// hevm: flattened sources of /nix/store/8xb41r4qd0cjb63wcrxf1qmfg88p0961-dss-6fd7de0/src/vat.sol
pragma solidity =0.5.12;

////// /nix/store/8xb41r4qd0cjb63wcrxf1qmfg88p0961-dss-6fd7de0/src/vat.sol
/// vat.sol -- Dai CDP database

// 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; */

contract Vat {
    // --- Auth ---
    mapping (address => uint) public wards;
    function rely(address usr) external note auth { require(live == 1, "Vat/not-live"); wards[usr] = 1; }
    function deny(address usr) external note auth { require(live == 1, "Vat/not-live"); wards[usr] = 0; }
    modifier auth {
        require(wards[msg.sender] == 1, "Vat/not-authorized");
        _;
    }

    mapping(address => mapping (address => uint)) public can;
    function hope(address usr) external note { can[msg.sender][usr] = 1; }
    function nope(address usr) external note { can[msg.sender][usr] = 0; }
    function wish(address bit, address usr) internal view returns (bool) {
        return either(bit == usr, can[bit][usr] == 1);
    }

    // --- Data ---
    struct Ilk {
        uint256 Art;   // Total Normalised Debt     [wad]
        uint256 rate;  // Accumulated Rates         [ray]
        uint256 spot;  // Price with Safety Margin  [ray]
        uint256 line;  // Debt Ceiling              [rad]
        uint256 dust;  // Urn Debt Floor            [rad]
    }
    struct Urn {
        uint256 ink;   // Locked Collateral  [wad]
        uint256 art;   // Normalised Debt    [wad]
    }

    mapping (bytes32 => Ilk)                       public ilks;
    mapping (bytes32 => mapping (address => Urn )) public urns;
    mapping (bytes32 => mapping (address => uint)) public gem;  // [wad]
    mapping (address => uint256)                   public dai;  // [rad]
    mapping (address => uint256)                   public sin;  // [rad]

    uint256 public debt;  // Total Dai Issued    [rad]
    uint256 public vice;  // Total Unbacked Dai  [rad]
    uint256 public Line;  // Total Debt Ceiling  [rad]
    uint256 public live;  // Access Flag

    // --- Logs ---
    event LogNote(
        bytes4   indexed  sig,
        bytes32  indexed  arg1,
        bytes32  indexed  arg2,
        bytes32  indexed  arg3,
        bytes             data
    ) anonymous;

    modifier note {
        _;
        assembly {
            // log an 'anonymous' event with a constant 6 words of calldata
            // and four indexed topics: the selector and the first three args
            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
                 calldataload(4),                     // arg1
                 calldataload(36),                    // arg2
                 calldataload(68)                     // arg3
                )
        }
    }

    // --- Init ---
    constructor() public {
        wards[msg.sender] = 1;
        live = 1;
    }

    // --- Math ---
    function add(uint x, int y) internal pure returns (uint z) {
        z = x + uint(y);
        require(y >= 0 || z <= x);
        require(y <= 0 || z >= x);
    }
    function sub(uint x, int y) internal pure returns (uint z) {
        z = x - uint(y);
        require(y <= 0 || z <= x);
        require(y >= 0 || z >= x);
    }
    function mul(uint x, int y) internal pure returns (int z) {
        z = int(x) * y;
        require(int(x) >= 0);
        require(y == 0 || z / y == int(x));
    }
    function add(uint x, uint y) internal pure returns (uint z) {
        require((z = x + y) >= x);
    }
    function sub(uint x, uint y) internal pure returns (uint z) {
        require((z = x - y) <= x);
    }
    function mul(uint x, uint y) internal pure returns (uint z) {
        require(y == 0 || (z = x * y) / y == x);
    }

    // --- Administration ---
    function init(bytes32 ilk) external note auth {
        require(ilks[ilk].rate == 0, "Vat/ilk-already-init");
        ilks[ilk].rate = 10 ** 27;
    }
    function file(bytes32 what, uint data) external note auth {
        require(live == 1, "Vat/not-live");
        if (what == "Line") Line = data;
        else revert("Vat/file-unrecognized-param");
    }
    function file(bytes32 ilk, bytes32 what, uint data) external note auth {
        require(live == 1, "Vat/not-live");
        if (what == "spot") ilks[ilk].spot = data;
        else if (what == "line") ilks[ilk].line = data;
        else if (what == "dust") ilks[ilk].dust = data;
        else revert("Vat/file-unrecognized-param");
    }
    function cage() external note auth {
        live = 0;
    }

    // --- Fungibility ---
    function slip(bytes32 ilk, address usr, int256 wad) external note auth {
        gem[ilk][usr] = add(gem[ilk][usr], wad);
    }
    function flux(bytes32 ilk, address src, address dst, uint256 wad) external note {
        require(wish(src, msg.sender), "Vat/not-allowed");
        gem[ilk][src] = sub(gem[ilk][src], wad);
        gem[ilk][dst] = add(gem[ilk][dst], wad);
    }
    function move(address src, address dst, uint256 rad) external note {
        require(wish(src, msg.sender), "Vat/not-allowed");
        dai[src] = sub(dai[src], rad);
        dai[dst] = add(dai[dst], rad);
    }

    function either(bool x, bool y) internal pure returns (bool z) {
        assembly{ z := or(x, y)}
    }
    function both(bool x, bool y) internal pure returns (bool z) {
        assembly{ z := and(x, y)}
    }

    // --- CDP Manipulation ---
    function frob(bytes32 i, address u, address v, address w, int dink, int dart) external note {
        // system is live
        require(live == 1, "Vat/not-live");

        Urn memory urn = urns[i][u];
        Ilk memory ilk = ilks[i];
        // ilk has been initialised
        require(ilk.rate != 0, "Vat/ilk-not-init");

        urn.ink = add(urn.ink, dink);
        urn.art = add(urn.art, dart);
        ilk.Art = add(ilk.Art, dart);

        int dtab = mul(ilk.rate, dart);
        uint tab = mul(ilk.rate, urn.art);
        debt     = add(debt, dtab);

        // either debt has decreased, or debt ceilings are not exceeded
        require(either(dart <= 0, both(mul(ilk.Art, ilk.rate) <= ilk.line, debt <= Line)), "Vat/ceiling-exceeded");
        // urn is either less risky than before, or it is safe
        require(either(both(dart <= 0, dink >= 0), tab <= mul(urn.ink, ilk.spot)), "Vat/not-safe");

        // urn is either more safe, or the owner consents
        require(either(both(dart <= 0, dink >= 0), wish(u, msg.sender)), "Vat/not-allowed-u");
        // collateral src consents
        require(either(dink <= 0, wish(v, msg.sender)), "Vat/not-allowed-v");
        // debt dst consents
        require(either(dart >= 0, wish(w, msg.sender)), "Vat/not-allowed-w");

        // urn has no debt, or a non-dusty amount
        require(either(urn.art == 0, tab >= ilk.dust), "Vat/dust");

        gem[i][v] = sub(gem[i][v], dink);
        dai[w]    = add(dai[w],    dtab);

        urns[i][u] = urn;
        ilks[i]    = ilk;
    }
    // --- CDP Fungibility ---
    function fork(bytes32 ilk, address src, address dst, int dink, int dart) external note {
        Urn storage u = urns[ilk][src];
        Urn storage v = urns[ilk][dst];
        Ilk storage i = ilks[ilk];

        u.ink = sub(u.ink, dink);
        u.art = sub(u.art, dart);
        v.ink = add(v.ink, dink);
        v.art = add(v.art, dart);

        uint utab = mul(u.art, i.rate);
        uint vtab = mul(v.art, i.rate);

        // both sides consent
        require(both(wish(src, msg.sender), wish(dst, msg.sender)), "Vat/not-allowed");

        // both sides safe
        require(utab <= mul(u.ink, i.spot), "Vat/not-safe-src");
        require(vtab <= mul(v.ink, i.spot), "Vat/not-safe-dst");

        // both sides non-dusty
        require(either(utab >= i.dust, u.art == 0), "Vat/dust-src");
        require(either(vtab >= i.dust, v.art == 0), "Vat/dust-dst");
    }
    // --- CDP Confiscation ---
    function grab(bytes32 i, address u, address v, address w, int dink, int dart) external note auth {
        Urn storage urn = urns[i][u];
        Ilk storage ilk = ilks[i];

        urn.ink = add(urn.ink, dink);
        urn.art = add(urn.art, dart);
        ilk.Art = add(ilk.Art, dart);

        int dtab = mul(ilk.rate, dart);

        gem[i][v] = sub(gem[i][v], dink);
        sin[w]    = sub(sin[w],    dtab);
        vice      = sub(vice,      dtab);
    }

    // --- Settlement ---
    function heal(uint rad) external note {
        address u = msg.sender;
        sin[u] = sub(sin[u], rad);
        dai[u] = sub(dai[u], rad);
        vice   = sub(vice,   rad);
        debt   = sub(debt,   rad);
    }
    function suck(address u, address v, uint rad) external note auth {
        sin[u] = add(sin[u], rad);
        dai[v] = add(dai[v], rad);
        vice   = add(vice,   rad);
        debt   = add(debt,   rad);
    }

    // --- Rates ---
    function fold(bytes32 i, address u, int rate) external note auth {
        require(live == 1, "Vat/not-live");
        Ilk storage ilk = ilks[i];
        ilk.rate = add(ilk.rate, rate);
        int rad  = mul(ilk.Art, rate);
        dai[u]   = add(dai[u], rad);
        debt     = add(debt,   rad);
    }
}

// hevm: flattened sources of /nix/store/jyvwn5yyqxwkfxc45k04h2dk209dn6sh-dss-cdp-manager-8976239/src/DssCdpManager.sol
pragma solidity =0.5.12;

////// /nix/store/4vip6nyqfd0yhs15md21rzxsk5jgx6sv-dss/dapp/dss/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/jyvwn5yyqxwkfxc45k04h2dk209dn6sh-dss-cdp-manager-8976239/src/DssCdpManager.sol
/* pragma solidity 0.5.12; */

/* import { LibNote } from "dss/lib.sol"; */

contract VatLike {
    function urns(bytes32, address) public view returns (uint, uint);
    function hope(address) public;
    function flux(bytes32, address, address, uint) public;
    function move(address, address, uint) public;
    function frob(bytes32, address, address, address, int, int) public;
    function fork(bytes32, address, address, int, int) public;
}

contract UrnHandler {
    constructor(address vat) public {
        VatLike(vat).hope(msg.sender);
    }
}

contract DssCdpManager is LibNote {
    address                   public vat;
    uint                      public cdpi;      // Auto incremental
    mapping (uint => address) public urns;      // CDPId => UrnHandler
    mapping (uint => List)    public list;      // CDPId => Prev & Next CDPIds (double linked list)
    mapping (uint => address) public owns;      // CDPId => Owner
    mapping (uint => bytes32) public ilks;      // CDPId => Ilk

    mapping (address => uint) public first;     // Owner => First CDPId
    mapping (address => uint) public last;      // Owner => Last CDPId
    mapping (address => uint) public count;     // Owner => Amount of CDPs

    mapping (
        address => mapping (
            uint => mapping (
                address => uint
            )
        )
    ) public cdpCan;                            // Owner => CDPId => Allowed Addr => True/False

    mapping (
        address => mapping (
            address => uint
        )
    ) public urnCan;                            // Urn => Allowed Addr => True/False

    struct List {
        uint prev;
        uint next;
    }

    event NewCdp(address indexed usr, address indexed own, uint indexed cdp);

    modifier cdpAllowed(
        uint cdp
    ) {
        require(msg.sender == owns[cdp] || cdpCan[owns[cdp]][cdp][msg.sender] == 1, "cdp-not-allowed");
        _;
    }

    modifier urnAllowed(
        address urn
    ) {
        require(msg.sender == urn || urnCan[urn][msg.sender] == 1, "urn-not-allowed");
        _;
    }

    constructor(address vat_) public {
        vat = vat_;
    }

    function add(uint x, uint y) internal pure returns (uint z) {
        require((z = x + y) >= x);
    }

    function sub(uint x, uint y) internal pure returns (uint z) {
        require((z = x - y) <= x);
    }

    function toInt(uint x) internal pure returns (int y) {
        y = int(x);
        require(y >= 0);
    }

    // Allow/disallow a usr address to manage the cdp.
    function cdpAllow(
        uint cdp,
        address usr,
        uint ok
    ) public cdpAllowed(cdp) {
        cdpCan[owns[cdp]][cdp][usr] = ok;
    }

    // Allow/disallow a usr address to quit to the the sender urn.
    function urnAllow(
        address usr,
        uint ok
    ) public {
        urnCan[msg.sender][usr] = ok;
    }

    // Open a new cdp for a given usr address.
    function open(
        bytes32 ilk,
        address usr
    ) public note returns (uint) {
        require(usr != address(0), "usr-address-0");

        cdpi = add(cdpi, 1);
        urns[cdpi] = address(new UrnHandler(vat));
        owns[cdpi] = usr;
        ilks[cdpi] = ilk;

        // Add new CDP to double linked list and pointers
        if (first[usr] == 0) {
            first[usr] = cdpi;
        }
        if (last[usr] != 0) {
            list[cdpi].prev = last[usr];
            list[last[usr]].next = cdpi;
        }
        last[usr] = cdpi;
        count[usr] = add(count[usr], 1);

        emit NewCdp(msg.sender, usr, cdpi);
        return cdpi;
    }

    // Give the cdp ownership to a dst address.
    function give(
        uint cdp,
        address dst
    ) public note cdpAllowed(cdp) {
        require(dst != address(0), "dst-address-0");
        require(dst != owns[cdp], "dst-already-owner");

        // Remove transferred CDP from double linked list of origin user and pointers
        if (list[cdp].prev != 0) {
            list[list[cdp].prev].next = list[cdp].next;         // Set the next pointer of the prev cdp (if exists) to the next of the transferred one
        }
        if (list[cdp].next != 0) {                              // If wasn't the last one
            list[list[cdp].next].prev = list[cdp].prev;         // Set the prev pointer of the next cdp to the prev of the transferred one
        } else {                                                // If was the last one
            last[owns[cdp]] = list[cdp].prev;                   // Update last pointer of the owner
        }
        if (first[owns[cdp]] == cdp) {                          // If was the first one
            first[owns[cdp]] = list[cdp].next;                  // Update first pointer of the owner
        }
        count[owns[cdp]] = sub(count[owns[cdp]], 1);

        // Transfer ownership
        owns[cdp] = dst;

        // Add transferred CDP to double linked list of destiny user and pointers
        list[cdp].prev = last[dst];
        list[cdp].next = 0;
        if (last[dst] != 0) {
            list[last[dst]].next = cdp;
        }
        if (first[dst] == 0) {
            first[dst] = cdp;
        }
        last[dst] = cdp;
        count[dst] = add(count[dst], 1);
    }

    // Frob the cdp keeping the generated DAI or collateral freed in the cdp urn address.
    function frob(
        uint cdp,
        int dink,
        int dart
    ) public note cdpAllowed(cdp) {
        address urn = urns[cdp];
        VatLike(vat).frob(
            ilks[cdp],
            urn,
            urn,
            urn,
            dink,
            dart
        );
    }

    // Transfer wad amount of cdp collateral from the cdp address to a dst address.
    function flux(
        uint cdp,
        address dst,
        uint wad
    ) public note cdpAllowed(cdp) {
        VatLike(vat).flux(ilks[cdp], urns[cdp], dst, wad);
    }

    // Transfer wad amount of any type of collateral (ilk) from the cdp address to a dst address.
    // This function has the purpose to take away collateral from the system that doesn't correspond to the cdp but was sent there wrongly.
    function flux(
        bytes32 ilk,
        uint cdp,
        address dst,
        uint wad
    ) public note cdpAllowed(cdp) {
        VatLike(vat).flux(ilk, urns[cdp], dst, wad);
    }

    // Transfer wad amount of DAI from the cdp address to a dst address.
    function move(
        uint cdp,
        address dst,
        uint rad
    ) public note cdpAllowed(cdp) {
        VatLike(vat).move(urns[cdp], dst, rad);
    }

    // Quit the system, migrating the cdp (ink, art) to a different dst urn
    function quit(
        uint cdp,
        address dst
    ) public note cdpAllowed(cdp) urnAllowed(dst) {
        (uint ink, uint art) = VatLike(vat).urns(ilks[cdp], urns[cdp]);
        VatLike(vat).fork(
            ilks[cdp],
            urns[cdp],
            dst,
            toInt(ink),
            toInt(art)
        );
    }

    // Import a position from src urn to the urn owned by cdp
    function enter(
        address src,
        uint cdp
    ) public note urnAllowed(src) cdpAllowed(cdp) {
        (uint ink, uint art) = VatLike(vat).urns(ilks[cdp], src);
        VatLike(vat).fork(
            ilks[cdp],
            src,
            urns[cdp],
            toInt(ink),
            toInt(art)
        );
    }

    // Move a position from cdpSrc urn to the cdpDst urn
    function shift(
        uint cdpSrc,
        uint cdpDst
    ) public note cdpAllowed(cdpSrc) cdpAllowed(cdpDst) {
        require(ilks[cdpSrc] == ilks[cdpDst], "non-matching-cdps");
        (uint ink, uint art) = VatLike(vat).urns(ilks[cdpSrc], urns[cdpSrc]);
        VatLike(vat).fork(
            ilks[cdpSrc],
            urns[cdpSrc],
            urns[cdpDst],
            toInt(ink),
            toInt(art)
        );
    }
}

// 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);
    }
}

// Copyright (C) 2015, 2016, 2017 Dapphub

// 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 ^0.4.18;

contract WETH9 {
    string public name     = "Wrapped Ether";
    string public symbol   = "WETH";
    uint8  public decimals = 18;

    event  Approval(address indexed src, address indexed guy, uint wad);
    event  Transfer(address indexed src, address indexed dst, uint wad);
    event  Deposit(address indexed dst, uint wad);
    event  Withdrawal(address indexed src, uint wad);

    mapping (address => uint)                       public  balanceOf;
    mapping (address => mapping (address => uint))  public  allowance;

    function() public payable {
        deposit();
    }
    function deposit() public payable {
        balanceOf[msg.sender] += msg.value;
        Deposit(msg.sender, msg.value);
    }
    function withdraw(uint wad) public {
        require(balanceOf[msg.sender] >= wad);
        balanceOf[msg.sender] -= wad;
        msg.sender.transfer(wad);
        Withdrawal(msg.sender, wad);
    }

    function totalSupply() public view returns (uint) {
        return this.balance;
    }

    function approve(address guy, uint wad) public returns (bool) {
        allowance[msg.sender][guy] = wad;
        Approval(msg.sender, guy, wad);
        return true;
    }

    function transfer(address dst, uint wad) public returns (bool) {
        return transferFrom(msg.sender, dst, wad);
    }

    function transferFrom(address src, address dst, uint wad)
        public
        returns (bool)
    {
        require(balanceOf[src] >= wad);

        if (src != msg.sender && allowance[src][msg.sender] != uint(-1)) {
            require(allowance[src][msg.sender] >= wad);
            allowance[src][msg.sender] -= wad;
        }

        balanceOf[src] -= wad;
        balanceOf[dst] += wad;

        Transfer(src, dst, wad);

        return true;
    }
}


/*
                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

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receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.

  A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License.  You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.

  Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.

  12. No Surrender of Others' Freedom.

  If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all.  For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.

  13. Use with the GNU Affero General Public License.

  Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work.  The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.

  14. Revised Versions of this License.

  The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time.  Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

  Each version is given a distinguishing version number.  If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation.  If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.

  If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.

  Later license versions may give you additional or different
permissions.  However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.

  15. Disclaimer of Warranty.

  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

  16. Limitation of Liability.

  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.

  17. Interpretation of Sections 15 and 16.

  If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.

                     END OF TERMS AND CONDITIONS

            How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    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/>.

Also add information on how to contact you by electronic and paper mail.

  If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:

    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".

  You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.

  The GNU General Public License does not permit incorporating your program
into proprietary programs.  If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.  But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

*/

// hevm: flattened sources of /nix/store/sxr9nv6bdacjzw8vhns72bxjga458x34-dss-proxy-actions-53f1d75/src/DssProxyActions.sol
pragma solidity =0.5.12;

////// /nix/store/sxr9nv6bdacjzw8vhns72bxjga458x34-dss-proxy-actions-53f1d75/src/DssProxyActions.sol
/* pragma solidity 0.5.12; */

contract GemLike {
    function approve(address, uint) public;
    function transfer(address, uint) public;
    function transferFrom(address, address, uint) public;
    function deposit() public payable;
    function withdraw(uint) public;
}

contract ManagerLike {
    function cdpCan(address, uint, address) public view returns (uint);
    function ilks(uint) public view returns (bytes32);
    function owns(uint) public view returns (address);
    function urns(uint) public view returns (address);
    function vat() public view returns (address);
    function open(bytes32, address) public returns (uint);
    function give(uint, address) public;
    function cdpAllow(uint, address, uint) public;
    function urnAllow(address, uint) public;
    function frob(uint, int, int) public;
    function flux(uint, address, uint) public;
    function move(uint, address, uint) public;
    function exit(address, uint, address, uint) public;
    function quit(uint, address) public;
    function enter(address, uint) public;
    function shift(uint, uint) public;
}

contract VatLike {
    function can(address, address) public view returns (uint);
    function ilks(bytes32) public view returns (uint, uint, uint, uint, uint);
    function dai(address) public view returns (uint);
    function urns(bytes32, address) public view returns (uint, uint);
    function frob(bytes32, address, address, address, int, int) public;
    function hope(address) public;
    function move(address, address, uint) public;
}

contract GemJoinLike {
    function dec() public returns (uint);
    function gem() public returns (GemLike);
    function join(address, uint) public payable;
    function exit(address, uint) public;
}

contract GNTJoinLike {
    function bags(address) public view returns (address);
    function make(address) public returns (address);
}

contract DaiJoinLike {
    function vat() public returns (VatLike);
    function dai() public returns (GemLike);
    function join(address, uint) public payable;
    function exit(address, uint) public;
}

contract HopeLike {
    function hope(address) public;
    function nope(address) public;
}

contract EndLike {
    function fix(bytes32) public view returns (uint);
    function cash(bytes32, uint) public;
    function free(bytes32) public;
    function pack(uint) public;
    function skim(bytes32, address) public;
}

contract JugLike {
    function drip(bytes32) public returns (uint);
}

contract PotLike {
    function pie(address) public view returns (uint);
    function drip() public returns (uint);
    function join(uint) public;
    function exit(uint) public;
}

contract ProxyRegistryLike {
    function proxies(address) public view returns (address);
    function build(address) public returns (address);
}

contract ProxyLike {
    function owner() public view returns (address);
}

// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
// WARNING: These functions meant to be used as a a library for a DSProxy. Some are unsafe if you call them directly.
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

contract Common {
    uint256 constant RAY = 10 ** 27;

    // Internal functions

    function mul(uint x, uint y) internal pure returns (uint z) {
        require(y == 0 || (z = x * y) / y == x, "mul-overflow");
    }

    // Public functions

    function daiJoin_join(address apt, address urn, uint wad) public {
        // Gets DAI from the user's wallet
        DaiJoinLike(apt).dai().transferFrom(msg.sender, address(this), wad);
        // Approves adapter to take the DAI amount
        DaiJoinLike(apt).dai().approve(apt, wad);
        // Joins DAI into the vat
        DaiJoinLike(apt).join(urn, wad);
    }
}

contract DssProxyActions is Common {
    // Internal functions

    function sub(uint x, uint y) internal pure returns (uint z) {
        require((z = x - y) <= x, "sub-overflow");
    }

    function toInt(uint x) internal pure returns (int y) {
        y = int(x);
        require(y >= 0, "int-overflow");
    }

    function toRad(uint wad) internal pure returns (uint rad) {
        rad = mul(wad, 10 ** 27);
    }

    function convertTo18(address gemJoin, uint256 amt) internal returns (uint256 wad) {
        // For those collaterals that have less than 18 decimals precision we need to do the conversion before passing to frob function
        // Adapters will automatically handle the difference of precision
        wad = mul(
            amt,
            10 ** (18 - GemJoinLike(gemJoin).dec())
        );
    }

    function _getDrawDart(
        address vat,
        address jug,
        address urn,
        bytes32 ilk,
        uint wad
    ) internal returns (int dart) {
        // Updates stability fee rate
        uint rate = JugLike(jug).drip(ilk);

        // Gets DAI balance of the urn in the vat
        uint dai = VatLike(vat).dai(urn);

        // If there was already enough DAI in the vat balance, just exits it without adding more debt
        if (dai < mul(wad, RAY)) {
            // Calculates the needed dart so together with the existing dai in the vat is enough to exit wad amount of DAI tokens
            dart = toInt(sub(mul(wad, RAY), dai) / rate);
            // This is neeeded due lack of precision. It might need to sum an extra dart wei (for the given DAI wad amount)
            dart = mul(uint(dart), rate) < mul(wad, RAY) ? dart + 1 : dart;
        }
    }

    function _getWipeDart(
        address vat,
        uint dai,
        address urn,
        bytes32 ilk
    ) internal view returns (int dart) {
        // Gets actual rate from the vat
        (, uint rate,,,) = VatLike(vat).ilks(ilk);
        // Gets actual art value of the urn
        (, uint art) = VatLike(vat).urns(ilk, urn);

        // Uses the whole dai balance in the vat to reduce the debt
        dart = toInt(dai / rate);
        // Checks the calculated dart is not higher than urn.art (total debt), otherwise uses its value
        dart = uint(dart) <= art ? - dart : - toInt(art);
    }

    function _getWipeAllWad(
        address vat,
        address usr,
        address urn,
        bytes32 ilk
    ) internal view returns (uint wad) {
        // Gets actual rate from the vat
        (, uint rate,,,) = VatLike(vat).ilks(ilk);
        // Gets actual art value of the urn
        (, uint art) = VatLike(vat).urns(ilk, urn);
        // Gets actual dai amount in the urn
        uint dai = VatLike(vat).dai(usr);

        uint rad = sub(mul(art, rate), dai);
        wad = rad / RAY;

        // If the rad precision has some dust, it will need to request for 1 extra wad wei
        wad = mul(wad, RAY) < rad ? wad + 1 : wad;
    }

    // Public functions

    function transfer(address gem, address dst, uint wad) public {
        GemLike(gem).transfer(dst, wad);
    }

    function ethJoin_join(address apt, address urn) public payable {
        // Wraps ETH in WETH
        GemJoinLike(apt).gem().deposit.value(msg.value)();
        // Approves adapter to take the WETH amount
        GemJoinLike(apt).gem().approve(address(apt), msg.value);
        // Joins WETH collateral into the vat
        GemJoinLike(apt).join(urn, msg.value);
    }

    function gemJoin_join(address apt, address urn, uint wad, bool transferFrom) public {
        // Only executes for tokens that have approval/transferFrom implementation
        if (transferFrom) {
            // Gets token from the user's wallet
            GemJoinLike(apt).gem().transferFrom(msg.sender, address(this), wad);
            // Approves adapter to take the token amount
            GemJoinLike(apt).gem().approve(apt, wad);
        }
        // Joins token collateral into the vat
        GemJoinLike(apt).join(urn, wad);
    }

    function hope(
        address obj,
        address usr
    ) public {
        HopeLike(obj).hope(usr);
    }

    function nope(
        address obj,
        address usr
    ) public {
        HopeLike(obj).nope(usr);
    }

    function open(
        address manager,
        bytes32 ilk,
        address usr
    ) public returns (uint cdp) {
        cdp = ManagerLike(manager).open(ilk, usr);
    }

    function give(
        address manager,
        uint cdp,
        address usr
    ) public {
        ManagerLike(manager).give(cdp, usr);
    }

    function giveToProxy(
        address proxyRegistry,
        address manager,
        uint cdp,
        address dst
    ) public {
        // Gets actual proxy address
        address proxy = ProxyRegistryLike(proxyRegistry).proxies(dst);
        // Checks if the proxy address already existed and dst address is still the owner
        if (proxy == address(0) || ProxyLike(proxy).owner() != dst) {
            uint csize;
            assembly {
                csize := extcodesize(dst)
            }
            // We want to avoid creating a proxy for a contract address that might not be able to handle proxies, then losing the CDP
            require(csize == 0, "Dst-is-a-contract");
            // Creates the proxy for the dst address
            proxy = ProxyRegistryLike(proxyRegistry).build(dst);
        }
        // Transfers CDP to the dst proxy
        give(manager, cdp, proxy);
    }

    function cdpAllow(
        address manager,
        uint cdp,
        address usr,
        uint ok
    ) public {
        ManagerLike(manager).cdpAllow(cdp, usr, ok);
    }

    function urnAllow(
        address manager,
        address usr,
        uint ok
    ) public {
        ManagerLike(manager).urnAllow(usr, ok);
    }

    function flux(
        address manager,
        uint cdp,
        address dst,
        uint wad
    ) public {
        ManagerLike(manager).flux(cdp, dst, wad);
    }

    function move(
        address manager,
        uint cdp,
        address dst,
        uint rad
    ) public {
        ManagerLike(manager).move(cdp, dst, rad);
    }

    function frob(
        address manager,
        uint cdp,
        int dink,
        int dart
    ) public {
        ManagerLike(manager).frob(cdp, dink, dart);
    }

    function quit(
        address manager,
        uint cdp,
        address dst
    ) public {
        ManagerLike(manager).quit(cdp, dst);
    }

    function enter(
        address manager,
        address src,
        uint cdp
    ) public {
        ManagerLike(manager).enter(src, cdp);
    }

    function shift(
        address manager,
        uint cdpSrc,
        uint cdpOrg
    ) public {
        ManagerLike(manager).shift(cdpSrc, cdpOrg);
    }

    function makeGemBag(
        address gemJoin
    ) public returns (address bag) {
        bag = GNTJoinLike(gemJoin).make(address(this));
    }

    function lockETH(
        address manager,
        address ethJoin,
        uint cdp
    ) public payable {
        // Receives ETH amount, converts it to WETH and joins it into the vat
        ethJoin_join(ethJoin, address(this));
        // Locks WETH amount into the CDP
        VatLike(ManagerLike(manager).vat()).frob(
            ManagerLike(manager).ilks(cdp),
            ManagerLike(manager).urns(cdp),
            address(this),
            address(this),
            toInt(msg.value),
            0
        );
    }

    function safeLockETH(
        address manager,
        address ethJoin,
        uint cdp,
        address owner
    ) public payable {
        require(ManagerLike(manager).owns(cdp) == owner, "owner-missmatch");
        lockETH(manager, ethJoin, cdp);
    }

    function lockGem(
        address manager,
        address gemJoin,
        uint cdp,
        uint wad,
        bool transferFrom
    ) public {
        // Takes token amount from user's wallet and joins into the vat
        gemJoin_join(gemJoin, address(this), wad, transferFrom);
        // Locks token amount into the CDP
        VatLike(ManagerLike(manager).vat()).frob(
            ManagerLike(manager).ilks(cdp),
            ManagerLike(manager).urns(cdp),
            address(this),
            address(this),
            toInt(convertTo18(gemJoin, wad)),
            0
        );
    }

    function safeLockGem(
        address manager,
        address gemJoin,
        uint cdp,
        uint wad,
        bool transferFrom,
        address owner
    ) public {
        require(ManagerLike(manager).owns(cdp) == owner, "owner-missmatch");
        lockGem(manager, gemJoin, cdp, wad, transferFrom);
    }

    function freeETH(
        address manager,
        address ethJoin,
        uint cdp,
        uint wad
    ) public {
        // Unlocks WETH amount from the CDP
        frob(manager, cdp, -toInt(wad), 0);
        // Moves the amount from the CDP urn to proxy's address
        flux(manager, cdp, address(this), wad);
        // Exits WETH amount to proxy address as a token
        GemJoinLike(ethJoin).exit(address(this), wad);
        // Converts WETH to ETH
        GemJoinLike(ethJoin).gem().withdraw(wad);
        // Sends ETH back to the user's wallet
        msg.sender.transfer(wad);
    }

    function freeGem(
        address manager,
        address gemJoin,
        uint cdp,
        uint wad
    ) public {
        uint wad18 = convertTo18(gemJoin, wad);
        // Unlocks token amount from the CDP
        frob(manager, cdp, -toInt(wad18), 0);
        // Moves the amount from the CDP urn to proxy's address
        flux(manager, cdp, address(this), wad18);
        // Exits token amount to the user's wallet as a token
        GemJoinLike(gemJoin).exit(msg.sender, wad);
    }

    function exitETH(
        address manager,
        address ethJoin,
        uint cdp,
        uint wad
    ) public {
        // Moves the amount from the CDP urn to proxy's address
        flux(manager, cdp, address(this), wad);

        // Exits WETH amount to proxy address as a token
        GemJoinLike(ethJoin).exit(address(this), wad);
        // Converts WETH to ETH
        GemJoinLike(ethJoin).gem().withdraw(wad);
        // Sends ETH back to the user's wallet
        msg.sender.transfer(wad);
    }

    function exitGem(
        address manager,
        address gemJoin,
        uint cdp,
        uint wad
    ) public {
        // Moves the amount from the CDP urn to proxy's address
        flux(manager, cdp, address(this), convertTo18(gemJoin, wad));

        // Exits token amount to the user's wallet as a token
        GemJoinLike(gemJoin).exit(msg.sender, wad);
    }

    function draw(
        address manager,
        address jug,
        address daiJoin,
        uint cdp,
        uint wad
    ) public {
        address urn = ManagerLike(manager).urns(cdp);
        address vat = ManagerLike(manager).vat();
        bytes32 ilk = ManagerLike(manager).ilks(cdp);
        // Generates debt in the CDP
        frob(manager, cdp, 0, _getDrawDart(vat, jug, urn, ilk, wad));
        // Moves the DAI amount (balance in the vat in rad) to proxy's address
        move(manager, cdp, address(this), toRad(wad));
        // Allows adapter to access to proxy's DAI balance in the vat
        if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {
            VatLike(vat).hope(daiJoin);
        }
        // Exits DAI to the user's wallet as a token
        DaiJoinLike(daiJoin).exit(msg.sender, wad);
    }

    function wipe(
        address manager,
        address daiJoin,
        uint cdp,
        uint wad
    ) public {
        address vat = ManagerLike(manager).vat();
        address urn = ManagerLike(manager).urns(cdp);
        bytes32 ilk = ManagerLike(manager).ilks(cdp);

        address own = ManagerLike(manager).owns(cdp);
        if (own == address(this) || ManagerLike(manager).cdpCan(own, cdp, address(this)) == 1) {
            // Joins DAI amount into the vat
            daiJoin_join(daiJoin, urn, wad);
            // Paybacks debt to the CDP
            frob(manager, cdp, 0, _getWipeDart(vat, VatLike(vat).dai(urn), urn, ilk));
        } else {
             // Joins DAI amount into the vat
            daiJoin_join(daiJoin, address(this), wad);
            // Paybacks debt to the CDP
            VatLike(vat).frob(
                ilk,
                urn,
                address(this),
                address(this),
                0,
                _getWipeDart(vat, wad * RAY, urn, ilk)
            );
        }
    }

    function safeWipe(
        address manager,
        address daiJoin,
        uint cdp,
        uint wad,
        address owner
    ) public {
        require(ManagerLike(manager).owns(cdp) == owner, "owner-missmatch");
        wipe(manager, daiJoin, cdp, wad);
    }

    function wipeAll(
        address manager,
        address daiJoin,
        uint cdp
    ) public {
        address vat = ManagerLike(manager).vat();
        address urn = ManagerLike(manager).urns(cdp);
        bytes32 ilk = ManagerLike(manager).ilks(cdp);
        (, uint art) = VatLike(vat).urns(ilk, urn);

        address own = ManagerLike(manager).owns(cdp);
        if (own == address(this) || ManagerLike(manager).cdpCan(own, cdp, address(this)) == 1) {
            // Joins DAI amount into the vat
            daiJoin_join(daiJoin, urn, _getWipeAllWad(vat, urn, urn, ilk));
            // Paybacks debt to the CDP
            frob(manager, cdp, 0, -int(art));
        } else {
            // Joins DAI amount into the vat
            daiJoin_join(daiJoin, address(this), _getWipeAllWad(vat, address(this), urn, ilk));
            // Paybacks debt to the CDP
            VatLike(vat).frob(
                ilk,
                urn,
                address(this),
                address(this),
                0,
                -int(art)
            );
        }
    }

    function safeWipeAll(
        address manager,
        address daiJoin,
        uint cdp,
        address owner
    ) public {
        require(ManagerLike(manager).owns(cdp) == owner, "owner-missmatch");
        wipeAll(manager, daiJoin, cdp);
    }

    function lockETHAndDraw(
        address manager,
        address jug,
        address ethJoin,
        address daiJoin,
        uint cdp,
        uint wadD
    ) public payable {
        address urn = ManagerLike(manager).urns(cdp);
        address vat = ManagerLike(manager).vat();
        bytes32 ilk = ManagerLike(manager).ilks(cdp);
        // Receives ETH amount, converts it to WETH and joins it into the vat
        ethJoin_join(ethJoin, urn);
        // Locks WETH amount into the CDP and generates debt
        frob(manager, cdp, toInt(msg.value), _getDrawDart(vat, jug, urn, ilk, wadD));
        // Moves the DAI amount (balance in the vat in rad) to proxy's address
        move(manager, cdp, address(this), toRad(wadD));
        // Allows adapter to access to proxy's DAI balance in the vat
        if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {
            VatLike(vat).hope(daiJoin);
        }
        // Exits DAI to the user's wallet as a token
        DaiJoinLike(daiJoin).exit(msg.sender, wadD);
    }

    function openLockETHAndDraw(
        address manager,
        address jug,
        address ethJoin,
        address daiJoin,
        bytes32 ilk,
        uint wadD
    ) public payable returns (uint cdp) {
        cdp = open(manager, ilk, address(this));
        lockETHAndDraw(manager, jug, ethJoin, daiJoin, cdp, wadD);
    }

    function lockGemAndDraw(
        address manager,
        address jug,
        address gemJoin,
        address daiJoin,
        uint cdp,
        uint wadC,
        uint wadD,
        bool transferFrom
    ) public {
        address urn = ManagerLike(manager).urns(cdp);
        address vat = ManagerLike(manager).vat();
        bytes32 ilk = ManagerLike(manager).ilks(cdp);
        // Takes token amount from user's wallet and joins into the vat
        gemJoin_join(gemJoin, urn, wadC, transferFrom);
        // Locks token amount into the CDP and generates debt
        frob(manager, cdp, toInt(convertTo18(gemJoin, wadC)), _getDrawDart(vat, jug, urn, ilk, wadD));
        // Moves the DAI amount (balance in the vat in rad) to proxy's address
        move(manager, cdp, address(this), toRad(wadD));
        // Allows adapter to access to proxy's DAI balance in the vat
        if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {
            VatLike(vat).hope(daiJoin);
        }
        // Exits DAI to the user's wallet as a token
        DaiJoinLike(daiJoin).exit(msg.sender, wadD);
    }

    function openLockGemAndDraw(
        address manager,
        address jug,
        address gemJoin,
        address daiJoin,
        bytes32 ilk,
        uint wadC,
        uint wadD,
        bool transferFrom
    ) public returns (uint cdp) {
        cdp = open(manager, ilk, address(this));
        lockGemAndDraw(manager, jug, gemJoin, daiJoin, cdp, wadC, wadD, transferFrom);
    }

    function openLockGNTAndDraw(
        address manager,
        address jug,
        address gntJoin,
        address daiJoin,
        bytes32 ilk,
        uint wadC,
        uint wadD
    ) public returns (address bag, uint cdp) {
        // Creates bag (if doesn't exist) to hold GNT
        bag = GNTJoinLike(gntJoin).bags(address(this));
        if (bag == address(0)) {
            bag = makeGemBag(gntJoin);
        }
        // Transfer funds to the funds which previously were sent to the proxy
        GemLike(GemJoinLike(gntJoin).gem()).transfer(bag, wadC);
        cdp = openLockGemAndDraw(manager, jug, gntJoin, daiJoin, ilk, wadC, wadD, false);
    }

    function wipeAndFreeETH(
        address manager,
        address ethJoin,
        address daiJoin,
        uint cdp,
        uint wadC,
        uint wadD
    ) public {
        address urn = ManagerLike(manager).urns(cdp);
        // Joins DAI amount into the vat
        daiJoin_join(daiJoin, urn, wadD);
        // Paybacks debt to the CDP and unlocks WETH amount from it
        frob(
            manager,
            cdp,
            -toInt(wadC),
            _getWipeDart(ManagerLike(manager).vat(), VatLike(ManagerLike(manager).vat()).dai(urn), urn, ManagerLike(manager).ilks(cdp))
        );
        // Moves the amount from the CDP urn to proxy's address
        flux(manager, cdp, address(this), wadC);
        // Exits WETH amount to proxy address as a token
        GemJoinLike(ethJoin).exit(address(this), wadC);
        // Converts WETH to ETH
        GemJoinLike(ethJoin).gem().withdraw(wadC);
        // Sends ETH back to the user's wallet
        msg.sender.transfer(wadC);
    }

    function wipeAllAndFreeETH(
        address manager,
        address ethJoin,
        address daiJoin,
        uint cdp,
        uint wadC
    ) public {
        address vat = ManagerLike(manager).vat();
        address urn = ManagerLike(manager).urns(cdp);
        bytes32 ilk = ManagerLike(manager).ilks(cdp);
        (, uint art) = VatLike(vat).urns(ilk, urn);

        // Joins DAI amount into the vat
        daiJoin_join(daiJoin, urn, _getWipeAllWad(vat, urn, urn, ilk));
        // Paybacks debt to the CDP and unlocks WETH amount from it
        frob(
            manager,
            cdp,
            -toInt(wadC),
            -int(art)
        );
        // Moves the amount from the CDP urn to proxy's address
        flux(manager, cdp, address(this), wadC);
        // Exits WETH amount to proxy address as a token
        GemJoinLike(ethJoin).exit(address(this), wadC);
        // Converts WETH to ETH
        GemJoinLike(ethJoin).gem().withdraw(wadC);
        // Sends ETH back to the user's wallet
        msg.sender.transfer(wadC);
    }

    function wipeAndFreeGem(
        address manager,
        address gemJoin,
        address daiJoin,
        uint cdp,
        uint wadC,
        uint wadD
    ) public {
        address urn = ManagerLike(manager).urns(cdp);
        // Joins DAI amount into the vat
        daiJoin_join(daiJoin, urn, wadD);
        uint wad18 = convertTo18(gemJoin, wadC);
        // Paybacks debt to the CDP and unlocks token amount from it
        frob(
            manager,
            cdp,
            -toInt(wad18),
            _getWipeDart(ManagerLike(manager).vat(), VatLike(ManagerLike(manager).vat()).dai(urn), urn, ManagerLike(manager).ilks(cdp))
        );
        // Moves the amount from the CDP urn to proxy's address
        flux(manager, cdp, address(this), wad18);
        // Exits token amount to the user's wallet as a token
        GemJoinLike(gemJoin).exit(msg.sender, wadC);
    }

    function wipeAllAndFreeGem(
        address manager,
        address gemJoin,
        address daiJoin,
        uint cdp,
        uint wadC
    ) public {
        address vat = ManagerLike(manager).vat();
        address urn = ManagerLike(manager).urns(cdp);
        bytes32 ilk = ManagerLike(manager).ilks(cdp);
        (, uint art) = VatLike(vat).urns(ilk, urn);

        // Joins DAI amount into the vat
        daiJoin_join(daiJoin, urn, _getWipeAllWad(vat, urn, urn, ilk));
        uint wad18 = convertTo18(gemJoin, wadC);
        // Paybacks debt to the CDP and unlocks token amount from it
        frob(
            manager,
            cdp,
            -toInt(wad18),
            -int(art)
        );
        // Moves the amount from the CDP urn to proxy's address
        flux(manager, cdp, address(this), wad18);
        // Exits token amount to the user's wallet as a token
        GemJoinLike(gemJoin).exit(msg.sender, wadC);
    }
}

contract DssProxyActionsEnd is Common {
    // Internal functions

    function _free(
        address manager,
        address end,
        uint cdp
    ) internal returns (uint ink) {
        bytes32 ilk = ManagerLike(manager).ilks(cdp);
        address urn = ManagerLike(manager).urns(cdp);
        VatLike vat = VatLike(ManagerLike(manager).vat());
        uint art;
        (ink, art) = vat.urns(ilk, urn);

        // If CDP still has debt, it needs to be paid
        if (art > 0) {
            EndLike(end).skim(ilk, urn);
            (ink,) = vat.urns(ilk, urn);
        }
        // Approves the manager to transfer the position to proxy's address in the vat
        if (vat.can(address(this), address(manager)) == 0) {
            vat.hope(manager);
        }
        // Transfers position from CDP to the proxy address
        ManagerLike(manager).quit(cdp, address(this));
        // Frees the position and recovers the collateral in the vat registry
        EndLike(end).free(ilk);
    }

    // Public functions
    function freeETH(
        address manager,
        address ethJoin,
        address end,
        uint cdp
    ) public {
        uint wad = _free(manager, end, cdp);
        // Exits WETH amount to proxy address as a token
        GemJoinLike(ethJoin).exit(address(this), wad);
        // Converts WETH to ETH
        GemJoinLike(ethJoin).gem().withdraw(wad);
        // Sends ETH back to the user's wallet
        msg.sender.transfer(wad);
    }

    function freeGem(
        address manager,
        address gemJoin,
        address end,
        uint cdp
    ) public {
        uint wad = _free(manager, end, cdp);
        // Exits token amount to the user's wallet as a token
        GemJoinLike(gemJoin).exit(msg.sender, wad);
    }

    function pack(
        address daiJoin,
        address end,
        uint wad
    ) public {
        daiJoin_join(daiJoin, address(this), wad);
        VatLike vat = DaiJoinLike(daiJoin).vat();
        // Approves the end to take out DAI from the proxy's balance in the vat
        if (vat.can(address(this), address(end)) == 0) {
            vat.hope(end);
        }
        EndLike(end).pack(wad);
    }

    function cashETH(
        address ethJoin,
        address end,
        bytes32 ilk,
        uint wad
    ) public {
        EndLike(end).cash(ilk, wad);
        uint wadC = mul(wad, EndLike(end).fix(ilk)) / RAY;
        // Exits WETH amount to proxy address as a token
        GemJoinLike(ethJoin).exit(address(this), wadC);
        // Converts WETH to ETH
        GemJoinLike(ethJoin).gem().withdraw(wadC);
        // Sends ETH back to the user's wallet
        msg.sender.transfer(wadC);
    }

    function cashGem(
        address gemJoin,
        address end,
        bytes32 ilk,
        uint wad
    ) public {
        EndLike(end).cash(ilk, wad);
        // Exits token amount to the user's wallet as a token
        GemJoinLike(gemJoin).exit(msg.sender, mul(wad, EndLike(end).fix(ilk)) / RAY);
    }
}

contract DssProxyActionsDsr is Common {
    function join(
        address daiJoin,
        address pot,
        uint wad
    ) public {
        VatLike vat = DaiJoinLike(daiJoin).vat();
        // Executes drip to get the chi rate updated to rho == now, otherwise join will fail
        uint chi = PotLike(pot).drip();
        // Joins wad amount to the vat balance
        daiJoin_join(daiJoin, address(this), wad);
        // Approves the pot to take out DAI from the proxy's balance in the vat
        if (vat.can(address(this), address(pot)) == 0) {
            vat.hope(pot);
        }
        // Joins the pie value (equivalent to the DAI wad amount) in the pot
        PotLike(pot).join(mul(wad, RAY) / chi);
    }

    function exit(
        address daiJoin,
        address pot,
        uint wad
    ) public {
        VatLike vat = DaiJoinLike(daiJoin).vat();
        // Executes drip to count the savings accumulated until this moment
        uint chi = PotLike(pot).drip();
        // Calculates the pie value in the pot equivalent to the DAI wad amount
        uint pie = mul(wad, RAY) / chi;
        // Exits DAI from the pot
        PotLike(pot).exit(pie);
        // Checks the actual balance of DAI in the vat after the pot exit
        uint bal = DaiJoinLike(daiJoin).vat().dai(address(this));
        // Allows adapter to access to proxy's DAI balance in the vat
        if (vat.can(address(this), address(daiJoin)) == 0) {
            vat.hope(daiJoin);
        }
        // It is necessary to check if due rounding the exact wad amount can be exited by the adapter.
        // Otherwise it will do the maximum DAI balance in the vat
        DaiJoinLike(daiJoin).exit(
            msg.sender,
            bal >= mul(wad, RAY) ? wad : bal / RAY
        );
    }

    function exitAll(
        address daiJoin,
        address pot
    ) public {
        VatLike vat = DaiJoinLike(daiJoin).vat();
        // Executes drip to count the savings accumulated until this moment
        uint chi = PotLike(pot).drip();
        // Gets the total pie belonging to the proxy address
        uint pie = PotLike(pot).pie(address(this));
        // Exits DAI from the pot
        PotLike(pot).exit(pie);
        // Allows adapter to access to proxy's DAI balance in the vat
        if (vat.can(address(this), address(daiJoin)) == 0) {
            vat.hope(daiJoin);
        }
        // Exits the DAI amount corresponding to the value of pie
        DaiJoinLike(daiJoin).exit(msg.sender, mul(chi, pie) / RAY);
    }
}