-
Notifications
You must be signed in to change notification settings - Fork 0
/
DemoContract.sol
54 lines (42 loc) · 1.59 KB
/
DemoContract.sol
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract DamnVulnerableContract is ERC20, Ownable {
mapping(address => uint) public balances;
address public someOracle;
address[] users;
constructor(uint256 initialSupply, address _someOracle) ERC20("SolidityScan", "SCN") public {
_mint(msg.sender, initialSupply);
someOracle = _someOracle;
}
function mint(address _account, uint256 _amount) external {
_mint(_account, _amount);
}
function deposit(address _to) external payable {
balances[_to] += msg.value;
users.push(_to);
}
function withdraw(uint _amount) public {
require(address(this).balance == 10 ether, "This will probably throw due to incorrect logic");
if(balances[msg.sender] >= _amount) {
(bool result,) = msg.sender.call{value:_amount}("");
if(result) {
_amount;
}
balances[msg.sender] -= _amount;
}
}
function fetchPrice() public returns (bytes memory) {
(bool success, bytes memory data) = someOracle.call{gas: 5000}(abi.encodeWithSignature("priceFeed(uint256)", 123));
return data;
}
function calcFunc(uint256 _a, uint256 _b) external pure returns (uint256){
return (_a + _b)*100000000;
}
function payRewards() external onlyOwner {
for (uint256 i = 0; i < users.length; i++) {
transfer(users[i], balances[users[i]]);
}
}
}