bool ReadMetadataHeader(
ref MemoryReader memReader
)
//^ requires this.ReaderState >= ReaderState.PEFile;
{
if (memReader.RemainingBytes < COR20Constants.MinimumSizeofMetadataHeader) {
this.ErrorContainer.AddDirectoryError(Directories.Cor20HeaderMetaData, 0, MetadataReaderErrorKind.MetadataHeaderTooSmall);
return false;
}
this.MetadataHeader.Signature = memReader.ReadUInt32();
if (this.MetadataHeader.Signature != COR20Constants.COR20MetadataSignature) {
this.ErrorContainer.AddDirectoryError(Directories.Cor20HeaderMetaData, memReader.Offset - sizeof(uint), MetadataReaderErrorKind.MetadataSignature);
return false;
}
this.MetadataHeader.MajorVersion = memReader.ReadUInt16();
this.MetadataHeader.MinorVersion = memReader.ReadUInt16();
this.MetadataHeader.ExtraData = memReader.ReadUInt32();
this.MetadataHeader.VersionStringSize = memReader.ReadInt32();
if (memReader.RemainingBytes < this.MetadataHeader.VersionStringSize) {
this.ErrorContainer.AddDirectoryError(Directories.Cor20HeaderMetaData, memReader.Offset, MetadataReaderErrorKind.NotEnoughSpaceForVersionString);
return false;
}
int numberOfBytesRead;
this.MetadataHeader.VersionString = memReader.PeekUTF8NullTerminated(0, out numberOfBytesRead);
memReader.SkipBytes(this.MetadataHeader.VersionStringSize);
return true;
}