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/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 
avahi_dbus_sync_host_name_resolver_free(SyncHostNameResolverInfo * i)35 void avahi_dbus_sync_host_name_resolver_free(SyncHostNameResolverInfo *i) {
36     assert(i);
37 
38     if (i->host_name_resolver)
39         avahi_s_host_name_resolver_free(i->host_name_resolver);
40     dbus_message_unref(i->message);
41     AVAHI_LLIST_REMOVE(SyncHostNameResolverInfo, sync_host_name_resolvers, i->client->sync_host_name_resolvers, i);
42 
43     assert(i->client->n_objects >= 1);
44     i->client->n_objects--;
45 
46     avahi_free(i);
47 }
48 
avahi_dbus_sync_host_name_resolver_callback(AvahiSHostNameResolver * r,AvahiIfIndex interface,AvahiProtocol protocol,AvahiResolverEvent event,const char * host_name,const AvahiAddress * a,AvahiLookupResultFlags flags,void * userdata)49 void avahi_dbus_sync_host_name_resolver_callback(AvahiSHostNameResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const char *host_name, const AvahiAddress *a, AvahiLookupResultFlags flags, void* userdata) {
50     SyncHostNameResolverInfo *i = userdata;
51 
52     assert(r);
53     assert(host_name);
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(a);
63         avahi_address_snprint(t, sizeof(t), a);
64 
65         i_interface = (int32_t) interface;
66         i_protocol = (int32_t) protocol;
67         i_aprotocol = (int32_t) a->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_STRING, &host_name,
82             DBUS_TYPE_INT32, &i_aprotocol,
83             DBUS_TYPE_STRING, &pt,
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_host_name_resolver_free(i);
96 }
97