10:00
parent d5ce6c464b
commit db061c9355
1 changed files with 4 additions and 2 deletions
--- a/contracts/exchange/contracts/examples/Whitelist.sol
+++ b/contracts/exchange/contracts/examples/Whitelist.sol
@@ -73,10 +73,12 @@ contract Whitelist is
    )
        external
        view
-        returns (bool isValid)
+        returns (bytes4)
    {
        // solhint-disable-next-line avoid-tx-origin
-        return signerAddress == tx.origin;
+        require(signerAddress == tx.origin, "INVALID_SIGNER");
+        bytes4 magicValue = bytes4(keccak256("isValidValidatorSignature(address,bytes32,address,bytes)"));
+        return magicValue;
    }
    // solhint-enable no-unused-vars