Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

• library SafeMath
•    - function mul(uint256 a, uint256 b)
•    - function div(uint256 a, uint256 b)
•    - function sub(uint256 a, uint256 b)
•    - function add(uint256 a, uint256 b)
• interface ERC20
•    - function name()
•    - function symbol()
•    - function decimals()
•    - function totalSupply()
•    - function balanceOf(address owner)
•    - function allowance(address owner, add ...
•    - function approve(address spender, uin ...
•    - function transfer(address to, uint va ...
•    - function transferFrom(address from, a ...
•  contract CoinslootSale2 *
•    - function getRate()
•    - function changeRate(uint256 _newRate)
•    - function withdrawTokensToOwner(uint25 ...
•    - function buyTokens(address _beneficia ...
•    - function _preValidatePurchase(address ...
•    - function _postValidatePurchase(addres ...
•    - function _deliverTokens(address _bene ...
•    - function _processPurchase(address _be ...
•    - function _updatePurchasingState(addre ...
•    - function _getTokenAmount(uint256 _wei ...
•    - function _forwardFunds()

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2021-05-12
*/

// SPDX-License-Identifier: MIT
pragma solidity 0.7.2;


library SafeMath {

  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0) {
      return 0;
    }
    uint256 c = a * b;
    assert(c / a == b);
    return c;
  }

  /**
  * @dev Integer division of two numbers, truncating the quotient.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return c;
  }

  /**
  * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }
 
  /**
  * @dev Adds two numbers, throws on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    assert(c >= a);
    return c;
  }
}

interface ERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}

contract CoinslootSale2 {
  using SafeMath for uint256;

  // The token being sold
  ERC20 public token;

  // Multisig smart contract address to which funds will be sent
  address payable public wallet = 0x1eFD3738e4Cb360ea0FB5FA6aB0cd49BBba516e2;

  address public owner;

  // How many token units a buyer gets per wei
  uint256 public rate;

  // Amount of wei raised
  uint256 public weiRaised;

  event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);

  constructor(uint256 _rate, ERC20 _token) {
    owner = msg.sender;
    rate = _rate;
    token = _token;
  }

  function getRate() public view returns (uint256) {
    return rate;
  }

  function changeRate(uint256 _newRate) public {
    require(msg.sender == owner);
    rate = _newRate;
  }

  function withdrawTokensToOwner(uint256 _amount) public {
    require(msg.sender == owner);
    _deliverTokens(owner, _amount);
  }

  receive() external payable {
    buyTokens(msg.sender);
  }

  function buyTokens(address _beneficiary) public payable {
    uint256 weiAmount = msg.value;
    _preValidatePurchase(_beneficiary, weiAmount);

    uint256 tokens = _getTokenAmount(weiAmount);

    weiRaised = weiRaised.add(weiAmount);

    _processPurchase(_beneficiary, tokens);
    emit TokenPurchase(msg.sender, _beneficiary, weiAmount, tokens);

    _updatePurchasingState(_beneficiary, weiAmount);

    _forwardFunds();
    _postValidatePurchase(_beneficiary, weiAmount);
  }

  function _preValidatePurchase(address _beneficiary, uint256 _weiAmount) internal pure {
    require(_beneficiary != address(0));
    require(_weiAmount != 0);
  }

  function _postValidatePurchase(address _beneficiary, uint256 _weiAmount) internal {}

  function _deliverTokens(address _beneficiary, uint256 _tokenAmount) internal {
    token.transfer(_beneficiary, _tokenAmount);
  }

  function _processPurchase(address _beneficiary, uint256 _tokenAmount) internal {
    _deliverTokens(_beneficiary, _tokenAmount);
  }

  function _updatePurchasingState(address _beneficiary, uint256 _weiAmount) internal {}

  function _getTokenAmount(uint256 _weiAmount) internal view returns (uint256){
    assert(rate != 0);
    return (_weiAmount / rate) * 10**18;
  }

  function _forwardFunds() internal {
    wallet.transfer(msg.value);
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"uint256","name":"_rate","type":"uint256"},{"internalType":"contract ERC20","name":"_token","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"purchaser","type":"address"},{"indexed":true,"internalType":"address","name":"beneficiary","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokenPurchase","type":"event"},{"inputs":[{"internalType":"address","name":"_beneficiary","type":"address"}],"name":"buyTokens","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newRate","type":"uint256"}],"name":"changeRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract ERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"wallet","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"weiRaised","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdrawTokensToOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

0000000000000000000000000000000000000000000000000000246139ca8000000000000000000000000000d919fd88d44f6500cd33b534d27e367a950ef5a3

-----Decoded View---------------
Arg [0] : _rate (uint256): 40000000000000
Arg [1] : _token (address): 0xd919fD88d44F6500cd33B534D27E367a950ef5A3

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000246139ca8000
Arg [1] : 000000000000000000000000d919fd88d44f6500cd33b534d27e367a950ef5a3

1940:2413:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2957:21;2967:10;2957:9;:21::i;:::-;1940:2413;;;;;2276:19;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;2329:24;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;2120:74;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;2591:73;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;2670:108;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;2784:133;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;2201:20;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;2990:497;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;2029:18;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;2990:497;3053:17;3073:9;3053:29;;3089:45;3110:12;3124:9;3089:20;:45::i;:::-;3143:14;3160:26;3176:9;3160:15;:26::i;:::-;3143:43;;3207:24;3221:9;3207;;:13;;:24;;;;:::i;:::-;3195:9;:36;;;;3240:38;3257:12;3271:6;3240:16;:38::i;:::-;3316:12;3290:58;;3304:10;3290:58;;;3330:9;3341:6;3290:58;;;;;;;;;;;;;;;;;;;;;;;;3357:47;3380:12;3394:9;3357:22;:47::i;:::-;3413:15;:13;:15::i;:::-;3435:46;3457:12;3471:9;3435:21;:46::i;:::-;2990:497;;;:::o;2276:19::-;;;;:::o;2329:24::-;;;;:::o;2120:74::-;;;;;;;;;;;;;:::o;2591:73::-;2631:7;2654:4;;2647:11;;2591:73;:::o;2670:108::-;2744:5;;;;;;;;;;;2730:19;;:10;:19;;;2722:28;;;;;;2764:8;2757:4;:15;;;;2670:108;:::o;2784:133::-;2868:5;;;;;;;;;;;2854:19;;:10;:19;;;2846:28;;;;;;2881:30;2896:5;;;;;;;;;;;2903:7;2881:14;:30::i;:::-;2784:133;:::o;2201:20::-;;;;;;;;;;;;;:::o;2029:18::-;;;;;;;;;;;;:::o;3493:165::-;3618:1;3594:26;;:12;:26;;;;3586:35;;;;;;3650:1;3636:10;:15;;3628:24;;;;;;3493:165;;:::o;4123:148::-;4191:7;4221:1;4213:4;;:9;;4206:17;;;;4259:6;4251:4;;4238:10;:17;;;;;;4237:28;4230:35;;4123:148;;;:::o;987:133::-;1045:7;1061:9;1077:1;1073;:5;1061:17;;1097:1;1092;:6;;1085:14;;;;1113:1;1106:8;;;987:133;;;;:::o;3892:134::-;3978:42;3993:12;4007;3978:14;:42::i;:::-;3892:134;;:::o;4032:85::-;;;:::o;4277:73::-;4318:6;;;;;;;;;;;:15;;:26;4334:9;4318:26;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;4277:73::o;3664:84::-;;;:::o;3754:132::-;3838:5;;;;;;;;;;:14;;;3853:12;3867;3838:42;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;3754:132;;:::o

ipfs://b394737a84de1dad785d57d9cbbf437ef51ba15e8ea16955a550e8e7d0bf351b