SharpCifs.Smb.SmbFile.GetDiskFreeSpace C# (CSharp) Method

        public virtual long GetDiskFreeSpace()
        {
            if (GetType() == TypeShare || Type == TypeFilesystem)
            {
                int level = Trans2QueryFsInformationResponse.SmbFsFullSizeInformation;
                try
                {
                    return QueryFsInformation(level);
                }
                catch (SmbException ex)
                {
                    switch (ex.GetNtStatus())
                    {
                        case NtStatus.NtStatusInvalidInfoClass:
                        case NtStatus.NtStatusUnsuccessful:
                            {
                                // NetApp Filer
                                // SMB_FS_FULL_SIZE_INFORMATION not supported by the server.
                                level = Trans2QueryFsInformationResponse.SMB_INFO_ALLOCATION;
                                return QueryFsInformation(level);
                            }
                    }
                    throw;
                }
            }
            return 0L;
        }