git.meshlink.io Git - catta/blob - avahi-core/resolve-address.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of avahi.
   5
   6   avahi is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as
   8   published by the Free Software Foundation; either version 2.1 of the
   9   License, or (at your option) any later version.
  10
  11   avahi is distributed in the hope that it will be useful, but WITHOUT
  12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13   or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
  14   Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with avahi; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include "resolve.h"
  27 #include "util.h"
  28
  29 struct AvahiAddressResolver {
  30     AvahiServer *server;
  31     AvahiAddress address;
  32
  33     AvahiRecordResolver *record_resolver;
  34
  35     AvahiAddressResolverCallback callback;
  36     gpointer userdata;
  37
  38     AVAHI_LLIST_FIELDS(AvahiAddressResolver, resolver);
  39 };
  40
  41 static void record_resolver_callback(AvahiRecordResolver*rr, gint interface, guchar protocol, AvahiBrowserEvent event, AvahiRecord *record, gpointer userdata) {
  42     AvahiAddressResolver *r = userdata;
  43
  44     g_assert(rr);
  45     g_assert(record);
  46     g_assert(r);
  47
  48     r->callback(r, interface, protocol, event, &r->address, record->data.ptr.name, r->userdata);
  49 }
  50
  51 AvahiAddressResolver *avahi_address_resolver_new(AvahiServer *server, gint interface, guchar protocol, const AvahiAddress *address, AvahiAddressResolverCallback callback, gpointer userdata) {
  52     AvahiAddressResolver *r;
  53     AvahiKey *k;
  54     gchar *n;
  55
  56     g_assert(server);
  57     g_assert(address);
  58     g_assert(callback);
  59
  60     g_assert(address->family == AF_INET || address->family == AF_INET6);
  61
  62     r = g_new(AvahiAddressResolver, 1);
  63     r->server = server;
  64     r->address = *address;
  65     r->callback = callback;
  66     r->userdata = userdata;
  67
  68     if (address->family == AF_INET)
  69         n = avahi_reverse_lookup_name_ipv4(&address->data.ipv4);
  70     else
  71         n = avahi_reverse_lookup_name_ipv6_arpa(&address->data.ipv6);
  72
  73     k = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR);
  74     g_free(n);
  75
  76     r->record_resolver = avahi_record_resolver_new(server, interface, protocol, k, record_resolver_callback, r);
  77     avahi_key_unref(k);
  78
  79     AVAHI_LLIST_PREPEND(AvahiAddressResolver, resolver, server->address_resolvers, r);
  80
  81     return r;
  82 }
  83
  84 void avahi_address_resolver_free(AvahiAddressResolver *r) {
  85     g_assert(r);
  86
  87     AVAHI_LLIST_REMOVE(AvahiAddressResolver, resolver, r->server->address_resolvers, r);
  88     avahi_record_resolver_free(r->record_resolver);
  89     g_free(r);
  90 }