#!/bin/bash
set -e

#
# brutal network setup & ssh pubkeys
#

[[ -z $4 ]] && echo usage: ${0##*/} host-cidr gateway hostname pubkeyfile && exit 1
cidr=$1
gw=$2
guest=$3
pubkeyfile=$4

[[ ! -d lala/etc/rc.d/ ]] && echo lala/etc/rc.d/ not found && exit 1
[[ ! -d lala/root/ ]] && echo lala/root/ not found && exit 1

if [[ ! -f lala/etc/rc.d/rc.inet1.dist ]]; then
	mv -i lala/etc/rc.d/rc.inet1 lala/etc/rc.d/rc.inet1.dist
	chmod -x lala/etc/rc.d/rc.inet1.dist
fi

echo -n brutal network setup...
cat > lala/etc/rc.d/rc.inet1 <<EOF && echo done
#!/bin/bash

echo rc.inet1 PATH is \$PATH

echo -n lo ...
ifconfig lo up && echo done

echo -n eth0 ...
ifconfig eth0 $cidr up && echo done

echo -n default route ...
route add default gw $gw && echo done
EOF
chmod +x lala/etc/rc.d/rc.inet1

echo -n hostname $guest ...
echo $guest > lala/etc/HOSTNAME && echo done

[[ ! -f lala/etc/hosts.dist ]] && mv -i lala/etc/hosts lala/etc/hosts.dist
cat > lala/etc/hosts <<EOF
127.0.0.1       localhost
::1             localhost
${ip%/*}	$guest
EOF

echo -n static name resolution ...
echo nameserver $gw > lala/etc/resolv.conf && echo done

echo -n pushing pubkeys $pubkeyfile ...
mkdir -p lala/root/.ssh/
cat $pubkeyfile > lala/root/.ssh/authorized_keys && echo done
chmod 700 lala/root/.ssh/
chmod 600 lala/root/.ssh/authorized_keys

echo all done
echo