public Stream GetInstallationStream(string moduleName, string installationFile)
{
var installationFilePath = GetInstallationFilePath(moduleName, installationFile);
if (File.Exists(installationFilePath))
{
using (var fs = new FileStream(installationFilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
return new MemoryStream(fs.ReadData());
}
}
return null;
}
private static MetadataTableInfo readMetadataTableInfo(FileStream metadataStream, int offset)
{
MetadataTableInfo info = new MetadataTableInfo();
info.identifier = metadataStream.ReadASCII(offset, IDENTIFIER_LENGTH);
info.tableOffset = new Pointer(metadataStream.ReadData(offset + IDENTIFIER_LENGTH, 4));
info.numEntries = metadataStream.ReadInt(offset + 4 + IDENTIFIER_LENGTH);
info.totalLength = metadataStream.ReadInt(offset + 8 + IDENTIFIER_LENGTH);
return info;
}
/*public byte[] getAt(int offset, int length)
{
//Returns [offset, offset+length)
}
public byte[] getDereferenceOf(int offset, int length)
{
//Returns [*offset, *offset+length)
}*/
private static Tuple<int, byte[]> readMetadataEntry(FileStream metadataStream, int offset)
{
//Returns [*(offset+4), *(offset+4)+*offset)
return Tuple.Create(metadataStream.ReadInt(offset),
metadataStream.ReadData(offset + 4, metadataStream.ReadInt(offset)));
}
