#!/usr/bin/python
#    ldd - DNS implementation in Python
#    Copyright (C) 2006 Fredrik Tolf <fredrik@dolda2000.com>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA


import socket
import sys
import getopt
import time

from ldd import resolver

nameserver = (socket.AF_INET, "198.41.0.4", 53)
rtype = "a"
lrec = True
srec = False
verbose = False
opts, args = getopt.getopt(sys.argv[1:], "vrRs:t:p:")

for o, a in opts:
    if o == "-s":
        nameserver = (socket.AF_INET, a, 53)
    if o == "-t":
        if a == "any":
            rtype = 255
        else:
            rtype = a
    if o == "-p":
        nameserver = nameserver[0:2] + (int(a),)
    if o == "-r":
        lrec = False
    if o == "-R":
        srec = True
    if o == "-v":
        verbose = True

if len(args) < 1:
    print "No target given"
    sys.exit(1)

res = resolver.resolver(nameserver, lrec, srec, verbose = verbose)
try:
    rsp = res.squery(args[0], rtype)
except resolver.error, inst:
    print "error: " + str(inst)
except KeyboardInterrupt:
    sys.exit(1)
else:
    print str(rsp)