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      1 #!/usr/bin/python
      2 # vim:fileencoding=utf-8
      3 '''
      4  ns-lookup.py: Example shows how to lookup for NS records 
      5 
      6  Authors: Zdenek Vasicek (vasicek AT fit.vutbr.cz)
      7           Marek Vavrusa  (xvavru00 AT stud.fit.vutbr.cz)
      8 
      9  Copyright (c) 2008. All rights reserved.
     10 
     11  This software is open source.
     12  
     13  Redistribution and use in source and binary forms, with or without
     14  modification, are permitted provided that the following conditions
     15  are met:
     16  
     17  Redistributions of source code must retain the above copyright notice,
     18  this list of conditions and the following disclaimer.
     19  
     20  Redistributions in binary form must reproduce the above copyright notice,
     21  this list of conditions and the following disclaimer in the documentation
     22  and/or other materials provided with the distribution.
     23  
     24  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     25  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     26  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     27  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
     28  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     29  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     30  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     31  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     32  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     33  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     34  POSSIBILITY OF SUCH DAMAGE.
     35 '''
     36 from __future__ import print_function
     37 import unbound
     38 
     39 ctx = unbound.ub_ctx()
     40 ctx.resolvconf("/etc/resolv.conf")
     41 
     42 status, result = ctx.resolve("vutbr.cz", unbound.RR_TYPE_NS, unbound.RR_CLASS_IN)
     43 if status == 0 and result.havedata:
     44     print("Result:")
     45     print("      raw data:", result.data)
     46     for k in sorted(result.data.domain_list):
     47         print("      host: %s" % k)
     48 
     49