public ImageOptionalHeader32(BinaryReader reader, UInt32 offset)
{
reader.BaseStream.Seek(offset, SeekOrigin.Begin);
// Standard fields.
Magic = reader.ReadUInt16();
MajorLinkerVersion = reader.ReadByte();
MinorLinkerVersion = reader.ReadByte();
SizeOfCode = reader.ReadUInt32();
SizeOfInitializedData = reader.ReadUInt32();
SizeOfUninitializedData = reader.ReadUInt32();
AddressOfEntryPoint = reader.ReadUInt32();
BaseOfCode = reader.ReadUInt32();
BaseOfData = reader.ReadUInt32();
// NT additional fields.
ImageBase = reader.ReadUInt32();
SectionAlignment = reader.ReadUInt32();
FileAlignment = reader.ReadUInt32();
MajorOperatingSystemVersion = reader.ReadUInt16();
MinorOperatingSystemVersion = reader.ReadUInt16();
MajorImageVersion = reader.ReadUInt16();
MinorImageVersion = reader.ReadUInt16();
MajorSubsystemVersion = reader.ReadUInt16();
MinorSubsystemVersion = reader.ReadUInt16();
Win32VersionValue = reader.ReadUInt32();
SizeOfImage = reader.ReadUInt32();
SizeOfHeaders = reader.ReadUInt32();
CheckSum = reader.ReadUInt32();
Subsystem = reader.ReadUInt16();
DllCharacteristics = reader.ReadUInt16();
SizeOfStackReserve = reader.ReadUInt32();
SizeOfStackCommit = reader.ReadUInt32();
SizeOfHeapReserve = reader.ReadUInt32();
SizeOfHeapCommit = reader.ReadUInt32();
LoaderFlags = reader.ReadUInt32();
NumberOfRvaAndSizes = reader.ReadUInt32();
// Load the data directories.
DataDirectory = new ImageDataDirectory[16];
DataDirectory[0] = new ImageDataDirectory(reader);
DataDirectory[1] = new ImageDataDirectory(reader);
DataDirectory[2] = new ImageDataDirectory(reader);
DataDirectory[3] = new ImageDataDirectory(reader);
DataDirectory[4] = new ImageDataDirectory(reader);
DataDirectory[5] = new ImageDataDirectory(reader);
DataDirectory[6] = new ImageDataDirectory(reader);
DataDirectory[7] = new ImageDataDirectory(reader);
DataDirectory[8] = new ImageDataDirectory(reader);
DataDirectory[9] = new ImageDataDirectory(reader);
DataDirectory[10] = new ImageDataDirectory(reader);
DataDirectory[11] = new ImageDataDirectory(reader);
DataDirectory[12] = new ImageDataDirectory(reader);
DataDirectory[13] = new ImageDataDirectory(reader);
DataDirectory[14] = new ImageDataDirectory(reader);
DataDirectory[15] = new ImageDataDirectory(reader);
}
/// <summary>
/// Gets the directory file offset.
/// </summary>
/// <param name="dataDirectoryOffset">The data directory offset.</param>
/// <returns>FileOffset value for the directory, -1 if not found.</returns>
public int GetDirectoryFileOffset(int dataDirectoryOffset)
{
// Get the desired data directory.
ImageDataDirectory dd = NTHeader.GetDataDirectory(dataDirectoryOffset);
// Find the section that contains the specified directory.
SectionHeader?section = FindContainingSection(dd.VirtualAddress);
// If we didn't find the section, return -1.
if (false == section.HasValue)
{
return(-1);
}
// Calculate the file offset.
return((int)(section.Value.PointerToRawData + (dd.VirtualAddress - section.Value.VirtualAddress)));
}
