From c4a856d3a04ac9148e6198f5257bfd23e78ce53e Mon Sep 17 00:00:00 2001 From: Mike Pritchard Date: Sun, 7 Apr 1996 10:04:49 +0000 Subject: [PATCH] Add a zero(4) man page to describe /dev/zero. Update null(4) to xref this new man page. --- share/man/man4/Makefile | 3 ++- share/man/man4/null.4 | 2 ++ share/man/man4/zero.4 | 55 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 59 insertions(+), 1 deletion(-) create mode 100644 share/man/man4/zero.4 diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile index c15d1d6df90d..cfb1fac43a2e 100644 --- a/share/man/man4/Makefile +++ b/share/man/man4/Makefile @@ -5,7 +5,8 @@ MAN4= bpf.4 cd.4 ch.4 clnp.4 cltp.4 ddb.4 drum.4 esis.4 fd.4 fpa.4 \ lkm.4 lo.4 netintro.4 ns.4 \ nsip.4 null.4 pt.4 pty.4 route.4 \ scsi.4 sd.4 snp.4 spp.4 st.4 su.4 tcp.4 \ - ttcp.4 termios.4 tp.4 tty.4 udp.4 uk.4 update.4 unix.4 worm.4 yp.4 + ttcp.4 termios.4 tp.4 tty.4 udp.4 uk.4 update.4 unix.4 worm.4 yp.4 \ + zero.4 MLINKS+=fd.4 stderr.4 fd.4 stdin.4 fd.4 stdout.4 MLINKS+=netintro.4 networking.4 MLINKS+=ipfirewall.4 ipacct.4 ipfirewall.4 ipfw.4 ipfirewall.4 ipaccounting.4 diff --git a/share/man/man4/null.4 b/share/man/man4/null.4 index 583e1099ad14..5c7bf245454f 100644 --- a/share/man/man4/null.4 +++ b/share/man/man4/null.4 @@ -49,6 +49,8 @@ device is always zero. .Bl -tag -width /dev/null .It Pa /dev/null .El +.Sh SEE ALSO +.Xr zero 4 .Sh HISTORY A .Nm diff --git a/share/man/man4/zero.4 b/share/man/man4/zero.4 new file mode 100644 index 000000000000..78b3423a7855 --- /dev/null +++ b/share/man/man4/zero.4 @@ -0,0 +1,55 @@ +.\" Copyright (c) 1996 +.\" Mike Pritchard . All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by Mike Pritchard and +.\" contributors. +.\" 4. Neither the name of the author nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.Dd April 7, 1996 +.Dt ZERO 4 +.Os +.Sh NAME +.Nm zero +.Nd the zero device +.Sh DESCRIPTION +The +.Nm +device accepts and reads data as any ordinary (and willing) +file, +but throws away any data written to it, and returns an endless +supply of null bytes when read. +.Sh FILES +.Bl -tag -width /dev/zero +.It Pa /dev/zero +.El +.Sh SEE ALSO +.Xr null 4 +.Sh HISTORY +A +.Nm +device appeared in +.Bx 4.4 .