#!/bin/bash
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#
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# This script makes sure that 127.0.0.x is routable. On Darwin, there
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# is a bug that it isn't routable and this causes errors.
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#
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# Fail if any commands fail (unchecked), namely sudo and ifconfig.
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set -e
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# Check if loopback is setup
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if ping -c 1 -W 10 127.0.0.2 > /dev/null 2>&1
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then
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exit
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fi
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# If we're not on OS X, then error
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case $OSTYPE in
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darwin*)
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;;
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*)
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echo "Can't setup interfaces on non-Mac. Error!"
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exit 1
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;;
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esac
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# Setup loopback
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echo "Using sudo to setup lo0 interface aliases for testing."
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sudo -v
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for ((i=2;i<256;i++))
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do
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sudo -n ifconfig lo0 alias 127.0.0.$i up
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done
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