Transactions
Token Transfers
Tokens
Internal Transactions
Coin Balance History
Logs
Code
Read Contract
Write Contract
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- DaiJoin
- Optimization enabled
- false
- Compiler version
- v0.5.12+commit.7709ece9
- EVM Version
- default
- Verified at
- 2024-04-04T20:44:38.738367Z
Constructor Arguments
0x00000000000000000000000035d1b3f3d7966a1dfe207aa4514c12a259a0492b0000000000000000000000006b175474e89094c44da98b954eedeac495271d0f
Arg [0] (address) : 0x35d1b3f3d7966a1dfe207aa4514c12a259a0492b
Arg [1] (address) : 0x6b175474e89094c44da98b954eedeac495271d0f
Contract source code
/**
*Submitted for verification at Etherscan.io on 2019-11-14
*/
// hevm: flattened sources of /nix/store/8xb41r4qd0cjb63wcrxf1qmfg88p0961-dss-6fd7de0/src/join.sol
pragma solidity =0.5.12;
////// /nix/store/8xb41r4qd0cjb63wcrxf1qmfg88p0961-dss-6fd7de0/src/lib.sol
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
/* pragma solidity 0.5.12; */
contract LibNote {
event LogNote(
bytes4 indexed sig,
address indexed usr,
bytes32 indexed arg1,
bytes32 indexed arg2,
bytes data
) anonymous;
modifier note {
_;
assembly {
// log an 'anonymous' event with a constant 6 words of calldata
// and four indexed topics: selector, caller, arg1 and arg2
let mark := msize // end of memory ensures zero
mstore(0x40, add(mark, 288)) // update free memory pointer
mstore(mark, 0x20) // bytes type data offset
mstore(add(mark, 0x20), 224) // bytes size (padded)
calldatacopy(add(mark, 0x40), 0, 224) // bytes payload
log4(mark, 288, // calldata
shl(224, shr(224, calldataload(0))), // msg.sig
caller, // msg.sender
calldataload(4), // arg1
calldataload(36) // arg2
)
}
}
}
////// /nix/store/8xb41r4qd0cjb63wcrxf1qmfg88p0961-dss-6fd7de0/src/join.sol
/// join.sol -- Basic token adapters
// Copyright (C) 2018 Rain <rainbreak@riseup.net>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
/* pragma solidity 0.5.12; */
/* import "./lib.sol"; */
contract GemLike {
function decimals() public view returns (uint);
function transfer(address,uint) external returns (bool);
function transferFrom(address,address,uint) external returns (bool);
}
contract DSTokenLike {
function mint(address,uint) external;
function burn(address,uint) external;
}
contract VatLike {
function slip(bytes32,address,int) external;
function move(address,address,uint) external;
}
/*
Here we provide *adapters* to connect the Vat to arbitrary external
token implementations, creating a bounded context for the Vat. The
adapters here are provided as working examples:
- `GemJoin`: For well behaved ERC20 tokens, with simple transfer
semantics.
- `ETHJoin`: For native Ether.
- `DaiJoin`: For connecting internal Dai balances to an external
`DSToken` implementation.
In practice, adapter implementations will be varied and specific to
individual collateral types, accounting for different transfer
semantics and token standards.
Adapters need to implement two basic methods:
- `join`: enter collateral into the system
- `exit`: remove collateral from the system
*/
contract GemJoin is LibNote {
// --- Auth ---
mapping (address => uint) public wards;
function rely(address usr) external note auth { wards[usr] = 1; }
function deny(address usr) external note auth { wards[usr] = 0; }
modifier auth {
require(wards[msg.sender] == 1, "GemJoin/not-authorized");
_;
}
VatLike public vat;
bytes32 public ilk;
GemLike public gem;
uint public dec;
uint public live; // Access Flag
constructor(address vat_, bytes32 ilk_, address gem_) public {
wards[msg.sender] = 1;
live = 1;
vat = VatLike(vat_);
ilk = ilk_;
gem = GemLike(gem_);
dec = gem.decimals();
}
function cage() external note auth {
live = 0;
}
function join(address usr, uint wad) external note {
require(live == 1, "GemJoin/not-live");
require(int(wad) >= 0, "GemJoin/overflow");
vat.slip(ilk, usr, int(wad));
require(gem.transferFrom(msg.sender, address(this), wad), "GemJoin/failed-transfer");
}
function exit(address usr, uint wad) external note {
require(wad <= 2 ** 255, "GemJoin/overflow");
vat.slip(ilk, msg.sender, -int(wad));
require(gem.transfer(usr, wad), "GemJoin/failed-transfer");
}
}
contract ETHJoin is LibNote {
// --- Auth ---
mapping (address => uint) public wards;
function rely(address usr) external note auth { wards[usr] = 1; }
function deny(address usr) external note auth { wards[usr] = 0; }
modifier auth {
require(wards[msg.sender] == 1, "ETHJoin/not-authorized");
_;
}
VatLike public vat;
bytes32 public ilk;
uint public live; // Access Flag
constructor(address vat_, bytes32 ilk_) public {
wards[msg.sender] = 1;
live = 1;
vat = VatLike(vat_);
ilk = ilk_;
}
function cage() external note auth {
live = 0;
}
function join(address usr) external payable note {
require(live == 1, "ETHJoin/not-live");
require(int(msg.value) >= 0, "ETHJoin/overflow");
vat.slip(ilk, usr, int(msg.value));
}
function exit(address payable usr, uint wad) external note {
require(int(wad) >= 0, "ETHJoin/overflow");
vat.slip(ilk, msg.sender, -int(wad));
usr.transfer(wad);
}
}
contract DaiJoin is LibNote {
// --- Auth ---
mapping (address => uint) public wards;
function rely(address usr) external note auth { wards[usr] = 1; }
function deny(address usr) external note auth { wards[usr] = 0; }
modifier auth {
require(wards[msg.sender] == 1, "DaiJoin/not-authorized");
_;
}
VatLike public vat;
DSTokenLike public dai;
uint public live; // Access Flag
constructor(address vat_, address dai_) public {
wards[msg.sender] = 1;
live = 1;
vat = VatLike(vat_);
dai = DSTokenLike(dai_);
}
function cage() external note auth {
live = 0;
}
uint constant ONE = 10 ** 27;
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x);
}
function join(address usr, uint wad) external note {
vat.move(address(this), usr, mul(ONE, wad));
dai.burn(msg.sender, wad);
}
function exit(address usr, uint wad) external note {
require(live == 1, "DaiJoin/not-live");
vat.move(msg.sender, address(this), mul(ONE, wad));
dai.mint(usr, wad);
}
}
Contract ABI
[{"type":"constructor","stateMutability":"nonpayable","payable":false,"inputs":[{"type":"address","name":"vat_","internalType":"address"},{"type":"address","name":"dai_","internalType":"address"}]},{"type":"event","name":"LogNote","inputs":[{"type":"bytes4","name":"sig","internalType":"bytes4","indexed":true},{"type":"address","name":"usr","internalType":"address","indexed":true},{"type":"bytes32","name":"arg1","internalType":"bytes32","indexed":true},{"type":"bytes32","name":"arg2","internalType":"bytes32","indexed":true},{"type":"bytes","name":"data","internalType":"bytes","indexed":false}],"anonymous":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"cage","inputs":[],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"contract DSTokenLike"}],"name":"dai","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"deny","inputs":[{"type":"address","name":"usr","internalType":"address"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"exit","inputs":[{"type":"address","name":"usr","internalType":"address"},{"type":"uint256","name":"wad","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"join","inputs":[{"type":"address","name":"usr","internalType":"address"},{"type":"uint256","name":"wad","internalType":"uint256"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"live","inputs":[],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"rely","inputs":[{"type":"address","name":"usr","internalType":"address"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":"","internalType":"contract VatLike"}],"name":"vat","inputs":[],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"wards","inputs":[{"type":"address","name":"","internalType":"address"}],"constant":true}]
Contract Creation Code
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 ByteCode
0x608060405234801561001057600080fd5b50600436106100935760003560e01c8063957aa58c11610066578063957aa58c1461017e5780639c52a7f11461019c578063bf353dbb146101e0578063ef693bed14610238578063f4b9fa751461028657610093565b806336569e77146100985780633b4da69f146100e257806365fae35e146101305780636924500914610174575b600080fd5b6100a06102d0565b604051808273ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b61012e600480360360408110156100f857600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803590602001909291905050506102f6565b005b6101726004803603602081101561014657600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff1690602001909291905050506104f8565b005b61017c610626565b005b610186610717565b6040518082815260200191505060405180910390f35b6101de600480360360208110156101b257600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919050505061071d565b005b610222600480360360208110156101f657600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919050505061084b565b6040518082815260200191505060405180910390f35b6102846004803603604081101561024e57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050610863565b005b61028e610add565b604051808273ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b600160009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1681565b600160009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1663bb35783b308461034c6b033b2e3c9fd0803ce800000086610b03565b6040518463ffffffff1660e01b8152600401808473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020018373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020018281526020019350505050600060405180830381600087803b1580156103e857600080fd5b505af11580156103fc573d6000803e3d6000fd5b50505050600260009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16639dc29fac33836040518363ffffffff1660e01b8152600401808373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200182815260200192505050600060405180830381600087803b1580156104a957600080fd5b505af11580156104bd573d6000803e3d6000fd5b505050505961012081016040526020815260e0602082015260e0600060408301376024356004353360003560e01c60e01b61012085a4505050565b60016000803373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002054146105ac576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260168152602001807f4461694a6f696e2f6e6f742d617574686f72697a65640000000000000000000081525060200191505060405180910390fd5b60016000808373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020819055505961012081016040526020815260e0602082015260e0600060408301376024356004353360003560e01c60e01b61012085a45050565b60016000803373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002054146106da576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260168152602001807f4461694a6f696e2f6e6f742d617574686f72697a65640000000000000000000081525060200191505060405180910390fd5b60006003819055505961012081016040526020815260e0602082015260e0600060408301376024356004353360003560e01c60e01b61012085a450565b60035481565b60016000803373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002054146107d1576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260168152602001807f4461694a6f696e2f6e6f742d617574686f72697a65640000000000000000000081525060200191505060405180910390fd5b60008060008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020819055505961012081016040526020815260e0602082015260e0600060408301376024356004353360003560e01c60e01b61012085a45050565b60006020528060005260406000206000915090505481565b6001600354146108db576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260108152602001807f4461694a6f696e2f6e6f742d6c6976650000000000000000000000000000000081525060200191505060405180910390fd5b600160009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1663bb35783b33306109316b033b2e3c9fd0803ce800000086610b03565b6040518463ffffffff1660e01b8152600401808473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020018373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020018281526020019350505050600060405180830381600087803b1580156109cd57600080fd5b505af11580156109e1573d6000803e3d6000fd5b50505050600260009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff166340c10f1983836040518363ffffffff1660e01b8152600401808373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200182815260200192505050600060405180830381600087803b158015610a8e57600080fd5b505af1158015610aa2573d6000803e3d6000fd5b505050505961012081016040526020815260e0602082015260e0600060408301376024356004353360003560e01c60e01b61012085a4505050565b600260009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1681565b600080821480610b205750828283850292508281610b1d57fe5b04145b610b2957600080fd5b9291505056fea265627a7a7231582073556d6c1e4fe23e478f0dc378056d7722545a3e43c977fa340ddc81d62345c864736f6c634300050c0032