MongoDB.Driver.BsonReader.ReadString C# (CSharp) Method

        public string ReadString(int length)
        {
            Contract.Requires(length > 0);
              byte[] buf;
              var strlen = length - 1;
              if (length < _stringBuffer.Length)
              {
            Read(_stringBuffer, 0, strlen);
            buf = _stringBuffer;
              }
              else
              {
            buf = ReadBytes(strlen);
              }
              Read(_byteBuffer, 0, 1); // trailing NULL
              return encoding.GetString(buf, 0, strlen);
        }