2 * Copyright (c) 2002 Sergey Chaban <serge@wildwestsoftware.com>
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7 using System.Runtime.InteropServices;
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9 namespace Mono.PEToolkit {
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11 public class DOSHeader {
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13 private readonly int OpenSize = 60;
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14 private readonly int CloseSize = 64;
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16 private byte[] open_data; // First 60 bytes of data
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17 private byte[] close_data; // Last 64 bytes of data
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19 // File address of new exe header.
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20 private uint lfanew;
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27 public DOSHeader (BinaryReader reader)
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32 public uint Lfanew {
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33 get { return lfanew; }
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36 public void Read (BinaryReader reader)
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38 open_data = reader.ReadBytes (OpenSize);
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39 lfanew = reader.ReadUInt32 ();
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40 close_data = reader.ReadBytes (CloseSize);
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43 public void Write (BinaryWriter writer)
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45 writer.Write (open_data);
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46 writer.Write (lfanew);
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47 writer.Write (close_data);
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52 open_data = new byte[] { 0x4D, 0x5A, 0x0, 0x0, 0xE7, 0x0, 0x0, 0x0,
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53 0x4, 0x0, 0x0, 0x0, 0xFF, 0xFF, 0x0, 0x0,
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54 0xB8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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55 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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56 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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57 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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58 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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59 0x0, 0x0, 0x0, 0x0 };
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61 close_data = new byte[] { 0xE, 0x1F, 0xBA, 0xE, 0x0, 0xB4, 0x9, 0xCD,
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62 0x21, 0xB8, 0x1, 0x4C, 0xCD, 0x21,0x54, 0x68,
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63 0x69, 0x73, 0x20, 0x70, 0x72, 0x6F, 0x67, 0x72,
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64 0x61, 0x6D, 0x20, 0x63, 0x61, 0x6E, 0x6E, 0x6F,
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65 0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6E,
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66 0x20, 0x69, 0x6E, 0x20, 0x44, 0x4F, 0x53, 0x20,
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67 0x6D, 0x6F, 0x64, 0x65, 0x2E, 0xD, 0xD, 0xA,
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68 0x24, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 };
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74 /// <param name="writer"></param>
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75 public void Dump(TextWriter writer)
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78 "New header offset : {0}",
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79 lfanew + " (0x" + lfanew.ToString("X") + ")"
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85 /// <returns></returns>
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86 public override string ToString()
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88 StringWriter sw = new StringWriter();
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90 return sw.ToString();
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