route off vpn

etc_ppp_ip-ip

#!/usr/bin/env bash

exit 0

# refs
# http://archives.aidanfindlater.com/blog/2010/02/03/use-vpn-for-specific-sites-on-mac-os-x/
# http://superuser.com/questions/424862/how-do-i-make-certain-web-addresses-use-a-specific-network-adapter-on-mac-os-x
# http://superuser.com/questions/4904/how-to-selectively-route-network-traffic-through-vpn-on-mac-os-x-leopard

# Script which handles the routing issues as necessary for pppd,
# including for PPTP tunnels. Save this script as /etc/ppp/ip-up
# and make sure it is executable.
#
# When the ppp link comes up, this script is called with the following
# parameters
ifname=$1        # the interface name used by pppd (e.g. ppp3)
ttyname=$2       # the tty device name
speed=$3         # the tty device speed
localip=$4       # the local IP address for the interface
remoteip=$5      # the remote IP address
ipparam=$6       # the current IP address before connecting to the VPN

domains_file=~/foo.txt
dns="8.8.8.8"

domains_static="www.foo.com"
domains_dynamic="$(grep -o -e '[^/]\+.com' ${domains_file}) | sort | uniq"
domains="$(ls /etc/resolver) ${domains_static} ${domains_dynamic}"

echo "#!/usr/bin/env bash" > /etc/ppp/ip-down

for domain in ${domains}; do
    hosts=$(dig +short ${domain} @${dns})
    for host in ${hosts}; do
        /sbin/route add -host ${host} -interface en1
        echo "/sbin/route delete -host ${host} -interface en1" >> /etc/ppp/ip-down
    done
done

echo "echo \"#!/usr/bin/env bash\" > /etc/ppp/ip-down" >> /etc/ppp/ip-down