#!/usr/bin/env python

# Monitor Interfaces, send hb msg when add changes
import time, os, sys

SLEEP=60
SRV="colo2.wapanafa.org"
DBG=0
HBC="/home/andreas/bin/hbc"

IFS=[]
f=os.popen('/sbin/ifconfig -a 2>/dev/null', 'r')
for l in f.readlines():
	if len(l) > 1 and not l[0]  in [' ','\t']:
		r=l.split()
		if DBG: print r
		if r[0][-1] == ':':
			r[0]=r[0][:-1]
		if r[0][:2] == 'lo':
			continue
		IFS.append(r[0])
if DBG: print IFS
addrs={}
for I in IFS:
	addrs[I]=""

while 1:

	for I in IFS:
		f=os.popen('/sbin/ifconfig %s 2>/dev/null' % I, 'r')
		for l in f.readlines():
			r=l.split()
			if DBG > 1: print  "x2", r
			if len(r) == 0 or r[0] != 'inet':
				continue
			if r[1].find('addr:') == 0:
				iaddr=r[1][5:]
			else:
				iaddr=r[1]
			if iaddr != addrs[I]:
				msg='%s -m "ifadd %s %s" %s' % (HBC, I, iaddr, SRV)
				if DBG: print msg
				else: os.system(msg)
				addrs[I]=iaddr
		f.close()

	time.sleep(SLEEP)