/// <summary>
/// Constructor
/// </summary>
/// <param name="reader">PE file reader pointing to the start of this section</param>
/// <param name="verify">Verify section</param>
/// <exception cref="BadImageFormatException">Thrown if verification fails</exception>
public MetaDataHeader(IImageStream reader, bool verify)
{
SetStartOffset(reader);
//Interaction.MsgBox(reader.Position);
this.signature = reader.ReadUInt32();
if (verify && this.signature != 0x424A5342)
{
throw new BadImageFormatException("Invalid MetaData header signature");
}
this.majorVersion = reader.ReadUInt16();
this.minorVersion = reader.ReadUInt16();
if (verify && !((majorVersion == 1 && minorVersion == 1) || (majorVersion == 0 && minorVersion >= 19)))
{
throw new BadImageFormatException(string.Format("Unknown MetaData header version: {0}.{1}", majorVersion, minorVersion));
}
this.reserved1 = reader.ReadUInt32();
this.stringLength = reader.ReadUInt32();
this.versionString = ReadString(reader, stringLength);
this.offset2ndPart = reader.FileOffset + reader.Position;
this.flags = (StorageFlags)reader.ReadByte();
this.reserved2 = reader.ReadByte();
this.streams = reader.ReadUInt16();
this.streamHeaders = new StreamHeader[streams];
for (int i = 0; i < streamHeaders.Count; i++)
{
streamHeaders[i] = new StreamHeader(reader, verify);
}
SetEndoffset(reader);
}
bool StringsStreamNameEquals(IImageStream stringsStream, uint offset, byte[] nameData)
{
if (offset == 0)
{
return(nameData.Length == 0);
}
stringsStream.Position = offset;
long pos = offset;
var end = stringsStream.Length;
for (int i = 0; i < nameData.Length; i++)
{
if (pos >= end)
{
return(false);
}
if (stringsStream.ReadByte() != nameData[i])
{
return(false);
}
}
if (pos >= end)
{
return(false);
}
return(stringsStream.ReadByte() == 0);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="reader">PE file reader pointing to the start of this section</param>
/// <param name="verify">Verify section</param>
/// <exception cref="BadImageFormatException">Thrown if verification fails</exception>
public MetaDataHeader(IImageStream reader, bool verify)
{
SetStartOffset(reader);
Signature = reader.ReadUInt32();
if (verify && Signature != 0x424A5342)
{
throw new BadImageFormatException("Invalid MetaData header signature");
}
MajorVersion = reader.ReadUInt16();
MinorVersion = reader.ReadUInt16();
if (verify && !(MajorVersion == 1 && MinorVersion == 1 || MajorVersion == 0 && MinorVersion >= 19))
{
throw new BadImageFormatException(string.Format("Unknown MetaData header version: {0}.{1}", MajorVersion, MinorVersion));
}
Reserved1 = reader.ReadUInt32();
StringLength = reader.ReadUInt32();
VersionString = ReadString(reader, StringLength);
StorageHeaderOffset = reader.FileOffset + reader.Position;
Flags = (StorageFlags)reader.ReadByte();
Reserved2 = reader.ReadByte();
Streams = reader.ReadUInt16();
StreamHeaders = new StreamHeader[Streams];
for (var i = 0; i < StreamHeaders.Count; i++)
{
StreamHeaders[i] = new StreamHeader(reader, verify);
}
SetEndoffset(reader);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="reader">PE file reader pointing to the start of this section</param>
/// <param name="totalSize">Total size of this optional header (from the file header)</param>
/// <param name="verify">Verify section</param>
/// <exception cref="BadImageFormatException">Thrown if verification fails</exception>
public ImageOptionalHeader32(IImageStream reader, uint totalSize, bool verify)
{
if (totalSize < 0x60)
{
throw new BadImageFormatException("Invalid optional header size");
}
if (verify && reader.Position + totalSize > reader.Length)
{
throw new BadImageFormatException("Invalid optional header size");
}
SetStartOffset(reader);
this.magic = reader.ReadUInt16();
this.majorLinkerVersion = reader.ReadByte();
this.minorLinkerVersion = reader.ReadByte();
this.sizeOfCode = reader.ReadUInt32();
this.sizeOfInitializedData = reader.ReadUInt32();
this.sizeOfUninitializedData = reader.ReadUInt32();
this.addressOfEntryPoint = (RVA)reader.ReadUInt32();
this.baseOfCode = (RVA)reader.ReadUInt32();
this.baseOfData = (RVA)reader.ReadUInt32();
this.imageBase = reader.ReadUInt32();
this.sectionAlignment = reader.ReadUInt32();
this.fileAlignment = reader.ReadUInt32();
this.majorOperatingSystemVersion = reader.ReadUInt16();
this.minorOperatingSystemVersion = reader.ReadUInt16();
this.majorImageVersion = reader.ReadUInt16();
this.minorImageVersion = reader.ReadUInt16();
this.majorSubsystemVersion = reader.ReadUInt16();
this.minorSubsystemVersion = reader.ReadUInt16();
this.win32VersionValue = reader.ReadUInt32();
this.sizeOfImage = reader.ReadUInt32();
this.sizeOfHeaders = reader.ReadUInt32();
this.checkSum = reader.ReadUInt32();
this.subsystem = (Subsystem)reader.ReadUInt16();
this.dllCharacteristics = (DllCharacteristics)reader.ReadUInt16();
this.sizeOfStackReserve = reader.ReadUInt32();
this.sizeOfStackCommit = reader.ReadUInt32();
this.sizeOfHeapReserve = reader.ReadUInt32();
this.sizeOfHeapCommit = reader.ReadUInt32();
this.loaderFlags = reader.ReadUInt32();
this.numberOfRvaAndSizes = reader.ReadUInt32();
for (int i = 0; i < dataDirectories.Length; i++)
{
uint len = (uint)(reader.Position - startOffset);
if (len + 8 <= totalSize)
{
dataDirectories[i] = new ImageDataDirectory(reader, verify);
}
else
{
dataDirectories[i] = new ImageDataDirectory();
}
}
reader.Position = (long)startOffset + totalSize;
SetEndoffset(reader);
}
char[] ReadSeparatorChar(IImageStream stream, out int charLength)
{
if (prevSepCharBytesCount != 0 && prevSepCharBytesCount <= stream.Length)
{
var pos = stream.Position;
bool ok = true;
for (int i = 0; i < prevSepCharBytesCount; i++)
{
if (i >= prevSepCharBytes.Length || stream.ReadByte() != prevSepCharBytes[i])
{
ok = false;
break;
}
}
if (ok)
{
charLength = prevSepCharsLength;
return(prevSepChars);
}
stream.Position = pos;
}
var decoder = Encoding.UTF8.GetDecoder();
var bytes = new byte[1];
prevSepCharBytesCount = 0;
for (int i = 0; ; i++)
{
byte b = stream.ReadByte();
prevSepCharBytesCount++;
if (i == 0 && b == 0)
{
break;
}
if (i < prevSepCharBytes.Length)
{
prevSepCharBytes[i] = b;
}
bytes[0] = b;
bool isLastByte = stream.Position + 1 == stream.Length;
int bytesUsed;
bool completed;
decoder.Convert(bytes, 0, 1, prevSepChars, 0, prevSepChars.Length, isLastByte, out bytesUsed, out prevSepCharsLength, out completed);
if (prevSepCharsLength > 0)
{
break;
}
}
charLength = prevSepCharsLength;
return(prevSepChars);
}
static string ReadString(IImageStream reader, int maxLen, bool verify)
{
var origPos = reader.Position;
var sb = new StringBuilder(maxLen);
int i;
for (i = 0; i < maxLen; i++)
{
byte b = reader.ReadByte();
if (b == 0)
{
break;
}
sb.Append((char)b);
}
if (verify && i == maxLen)
{
throw new BadImageFormatException("Invalid stream name string");
}
if (i != maxLen)
{
reader.Position = origPos + ((i + 1 + 3) & ~3);
}
return(sb.ToString());
}
void Populate(IImageStream reader) {
var chars = new char[0x200];
reader.Position = 1;
while (reader.Position < reader.Length) {
uint offset = (uint)reader.Position;
uint len;
if (!reader.ReadCompressedUInt32(out len)) {
if (offset == reader.Position)
reader.Position++;
continue;
}
if (len == 0 || reader.Position + len > reader.Length)
continue;
int stringLen = (int)len / 2;
if (stringLen > chars.Length)
Array.Resize(ref chars, stringLen);
for (int i = 0; i < stringLen; i++)
chars[i] = (char)reader.ReadUInt16();
if ((len & 1) != 0)
reader.ReadByte();
var s = new string(chars, 0, stringLen);
if (!cachedDict.ContainsKey(s))
cachedDict[s] = offset;
}
}
void Populate(IImageStream reader)
{
reader.Position = 1;
while (reader.Position < reader.Length)
{
uint offset = (uint)reader.Position;
var bytes = reader.ReadBytesUntilByte(0);
if (bytes == null)
{
break;
}
reader.ReadByte(); // terminating zero
if (bytes.Length == 0)
{
continue;
}
var s = new UTF8String(bytes);
if (!cachedDict.ContainsKey(s))
{
cachedDict[s] = offset;
}
}
}
/// <summary>
/// Reads the signature
/// </summary>
/// <returns>A new <see cref="CallingConventionSig"/> instance or <c>null</c> if invalid signature</returns>
CallingConventionSig ReadSig()
{
if (!recursionCounter.Increment())
{
return(null);
}
CallingConventionSig result;
var callingConvention = (CallingConvention)reader.ReadByte();
switch (callingConvention & CallingConvention.Mask)
{
case CallingConvention.Default:
case CallingConvention.C:
case CallingConvention.StdCall:
case CallingConvention.ThisCall:
case CallingConvention.FastCall:
case CallingConvention.VarArg:
result = ReadMethod(callingConvention);
break;
case CallingConvention.Field:
result = ReadField(callingConvention);
break;
case CallingConvention.LocalSig:
result = ReadLocalSig(callingConvention);
break;
case CallingConvention.Property:
result = ReadProperty(callingConvention);
break;
case CallingConvention.GenericInst:
result = ReadGenericInstMethod(callingConvention);
break;
case CallingConvention.Unmanaged:
case CallingConvention.NativeVarArg:
default:
result = null;
break;
}
recursionCounter.Decrement();
return(result);
}
public int ReadByte()
{
if (stream != null)
{
return(stream.ReadByte());
}
return(-1);
}
void ReadFiles(PdbReader reader, Dictionary <long, DbiDocument> documents, IImageStream stream, long end)
{
var begin = stream.Position;
while (stream.Position < end)
{
var id = stream.Position - begin;
var nameId = stream.ReadUInt32();
var len = stream.ReadByte();
/*var type = */ stream.ReadByte();
var doc = reader.GetDocument(nameId);
documents.Add(id, doc);
stream.Position += len;
stream.Position = (stream.Position + 3) & (~3);
}
}
static bool ReadAndCompareBytes(IImageStream stream, long end, byte[] bytes)
{
if (stream.Position + bytes.Length > end)
{
return(false);
}
for (int i = 0; i < bytes.Length; i++)
{
if (stream.ReadByte() != bytes[i])
{
return(false);
}
}
return(true);
}
static string ReadString(IImageStream reader, int maxLen, bool verify) {
var origPos = reader.Position;
var sb = new StringBuilder(maxLen);
int i;
for (i = 0; i < maxLen; i++) {
byte b = reader.ReadByte();
if (b == 0)
break;
sb.Append((char)b);
}
if (verify && i == maxLen)
throw new BadImageFormatException("Invalid stream name string");
if (i != maxLen)
reader.Position = origPos + ((i + 1 + 3) & ~3);
return sb.ToString();
}
void Populate(IImageStream reader) {
reader.Position = 1;
while (reader.Position < reader.Length) {
uint offset = (uint)reader.Position;
var bytes = reader.ReadBytesUntilByte(0);
if (bytes == null)
break;
reader.ReadByte(); // terminating zero
if (bytes.Length == 0)
continue;
var s = new UTF8String(bytes);
if (!cachedDict.ContainsKey(s))
cachedDict[s] = offset;
}
}
public string ReadInstrution(Instruction instr)
{
if (stream == null)
{
return(string.Empty);
}
int instructionSize = instr.GetSize();
stream.Position = instr.Offset;
var sb = new StringBuilder();
for (int i = 0; i < instructionSize; i++)
{
sb.AppendFormat("{0:X2}", stream.ReadByte());
}
return(sb.ToString());
}
void Populate(IImageStream reader)
{
var chars = new char[0x200];
reader.Position = 1;
while (reader.Position < reader.Length)
{
uint offset = (uint)reader.Position;
uint len;
if (!reader.ReadCompressedUInt32(out len))
{
if (offset == reader.Position)
{
reader.Position++;
}
continue;
}
if (len == 0 || reader.Position + len > reader.Length)
{
continue;
}
int stringLen = (int)len / 2;
if (stringLen > chars.Length)
{
Array.Resize(ref chars, stringLen);
}
for (int i = 0; i < stringLen; i++)
{
chars[i] = (char)reader.ReadUInt16();
}
if ((len & 1) != 0)
{
reader.ReadByte();
}
var s = new string(chars, 0, stringLen);
if (!cachedDict.ContainsKey(s))
{
cachedDict[s] = offset;
}
}
}
static string ReadString(IImageStream reader, uint maxLength)
{
long endPos = reader.Position + maxLength;
if (endPos < reader.Position || endPos > reader.Length)
{
throw new BadImageFormatException("Invalid MD version string");
}
byte[] utf8Bytes = new byte[maxLength];
uint i;
for (i = 0; i < maxLength; i++)
{
byte b = reader.ReadByte();
if (b == 0)
{
break;
}
utf8Bytes[i] = b;
}
reader.Position = endPos;
return(Encoding.UTF8.GetString(utf8Bytes, 0, (int)i));
}
bool ReadCore(out TypeSig type, out object value)
{
if (!recursionCounter.Increment())
{
type = null;
value = null;
return(false);
}
bool res;
ITypeDefOrRef tdr;
UTF8String ns, name;
var et = (ElementType)reader.ReadByte();
switch (et)
{
case ElementType.Boolean:
type = module.CorLibTypes.Boolean;
value = reader.ReadBoolean();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.Char:
type = module.CorLibTypes.Char;
value = (char)reader.ReadUInt16();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.I1:
type = module.CorLibTypes.SByte;
value = reader.ReadSByte();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.U1:
type = module.CorLibTypes.Byte;
value = reader.ReadByte();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.I2:
type = module.CorLibTypes.Int16;
value = reader.ReadInt16();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.U2:
type = module.CorLibTypes.UInt16;
value = reader.ReadUInt16();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.I4:
type = module.CorLibTypes.Int32;
value = reader.ReadInt32();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.U4:
type = module.CorLibTypes.UInt32;
value = reader.ReadUInt32();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.I8:
type = module.CorLibTypes.Int64;
value = reader.ReadInt64();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.U8:
type = module.CorLibTypes.UInt64;
value = reader.ReadUInt64();
if (reader.Position < reader.Length)
{
type = ReadTypeDefOrRefSig();
}
res = true;
break;
case ElementType.R4:
type = module.CorLibTypes.Single;
value = reader.ReadSingle();
res = true;
break;
case ElementType.R8:
type = module.CorLibTypes.Double;
value = reader.ReadDouble();
res = true;
break;
case ElementType.String:
type = module.CorLibTypes.String;
value = ReadString();
res = true;
break;
case ElementType.Ptr:
res = Read(out type, out value);
if (res)
{
type = new PtrSig(type);
}
break;
case ElementType.ByRef:
res = Read(out type, out value);
if (res)
{
type = new ByRefSig(type);
}
break;
case ElementType.Object:
type = module.CorLibTypes.Object;
value = null;
res = true;
break;
case ElementType.ValueType:
tdr = ReadTypeDefOrRef();
type = tdr.ToTypeSig();
value = null;
if (GetName(tdr, out ns, out name) && ns == stringSystem && tdr.DefinitionAssembly.IsCorLib())
{
if (name == stringDecimal)
{
if (reader.Length - reader.Position != 13)
{
goto default;
}
try {
byte b = reader.ReadByte();
value = new Decimal(reader.ReadInt32(), reader.ReadInt32(), reader.ReadInt32(), (b & 0x80) != 0, (byte)(b & 0x7F));
}
catch {
goto default;
}
}
else if (name == stringDateTime)
{
if (reader.Length - reader.Position != 8)
{
goto default;
}
try {
value = new DateTime(reader.ReadInt64());
}
catch {
goto default;
}
}
}
if (value == null && reader.Position != reader.Length)
{
value = reader.ReadRemainingBytes();
}
res = true;
break;
case ElementType.Class:
type = new ClassSig(ReadTypeDefOrRef());
value = reader.Position == reader.Length ? null : reader.ReadRemainingBytes();
res = true;
break;
case ElementType.CModReqd:
tdr = ReadTypeDefOrRef();
res = Read(out type, out value);
if (res)
{
type = new CModReqdSig(tdr, type);
}
break;
case ElementType.CModOpt:
tdr = ReadTypeDefOrRef();
res = Read(out type, out value);
if (res)
{
type = new CModOptSig(tdr, type);
}
break;
case ElementType.Var:
case ElementType.Array:
case ElementType.GenericInst:
case ElementType.TypedByRef:
case ElementType.I:
case ElementType.U:
case ElementType.FnPtr:
case ElementType.SZArray:
case ElementType.MVar:
case ElementType.End:
case ElementType.Void:
case ElementType.ValueArray:
case ElementType.R:
case ElementType.Internal:
case ElementType.Module:
case ElementType.Sentinel:
case ElementType.Pinned:
default:
Debug.Fail("Unsupported element type in LocalConstant sig blob: " + et.ToString());
res = false;
type = null;
value = null;
break;
}
recursionCounter.Decrement();
return(res);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="reader">PE file reader pointing to the start of this section</param>
/// <param name="totalSize">Total size of this optional header (from the file header)</param>
/// <param name="verify">Verify section</param>
/// <exception cref="BadImageFormatException">Thrown if verification fails</exception>
public ImageOptionalHeader32(IImageStream reader, uint totalSize, bool verify) {
if (totalSize < 0x60)
throw new BadImageFormatException("Invalid optional header size");
if (verify && reader.Position + totalSize > reader.Length)
throw new BadImageFormatException("Invalid optional header size");
SetStartOffset(reader);
this.magic = reader.ReadUInt16();
this.majorLinkerVersion = reader.ReadByte();
this.minorLinkerVersion = reader.ReadByte();
this.sizeOfCode = reader.ReadUInt32();
this.sizeOfInitializedData = reader.ReadUInt32();
this.sizeOfUninitializedData = reader.ReadUInt32();
this.addressOfEntryPoint = (RVA)reader.ReadUInt32();
this.baseOfCode = (RVA)reader.ReadUInt32();
this.baseOfData = (RVA)reader.ReadUInt32();
this.imageBase = reader.ReadUInt32();
this.sectionAlignment = reader.ReadUInt32();
this.fileAlignment = reader.ReadUInt32();
this.majorOperatingSystemVersion = reader.ReadUInt16();
this.minorOperatingSystemVersion = reader.ReadUInt16();
this.majorImageVersion = reader.ReadUInt16();
this.minorImageVersion = reader.ReadUInt16();
this.majorSubsystemVersion = reader.ReadUInt16();
this.minorSubsystemVersion = reader.ReadUInt16();
this.win32VersionValue = reader.ReadUInt32();
this.sizeOfImage = reader.ReadUInt32();
this.sizeOfHeaders = reader.ReadUInt32();
this.checkSum = reader.ReadUInt32();
this.subsystem = (Subsystem)reader.ReadUInt16();
this.dllCharacteristics = (DllCharacteristics)reader.ReadUInt16();
this.sizeOfStackReserve = reader.ReadUInt32();
this.sizeOfStackCommit = reader.ReadUInt32();
this.sizeOfHeapReserve = reader.ReadUInt32();
this.sizeOfHeapCommit = reader.ReadUInt32();
this.loaderFlags = reader.ReadUInt32();
this.numberOfRvaAndSizes = reader.ReadUInt32();
for (int i = 0; i < dataDirectories.Length; i++) {
uint len = (uint)(reader.Position - startOffset);
if (len + 8 <= totalSize)
dataDirectories[i] = new ImageDataDirectory(reader, verify);
else
dataDirectories[i] = new ImageDataDirectory();
}
reader.Position = (long)startOffset + totalSize;
SetEndoffset(reader);
}
public int ReadByte()
{
return(stream.ReadByte());
}
public byte OffsetReadByte(uint offset)
{
peStream.Position = offset;
return(peStream.ReadByte());
}
object ReadValue(SerializationType etype, TypeSig argType, out TypeSig realArgType)
{
if (!recursionCounter.Increment())
{
throw new CABlobParserException("Too much recursion");
}
object result;
switch (etype)
{
case SerializationType.Boolean:
realArgType = module.CorLibTypes.Boolean;
result = reader.ReadByte() != 0;
break;
case SerializationType.Char:
realArgType = module.CorLibTypes.Char;
result = (char)reader.ReadUInt16();
break;
case SerializationType.I1:
realArgType = module.CorLibTypes.SByte;
result = reader.ReadSByte();
break;
case SerializationType.U1:
realArgType = module.CorLibTypes.Byte;
result = reader.ReadByte();
break;
case SerializationType.I2:
realArgType = module.CorLibTypes.Int16;
result = reader.ReadInt16();
break;
case SerializationType.U2:
realArgType = module.CorLibTypes.UInt16;
result = reader.ReadUInt16();
break;
case SerializationType.I4:
realArgType = module.CorLibTypes.Int32;
result = reader.ReadInt32();
break;
case SerializationType.U4:
realArgType = module.CorLibTypes.UInt32;
result = reader.ReadUInt32();
break;
case SerializationType.I8:
realArgType = module.CorLibTypes.Int64;
result = reader.ReadInt64();
break;
case SerializationType.U8:
realArgType = module.CorLibTypes.UInt64;
result = reader.ReadUInt64();
break;
case SerializationType.R4:
realArgType = module.CorLibTypes.Single;
result = reader.ReadSingle();
break;
case SerializationType.R8:
realArgType = module.CorLibTypes.Double;
result = reader.ReadDouble();
break;
case SerializationType.String:
realArgType = module.CorLibTypes.String;
result = ReadUTF8String();
break;
// It's ET.ValueType if it's eg. a ctor enum arg type
case (SerializationType)ElementType.ValueType:
if (argType == null)
{
throw new CABlobParserException("Invalid element type");
}
realArgType = argType;
result = ReadEnumValue(GetEnumUnderlyingType(argType));
break;
// It's ET.Object if it's a ctor object arg type
case (SerializationType)ElementType.Object:
case SerializationType.TaggedObject:
realArgType = ReadFieldOrPropType();
var arraySig = realArgType as SZArraySig;
if (arraySig != null)
{
result = ReadArrayArgument(arraySig);
}
else
{
TypeSig tmpType;
result = ReadValue((SerializationType)realArgType.ElementType, realArgType, out tmpType);
}
break;
// It's ET.Class if it's eg. a ctor System.Type arg type
case (SerializationType)ElementType.Class:
var tdr = argType as TypeDefOrRefSig;
if (tdr != null && tdr.DefinitionAssembly.IsCorLib() && tdr.Namespace == "System")
{
if (tdr.TypeName == "Type")
{
result = ReadValue(SerializationType.Type, tdr, out realArgType);
break;
}
if (tdr.TypeName == "String")
{
result = ReadValue(SerializationType.String, tdr, out realArgType);
break;
}
if (tdr.TypeName == "Object")
{
result = ReadValue(SerializationType.TaggedObject, tdr, out realArgType);
break;
}
}
// Assume it's an enum that couldn't be resolved
realArgType = argType;
return(ReadEnumValue(null));
case SerializationType.Type:
realArgType = argType;
result = ReadType();
break;
case SerializationType.Enum:
realArgType = ReadType();
result = ReadEnumValue(GetEnumUnderlyingType(realArgType));
break;
default:
throw new CABlobParserException("Invalid element type");
}
recursionCounter.Decrement();
return(result);
}
void ReadFiles(PdbReader reader, Dictionary<long, DbiDocument> documents, IImageStream stream, long end)
{
var begin = stream.Position;
while (stream.Position < end) {
var id = stream.Position - begin;
var nameId = stream.ReadUInt32();
var len = stream.ReadByte();
/*var type = */stream.ReadByte();
var doc = reader.GetDocument(nameId);
documents.Add(id, doc);
stream.Position += len;
stream.Position = (stream.Position + 3) & (~3);
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="reader">PE file reader pointing to the start of this section</param>
/// <param name="verify">Verify section</param>
/// <exception cref="BadImageFormatException">Thrown if verification fails</exception>
public MetaDataHeader(IImageStream reader, bool verify) {
SetStartOffset(reader);
this.signature = reader.ReadUInt32();
if (verify && this.signature != 0x424A5342)
throw new BadImageFormatException("Invalid MetaData header signature");
this.majorVersion = reader.ReadUInt16();
this.minorVersion = reader.ReadUInt16();
if (verify && !((majorVersion == 1 && minorVersion == 1) || (majorVersion == 0 && minorVersion >= 19)))
throw new BadImageFormatException(string.Format("Unknown MetaData header version: {0}.{1}", majorVersion, minorVersion));
this.reserved1 = reader.ReadUInt32();
this.stringLength = reader.ReadUInt32();
this.versionString = ReadString(reader, stringLength);
this.offset2ndPart = (uint)(reader.Position - startOffset);
this.flags = (StorageFlags)reader.ReadByte();
if (verify && this.flags != 0)
throw new BadImageFormatException(string.Format("Storage flags != 0 ({0})", this.flags));
this.reserved2 = reader.ReadByte();
this.streams = reader.ReadUInt16();
this.streamHeaders = new StreamHeader[streams];
for (int i = 0; i < streamHeaders.Count; i++)
streamHeaders[i] = new StreamHeader(reader, verify);
SetEndoffset(reader);
}
static string ReadString(IImageStream reader, uint maxLength) {
long endPos = reader.Position + maxLength;
if (endPos < reader.Position || endPos > reader.Length)
throw new BadImageFormatException("Invalid MD version string");
byte[] utf8Bytes = new byte[maxLength];
uint i;
for (i = 0; i < maxLength; i++) {
byte b = reader.ReadByte();
if (b == 0)
break;
utf8Bytes[i] = b;
}
reader.Position = endPos;
return Encoding.UTF8.GetString(utf8Bytes, 0, (int)i);
}
