Add SslStream::from_raw_parts

        }

    }

    /// Constructs an `SslStream` from a pointer to the underlying OpenSSL `SSL` struct.

    ///

    /// This is useful if the handshake has already been completed elsewhere.

    ///

    /// # Safety

    ///

    /// The caller must ensure the pointer is valid.

    pub unsafe fn from_raw_parts(ssl: *mut ffi::SSL, stream: S) -> Self {

        let ssl = Ssl::from_ptr(ssl);

        Self::new_base(ssl, stream)

    }

    /// Like `read`, but returns an `ssl::Error` rather than an `io::Error`.

    ///

    /// It is particularly useful with a nonblocking socket, where the error value will identify if