ClassAssistance.Slave/Helper/Native/Impl/PeHeaderReader.cs

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using System;
using System.IO;
using System.Runtime.InteropServices;

namespace ClassAssistance.Slave.Helper.Native.Impl
{
    /// <summary>
    /// From http://code.cheesydesign.com/?p=572
    /// </summary>
    public class PeHeaderReader
    {
        #region File Header Structures

        public struct IMAGE_DOS_HEADER
        {      // DOS .EXE header
            public UInt16 e_magic;              // Magic number
            public UInt16 e_cblp;               // Bytes on last page of file
            public UInt16 e_cp;                 // Pages in file
            public UInt16 e_crlc;               // Relocations
            public UInt16 e_cparhdr;            // Size of header in paragraphs
            public UInt16 e_minalloc;           // Minimum extra paragraphs needed
            public UInt16 e_maxalloc;           // Maximum extra paragraphs needed
            public UInt16 e_ss;                 // Initial (relative) SS value
            public UInt16 e_sp;                 // Initial SP value
            public UInt16 e_csum;               // Checksum
            public UInt16 e_ip;                 // Initial IP value
            public UInt16 e_cs;                 // Initial (relative) CS value
            public UInt16 e_lfarlc;             // File address of relocation table
            public UInt16 e_ovno;               // Overlay number
            public UInt16 e_res_0;              // Reserved words
            public UInt16 e_res_1;              // Reserved words
            public UInt16 e_res_2;              // Reserved words
            public UInt16 e_res_3;              // Reserved words
            public UInt16 e_oemid;              // OEM identifier (for e_oeminfo)
            public UInt16 e_oeminfo;            // OEM information; e_oemid specific
            public UInt16 e_res2_0;             // Reserved words
            public UInt16 e_res2_1;             // Reserved words
            public UInt16 e_res2_2;             // Reserved words
            public UInt16 e_res2_3;             // Reserved words
            public UInt16 e_res2_4;             // Reserved words
            public UInt16 e_res2_5;             // Reserved words
            public UInt16 e_res2_6;             // Reserved words
            public UInt16 e_res2_7;             // Reserved words
            public UInt16 e_res2_8;             // Reserved words
            public UInt16 e_res2_9;             // Reserved words
            public UInt32 e_lfanew;             // File address of new exe header
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct IMAGE_DATA_DIRECTORY
        {
            public UInt32 VirtualAddress;
            public UInt32 Size;
        }

        [StructLayout(LayoutKind.Sequential, Pack = 1)]
        public struct IMAGE_OPTIONAL_HEADER32
        {
            public UInt16 Magic;
            public Byte MajorLinkerVersion;