#!/bin/bash

# Copyright (c) Michael Still 2001, released under the terms of the GNU GPL

start=`ls unclassified | wc -l | tr -d " "`

for host in `ls unclassified | sed 's/unclassified\///'`
do
  echo -n "$host "

  # It would seem we can't use waitsecs (-w) to terminate ping, because this simply doesn't work!
  (sleep 5; killall ping 2> /dev/null) &

  if [ `ping -c 1 $host | grep "0% packet loss" | wc -l | tr -d " "` -gt 0 ]
  then
    echo -n "[ping ok] "

    routepath=routes
    lost=no

    # Reduce the number of hops for a traceroute, on the assumption that things within the ISE LAN
    # can't be too far away. Otherwise a timeout on a 30 hop traceroute to a not responing machine
    # takes _ages_
    for routeline in `/usr/sbin/traceroute -n -m 5 $host 2> /dev/null | tr " " "~" | tr -s "~"`
    do
      routehost=`echo $routeline | cut -f 3 -d "~"`
      echo -n "($routehost) "

      if [ "$routehost" = '*' ]
      then
        if [ $lost = "no" ]
        then
          routehost=tracelost
          echo -n "<trace lost> "
          lost="$routepath/tracelost"
        else
          echo -n "<trace still lost> "
          routehost=""
        fi
      fi

      routepath="$routepath/$routehost"
      mkdir -p $routepath
    done

    if [ $lost = "no" ]
    then
      mv unclassified/$host $routepath/$host-info
    else
      cp unclassified/$host $lost/$host-info
    fi

    echo -n " "
  else
    echo -n "[ping failed] "
  fi
done

echo "Traced" $(( `ls unclassified | wc -l | tr -d " "` - $start )) "hosts"