#!/bin/bash

doPing()
{
  DEST=$1

  ping -c 1 $DEST
}

pingWait()
{
  DEST=$1
  TIME=$2

  doPing $DEST &

  PID=$!
  sleep $TIME

  # Return false if the program hasn't terminated after the given time.
  if ps $PID &> /dev/null; then
    kill $PID &> /dev/null
    return 1
  fi

  # If it returned, see if it was successful.
  wait $PID
  return $?
}

if [[ $# -ne 2 ]]; then
  echo "  Usage: $0 <destination> <timeToWait>" 1>&2
  exit 1
fi

# pingWait DEST TIME
pingWait $1 $2