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/* User-level DNS functions                                    -*- mfl -*-
   Copyright (C) 2007-2019 Sergey Poznyakoff

   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 3, 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, see <http://www.gnu.org/licenses/>. */

module 'dns'.

func hostname (string ipstr)
  returns string
do
  catch *
  do
    return ipstr
  done
  return primitive_hostname(ipstr)
done

func resolve (string str; string domain)
  returns string
do
  catch *
  do
    return "0"
  done
  if defined(domain)
    return primitive_resolve (str, domain)
  else
    return primitive_resolve (str)
  fi
done

func hasmx (string str)
  returns string
do
  catch *
  do
    return 0
  done
  return primitive_hasmx(str)
done

func ismx (string domain, string ipstr)
  returns number
do
  catch *
  do
    return 0
  done
  return primitive_ismx (domain, ipstr)
done

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