#!/bin/sh addr_family() { if [ "$1" != "${1#*[0-9].[0-9]}" ]; then echo "-4" elif [ "$1" != "${1#*:[0-9a-fA-F]}" ]; then echo "-6" else exit 1 fi } configure_addresses() { for i in $(ifquery -p address -i $INTERFACES_FILE $IFACE); do addrfam=$(addr_family $i) ${MOCK} ip $addrfam addr $1 $i dev $IFACE done } configure_gateways() { for i in $(ifquery -p gateway -i $INTERFACES_FILE $IFACE); do addrfam=$(addr_family $i) ${MOCK} ip $addrfam route $1 default via $i done } [ -z "$VERBOSE" ] || set -x case "$PHASE" in up) configure_addresses add configure_gateways add ;; down) configure_gateways del configure_addresses del ;; *) exit 0 ;; esac