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      1 /***
      2   This file is part of avahi.
      3 
      4   avahi is free software; you can redistribute it and/or modify it
      5   under the terms of the GNU Lesser General Public License as
      6   published by the Free Software Foundation; either version 2.1 of the
      7   License, or (at your option) any later version.
      8 
      9   avahi is distributed in the hope that it will be useful, but WITHOUT
     10   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     11   or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
     12   Public License for more details.
     13 
     14   You should have received a copy of the GNU Lesser General Public
     15   License along with avahi; if not, write to the Free Software
     16   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
     17   USA.
     18 ***/
     19 
     20 #ifdef HAVE_CONFIG_H
     21 #include <config.h>
     22 #endif
     23 
     24 #include <string.h>
     25 
     26 #include "avahi-common/avahi-malloc.h"
     27 #include <avahi-common/dbus.h>
     28 #include <avahi-common/error.h>
     29 #include <avahi-core/log.h>
     30 
     31 #include "dbus-util.h"
     32 #include "dbus-internal.h"
     33 #include "main.h"
     34 
     35 void avahi_dbus_sync_address_resolver_free(SyncAddressResolverInfo *i) {
     36     assert(i);
     37 
     38     if (i->address_resolver)
     39         avahi_s_address_resolver_free(i->address_resolver);
     40     dbus_message_unref(i->message);
     41     AVAHI_LLIST_REMOVE(SyncAddressResolverInfo, sync_address_resolvers, i->client->sync_address_resolvers, i);
     42 
     43     assert(i->client->n_objects >= 1);
     44     i->client->n_objects--;
     45 
     46     avahi_free(i);
     47 }
     48 
     49 void avahi_dbus_sync_address_resolver_callback(AvahiSAddressResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const AvahiAddress *address, const char *host_name, AvahiLookupResultFlags flags, void* userdata) {
     50     SyncAddressResolverInfo *i = userdata;
     51 
     52     assert(r);
     53     assert(address);
     54     assert(i);
     55 
     56     if (event == AVAHI_RESOLVER_FOUND) {
     57         char t[AVAHI_ADDRESS_STR_MAX], *pt = t;
     58         int32_t i_interface, i_protocol, i_aprotocol;
     59         uint32_t u_flags;
     60         DBusMessage *reply;
     61 
     62         assert(host_name);
     63         avahi_address_snprint(t, sizeof(t), address);
     64 
     65         i_interface = (int32_t) interface;
     66         i_protocol = (int32_t) protocol;
     67         i_aprotocol = (int32_t) address->proto;
     68         u_flags = (uint32_t) flags;
     69 
     70         reply = dbus_message_new_method_return(i->message);
     71 
     72         if (!reply) {
     73             avahi_log_error("Failed allocate message");
     74             goto finish;
     75         }
     76 
     77         dbus_message_append_args(
     78             reply,
     79             DBUS_TYPE_INT32, &i_interface,
     80             DBUS_TYPE_INT32, &i_protocol,
     81             DBUS_TYPE_INT32, &i_aprotocol,
     82             DBUS_TYPE_STRING, &pt,
     83             DBUS_TYPE_STRING, &host_name,
     84             DBUS_TYPE_UINT32, &u_flags,
     85             DBUS_TYPE_INVALID);
     86 
     87         dbus_connection_send(server->bus, reply, NULL);
     88         dbus_message_unref(reply);
     89     } else {
     90         assert(event == AVAHI_RESOLVER_FAILURE);
     91         avahi_dbus_respond_error(server->bus, i->message, avahi_server_errno(avahi_server), NULL);
     92     }
     93 
     94 finish:
     95     avahi_dbus_sync_address_resolver_free(i);
     96 }
     97