wakeup

#!/bin/ksh
#
# wakeup - wakes up a host by sending Wake-On-Lan magic packet with ether-wake
#
# Copyright (C) 2012 Orion Poplawski <orion@cora.nwra.com>
#
# 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 3 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, see <http://www.gnu.org/licenses/>.

# root generally runs this via gewake and we don't want to wait
[ `id -u` -eq 0 ] && QUIET=-q

# The list of ethernet macaddrs for the hosts
etherhostlist=/nfs/local/etc/wakeup

# Parse options
while getopts "q" opt
do
    case $opt in
        q) QUIET=-q;;
       \?)
           echo "Use: wakeup [-q] hostname" >&2
           echo " -q quiet - don't wait for the host to come up" >&2
           exit 1
           ;;
    esac
done
shift $(($OPTIND - 1))
host=$1

# Declare the associative array for the ethernet macaddrs
typeset -A ether

# Source the list of ethernet addresses
. ${etherhostlist}

# Set the ethernet address
macaddr=${ether[$host]}

# Quit if unknown
if [ -z "$macaddr" ]
then
 echo "ERROR: Unknown host $host, add to $wakeuphosts!" 1>&2; exit 1
fi

if [ `id -u` -ne 0 ]
then
   sudo=sudo
fi

#Send it out all interfaces to be safe
/sbin/ip link | awk -F: '/BROADCAST/ { print $2 }' | while read if x
do
   $sudo /sbin/ether-wake -i $if $macaddr 2>&1 | grep -vF 'sendto: Network is down'
done

#Non-root, wait for the machine to come up
if [ -z "$QUIET" ]
then
   echo -n "Waiting for $host to come up."
   i=0
   while [ $i -lt 60 ]
   do
      # Try to connect to ssh to see if up
      perl -e "use IO::Socket; IO::Socket::INET->new(Proto=>'tcp',PeerAddr=>$host,PeerPort=>'ssh') or exit(1);" && {
         echo " UP!"
         exit
      }
      echo -n "."
      let i++
      sleep 1
   done
   echo -e " FAILED!\nGave up waiting for $host to come up."
fi