Contract 0xd1b160Ee570632ac402Efb230d720669604918e8

/**
 *Submitted for verification at FtmScan.com on 2021-05-18
*/

pragma solidity >=0.5.0 <0.7.0;


/// @title Multi Send - Allows to batch multiple transactions into one.
/// @author Nick Dodson - <[email protected]>
/// @author Gonçalo Sá - <[email protected]>
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract MultiSend {

    bytes32 constant private GUARD_VALUE = keccak256("multisend.guard.bytes32");

    bytes32 guard;

    constructor() public {
        guard = GUARD_VALUE;
    }

    /// @dev Sends multiple transactions and reverts all if one fails.
    /// @param transactions Encoded transactions. Each transaction is encoded as a packed bytes of
    ///                     operation as a uint8 with 0 for a call or 1 for a delegatecall (=> 1 byte),
    ///                     to as a address (=> 20 bytes),
    ///                     value as a uint256 (=> 32 bytes),
    ///                     data length as a uint256 (=> 32 bytes),
    ///                     data as bytes.
    ///                     see abi.encodePacked for more information on packed encoding
    function multiSend(bytes memory transactions)
        public
    {
        require(guard != GUARD_VALUE, "MultiSend should only be called via delegatecall");
        // solium-disable-next-line security/no-inline-assembly
        assembly {
            let length := mload(transactions)
            let i := 0x20
            for { } lt(i, length) { } {
                // First byte of the data is the operation.
                // We shift by 248 bits (256 - 8 [operation byte]) it right since mload will always load 32 bytes (a word).
                // This will also zero out unused data.
                let operation := shr(0xf8, mload(add(transactions, i)))
                // We offset the load address by 1 byte (operation byte)
                // We shift it right by 96 bits (256 - 160 [20 address bytes]) to right-align the data and zero out unused data.
                let to := shr(0x60, mload(add(transactions, add(i, 0x01))))
                // We offset the load address by 21 byte (operation byte + 20 address bytes)
                let value := mload(add(transactions, add(i, 0x15)))
                // We offset the load address by 53 byte (operation byte + 20 address bytes + 32 value bytes)
                let dataLength := mload(add(transactions, add(i, 0x35)))
                // We offset the load address by 85 byte (operation byte + 20 address bytes + 32 value bytes + 32 data length bytes)
                let data := add(transactions, add(i, 0x55))
                let success := 0
                switch operation
                case 0 { success := call(gas, to, value, data, dataLength, 0, 0) }
                case 1 { success := delegatecall(gas, to, data, dataLength, 0, 0) }
                if eq(success, 0) { revert(0, 0) }
                // Next entry starts at 85 byte + data length
                i := add(i, add(0x55, dataLength))
            }
        }
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"constant":false,"inputs":[{"internalType":"bytes","name":"transactions","type":"bytes"}],"name":"multiSend","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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