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�Z.d�d�d�Z/dS )�a0 This module provides socket operations and some related functions.
On Unix, it supports IP (Internet Protocol) and Unix domain sockets.
On other systems, it only supports IP. Functions specific for a
socket are available as methods of the socket object.
Functions:
socket() -- create a new socket object
socketpair() -- create a pair of new socket objects [*]
fromfd() -- create a socket object from an open file descriptor [*]
fromshare() -- create a socket object from data received from socket.share() [*]
gethostname() -- return the current hostname
gethostbyname() -- map a hostname to its IP number
gethostbyaddr() -- map an IP number or hostname to DNS info
getservbyname() -- map a service name and a protocol name to a port number
getprotobyname() -- map a protocol name (e.g. 'tcp') to a number
ntohs(), ntohl() -- convert 16, 32 bit int from network to host byte order
htons(), htonl() -- convert 16, 32 bit int from host to network byte order
inet_aton() -- convert IP addr string (123.45.67.89) to 32-bit packed format
inet_ntoa() -- convert 32-bit packed format IP to string (123.45.67.89)
socket.getdefaulttimeout() -- get the default timeout value
socket.setdefaulttimeout() -- set the default timeout value
create_connection() -- connects to an address, with an optional timeout and
optional source address.
[*] not available on all platforms!
Special objects:
SocketType -- type object for socket objects
error -- exception raised for I/O errors
has_ipv6 -- boolean value indicating if IPv6 is supported
IntEnum constants:
AF_INET, AF_UNIX -- socket domains (first argument to socket() call)
SOCK_STREAM, SOCK_DGRAM, SOCK_RAW -- socket types (second argument)
Integer constants:
Many other constants may be defined; these may be used in calls to
the setsockopt() and getsockopt() methods.
� N)�*)�IntEnum�IntFlag�EBADF� �EAGAIN� � EWOULDBLOCK�fromfd�getfqdn�create_connection�
create_server�has_dualstack_ipv6�
AddressFamily�
SocketKindc C s | � � o| �d�S )NZAF_��isupper�
startswith��C� r � /usr/lib/python3.8/socket.py�<lambda>L � r c C s | � � o| �d�S )NZSOCK_r r r r r r Q r ZMsgFlagc C s | � � o| �d�S )NZMSG_r r r r r r V r Z AddressInfoc C s | � � o| �d�S )NZAI_r r r r r r [ r z 127.0.0.1z::1c C s( z
|| �W S t k
r" | Y S X dS )z{Convert a numeric family value to an IntEnum member.
If it's not a known member, return the numeric value itself.
N)�
ValueError)�valueZ
enum_klassr r r �_intenum_convertera s
r �winz)Specified event object handle is invalid.� z Insufficient memory available.� z#One or more parameters are invalid.�W z Overlapped operation aborted.i� z2Overlapped I/O event object not in signaled state.i� z)Overlapped operation will complete later.i� z The operation was interrupted.i' z A bad file handle was passed.i' zPermission denied.i ' z!A fault occurred on the network??i ' z#An invalid operation was attempted.i&' zToo many open files.i(' z The socket operation would blocki3' z,A blocking operation is already in progress.i4' z Operation already in progress.i5' z Socket operation on nonsocket.i6' z Destination address required.i7' zMessage too long.i8' z Protocol wrong type for socket.i9' zBad protocol option.i:' zProtocol not supported.i;' zSocket type not supported.i<' zOperation not supported.i=' z Protocol family not supported.i>' z0Address family not supported by protocol family.i?' z The network address is in use.i@' z Cannot assign requested address.iA' zNetwork is down.iB' zNetwork is unreachable.iC' z$Network dropped connection on reset.iD' z!Software caused connection abort.iE' z The connection has been reset.iF' zNo buffer space available.iG' z Socket is already connected.iH' zSocket is not connected.iI' z The network has been shut down.iJ' zToo many references.iK' zThe operation timed out.iL' zConnection refused.iM' zCannot translate name.iN' zThe name is too long.iO' zThe host is down.iP' zThe host is unreachable.iQ' zDirectory not empty.iR' zToo many processes.iS' zUser quota exceeded.iT' zDisk quota exceeded.iU' z Stale file handle reference.iV' zItem is remote.iW' z!Network subsystem is unavailable.ik' z!Winsock.dll version out of range.il' z(Successful WSAStartup not yet performed.im' z Graceful shutdown in progress.iu' z*No more results from WSALookupServiceNext.iv' zCall has been canceled.iw' z Procedure call table is invalid.ix' z Service provider is invalid.iy' z&Service provider failed to initialize.iz' zSystem call failure.i{' zService not found.i|' zClass type not found.i}' i~' zCall was canceled.i' zDatabase query was refused.i�' zHost not found.i�* z Nonauthoritative host not found.i�* z This is a nonrecoverable error.i�* z*Valid name, no data record requested type.i�* zQoS receivers.i�* z QoS senders.i�* zNo QoS senders.i�* zQoS no receivers.i + zQoS request confirmed.i+ zQoS admission error.i+ zQoS policy failure.i+ zQoS bad style.i+ zQoS bad object.i+ zQoS traffic control error.i+ zQoS generic error.i+ zQoS service type error.i+ zQoS flowspec error.i + z Invalid QoS provider buffer.i
+ zInvalid QoS filter style.i + i + zIncorrect QoS filter count.i
+ zInvalid QoS object length.i+ zIncorrect QoS flow count.i+ zUnrecognized QoS object.i+ zInvalid QoS policy object.i+ z Invalid QoS flow descriptor.i+ z'Invalid QoS provider-specific flowspec.i+ z)Invalid QoS provider-specific filterspec.i+ z&Invalid QoS shape discard mode object.i+ z Invalid QoS shaping rate object.i+ z!Reserved policy QoS element type.i+ �errorTabc @ s e Zd ZdS )�_GiveupOnSendfileN)�__name__�
__module__� __qualname__r r r r r" � s r" c s, e Zd ZdZdddgZd9dd�Zd d
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d<d d �Zd=d d �Zd d!� Zd>d"d#�Zd$d%� Zejfd&d'�Zd(d)� Z� fd*d+�Ze� fd,d-��Ze� fd.d/��Zej d0k�rd1d2� Z d3d4� Z nd5d2� Z d6d4� Z d7e _d8e _� Z S )?�socketz:A subclass of _socket.socket adding the makefile() method.� __weakref__�_io_refs�_closed���Nc C sP |d kr,|dkrt }|dkr t}|dkr,d}tj�| ||||� d| _d| _d S )Nr* r F)�AF_INET� SOCK_STREAM�_socketr& �__init__r( r) )�self�family�type�proto�filenor r r r. � s zsocket.__init__c C s | S �Nr �r/ r r r � __enter__� s zsocket.__enter__c G s | j s| �� d S r4 )r) �close)r/ �argsr r r �__exit__� s zsocket.__exit__c C s� t | dd�}d| jj| jj|r"dnd| �� | j| j| jf }|s�z | �� }|r^|dt |� 7 }W n t
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rt Y nX z | � � }|r�|dt |� 7 }W n t
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r� Y nX |d7 }|S ) zVWrap __repr__() to reveal the real class name and socket
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��zsocket.__repr__c C s t d| jj�d���d S )Nzcannot pickle z object)� TypeErrorr= r# r5 r r r � __getstate__ s zsocket.__getstate__c C s6 t | �� �}| j| j| j| j|d�}|�| �� � |S )z�dup() -> socket object
Duplicate the socket. Return a new socket object connected to the same
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�r3 )�dupr3 r= r0 r1 r2 �
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socket.dupc C sF | � � \}}t| j| j| j|d�}t� dkr>| �� r>|�d� ||fS )z�accept() -> (socket object, address info)
Wait for an incoming connection. Return a new socket
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rF NT)Z_acceptr& r0 r1 r2 ZgetdefaulttimeoutrI � setblocking)r/ rJ �addrrK r r r �accept s
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| |||�} || _ | S ) z�makefile(...) -> an I/O stream connected to the socket
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|d��r�|�|� X d S )Nr i @�&non-blocking sockets are not supported� PollSelector�seekz timed out)�_check_sendfile_paramsr3 �AttributeErrorrY �UnsupportedOperationr" �os�fstat�st_size�OSError�minrI r �hasattr� selectorsrg ZSelectSelector�registerZ EVENT_WRITEZselectre rh r- �timeout�BlockingIOError)r/ �file�offset�countZsocknor3 �errZfsize� blocksizert Zselector�
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z socket._sendfile_use_sendfilec C s t d��d S )Nz,os.sendfile() not available on this platform)r" �r/ rv rw rx r r r r} � s �c
C s� | � |||� | �� dkr"td��|r0|�|� |r>t|d�nd}d}|j}| j}z�|rpt|| |�}|dkrpq�t||��}|s�q�z ||�} W n t k
r� Y q�Y q�X || 7 }| t
|�k r�|| d � }q�qTq�qT|W �S |dkr�t|d�r�|�|| � X d S )Nr rf i rh ) ri rI r rh rp �read�sendrq �
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r/ rv rw rx rz r{ Z file_readZ sock_send�datar| r r r �_sendfile_use_send� s8
zsocket._sendfile_use_sendc C sd dt |dd�krtd��| jt@ s*td��|d k r`t|t�sJtd�|���|dkr`td�|���d S )NrT r_ z$file should be opened in binary modez+only SOCK_STREAM type sockets are supportedz+count must be a positive integer (got {!r})r )r< r r1 r, �
isinstance�intrD �formatr~ r r r ri � s
��z socket._check_sendfile_paramsc C s8 z| � |||�W S tk
r2 | �|||� Y S X dS )a_ sendfile(file[, offset[, count]]) -> sent
Send a file until EOF is reached by using high-performance
os.sendfile() and return the total number of bytes which
were sent.
*file* must be a regular file object opened in binary mode.
If os.sendfile() is not available (e.g. Windows) or file is
not a regular file socket.send() will be used instead.
*offset* tells from where to start reading the file.
If specified, *count* is the total number of bytes to transmit
as opposed to sending the file until EOF is reached.
File position is updated on return or also in case of error in
which case file.tell() can be used to figure out the number of
bytes which were sent.
The socket must be of SOCK_STREAM type.
Non-blocking sockets are not supported.
N)r} r" r� r~ r r r re � s zsocket.sendfilec C s* | j dkr| j d8 _ | jr&| �� d S )Nr rU )r( r) r7 r5 r r r �_decref_socketios� s
zsocket._decref_socketiosc C s |� | � d S r4 )r7 )r/ Z_ssr r r � _real_close� s zsocket._real_closec C s d| _ | jdkr| �� d S )NTr )r) r( r� r5 r r r r7 � s
z socket.closec s d| _ t� �� S )a detach() -> file descriptor
Close the socket object without closing the underlying file descriptor.
The object cannot be used after this call, but the file descriptor
can be reused for other purposes. The file descriptor is returned.
T)r) �super�detachr5 �r= r r r� � s z
socket.detachc s t t� jt�S )z@Read-only access to the address family for this socket.
)r r� r0 r r5 r� r r r0 s z
socket.familyc s t t� jt�S )z-Read-only access to the socket type.
)r r� r1 r r5 r� r r r1 s z socket.type�ntc C s t �| �� �S r4 )rl Zget_handle_inheritabler3 r5 r r r �get_inheritable
s zsocket.get_inheritablec C s t �| �� |� d S r4 )rl Zset_handle_inheritabler3 �r/ Z inheritabler r r �set_inheritable s zsocket.set_inheritablec C s t �| �� �S r4 )rl r� r3 r5 r r r r� s c C s t �| �� |� d S r4 )rl r� r3 r� r r r r� s z&Get the inheritable flag of the socketz&Set the inheritable flag of the socket)r* r* r* N)rO N)r N)r N)r N)r N) r# r$ r% �__doc__� __slots__r. r6 r9 rC rE rG rN rd rq rl r} r� ri re r� r- r& r� r7 r� �propertyr0 r1 �namer� r� �
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r& c C s t | �}t||||�S )z� fromfd(fd, family, type[, proto]) -> socket object
Create a socket object from a duplicate of the given file
descriptor. The remaining arguments are the same as for socket().
)rG r& )rJ r0 r1 r2 Znfdr r r r
s Zsharec C s t ddd| �S )z� fromshare(info) -> socket object
Create a socket object from the bytes object returned by
socket.share(pid).
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r( t} Y nX t�| ||�\}}t| |||�� �}t| |||�� �}||fS )aa socketpair([family[, type[, proto]]]) -> (socket object, socket object)
Create a pair of socket objects from the sockets returned by the platform
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The arguments are the same as for socket() except the default family is
AF_UNIX if defined on the platform; otherwise, the default is AF_INET.
N)ZAF_UNIX� NameErrorr+ r- r� r& r� )r0 r1 r2 �arT r r r r� . s
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r0 r1 r2 �hostZlsockrM �portZcsockZssock�_r r r r� C s8
a8 socketpair([family[, type[, proto]]]) -> (socket object, socket object)
Create a pair of socket objects from the sockets returned by the platform
socketpair() function.
The arguments are the same as for socket() except the default family is AF_UNIX
if defined on the platform; otherwise, the default is AF_INET.
c sp e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
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c C sZ |dkrt d| ��tj�| � || _d|kr6|d7 }|| _d|k| _d|k| _d| _d S )N)rO rS Zrw�rb�wbZrwbzinvalid mode: %rrT rO rS F) r rY � RawIOBaser. �_sock�_mode�_reading�_writing�_timeout_occurred)r/ rK r_ r r r r. � s
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C s� | � � | �� | jr td��z| j�|�W S tk
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dS � W 5 d}~X Y q X q dS )a3 Read up to len(b) bytes into the writable buffer *b* and return
the number of bytes read. If the socket is non-blocking and no bytes
are available, None is returned.
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was shutdown at the other end.
z!cannot read from timed out objectTr N)
� _checkClosed�_checkReadabler� ro r� Z recv_intort r@ r8 �_blocking_errnos�r/ rT �er r r �readinto� s
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dS � W 5 d}~X Y nX dS )a Write the given bytes or bytearray object *b* to the socket
and return the number of bytes written. This can be less than
len(b) if not all data could be written. If the socket is
non-blocking and no bytes could be written None is returned.
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zSocketIO.writec C s | j rtd��| jS )z2True if the SocketIO is open for reading.
� I/O operation on closed socket.)rA r r� r5 r r r �readable� s zSocketIO.readablec C s | j rtd��| jS )z2True if the SocketIO is open for writing.
r� )rA r r� r5 r r r �writable� s zSocketIO.writablec s | j rtd��t� �� S )z2True if the SocketIO is open for seeking.
r� )rA r r� �seekabler5 r� r r r� � s zSocketIO.seekablec C s | � � | j�� S )z=Return the file descriptor of the underlying socket.
)r� r� r3 r5 r r r r3 � s zSocketIO.filenoc C s | j s| �� S dS d S )Nr* )rA r3 r5 r r r r� � s z
SocketIO.namec C s | j S r4 )r� r5 r r r r_ � s z
SocketIO.modec C s* | j r
dS tj�| � | j�� d| _dS )z�Close the SocketIO object. This doesn't close the underlying
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N)rA rY r� r7 r� r� r5 r r r r7 � s
zSocketIO.close)r# r$ r% r� r. r� r� r� r� r� r3 r� r� r_ r7 r� r r r� r rX r s
rX r: c C sl | � � } | r| dkrt� } zt| �\}}}W n tk
r@ Y n(X |�d|� |D ]} d| krR qhqR|} | S )a Get fully qualified domain name from name.
An empty argument is interpreted as meaning the local host.
First the hostname returned by gethostbyaddr() is checked, then
possibly existing aliases. In case no FQDN is available, hostname
from gethostname() is returned.
z0.0.0.0r �.)�stripZ gethostnameZ
gethostbyaddrr@ �insert)r� Zhostname�aliasesZipaddrsr r r r � s c C s� | \}}d}t ||dt�D ]�}|\}}} }
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X Y qX q|dk r�z|�W 5 d}X ntd��dS )ac Connect to *address* and return the socket object.
Convenience function. Connect to *address* (a 2-tuple ``(host,
port)``) and return the socket object. Passing the optional
*timeout* parameter will set the timeout on the socket instance
before attempting to connect. If no *timeout* is supplied, the
global default timeout setting returned by :func:`getdefaulttimeout`
is used. If *source_address* is set it must be a tuple of (host, port)
for the socket to bind as a source address before making the connection.
A host of '' or port 0 tells the OS to use the default.
Nr z!getaddrinfo returns an empty list) � getaddrinfor, r& �_GLOBAL_DEFAULT_TIMEOUTrH r� r� r@ r7 )�addressrt Zsource_addressr� r� ry �res�af�socktyper2 � canonname�sarK r� r r r r s.
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rf Y dS X dS )z�Return True if the platform supports creating a SOCK_STREAM socket
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� IPPROTO_IPV6� IPV6_V6ONLYFr TN)
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a� Convenience function which creates a SOCK_STREAM type socket
bound to *address* (a 2-tuple (host, port)) and return the socket
object.
*family* should be either AF_INET or AF_INET6.
*backlog* is the queue size passed to socket.listen().
*reuse_port* dictates whether to use the SO_REUSEPORT socket option.
*dualstack_ipv6*: if true and the platform supports it, it will
create an AF_INET6 socket able to accept both IPv4 or IPv6
connections. When false it will explicitly disable this option on
platforms that enable it by default (e.g. Linux).
>>> with create_server(('', 8000)) as server:
... while True:
... conn, addr = server.accept()
... # handle new connection
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| f� q|S )a� Resolve host and port into list of address info entries.
Translate the host/port argument into a sequence of 5-tuples that contain
all the necessary arguments for creating a socket connected to that service.
host is a domain name, a string representation of an IPv4/v6 address or
None. port is a string service name such as 'http', a numeric port number or
None. By passing None as the value of host and port, you can pass NULL to
the underlying C API.
The family, type and proto arguments can be optionally specified in order to
narrow the list of addresses returned. Passing zero as a value for each of
these arguments selects the full range of results.
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