AlkantarClanX12
Your IP : 18.224.53.246
U
i�f� � @ s� d Z ddlmZ ddlZddlZddlZdddgZdZdZdZdZ d d� Z
d
d � Z d d
� Z dd� Z
dd� Zdd� Zdd� Zeefdd�Zeefdd�ZdS )zPseudo terminal utilities.� )�selectN�openpty�fork�spawn� � c C s> z
t �� W S ttfk
r" Y nX t� \} }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 �(/opt/alt/python38/lib64/python3.8/pty.pyr s
c C sL zt �� \} }W n ttfk
r( Y n X t �|�}t �|� | |fS t� 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.)r r r r
�ttyname�closer )r
r r r r r � master_open" s
r c
C sn dD ]\} dD ]R}d| | }zt �|t j�}W n tk
rF Y q Y nX |d| | f S qtd��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�fdr r r r 2 s
r c C sr t �| t j�}zddlm}m} W n tk
r: | Y S X z |||d� |||d� W n tk
rl Y nX |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)r r r Zfcntlr r � ImportErrorr
)Ztty_name�resultr r r r r r > s
r c C s� zt �� \} }W n ttfk
r( Y n4X | tkrTz t �� W n tk
rR Y nX | |fS t� \}}t �� } | tkr�t �� t �|� t � |t
� t � |t � t � |t � |t kr�t �|� t �
t �t �t j�}t �|� n
t �|� | |fS )zdfork() -> (pid, master_fd)
Fork and make the child a session leader with a controlling terminal.)r �forkptyr r
�CHILD�setsidr r r �dup2� STDIN_FILENO�
STDOUT_FILENO�
STDERR_FILENOr r r )�pidr r
r Ztmp_fdr r r r P s0
c C s" |r t �| |�}||d� }q dS )z#Write all the data to a descriptor.N)r �write)r �data�nr r r �_writenx s r) c C s t �| d�S )zDefault read function.i )r �read)r r r r �_read~ s r+ c C sv | t g}t|g g �\}}}| |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 �remover r& r# r) )r
� master_read�
stdin_readZfdsZrfdsZwfdsZxfdsr' r r r �_copy� s r/ c C s� t | �t d�kr| f} t�d| � t� \}}|tkrHtj| d f| �� z t�t �}t�
t � d}W n tj k
r~ d}Y nX zt |||� W n( t
k
r� |r�t�t tj|� Y nX t�|� t�|d�d S )zCreate a spawned process.� z pty.spawnr r )�type�sys�auditr r r �execlp�ttyZ tcgetattrr" Zsetraw�errorr/ r
Z tcsetattrZ TCSAFLUSHr �waitpid)�argvr- r. r% r
�modeZrestorer r r r � s&
)�__doc__r r r2 r5 �__all__r" r# r$ r r r r r r r) r+ r/ r r r r r �<module> s$
(