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#! /bin/bash
declare progname=${0##*/}
declare action=$1; shift
port=$1; shift
: ${port:=23}
: ${bb:=/bin/busybox}
test -x $bb || exit 0
running_pid ()
{
pidof $bb | while read pid ; do
f=$(tr '\000' '\t' < /proc/$pid/cmdline 2>/dev/null | cut -f2)
if [ "$f" == telnetd ] ; then
echo $pid
return
fi
done
false
}
start ()
{
local -i pid=$( running_pid )
[ $pid -ne 0 ] && return
$bb telnetd -p $port
}
stop ()
{
local -i pid=$( running_pid )
[ $pid -ne 0 ] && kill $pid
}
status ()
{
pidof $bb | while read pid ; do
f=$(tr '\000' '\t' < /proc/$pid/cmdline | cut -f2)
if [ $f == telnetd ] ; then
echo running
return
fi
done
echo not running
false
}
case "$action" in
start) start;;
stop) stop;;
restart) stop; sleep 1; start;;
status) status;;
*) echo "Usage: $progname {start|stop|restart|status}"
exit 1
esac
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