�
܍~c� � �p � d dl mZ d dlmZ d dlmZ d dlmZ ej e � � Z
G d� d� � Z dS )� )�StringIO)�log)�util)� chop_commentc � � e Zd Zd� Zd� Zed� � � Zed� � � Zej d� � � Zed� � � Z d� Z
d� Z d � Z d
� Z
d � Zd � Zd
S )�
ResolvConfc �" � || _ d | _ d S �N)�_text� _contents)�self�texts �G/usr/lib/python3/dist-packages/cloudinit/distros/parsers/resolv_conf.py�__init__zResolvConf.__init__ s � ���
� ����� c �V � | j �!| � | j � � | _ d S d S r
)r �_parser �r
s r �parsezResolvConf.parse s+ � � �>� !� !�[�[��� 4� 4�D�N�N�N� "� !r c �T � | � � � | � d� � S )N�
nameserver�r � _retr_optionr s r � nameserverszResolvConf.nameservers s# � � �
�
� � � �� � � �.�.�.r c �l � | � � � | � d� � }|r|d S d S )N�domainr r )r
�dms r � local_domainzResolvConf.local_domain s8 � � �
�
� � � �
�
�
�x�
(�
(��
� ��a�5�L��tr c � � | � � � | � d� � | j � ddt |� � dgf� � |S )Nr �option� )r �_remove_optionr �append�str)r
r s r r zResolvConf.local_domain' sP � � �
�
� � � � ���H�%�%�%� �� � �x�(�C��K�K��)D� E�F�F�F��
r c �� � | � � � | � d� � }g }|D ]1}|� d � � D ]}|r|� |� � ��2|S )N�search)r r �splitr# )r
� current_sds�flat_sds�sdlist�sds r �search_domainszResolvConf.search_domains. sx � � �
�
� � � ��'�'��1�1� ���!� (� (�F� �l�l�4�(�(�
(�
(��� (� �O�O�B�'�'�'��
(� �r c � � | � � � t � � }| j D ]�\ }}|dk r|� d� � �!|dk r |� d|d z � � �F|dk r9|\ }}}|�d|��}t |� � r||z
}|� d|z � � ��|� � � S )N�blank�
� all_commentz%s
r r � )r r r �write�len�getvalue)r
�contents� line_type�
components�cfg_opt� cfg_value� comment_tail�lines r �__str__zResolvConf.__str__9 s� � � �
�
� � � ��:�:��'+�~�
0�
0� #�Y�
��G�#�#����t�$�$�$�$��m�+�+����v��A� � 7�8�8�8�8��h�&�&�5?�2��)�\�")�'�'�9�9�5���|�$�$� )��L�(�D����v���/�/�/��� � �"�"�"r c �r � g }| j D ],\ }}|dk r!|\ }}}||k r|� |� � �-|S )Nr �r r# )r
�opt_name�foundr6 r7 r8 r9 �
_comment_tails r r zResolvConf._retr_optionI sW � ���'+�~� ,� ,� #�Y�
��H�$�$�6@�3��)�]��h�&�&��L�L��+�+�+��� r c � � | � � � | � d� � }t |� � }|� t |� � � � t j |� � }t |� � t |� � k r|S t |� � dk r%t � d|� � |d d� S | �
d� � |D ]!}| j � dd|dgf� � �"|S )Nr � z`ignoring nameserver %r: adding would exceed the maximum of '3' name servers (see resolv.conf(5))r r! ) r r �listr# r$ r � uniq_listr3 �LOG�warningr" r )r
�ns�
current_ns�new_ns�ns r �add_nameserverzResolvConf.add_nameserverR s � � �
�
� � � ��&�&�|�4�4�
��j�!�!���
�
�c�"�g�g� � � �� ��'�'�� �v�;�;�#�j�/�/� )� )� � � �z�?�?�a� � � �K�K�8� �
�
�
� �b�q�b�>� !� ���L�)�)�)�� E� E�A� �N� !� !�8�l�A�r�-B�"C� D� D� D� D��
r c �x �� �fd�}g }| j D ]"} ||� � s|� |� � �#|| _ d S )Nc �> �� | \ }}|dk rdS |\ }}}|�k rdS dS )Nr FT� )�itemr6 r7 r8 �
_cfg_valuerA r? s �r �
remove_optz-ResolvConf._remove_option.<locals>.remove_opth s> �� �$(� !�I�z��H�$�$� �u�3=� 0�W�j�-��(�"�"� �u��4r r> )r
r? rR � new_contents�cs ` r r" zResolvConf._remove_optiong sd �� � � � � � � � �� � '� '�A� �:�a�=�=�
'� �#�#�A�&�&�&��%����r c � � | j }t |� � }|� t |� � � � t j |� � }t
|� � t
|� � k r|S t
|� � dk rt d|z � � �d� |� � }t
|� � dk rt d|z � � �| � d� � | j
� dd|dgf� � |S ) N� z8Adding %r would go beyond the '6' maximum search domainsr1 � zEAdding %r would go beyond the 256 maximum search list character limitr& r r! ) r, rD r# r$ r rE r3 �
ValueError�joinr" r )r
�
search_domainr) �new_sds�s_lists r �add_search_domainz ResolvConf.add_search_domainw s � ��&���x�.�.�����s�=�)�)�*�*�*��.��)�)�� �x�=�=�C��L�L� (� (��N� �x�=�=�A� � � �J� �"�� �
� ���'�"�"�� �v�;�;�� � � �:�=J�L�� �
�
���H�%�%�%� �� � �x�(�F�B�)?� @�A�A�A��r c �P � g }t |� � � � � D �] \ }}|� � � }|s|� d|gf� � �5t |d� � \ }}t |� � � � � s|� d|gf� � ��|sd} |� d d� � \ }} n/# t t f$ r}
t d|dz z � � |
�d }
~
ww xY w|dvrt d|z � � �|� d || |gf� � ��|S )
Nr. z;#r0 r! � z)Incorrectly formatted resolv.conf line %s)r r r& �sortlist�optionsz Unexpected resolv.conf option %sr )
� enumerate�
splitlines�stripr# r r3 r' �
IndexErrorrX �IOError) r
r5 �entries�ir; �sline�head�tailr8 �
cfg_values�es r r zResolvConf._parse� si � ���"�8�#6�#6�#8�#8�9�9� D� D�I�Q���J�J�L�L�E��
�����$�� 0�1�1�1��'��d�3�3�L�T�4��t�z�z�|�|�$�$�
����
��v� 6�7�7�7���
���
�(,�
�
�4��(;�(;�%��*�*�� �
�+�
�
�
� �?�1�q�5�I�� �������
���� � � � � � @�G� L�M�M�M� �N�N�H�w�
�D�&A�B� C� C� C� C��s �+C�C1�C,�,C1N)�__name__�
__module__� __qualname__r r �propertyr r �setterr, r< r rL r" r] r rO r r r r s� � � � � � � � � �5� 5� 5� �/� /� �X�/� �� � �X�� ��� � ��� �� � �X��#� #� #� � � �� � �*&� &� &� � � �0 � � � � r r N) �ior � cloudinitr �loggingr �cloudinit.distros.parsersr � getLoggerrn rF r rO r r �<module>rx s� �� � � � � � � $� $� $� $� $� $� � � � � � � 2� 2� 2� 2� 2� 2��g���!�!��Z� Z� Z� Z� Z� Z� Z� Z� Z� Zr |