public virtual FileRecord GetFileRecord(string path)
{
if (path != String.Empty && !path.StartsWith(@"\"))
{
throw new InvalidPathException(String.Format("The path '{0}' is invalid", path));
}
if (path.EndsWith(@"\"))
{
path = path.Substring(0, path.Length - 1);
}
if (path == String.Empty)
{
return(GetFileRecord(MasterFileTable.RootDirSegmentReference));
}
string[] components = path.Substring(1).Split('\\');
MftSegmentReference directoryReference = MasterFileTable.RootDirSegmentReference;
lock (m_mftLock)
{
for (int index = 0; index < components.Length; index++)
{
FileRecord directoryRecord = GetFileRecord(directoryReference);
if (index < components.Length - 1)
{
if (!directoryRecord.IsDirectory)
{
throw new InvalidPathException(String.Format("The path '{0}' is invalid", path));
}
IndexData indexData = new IndexData(this, directoryRecord, AttributeType.FileName);
directoryReference = indexData.FindFileNameRecordSegmentReference(components[index]);
if (directoryReference == null)
{
throw new DirectoryNotFoundException(String.Format("Could not find part of the path '{0}'", path));
}
}
else // Last component
{
IndexData indexData = new IndexData(this, directoryRecord, AttributeType.FileName);
MftSegmentReference fileReference = indexData.FindFileNameRecordSegmentReference(components[index]);
if (fileReference == null)
{
throw new FileNotFoundException(String.Format("Could not find file '{0}'", path));
}
FileRecord fileRecord = GetFileRecord(fileReference);
if (!fileRecord.IsMetaFile)
{
return(fileRecord);
}
}
}
}
// We should never get here
throw new InvalidPathException();
}
public virtual FileRecord GetFileRecord(string path)
{
if (path != String.Empty && !path.StartsWith(@"\"))
{
throw new ArgumentException("Invalid path");
}
if (path.EndsWith(@"\"))
{
path = path.Substring(0, path.Length - 1);
}
if (path == String.Empty)
{
return(GetFileRecord(MasterFileTable.RootDirSegmentReference));
}
string[] components = path.Substring(1).Split('\\');
MftSegmentReference directoryReference = MasterFileTable.RootDirSegmentReference;
for (int index = 0; index < components.Length; index++)
{
FileRecord directoryRecord = GetFileRecord(directoryReference);
if (index < components.Length - 1)
{
if (!directoryRecord.IsDirectory)
{
return(null);
}
IndexData indexData = new IndexData(this, directoryRecord, AttributeType.FileName);
directoryReference = indexData.FindFileNameRecordSegmentReference(components[index]);
if (directoryReference == null)
{
return(null);
}
}
else // Last component
{
IndexData indexData = new IndexData(this, directoryRecord, AttributeType.FileName);
MftSegmentReference fileReference = indexData.FindFileNameRecordSegmentReference(components[index]);
if (fileReference == null)
{
return(null);
}
FileRecord fileRecord = GetFileRecord(fileReference);
if (fileRecord != null && !fileRecord.IsMetaFile)
{
return(fileRecord);
}
}
}
return(null);
}