public CoffOptionalHeader32Plus(PE32Magic magic, BinaryReader rdr)
{
Magic = magic;
StandardFields = new CoffStandardFields32Plus(rdr);
WindowsFields = new CoffWindowsFields32Plus(rdr);
DataDirectories = new CoffImageDataDirectory[WindowsFields.NumberOfRvaAndSizes];
for (var i = 0; i < WindowsFields.NumberOfRvaAndSizes; i++)
{
DataDirectories[i].VirtualAddress = rdr.ReadUInt32();
DataDirectories[i].Size = rdr.ReadUInt32();
}
}
private void Load(Stream stream)
{
BinaryReader rdr = new BinaryReader(stream);
////////////////////////////////////
// The DOS Stub and PE Offset marker
DosHeader = new DosHeader(rdr);
PEOffset = DosHeader.NewExeHeaderAddress; // this is at 0x3C
rdr.BaseStream.Seek(PEOffset, SeekOrigin.Begin);
////////////////////////////////////
// The COFF File Header
PESignature = rdr.ReadBytes(4);
if (!IsPESignature(PESignature))
{
throw new FormatException("The specified file does not contain a PE signature.");
}
CoffFileHeader = new CoffFileHeader(rdr);
long offsetEndOfCoffFileHeader = rdr.BaseStream.Position;
////////////////////////////////////
// The Optional Header
PE32Magic magic = (PE32Magic)rdr.ReadUInt16();
switch (magic)
{
case PE32Magic.PE32:
// Ensure the Optional Header is big enough for the minimum amount of data
// Standard fields: 28 bytes
// Windows fields: 68 bytes
// Total: 92 bytes
if (CoffFileHeader.SizeOfOptionalHeader < 96)
{
String msg = String.Format("The specified file's declared Optional Header size of {0} bytes is smaller than the minimum of 96 required bytes.", CoffFileHeader.SizeOfOptionalHeader);
throw new FormatException(msg);
}
OptionalHeader32 = new CoffOptionalHeader32(magic, rdr);
break;
case PE32Magic.PE32Plus:
// Standard fields: 24 bytes
// Windows fields: 88 bytes
// Total: 112 bytes
if (CoffFileHeader.SizeOfOptionalHeader < 112)
{
String msg = String.Format("The specified file's declared Optional Header size of {0} bytes is smaller than the minimum of 112 required bytes.", CoffFileHeader.SizeOfOptionalHeader);
throw new FormatException(msg);
}
OptionalHeader32Plus = new CoffOptionalHeader32Plus(magic, rdr);
break;
case PE32Magic.RomImage:
default:
OptionalHeader = rdr.ReadBytes(CoffFileHeader.SizeOfOptionalHeader);
break;
}
long offsetEndOfOptionalHeader = rdr.BaseStream.Position;
// by now we're at the end of the Optional Header, but let's make sure
if (offsetEndOfOptionalHeader != offsetEndOfCoffFileHeader + CoffFileHeader.SizeOfOptionalHeader)
{
// error condition
}
///////////////////////////////
// The Section Table
SectionTable = new SectionTableEntry[CoffFileHeader.NofSections];
for (int i = 0; i < SectionTable.Length; i++)
{
SectionTable[i] = new SectionTableEntry(rdr);
}
}
