AlkantarClanX12
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d d � Z d d � Z e e d d � Z e e d d � Z d S)zPseudo terminal utilities.� )�selectN�openpty�fork�spawn� � c C sN y t j � SWn t t f k
r( Yn Xt � \ } } t | � } | | f S)zdopenpty() -> (master_fd, slave_fd)
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r0 Yn' Xt j | � } t j | � | | f St � S)z�master_open() -> (master_fd, slave_name)
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rX w Yn X| d | | f SWq Wt d � � d S)z1Open pty master and return (master_fd, tty_name).ZpqrstuvwxyzPQRSTZ0123456789abcdefz/dev/ptyz/dev/ttyzout of pty devicesN)r �open�O_RDWRr
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| � n Yn Xt j | � t j | d � d S)zCreate a spawned process.� r r )�typer r r �execlp�ttyZ tcgetattrr" Zsetraw�errorr/ r
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