func ratProb(mode int) func(*big.Rat) *big.Rat {
return func(x *big.Rat) *big.Rat {
lo := big.NewInt(0)
hi := new(big.Int).Set(big2p63)
n := 0
for lo.Cmp(hi) != 0 {
m := new(big.Int).Add(lo, hi)
m = m.Rsh(m, 1)
if n++; n > 100 {
fmt.Printf("??? %v %v %v\n", lo, hi, m)
break
}
v := new(big.Rat).SetFrac(m, big2p63)
f, _ := v.Float64()
v.SetFloat64(f)
if v.Cmp(x) < 0 {
lo.Add(m, bigOne)
} else {
hi.Set(m)
}
}
switch mode {
default: // case 0
return new(big.Rat).SetFrac(lo, big2p63)
case 1:
if lo.Cmp(big.NewInt(cutoff1)) <= 0 {
lo.Add(lo, big.NewInt(1<<63-cutoff1))
}
return new(big.Rat).SetFrac(lo, big2p63)
case 2:
return new(big.Rat).SetFrac(lo, big.NewInt(cutoff1))
}
}
}
func getBalance(balance string) (bool, *big.Rat) {
rationalNum := new(big.Rat)
if strings.Contains(balance, "(") {
rationalNum.SetFloat64(calc.Solve(balance))
return true, rationalNum
}
_, isValid := rationalNum.SetString(balance)
return isValid, rationalNum
}
//export OFXTransactionCallback
func OFXTransactionCallback(transaction_data C.struct_OfxTransactionData, data unsafe.Pointer) C.int {
iobj := (*ImportObject)(data)
itl := iobj.TransactionList
transaction := new(Transaction)
if transaction_data.name_valid != 0 {
transaction.Description = C.GoString(&transaction_data.name[0])
}
// if transaction_data.reference_number_valid != 0 {
// fmt.Println("reference_number: ", C.GoString(&transaction_data.reference_number[0]))
// }
if transaction_data.date_posted_valid != 0 {
transaction.Date = time.Unix(int64(transaction_data.date_posted), 0)
} else if transaction_data.date_initiated_valid != 0 {
transaction.Date = time.Unix(int64(transaction_data.date_initiated), 0)
}
if transaction_data.fi_id_valid != 0 {
transaction.RemoteId = C.GoString(&transaction_data.fi_id[0])
}
if transaction_data.amount_valid != 0 {
split := new(Split)
r := new(big.Rat)
r.SetFloat64(float64(transaction_data.amount))
security, err := GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
split.Amount = r.FloatString(security.Precision)
if transaction_data.memo_valid != 0 {
split.Memo = C.GoString(&transaction_data.memo[0])
}
if transaction_data.check_number_valid != 0 {
split.Number = C.GoString(&transaction_data.check_number[0])
}
split.SecurityId = -1
split.AccountId = itl.Account.AccountId
transaction.Splits = append(transaction.Splits, split)
} else {
if iobj.Error == nil {
iobj.Error = errors.New("OFX transaction amount invalid")
}
return 1
}
var security *Security
var err error
split := new(Split)
units := new(big.Rat)
if transaction_data.units_valid != 0 {
units.SetFloat64(float64(transaction_data.units))
if transaction_data.security_data_valid != 0 {
security_data := transaction_data.security_data_ptr
if security_data.ticker_valid != 0 {
s, err := GetSecurityByName(C.GoString(&security_data.ticker[0]))
if err != nil {
if iobj.Error == nil {
iobj.Error = errors.New("Failed to find OFX transaction security: " + C.GoString(&security_data.ticker[0]))
}
return 1
}
security = s
} else {
if iobj.Error == nil {
iobj.Error = errors.New("OFX security ticker invalid")
}
return 1
}
if security.Type == Stock && security_data.unique_id_valid != 0 && security_data.unique_id_type_valid != 0 && C.GoString(&security_data.unique_id_type[0]) == "CUSIP" {
// Validate the security CUSIP, if possible
if security.AlternateId != C.GoString(&security_data.unique_id[0]) {
if iobj.Error == nil {
iobj.Error = errors.New("OFX transaction security CUSIP failed to validate")
}
return 1
}
}
} else {
security, err = GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
}
} else {
// Calculate units from other available fields if its not present
// units = - (amount + various fees) / unitprice
units.SetFloat64(float64(transaction_data.amount))
fees := new(big.Rat)
if transaction_data.fees_valid != 0 {
fees.SetFloat64(float64(-transaction_data.fees))
}
if transaction_data.commission_valid != 0 {
commission := new(big.Rat)
commission.SetFloat64(float64(-transaction_data.commission))
fees.Add(fees, commission)
}
units.Add(units, fees)
units.Neg(units)
if transaction_data.unitprice_valid != 0 && transaction_data.unitprice != 0 {
unitprice := new(big.Rat)
unitprice.SetFloat64(float64(transaction_data.unitprice))
units.Quo(units, unitprice)
}
// If 'units' wasn't present, assume we're using the account's security
security, err = GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
}
split.Amount = units.FloatString(security.Precision)
split.SecurityId = security.SecurityId
split.AccountId = -1
transaction.Splits = append(transaction.Splits, split)
if transaction_data.fees_valid != 0 {
split := new(Split)
r := new(big.Rat)
r.SetFloat64(float64(-transaction_data.fees))
security, err := GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
split.Amount = r.FloatString(security.Precision)
split.Memo = "fees"
split.SecurityId = itl.Account.SecurityId
split.AccountId = -1
transaction.Splits = append(transaction.Splits, split)
}
if transaction_data.commission_valid != 0 {
split := new(Split)
r := new(big.Rat)
r.SetFloat64(float64(-transaction_data.commission))
security, err := GetSecurity(itl.Account.SecurityId, itl.Account.UserId)
if err != nil {
if iobj.Error == nil {
iobj.Error = err
}
return 1
}
split.Amount = r.FloatString(security.Precision)
split.Memo = "commission"
split.SecurityId = itl.Account.SecurityId
split.AccountId = -1
transaction.Splits = append(transaction.Splits, split)
}
// if transaction_data.payee_id_valid != 0 {
// fmt.Println("payee_id: ", C.GoString(&transaction_data.payee_id[0]))
// }
transaction_list := append(*itl.Transactions, *transaction)
iobj.TransactionList.Transactions = &transaction_list
return 0
}
func (vm *Vm) Process(contract *Contract, state *State, vars RuntimeVars) {
vm.mem = make(map[string]*big.Int)
vm.stack = NewStack()
addr := vars.address // tx.Hash()[12:]
// Instruction pointer
pc := 0
if contract == nil {
fmt.Println("Contract not found")
return
}
Pow256 := ethutil.BigPow(2, 256)
if ethutil.Config.Debug {
ethutil.Config.Log.Debugf("# op\n")
}
stepcount := 0
totalFee := new(big.Int)
out:
for {
stepcount++
// The base big int for all calculations. Use this for any results.
base := new(big.Int)
val := contract.GetMem(pc)
//fmt.Printf("%x = %d, %v %x\n", r, len(r), v, nb)
op := OpCode(val.Uint())
var fee *big.Int = new(big.Int)
var fee2 *big.Int = new(big.Int)
if stepcount > 16 {
fee.Add(fee, StepFee)
}
// Calculate the fees
switch op {
case oSSTORE:
y, x := vm.stack.Peekn()
val := contract.Addr(ethutil.BigToBytes(x, 256))
if val.IsEmpty() && len(y.Bytes()) > 0 {
fee2.Add(DataFee, StoreFee)
} else {
fee2.Sub(DataFee, StoreFee)
}
case oSLOAD:
fee.Add(fee, StoreFee)
case oEXTRO, oBALANCE:
fee.Add(fee, ExtroFee)
case oSHA256, oRIPEMD160, oECMUL, oECADD, oECSIGN, oECRECOVER, oECVALID:
fee.Add(fee, CryptoFee)
case oMKTX:
fee.Add(fee, ContractFee)
}
tf := new(big.Int).Add(fee, fee2)
if contract.Amount.Cmp(tf) < 0 {
fmt.Println("Insufficient fees to continue running the contract", tf, contract.Amount)
break
}
// Add the fee to the total fee. It's subtracted when we're done looping
totalFee.Add(totalFee, tf)
if ethutil.Config.Debug {
ethutil.Config.Log.Debugf("%-3d %-4s", pc, op.String())
}
switch op {
case oSTOP:
fmt.Println("")
break out
case oADD:
x, y := vm.stack.Popn()
// (x + y) % 2 ** 256
base.Add(x, y)
base.Mod(base, Pow256)
// Pop result back on the stack
vm.stack.Push(base)
case oSUB:
x, y := vm.stack.Popn()
// (x - y) % 2 ** 256
base.Sub(x, y)
base.Mod(base, Pow256)
// Pop result back on the stack
vm.stack.Push(base)
case oMUL:
x, y := vm.stack.Popn()
// (x * y) % 2 ** 256
base.Mul(x, y)
base.Mod(base, Pow256)
// Pop result back on the stack
vm.stack.Push(base)
case oDIV:
x, y := vm.stack.Popn()
// floor(x / y)
base.Div(x, y)
// Pop result back on the stack
vm.stack.Push(base)
case oSDIV:
x, y := vm.stack.Popn()
// n > 2**255
if x.Cmp(Pow256) > 0 {
x.Sub(Pow256, x)
}
if y.Cmp(Pow256) > 0 {
y.Sub(Pow256, y)
}
z := new(big.Int)
z.Div(x, y)
if z.Cmp(Pow256) > 0 {
z.Sub(Pow256, z)
}
// Push result on to the stack
vm.stack.Push(z)
case oMOD:
x, y := vm.stack.Popn()
base.Mod(x, y)
vm.stack.Push(base)
case oSMOD:
x, y := vm.stack.Popn()
// n > 2**255
if x.Cmp(Pow256) > 0 {
x.Sub(Pow256, x)
}
if y.Cmp(Pow256) > 0 {
y.Sub(Pow256, y)
}
z := new(big.Int)
z.Mod(x, y)
if z.Cmp(Pow256) > 0 {
z.Sub(Pow256, z)
}
// Push result on to the stack
vm.stack.Push(z)
case oEXP:
x, y := vm.stack.Popn()
base.Exp(x, y, Pow256)
vm.stack.Push(base)
case oNEG:
base.Sub(Pow256, vm.stack.Pop())
vm.stack.Push(base)
case oLT:
x, y := vm.stack.Popn()
// x < y
if x.Cmp(y) < 0 {
vm.stack.Push(ethutil.BigTrue)
} else {
vm.stack.Push(ethutil.BigFalse)
}
case oLE:
x, y := vm.stack.Popn()
// x <= y
if x.Cmp(y) < 1 {
vm.stack.Push(ethutil.BigTrue)
} else {
vm.stack.Push(ethutil.BigFalse)
}
case oGT:
x, y := vm.stack.Popn()
// x > y
if x.Cmp(y) > 0 {
vm.stack.Push(ethutil.BigTrue)
} else {
vm.stack.Push(ethutil.BigFalse)
}
case oGE:
x, y := vm.stack.Popn()
// x >= y
if x.Cmp(y) > -1 {
vm.stack.Push(ethutil.BigTrue)
} else {
vm.stack.Push(ethutil.BigFalse)
}
case oNOT:
x, y := vm.stack.Popn()
// x != y
if x.Cmp(y) != 0 {
vm.stack.Push(ethutil.BigTrue)
} else {
vm.stack.Push(ethutil.BigFalse)
}
case oMYADDRESS:
vm.stack.Push(ethutil.BigD(addr))
case oTXSENDER:
vm.stack.Push(ethutil.BigD(vars.sender))
case oTXVALUE:
vm.stack.Push(vars.txValue)
case oTXDATAN:
vm.stack.Push(big.NewInt(int64(len(vars.txData))))
case oTXDATA:
v := vm.stack.Pop()
// v >= len(data)
if v.Cmp(big.NewInt(int64(len(vars.txData)))) >= 0 {
vm.stack.Push(ethutil.Big("0"))
} else {
vm.stack.Push(ethutil.Big(vars.txData[v.Uint64()]))
}
case oBLK_PREVHASH:
vm.stack.Push(ethutil.BigD(vars.prevHash))
case oBLK_COINBASE:
vm.stack.Push(ethutil.BigD(vars.coinbase))
case oBLK_TIMESTAMP:
vm.stack.Push(big.NewInt(vars.time))
case oBLK_NUMBER:
vm.stack.Push(big.NewInt(int64(vars.blockNumber)))
case oBLK_DIFFICULTY:
vm.stack.Push(vars.diff)
case oBASEFEE:
// e = 10^21
e := big.NewInt(0).Exp(big.NewInt(10), big.NewInt(21), big.NewInt(0))
d := new(big.Rat)
d.SetInt(vars.diff)
c := new(big.Rat)
c.SetFloat64(0.5)
// d = diff / 0.5
d.Quo(d, c)
// base = floor(d)
base.Div(d.Num(), d.Denom())
x := new(big.Int)
x.Div(e, base)
// x = floor(10^21 / floor(diff^0.5))
vm.stack.Push(x)
case oSHA256, oSHA3, oRIPEMD160:
// This is probably save
// ceil(pop / 32)
length := int(math.Ceil(float64(vm.stack.Pop().Uint64()) / 32.0))
// New buffer which will contain the concatenated popped items
data := new(bytes.Buffer)
for i := 0; i < length; i++ {
// Encode the number to bytes and have it 32bytes long
num := ethutil.NumberToBytes(vm.stack.Pop().Bytes(), 256)
data.WriteString(string(num))
}
if op == oSHA256 {
vm.stack.Push(base.SetBytes(ethutil.Sha256Bin(data.Bytes())))
} else if op == oSHA3 {
vm.stack.Push(base.SetBytes(ethutil.Sha3Bin(data.Bytes())))
} else {
vm.stack.Push(base.SetBytes(ethutil.Ripemd160(data.Bytes())))
}
case oECMUL:
y := vm.stack.Pop()
x := vm.stack.Pop()
//n := vm.stack.Pop()
//if ethutil.Big(x).Cmp(ethutil.Big(y)) {
data := new(bytes.Buffer)
data.WriteString(x.String())
data.WriteString(y.String())
if secp256k1.VerifyPubkeyValidity(data.Bytes()) == 1 {
// TODO
} else {
// Invalid, push infinity
vm.stack.Push(ethutil.Big("0"))
vm.stack.Push(ethutil.Big("0"))
}
//} else {
// // Invalid, push infinity
// vm.stack.Push("0")
// vm.stack.Push("0")
//}
case oECADD:
case oECSIGN:
case oECRECOVER:
case oECVALID:
case oPUSH:
pc++
vm.stack.Push(contract.GetMem(pc).BigInt())
case oPOP:
// Pop current value of the stack
vm.stack.Pop()
case oDUP:
// Dup top stack
x := vm.stack.Pop()
vm.stack.Push(x)
vm.stack.Push(x)
case oSWAP:
// Swap two top most values
x, y := vm.stack.Popn()
vm.stack.Push(y)
vm.stack.Push(x)
case oMLOAD:
x := vm.stack.Pop()
vm.stack.Push(vm.mem[x.String()])
case oMSTORE:
x, y := vm.stack.Popn()
vm.mem[x.String()] = y
case oSLOAD:
// Load the value in storage and push it on the stack
x := vm.stack.Pop()
// decode the object as a big integer
decoder := contract.Addr(x.Bytes())
if !decoder.IsNil() {
vm.stack.Push(decoder.BigInt())
} else {
vm.stack.Push(ethutil.BigFalse)
}
case oSSTORE:
// Store Y at index X
y, x := vm.stack.Popn()
addr := ethutil.BigToBytes(x, 256)
fmt.Printf(" => %x (%v) @ %v", y.Bytes(), y, ethutil.BigD(addr))
contract.SetAddr(addr, y)
//contract.State().Update(string(idx), string(y))
case oJMP:
x := int(vm.stack.Pop().Uint64())
// Set pc to x - 1 (minus one so the incrementing at the end won't effect it)
pc = x
pc--
case oJMPI:
x := vm.stack.Pop()
// Set pc to x if it's non zero
if x.Cmp(ethutil.BigFalse) != 0 {
pc = int(x.Uint64())
pc--
}
case oIND:
vm.stack.Push(big.NewInt(int64(pc)))
case oEXTRO:
memAddr := vm.stack.Pop()
contractAddr := vm.stack.Pop().Bytes()
// Push the contract's memory on to the stack
vm.stack.Push(contractMemory(state, contractAddr, memAddr))
case oBALANCE:
// Pushes the balance of the popped value on to the stack
account := state.GetAccount(vm.stack.Pop().Bytes())
vm.stack.Push(account.Amount)
case oMKTX:
addr, value := vm.stack.Popn()
from, length := vm.stack.Popn()
makeInlineTx(addr.Bytes(), value, from, length, contract, state)
case oSUICIDE:
recAddr := vm.stack.Pop().Bytes()
// Purge all memory
deletedMemory := contract.state.Purge()
// Add refunds to the pop'ed address
refund := new(big.Int).Mul(StoreFee, big.NewInt(int64(deletedMemory)))
account := state.GetAccount(recAddr)
account.Amount.Add(account.Amount, refund)
// Update the refunding address
state.UpdateAccount(recAddr, account)
// Delete the contract
state.trie.Update(string(addr), "")
ethutil.Config.Log.Debugf("(%d) => %x\n", deletedMemory, recAddr)
break out
default:
fmt.Printf("Invalid OPCODE: %x\n", op)
}
ethutil.Config.Log.Debugln("")
//vm.stack.Print()
pc++
}
state.UpdateContract(addr, contract)
}
func FloatToRat(v float64) *big.Rat {
rat := new(big.Rat)
rat.SetFloat64(v)
return rat
}
// Contract evaluation is done here.
func (bm *BlockManager) ProcContract(tx *ethutil.Transaction, block *ethutil.Block, cb TxCallback) {
// Instruction pointer
pc := 0
blockInfo := bm.BlockInfo(block)
contract := block.GetContract(tx.Hash())
if contract == nil {
fmt.Println("Contract not found")
return
}
Pow256 := ethutil.BigPow(2, 256)
//fmt.Printf("# op arg\n")
out:
for {
// The base big int for all calculations. Use this for any results.
base := new(big.Int)
// XXX Should Instr return big int slice instead of string slice?
// Get the next instruction from the contract
//op, _, _ := Instr(contract.state.Get(string(Encode(uint32(pc)))))
nb := ethutil.NumberToBytes(uint64(pc), 32)
o, _, _ := ethutil.Instr(contract.State().Get(string(nb)))
op := OpCode(o)
if !cb(0) {
break
}
if Debug {
//fmt.Printf("%-3d %-4s\n", pc, op.String())
}
switch op {
case oSTOP:
break out
case oADD:
x, y := bm.stack.Popn()
// (x + y) % 2 ** 256
base.Add(x, y)
base.Mod(base, Pow256)
// Pop result back on the stack
bm.stack.Push(base)
case oSUB:
x, y := bm.stack.Popn()
// (x - y) % 2 ** 256
base.Sub(x, y)
base.Mod(base, Pow256)
// Pop result back on the stack
bm.stack.Push(base)
case oMUL:
x, y := bm.stack.Popn()
// (x * y) % 2 ** 256
base.Mul(x, y)
base.Mod(base, Pow256)
// Pop result back on the stack
bm.stack.Push(base)
case oDIV:
x, y := bm.stack.Popn()
// floor(x / y)
base.Div(x, y)
// Pop result back on the stack
bm.stack.Push(base)
case oSDIV:
x, y := bm.stack.Popn()
// n > 2**255
if x.Cmp(Pow256) > 0 {
x.Sub(Pow256, x)
}
if y.Cmp(Pow256) > 0 {
y.Sub(Pow256, y)
}
z := new(big.Int)
z.Div(x, y)
if z.Cmp(Pow256) > 0 {
z.Sub(Pow256, z)
}
// Push result on to the stack
bm.stack.Push(z)
case oMOD:
x, y := bm.stack.Popn()
base.Mod(x, y)
bm.stack.Push(base)
case oSMOD:
x, y := bm.stack.Popn()
// n > 2**255
if x.Cmp(Pow256) > 0 {
x.Sub(Pow256, x)
}
if y.Cmp(Pow256) > 0 {
y.Sub(Pow256, y)
}
z := new(big.Int)
z.Mod(x, y)
if z.Cmp(Pow256) > 0 {
z.Sub(Pow256, z)
}
// Push result on to the stack
bm.stack.Push(z)
case oEXP:
x, y := bm.stack.Popn()
base.Exp(x, y, Pow256)
bm.stack.Push(base)
case oNEG:
base.Sub(Pow256, bm.stack.Pop())
bm.stack.Push(base)
case oLT:
x, y := bm.stack.Popn()
// x < y
if x.Cmp(y) < 0 {
bm.stack.Push(ethutil.BigTrue)
} else {
bm.stack.Push(ethutil.BigFalse)
}
case oLE:
x, y := bm.stack.Popn()
// x <= y
if x.Cmp(y) < 1 {
bm.stack.Push(ethutil.BigTrue)
} else {
bm.stack.Push(ethutil.BigFalse)
}
case oGT:
x, y := bm.stack.Popn()
// x > y
if x.Cmp(y) > 0 {
bm.stack.Push(ethutil.BigTrue)
} else {
bm.stack.Push(ethutil.BigFalse)
}
case oGE:
x, y := bm.stack.Popn()
// x >= y
if x.Cmp(y) > -1 {
bm.stack.Push(ethutil.BigTrue)
} else {
bm.stack.Push(ethutil.BigFalse)
}
case oNOT:
x, y := bm.stack.Popn()
// x != y
if x.Cmp(y) != 0 {
bm.stack.Push(ethutil.BigTrue)
} else {
bm.stack.Push(ethutil.BigFalse)
}
// Please note that the following code contains some
// ugly string casting. This will have to change to big
// ints. TODO :)
case oMYADDRESS:
bm.stack.Push(ethutil.BigD(tx.Hash()))
case oTXSENDER:
bm.stack.Push(ethutil.BigD(tx.Sender()))
case oTXVALUE:
bm.stack.Push(tx.Value)
case oTXDATAN:
bm.stack.Push(big.NewInt(int64(len(tx.Data))))
case oTXDATA:
v := bm.stack.Pop()
// v >= len(data)
if v.Cmp(big.NewInt(int64(len(tx.Data)))) >= 0 {
bm.stack.Push(ethutil.Big("0"))
} else {
bm.stack.Push(ethutil.Big(tx.Data[v.Uint64()]))
}
case oBLK_PREVHASH:
bm.stack.Push(ethutil.Big(block.PrevHash))
case oBLK_COINBASE:
bm.stack.Push(ethutil.Big(block.Coinbase))
case oBLK_TIMESTAMP:
bm.stack.Push(big.NewInt(block.Time))
case oBLK_NUMBER:
bm.stack.Push(blockInfo.Number)
case oBLK_DIFFICULTY:
bm.stack.Push(block.Difficulty)
case oBASEFEE:
// e = 10^21
e := big.NewInt(0).Exp(big.NewInt(10), big.NewInt(21), big.NewInt(0))
d := new(big.Rat)
d.SetInt(block.Difficulty)
c := new(big.Rat)
c.SetFloat64(0.5)
// d = diff / 0.5
d.Quo(d, c)
// base = floor(d)
base.Div(d.Num(), d.Denom())
x := new(big.Int)
x.Div(e, base)
// x = floor(10^21 / floor(diff^0.5))
bm.stack.Push(x)
case oSHA256, oSHA3, oRIPEMD160:
// This is probably save
// ceil(pop / 32)
length := int(math.Ceil(float64(bm.stack.Pop().Uint64()) / 32.0))
// New buffer which will contain the concatenated popped items
data := new(bytes.Buffer)
for i := 0; i < length; i++ {
// Encode the number to bytes and have it 32bytes long
num := ethutil.NumberToBytes(bm.stack.Pop().Bytes(), 256)
data.WriteString(string(num))
}
if op == oSHA256 {
bm.stack.Push(base.SetBytes(ethutil.Sha256Bin(data.Bytes())))
} else if op == oSHA3 {
bm.stack.Push(base.SetBytes(ethutil.Sha3Bin(data.Bytes())))
} else {
bm.stack.Push(base.SetBytes(ethutil.Ripemd160(data.Bytes())))
}
case oECMUL:
y := bm.stack.Pop()
x := bm.stack.Pop()
//n := bm.stack.Pop()
//if ethutil.Big(x).Cmp(ethutil.Big(y)) {
data := new(bytes.Buffer)
data.WriteString(x.String())
data.WriteString(y.String())
if secp256k1.VerifyPubkeyValidity(data.Bytes()) == 1 {
// TODO
} else {
// Invalid, push infinity
bm.stack.Push(ethutil.Big("0"))
bm.stack.Push(ethutil.Big("0"))
}
//} else {
// // Invalid, push infinity
// bm.stack.Push("0")
// bm.stack.Push("0")
//}
case oECADD:
case oECSIGN:
case oECRECOVER:
case oECVALID:
case oPUSH:
pc++
bm.stack.Push(bm.mem[strconv.Itoa(pc)])
case oPOP:
// Pop current value of the stack
bm.stack.Pop()
case oDUP:
// Dup top stack
x := bm.stack.Pop()
bm.stack.Push(x)
bm.stack.Push(x)
case oSWAP:
// Swap two top most values
x, y := bm.stack.Popn()
bm.stack.Push(y)
bm.stack.Push(x)
case oMLOAD:
x := bm.stack.Pop()
bm.stack.Push(bm.mem[x.String()])
case oMSTORE:
x, y := bm.stack.Popn()
bm.mem[x.String()] = y
case oSLOAD:
// Load the value in storage and push it on the stack
x := bm.stack.Pop()
// decode the object as a big integer
decoder := ethutil.NewRlpDecoder([]byte(contract.State().Get(x.String())))
if !decoder.IsNil() {
bm.stack.Push(decoder.AsBigInt())
} else {
bm.stack.Push(ethutil.BigFalse)
}
case oSSTORE:
// Store Y at index X
x, y := bm.stack.Popn()
contract.State().Update(x.String(), string(ethutil.Encode(y)))
case oJMP:
x := int(bm.stack.Pop().Uint64())
// Set pc to x - 1 (minus one so the incrementing at the end won't effect it)
pc = x
pc--
case oJMPI:
x := bm.stack.Pop()
// Set pc to x if it's non zero
if x.Cmp(ethutil.BigFalse) != 0 {
pc = int(x.Uint64())
pc--
}
case oIND:
bm.stack.Push(big.NewInt(int64(pc)))
case oEXTRO:
memAddr := bm.stack.Pop()
contractAddr := bm.stack.Pop().Bytes()
// Push the contract's memory on to the stack
bm.stack.Push(getContractMemory(block, contractAddr, memAddr))
case oBALANCE:
// Pushes the balance of the popped value on to the stack
d := block.State().Get(bm.stack.Pop().String())
ether := ethutil.NewEtherFromData([]byte(d))
bm.stack.Push(ether.Amount)
case oMKTX:
value, addr := bm.stack.Popn()
from, length := bm.stack.Popn()
j := 0
dataItems := make([]string, int(length.Uint64()))
for i := from.Uint64(); i < length.Uint64(); i++ {
dataItems[j] = string(bm.mem[strconv.Itoa(int(i))].Bytes())
j++
}
// TODO sign it?
tx := ethutil.NewTransaction(string(addr.Bytes()), value, dataItems)
// Add the transaction to the tx pool
bm.server.txPool.QueueTransaction(tx)
case oSUICIDE:
//addr := bm.stack.Pop()
}
pc++
}
bm.stack.Print()
}