/// <summary>
/// Create a standalone portable PDB <see cref="MetaData"/> instance
/// </summary>
/// <param name="mdStream">Metadata stream</param>
/// <param name="verify"><c>true</c> if we should verify that it's a .NET PE file</param>
/// <returns>A new <see cref="MetaData"/> instance</returns>
internal static MetaData CreateStandalonePortablePDB(IImageStream mdStream, bool verify)
{
MetaData md = null;
try {
var mdHeader = new MetaDataHeader(mdStream, verify);
if (verify)
{
foreach (var sh in mdHeader.StreamHeaders)
{
if (sh.Offset + sh.StreamSize < sh.Offset || sh.Offset + sh.StreamSize > mdStream.Length)
{
throw new BadImageFormatException("Invalid stream header");
}
}
}
switch (GetMetaDataType(mdHeader.StreamHeaders))
{
case MetaDataType.Compressed:
md = new CompressedMetaData(mdHeader, true);
break;
case MetaDataType.ENC:
md = new ENCMetaData(mdHeader, true);
break;
default:
throw new BadImageFormatException("No #~ or #- stream found");
}
md.Initialize(mdStream);
return(md);
}
catch {
if (md != null)
{
md.Dispose();
}
throw;
}
}
/// <summary>
/// Create a <see cref="DotNetFile"/> instance
/// </summary>
/// <param name="peImage">The PE image</param>
/// <param name="verify"><c>true</c> if we should verify that it's a .NET PE file</param>
/// <returns>A new <see cref="DotNetFile"/> instance</returns>
public static DotNetFile Load(IPEImage peImage, bool verify) {
IImageStream cor20HeaderStream = null, mdHeaderStream = null;
MetaData md = null;
try {
var dotNetDir = peImage.ImageNTHeaders.OptionalHeader.DataDirectories[14];
if (dotNetDir.VirtualAddress == 0)
throw new BadImageFormatException(".NET data directory RVA is 0");
if (dotNetDir.Size < 0x48)
throw new BadImageFormatException(".NET data directory size < 0x48");
var cor20Header = new ImageCor20Header(cor20HeaderStream = peImage.CreateStream(dotNetDir.VirtualAddress, 0x48), verify);
if (cor20Header.MetaData.VirtualAddress == 0)
throw new BadImageFormatException(".NET MetaData RVA is 0");
if (cor20Header.MetaData.Size < 16)
throw new BadImageFormatException(".NET MetaData size is too small");
var mdSize = cor20Header.MetaData.Size;
var mdRva = cor20Header.MetaData.VirtualAddress;
var mdHeader = new MetaDataHeader(mdHeaderStream = peImage.CreateStream(mdRva, mdSize), verify);
if (verify) {
foreach (var sh in mdHeader.StreamHeaders) {
if (sh.Offset + sh.StreamSize < sh.Offset || sh.Offset + sh.StreamSize > mdSize)
throw new BadImageFormatException("Invalid stream header");
}
}
switch (GetMetaDataType(mdHeader.StreamHeaders)) {
case MetaDataType.Compressed:
md = new CompressedMetaData(peImage, cor20Header, mdHeader);
break;
case MetaDataType.ENC:
md = new ENCMetaData(peImage, cor20Header, mdHeader);
break;
default:
throw new BadImageFormatException("No #~ or #- stream found");
}
md.Initialize();
return new DotNetFile(md);
}
catch {
if (md != null)
md.Dispose();
throw;
}
finally {
if (cor20HeaderStream != null)
cor20HeaderStream.Dispose();
if (mdHeaderStream != null)
mdHeaderStream.Dispose();
}
}
/// <summary>
/// Create a <see cref="MetaData"/> instance
/// </summary>
/// <param name="peImage">The PE image</param>
/// <param name="verify"><c>true</c> if we should verify that it's a .NET PE file</param>
/// <returns>A new <see cref="MetaData"/> instance</returns>
internal static MetaData Create(IPEImage peImage, bool verify)
{
IImageStream cor20HeaderStream = null, mdHeaderStream = null;
MetaData md = null;
try {
var dotNetDir = peImage.ImageNTHeaders.OptionalHeader.DataDirectories[14];
if (dotNetDir.VirtualAddress == 0)
{
throw new BadImageFormatException(".NET data directory RVA is 0");
}
if (dotNetDir.Size < 0x48)
{
throw new BadImageFormatException(".NET data directory size < 0x48");
}
var cor20Header = new ImageCor20Header(cor20HeaderStream = peImage.CreateStream(dotNetDir.VirtualAddress, 0x48), verify);
if (cor20Header.MetaData.VirtualAddress == 0)
{
throw new BadImageFormatException(".NET MetaData RVA is 0");
}
if (cor20Header.MetaData.Size < 16)
{
throw new BadImageFormatException(".NET MetaData size is too small");
}
var mdSize = cor20Header.MetaData.Size;
var mdRva = cor20Header.MetaData.VirtualAddress;
var mdHeader = new MetaDataHeader(mdHeaderStream = peImage.CreateStream(mdRva, mdSize), verify);
if (verify)
{
foreach (var sh in mdHeader.StreamHeaders)
{
if (sh.Offset + sh.StreamSize < sh.Offset || sh.Offset + sh.StreamSize > mdSize)
{
throw new BadImageFormatException("Invalid stream header");
}
}
}
switch (GetMetaDataType(mdHeader.StreamHeaders))
{
case MetaDataType.Compressed:
md = new CompressedMetaData(peImage, cor20Header, mdHeader);
break;
case MetaDataType.ENC:
md = new ENCMetaData(peImage, cor20Header, mdHeader);
break;
default:
throw new BadImageFormatException("No #~ or #- stream found");
}
md.Initialize();
return(md);
}
catch {
if (md != null)
{
md.Dispose();
}
throw;
}
finally {
if (cor20HeaderStream != null)
{
cor20HeaderStream.Dispose();
}
if (mdHeaderStream != null)
{
mdHeaderStream.Dispose();
}
}
}
