examples/fdnsname.c

   1 #include <stdio.h>
   2 #include "../include/firedns.h"
   3
   4 int main(int argc, char **argv) {
   5         char *result;
   6         struct in6_addr buf6;
   7         struct in_addr buf4;
   8         struct in_addr *binip;
   9         struct in6_addr *binip6;
  10         firedns_state dns, *d = &dns;
  11
  12         if (argc != 2) {
  13                 fprintf(stderr,"usage: %s <ip address>\n",argv[0]);
  14                 return 2;
  15         }
  16
  17         firedns_init(d);
  18         firedns_add_servers_from_resolv_conf(d);
  19
  20         binip6 = firedns_aton6(argv[1], &buf6);
  21         if (binip6 == NULL) {
  22                 binip = firedns_aton4(argv[1], &buf4);
  23                 if (binip == NULL) {
  24                         fprintf(stderr,"invalid IP address.\n");
  25                         return 2;
  26                 }
  27
  28                 result = firedns_resolvename4(d, binip);
  29         } else
  30                 result = firedns_resolvename6(d, binip6);
  31
  32         if (result) {
  33                 printf("%s\n",result);
  34                 return 0;
  35         }
  36
  37         return 1;
  38 }