Section (2) shutdown
shutdown — shut down part of a full-duplex connection
shutdown() call causes
all or part of a full-duplex connection on the socket
sockfd to be shut down. If
SHUT_RD, further receptions will be
SHUT_WR, further transmissions
will be disallowed. If
SHUT_RDWR, further receptions and
transmissions will be disallowed.
On success, zero is returned. On error, −1 is
errno is set
sockfdis not a valid file descriptor.
An invalid value was specified in
how(but see BUGS).
The specified socket is not connected.
The file descriptor
sockfddoes not refer to a socket.
SHUT_RDWR have the value 0, 1, 2,
respectively, and are defined in
> since glibc-2.1.91.
Checks for the validity of
how are done in domain-specific
code, and before Linux 3.7 not all domains performed these
checks. Most notably, UNIX domain sockets simply ignored
invalid values. This problem was fixed for UNIX domain
sockets in Linux 3.7.
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and the latest version of this page, can be found at
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$Id: shutdown.2,v 220.127.116.11 1999/03/21 22:52:23 freitag Exp $
Modified Sat Jul 24 09:57:55 1993 by Rik Faith <faithcs.unc.edu>
Modified Tue Oct 22 22:04:51 1996 by Eric S. Raymond <esrthyrsus.com>
Modified 1998 by Andi Kleen