✏️ 编辑：socket.cpython-39.pyc
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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 [*] send_fds() -- Send file descriptor to the socket. recv_fds() -- Recieve file descriptors from the socket. 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� SocketKindr c C s | � � o| �d�S )NZAF_��isupper� startswith��C� r � /usr/lib64/python3.9/socket.py�<lambda>N � r r c C s | � � o| �d�S )NZSOCK_r r r r r r S r �MsgFlagc C s | � � o| �d�S )NZMSG_r r r r r r X r � 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 y | Y S 0 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)�value� enum_klassr r r �_intenum_converterc 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% � r r% c s* e Zd ZdZg d�Zd7dd�Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z d8dddd�dd�Z e ed�rxd9dd�Zn d:dd�Zd;d d �Zd d � Zd<d d!�Zd"d#� Zejfd$d%�Zd&d'� Z� fd(d)�Ze� fd*d+��Ze� fd,d-��Zej d.k�rd/d0� Z d1d2� Z nd3d0� Z d4d2� Z d5e _d6e _� Z S )=�socketz:A subclass of _socket.socket adding the makefile() method.)� __weakref__�_io_refs�_closed���Nc C sP |d u r,|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 r1 � s zsocket.__init__c C s | S �Nr �r2 r r r � __enter__� s zsocket.__enter__c G s | j s| �� d S r7 )r, �close)r2 �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 yr Y n0 z | � � }|r�|dt |� 7 }W n t y� Y n0 |d7 }|S ) zVWrap __repr__() to reveal the real class name and socket address(es). r, Fz,<%s.%s%s fd=%i, family=%s, type=%s, proto=%iz [closed]� z , laddr=%sz , raddr=%s�>) �getattr� __class__r' r( r6 r3 r4 r5 � getsockname�str�error� getpeername)r2 �closed�s�laddr�raddrr r r �__repr__� s4 �� zsocket.__repr__c C s t d| jj�d���d S )Nzcannot pickle z object)� TypeErrorr@ r& r8 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 system resource. The new socket is non-inheritable. �r6 )�dupr6 r@ r3 r4 r5 � settimeout� gettimeout)r2 �fd�sockr r r rM s z socket.dupc C sF | � � \}}t| j| j| j|d�}t� du r>| �� r>|�d� ||fS )z�accept() -> (socket object, address info) Wait for an incoming connection. Return a new socket representing the connection, and the address of the client. For IP sockets, the address info is a pair (hostaddr, port). rL NT)�_acceptr) r3 r4 r5 �getdefaulttimeoutrO � setblocking)r2 rP �addrrQ r r r �accept s z socket.accept�r)�encoding�errors�newlinec C s t |�h d�ks td|f ��d|v }d|v p2| }|s@|s@J �d|v }d} |rX| d7 } |rd| d7 } t| | �} | jd7 _|du r�d }|d k r�tj}|d kr�|s�td ��| S |r�|r�t�| | |�} n&|r�t�| |�} n|s�J �t�| |�} |r�| S t� | |||�} || _ | S ) z�makefile(...) -> an I/O stream connected to the socket The arguments are as for io.open() after the filename, except the only supported mode values are 'r' (default), 'w' and 'b'. > �w�brW z&invalid mode %r (only r, w, b allowed)r[ rW r\ r= � Nr- r z!unbuffered streams must be binary) �setr �SocketIOr+ �io�DEFAULT_BUFFER_SIZE�BufferedRWPair�BufferedReader�BufferedWriter� TextIOWrapper�mode) r2 rf � bufferingrX rY rZ �writing�reading�binary�rawmode�raw�buffer�textr r r �makefile. s@ zsocket.makefile�sendfiler c C s | � |||� | �� }z |�� }W n2 ttjfyT } zt|��W Y d }~n d }~0 0 zt�|�j}W n, t y� } zt|��W Y d }~n d }~0 0 |s�dS t |p�|d�}| � � } | dkr�t d��t td�r�t�� } nt�� } | �|tj� d} | j} tj} � z�| �r| | ��st�d��|�r6|| }|dk�r6�q�z| ||||�}W nb t�yn | �sd| � Y �q Y n\ t �y� } z$| dk�r�t|��|d �W Y d }~n(d }~0 0 |dk�r��q�||7 }| |7 } �q | W | dk�r�t |d��r�|�|� S n"| dk�rt |d��r|�|� 0 d S )Nr i @�&non-blocking sockets are not supported� PollSelectorz timed out�seek)�_check_sendfile_paramsr6 �AttributeErrorr` �UnsupportedOperationr% �os�fstat�st_size�OSError�minrO r �hasattr� selectorsrr �SelectSelector�register� EVENT_WRITE�selectrp r0 �timeout�BlockingIOErrorrs )r2 �file�offset�count�socknor6 �err�fsize� blocksizer� �selector� total_sent�selector_select� os_sendfile�sentr r r �_sendfile_use_sendfileZ sh � �z socket._sendfile_use_sendfilec C s t d��d S )Nz,os.sendfile() not available on this platform)r% �r2 r� r� r� r r r r� � s �c C s | � |||� | �� dkr"td��|r0|�|� |r>t|d�nd}d}|j}| j}z�|rpt|| |�}|dkrpq�t||��}|s�q�z ||�} W n ty� Y q�Y q�0 || 7 }| t |�k r�|| d � }q�qTq�qT|W |dkr�t |d�r�|�|| � S n&|dk�rt |d��r|�|| � 0 d S )Nr rq i rs ) rt rO r rs r{ �read�send� memoryviewr� �lenr| ) r2 r� r� r� r� r� � file_read� sock_send�datar� r r r �_sendfile_use_send� sB � �zsocket._sendfile_use_sendc C sd dt |dd�vrtd��| jt@ s*td��|d ur`t|t�sJtd�|���|dkr`td�|���d S )Nr\ rf z$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 r4 r/ � isinstance�intrJ �formatr� r r r rt � s ��z socket._check_sendfile_paramsc C s6 z| � |||�W S ty0 | �|||� Y S 0 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 rp � s zsocket.sendfilec C s* | j dkr| j d8 _ | jr&| �� d S )Nr r] )r+ r, r: r8 r r r �_decref_socketios� s zsocket._decref_socketiosc C s |� | � d S r7 )r: )r2 �_ssr r r � _real_close� s zsocket._real_closec C s d| _ | jdkr| �� d S )NTr )r, r+ r� r8 r r r r: � 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�detachr8 �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� r3 r r8 r� r r r3 s z socket.familyc s t t� jt�S )z-Read-only access to the socket type. )r r� r4 r r8 r� r r r4 s z socket.type�ntc C s t �| �� �S r7 )rw Zget_handle_inheritabler6 r8 r r r �get_inheritable s zsocket.get_inheritablec C s t �| �� |� d S r7 )rw Zset_handle_inheritabler6 �r2 � inheritabler r r �set_inheritable s zsocket.set_inheritablec C s t �| �� �S r7 )rw r� r6 r8 r r r r� s c C s t �| �� |� d S r7 )rw r� r6 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)rW N)r N)r N)r N)r N) r& r' r( �__doc__� __slots__r1 r9 r< rI rK rM rV ro r| rw r� r� rt rp r� r0 r) r� r: r� �propertyr3 r4 �namer� r� � __classcell__r r r� r r) � sB � * A $ 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(). )rM r) )rP r3 r4 r5 �nfdr r r r s r �sendmsgc C s | � |tjtjt�d|�fg�S )z� send_fds(sock, buffers, fds[, flags[, address]]) -> integer Send the list of file descriptors fds over an AF_UNIX socket. �i)r� r0 � SOL_SOCKET� SCM_RIGHTS�array)rQ �buffers�fds�flags�addressr r r �send_fds& s �r� �recvmsgc C s� t � d�}| �|t�||j ��\}}}}|D ]B\}} } |tjkr.| tjkr.|�| dt| �t| �|j � � q.|t |�||fS )z� recv_fds(sock, bufsize, maxfds[, flags]) -> (data, list of file descriptors, msg_flags, address) Receive up to maxfds file descriptors returning the message data and a list containing the descriptors. r� N) r� r� r0 �CMSG_LEN�itemsizer� r� � frombytesr� �list) rQ �bufsize�maxfdsr� r� �msg�ancdatarU � cmsg_level� cmsg_type� cmsg_datar r r �recv_fds2 s � � r� �sharec C s t ddd| �S )z� fromshare(info) -> socket object Create a socket object from the bytes object returned by socket.share(pid). r )r) )�infor r r � fromshareF s r� c C s\ | t krt}n| tkr t}ntd��|tkr4td��|dkrDtd��t| ||�}z�|�|df� |�� |� � d d� \}}t| ||�}zN|� d� z|� ||f� W n t t fy� Y n0 |� d� |�� \}} W n |�� � Y n0 W |�� n |�� 0 z0|� � |�� k�s*|� � |�� k�r2td��W n |�� |�� � Y n0 ||fS ) Nz?Only AF_INET and AF_INET6 socket address families are supportedz)Only SOCK_STREAM socket type is supportedr z Only protocol zero is supported� FTzUnexpected peer connection)r. � _LOCALHOST�AF_INET6� _LOCALHOST_V6r r/ r) �bind�listenrA rT �connectr� �InterruptedErrorrV r: rD �ConnectionError) r3 r4 r5 �host�lsockrU �port�csock�ssock�_r r r �_fallback_socketpairR sL �� r� � socketpairc C sf | d u r(zt } W n ty& t} Y n0 t�| ||�\}}t| |||�� �}t| |||�� �}||fS r7 )�AF_UNIX� NameErrorr. r0 r� r) r� )r3 r4 r5 �ar\ r r r r� � s 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 d � Z� fd d �Z dd� Z e dd� �Z e dd� �Z dd� Z� ZS )r_ z�Raw I/O implementation for stream sockets. This class supports the makefile() method on sockets. It provides the raw I/O interface on top of a socket object. c C sZ |dvrt d| ��tj�| � || _d|vr6|d7 }|| _d|v | _d|v | _d| _d S )N)rW r[ �rw�rb�wb�rwbzinvalid mode: %rr\ rW r[ F) r r` � RawIOBaser1 �_sock�_mode�_reading�_writing�_timeout_occurred)r2 rQ rf r r r r1 � s zSocketIO.__init__c C s� | � � | �� | jr td��z| j�|�W S tyF d| _� Y q ty� } z*|jd t v rpW Y d}~dS � W Y d}~q d}~0 0 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. If *b* is non-empty, a 0 return value indicates that the connection was shutdown at the other end. z!cannot read from timed out objectTr N) � _checkClosed�_checkReadabler� rz r� � recv_intor� rC r; �_blocking_errnos�r2 r\ �er r r �readinto� s zSocketIO.readintoc C sf | � � | �� z| j�|�W S ty` } z*|jd tv rJW Y d}~dS � W Y d}~n d}~0 0 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. r N)r� �_checkWritabler� r� rC r; r� r� r r r �write� s zSocketIO.writec C s | j rtd��| jS )z2True if the SocketIO is open for reading. � I/O operation on closed socket.)rE r r� r8 r r r �readable� s zSocketIO.readablec C s | j rtd��| jS )z2True if the SocketIO is open for writing. r� )rE r r� r8 r r r �writable� s zSocketIO.writablec s | j rtd��t� �� S )z2True if the SocketIO is open for seeking. r� )rE r r� �seekabler8 r� r r r� � s zSocketIO.seekablec C s | � � | j�� S )z=Return the file descriptor of the underlying socket. )r� r� r6 r8 r r r r6 � s zSocketIO.filenoc C s | j s| �� S dS d S )Nr- )rE r6 r8 r r r r� s z SocketIO.namec C s | j S r7 )r� r8 r r r rf s z SocketIO.modec C s* | j r dS tj�| � | j�� d| _dS )z�Close the SocketIO object. This doesn't close the underlying socket, except if all references to it have disappeared. N)rE r` r� r: r� r� r8 r r r r: s zSocketIO.close)r& r' r( r� r1 r� r� r� r� r� r6 r� r� rf r: r� r r r� r r_ � s r_ r= c C sj | � � } | r| dkrt� } zt| �\}}}W n ty> Y n(0 |�d|� |D ]} d| v rP qfqP|} | S )at 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 and `name` was given, it is returned unchanged. If `name` was empty or '0.0.0.0', hostname from gethostname() is returned. z0.0.0.0r �.)�strip� gethostname� gethostbyaddrrC �insert)r� �hostname�aliases�ipaddrsr r r r s r c C s� | \}}d}t ||dt�D ]�}|\}}} } } d} zDt||| �} |turP| �|� |r^| �|� | �| � d}| W S ty� } z | }| dur�| �� W Y d} ~ qd} ~ 0 0 q|dur�z |�W d}q�d}0 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_TIMEOUTrN r� r� rC r: )r� r� �source_addressr� r� r� �res�af�socktyper5 � canonname�sarQ r� r r r r 3 s. r c C sv t rttd�rttd�s dS z@ttt��"} | �ttd� W d � W dS 1 sP0 Y W n t yp Y dS 0 dS )z�Return True if the platform supports creating a SOCK_STREAM socket which can handle both AF_INET and AF_INET6 (IPv4 / IPv6) connections. � IPPROTO_IPV6� IPV6_V6ONLYFr NT) �has_ipv6r| r0 r) r� r/ � setsockoptr r rC )rQ r r r r ` s �� & r F)r3 �backlog� reuse_port�dualstack_ipv6c C sl |rt td�std��|r8t� s(td��|tkr8td��t|t�}�ztjdvr�t td�r�z|� t t d� W n t y~ Y n0 |r�|� t t d� tr�|tkr�|r�|� ttd� n"t td �r�t td �r�|� ttd� z|�| � W nB t �y$ } z(d |j| f }t |j|�d �W Y d }~n d }~0 0 |d u �r:|�� n |�|� |W S t �yf |�� � Y n0 d S ) 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 � SO_REUSEPORTz+SO_REUSEPORT not supported on this platformz-dualstack_ipv6 not supported on this platformz'dualstack_ipv6 requires AF_INET6 family)r� �cygwin� SO_REUSEADDRr] r r r z+%s (while attempting to bind on address %r)N)r| r0 r r r� r) r/ rw r� r r� r rC r r r r r� �strerror�errnor� r: )r� r3 r r r rQ r� r� r r r r p sN � ��$ r c C sP g }t �| |||||�D ]2}|\}} }} } |�t|t�t| t�|| | 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. )r0 r� �appendr r r ) r� r� r3 r4 r5 r� �addrlistr� r� r r r r r r r� � s �r� )r )r N)r )r= )r r r r )3r� r0 rw �sysr` r} �enumr r r � ImportErrorr? r r r �__all__�extend�_get_exports_list� _convert_r& r� r� r �platform�lowerr r$ r � Exceptionr% r) r r| r� r� r� r� r. r/ r� r� r� r� r_ r �objectr� r r r r� r r r r �<module> sP / ���� F 6 u � -� E
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