SHUTDOWN(3P) | POSIX Programmer's Manual | SHUTDOWN(3P) |
PROLOG
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
shutdown - shut down socket send and receive operationsSYNOPSIS
#include <sys/socket.h>DESCRIPTION
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
Upon successful completion, shutdown() shall return 0; otherwise, -1 shall be returned and errno set to indicate the error.ERRORS
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
None.APPLICATION USAGE
None.RATIONALE
None.FUTURE DIRECTIONS
None.SEE ALSO
getsockopt(), read(), recv(), recvfrom(), recvmsg(), select(), send(), sendto(), setsockopt(), socket(), write(), the Base Definitions volume of IEEE Std 1003.1-2001, <sys/socket.h>COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. 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.opengroup.org/unix/online.html .2003 | IEEE/The Open Group |