1*e7776783SApple OSS Distributions.\" $NetBSD: null.4,v 1.3 1994/11/30 16:22:29 jtc Exp $ 2*e7776783SApple OSS Distributions.\" 3*e7776783SApple OSS Distributions.\" Copyright (c) 1991, 1993 4*e7776783SApple OSS Distributions.\" The Regents of the University of California. All rights reserved. 5*e7776783SApple OSS Distributions.\" 6*e7776783SApple OSS Distributions.\" Redistribution and use in source and binary forms, with or without 7*e7776783SApple OSS Distributions.\" modification, are permitted provided that the following conditions 8*e7776783SApple OSS Distributions.\" are met: 9*e7776783SApple OSS Distributions.\" 1. Redistributions of source code must retain the above copyright 10*e7776783SApple OSS Distributions.\" notice, this list of conditions and the following disclaimer. 11*e7776783SApple OSS Distributions.\" 2. Redistributions in binary form must reproduce the above copyright 12*e7776783SApple OSS Distributions.\" notice, this list of conditions and the following disclaimer in the 13*e7776783SApple OSS Distributions.\" documentation and/or other materials provided with the distribution. 14*e7776783SApple OSS Distributions.\" 3. All advertising materials mentioning features or use of this software 15*e7776783SApple OSS Distributions.\" must display the following acknowledgement: 16*e7776783SApple OSS Distributions.\" This product includes software developed by the University of 17*e7776783SApple OSS Distributions.\" California, Berkeley and its contributors. 18*e7776783SApple OSS Distributions.\" 4. Neither the name of the University nor the names of its contributors 19*e7776783SApple OSS Distributions.\" may be used to endorse or promote products derived from this software 20*e7776783SApple OSS Distributions.\" without specific prior written permission. 21*e7776783SApple OSS Distributions.\" 22*e7776783SApple OSS Distributions.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23*e7776783SApple OSS Distributions.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24*e7776783SApple OSS Distributions.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25*e7776783SApple OSS Distributions.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26*e7776783SApple OSS Distributions.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27*e7776783SApple OSS Distributions.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28*e7776783SApple OSS Distributions.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29*e7776783SApple OSS Distributions.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30*e7776783SApple OSS Distributions.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31*e7776783SApple OSS Distributions.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32*e7776783SApple OSS Distributions.\" SUCH DAMAGE. 33*e7776783SApple OSS Distributions.\" 34*e7776783SApple OSS Distributions.\" @(#)null.4 8.1 (Berkeley) 6/5/93 35*e7776783SApple OSS Distributions.\" 36*e7776783SApple OSS Distributions.Dd June 5, 1993 37*e7776783SApple OSS Distributions.Dt NULL 4 38*e7776783SApple OSS Distributions.Os 39*e7776783SApple OSS Distributions.Sh NAME 40*e7776783SApple OSS Distributions.Nm null 41*e7776783SApple OSS Distributions.Nd the null device 42*e7776783SApple OSS Distributions.Sh DESCRIPTION 43*e7776783SApple OSS DistributionsThe 44*e7776783SApple OSS Distributions.Nm 45*e7776783SApple OSS Distributionsdevice accepts and reads data as any ordinary (and willing) 46*e7776783SApple OSS Distributionsfile \- 47*e7776783SApple OSS Distributionsbut throws it away. The length of the 48*e7776783SApple OSS Distributions.Nm null 49*e7776783SApple OSS Distributionsdevice is always zero. 50*e7776783SApple OSS Distributions.Sh FILES 51*e7776783SApple OSS Distributions.Bl -tag -width /dev/null 52*e7776783SApple OSS Distributions.It Pa /dev/null 53*e7776783SApple OSS Distributions.El 54*e7776783SApple OSS Distributions.Sh HISTORY 55*e7776783SApple OSS DistributionsA 56*e7776783SApple OSS Distributions.Nm 57*e7776783SApple OSS Distributionsdevice appeared in 58*e7776783SApple OSS Distributions.At v7 . 59