mdw@git.distorted.org.uk Git - adns/blob - client/fanftest.c

   1 /*
   2  * fanftest.c
   3  * - a small test program from Tony Finch
   4  */
   5 /*
   6  *  This file is
   7  *   Copyright (C) 1999 Tony Finch <dot@dotat.at>
   8  *   Copyright (C) 1999-2000 Ian Jackson <ian@davenant.greenend.org.uk>
   9  *
  10  *  It is part of adns, which is
  11  *    Copyright (C) 1997-2000,2003,2006,2014-2016  Ian Jackson
  12  *    Copyright (C) 2014  Mark Wooding
  13  *    Copyright (C) 1999-2000,2003,2006  Tony Finch
  14  *    Copyright (C) 1991 Massachusetts Institute of Technology
  15  *  (See the file INSTALL for full details.)
  16  *
  17  *  This program is free software; you can redistribute it and/or modify
  18  *  it under the terms of the GNU General Public License as published by
  19  *  the Free Software Foundation; either version 3, or (at your option)
  20  *  any later version.
  21  *
  22  *  This program is distributed in the hope that it will be useful,
  23  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  *  GNU General Public License for more details.
  26  *
  27  *  You should have received a copy of the GNU General Public License
  28  *  along with this program; if not, write to the Free Software Foundation.
  29  *
  30  * This version was originally supplied by Tony Finch, but has been
  31  * modified by Ian Jackson as it was incorporated into adns.
  32  */
  33
  34 #include <sys/types.h>
  35 #include <sys/time.h>
  36
  37 #include <string.h>
  38 #include <stdlib.h>
  39 #include <stdio.h>
  40 #include <errno.h>
  41
  42 #include "config.h"
  43 #include "adns.h"
  44
  45 static const char *progname;
  46
  47 static void aargh(const char *msg) {
  48   fprintf(stderr, "%s: %s: %s (%d)\n", progname, msg,
  49           strerror(errno) ? strerror(errno) : "Unknown error", errno);
  50   exit(1);
  51 }
  52
  53 int main(int argc, char *argv[]) {
  54   adns_state adns;
  55   adns_query query;
  56   adns_answer *answer;
  57
  58   progname= strrchr(*argv, '/');
  59   if (progname)
  60     progname++;
  61   else
  62     progname= *argv;
  63
  64   if (argc != 2) {
  65     fprintf(stderr, "usage: %s <domain>\n", progname);
  66     exit(1);
  67   }
  68
  69   errno= adns_init(&adns, adns_if_debug, 0);
  70   if (errno) aargh("adns_init");
  71
  72   errno= adns_submit(adns, argv[1], adns_r_ptr,
  73                      adns_qf_quoteok_cname|adns_qf_cname_loose,
  74                      NULL, &query);
  75   if (errno) aargh("adns_submit");
  76
  77   errno= adns_wait(adns, &query, &answer, NULL);
  78   if (errno) aargh("adns_init");
  79
  80   printf("%s\n", answer->status == adns_s_ok ? *answer->rrs.str : "dunno");
  81
  82   adns_finish(adns);
  83
  84   return 0;
  85 }