1.\" 2.\" Copyright (c) 1994 James A. Jegers 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. The name of the author may not be used to endorse or promote products 11.\" derived from this software without specific prior written permission 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23.\" 24.\" $FreeBSD: src/usr.sbin/spray/spray.8,v 1.5.2.5 2003/03/11 22:31:33 trhodes Exp $ 25.\" $DragonFly: src/usr.sbin/spray/spray.8,v 1.2 2003/06/17 04:30:03 dillon Exp $ 26.\" 27.Dd July 10, 1995 28.Dt SPRAY 8 29.Os 30.Sh NAME 31.Nm spray 32.Nd send many packets to host 33.Sh SYNOPSIS 34.Nm 35.Op Fl c Ar count 36.Op Fl d Ar delay 37.Op Fl l Ar length 38.Ar host 39.Sh DESCRIPTION 40The 41.Nm 42utility sends multiple RPC packets to 43.Ar host 44and records how many of them were correctly received and how long it took. 45.Pp 46The options are as follows: 47.Bl -tag -width indent 48.It Fl c Ar count 49Send 50.Ar count 51packets. 52.It Fl d Ar delay 53Pause 54.Ar delay 55microseconds between sending each packet. 56.It Fl l Ar length 57Set the length of the packet that holds the RPC call message to 58.Ar length 59bytes. 60Not all values of 61.Ar length 62are possible because RPC data is encoded using XDR. 63The 64.Nm 65utility rounds up to the nearest possible value. 66.El 67.Pp 68The 69.Nm 70utility is intended for use in network testing, measurement, and management. 71This command 72.Em "can be very hard on a network and should be used with caution" . 73.Sh SEE ALSO 74.Xr netstat 1 , 75.Xr ifconfig 8 , 76.Xr ping 8 , 77.Xr rpc.sprayd 8 78