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33 lines
1.0 KiB
33 lines
1.0 KiB
contract C{
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mapping (address => uint256) balances;
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function bad(address[] memory receivers) public payable {
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for (uint256 i = 0; i < receivers.length; i++) {
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address(this).delegatecall(abi.encodeWithSignature("addBalance(address)", receivers[i]));
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}
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}
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function addBalance(address a) public payable {
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balances[a] += msg.value;
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}
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function bad2(address[] memory receivers) public payable {
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bad2_internal(receivers);
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}
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function bad2_internal(address[] memory receivers) internal {
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for (uint256 i = 0; i < receivers.length; i++) {
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address(this).delegatecall(abi.encodeWithSignature("addBalance(address)", receivers[i]));
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}
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}
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function bad3(address[] memory receivers) public payable {
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for (uint256 i = 0; i < receivers.length; i++) {
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for (uint256 j = 0; j < receivers.length; j++) {
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address(this).delegatecall(abi.encodeWithSignature("addBalance(address)", receivers[i]));
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}
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}
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}
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} |