askpass_server.py 文件源码

def start(self, iomap, backlog):
        """Prompts for the password, creates a socket, and starts listening.

        The specified backlog should be the max number of clients connecting
        at once.
        """
        message = ('Warning: do not enter your password if anyone else has'
                ' superuser privileges or access to your account.')
        print(textwrap.fill(message))

        self.password = getpass.getpass()

        # Note that according to the docs for mkdtemp, "The directory is
        # readable, writable, and searchable only by the creating user."
        self.tempdir = tempfile.mkdtemp(prefix='pssh.')
        self.address = os.path.join(self.tempdir, 'pssh_askpass_socket')
        self.sock = socket.socket(socket.AF_UNIX)
        psshutil.set_cloexec(self.sock)
        self.sock.bind(self.address)
        self.sock.listen(backlog)
        iomap.register_read(self.sock.fileno(), self.handle_listen)