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#!/bin/bash
#
# This script makes sure that 127.0.0.x is routable. On Darwin, there
# is a bug that it isn't routable and this causes errors.
#
action=${1:-up}
if [ "$action" = "up" ]
then
# Check if loopback is setup
ping -c 1 -W 10 127.0.0.2 > /dev/null 2>&1
if [ $? -eq 0 ]
then
exit
fi
fi
# If we're not on OS X, then error
case $OSTYPE in
darwin*)
;;
*)
echo "Can't setup interfaces on non-Mac. Error!"
exit 1
;;
esac
# Setup loopback
for j in 0 1 2
do
for ((i=2;i<256;i++))
do
if [ "$action" = "up" ]
then
sudo ifconfig lo0 alias 127.0.$j.$i up
else
sudo ifconfig lo0 127.0.$j.$i delete
fi
done
done
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