/// ------------------------------------------------------------------------------------
/// <summary>
/// Processes the Optional Header (usually Image only)
/// </summary>
/// ------------------------------------------------------------------------------------
private void ProcessOptionalHeader()
{
long nOptHeaderBase = m_stream.Position;
short magicNumber = m_reader.ReadInt16();
if (magicNumber != 0x10b && magicNumber != 0x20b)
{
throw new ApplicationException("No valid magic number in Optional Header");
}
// Zero out checksum
m_stream.Position = nOptHeaderBase + 64;
m_writer.Write((int)0);
bool fPE32plus = (magicNumber == 0x20b);
m_stream.Position = nOptHeaderBase + (fPE32plus ? 108 : 92);
int nDirectories = m_reader.ReadInt32();
for (int i = 0; i < nDirectories; i++)
{
m_htDirectories[m_directoryNames[i]] =
new ImageDataDirectory(m_reader.ReadInt32(), m_reader.ReadInt32(), i);
}
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Processes one section.
/// </summary>
/// <param name="addressVirtual">The address when loaded.</param>
/// <param name="sizeVirtual">The virtual size (size on disk).</param>
/// ------------------------------------------------------------------------------------
private void ProcessSection(int addressVirtual, int sizeVirtual)
{
long nSectionBase = m_stream.Position;
foreach (DictionaryEntry entry in m_htDirectories)
{
m_stream.Position = nSectionBase;
ImageDataDirectory dir = (ImageDataDirectory)entry.Value;
if (dir.VirtualAddress >= addressVirtual &&
dir.VirtualAddress < addressVirtual + sizeVirtual)
{
m_stream.Position = dir.VirtualAddress - addressVirtual + nSectionBase;
switch (dir.Index)
{
case 0: // Export Table
case 1: // Import Table
m_stream.Position += 4;
OverwriteTimestamp();
break;
case 2: // Resource Table
ResourceProcessor resourceProcessor = new ResourceProcessor(m_stream,
m_reader, m_writer);
resourceProcessor.ProcessResourceSection(dir.VirtualAddress);
break;
case 6: // Debug
ProcessDebugInfo();
break;
case 14: // CLI Header
CLIFileProcessor cliFileProcessor = new CLIFileProcessor(m_stream,
m_reader, m_writer);
cliFileProcessor.ProcessCLIHeader(nSectionBase, addressVirtual);
break;
default:
break;
}
}
}
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Processes the Optional Header (usually Image only)
/// </summary>
/// ------------------------------------------------------------------------------------
private void ProcessOptionalHeader()
{
long nOptHeaderBase = m_stream.Position;
short magicNumber = m_reader.ReadInt16();
if (magicNumber != 0x10b && magicNumber != 0x20b)
throw new ApplicationException("No valid magic number in Optional Header");
// Zero out checksum
m_stream.Position = nOptHeaderBase + 64;
m_writer.Write((int)0);
bool fPE32plus = (magicNumber == 0x20b);
m_stream.Position = nOptHeaderBase + (fPE32plus ? 108 : 92);
int nDirectories = m_reader.ReadInt32();
for (int i = 0; i < nDirectories; i++)
{
m_htDirectories[m_directoryNames[i]] =
new ImageDataDirectory(m_reader.ReadInt32(), m_reader.ReadInt32(), i);
}
}
