58 lines
1.7 KiB
C#
58 lines
1.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2019 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System;
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using System.IO;
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namespace fixheader
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{
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class fixheader
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{
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static byte[] data;
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static int peOffset;
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static void Main(string[] args)
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{
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Console.WriteLine("fixheader {0}", args[0]);
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data = File.ReadAllBytes(args[0]);
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peOffset = BitConverter.ToInt32(data, 0x3c);
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var corHeaderRva = BitConverter.ToInt32(data, peOffset + 20 + 100 + 14 * 8);
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var corHeaderOffset = RvaToOffset(corHeaderRva);
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data[corHeaderOffset + 16] |= 2;
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// Set Flag "Application can handle large (>2GB) addresses (/LARGEADDRESSAWARE)"
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data[peOffset + 4 + 18] |= 0x20;
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File.WriteAllBytes(args[0], data);
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}
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static int RvaToOffset(int va)
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{
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var numSections = BitConverter.ToInt16(data, peOffset + 6);
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var numDataDirectories = BitConverter.ToInt32(data, peOffset + 24 + 92);
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var sectionTableStart = peOffset + 24 + 96 + 8 * numDataDirectories;
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for (var i = 0; i < numSections; i++)
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{
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var virtualSize = BitConverter.ToInt32(data, sectionTableStart + 40 * i + 8);
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var virtualAddr = BitConverter.ToInt32(data, sectionTableStart + 40 * i + 12);
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var fileOffset = BitConverter.ToInt32(data, sectionTableStart + 40 * i + 20);
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if (va >= virtualAddr && va < virtualAddr + virtualSize)
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return va - virtualAddr + fileOffset;
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}
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return 0;
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}
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}
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}
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