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

        internal virtual void Open(int flags, int access, int attrs, int options)
        {
            if (IsOpen())
            {
                return;
            }
            Fid = Open0(flags, access, attrs, options);
            Opened = true;
            TreeNum = Tree.TreeNum;
        }

		/// <exception cref="SharpCifs.Smb.SmbException"></exception>
		/// <exception cref="System.UriFormatException"></exception>
		/// <exception cref="UnknownHostException"></exception>
		public SmbRandomAccessFile(SmbFile file, string mode)
		{
			this._file = file;
			if (mode.Equals("r"))
			{
				_openFlags = SmbFile.OCreat | SmbFile.ORdonly;
			}
			else
			{
				if (mode.Equals("rw"))
				{
					_openFlags = SmbFile.OCreat | SmbFile.ORdwr | SmbFile.OAppend;
					_writeAndxResp = new SmbComWriteAndXResponse();
					_options = WriteOptions;
					_access = SmbConstants.FileReadData | SmbConstants.FileWriteData;
				}
				else
				{
					throw new ArgumentException("Invalid mode");
				}
			}
			file.Open(_openFlags, _access, SmbFile.AttrNormal, _options);
			_readSize = file.Tree.Session.transport.RcvBufSize - 70;
			_writeSize = file.Tree.Session.transport.SndBufSize - 70;
			_fp = 0L;
		}