1#!/bin/bash
 2# SPDX-License-Identifier: GPL-2.0
 3#
 4# A simple program for generating traffic for the toeplitz test.
 5#
 6# This program sends packets periodically for, conservatively, 20 seconds. The
 7# intent is for the calling program to kill this program once it is no longer
 8# needed, rather than waiting for the 20 second expiration.
 9
10send_traffic() {
11	expiration=$((SECONDS+20))
12	while [[ "${SECONDS}" -lt "${expiration}" ]]
13	do
14		if [[ "${PROTO}" == "-u" ]]; then
15			echo "msg $i" | nc "${IPVER}" -u -w 0 "${ADDR}" "${PORT}"
16		else
17			echo "msg $i" | nc "${IPVER}" -w 0 "${ADDR}" "${PORT}"
18		fi
19		sleep 0.001
20	done
21}
22
23PROTO=$1
24IPVER=$2
25ADDR=$3
26PORT=$4
27
28send_traffic