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openwrt-xburst/package/busybox/files/telnet
acinonyx d3c45eaee1 [package] busybox: Disable telnet if an SSH public key for root exists (#8760)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25317 3c298f89-4303-0410-b956-a3cf2f4a3e73
2011-02-02 18:50:50 +00:00

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#!/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
}