Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE

More Options

• Similar
• Submit Audit
• Compare

pragma solidity 0.5.17;

import "./SafeMath.sol";

interface ERC20Base {
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);

    function totalSupply() external view returns (uint256);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);

    function balanceOf(address who) external view returns (uint256);
}

contract ERC20 is ERC20Base {
    function transfer(address to, uint256 value) external returns (bool);

    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

contract ERC20NS is ERC20Base {
    function transfer(address to, uint256 value) external;

    function transferFrom(address from, address to, uint256 value) external;
}

/**
 * @title Standard ERC20 token
 * @dev Implementation of the basic standard token.
 *  See https://github.com/ethereum/EIPs/issues/20
 */
contract StandardToken is ERC20 {
    using SafeMath for uint256;

    string public name;
    string public symbol;
    uint8 public decimals;
    uint256 public totalSupply;
    mapping(address => mapping(address => uint256)) public allowance;
    mapping(address => uint256) public balanceOf;

    constructor(uint256 _initialAmount, string memory _tokenName, uint8 _decimalUnits, string memory _tokenSymbol) public {
        totalSupply = _initialAmount;
        balanceOf[msg.sender] = _initialAmount;
        name = _tokenName;
        symbol = _tokenSymbol;
        decimals = _decimalUnits;
    }

    function transfer(address dst, uint256 amount) external returns (bool) {
        balanceOf[msg.sender] = balanceOf[msg.sender].sub(amount, "Insufficient balance");
        balanceOf[dst] = balanceOf[dst].add(amount, "Balance overflow");
        emit Transfer(msg.sender, dst, amount);
        return true;
    }

    function transferFrom(address src, address dst, uint256 amount) external returns (bool) {
        allowance[src][msg.sender] = allowance[src][msg.sender].sub(amount, "Insufficient allowance");
        balanceOf[src] = balanceOf[src].sub(amount, "Insufficient balance");
        balanceOf[dst] = balanceOf[dst].add(amount, "Balance overflow");
        emit Transfer(src, dst, amount);
        return true;
    }

    function approve(address _spender, uint256 amount) external returns (bool) {
        allowance[msg.sender][_spender] = amount;
        emit Approval(msg.sender, _spender, amount);
        return true;
    }
}

contract FaucetToken is StandardToken {
    constructor(uint256 _initialAmount, string memory _tokenName, uint8 _decimalUnits, string memory _tokenSymbol) public
    StandardToken(_initialAmount, _tokenName, _decimalUnits, _tokenSymbol) {
    }

    function allocateTo(address _owner, uint256 value) public {
        balanceOf[_owner] += value;
        totalSupply += value;
        emit Transfer(address(this), _owner, value);
    }
}

pragma solidity 0.5.17;

// From https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/math/Math.sol
// Subject to the MIT license.

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting with custom message on overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, errorMessage);

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on underflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot underflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction underflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on underflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot underflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, errorMessage);

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers.
     * Reverts on division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers.
     * Reverts with custom message on division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

[{"inputs":[{"internalType":"uint256","name":"_initialAmount","type":"uint256"},{"internalType":"string","name":"_tokenName","type":"string"},{"internalType":"uint8","name":"_decimalUnits","type":"uint8"},{"internalType":"string","name":"_tokenSymbol","type":"string"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":false,"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"allocateTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"dst","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"src","type":"address"},{"internalType":"address","name":"dst","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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

0x608060405234801561001057600080fd5b506004361061009e5760003560e01c8063313ce56711610066578063313ce567146101de57806370a08231146101fc57806395d89b4114610222578063a9059cbb1461022a578063dd62ed3e146102565761009e565b806306fdde03146100a357806308bca56614610120578063095ea7b31461014e57806318160ddd1461018e57806323b872dd146101a8575b600080fd5b6100ab610284565b6040805160208082528351818301528351919283929083019185019080838360005b838110156100e55781810151838201526020016100cd565b50505050905090810190601f1680156101125780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b61014c6004803603604081101561013657600080fd5b506001600160a01b038135169060200135610312565b005b61017a6004803603604081101561016457600080fd5b506001600160a01b038135169060200135610372565b604080519115158252519081900360200190f35b6101966103d8565b60408051918252519081900360200190f35b61017a600480360360608110156101be57600080fd5b506001600160a01b038135811691602081013590911690604001356103de565b6101e661056a565b6040805160ff9092168252519081900360200190f35b6101966004803603602081101561021257600080fd5b50356001600160a01b0316610573565b6100ab610585565b61017a6004803603604081101561024057600080fd5b506001600160a01b0381351690602001356105df565b6101966004803603604081101561026c57600080fd5b506001600160a01b03813581169160200135166106e8565b6000805460408051602060026001851615610100026000190190941693909304601f8101849004840282018401909252818152929183018282801561030a5780601f106102df5761010080835404028352916020019161030a565b820191906000526020600020905b8154815290600101906020018083116102ed57829003601f168201915b505050505081565b6001600160a01b03821660008181526005602090815260409182902080548501905560038054850190558151848152915130927fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef92908290030190a35050565b3360008181526004602090815260408083206001600160a01b038716808552908352818420869055815186815291519394909390927f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925928290030190a350600192915050565b60035481565b6040805180820182526016815275496e73756666696369656e7420616c6c6f77616e636560501b6020808301919091526001600160a01b0386166000908152600482528381203382529091529182205461043f91849063ffffffff61070516565b6001600160a01b0385166000818152600460209081526040808320338452825280832094909455835180850185526014815273496e73756666696369656e742062616c616e636560601b818301529282526005905291909120546104aa91849063ffffffff61070516565b6001600160a01b0380861660009081526005602081815260408084209590955584518086018652601081526f42616c616e6365206f766572666c6f7760801b81830152938816835252919091205461050991849063ffffffff61079c16565b6001600160a01b0380851660008181526005602090815260409182902094909455805186815290519193928816927fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef92918290030190a35060019392505050565b60025460ff1681565b60056020526000908152604090205481565b60018054604080516020600284861615610100026000190190941693909304601f8101849004840282018401909252818152929183018282801561030a5780601f106102df5761010080835404028352916020019161030a565b6040805180820182526014815273496e73756666696369656e742062616c616e636560601b60208083019190915233600090815260059091529182205461062d91849063ffffffff61070516565b3360009081526005602081815260408084209490945583518085018552601081526f42616c616e6365206f766572666c6f7760801b818301526001600160a01b03881684529190529190205461068a91849063ffffffff61079c16565b6001600160a01b0384166000818152600560209081526040918290209390935580518581529051919233927fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef9281900390910190a350600192915050565b600460209081526000928352604080842090915290825290205481565b600081848411156107945760405162461bcd60e51b81526004018080602001828103825283818151815260200191508051906020019080838360005b83811015610759578181015183820152602001610741565b50505050905090810190601f1680156107865780820380516001836020036101000a031916815260200191505b509250505060405180910390fd5b505050900390565b600083830182858210156107f15760405162461bcd60e51b8152602060048201818152835160248401528351909283926044909101919085019080838360008315610759578181015183820152602001610741565b5094935050505056fea265627a7a7231582012752ffb7639b8639cce6b157bac7f823ebd886b00bfa53025659978be4c00fd64736f6c63430005110032

00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000000000000000000000000000000000000000000f43726f737320436861696e204b534d0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000558434b534d000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _initialAmount (uint256): 0
Arg [1] : _tokenName (string): Cross Chain KSM
Arg [2] : _decimalUnits (uint8): 8
Arg [3] : _tokenSymbol (string): XCKSM

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000008
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000f
Arg [5] : 43726f737320436861696e204b534d0000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [7] : 58434b534d000000000000000000000000000000000000000000000000000000