2 files changed, 617 insertions, 0 deletions
diff --git a/cli/vendor/github.com/ethereum/go-ethereum/common/hexutil/hexutil.go b/cli/vendor/github.com/ethereum/go-ethereum/common/hexutil/hexutil.go
new file mode 100644
index 0000000..e0241f5
--- /dev/null
+++ b/cli/vendor/github.com/ethereum/go-ethereum/common/hexutil/hexutil.go
@@ -0,0 +1,241 @@
+// Copyright 2016 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+/*
+Package hexutil implements hex encoding with 0x prefix.
+This encoding is used by the Ethereum RPC API to transport binary data in JSON payloads.
+
+Encoding Rules
+
+All hex data must have prefix "0x".
+
+For byte slices, the hex data must be of even length. An empty byte slice
+encodes as "0x".
+
+Integers are encoded using the least amount of digits (no leading zero digits). Their
+encoding may be of uneven length. The number zero encodes as "0x0".
+*/
+package hexutil
+
+import (
+	"encoding/hex"
+	"fmt"
+	"math/big"
+	"strconv"
+)
+
+const uintBits = 32 << (uint64(^uint(0)) >> 63)
+
+// Errors
+var (
+	ErrEmptyString   = &decError{"empty hex string"}
+	ErrSyntax        = &decError{"invalid hex string"}
+	ErrMissingPrefix = &decError{"hex string without 0x prefix"}
+	ErrOddLength     = &decError{"hex string of odd length"}
+	ErrEmptyNumber   = &decError{"hex string \"0x\""}
+	ErrLeadingZero   = &decError{"hex number with leading zero digits"}
+	ErrUint64Range   = &decError{"hex number > 64 bits"}
+	ErrUintRange     = &decError{fmt.Sprintf("hex number > %d bits", uintBits)}
+	ErrBig256Range   = &decError{"hex number > 256 bits"}
+)
+
+type decError struct{ msg string }
+
+func (err decError) Error() string { return err.msg }
+
+// Decode decodes a hex string with 0x prefix.
+func Decode(input string) ([]byte, error) {
+	if len(input) == 0 {
+		return nil, ErrEmptyString
+	}
+	if !has0xPrefix(input) {
+		return nil, ErrMissingPrefix
+	}
+	b, err := hex.DecodeString(input[2:])
+	if err != nil {
+		err = mapError(err)
+	}
+	return b, err
+}
+
+// MustDecode decodes a hex string with 0x prefix. It panics for invalid input.
+func MustDecode(input string) []byte {
+	dec, err := Decode(input)
+	if err != nil {
+		panic(err)
+	}
+	return dec
+}
+
+// Encode encodes b as a hex string with 0x prefix.
+func Encode(b []byte) string {
+	enc := make([]byte, len(b)*2+2)
+	copy(enc, "0x")
+	hex.Encode(enc[2:], b)
+	return string(enc)
+}
+
+// DecodeUint64 decodes a hex string with 0x prefix as a quantity.
+func DecodeUint64(input string) (uint64, error) {
+	raw, err := checkNumber(input)
+	if err != nil {
+		return 0, err
+	}
+	dec, err := strconv.ParseUint(raw, 16, 64)
+	if err != nil {
+		err = mapError(err)
+	}
+	return dec, err
+}
+
+// MustDecodeUint64 decodes a hex string with 0x prefix as a quantity.
+// It panics for invalid input.
+func MustDecodeUint64(input string) uint64 {
+	dec, err := DecodeUint64(input)
+	if err != nil {
+		panic(err)
+	}
+	return dec
+}
+
+// EncodeUint64 encodes i as a hex string with 0x prefix.
+func EncodeUint64(i uint64) string {
+	enc := make([]byte, 2, 10)
+	copy(enc, "0x")
+	return string(strconv.AppendUint(enc, i, 16))
+}
+
+var bigWordNibbles int
+
+func init() {
+	// This is a weird way to compute the number of nibbles required for big.Word.
+	// The usual way would be to use constant arithmetic but go vet can't handle that.
+	b, _ := new(big.Int).SetString("FFFFFFFFFF", 16)
+	switch len(b.Bits()) {
+	case 1:
+		bigWordNibbles = 16
+	case 2:
+		bigWordNibbles = 8
+	default:
+		panic("weird big.Word size")
+	}
+}
+
+// DecodeBig decodes a hex string with 0x prefix as a quantity.
+// Numbers larger than 256 bits are not accepted.
+func DecodeBig(input string) (*big.Int, error) {
+	raw, err := checkNumber(input)
+	if err != nil {
+		return nil, err
+	}
+	if len(raw) > 64 {
+		return nil, ErrBig256Range
+	}
+	words := make([]big.Word, len(raw)/bigWordNibbles+1)
+	end := len(raw)
+	for i := range words {
+		start := end - bigWordNibbles
+		if start < 0 {
+			start = 0
+		}
+		for ri := start; ri < end; ri++ {
+			nib := decodeNibble(raw[ri])
+			if nib == badNibble {
+				return nil, ErrSyntax
+			}
+			words[i] *= 16
+			words[i] += big.Word(nib)
+		}
+		end = start
+	}
+	dec := new(big.Int).SetBits(words)
+	return dec, nil
+}
+
+// MustDecodeBig decodes a hex string with 0x prefix as a quantity.
+// It panics for invalid input.
+func MustDecodeBig(input string) *big.Int {
+	dec, err := DecodeBig(input)
+	if err != nil {
+		panic(err)
+	}
+	return dec
+}
+
+// EncodeBig encodes bigint as a hex string with 0x prefix.
+func EncodeBig(bigint *big.Int) string {
+	if sign := bigint.Sign(); sign == 0 {
+		return "0x0"
+	} else if sign > 0 {
+		return "0x" + bigint.Text(16)
+	} else {
+		return "-0x" + bigint.Text(16)[1:]
+	}
+}
+
+func has0xPrefix(input string) bool {
+	return len(input) >= 2 && input[0] == '0' && (input[1] == 'x' || input[1] == 'X')
+}
+
+func checkNumber(input string) (raw string, err error) {
+	if len(input) == 0 {
+		return "", ErrEmptyString
+	}
+	if !has0xPrefix(input) {
+		return "", ErrMissingPrefix
+	}
+	input = input[2:]
+	if len(input) == 0 {
+		return "", ErrEmptyNumber
+	}
+	if len(input) > 1 && input[0] == '0' {
+		return "", ErrLeadingZero
+	}
+	return input, nil
+}
+
+const badNibble = ^uint64(0)
+
+func decodeNibble(in byte) uint64 {
+	switch {
+	case in >= '0' && in <= '9':
+		return uint64(in - '0')
+	case in >= 'A' && in <= 'F':
+		return uint64(in - 'A' + 10)
+	case in >= 'a' && in <= 'f':
+		return uint64(in - 'a' + 10)
+	default:
+		return badNibble
+	}
+}
+
+func mapError(err error) error {
+	if err, ok := err.(*strconv.NumError); ok {
+		switch err.Err {
+		case strconv.ErrRange:
+			return ErrUint64Range
+		case strconv.ErrSyntax:
+			return ErrSyntax
+		}
+	}
+	if _, ok := err.(hex.InvalidByteError); ok {
+		return ErrSyntax
+	}
+	if err == hex.ErrLength {
+		return ErrOddLength
+	}
+	return err
+}
diff --git a/cli/vendor/github.com/ethereum/go-ethereum/common/hexutil/json.go b/cli/vendor/github.com/ethereum/go-ethereum/common/hexutil/json.go
new file mode 100644
index 0000000..50db208
--- /dev/null
+++ b/cli/vendor/github.com/ethereum/go-ethereum/common/hexutil/json.go
@@ -0,0 +1,376 @@
+// Copyright 2016 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package hexutil
+
+import (
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"math/big"
+	"reflect"
+	"strconv"
+)
+
+var (
+	bytesT  = reflect.TypeOf(Bytes(nil))
+	bigT    = reflect.TypeOf((*Big)(nil))
+	uintT   = reflect.TypeOf(Uint(0))
+	uint64T = reflect.TypeOf(Uint64(0))
+)
+
+// Bytes marshals/unmarshals as a JSON string with 0x prefix.
+// The empty slice marshals as "0x".
+type Bytes []byte
+
+// MarshalText implements encoding.TextMarshaler
+func (b Bytes) MarshalText() ([]byte, error) {
+	result := make([]byte, len(b)*2+2)
+	copy(result, `0x`)
+	hex.Encode(result[2:], b)
+	return result, nil
+}
+
+// UnmarshalJSON implements json.Unmarshaler.
+func (b *Bytes) UnmarshalJSON(input []byte) error {
+	if !isString(input) {
+		return errNonString(bytesT)
+	}
+	return wrapTypeError(b.UnmarshalText(input[1:len(input)-1]), bytesT)
+}
+
+// UnmarshalText implements encoding.TextUnmarshaler.
+func (b *Bytes) UnmarshalText(input []byte) error {
+	raw, err := checkText(input, true)
+	if err != nil {
+		return err
+	}
+	dec := make([]byte, len(raw)/2)
+	if _, err = hex.Decode(dec, raw); err != nil {
+		err = mapError(err)
+	} else {
+		*b = dec
+	}
+	return err
+}
+
+// String returns the hex encoding of b.
+func (b Bytes) String() string {
+	return Encode(b)
+}
+
+// ImplementsGraphQLType returns true if Bytes implements the specified GraphQL type.
+func (b Bytes) ImplementsGraphQLType(name string) bool { return name == "Bytes" }
+
+// UnmarshalGraphQL unmarshals the provided GraphQL query data.
+func (b *Bytes) UnmarshalGraphQL(input interface{}) error {
+	var err error
+	switch input := input.(type) {
+	case string:
+		data, err := Decode(input)
+		if err != nil {
+			return err
+		}
+		*b = data
+	default:
+		err = fmt.Errorf("unexpected type %T for Bytes", input)
+	}
+	return err
+}
+
+// UnmarshalFixedJSON decodes the input as a string with 0x prefix. The length of out
+// determines the required input length. This function is commonly used to implement the
+// UnmarshalJSON method for fixed-size types.
+func UnmarshalFixedJSON(typ reflect.Type, input, out []byte) error {
+	if !isString(input) {
+		return errNonString(typ)
+	}
+	return wrapTypeError(UnmarshalFixedText(typ.String(), input[1:len(input)-1], out), typ)
+}
+
+// UnmarshalFixedText decodes the input as a string with 0x prefix. The length of out
+// determines the required input length. This function is commonly used to implement the
+// UnmarshalText method for fixed-size types.
+func UnmarshalFixedText(typname string, input, out []byte) error {
+	raw, err := checkText(input, true)
+	if err != nil {
+		return err
+	}
+	if len(raw)/2 != len(out) {
+		return fmt.Errorf("hex string has length %d, want %d for %s", len(raw), len(out)*2, typname)
+	}
+	// Pre-verify syntax before modifying out.
+	for _, b := range raw {
+		if decodeNibble(b) == badNibble {
+			return ErrSyntax
+		}
+	}
+	hex.Decode(out, raw)
+	return nil
+}
+
+// UnmarshalFixedUnprefixedText decodes the input as a string with optional 0x prefix. The
+// length of out determines the required input length. This function is commonly used to
+// implement the UnmarshalText method for fixed-size types.
+func UnmarshalFixedUnprefixedText(typname string, input, out []byte) error {
+	raw, err := checkText(input, false)
+	if err != nil {
+		return err
+	}
+	if len(raw)/2 != len(out) {
+		return fmt.Errorf("hex string has length %d, want %d for %s", len(raw), len(out)*2, typname)
+	}
+	// Pre-verify syntax before modifying out.
+	for _, b := range raw {
+		if decodeNibble(b) == badNibble {
+			return ErrSyntax
+		}
+	}
+	hex.Decode(out, raw)
+	return nil
+}
+
+// Big marshals/unmarshals as a JSON string with 0x prefix.
+// The zero value marshals as "0x0".
+//
+// Negative integers are not supported at this time. Attempting to marshal them will
+// return an error. Values larger than 256bits are rejected by Unmarshal but will be
+// marshaled without error.
+type Big big.Int
+
+// MarshalText implements encoding.TextMarshaler
+func (b Big) MarshalText() ([]byte, error) {
+	return []byte(EncodeBig((*big.Int)(&b))), nil
+}
+
+// UnmarshalJSON implements json.Unmarshaler.
+func (b *Big) UnmarshalJSON(input []byte) error {
+	if !isString(input) {
+		return errNonString(bigT)
+	}
+	return wrapTypeError(b.UnmarshalText(input[1:len(input)-1]), bigT)
+}
+
+// UnmarshalText implements encoding.TextUnmarshaler
+func (b *Big) UnmarshalText(input []byte) error {
+	raw, err := checkNumberText(input)
+	if err != nil {
+		return err
+	}
+	if len(raw) > 64 {
+		return ErrBig256Range
+	}
+	words := make([]big.Word, len(raw)/bigWordNibbles+1)
+	end := len(raw)
+	for i := range words {
+		start := end - bigWordNibbles
+		if start < 0 {
+			start = 0
+		}
+		for ri := start; ri < end; ri++ {
+			nib := decodeNibble(raw[ri])
+			if nib == badNibble {
+				return ErrSyntax
+			}
+			words[i] *= 16
+			words[i] += big.Word(nib)
+		}
+		end = start
+	}
+	var dec big.Int
+	dec.SetBits(words)
+	*b = (Big)(dec)
+	return nil
+}
+
+// ToInt converts b to a big.Int.
+func (b *Big) ToInt() *big.Int {
+	return (*big.Int)(b)
+}
+
+// String returns the hex encoding of b.
+func (b *Big) String() string {
+	return EncodeBig(b.ToInt())
+}
+
+// ImplementsGraphQLType returns true if Big implements the provided GraphQL type.
+func (b Big) ImplementsGraphQLType(name string) bool { return name == "BigInt" }
+
+// UnmarshalGraphQL unmarshals the provided GraphQL query data.
+func (b *Big) UnmarshalGraphQL(input interface{}) error {
+	var err error
+	switch input := input.(type) {
+	case string:
+		return b.UnmarshalText([]byte(input))
+	case int32:
+		var num big.Int
+		num.SetInt64(int64(input))
+		*b = Big(num)
+	default:
+		err = fmt.Errorf("unexpected type %T for BigInt", input)
+	}
+	return err
+}
+
+// Uint64 marshals/unmarshals as a JSON string with 0x prefix.
+// The zero value marshals as "0x0".
+type Uint64 uint64
+
+// MarshalText implements encoding.TextMarshaler.
+func (b Uint64) MarshalText() ([]byte, error) {
+	buf := make([]byte, 2, 10)
+	copy(buf, `0x`)
+	buf = strconv.AppendUint(buf, uint64(b), 16)
+	return buf, nil
+}
+
+// UnmarshalJSON implements json.Unmarshaler.
+func (b *Uint64) UnmarshalJSON(input []byte) error {
+	if !isString(input) {
+		return errNonString(uint64T)
+	}
+	return wrapTypeError(b.UnmarshalText(input[1:len(input)-1]), uint64T)
+}
+
+// UnmarshalText implements encoding.TextUnmarshaler
+func (b *Uint64) UnmarshalText(input []byte) error {
+	raw, err := checkNumberText(input)
+	if err != nil {
+		return err
+	}
+	if len(raw) > 16 {
+		return ErrUint64Range
+	}
+	var dec uint64
+	for _, byte := range raw {
+		nib := decodeNibble(byte)
+		if nib == badNibble {
+			return ErrSyntax
+		}
+		dec *= 16
+		dec += nib
+	}
+	*b = Uint64(dec)
+	return nil
+}
+
+// String returns the hex encoding of b.
+func (b Uint64) String() string {
+	return EncodeUint64(uint64(b))
+}
+
+// ImplementsGraphQLType returns true if Uint64 implements the provided GraphQL type.
+func (b Uint64) ImplementsGraphQLType(name string) bool { return name == "Long" }
+
+// UnmarshalGraphQL unmarshals the provided GraphQL query data.
+func (b *Uint64) UnmarshalGraphQL(input interface{}) error {
+	var err error
+	switch input := input.(type) {
+	case string:
+		return b.UnmarshalText([]byte(input))
+	case int32:
+		*b = Uint64(input)
+	default:
+		err = fmt.Errorf("unexpected type %T for Long", input)
+	}
+	return err
+}
+
+// Uint marshals/unmarshals as a JSON string with 0x prefix.
+// The zero value marshals as "0x0".
+type Uint uint
+
+// MarshalText implements encoding.TextMarshaler.
+func (b Uint) MarshalText() ([]byte, error) {
+	return Uint64(b).MarshalText()
+}
+
+// UnmarshalJSON implements json.Unmarshaler.
+func (b *Uint) UnmarshalJSON(input []byte) error {
+	if !isString(input) {
+		return errNonString(uintT)
+	}
+	return wrapTypeError(b.UnmarshalText(input[1:len(input)-1]), uintT)
+}
+
+// UnmarshalText implements encoding.TextUnmarshaler.
+func (b *Uint) UnmarshalText(input []byte) error {
+	var u64 Uint64
+	err := u64.UnmarshalText(input)
+	if u64 > Uint64(^uint(0)) || err == ErrUint64Range {
+		return ErrUintRange
+	} else if err != nil {
+		return err
+	}
+	*b = Uint(u64)
+	return nil
+}
+
+// String returns the hex encoding of b.
+func (b Uint) String() string {
+	return EncodeUint64(uint64(b))
+}
+
+func isString(input []byte) bool {
+	return len(input) >= 2 && input[0] == '"' && input[len(input)-1] == '"'
+}
+
+func bytesHave0xPrefix(input []byte) bool {
+	return len(input) >= 2 && input[0] == '0' && (input[1] == 'x' || input[1] == 'X')
+}
+
+func checkText(input []byte, wantPrefix bool) ([]byte, error) {
+	if len(input) == 0 {
+		return nil, nil // empty strings are allowed
+	}
+	if bytesHave0xPrefix(input) {
+		input = input[2:]
+	} else if wantPrefix {
+		return nil, ErrMissingPrefix
+	}
+	if len(input)%2 != 0 {
+		return nil, ErrOddLength
+	}
+	return input, nil
+}
+
+func checkNumberText(input []byte) (raw []byte, err error) {
+	if len(input) == 0 {
+		return nil, nil // empty strings are allowed
+	}
+	if !bytesHave0xPrefix(input) {
+		return nil, ErrMissingPrefix
+	}
+	input = input[2:]
+	if len(input) == 0 {
+		return nil, ErrEmptyNumber
+	}
+	if len(input) > 1 && input[0] == '0' {
+		return nil, ErrLeadingZero
+	}
+	return input, nil
+}
+
+func wrapTypeError(err error, typ reflect.Type) error {
+	if _, ok := err.(*decError); ok {
+		return &json.UnmarshalTypeError{Value: err.Error(), Type: typ}
+	}
+	return err
+}
+
+func errNonString(typ reflect.Type) error {
+	return &json.UnmarshalTypeError{Value: "non-string", Type: typ}
+}