AlkantarClanX12

Your IP : 3.145.103.169


Current Path : /lib64/python3.8/__pycache__/
Upload File :
Current File : //lib64/python3.8/__pycache__/pty.cpython-38.pyc

U

e5d��@s�dZddlmZddlZddlZddlZdddgZdZdZdZdZ	d	d�Z
d
d�Zdd
�Zdd�Z
dd�Zdd�Zdd�Zeefdd�Zeefdd�ZdS)zPseudo terminal utilities.�)�selectN�openpty�fork�spawn��c	Cs>z
t��WSttfk
r"YnXt�\}}t|�}||fS)zdopenpty() -> (master_fd, slave_fd)
    Open a pty master/slave pair, using os.openpty() if possible.)�osr�AttributeError�OSError�_open_terminal�
slave_open)�	master_fd�
slave_name�slave_fd�r�/usr/lib64/python3.8/pty.pyrs

c	CsLzt��\}}Wnttfk
r(YnXt�|�}t�|�||fSt�S)z�master_open() -> (master_fd, slave_name)
    Open a pty master and return the fd, and the filename of the slave end.
    Deprecated, use openpty() instead.)rrr	r
�ttyname�closer)r
rrrrr�master_open"s

rc
CsndD]\}dD]R}d||}zt�|tj�}Wntk
rFYqYnX|d||fSqtd��dS)z1Open pty master and return (master_fd, tty_name).ZpqrstuvwxyzPQRSTZ0123456789abcdefz/dev/ptyz/dev/ttyzout of pty devicesN)r�open�O_RDWRr
)�x�yZpty_name�fdrrrr2s
rcCsrt�|tj�}zddlm}m}Wntk
r:|YSXz|||d�|||d�Wntk
rlYnX|S)z�slave_open(tty_name) -> slave_fd
    Open the pty slave and acquire the controlling terminal, returning
    opened filedescriptor.
    Deprecated, use openpty() instead.r)�ioctl�I_PUSHZptemZldterm)rrrZfcntlrr�ImportErrorr
)Ztty_name�resultrrrrrr>s
rc	Cs�zt��\}}Wnttfk
r(Yn4X|tkrTzt��Wntk
rRYnX||fSt�\}}t��}|tkr�t��t�|�t�	|t
�t�	|t�t�	|t�|tkr�t�|�t�
t�t�tj�}t�|�n
t�|�||fS)zdfork() -> (pid, master_fd)
    Fork and make the child a session leader with a controlling terminal.)r�forkptyr	r
�CHILD�setsidrrr�dup2�STDIN_FILENO�
STDOUT_FILENO�
STDERR_FILENOrrr)�pidrr
rZtmp_fdrrrrPs0



cCs"|rt�||�}||d�}qdS)z#Write all the data to a descriptor.N)r�write)r�data�nrrr�_writenxsr)cCst�|d�S)zDefault read function.i)r�read)rrrr�_read~sr+cCsv|tg}t|gg�\}}}||krF||�}|s:|�|�nt�t|�t|kr|t�}|sf|�t�qt||�qdS)z�Parent copy loop.
    Copies
            pty master -> standard output   (master_read)
            standard input -> pty master    (stdin_read)N)r"r�removerr&r#r))r
�master_read�
stdin_readZfdsZrfdsZwfdsZxfdsr'rrr�_copy�sr/cCs�t|�td�kr|f}t�d|�t�\}}|tkrHtj|df|��zt�t	�}t�
t	�d}Wntjk
r~d}YnXzt|||�Wn(t
k
r�|r�t�t	tj|�YnXt�|�t�|d�dS)zCreate a spawned process.�z	pty.spawnrr)�type�sys�auditrrr�execlp�ttyZ	tcgetattrr"Zsetraw�errorr/r
Z	tcsetattrZ	TCSAFLUSHr�waitpid)�argvr-r.r%r
�modeZrestorerrrr�s&




)�__doc__rrr2r5�__all__r"r#r$rrrrrrr)r+r/rrrrr�<module>s$
(