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0x4fd39C9E151e50580779bd04B1f7eCc310079fd3
 

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Latest 25 internal transactions (View All)

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Parent Txn Hash Block From To Value
1156267662024-02-02 5:38:2975 days ago1706852309
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0.00349552 ETH
1156267662024-02-02 5:38:2975 days ago1706852309
0x4fd39C9E...310079fd3
0.00349552 ETH
1156261222024-02-02 5:17:0175 days ago1706851021
0x4fd39C9E...310079fd3
0.0087047 ETH
1156261222024-02-02 5:17:0175 days ago1706851021
0x4fd39C9E...310079fd3
0.0087047 ETH
1156257592024-02-02 5:04:5575 days ago1706850295
0x4fd39C9E...310079fd3
0.09320836 ETH
1156257592024-02-02 5:04:5575 days ago1706850295
0x4fd39C9E...310079fd3
0.09320836 ETH
1156257182024-02-02 5:03:3375 days ago1706850213
0x4fd39C9E...310079fd3
0.91616695 ETH
1156257182024-02-02 5:03:3375 days ago1706850213
0x4fd39C9E...310079fd3
0.91616695 ETH
1156255662024-02-02 4:58:2975 days ago1706849909
0x4fd39C9E...310079fd3
0.001 ETH
1156255662024-02-02 4:58:2975 days ago1706849909
0x4fd39C9E...310079fd3
0.001 ETH
1156253032024-02-02 4:49:4375 days ago1706849383
0x4fd39C9E...310079fd3
0.22 ETH
1156253032024-02-02 4:49:4375 days ago1706849383
0x4fd39C9E...310079fd3
0.22 ETH
1156249422024-02-02 4:37:4176 days ago1706848661
0x4fd39C9E...310079fd3
0.4749 ETH
1156249422024-02-02 4:37:4176 days ago1706848661
0x4fd39C9E...310079fd3
0.4749 ETH
1156248612024-02-02 4:34:5976 days ago1706848499
0x4fd39C9E...310079fd3
0.0005 ETH
1156248612024-02-02 4:34:5976 days ago1706848499
0x4fd39C9E...310079fd3
0.0005 ETH
1156244512024-02-02 4:21:1976 days ago1706847679
0x4fd39C9E...310079fd3
0.078 ETH
1156244512024-02-02 4:21:1976 days ago1706847679
0x4fd39C9E...310079fd3
0.078 ETH
1156242832024-02-02 4:15:4376 days ago1706847343
0x4fd39C9E...310079fd3
0.1105155 ETH
1156242832024-02-02 4:15:4376 days ago1706847343
0x4fd39C9E...310079fd3
0.1105155 ETH
1156242792024-02-02 4:15:3576 days ago1706847335
0x4fd39C9E...310079fd3
0.11059 ETH
1156242792024-02-02 4:15:3576 days ago1706847335
0x4fd39C9E...310079fd3
0.11059 ETH
1156242732024-02-02 4:15:2376 days ago1706847323
0x4fd39C9E...310079fd3
0.11058 ETH
1156242732024-02-02 4:15:2376 days ago1706847323
0x4fd39C9E...310079fd3
0.11058 ETH
1156242422024-02-02 4:14:2176 days ago1706847261
0x4fd39C9E...310079fd3
0.004 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
SquidMulticall

Compiler Version
v0.8.17+commit.8df45f5f

Optimization Enabled:
Yes with 99999 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 6 : SquidMulticall.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

import {ISquidMulticall} from "./interfaces/ISquidMulticall.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC721Receiver} from "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import {IERC1155Receiver} from "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol";

contract SquidMulticall is ISquidMulticall, IERC721Receiver, IERC1155Receiver {
    bytes4 constant public ERC165_INTERFACE_ID = 0x01ffc9a7;
    bytes4 constant public ERC721_TOKENRECEIVER_INTERFACE_ID = 0x150b7a02;
    bytes4 constant public ERC1155_TOKENRECEIVER_INTERFACE_ID = 0x4e2312e0;

    bool private isRunning;

    error TransferFailed();

    function run(Call[] calldata calls) external payable {
        // Prevents reentrancy
        if (isRunning) revert AlreadyRunning();
        isRunning = true;

        for (uint256 i = 0; i < calls.length; i++) {
            Call memory call = calls[i];

            if (call.callType == CallType.FullTokenBalance) {
                (address token, uint256 amountParameterPosition) = abi.decode(call.payload, (address, uint256));
                uint256 amount = IERC20(token).balanceOf(address(this));
                _setCallDataParameter(call.callData, amountParameterPosition, amount);
            } else if (call.callType == CallType.FullNativeBalance) {
                call.value = address(this).balance;
            } else if (call.callType == CallType.CollectTokenBalance) {
                address token = abi.decode(call.payload, (address));
                _safeTransferFrom(token, msg.sender, IERC20(token).balanceOf(msg.sender));
                continue;
            }

            (bool success, bytes memory data) = call.target.call{value: call.value}(call.callData);
            if (!success) revert CallFailed(i, data);
        }

        isRunning = false;
    }

    function supportsInterface(bytes4 interfaceId) external pure returns (bool) {
        return interfaceId == ERC1155_TOKENRECEIVER_INTERFACE_ID ||
            interfaceId == ERC721_TOKENRECEIVER_INTERFACE_ID ||
            interfaceId == ERC165_INTERFACE_ID;
    }

    function _safeTransferFrom(address token, address from, uint256 amount) private {
        (bool success, bytes memory returnData) = token.call(
            abi.encodeWithSelector(IERC20.transferFrom.selector, from, address(this), amount)
        );
        bool transferred = success && (returnData.length == uint256(0) || abi.decode(returnData, (bool)));
        if (!transferred || token.code.length == 0) revert TransferFailed();
    }

    function _setCallDataParameter(bytes memory callData, uint256 parameterPosition, uint256 value) private pure {
        assembly {
            // 36 bytes shift because 32 for prefix + 4 for selector
            mstore(add(callData, add(36, mul(parameterPosition, 32))), value)
        }
    }

    function onERC721Received(
        address,
        address,
        uint256,
        bytes calldata
    ) external pure returns (bytes4) {
        return IERC721Receiver.onERC721Received.selector;
    }

    function onERC1155Received(address, address, uint256, uint256, bytes calldata) external pure returns (bytes4) {
        return IERC1155Receiver.onERC1155Received.selector;
    }

    function onERC1155BatchReceived(address, address, uint256[] calldata, uint256[] calldata, bytes calldata) external pure returns (bytes4) {
        return IERC1155Receiver.onERC1155BatchReceived.selector;
    }

    // Required to enable ETH reception with .transfer or .send
    receive() external payable {}
}

File 2 of 6 : IERC1155Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev _Available since v3.1._
 */
interface IERC1155Receiver is IERC165 {
    /**
     * @dev Handles the receipt of a single ERC1155 token type. This function is
     * called at the end of a `safeTransferFrom` after the balance has been updated.
     *
     * NOTE: To accept the transfer, this must return
     * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
     * (i.e. 0xf23a6e61, or its own function selector).
     *
     * @param operator The address which initiated the transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param id The ID of the token being transferred
     * @param value The amount of tokens being transferred
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
     */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
     * @dev Handles the receipt of a multiple ERC1155 token types. This function
     * is called at the end of a `safeBatchTransferFrom` after the balances have
     * been updated.
     *
     * NOTE: To accept the transfer(s), this must return
     * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
     * (i.e. 0xbc197c81, or its own function selector).
     *
     * @param operator The address which initiated the batch transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param ids An array containing ids of each token being transferred (order and length must match values array)
     * @param values An array containing amounts of each token being transferred (order and length must match ids array)
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
     */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

File 3 of 6 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

File 4 of 6 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

File 5 of 6 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

File 6 of 6 : ISquidMulticall.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

interface ISquidMulticall {
    enum CallType {
        Default,
        FullTokenBalance,
        FullNativeBalance,
        CollectTokenBalance
    }

    struct Call {
        CallType callType;
        address target;
        uint256 value;
        bytes callData;
        bytes payload;
    }

    error AlreadyRunning();
    error CallFailed(uint256 callPosition, bytes reason);

    function run(Call[] calldata calls) external payable;
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 99999
  },
  "viaIR": true,
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[],"name":"AlreadyRunning","type":"error"},{"inputs":[{"internalType":"uint256","name":"callPosition","type":"uint256"},{"internalType":"bytes","name":"reason","type":"bytes"}],"name":"CallFailed","type":"error"},{"inputs":[],"name":"TransferFailed","type":"error"},{"inputs":[],"name":"ERC1155_TOKENRECEIVER_INTERFACE_ID","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ERC165_INTERFACE_ID","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ERC721_TOKENRECEIVER_INTERFACE_ID","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256[]","name":"","type":"uint256[]"},{"internalType":"uint256[]","name":"","type":"uint256[]"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC1155BatchReceived","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC1155Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"pure","type":"function"},{"inputs":[{"components":[{"internalType":"enum ISquidMulticall.CallType","name":"callType","type":"uint8"},{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"bytes","name":"payload","type":"bytes"}],"internalType":"struct ISquidMulticall.Call[]","name":"calls","type":"tuple[]"}],"name":"run","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"stateMutability":"payable","type":"receive"}]

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