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#! /bin/bash
### BEGIN INIT INFO
# Provides: telnetd
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start:
# Default-Stop:
# Short-Description: Busybox telnet daemon
### END INIT INFO
declare progname=${0##*/}
declare action=$1; shift
port=$1; shift
addr=$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 $pid
return
fi
done
false
}
start_telnetd ()
{
if [ -n "$addr" ]
then $bb telnetd -p $port -b $addr
else $bb telnetd -p $port
fi
}
start ()
{
local -i pid=$( running_pid )
[ $pid -ne 0 ] && return
start_telnetd
}
stop ()
{
local -i pid=$( running_pid )
if [ $pid -ne 0 ]
then kill $pid
else return 0
fi
}
restart()
{
local -i pid=$( running_pid )
if [ $pid -ne 0 ]
then kill $pid
sleep 1
fi
start_telnetd
}
status ()
{
local -i pid=$( running_pid )
if [ $pid -ne 0 ]
then echo running
return
else
echo not running
false
fi
}
case "$action" in
start) start;;
stop) stop;;
restart) restart;;
status) status;;
*) echo "Usage: $progname {start|stop|restart|status}"
exit 1
esac
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