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    ƒ fm  ã               @   sj   d Z ddlZddlZddlZdddgZG dd„ deƒZdddœd	d„Zdd
d„Zdd„ Z	e
dkrfe	ƒ  dS )zImplementation of the UUencode and UUdecode functions.

encode(in_file, out_file [,name, mode], *, backtick=False)
decode(in_file [, out_file, mode, quiet])
é    NÚErrorÚencodeÚdecodec               @   s   e Zd ZdS )r   N)Ú__name__Ú
__module__Ú__qualname__© r   r   ú'/opt/alt/python37/lib64/python3.7/uu.pyr   &   s   F)Úbacktickc         	   C   sr  g }zL| dkrt jj} n`t| tƒrz|dkr8tj | ¡}|dkrfyt | ¡j	}W n t
k
rd   Y nX t| dƒ} | | ¡ |dkrŒt jj}nt|tƒrªt|dƒ}| |¡ |dkr¶d}|dkrÂd}| dd¡}| dd	¡}| d
|d@ |f  d¡¡ |  d¡}x2t|ƒdkr2| tj||d¡ |  d¡}qW |rF| d¡ n
| d¡ W dx|D ]}| ¡  qZW X dS )zUuencode fileú-NÚrbÚwbi¶  Ú
z\núz\rzbegin %o %s
iÿ  Úasciié-   r   )r
   s   `
end
s    
end
)ÚsysÚstdinÚbufferÚ
isinstanceÚstrÚosÚpathÚbasenameÚstatÚst_modeÚAttributeErrorÚopenÚappendÚstdoutÚreplaceÚwriter   ÚreadÚlenÚbinasciiZb2a_uuÚclose)Úin_fileÚout_fileÚnameÚmoder
   Úopened_filesÚdataÚfr   r   r	   r   )   sF    









c          
   C   sz  g }| dkrt jj} nt| tƒr4t| dƒ} | | ¡ z$xr|  ¡ }|sNtdƒ‚| 	d¡sZq:| 
dd¡}t|ƒdkr:|d dkr:yt|d	 d
ƒ P W q: tk
r¦   Y q:X q:W |dkr<|d  d¡ d¡}tj |¡rätd|› ƒ‚| 	tj¡s,dtj› |ks,tjr<| 	tj¡s,dtj› |kr<td|› dƒ‚|dkrTt|d	 d
ƒ}|dkrht jj}n0t|tƒr˜t|dƒ}t ||¡ |}| |¡ |  ¡ }x¨|rH| d¡dkrHyt |¡}	W nj tjk
r0 }
 zH|d d d@ d d d }t |d|… ¡}	|s t j d|
 ¡ W dd}
~
X Y nX | |	¡ |  ¡ }q¢W |sXtdƒ‚W dx|D ]}| ¡  qbW X dS )zDecode uuencoded filer   r   z'No valid begin line found in input files   beginó    é   é   r   é   é   Ns    	
r   z Cannot overwrite existing file: z..zRefusing to write to z due to directory traversalr   s   endé    é?   é   é   zWarning: %s
zTruncated input file)r   r   r   r   r   r   r   Úreadliner   Ú
startswithÚsplitr#   ÚintÚ
ValueErrorÚrstripr   r   r   ÚexistsÚsepÚaltsepr   ÚchmodÚstripr$   Za2b_uuÚstderrr!   r%   )r&   r'   r)   Úquietr*   ZhdrZ	hdrfieldsÚfpÚsr+   ÚvÚnbytesr,   r   r   r	   r   c   sl    











"

c              C   s4  ddl } | jdd}|jddddd	d
d |jddddd	d
d | ¡ \}}t|ƒdkrl| d¡ t d¡ tjj	}tj
j	}t|ƒdkr|d }t|ƒdkr¤|d }|jrì|jràt|tƒrÆt|dƒ}nttjd dƒ t d¡ t||ƒ nD|jr&t|tƒrt|dƒ}nttjd dƒ t d¡ t||ƒ dS )zuuencode/uudecode main programr   Nz'usage: %prog [-d] [-t] [input [output]])Zusagez-dz--decoder   zDecode (instead of encode)?FÚ
store_true)ÚdestÚhelpÚdefaultÚactionz-tz--textÚtextz2data is text, encoded format unix-compatible text?r.   zincorrect number of argumentsr0   r   z: cannot do -t to stdoutr   z: cannot do -t from stdin)ÚoptparseZOptionParserZ
add_optionÚ
parse_argsr#   Úerrorr   Úexitr   r   r   r   rL   r   r   r   ÚprintÚargvr   )rM   ÚparserZoptionsÚargsÚinputÚoutputr   r   r	   Útest­   s6    




rW   Ú__main__)NN)NNF)Ú__doc__r$   r   r   Ú__all__Ú	Exceptionr   r   r   rW   r   r   r   r   r	   Ú<module>   s   
:
J&