#!/bin/bash
echo "DO_RSH version 09192k3-a(rsync)"
echo "This version is for use with XINETD only!"
echo "If you don't have XINETD (older Debian), you will have to modify "
echo "/etc/inetd.d and related files manually."

echo "Stage 0:  Prep."

function EXIT {
echo "ABEND.  Exiting due to error condition or user selection."
echo "Error level will be set to $1"
exit $1
}



function CHECKHOST.UNTIES {
cat /etc/hosts.unties
echo '------------------------------------'
echo 'Is this correct?'
/usr/bin/ask
if [ $? -ne 0 ]; then
	echo "No change was made."
	rm /etc/hosts.unties
	echo "Do you wish to exit now?"
	/usr/bin/ask
	if [ $? -eq 0 ]; then
		echo "Exiting while aborting edit of $1.  Exit code is 4."
		EXIT 4
	fi
else
	echo Update complete.
	cp /etc/hosts.unties /etc/$1
fi
}





if [ -f /usr/bin/ask ]; then
	echo "Ask is already installed."
else
	cp /root/bin/ask /usr/bin/ask
fi

echo "Stage 1.  Making some backups."

DATE=`date +%m%d%y.%H%M:%S`
for i in deny allow equiv; do
	cp /etc/hosts.$i /etc/hosts.$i-$DATE
done
cp /etc/securetty /etc/securetty-$DATE




echo "Stage 2a.  Modifying HOSTS.ALLOW."
cat /etc/hosts.allow >/etc/hosts.unties
echo 'in.rshd : 192.168.1.' >>/etc/hosts.unties
echo 'in.rlogind : 192.168.1.' >>/etc/hosts.unties
echo 'portmap : 192.168.1.' >>/etc/hosts.unties
echo 'sshd : 192.168.1.' >>/etc/hosts.unties
echo 'rsync : 192.168.1.' >>/etc/hosts.unties
CHECKHOST.UNTIES hosts.allow


echo "Stage 2b.  Modifying HOSTS.DENY."
cat /etc/hosts.deny >/etc/hosts.unties
echo 'ALL : ALL '>>/etc/hosts.unties
CHECKHOST.UNTIES hosts.deny


echo "Stage 2c.  Making HOSTS.EQUIV."
cat /usr/bin/do_ssh_hosts > /etc/hosts.unties
CHECKHOST.UNTIES hosts.equiv

echo "Stage 3.  Modifying /ETC/SECURETTY."
cp /etc/securetty /etc/hosts.unties
echo "rsh" >>/etc/hosts.unties
echo "rlogin" >>/etc/hosts.unties
CHECKHOST.UNTIES securetty

echo "Stage 4.  Turning on the rsh and rlogin services."
echo "NOTE:  The following two commands will produce ERRORS."
echo "on non-XINETD-based systems such as Debian Woody."

chkconfig --level 345 rsh on
chkconfig --level 345 rlogin on


echo "Stage 5.  Making it work for root."
echo "====================================="
echo "| Are you sure you want to do this? |"
echo "====================================="
/usr/bin/ask
if [ $? -ne 0 ]; then
	echo "RSH is NOT enabled for root.  Exiting with code 2."
	EXIT 2
fi
	
scp /usr/bin/do_ssh_hosts /root/.rhosts
echo ".RHOSTS added."