--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/service/tomatoWifi/dhcpparse.py	Sat Apr 06 17:08:19 2013 -0700
@@ -0,0 +1,23 @@
+def addDhcpData(rows):
+    """given dicts with 'mac', add other data from the dhcp cache"""
+    currentLease = None
+    for line in open('/var/lib/dhcp/dhcpd.leases'):
+        if line.startswith('lease '):
+            currentLease = {'ip': line.split()[1]}
+        elif line.startswith('  hardware ethernet '):
+            currentLease['mac'] = line.split()[2].strip(';').upper()
+        elif line.startswith('  client-hostname'):
+            currentLease['clientHostname'] = line.split(None, 2)[1].strip('";')
+        elif line.startswith('  binding state'):
+            currentLease['bindingState'] = line.split()[2].strip(';')
+        elif line.startswith('}'):
+            if currentLease.get('bindingState') == 'active':
+                # there seem to be a lot of 'active' blocks
+                # for the same ip addr and mac. I haven't
+                # looked into whether they hold different
+                # lease terms or what
+                for r in rows:
+                    if r['mac'] == currentLease['mac']:
+                        r.update(currentLease)
+                        
+