PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

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

PROLOG         top

       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         top

       shutdown — shut down socket send and receive operations

SYNOPSIS         top

       #include <sys/socket.h>

       int shutdown(int socket, int how);

DESCRIPTION         top

       The shutdown() function shall cause all or part of a full-duplex
       connection 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
       operations on a socket, depending on the value of the how argument.

RETURN VALUE         top

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

ERRORS         top

       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         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       getsockopt(3p), pselect(3p), read(3p), recv(3p), recvfrom(3p),
       recvmsg(3p), send(3p), sendto(3p), setsockopt(3p), socket(3p),
       write(3p)

       The Base Definitions volume of POSIX.1‐2008, sys_socket.h(0p)

COPYRIGHT         top

       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 Electrical 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.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                 2013                        SHUTDOWN(3P)

Pages that refer to this page: sys_socket.h(0p)connect(3p)recv(3p)recvfrom(3p)recvmsg(3p)send(3p)sendmsg(3p)sendto(3p)socket(3p)