openwrt/package/busybox/files/telnet

#!/bin/sh /etc/rc.common
# Copyright (C) 2006-2010 OpenWrt.org
START=50

has_root_pwd() {
	local pwd=$([ -f "$1" ] && cat "$1")
	      pwd="${pwd#*root:}"
	      pwd="${pwd%%:*}"

	test -n "${pwd#!}"
}

has_ssh_pubkey() {
	( test -x /usr/sbin/dropbear && grep -qs "^ssh-" /etc/dropbear/authorized_keys ) || \
	( test -x /usr/sbin/sshd && grep -qs "^ssh-" /root/.ssh/authorized_keys )
}

start() {
	if ( ! has_ssh_pubkey && \
	     ! has_root_pwd /etc/passwd && ! has_root_pwd /etc/shadow ) || \
	   ( [ ! -x /usr/sbin/dropbear ] && [ ! -x /usr/sbin/sshd ] );
	then
		telnetd -l /bin/login.sh
	fi
}

stop() {
	killall telnetd 2>/dev/null
}