#!/bin/sh

output=$(mktemp)
trap "rm -f $output" EXIT

keepalived -t -f output/"$1"/keepalived.conf 2> $output
ret=$?

>&2 cat $output
case $ret in
    4)
        # If we get this error, this is harmless. It's the last check
        # keepalived does.
        ! grep -q "^Non-existent interface specified" $output || exit 0
        exit 4
        ;;
esac
exit $ret