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 <stdlib.h>
25 #include <stdio.h>
26 #include <string.h>
27
28 #include <dbus/dbus.h>
29
30 #include <avahi-client/client.h>
31 #include <avahi-common/dbus.h>
32 #include <avahi-common/llist.h>
33 #include <avahi-common/error.h>
34 #include "avahi-common/avahi-malloc.h"
35
36 #include "client.h"
37 #include "internal.h"
38
39 /* AvahiServiceResolver implementation */
40
avahi_service_resolver_event(AvahiClient * client,AvahiResolverEvent event,DBusMessage * message)41 DBusHandlerResult avahi_service_resolver_event (AvahiClient *client, AvahiResolverEvent event, DBusMessage *message) {
42 AvahiServiceResolver *r = NULL;
43 DBusError error;
44 const char *path;
45 AvahiStringList *strlst = NULL;
46
47 assert(client);
48 assert(message);
49
50 dbus_error_init (&error);
51
52 if (!(path = dbus_message_get_path(message)))
53 goto fail;
54
55 for (r = client->service_resolvers; r; r = r->service_resolvers_next)
56 if (strcmp (r->path, path) == 0)
57 break;
58
59 if (!r)
60 goto fail;
61
62 switch (event) {
63 case AVAHI_RESOLVER_FOUND: {
64 int j;
65 int32_t interface, protocol, aprotocol;
66 uint32_t flags;
67 char *name, *type, *domain, *host, *address;
68 uint16_t port;
69 DBusMessageIter iter, sub;
70 AvahiAddress a;
71
72 if (!dbus_message_get_args(
73 message, &error,
74 DBUS_TYPE_INT32, &interface,
75 DBUS_TYPE_INT32, &protocol,
76 DBUS_TYPE_STRING, &name,
77 DBUS_TYPE_STRING, &type,
78 DBUS_TYPE_STRING, &domain,
79 DBUS_TYPE_STRING, &host,
80 DBUS_TYPE_INT32, &aprotocol,
81 DBUS_TYPE_STRING, &address,
82 DBUS_TYPE_UINT16, &port,
83 DBUS_TYPE_INVALID) ||
84 dbus_error_is_set (&error)) {
85
86 fprintf(stderr, "Failed to parse resolver event.\n");
87 goto fail;
88 }
89
90 dbus_message_iter_init(message, &iter);
91
92 for (j = 0; j < 9; j++)
93 dbus_message_iter_next(&iter);
94
95 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
96 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_ARRAY) {
97 fprintf(stderr, "Error parsing service resolving message\n");
98 goto fail;
99 }
100
101 strlst = NULL;
102 dbus_message_iter_recurse(&iter, &sub);
103
104 for (;;) {
105 DBusMessageIter sub2;
106 int at;
107 const uint8_t *k;
108 int n;
109
110 if ((at = dbus_message_iter_get_arg_type(&sub)) == DBUS_TYPE_INVALID)
111 break;
112
113 assert(at == DBUS_TYPE_ARRAY);
114
115 if (dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_BYTE) {
116 fprintf(stderr, "Error parsing service resolving message\n");
117 goto fail;
118 }
119
120 dbus_message_iter_recurse(&sub, &sub2);
121
122 k = NULL; n = 0;
123 dbus_message_iter_get_fixed_array(&sub2, &k, &n);
124 if (k && n > 0)
125 strlst = avahi_string_list_add_arbitrary(strlst, k, n);
126
127 dbus_message_iter_next(&sub);
128 }
129
130 dbus_message_iter_next(&iter);
131
132 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32) {
133 fprintf(stderr, "Failed to parse resolver event.\n");
134 goto fail;
135 }
136
137 dbus_message_iter_get_basic(&iter, &flags);
138
139 assert(address);
140
141 if (address[0] == 0)
142 address = NULL;
143 else
144 avahi_address_parse(address, (AvahiProtocol) aprotocol, &a);
145
146 r->callback(r, (AvahiIfIndex) interface, (AvahiProtocol) protocol, AVAHI_RESOLVER_FOUND, name, type, domain, host, address ? &a : NULL, port, strlst, (AvahiLookupResultFlags) flags, r->userdata);
147
148 avahi_string_list_free(strlst);
149 break;
150 }
151
152 case AVAHI_RESOLVER_FAILURE: {
153 char *etxt;
154
155 if (!dbus_message_get_args(
156 message, &error,
157 DBUS_TYPE_STRING, &etxt,
158 DBUS_TYPE_INVALID) ||
159 dbus_error_is_set (&error)) {
160 fprintf(stderr, "Failed to parse resolver event.\n");
161 goto fail;
162 }
163
164 avahi_client_set_errno(r->client, avahi_error_dbus_to_number(etxt));
165 r->callback(r, r->interface, r->protocol, event, r->name, r->type, r->domain, NULL, NULL, 0, NULL, 0, r->userdata);
166 break;
167 }
168 }
169
170 return DBUS_HANDLER_RESULT_HANDLED;
171
172
173 fail:
174 dbus_error_free (&error);
175 avahi_string_list_free(strlst);
176 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
177 }
178
avahi_service_resolver_new(AvahiClient * client,AvahiIfIndex interface,AvahiProtocol protocol,const char * name,const char * type,const char * domain,AvahiProtocol aprotocol,AvahiLookupFlags flags,AvahiServiceResolverCallback callback,void * userdata)179 AvahiServiceResolver * avahi_service_resolver_new(
180 AvahiClient *client,
181 AvahiIfIndex interface,
182 AvahiProtocol protocol,
183 const char *name,
184 const char *type,
185 const char *domain,
186 AvahiProtocol aprotocol,
187 AvahiLookupFlags flags,
188 AvahiServiceResolverCallback callback,
189 void *userdata) {
190
191 DBusError error;
192 AvahiServiceResolver *r = NULL;
193 DBusMessage *message = NULL, *reply = NULL;
194 int32_t i_interface, i_protocol, i_aprotocol;
195 uint32_t u_flags;
196 char *path;
197
198 assert(client);
199 assert(type);
200
201 if (!domain)
202 domain = "";
203
204 if (!name)
205 name = "";
206
207 dbus_error_init (&error);
208
209 if (!avahi_client_is_connected(client)) {
210 avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
211 goto fail;
212 }
213
214 if (!(r = avahi_new(AvahiServiceResolver, 1))) {
215 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
216 goto fail;
217 }
218
219 r->client = client;
220 r->callback = callback;
221 r->userdata = userdata;
222 r->path = NULL;
223 r->name = r->type = r->domain = NULL;
224 r->interface = interface;
225 r->protocol = protocol;
226
227 AVAHI_LLIST_PREPEND(AvahiServiceResolver, service_resolvers, client->service_resolvers, r);
228
229 if (name && name[0])
230 if (!(r->name = avahi_strdup(name))) {
231 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
232 goto fail;
233 }
234
235 if (!(r->type = avahi_strdup(type))) {
236 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
237 goto fail;
238 }
239
240 if (domain && domain[0])
241 if (!(r->domain = avahi_strdup(domain))) {
242 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
243 goto fail;
244 }
245
246
247 if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "ServiceResolverNew"))) {
248 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
249 goto fail;
250 }
251
252 i_interface = (int32_t) interface;
253 i_protocol = (int32_t) protocol;
254 i_aprotocol = (int32_t) aprotocol;
255 u_flags = (uint32_t) flags;
256
257 if (!(dbus_message_append_args(
258 message,
259 DBUS_TYPE_INT32, &i_interface,
260 DBUS_TYPE_INT32, &i_protocol,
261 DBUS_TYPE_STRING, &name,
262 DBUS_TYPE_STRING, &type,
263 DBUS_TYPE_STRING, &domain,
264 DBUS_TYPE_INT32, &i_aprotocol,
265 DBUS_TYPE_UINT32, &u_flags,
266 DBUS_TYPE_INVALID))) {
267 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
268 goto fail;
269 }
270
271 if (!(reply = dbus_connection_send_with_reply_and_block(client->bus, message, -1, &error)) ||
272 dbus_error_is_set(&error)) {
273 avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
274 goto fail;
275 }
276
277 if (!dbus_message_get_args (reply, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID) ||
278 dbus_error_is_set(&error) ||
279 !path) {
280 avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
281 goto fail;
282 }
283
284 if (!(r->path = avahi_strdup(path))) {
285
286 /* FIXME: We don't remove the object on the server side */
287
288 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
289 goto fail;
290 }
291
292
293 dbus_message_unref(message);
294 dbus_message_unref(reply);
295
296 return r;
297
298 fail:
299
300 if (dbus_error_is_set(&error)) {
301 avahi_client_set_dbus_error(client, &error);
302 dbus_error_free(&error);
303 }
304
305 if (r)
306 avahi_service_resolver_free(r);
307
308 if (message)
309 dbus_message_unref(message);
310
311 if (reply)
312 dbus_message_unref(reply);
313
314 return NULL;
315
316 }
317
avahi_service_resolver_get_client(AvahiServiceResolver * r)318 AvahiClient* avahi_service_resolver_get_client (AvahiServiceResolver *r) {
319 assert (r);
320
321 return r->client;
322 }
323
avahi_service_resolver_free(AvahiServiceResolver * r)324 int avahi_service_resolver_free(AvahiServiceResolver *r) {
325 AvahiClient *client;
326 int ret = AVAHI_OK;
327
328 assert(r);
329 client = r->client;
330
331 if (r->path && avahi_client_is_connected(client))
332 ret = avahi_client_simple_method_call(client, r->path, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "Free");
333
334 AVAHI_LLIST_REMOVE(AvahiServiceResolver, service_resolvers, client->service_resolvers, r);
335
336 avahi_free(r->path);
337 avahi_free(r->name);
338 avahi_free(r->type);
339 avahi_free(r->domain);
340 avahi_free(r);
341
342 return ret;
343 }
344
345 /* AvahiHostNameResolver implementation */
346
avahi_host_name_resolver_event(AvahiClient * client,AvahiResolverEvent event,DBusMessage * message)347 DBusHandlerResult avahi_host_name_resolver_event (AvahiClient *client, AvahiResolverEvent event, DBusMessage *message) {
348 AvahiHostNameResolver *r = NULL;
349 DBusError error;
350 const char *path;
351
352 assert(client);
353 assert(message);
354
355 dbus_error_init (&error);
356
357 if (!(path = dbus_message_get_path(message)))
358 goto fail;
359
360 for (r = client->host_name_resolvers; r; r = r->host_name_resolvers_next)
361 if (strcmp (r->path, path) == 0)
362 break;
363
364 if (!r)
365 goto fail;
366
367 switch (event) {
368 case AVAHI_RESOLVER_FOUND: {
369 int32_t interface, protocol, aprotocol;
370 uint32_t flags;
371 char *name, *address;
372 AvahiAddress a;
373
374 if (!dbus_message_get_args(
375 message, &error,
376 DBUS_TYPE_INT32, &interface,
377 DBUS_TYPE_INT32, &protocol,
378 DBUS_TYPE_STRING, &name,
379 DBUS_TYPE_INT32, &aprotocol,
380 DBUS_TYPE_STRING, &address,
381 DBUS_TYPE_UINT32, &flags,
382 DBUS_TYPE_INVALID) ||
383 dbus_error_is_set (&error)) {
384 fprintf(stderr, "Failed to parse resolver event.\n");
385 goto fail;
386 }
387
388 assert(address);
389 if (!avahi_address_parse(address, (AvahiProtocol) aprotocol, &a)) {
390 fprintf(stderr, "Failed to parse address\n");
391 goto fail;
392 }
393
394 r->callback(r, (AvahiIfIndex) interface, (AvahiProtocol) protocol, AVAHI_RESOLVER_FOUND, name, &a, (AvahiLookupResultFlags) flags, r->userdata);
395 break;
396 }
397
398 case AVAHI_RESOLVER_FAILURE: {
399 char *etxt;
400
401 if (!dbus_message_get_args(
402 message, &error,
403 DBUS_TYPE_STRING, &etxt,
404 DBUS_TYPE_INVALID) ||
405 dbus_error_is_set (&error)) {
406 fprintf(stderr, "Failed to parse resolver event.\n");
407 goto fail;
408 }
409
410 avahi_client_set_errno(r->client, avahi_error_dbus_to_number(etxt));
411 r->callback(r, r->interface, r->protocol, event, r->host_name, NULL, 0, r->userdata);
412 break;
413 }
414 }
415
416 return DBUS_HANDLER_RESULT_HANDLED;
417
418 fail:
419 dbus_error_free (&error);
420 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
421 }
422
423
avahi_host_name_resolver_new(AvahiClient * client,AvahiIfIndex interface,AvahiProtocol protocol,const char * name,AvahiProtocol aprotocol,AvahiLookupFlags flags,AvahiHostNameResolverCallback callback,void * userdata)424 AvahiHostNameResolver * avahi_host_name_resolver_new(
425 AvahiClient *client,
426 AvahiIfIndex interface,
427 AvahiProtocol protocol,
428 const char *name,
429 AvahiProtocol aprotocol,
430 AvahiLookupFlags flags,
431 AvahiHostNameResolverCallback callback,
432 void *userdata) {
433
434 DBusError error;
435 AvahiHostNameResolver *r = NULL;
436 DBusMessage *message = NULL, *reply = NULL;
437 int32_t i_interface, i_protocol, i_aprotocol;
438 uint32_t u_flags;
439 char *path;
440
441 assert(client);
442 assert(name);
443
444 dbus_error_init (&error);
445
446 if (!avahi_client_is_connected(client)) {
447 avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
448 goto fail;
449 }
450
451 if (!(r = avahi_new(AvahiHostNameResolver, 1))) {
452 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
453 goto fail;
454 }
455
456 r->client = client;
457 r->callback = callback;
458 r->userdata = userdata;
459 r->path = NULL;
460 r->interface = interface;
461 r->protocol = protocol;
462 r->host_name = NULL;
463
464 AVAHI_LLIST_PREPEND(AvahiHostNameResolver, host_name_resolvers, client->host_name_resolvers, r);
465
466 if (!(r->host_name = avahi_strdup(name))) {
467 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
468 goto fail;
469 }
470
471 if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "HostNameResolverNew"))) {
472 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
473 goto fail;
474 }
475
476 i_interface = (int32_t) interface;
477 i_protocol = (int32_t) protocol;
478 i_aprotocol = (int32_t) aprotocol;
479 u_flags = (uint32_t) flags;
480
481 if (!(dbus_message_append_args(
482 message,
483 DBUS_TYPE_INT32, &i_interface,
484 DBUS_TYPE_INT32, &i_protocol,
485 DBUS_TYPE_STRING, &name,
486 DBUS_TYPE_INT32, &i_aprotocol,
487 DBUS_TYPE_UINT32, &u_flags,
488 DBUS_TYPE_INVALID))) {
489 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
490 goto fail;
491 }
492
493 if (!(reply = dbus_connection_send_with_reply_and_block(client->bus, message, -1, &error)) ||
494 dbus_error_is_set(&error)) {
495 avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
496 goto fail;
497 }
498
499 if (!dbus_message_get_args (reply, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID) ||
500 dbus_error_is_set(&error) ||
501 !path) {
502 avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
503 goto fail;
504 }
505
506 if (!(r->path = avahi_strdup(path))) {
507
508 /* FIXME: We don't remove the object on the server side */
509
510 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
511 goto fail;
512 }
513
514 dbus_message_unref(message);
515 dbus_message_unref(reply);
516
517 return r;
518
519 fail:
520
521 if (dbus_error_is_set(&error)) {
522 avahi_client_set_dbus_error(client, &error);
523 dbus_error_free(&error);
524 }
525
526 if (r)
527 avahi_host_name_resolver_free(r);
528
529 if (message)
530 dbus_message_unref(message);
531
532 if (reply)
533 dbus_message_unref(reply);
534
535 return NULL;
536
537 }
538
avahi_host_name_resolver_free(AvahiHostNameResolver * r)539 int avahi_host_name_resolver_free(AvahiHostNameResolver *r) {
540 int ret = AVAHI_OK;
541 AvahiClient *client;
542
543 assert(r);
544 client = r->client;
545
546 if (r->path && avahi_client_is_connected(client))
547 ret = avahi_client_simple_method_call(client, r->path, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "Free");
548
549 AVAHI_LLIST_REMOVE(AvahiHostNameResolver, host_name_resolvers, client->host_name_resolvers, r);
550
551 avahi_free(r->path);
552 avahi_free(r->host_name);
553 avahi_free(r);
554
555 return ret;
556 }
557
avahi_host_name_resolver_get_client(AvahiHostNameResolver * r)558 AvahiClient* avahi_host_name_resolver_get_client (AvahiHostNameResolver *r) {
559 assert (r);
560
561 return r->client;
562 }
563
564 /* AvahiAddressResolver implementation */
565
avahi_address_resolver_event(AvahiClient * client,AvahiResolverEvent event,DBusMessage * message)566 DBusHandlerResult avahi_address_resolver_event (AvahiClient *client, AvahiResolverEvent event, DBusMessage *message) {
567 AvahiAddressResolver *r = NULL;
568 DBusError error;
569 const char *path;
570
571 assert(client);
572 assert(message);
573
574 dbus_error_init (&error);
575
576 if (!(path = dbus_message_get_path(message)))
577 goto fail;
578
579 for (r = client->address_resolvers; r; r = r->address_resolvers_next)
580 if (strcmp (r->path, path) == 0)
581 break;
582
583 if (!r)
584 goto fail;
585
586 switch (event) {
587 case AVAHI_RESOLVER_FOUND: {
588 int32_t interface, protocol, aprotocol;
589 uint32_t flags;
590 char *name, *address;
591 AvahiAddress a;
592
593 if (!dbus_message_get_args(
594 message, &error,
595 DBUS_TYPE_INT32, &interface,
596 DBUS_TYPE_INT32, &protocol,
597 DBUS_TYPE_INT32, &aprotocol,
598 DBUS_TYPE_STRING, &address,
599 DBUS_TYPE_STRING, &name,
600 DBUS_TYPE_UINT32, &flags,
601 DBUS_TYPE_INVALID) ||
602 dbus_error_is_set (&error)) {
603 fprintf(stderr, "Failed to parse resolver event.\n");
604 goto fail;
605 }
606
607 assert(address);
608 if (!avahi_address_parse(address, (AvahiProtocol) aprotocol, &a)) {
609 fprintf(stderr, "Failed to parse address\n");
610 goto fail;
611 }
612
613 r->callback(r, (AvahiIfIndex) interface, (AvahiProtocol) protocol, AVAHI_RESOLVER_FOUND, &a, name, (AvahiLookupResultFlags) flags, r->userdata);
614 break;
615 }
616
617 case AVAHI_RESOLVER_FAILURE: {
618 char *etxt;
619
620 if (!dbus_message_get_args(
621 message, &error,
622 DBUS_TYPE_STRING, &etxt,
623 DBUS_TYPE_INVALID) ||
624 dbus_error_is_set (&error)) {
625 fprintf(stderr, "Failed to parse resolver event.\n");
626 goto fail;
627 }
628
629 avahi_client_set_errno(r->client, avahi_error_dbus_to_number(etxt));
630 r->callback(r, r->interface, r->protocol, event, &r->address, NULL, 0, r->userdata);
631 break;
632 }
633 }
634
635 return DBUS_HANDLER_RESULT_HANDLED;
636
637 fail:
638 dbus_error_free (&error);
639 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
640 }
641
avahi_address_resolver_new(AvahiClient * client,AvahiIfIndex interface,AvahiProtocol protocol,const AvahiAddress * a,AvahiLookupFlags flags,AvahiAddressResolverCallback callback,void * userdata)642 AvahiAddressResolver * avahi_address_resolver_new(
643 AvahiClient *client,
644 AvahiIfIndex interface,
645 AvahiProtocol protocol,
646 const AvahiAddress *a,
647 AvahiLookupFlags flags,
648 AvahiAddressResolverCallback callback,
649 void *userdata) {
650
651 DBusError error;
652 AvahiAddressResolver *r = NULL;
653 DBusMessage *message = NULL, *reply = NULL;
654 int32_t i_interface, i_protocol;
655 uint32_t u_flags;
656 char *path;
657 char addr[AVAHI_ADDRESS_STR_MAX], *address = addr;
658
659 assert(client);
660 assert(a);
661
662 dbus_error_init (&error);
663
664 if (!avahi_address_snprint (addr, sizeof(addr), a)) {
665 avahi_client_set_errno(client, AVAHI_ERR_INVALID_ADDRESS);
666 return NULL;
667 }
668
669 if (!avahi_client_is_connected(client)) {
670 avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
671 goto fail;
672 }
673
674 if (!(r = avahi_new(AvahiAddressResolver, 1))) {
675 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
676 goto fail;
677 }
678
679 r->client = client;
680 r->callback = callback;
681 r->userdata = userdata;
682 r->path = NULL;
683 r->interface = interface;
684 r->protocol = protocol;
685 r->address = *a;
686
687 AVAHI_LLIST_PREPEND(AvahiAddressResolver, address_resolvers, client->address_resolvers, r);
688
689 if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "AddressResolverNew"))) {
690 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
691 goto fail;
692 }
693
694 i_interface = (int32_t) interface;
695 i_protocol = (int32_t) protocol;
696 u_flags = (uint32_t) flags;
697
698 if (!(dbus_message_append_args(
699 message,
700 DBUS_TYPE_INT32, &i_interface,
701 DBUS_TYPE_INT32, &i_protocol,
702 DBUS_TYPE_STRING, &address,
703 DBUS_TYPE_UINT32, &u_flags,
704 DBUS_TYPE_INVALID))) {
705 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
706 goto fail;
707 }
708
709 if (!(reply = dbus_connection_send_with_reply_and_block(client->bus, message, -1, &error)) ||
710 dbus_error_is_set(&error)) {
711 avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
712 goto fail;
713 }
714
715 if (!dbus_message_get_args (reply, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID) ||
716 dbus_error_is_set(&error) ||
717 !path) {
718 avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
719 goto fail;
720 }
721
722 if (!(r->path = avahi_strdup(path))) {
723
724 /* FIXME: We don't remove the object on the server side */
725
726 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
727 goto fail;
728 }
729
730 dbus_message_unref(message);
731 dbus_message_unref(reply);
732
733 return r;
734
735 fail:
736
737 if (dbus_error_is_set(&error)) {
738 avahi_client_set_dbus_error(client, &error);
739 dbus_error_free(&error);
740 }
741
742 if (r)
743 avahi_address_resolver_free(r);
744
745 if (message)
746 dbus_message_unref(message);
747
748 if (reply)
749 dbus_message_unref(reply);
750
751 return NULL;
752
753 }
754
avahi_address_resolver_get_client(AvahiAddressResolver * r)755 AvahiClient* avahi_address_resolver_get_client (AvahiAddressResolver *r) {
756 assert (r);
757
758 return r->client;
759 }
760
avahi_address_resolver_free(AvahiAddressResolver * r)761 int avahi_address_resolver_free(AvahiAddressResolver *r) {
762 AvahiClient *client;
763 int ret = AVAHI_OK;
764
765 assert(r);
766 client = r->client;
767
768 if (r->path && avahi_client_is_connected(client))
769 ret = avahi_client_simple_method_call(client, r->path, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Free");
770
771 AVAHI_LLIST_REMOVE(AvahiAddressResolver, address_resolvers, client->address_resolvers, r);
772
773 avahi_free(r->path);
774 avahi_free(r);
775
776 return ret;
777 }
778
779