#!/usr/bin/env python2.3

import socket
import commands

SELF_PORT = 10003

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(('', SELF_PORT))
s.setblocking(1)

def getstatus():
    if commands.getoutput('/sbin/ifconfig ppp0').find('inet addr:') > -1:
        return "1"
    if commands.getoutput('ps ax | grep ppp').find('dsl-provider') > -1:
        return "0"
    return "-1"

while 1:
    (data, client) = s.recvfrom(30)
    s.sendto(getstatus(), client)