Contrib script that generates a BIND c.f.ip6.arpa zone

If you ever wanted, for whatever reason, to generate a BIND reverse DNS lookup zone based on nodedb, then this script is somewhere to start. It isn't particularly robust, lies a bit by default in the NS/SOA records and can probably be easily defeated by unusual names or characters in the nodedb file, but maybe it will be useful to someone.

bind-generate-ptr.py

@@ -0,0 +1,30 @@
+#!/usr/bin/python
+
+import sys
+# https://raw.githubusercontent.com/google/ipaddr-py/master/ipaddr.py
+import ipaddr
+import time
+
+# Point this to the "nodes" file from nodedb
+
+with open("nodes") as fd:
+    content = fd.readlines()
+
+print "$TTL 3600"
+print "$ORIGIN c.f.ip6.arpa."
+print ""
+
+print "@\tIN SOA\th.ns.net. hostmaster.h.ns.net. (\n" + \
+          "\t\t" + str(int(time.time())) + "    ; serial\n" + \
+          "\t\t1h               ; slave refresh interval\n" + \
+          "\t\t15m              ; slave retry interval\n" + \
+          "\t\t1w               ; slave copy expire time\n" + \
+          "\t\t1h               ; NXDOMAIN cache time\n" + \
+          "\t)"
+print "\tIN NS\th.ns.net"
+print "h.ns.net\tIN AAAA\t::1"
+for line in content:
+    tokens = line.strip().split(" ")
+    if not tokens[0] == '' and not tokens[1] == '':
+        ip = ipaddr.IPv6Network(tokens[0]).exploded.split("/")[0]
+        print ".".join(ip[2:][::-1].replace(":", "")) + "\tIN\tPTR\t" + tokens[1].split("/")[0] + "."