shutdown man page on Gentoo

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SHUTDOWN(3P)		   POSIX Programmer's Manual		  SHUTDOWN(3P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the	 corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

NAME
       shutdown — shut down socket send and receive operations

SYNOPSIS
       #include <sys/socket.h>

       int shutdown(int socket, int how);

DESCRIPTION
       The shutdown() function shall cause all or part of a  full-duplex  con‐
       nection	on the socket associated with the file descriptor socket to be
       shut down.

       The shutdown() function takes the following arguments:

       socket	   Specifies the file descriptor of the socket.

       how	   Specifies the type of shutdown. The values are as follows:

		   SHUT_RD     Disables further receive operations.

		   SHUT_WR     Disables further send operations.

		   SHUT_RDWR   Disables further send and receive operations.

       The shutdown() function disables subsequent send and/or receive	opera‐
       tions on a socket, depending on the value of the how argument.

RETURN VALUE
       Upon  successful	 completion,  shutdown() shall return 0; otherwise, −1
       shall be returned and errno set to indicate the error.

ERRORS
       The shutdown() function shall fail if:

       EBADF  The socket argument is not a valid file descriptor.

       EINVAL The how argument is invalid.

       ENOTCONN
	      The socket is not connected.

       ENOTSOCK
	      The socket argument does not refer to a socket.

       The shutdown() function may fail if:

       ENOBUFS
	      Insufficient resources were available in the system  to  perform
	      the operation.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       getsockopt(), pselect(), read(), recv(), recvfrom(), recvmsg(), send(),
       sendto(), setsockopt(), socket(), write()

       The Base Definitions volume of POSIX.1‐2008, <sys_socket.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),	The  Open  Group  Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
       cal and Electronics Engineers,  Inc  and	 The  Open  Group.   (This  is
       POSIX.1-2008  with  the	2013  Technical Corrigendum 1 applied.) In the
       event of any discrepancy between this version and the original IEEE and
       The  Open Group Standard, the original IEEE and The Open Group Standard
       is the referee document. The original Standard can be  obtained	online
       at http://www.unix.org/online.html .

       Any  typographical  or  formatting  errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files  to  man page format. To report such errors, see https://www.ker‐
       nel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group		     2013			  SHUTDOWN(3P)
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