echo "Updating /etc/shells"
cp /etc/shells /etc/shells.bak
(grep -v /usr/local/sbin/opnsense-shell /etc/shells.bak; \
    echo /usr/local/sbin/opnsense-shell) > /etc/shells
rm -f /etc/shells.bak
cp /etc/shells /etc/shells.bak
(grep -v /usr/local/sbin/opnsense-installer /etc/shells.bak; \
    echo /usr/local/sbin/opnsense-installer) > /etc/shells
rm -f /etc/shells.bak

echo "Registering root shell"
pw usermod -n root -s /usr/local/sbin/opnsense-shell

echo "Hooking into /etc/rc"
cp /etc/rc /etc/rc.bak
cat > /etc/rc <<EOF
#!/bin/sh
# OPNsense rc(8) hook was automatically installed:
if [ -f /usr/local/etc/rc ]; then exec /usr/local/etc/rc; fi
EOF
cat /etc/rc.bak >> /etc/rc
rm -f /etc/rc.bak

echo "Hooking into /etc/rc.shutdown"
cp /etc/rc.shutdown /etc/rc.shutdown.bak
cat > /etc/rc.shutdown <<EOF
#!/bin/sh
# OPNsense rc(8) hook was automatically installed:
if [ -f /usr/local/etc/rc.shutdown ]; then exec /usr/local/etc/rc.shutdown; fi
EOF
cat /etc/rc.shutdown.bak >> /etc/rc.shutdown
rm -f /etc/rc.shutdown.bak

/usr/local/etc/rc.d/configd start

/usr/local/etc/rc.syshook update