alexbosworth

//  Copyright (c) 2017 Alex Bosworth
//  Copyright (c) 2017 Pieter Wuille
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//

alexbosworth

/** Transaction input
 */
struct TransactionInput {
  /** Final sequence number marking the input as final
   */
  static let finalSequence = UInt32.max

  /** Spending output
   */
  let outpoint: Outpoint

alexbosworth

import Foundation

/** Outpoint
 */
struct Outpoint {
  /** Index
   */
  let index: UInt32
  
  /** Number of bytes for the outpoint index

alexbosworth

import Foundation

/** Can be included after this time marker
 */
enum Locktime {
  case date(Date)
  case height(Int)
  
  /** Number of bytes
   */

alexbosworth

/** Compact Size UInt
 */
enum CompactSizeUInt {
  case uint8(UInt8), uint16(UInt16), uint32(UInt32), uint64(UInt64)
  
  // MARK: - Init
  
  /** Create from hex string
   */
  init(from hex: String) throws {

alexbosworth

/** Compact size uint marker byte
 */
enum CompactSizeMarker: Byte {
  case uint8, uint16 = 253, uint32, uint64
  
  /** Byte length of discriminant
   */
  static let discriminantByteLength = 1
  
  /** Hex byte length

alexbosworth

/** Extensions to Data
 */
extension Data {
  /** Create data from hex string
   */
  init(hex: String) throws {
    var bytes = Array<Byte>(repeating: Byte(), count: (hex.unicodeScalars.count + 1) >> 1)

    try hex.unicodeScalars.enumerated().forEach { index, scalar in
      var nibble = try scalar.hexNibble()

alexbosworth

/** Extensions to UnicodeScalar
 */
extension UnicodeScalar {
  /** Unicode scalar errors
   */
  enum UnicodeScalarError: String, Error {
    case illegalHexValue
  }

  /** Get the byte value of a hex nibble

alexbosworth

package main

import (
	"io"
	"os"
	"strings"
)

type rot13Reader struct {
	r io.Reader

alexbosworth

package main

import (
	"fmt"
)

type IPAddr [4]byte

func (ip IPAddr) String() string {
	str := ""