
Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­Â�Â­
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  \›  ã               @   sŽ   d dl m Z  d dlZd dlZdddgZd ZdZdZd Zdd„ Zd	d
„ Z	dd„ Z
dd„ Zdd„ Zdd„ Zdd„ Zeefdd„Zeefdd„ZdS )é    )ÚselectNÚopenptyÚforkÚspawné   é   c              C   s<   yt jƒ S  ttfk
r    Y nX tƒ \} }t|ƒ}| |fS )N)Úosr   ÚAttributeErrorÚOSErrorÚ_open_terminalÚ
slave_open)Ú	master_fdÚ
slave_nameÚslave_fd© r   ú/usr/lib64/python3.6/pty.pyr      s    
c              C   sL   yt jƒ \} }W n ttfk
r(   Y nX t j|ƒ}t j|ƒ | |fS tƒ S )N)r   r   r	   r
   ÚttynameÚcloser   )r   r   r   r   r   r   Úmaster_open!   s    

r   c              C   sl   x^dD ]V} xPdD ]H}d|  | }yt j|t jƒ}W n tk
rH   wY nX |d|  | fS W qW tdƒ‚d S )NZpqrstuvwxyzPQRSTZ0123456789abcdefz/dev/ptyz/dev/ttyzout of pty devices)r   ÚopenÚO_RDWRr
   )ÚxÚyZpty_nameÚfdr   r   r   r   1   s    

r   c             C   sn   t j| t jƒ}yddlm}m} W n tk
r6   |S X y|||dƒ |||dƒ W n tk
rh   Y nX |S )Nr   )ÚioctlÚI_PUSHZptemZldterm)r   r   r   Zfcntlr   r   ÚImportErrorr
   )Ztty_nameÚresultr   r   r   r   r   r   =   s    r   c              C   sð   yt jƒ \} }W n ttfk
r(   Y n4X | tkrTyt jƒ  W n tk
rR   Y nX | |fS tƒ \}}t jƒ } | tkrÞt jƒ  t j|ƒ t j	|t
ƒ t j	|tƒ t j	|tƒ |tkr¾t j|ƒ t jt jtƒt jƒ}t j|ƒ n
t j|ƒ | |fS )N)r   Úforkptyr	   r
   ÚCHILDÚsetsidr   r   r   Údup2ÚSTDIN_FILENOÚSTDOUT_FILENOÚSTDERR_FILENOr   r   r   )Úpidr   r   r   Ztmp_fdr   r   r   r   O   s0    



c             C   s&   x |r t j| |ƒ}||d … }qW d S )N)r   Úwrite)r   ÚdataÚnr   r   r   Ú_writenw   s    r)   c             C   s   t j| dƒS )Ni   )r   Úread)r   r   r   r   Ú_read}   s    r+   c             C   sz   | t g}xlt|g g ƒ\}}}| |krH|| ƒ}|s<|j| ƒ ntjt|ƒ t |kr
|t ƒ}|sh|jt ƒ q
t| |ƒ q
W d S )N)r"   r   Úremover   r&   r#   r)   )r   Úmaster_readÚ
stdin_readZfdsZrfdsZwfdsZxfdsr'   r   r   r   Ú_copy�   s    r/   c             C   sÈ   t | ƒt dƒkr| f} tƒ \}}|tkr<tj| d f| žŽ  ytjtƒ}tjtƒ d}W n tj	k
rr   d}Y nX yt
|||ƒ W n( tk
r¬   |r¨tjttj|ƒ Y nX tj|ƒ tj|dƒd S )NÚ r   r   )Útyper   r   r   ÚexeclpÚttyZ	tcgetattrr"   ZsetrawÚerrorr/   r
   Z	tcsetattrZ	TCSAFLUSHr   Úwaitpid)Úargvr-   r.   r%   r   ÚmodeZrestorer   r   r   r   –   s$    




)r   r   r3   Ú__all__r"   r#   r$   r   r   r   r   r   r   r)   r+   r/   r   r   r   r   r   Ú<module>	   s    
(