#!/usr/bin/env python

"""usage: %(program)s <smtpd-run-file

Assumes that the smtpd run file calls rblsmtpd.
"""

import sys, re, string, os

program = sys.argv[0]

def testone(s):
    # too bad older Pythons didn't have a DNS client library
    dig = os.popen("dig any 2.0.0.127."+s, "r")
    while 1:
        inl = dig.readline()
        if not inl: break
        fields = string.split(inl)
        if len(fields) > 2 and fields[2] in ['TXT', 'A']:
            dig.close()
            return "+OK "+s+" is working"
        if len(fields) > 3 and fields[3] in ['TXT', 'A']:
            dig.close()
            return "+OK "+s+" is working"
    dig.close()
    return "-ERR "+s+" is not working"

errors = 0
out = ''
words = string.split(string.join(sys.stdin.readlines(), ' '))
while words:
    if words[0] == '-r':
        ok = testone(re.sub(r':.*', '', words[1]))
        out = out + ok + "\n"
        if ok[0] == '-': errors = 1
    del words[0]

if errors:
    print out
    sys.exit(1)