3 \� � @ s� d dl m Z d dlZd dlZdddgZd ZdZdZd Zdd� Zd d � Z d d � Z d d� Z dd� Z dd� Z dd� Zeefdd�Zeefdd�ZdS )� )�selectN�openpty�fork�spawn� � c C s< yt j� S ttfk r Y nX t� \} }t|�}| |fS )N)�osr �AttributeError�OSError�_open_terminal� slave_open)� master_fd� slave_name�slave_fd� r �/usr/lib64/python3.6/pty.pyr s c C sL yt j� \} }W n ttfk r( Y n X t j|�}t j|� | |fS t� S )N)r r r r �ttyname�closer )r r r r r r � master_open! s r c C sl x^dD ]V} xPdD ]H}d| | }yt j|t j�}W n tk rH wY nX |d| | fS W qW td��d S )NZpqrstuvwxyzPQRSTZ0123456789abcdefz/dev/ptyz/dev/ttyzout of pty devices)r �open�O_RDWRr )�x�yZpty_name�fdr r r r 1 s r c C sn t j| t j�}yddlm}m} W n tk r6 |S X y |||d� |||d� W n tk rh Y nX |S )Nr )�ioctl�I_PUSHZptemZldterm)r r r Zfcntlr r � ImportErrorr )Ztty_name�resultr r r r r r = s r c C s� yt j� \} }W n ttfk r( Y n4X | tkrTy t j� W n tk rR Y nX | |fS t� \}}t j� } | tkr�t j� t j|� t j |t � t j |t � t j |t � |t kr�t j|� t j t jt �t j�}t j|� n t j|� | |fS )N)r �forkptyr r �CHILD�setsidr r r �dup2� STDIN_FILENO� STDOUT_FILENO� STDERR_FILENOr r r )�pidr r r Ztmp_fdr r r r O s0 c C s& x |r t j| |�}||d � }qW d S )N)r �write)r �data�nr r r �_writenw s r) c C s t j| d�S )Ni )r �read)r r r r �_read} s r+ c C sz | t g}xlt|g g �\}}}| |krH|| �}|s<|j| � n tjt|� t |kr |t �}|sh|jt � q t| |� q W d S )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� \}}|tkr<tj| d f| �� y tjt�}tjt� d}W n tj k rr d}Y nX yt |||� W n( t k r� |r�tj ttj |� Y nX tj|� tj|d�d S )N� r r )�typer r r �execlp�ttyZ tcgetattrr" Zsetraw�errorr/ r Z tcsetattrZ TCSAFLUSHr �waitpid)�argvr- r. r% r �modeZrestorer r r r � s$ )r r r3 �__all__r" r# r$ r r r r r r r) r+ r/ r r r r r �<module> s (