1 .\" Copyright (c) 1983, 1991 The Regents of the University of California.
2 .\" All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
12 .\" 3. All advertising materials mentioning features or use of this software
13 .\" must display the following acknowledgement:
14 .\" This product includes software developed by the University of
15 .\" California, Berkeley and its contributors.
16 .\" 4. Neither the name of the University nor the names of its contributors
17 .\" may be used to endorse or promote products derived from this software
18 .\" without specific prior written permission.
20 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 .\" $Id: shutdown.2,v 1.1.1.1 1999/03/21 22:52:23 freitag Exp $
34 .\" Modified Sat Jul 24 09:57:55 1993 by Rik Faith <faith@cs.unc.edu>
35 .\" Modified Tue Oct 22 22:04:51 1996 by Eric S. Raymond <esr@thyrsus.com>
36 .\" Modified 1998 by Andi Kleen
38 .TH SHUTDOWN 2 1993-07-24 "Linux" "Linux Programmer's Manual"
40 shutdown \- shut down part of a full-duplex connection
42 .B #include <sys/socket.h>
44 .BI "int shutdown(int " s ", int " how );
48 call causes all or part of a full-duplex connection on the socket
56 further receptions will be disallowed.
61 further transmissions will be disallowed.
66 further receptions and transmissions will be disallowed.
68 On success, zero is returned.
69 On error, \-1 is returned, and
76 is not a valid descriptor.
79 The specified socket is not connected.
83 is a file, not a socket.
85 The constants SHUT_RD, SHUT_WR, SHUT_RDWR have the value 0, 1, 2,
86 respectively, and are defined in
90 POSIX.1-2001, 4.4BSD (the
92 function call first appeared in 4.2BSD).