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SHUTDOWN(2)		   Linux Programmer's Manual		   SHUTDOWN(2)

NAME
       shutdown	- shut down part of a full-duplex connection

SYNOPSIS
       #include	<sys/socket.h>

       int shutdown(int	sockfd,	int how);

DESCRIPTION
       The  shutdown()	call causes all	or part	of a full-duplex connection on
       the socket associated with sockfd to be shut down.  If how is  SHUT_RD,
       further	receptions  will  be  disallowed.   If how is SHUT_WR, further
       transmissions will be disallowed.  If how is SHUT_RDWR, further	recep-
       tions and transmissions will be disallowed.

RETURN VALUE
       On  success,  zero is returned.	On error, -1 is	returned, and errno is
       set appropriately.

ERRORS
       EBADF  sockfd is	not a valid descriptor.

       EINVAL An invalid value was specified in	how (but see BUGS).

       ENOTCONN
	      The specified socket is not connected.

       ENOTSOCK
	      sockfd is	a file,	not a socket.

CONFORMING TO
       POSIX.1-2001, 4.4BSD (the shutdown() function call  first  appeared  in
       4.2BSD).

NOTES
       The  constants  SHUT_RD,	SHUT_WR, SHUT_RDWR have	the value 0, 1,	2, re-
       spectively, and are defined in _sys/socket.h_ since glibc-2.1.91.

BUGS
       As currently implemented, checks	for the	validity of how	 are  done  in
       domain-specific	code,  and not all domains perform these checks.  Most
       notably,	UNIX domain sockets simply ignore  invalid  values;  this  may
       change in the future.

SEE ALSO
       connect(2), socket(2), socket(7)

COLOPHON
       This  page  is  part of release 3.74 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest	  version     of     this    page,    can    be	   found    at
       http://www.kernel.org/doc/man-pages/.

Linux				  2012-09-06			   SHUTDOWN(2)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | CONFORMING TO | NOTES | BUGS | SEE ALSO | COLOPHON

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