#!/bin/bash
#
# Check if a network interface is up, fixing if needed.
#

# Parameters
BASENAME="`basename $0`"
IFACE="$1"

# Syntax check
if [ -z "$IFACE" ]; then
  echo "usage: $BASENAME <interface>"
  exit 1
fi

# Run
if ! LANG=C LC_ALL=C ifconfig $IFACE | grep -q "inet addr:"; then
  ifup --force $IFACE
fi