external/bsd/bind/dist/contrib/query-loc-0.4.0/query-loc.c

   1 /*      $NetBSD: query-loc.c,v 1.4 2014/12/10 04:37:56 christos Exp $   */
   2
   3 #include        "loc.h"
   4
   5 /* Id: query-loc.c,v 1.1 2008/02/15 01:47:15 marka Exp  */
   6
   7 /* Global variables */
   8 char *progname;
   9 short debug;
  10
  11 int
  12 main (argc, argv)
  13      int argc;
  14      char *argv[];
  15 {
  16   extern char *optarg;
  17   extern int optind;
  18
  19   short verbose = FALSE;
  20   char *host;
  21
  22   char ch;
  23
  24   char *loc = NULL;
  25   struct in_addr addr;
  26   struct hostent *hp;
  27
  28   progname = argv[0];
  29   while ((ch = getopt (argc, argv, "vd:")) != EOF)
  30     {
  31       switch (ch)
  32         {
  33         case 'v':
  34           verbose = TRUE;
  35           break;
  36         case 'd':
  37           debug = atoi (optarg);
  38           if (debug <= 0)
  39             {
  40               (void) fprintf (stderr,
  41                               "%s: illegal debug value.\n", progname);
  42               exit (2);
  43             }
  44           break;
  45         default:
  46           usage ();
  47         }
  48     }
  49   argc -= optind;
  50   argv += optind;
  51   if (argc != 1)
  52     {
  53       usage ();
  54     }
  55   if (verbose || debug)
  56     {
  57       printf ("\nThis is %s, version %s.\n\n", progname, VERSION);
  58     }
  59   host = argv[0];
  60   (void) res_init ();
  61
  62   if ((addr.s_addr = inet_addr (host)) == INADDR_NONE)
  63     {
  64       if (debug >= 1)
  65         printf ("%s is a name\n", host);
  66       loc = getlocbyname (host, FALSE);
  67     }
  68   else
  69     {
  70       if (debug >= 1)
  71         printf ("%s is an IP address ", host);
  72       hp = (struct hostent *) gethostbyaddr
  73         ((char *) &addr, sizeof (addr), AF_INET);
  74       if (hp)
  75         {
  76           if (debug >= 1)
  77             printf ("and %s is its official name\n",
  78                     hp->h_name);
  79           loc = getlocbyname (hp->h_name, FALSE);
  80         }
  81       else
  82         {
  83           if (debug >= 1)
  84             printf ("which has no name\n");
  85           loc = getlocbyaddr (addr, NULL);
  86         }
  87     }
  88   if (loc == NULL)
  89     {
  90       printf ("No LOCation found for %s\n", host);
  91       exit (1);
  92     }
  93   else
  94     {
  95       if (verbose || debug)
  96         printf ("LOCation for %s is ", host);
  97       printf ("%s\n", loc);
  98       exit (0);
  99     }
 100 }