shutdown(2) [centos man page]

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
       receptions 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, respectively, 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 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2012-09-06							       SHUTDOWN(2)

Check Out this Related Man Page

shutdown(3SOCKET)														 shutdown(3SOCKET)

NAME

       shutdown - shut down part of a full-duplex connection

SYNOPSIS

       cc [ flag... ] file... -lsocket -lnsl [ library... ]
       #include <sys/socket.h>

       int shutdown(int s, int how);

       The shutdown() call shuts down all or part of a full-duplex connection on the socket associated with s. If how is SHUT_RD, further receives
       are disallowed.	If how is SHUT_WR, further sends are disallowed. If how is SHUT_RDWR, further sends and receives are disallowed.

       The how values should be defined constants.

       0 is returned if the call succeeds.

       -1 is returned if the call fails.

       The call succeeds unless one of the following conditions exists:

       EBADF		       The s value is not a valid file descriptor.

       ENOMEM		       Insufficient user memory is available for the operation to complete.

       ENOSR		       Insufficient STREAMS resources are available for the operation to complete.

       ENOTCONN 	       The specified socket is not connected.

       ENOTSOCK 	       The s value is not a socket.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

       connect(3SOCKET), socket(3SOCKET), socket.h(3HEAD), attributes(5)

								    31 Jan 2005 						 shutdown(3SOCKET)

Linux and UNIX Man Pages

shutdown(2) [centos man page]

Check Out this Related Man Page