shutdown (original) (raw)
The Open Group Base Specifications Issue 6
IEEE Std 1003.1, 2004 Edition
Copyright © 2001-2004 The IEEE and The Open Group, All Rights reserved.
A newer edition of this document exists here
NAME
shutdown - shut down socket send and receive operations
SYNOPSIS
`#include <sys/socket.h>
int shutdown(int
socket, int how);
`
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>
CHANGE HISTORY
First released in Issue 6. Derived from the XNS, Issue 5.2 specification.
End of informative text.
UNIX ® is a registered Trademark of The Open Group.
POSIX ® is a registered Trademark of The IEEE.
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