Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- MultiSendCallOnly
- Optimization enabled
- false
- Compiler version
- v0.7.6+commit.7338295f
- EVM Version
- default
- Verified at
- 2024-05-20T14:36:16.935548Z
contracts/libraries/MultiSendCallOnly.sol
// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /** * @title Multi Send Call Only - Allows to batch multiple transactions into one, but only calls * @notice The guard logic is not required here as this contract doesn't support nested delegate calls * @author Stefan George - @Georgi87 * @author Richard Meissner - @rmeissner */ contract MultiSendCallOnly { /** * @dev Sends multiple transactions and reverts all if one fails. * @param transactions Encoded transactions. Each transaction is encoded as a packed bytes of * operation has to be uint8(0) in this version (=> 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 * @notice The code is for most part the same as the normal MultiSend (to keep compatibility), * but reverts if a transaction tries to use a delegatecall. * @notice This method is payable as delegatecalls keep the msg.value from the previous call * If the calling method (e.g. execTransaction) received ETH this would revert otherwise */ function multiSend(bytes memory transactions) public payable { /* solhint-disable no-inline-assembly */ assembly { let length := mload(transactions) let i := 0x20 for { // Pre block is not used in "while mode" } lt(i, length) { // Post block is not used in "while mode" } { // 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)))) // Defaults `to` to `address(this)` if `address(0)` is provided. to := or(to, mul(iszero(to), address())) // 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) } // This version does not allow delegatecalls case 1 { revert(0, 0) } if eq(success, 0) { let errorLength := returndatasize() returndatacopy(0, 0, errorLength) revert(0, errorLength) } // Next entry starts at 85 byte + data length i := add(i, add(0x55, dataLength)) } } /* solhint-enable no-inline-assembly */ } }
Compiler Settings
{"outputSelection":{"*":{"*":["*"],"":["*"]}},"optimizer":{"runs":200,"enabled":false},"metadata":{"useLiteralContent":true},"libraries":{}}
Contract ABI
[{"type":"function","stateMutability":"payable","outputs":[],"name":"multiSend","inputs":[{"type":"bytes","name":"transactions","internalType":"bytes"}]}]
Contract Creation Code
0x608060405234801561001057600080fd5b506101a8806100206000396000f3fe60806040526004361061001e5760003560e01c80638d80ff0a14610023575b600080fd5b6100dc6004803603602081101561003957600080fd5b810190808035906020019064010000000081111561005657600080fd5b82018360208201111561006857600080fd5b8035906020019184600183028401116401000000008311171561008a57600080fd5b91908080601f016020809104026020016040519081016040528093929190818152602001838380828437600081840152601f19601f8201169050808301925050505050505091929192905050506100de565b005b805160205b8181101561016d578083015160f81c6001820184015160601c3081150281179050601583018501516035840186015160558501870160008560008114610130576001811461014057610145565b6000808585888a5af19150610145565b600080fd5b50600081141561015a573d806000803e806000fd5b82605501870196505050505050506100e3565b50505056fea264697066735822122011920990f3608ffd97dd4e6625e354a72d4f0660ee74488b7a60e603eefb285a64736f6c63430007060033
Deployed ByteCode
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