-\feffusing System;
+\feff/**
+ * Novacoin classes library
+ * Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
+
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+using System;
using System.Collections.Generic;
-using System.Linq;
using System.Text;
namespace Novacoin
{
- public class InteropException : Exception
- {
- public InteropException()
- {
- }
-
- public InteropException(string message)
- : base(message)
- {
- }
-
- public InteropException(string message, Exception inner)
- : base(message, inner)
- {
- }
- }
-
+ /// <summary>
+ /// Miscellaneous functions
+ /// </summary>
public class Interop
{
- public static byte[] ReverseIfLE(byte[] source)
- {
- if (BitConverter.IsLittleEndian)
- {
- Array.Reverse(source);
- }
-
- return source;
- }
-
+ /// <summary>
+ /// Convert array of unsigned integers to array of bytes.
+ /// </summary>
+ /// <param name="values">Array of unsigned integer values.</param>
+ /// <returns>Byte array</returns>
public static byte[] LEBytes(uint[] values)
{
- if (BitConverter.IsLittleEndian)
- {
- byte[] result = new byte[values.Length * sizeof(uint)];
- Buffer.BlockCopy(values, 0, result, 0, result.Length);
+ var result = new byte[values.Length * sizeof(uint)];
+ Buffer.BlockCopy(values, 0, result, 0, result.Length);
- return result;
- }
- else
- {
- List<byte> result = new List<byte>();
-
- foreach (uint i in values)
- {
- result.AddRange(LEBytes(i));
- }
-
- return result.ToArray();
- }
+ return result;
}
+ /// <summary>
+ /// Convert byte array to array of unsigned integers.
+ /// </summary>
+ /// <param name="bytes">Byte array.</param>
+ /// <returns>Array of integers</returns>
public static uint[] ToUInt32Array(byte[] bytes)
{
- if (BitConverter.IsLittleEndian)
- {
- uint[] result = new uint[bytes.Length / sizeof(uint)];
- Buffer.BlockCopy(bytes, 0, result, 0, bytes.Length);
-
- return result;
- }
- else
- {
- List<uint> result = new List<uint>();
-
- for (int i = 0; i < bytes.Length; i += 4)
- {
- result.Add(LEBytesToUInt32(bytes.Skip(i).Take(4).ToArray()));
- }
-
- return result.ToArray();
- }
- }
-
- public static byte[] LEBytes(ushort n)
- {
- byte[] resultBytes = BitConverter.GetBytes(n);
-
- if (!BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on big-endian machine
- Array.Reverse(resultBytes);
- }
-
- return resultBytes;
- }
-
- public static byte[] LEBytes(uint n)
- {
- byte[] resultBytes = BitConverter.GetBytes(n);
-
- if (!BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on big-endian machine
- Array.Reverse(resultBytes);
- }
-
- return resultBytes;
- }
-
- public static byte[] LEBytes(ulong n)
- {
- byte[] resultBytes = BitConverter.GetBytes(n);
+ var result = new uint[bytes.Length / sizeof(uint)];
+ Buffer.BlockCopy(bytes, 0, result, 0, bytes.Length);
- if (!BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on big-endian machine
- Array.Reverse(resultBytes);
- }
-
- return resultBytes;
+ return result;
}
- public static byte[] BEBytes(ushort n)
+ /// <summary>
+ /// Reverse byte array
+ /// </summary>
+ /// <param name="source">Source array</param>
+ /// <returns>Result array</returns>
+ public static byte[] ReverseBytes(byte[] source)
{
- byte[] resultBytes = BitConverter.GetBytes(n);
+ var b = new byte[source.Length];
- if (BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on little-endian machine
- Array.Reverse(resultBytes);
- }
+ source.CopyTo(b, 0);
- return resultBytes;
- }
+ Array.Reverse(b);
- public static byte[] BEBytes(uint n)
- {
- byte[] resultBytes = BitConverter.GetBytes(n);
-
- if (BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on little-endian machine
- Array.Reverse(resultBytes);
- }
-
- return resultBytes;
+ return b;
}
- public static byte[] BEBytes(ulong n)
+ public static byte[] HexToArray(string hex)
{
- byte[] resultBytes = BitConverter.GetBytes(n);
+ int nChars = hex.Length;
+ var bytes = new byte[nChars / 2];
- if (BitConverter.IsLittleEndian)
+ for (int i = 0; i < nChars; i += 2)
{
- // Reverse array if we are on little-endian machine
- Array.Reverse(resultBytes);
+ bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
}
- return resultBytes;
+ return bytes;
}
- public static ushort LEBytesToUInt16(byte[] bytes)
+ public static byte[] TrimArray(byte[] bytes)
{
- if (bytes.Length != sizeof(ushort))
+ int trimStart = bytes.Length - 1;
+ while (trimStart >= 0 && bytes[trimStart] == 0)
{
- throw new InteropException("Array size doesn't match the ushort data type.");
+ trimStart--;
}
- if (!BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on big-endian machine
- Array.Reverse(bytes);
- }
+ byte[] result = new byte[trimStart + 1];
+ Array.Copy(bytes, 0, result, 0, trimStart + 1);
- return BitConverter.ToUInt16(bytes, 0);
+ return result;
}
- public static uint LEBytesToUInt32(byte[] bytes)
+ public static string ToHex(byte[] bytes)
{
- if (bytes.Length != sizeof(uint))
- {
- throw new InteropException("Array size doesn't match the uint data type.");
- }
-
- if (!BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on big-endian machine
- Array.Reverse(bytes);
- }
-
- return BitConverter.ToUInt32(bytes, 0);
- }
-
- public static ulong LEBytesToUInt64(byte[] bytes)
- {
- if (bytes.Length != sizeof(ulong))
- {
- throw new InteropException("Array size doesn't match the ulong data type.");
- }
-
- if (!BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on big-endian machine
- Array.Reverse(bytes);
- }
-
- return BitConverter.ToUInt64(bytes, 0);
- }
-
- public static ushort BEBytesToUInt16(byte[] bytes)
- {
- if (bytes.Length != sizeof(ushort))
- {
- throw new InteropException("Array size doesn't match the ushort data type.");
- }
-
- if (BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on little-endian machine
- Array.Reverse(bytes);
- }
-
- return BitConverter.ToUInt16(bytes, 0);
- }
-
- public static uint BEBytesToUInt32(byte[] bytes)
- {
- if (bytes.Length != sizeof(uint))
- {
- throw new InteropException("Array size doesn't match the uint data type.");
- }
-
- if (BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on little-endian machine
- Array.Reverse(bytes);
- }
-
- return BitConverter.ToUInt32(bytes, 0);
- }
-
- public static ulong BEBytesToUInt64(byte[] bytes)
- {
- if (bytes.Length != sizeof(ulong))
- {
- throw new InteropException("Array size doesn't match the ulong data type.");
- }
-
- if (BitConverter.IsLittleEndian)
- {
- // Reverse array if we are on little-endian machine
- Array.Reverse(bytes);
- }
-
- return BitConverter.ToUInt64(bytes, 0);
- }
-
- public static IEnumerable<byte> ParseHex(string hex)
- {
- return Enumerable.Range(0, hex.Length)
- .Where(x => x % 2 == 0)
- .Select(x => Convert.ToByte(hex.Substring(x, 2), 16));
- }
-
- public static string ToHex(IEnumerable<byte> bytes)
- {
- StringBuilder sb = new StringBuilder();
- foreach (byte b in bytes)
+ var sb = new StringBuilder();
+ foreach (var b in bytes)
{
sb.AppendFormat("{0:x2}", b);
}
return sb.ToString();
}
- public static void UInt16ToBE(ushort n, byte[] bs)
+ public static uint GetTime()
{
- bs[0] = (byte)(n >> 8);
- bs[1] = (byte)(n);
+ return (uint)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds;
}
-
- public static ushort BEToUInt16(byte[] bs)
- {
- ushort n = (ushort)(bs[0] << 8);
- n |= (ushort)bs[1];
- return n;
- }
-
- public static ushort BEToUInt16(byte[] bs, int off)
- {
- ushort n = (ushort)(bs[off] << 8);
- n |= (ushort)bs[++off];
- return n;
- }
-
- public static void UInt16ToLE(ushort n, byte[] bs)
- {
- bs[0] = (byte)(n);
- bs[1] = (byte)(n >> 8);
- }
-
- public static void UInt16ToLE(ushort n, byte[] bs, int off)
- {
- bs[off] = (byte)(n);
- bs[++off] = (byte)(n >> 8);
- }
-
- public static ushort LEToUInt16(byte[] bs)
- {
- ushort n = (ushort)bs[0];
- n |= (ushort)(bs[1] << 8);
- return n;
- }
-
- public static ushort LEToUInt16(byte[] bs, int off)
- {
- ushort n = (ushort)bs[off];
- n |= (ushort)(bs[++off] << 8);
- return n;
- }
-
- public static void UInt32ToBE(uint n, byte[] bs)
- {
- bs[0] = (byte)(n >> 24);
- bs[1] = (byte)(n >> 16);
- bs[2] = (byte)(n >> 8);
- bs[3] = (byte)(n);
- }
-
- public static void UInt32ToBE(uint n, byte[] bs, int off)
- {
- bs[off] = (byte)(n >> 24);
- bs[++off] = (byte)(n >> 16);
- bs[++off] = (byte)(n >> 8);
- bs[++off] = (byte)(n);
- }
-
- public static uint BEToUInt32(byte[] bs)
- {
- uint n = (uint)bs[0] << 24;
- n |= (uint)bs[1] << 16;
- n |= (uint)bs[2] << 8;
- n |= (uint)bs[3];
- return n;
- }
-
- public static uint BEToUInt32(byte[] bs, int off)
- {
- uint n = (uint)bs[off] << 24;
- n |= (uint)bs[++off] << 16;
- n |= (uint)bs[++off] << 8;
- n |= (uint)bs[++off];
- return n;
- }
-
- public static ulong BEToUInt64(byte[] bs)
- {
- uint hi = BEToUInt32(bs);
- uint lo = BEToUInt32(bs, 4);
- return ((ulong)hi << 32) | (ulong)lo;
- }
-
- public static ulong BEToUInt64(byte[] bs, int off)
- {
- uint hi = BEToUInt32(bs, off);
- uint lo = BEToUInt32(bs, off + 4);
- return ((ulong)hi << 32) | (ulong)lo;
- }
-
- public static void UInt64ToBE(ulong n, byte[] bs)
- {
- UInt32ToBE((uint)(n >> 32), bs);
- UInt32ToBE((uint)(n), bs, 4);
- }
-
- public static void UInt64ToBE(ulong n, byte[] bs, int off)
- {
- UInt32ToBE((uint)(n >> 32), bs, off);
- UInt32ToBE((uint)(n), bs, off + 4);
- }
-
- public static void UInt32ToLE(uint n, byte[] bs)
- {
- bs[0] = (byte)(n);
- bs[1] = (byte)(n >> 8);
- bs[2] = (byte)(n >> 16);
- bs[3] = (byte)(n >> 24);
- }
-
- public static void UInt32ToLE(uint n, byte[] bs, int off)
- {
- bs[off] = (byte)(n);
- bs[++off] = (byte)(n >> 8);
- bs[++off] = (byte)(n >> 16);
- bs[++off] = (byte)(n >> 24);
- }
-
- public static uint LEToUInt32(byte[] bs)
- {
- uint n = (uint)bs[0];
- n |= (uint)bs[1] << 8;
- n |= (uint)bs[2] << 16;
- n |= (uint)bs[3] << 24;
- return n;
- }
-
- public static uint LEToUInt32(byte[] bs, int off)
- {
- uint n = (uint)bs[off];
- n |= (uint)bs[++off] << 8;
- n |= (uint)bs[++off] << 16;
- n |= (uint)bs[++off] << 24;
- return n;
- }
-
- public static ulong LEToUInt64(byte[] bs)
- {
- uint lo = LEToUInt32(bs);
- uint hi = LEToUInt32(bs, 4);
- return ((ulong)hi << 32) | (ulong)lo;
- }
-
- public static ulong LEToUInt64(byte[] bs, int off)
- {
- uint lo = LEToUInt32(bs, off);
- uint hi = LEToUInt32(bs, off + 4);
- return ((ulong)hi << 32) | (ulong)lo;
- }
-
- public static void UInt64ToLE(ulong n, byte[] bs)
- {
- UInt32ToLE((uint)(n), bs);
- UInt32ToLE((uint)(n >> 32), bs, 4);
- }
-
- public static void UInt64ToLE(ulong n, byte[] bs, int off)
- {
- UInt32ToLE((uint)(n), bs, off);
- UInt32ToLE((uint)(n >> 32), bs, off + 4);
- }
-
}
}
git://git.novaco.in / NovacoinLibrary.git / blobdiff