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GNU/Linux |
CentOS 5.3 |
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shutdown(3p) |
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shutdown − shut down socket send and receive operations
#include <sys/socket.h>
int shutdown(int socket, int how);
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:
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socket |
Specifies the file descriptor of the socket. | ||
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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.
Upon successful completion, shutdown() shall return 0; otherwise, -1 shall be returned and errno set to indicate the error.
The shutdown() function shall fail if:
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EBADF |
The socket argument is not a valid file descriptor. | ||
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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.
None.
None.
None.
None.
getsockopt() , read() , recv() , recvfrom() , recvmsg() , select() , send() , sendto() , setsockopt() , socket() , write() , the Base Definitions volume of IEEE Std 1003.1-2001, <sys/socket.h>
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 .
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shutdown(3p) | |