smartbugs-curated/dataset/unchecked_low_level_calls/0xa1fceeff3acc57d257b917e30...

35 lines
860 B
Solidity

/*
* @source: etherscan.io
* @author: -
* @vulnerable_at_lines: 31
*/
pragma solidity ^0.4.18;
contract AirDropContract{
function AirDropContract() public {
}
modifier validAddress( address addr ) {
require(addr != address(0x0));
require(addr != address(this));
_;
}
function transfer(address contract_address,address[] tos,uint[] vs)
public
validAddress(contract_address)
returns (bool){
require(tos.length > 0);
require(vs.length > 0);
require(tos.length == vs.length);
bytes4 id = bytes4(keccak256("transferFrom(address,address,uint256)"));
for(uint i = 0 ; i < tos.length; i++){
// <yes> <report> UNCHECKED_LL_CALLS
contract_address.call(id, msg.sender, tos[i], vs[i]);
}
return true;
}
}