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30 .\" @(#)shutdown.2 8.1 (Berkeley) 6/4/93
37 .Nd shut down part of a full-duplex connection
43 .Fn shutdown "int s" "int how"
47 call causes all or part of a full-duplex connection on
48 the socket associated with
53 argument specifies which part of the connection will be shut down.
54 Permissible values are:
55 .Bl -tag -width SHUT_RDWRXX -offset indent
57 further receives will be disallowed.
59 further sends will be disallowed.
61 further sends and receives will be disallowed.
64 A 0 is returned if the call succeeds, \-1 if it fails.
66 The call succeeds unless:
70 is not a valid descriptor.
76 The specified socket is not connected.
79 is a file, not a socket.
87 function call appeared in
91 arguments used to be simply 0, 1, and 2, but now have named values