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55 lines
2.1 KiB
55 lines
2.1 KiB
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IllusionInjector.Utilities
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{
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public static class LoneFunctions
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{
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public static byte[] StringToByteArray(string hex)
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{
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int NumberChars = hex.Length;
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byte[] bytes = new byte[NumberChars / 2];
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for (int i = 0; i < NumberChars; i += 2)
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bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
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return bytes;
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}
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// Copyright (c) 2008-2013 Hafthor Stefansson
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// Distributed under the MIT/X11 software license
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// Ref: http://www.opensource.org/licenses/mit-license.php.
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// From: https://stackoverflow.com/a/8808245/3117125
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public static unsafe bool UnsafeCompare(byte[] a1, byte[] a2)
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{
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if (a1 == a2) return true;
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if (a1 == null || a2 == null || a1.Length != a2.Length)
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return false;
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fixed (byte* p1 = a1, p2 = a2)
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{
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byte* x1 = p1, x2 = p2;
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int l = a1.Length;
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for (int i = 0; i < l / 8; i++, x1 += 8, x2 += 8)
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if (*((long*)x1) != *((long*)x2)) return false;
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if ((l & 4) != 0) { if (*((int*)x1) != *((int*)x2)) return false; x1 += 4; x2 += 4; }
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if ((l & 2) != 0) { if (*((short*)x1) != *((short*)x2)) return false; x1 += 2; x2 += 2; }
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if ((l & 1) != 0) if (*((byte*)x1) != *((byte*)x2)) return false;
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return true;
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}
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}
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public static string GetRelativePath(string filespec, string folder)
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{
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Uri pathUri = new Uri(filespec);
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// Folders must end in a slash
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if (!folder.EndsWith(Path.DirectorySeparatorChar.ToString()))
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{
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folder += Path.DirectorySeparatorChar;
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}
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Uri folderUri = new Uri(folder);
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return Uri.UnescapeDataString(folderUri.MakeRelativeUri(pathUri).ToString().Replace('/', Path.DirectorySeparatorChar));
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}
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}
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}
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