File manager

3


 \��@s�dZd
dl
m
Z

d
dlZd
dlZdddgZd
ZdZdZd
Zd	d�Z	d
d�Z
dd
�Zdd�Zdd�Z
dd�Zdd�Zeefdd�
Zeefdd�
ZdS)zPseudo terminal utilities.�)
�selectN�openpty�fork�spawn�
�cCs<ytj
�Sttfk
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/python3.6/pty.pyrs






cCsLytj
�\}}
Wnttfk
r(


YnXtj|
�
}tj|
�

||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
Cslx^d
D]V}xPdD]H}
d||
}ytj
|tj�}Wntk
rH


wYnX|d||
fSWqWtd�
�
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�fdrrrr1s









rc
Csntj
|tj�}
yd
dlm}m}
Wntk
r6


|
SXy||
|d�
||
|d�
Wntk
rh


YnX|
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cCs�ytj
�\}}
Wnttfk
r(


Yn4X|tkrTytj�
Wntk
rR


YnX||
fSt�\}}tj�}|tkr�tj�
tj|�

tj	|t
�
tj	|t�
tj	|t�
|tkr�tj|�

tj
tjt�
tj�}tj|�

n
tj|�

||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_fdrrrrOs0


















cCs&x |
r tj
||
�}|
|d
�}
qWd
S)z#Write all the data to a descriptor.N)r�write)r�data�
nrrr�_writenws

r)c

Cstj
|d
�S)zDefault read function.i)r�read)
rrrr�_read}sr+cCsz|tg}xlt
|gg�\}}}||krH|
|�
}|s<|j|�

ntjt|�
t|kr
|t�
}|sh|jt�

q
t||�
q
Wd
S)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
�\}}|tkr<tj|df
|��
ytjt�
}tjt�

d}Wntj	k
rr


d}YnXyt
||
|�
Wn(tk
r�


|r�tjttj
|�
YnXtj|�

tj|d�dS)zCreate a spawned process.�r
r)�typerrr�execlp�ttyZ	tcgetattrr"Zsetraw�errorr/r
Z	tcsetattrZ	TCSAFLUSHr�waitpid)�argvr-r.r%r
�modeZrestorerrrr�s$




















)�__doc__rrr3�__all__r"r#r$rrrrrrr)r+r/rrrrr�<module>
s"




(