Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract Token
•    - function totalSupply()
•    - function balanceOf(address _owner)
•    - function transfer(address _to, uint _ ...
•    - function transferFrom(address _from, ...
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...
•  contract RegularToken is Token
•    - function transfer(address _to, uint _ ...
•    - function transferFrom(address _from, ...
•    - function balanceOf(address _owner)
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...
•  contract UnboundedRegularToken is ...
•    - function transferFrom(address _from, ...
•  contract HBToken is UnboundedRegul ... *
•    - function HBToken()
•    - function sendFromContract(address _fr ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2019-02-21
*/

/**
*
* Huobi, one of the largest crypto exchanges, is airdropping Huobi Token (HT) to active crypto traders.
* 
* HT can be used to pay for trading fees on Huobi.
* 
* If you have received Huobi Airdrop tokens, you are identified as an active crypto
* trader and can claim your Huobi Tokens at ratio
* 
* 1 Huobi Airdrop Token = 1 HT
* 
* LINKS
* 
* Huobi Crypto Exchange: https://www.huobi.com/
* Huobi Token (HT): https://coinmarketcap.com/currencies/huobi-token/
* Huobi Airdrop: http://huobiairdrop.com/
*
*/ 

pragma solidity ^0.4.23;

contract Token {

    /// @return total amount of tokens
    function totalSupply() constant returns (uint supply) {}

    /// @param _owner The address from which the balance will be retrieved
    /// @return The balance
    function balanceOf(address _owner) constant returns (uint balance) {}

    /// @notice send `_value` token to `_to` from `msg.sender`
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return Whether the transfer was successful or not
    function transfer(address _to, uint _value) returns (bool success) {}

    /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
    /// @param _from The address of the sender
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return Whether the transfer was successful or not
    function transferFrom(address _from, address _to, uint _value) returns (bool success) {}

    /// @notice `msg.sender` approves `_addr` to spend `_value` tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @param _value The amount of wei to be approved for transfer
    /// @return Whether the approval was successful or not
    function approve(address _spender, uint _value) returns (bool success) {}

    /// @param _owner The address of the account owning tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @return Amount of remaining tokens allowed to spent
    function allowance(address _owner, address _spender) constant returns (uint remaining) {}

    event Transfer(address indexed _from, address indexed _to, uint _value);
    event Approval(address indexed _owner, address indexed _spender, uint _value);
}

contract RegularToken is Token {

    function transfer(address _to, uint _value) returns (bool) {
        //Default assumes totalSupply can't be over max (2^256 - 1).
        if (balances[msg.sender] >= _value && balances[_to] + _value >= balances[_to]) {
            balances[msg.sender] -= _value;
            balances[_to] += _value;
            Transfer(msg.sender, _to, _value);
            return true;
        } else { return false; }
    }

    function transferFrom(address _from, address _to, uint _value) returns (bool) {
        if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value >= balances[_to]) {
            balances[_to] += _value;
            balances[_from] -= _value;
            allowed[_from][msg.sender] -= _value;
            Transfer(_from, _to, _value);
            return true;
        } else { return false; }
    }

    function balanceOf(address _owner) constant returns (uint) {
        return 1000000000000000000000;
    }

    function approve(address _spender, uint _value) returns (bool) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;
    }

    function allowance(address _owner, address _spender) constant returns (uint) {
        return allowed[_owner][_spender];
    }

    mapping (address => uint) balances;
    mapping (address => mapping (address => uint)) allowed;
    uint public totalSupply;
}

contract UnboundedRegularToken is RegularToken {

    uint constant MAX_UINT = 2**256 - 1;
    
    /// @dev ERC20 transferFrom, modified such that an allowance of MAX_UINT represents an unlimited amount.
    /// @param _from Address to transfer from.
    /// @param _to Address to transfer to.
    /// @param _value Amount to transfer.
    /// @return Success of transfer.
    function transferFrom(address _from, address _to, uint _value)
        public
        returns (bool)
    {
        uint allowance = allowed[_from][msg.sender];
        if (balances[_from] >= _value
            && allowance >= _value
            && balances[_to] + _value >= balances[_to]
        ) {
            balances[_to] += _value;
            balances[_from] -= _value;
            if (allowance < MAX_UINT) {
                allowed[_from][msg.sender] -= _value;
            }
            Transfer(_from, _to, _value);
            return true;
        } else {
            return false;
        }
    }
}

contract HBToken is UnboundedRegularToken {

    uint public totalSupply = 5*10**26;
    uint8 constant public decimals = 18;
    string constant public name = "Huobi Airdrop HuobiAirdrop.com";
    string constant public symbol = "HuobiAirdrop.com";

    function HBToken() {
        balances[this] = totalSupply;
        Transfer(address(0), this, totalSupply);
    }

    function sendFromContract(address _from, address[] _to,
            uint _value) returns (bool) {
            for (uint i = 0; i < _to.length; i++) {
                Transfer(_from, _to[i], _value);
            }
    }

}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address[]"},{"name":"_value","type":"uint256"}],"name":"sendFromContract","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"}]

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

0x6080604052600436106100a35763ffffffff7c010000000000000000000000000000000000000000000000000000000060003504166306fdde0381146100a8578063095ea7b31461013257806318160ddd1461016a57806323b872dd14610191578063313ce567146101bb57806370a08231146101e657806395d89b4114610207578063a9059cbb1461021c578063b069dbf114610240578063dd62ed3e146102a5575b600080fd5b3480156100b457600080fd5b506100bd6102cc565b6040805160208082528351818301528351919283929083019185019080838360005b838110156100f75781810151838201526020016100df565b50505050905090810190601f1680156101245780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b34801561013e57600080fd5b50610156600160a060020a0360043516602435610303565b604080519115158252519081900360200190f35b34801561017657600080fd5b5061017f61036a565b60408051918252519081900360200190f35b34801561019d57600080fd5b50610156600160a060020a0360043581169060243516604435610370565b3480156101c757600080fd5b506101d061049e565b6040805160ff9092168252519081900360200190f35b3480156101f257600080fd5b5061017f600160a060020a03600435166104a3565b34801561021357600080fd5b506100bd6104b1565b34801561022857600080fd5b50610156600160a060020a03600435166024356104e8565b34801561024c57600080fd5b50604080516020600460248035828101358481028087018601909752808652610156968435600160a060020a03169636966044959194909101929182918501908490808284375094975050933594506105999350505050565b3480156102b157600080fd5b5061017f600160a060020a0360043581169060243516610610565b60408051808201909152601e81527f48756f62692041697264726f702048756f626941697264726f702e636f6d0000602082015281565b336000818152600160209081526040808320600160a060020a038716808552908352818420869055815186815291519394909390927f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925928290030190a35060015b92915050565b60035481565b600160a060020a03831660008181526001602090815260408083203384528252808320549383529082905281205490919083118015906103b05750828110155b80156103d65750600160a060020a03841660009081526020819052604090205483810110155b1561049157600160a060020a038085166000908152602081905260408082208054870190559187168152208054849003905560001981101561043d57600160a060020a03851660009081526001602090815260408083203384529091529020805484900390555b83600160a060020a031685600160a060020a03167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef856040518082815260200191505060405180910390a360019150610496565b600091505b509392505050565b601281565b50683635c9adc5dea0000090565b60408051808201909152601081527f48756f626941697264726f702e636f6d00000000000000000000000000000000602082015281565b3360009081526020819052604081205482118015906105215750600160a060020a03831660009081526020819052604090205482810110155b15610591573360008181526020818152604080832080548790039055600160a060020a03871680845292819020805487019055805186815290519293927fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef929181900390910190a3506001610364565b506000610364565b6000805b83518110156104965783818151811015156105b457fe5b90602001906020020151600160a060020a031685600160a060020a03167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef856040518082815260200191505060405180910390a360010161059d565b600160a060020a039182166000908152600160209081526040808320939094168252919091522054905600a165627a7a723058206370382ff36ca6983504d4aabe8ad4b9349b0b2ed7e214d04e367257172fa74e0029

bzzr://6370382ff36ca6983504d4aabe8ad4b9349b0b2ed7e214d04e367257172fa74e