shutdown.2

<B>Digital的Unix操作系统VAX 4.2源码</B>

.\" SCCSID: @(#)shutdown.2	8.1	9/11/90
.TH shutdown 2
.SH Name
shutdown \- shut down full-duplex connection
.SH Syntax
.nf
.ft B
shutdown(s, how)
int s, how;
.fi
.SH Description
.NXR "shutdown system call"
.NXR "socket" "shutting down full-duplex connection"
The
.PN shutdown
call causes all or part of a full-duplex connection on
the socket associated with
.I s
to be shut down.
If \fIhow\fP is 0, further receives are disallowed.
If \fIhow\fP is 1, further sends are disallowed.
If \fIhow\fP is 2, further sends and receives are disallowed.
.SH Return Values
A zero (0) is returned if the call succeeds, \-1 if it fails.
.SH Diagnostics
The call succeeds unless:
.TP 15
[EBADF]
The
.I s
argument is not a valid descriptor.
.TP 15
[ENOTSOCK]
The 
.I s
argument is a file, not a socket.
.TP 15
[ENOTCONN]
The specified socket is not connected.
.SH See Also
connect(2), socket(2)