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.Dd July 10, 1995 25.Dt SPRAY 8 26.Os 27.Sh NAME 28.Nm spray 29.Nd send many packets to host 30.Sh SYNOPSIS 31.Nm 32.Op Fl c Ar count 33.Op Fl d Ar delay 34.Op Fl l Ar length 35.Ar host 36.Sh DESCRIPTION 37The 38.Nm 39utility sends multiple RPC packets to 40.Ar host 41and records how many of them were correctly received and how long it took. 42.Pp 43The options are as follows: 44.Bl -tag -width indent 45.It Fl c Ar count 46Send 47.Ar count 48packets. 49.It Fl d Ar delay 50Pause 51.Ar delay 52microseconds between sending each packet. 53.It Fl l Ar length 54Set the length of the packet that holds the RPC call message to 55.Ar length 56bytes. 57Not all values of 58.Ar length 59are possible because RPC data is encoded using XDR. 60The 61.Nm 62utility rounds up to the nearest possible value. 63.El 64.Pp 65The 66.Nm 67utility is intended for use in network testing, measurement, and management. 68This command 69.Em "can be very hard on a network and should be used with caution" . 70.Sh SEE ALSO 71.Xr netstat 1 , 72.Xr ifconfig 8 , 73.Xr ping 8 , 74.Xr rpc.sprayd 8 75