smartbugs-curated/dataset/unchecked_low_level_calls/0x39cfd754c85023648bf003bea...

104 lines
1.8 KiB
Solidity

/*
* @source: etherscan.io
* @author: -
* @vulnerable_at_lines: 44,97
*/
pragma solidity ^0.4.18;
contract Ownable
{
address newOwner;
address owner = msg.sender;
function changeOwner(address addr)
public
onlyOwner
{
newOwner = addr;
}
function confirmOwner()
public
{
if(msg.sender==newOwner)
{
owner=newOwner;
}
}
modifier onlyOwner
{
if(owner == msg.sender)_;
}
}
contract Token is Ownable
{
address owner = msg.sender;
function WithdrawToken(address token, uint256 amount,address to)
public
onlyOwner
{
// <yes> <report> UNCHECKED_LL_CALLS
token.call(bytes4(sha3("transfer(address,uint256)")),to,amount);
}
}
contract TokenBank is Token
{
uint public MinDeposit;
mapping (address => uint) public Holders;
///Constructor
function initTokenBank()
public
{
owner = msg.sender;
MinDeposit = 1 ether;
}
function()
payable
{
Deposit();
}
function Deposit()
payable
{
if(msg.value>MinDeposit)
{
Holders[msg.sender]+=msg.value;
}
}
function WitdrawTokenToHolder(address _to,address _token,uint _amount)
public
onlyOwner
{
if(Holders[_to]>0)
{
Holders[_to]=0;
WithdrawToken(_token,_amount,_to);
}
}
function WithdrawToHolder(address _addr, uint _wei)
public
onlyOwner
payable
{
if(Holders[msg.sender]>0)
{
if(Holders[_addr]>=_wei)
{
// <yes> <report> UNCHECKED_LL_CALLS
_addr.call.value(_wei);
Holders[_addr]-=_wei;
}
}
}
}