private PEReader([NotNull] PEFile pefile, [NotNull] System.IO.FileStream file, bool refs, bool skipBody)
:
base(new MemoryStream(new BinaryReader(file).ReadBytes(System.Convert.ToInt32(file.Length))))
{
Contract.Requires(pefile != null);
Contract.Requires(file != null);
this.skipBody = skipBody;
thisScope = pefile;
refsOnly = refs;
verInfo.fromExisting = true;
try
{
ReadDOSHeader();
}
catch (PEFileException)
{
Console.WriteLine("Bad DOS header");
return;
}
ReadFileHeader();
ReadSectionHeaders();
ReadCLIHeader();
ReadMetaData();
if (refsOnly)
this.ReadMetaDataTableRefs();
else
{
this.ReadMetaDataTables();
pefile.metaDataTables = new MetaDataTables(tables);
this.SaveUnmanagedResources();
}
file.Close();
if (thisScope != null)
{
thisScope.buffer = this;
if (pefile != null)
{
pefile.versionInfo = verInfo;
}
}
strings = null;
userstring = null;
blob = null;
guid = null;
}
private void ReadMetaData()
{
if (Diag.DiagOn) Console.WriteLine("MetaData at RVA = " + Hex.Int(metaDataRVA) + " and offset = " + Hex.Int(GetOffset(metaDataRVA)));
BaseStream.Seek(GetOffset(metaDataRVA), SeekOrigin.Begin);
uint sig = ReadUInt32(); // check
verInfo.mdMajVer = ReadUInt16(); // check
verInfo.mdMinVer = ReadUInt16(); // check
ReadZeros(4);
int verStrLen = ReadInt32();
int end = -1;
char[] verString = new char[verStrLen + 1];
for (int i = 0; i < verStrLen; i++)
{
verString[i] = (char)ReadByte();
if ((verString[i] == 0) && (end == -1)) end = i;
}
verString[verStrLen] = (char)0; // check
if (end == -1) end = verStrLen;
verInfo.netVerString = new string(verString, 0, end);
verInfo.SetVersionFromString();
// Beware of unknown netVerString values here ... Needs a better fix (kjg 31-Oct-2007)
GenericParam.extraField = verInfo.netVersion < NetVersion.Whidbey41;
if (Diag.DiagOn && GenericParam.extraField)
{
Console.WriteLine("Version = " + verInfo.netVerString + " has extra field for GenericParam");
}
int alignNum = 0;
if ((verStrLen % 4) != 0) alignNum = 4 - (verStrLen % 4);
ReadZeros(alignNum);
flags = ReadUInt16(); // check
int numStreams = ReadUInt16();
streamOffsets = new uint[numStreams];
streamSizes = new uint[numStreams];
streamNames = new String[numStreams];
if (Diag.DiagOn)
Console.WriteLine("MetaData Streams");
for (int i = 0; i < numStreams; i++)
{
streamOffsets[i] = ReadUInt32();
streamSizes[i] = ReadUInt32();
streamNames[i] = ReadStreamName();
if (Diag.DiagOn)
Console.WriteLine(" " + streamNames[i] + " Offset = " + Hex.Int(streamOffsets[i]) + " Size = " + Hex.Int(streamSizes[i]));
}
uint tildeIx = 0;
for (uint i = 0; i < numStreams; i++)
{
String nam = streamNames[i];
if (MetaData.tildeName.CompareTo(nam) == 0) tildeIx = i;
else
{
uint streamoff = GetOffset(metaDataRVA + streamOffsets[i]);
if (Diag.DiagOn) Console.WriteLine("getting stream bytes at offset " + Hex.Int(streamoff));
BaseStream.Seek(GetOffset(metaDataRVA + streamOffsets[i]), SeekOrigin.Begin);
long streamStart = BaseStream.Position;
byte[] strBytes = ReadBytes((int)streamSizes[i]);
if (MetaData.stringsName.CompareTo(nam) == 0)
{
strings = new MetaDataInStream(strBytes);
}
else if (MetaData.userstringName.CompareTo(nam) == 0)
{
userstring = new MetaDataStringStream(strBytes);
}
else if (MetaData.blobName.CompareTo(nam) == 0)
{
blobStreamStartOffset = streamStart;
blob = new MetaDataInStream(strBytes);
}
else if (MetaData.guidName.CompareTo(nam) == 0)
{
guid = new MetaDataInStream(strBytes);
}
else if (nam.CompareTo("#-") == 0)
{
tildeIx = i;
//throw new Exception("Illegal uncompressed data stream #-");
}
else
{
Console.WriteLine("Unknown stream - " + nam);
}
}
}
// go to beginning of tilde stream
BaseStream.Seek(GetOffset(metaDataRVA + streamOffsets[tildeIx]), SeekOrigin.Begin);
ReadTildeStreamStart();
}