#!/bin/sh
# -*- mode: shell-script; coding: utf-8 -*-
#
# ipofif
#
# Script to get the IP address(es) of an interface.
#
# Copyright (C) 2010-2012 Elmar Hoffmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#

set -e

if [ $# -ne 1 ]; then
    echo "Usage: $(basename -- "$0") INTERFACE"
    exit 2
fi

iface="${1}"

ip addr list dev "${iface}" | sed --quiet --expression='s,^[[:space:]]\+inet \([^/]\+\)/[[:digit:]]\+ .*$,\1,p'
