4 This file is part of avahi.
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.
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.
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
33 #include <netinet/in.h>
35 #include <avahi-common/simple-watch.h>
36 #include <avahi-common/malloc.h>
37 #include <avahi-common/error.h>
38 #include <avahi-common/domain.h>
39 #include <avahi-common/alternative.h>
40 #include <avahi-client/client.h>
48 COMMAND_POLL_DONE = 'P'
51 struct _DNSServiceRef_t {
54 AvahiSimplePoll *simple_poll;
56 int thread_fd, main_fd;
61 pthread_mutex_t mutex;
64 DNSServiceBrowseReply service_browser_callback;
65 DNSServiceResolveReply service_resolver_callback;
66 DNSServiceDomainEnumReply domain_browser_callback;
67 DNSServiceRegisterReply service_register_callback;
70 AvahiServiceBrowser *service_browser;
71 AvahiServiceResolver *service_resolver;
72 AvahiDomainBrowser *domain_browser;
74 char *service_name, *service_name_chosen, *service_regtype, *service_domain, *service_host;
75 uint16_t service_port;
76 AvahiIfIndex service_interface;
77 AvahiStringList *service_txt;
79 AvahiEntryGroup *entry_group;
82 #define ASSERT_SUCCESS(r) { int __ret = (r); assert(__ret == 0); }
84 static DNSServiceErrorType map_error(int error) {
87 return kDNSServiceErr_NoError;
89 case AVAHI_ERR_BAD_STATE :
90 return kDNSServiceErr_BadState;
92 case AVAHI_ERR_INVALID_HOST_NAME:
93 case AVAHI_ERR_INVALID_DOMAIN_NAME:
94 case AVAHI_ERR_INVALID_TTL:
95 case AVAHI_ERR_IS_PATTERN:
96 case AVAHI_ERR_INVALID_RECORD:
97 case AVAHI_ERR_INVALID_SERVICE_NAME:
98 case AVAHI_ERR_INVALID_SERVICE_TYPE:
99 case AVAHI_ERR_INVALID_PORT:
100 case AVAHI_ERR_INVALID_KEY:
101 case AVAHI_ERR_INVALID_ADDRESS:
102 case AVAHI_ERR_INVALID_SERVICE_SUBTYPE:
103 return kDNSServiceErr_BadParam;
106 case AVAHI_ERR_LOCAL_COLLISION:
107 return kDNSServiceErr_NameConflict;
109 case AVAHI_ERR_TOO_MANY_CLIENTS:
110 case AVAHI_ERR_TOO_MANY_OBJECTS:
111 case AVAHI_ERR_TOO_MANY_ENTRIES:
112 case AVAHI_ERR_ACCESS_DENIED:
113 return kDNSServiceErr_Refused;
115 case AVAHI_ERR_INVALID_OPERATION:
116 case AVAHI_ERR_INVALID_OBJECT:
117 return kDNSServiceErr_Invalid;
119 case AVAHI_ERR_NO_MEMORY:
120 return kDNSServiceErr_NoMemory;
122 case AVAHI_ERR_INVALID_INTERFACE:
123 case AVAHI_ERR_INVALID_PROTOCOL:
124 return kDNSServiceErr_BadInterfaceIndex;
126 case AVAHI_ERR_INVALID_FLAGS:
127 return kDNSServiceErr_BadFlags;
129 case AVAHI_ERR_NOT_FOUND:
130 return kDNSServiceErr_NoSuchName;
132 case AVAHI_ERR_VERSION_MISMATCH:
133 return kDNSServiceErr_Incompatible;
135 case AVAHI_ERR_NO_NETWORK:
137 case AVAHI_ERR_INVALID_CONFIG:
138 case AVAHI_ERR_TIMEOUT:
139 case AVAHI_ERR_DBUS_ERROR:
140 case AVAHI_ERR_NOT_CONNECTED:
141 case AVAHI_ERR_NO_DAEMON:
146 return kDNSServiceErr_Unknown;
149 static const char *add_trailing_dot(const char *s, char *buf, size_t buf_len) {
156 if (s[strlen(s)-1] == '.')
159 snprintf(buf, buf_len, "%s.", s);
163 static int read_command(int fd) {
169 if ((r = read(fd, &command, 1)) != 1) {
170 fprintf(stderr, __FILE__": read() failed: %s\n", r < 0 ? strerror(errno) : "EOF");
177 static int write_command(int fd, char reply) {
180 if (write(fd, &reply, 1) != 1) {
181 fprintf(stderr, __FILE__": write() failed: %s\n", strerror(errno));
188 static int poll_func(struct pollfd *ufds, unsigned int nfds, int timeout, void *userdata) {
189 DNSServiceRef sdref = userdata;
194 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
196 /* fprintf(stderr, "pre-syscall\n"); */
197 ret = poll(ufds, nfds, timeout);
198 /* fprintf(stderr, "post-syscall\n"); */
200 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
205 static void * thread_func(void *data) {
206 DNSServiceRef sdref = data;
210 pthread_sigmask(SIG_BLOCK, &mask, NULL);
212 sdref->thread = pthread_self();
213 sdref->thread_running = 1;
218 if ((command = read_command(sdref->thread_fd)) < 0)
221 /* fprintf(stderr, "Command: %c\n", command); */
227 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
229 if (avahi_simple_poll_run(sdref->simple_poll) < 0) {
230 fprintf(stderr, __FILE__": avahi_simple_poll_run() failed.\n");
231 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
235 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
237 if (write_command(sdref->thread_fd, COMMAND_POLL_DONE) < 0)
251 static DNSServiceRef sdref_new(void) {
252 int fd[2] = { -1, -1 };
253 DNSServiceRef sdref = NULL;
254 pthread_mutexattr_t mutex_attr;
256 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0)
259 if (!(sdref = avahi_new(struct _DNSServiceRef_t, 1)))
263 sdref->thread_fd = fd[0];
264 sdref->main_fd = fd[1];
266 sdref->client = NULL;
267 sdref->service_browser = NULL;
268 sdref->service_resolver = NULL;
269 sdref->domain_browser = NULL;
270 sdref->entry_group = NULL;
272 sdref->service_name = sdref->service_name_chosen = sdref->service_regtype = sdref->service_domain = sdref->service_host = NULL;
273 sdref->service_txt = NULL;
275 ASSERT_SUCCESS(pthread_mutexattr_init(&mutex_attr));
276 pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE);
277 ASSERT_SUCCESS(pthread_mutex_init(&sdref->mutex, NULL));
279 sdref->thread_running = 0;
281 if (!(sdref->simple_poll = avahi_simple_poll_new()))
284 avahi_simple_poll_set_func(sdref->simple_poll, poll_func, sdref);
286 /* Start simple poll */
287 if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0)
290 /* Queue an initial POLL command for the thread */
291 if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
294 if (pthread_create(&sdref->thread, NULL, thread_func, sdref) != 0)
297 sdref->thread_running = 1;
304 DNSServiceRefDeallocate(sdref);
309 static void sdref_free(DNSServiceRef sdref) {
312 if (sdref->thread_running) {
313 ASSERT_SUCCESS(write_command(sdref->main_fd, COMMAND_QUIT));
314 avahi_simple_poll_wakeup(sdref->simple_poll);
315 ASSERT_SUCCESS(pthread_join(sdref->thread, NULL));
319 avahi_client_free(sdref->client);
321 if (sdref->simple_poll)
322 avahi_simple_poll_free(sdref->simple_poll);
325 if (sdref->thread_fd >= 0)
326 close(sdref->thread_fd);
328 if (sdref->main_fd >= 0)
329 close(sdref->main_fd);
331 ASSERT_SUCCESS(pthread_mutex_destroy(&sdref->mutex));
333 avahi_free(sdref->service_name);
334 avahi_free(sdref->service_name_chosen);
335 avahi_free(sdref->service_regtype);
336 avahi_free(sdref->service_domain);
337 avahi_free(sdref->service_host);
339 avahi_string_list_free(sdref->service_txt);
344 static void sdref_ref(DNSServiceRef sdref) {
346 assert(sdref->n_ref >= 1);
351 static void sdref_unref(DNSServiceRef sdref) {
353 assert(sdref->n_ref >= 1);
355 if (--(sdref->n_ref) <= 0)
359 int DNSSD_API DNSServiceRefSockFD(DNSServiceRef sdref) {
361 assert(sdref->n_ref >= 1);
365 return sdref->main_fd;
368 DNSServiceErrorType DNSSD_API DNSServiceProcessResult(DNSServiceRef sdref) {
369 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
372 assert(sdref->n_ref >= 1);
378 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
380 /* Cleanup notification socket */
381 if (read_command(sdref->main_fd) != COMMAND_POLL_DONE)
384 if (avahi_simple_poll_dispatch(sdref->simple_poll) < 0)
387 if (sdref->n_ref > 1) /* Perhaps we should die */
389 /* Dispatch events */
390 if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0)
393 if (sdref->n_ref > 1)
395 /* Request the poll */
396 if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
399 ret = kDNSServiceErr_NoError;
403 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
410 void DNSSD_API DNSServiceRefDeallocate(DNSServiceRef sdref) {
412 assert(sdref->n_ref >= 1);
419 static void service_browser_callback(
420 AvahiServiceBrowser *b,
421 AvahiIfIndex interface,
422 AvahiProtocol protocol,
423 AvahiBrowserEvent event,
427 AvahiLookupResultFlags flags,
430 DNSServiceRef sdref = userdata;
431 char type_fixed[AVAHI_DOMAIN_NAME_MAX], domain_fixed[AVAHI_DOMAIN_NAME_MAX];
434 assert(sdref->n_ref >= 1);
436 type = add_trailing_dot(type, type_fixed, sizeof(type_fixed));
437 domain = add_trailing_dot(domain, domain_fixed, sizeof(domain_fixed));
440 case AVAHI_BROWSER_NEW:
441 sdref->service_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context);
444 case AVAHI_BROWSER_REMOVE:
445 sdref->service_browser_callback(sdref, 0, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context);
448 case AVAHI_BROWSER_FAILURE:
449 sdref->service_browser_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), NULL, NULL, NULL, sdref->context);
452 case AVAHI_BROWSER_CACHE_EXHAUSTED:
453 case AVAHI_BROWSER_ALL_FOR_NOW:
458 static void generic_client_callback(AvahiClient *s, AvahiClientState state, void* userdata) {
459 DNSServiceRef sdref = userdata;
463 assert(sdref->n_ref >= 1);
466 case AVAHI_CLIENT_DISCONNECTED: {
468 if (sdref->service_browser_callback)
469 sdref->service_browser_callback(sdref, 0, 0, kDNSServiceErr_Unknown, NULL, NULL, NULL, sdref->context);
470 else if (sdref->service_resolver_callback)
471 sdref->service_resolver_callback(sdref, 0, 0, kDNSServiceErr_Unknown, NULL, NULL, 0, 0, NULL, sdref->context);
472 else if (sdref->domain_browser_callback)
473 sdref->domain_browser_callback(sdref, 0, 0, kDNSServiceErr_Unknown, NULL, sdref->context);
478 case AVAHI_CLIENT_S_RUNNING:
479 case AVAHI_CLIENT_S_COLLISION:
480 case AVAHI_CLIENT_S_INVALID:
481 case AVAHI_CLIENT_S_REGISTERING:
486 DNSServiceErrorType DNSSD_API DNSServiceBrowse(
487 DNSServiceRef *ret_sdref,
488 DNSServiceFlags flags,
492 DNSServiceBrowseReply callback,
495 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
497 DNSServiceRef sdref = NULL;
498 AvahiIfIndex ifindex;
507 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0) {
508 AVAHI_WARN_UNSUPPORTED;
509 return kDNSServiceErr_Unsupported;
512 if (!(sdref = sdref_new()))
513 return kDNSServiceErr_Unknown;
515 sdref->context = context;
516 sdref->service_browser_callback = callback;
518 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
520 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), generic_client_callback, sdref, &error))) {
521 ret = map_error(error);
525 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
527 if (!(sdref->service_browser = avahi_service_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, regtype, domain, 0, service_browser_callback, sdref))) {
528 ret = map_error(avahi_client_errno(sdref->client));
532 ret = kDNSServiceErr_NoError;
537 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
539 if (ret != kDNSServiceErr_NoError)
540 DNSServiceRefDeallocate(sdref);
546 static void service_resolver_callback(
547 AvahiServiceResolver *r,
548 AvahiIfIndex interface,
549 AvahiProtocol protocol,
550 AvahiResolverEvent event,
554 const char *host_name,
555 const AvahiAddress *a,
557 AvahiStringList *txt,
558 AvahiLookupResultFlags flags,
561 DNSServiceRef sdref = userdata;
562 char host_name_fixed[AVAHI_DOMAIN_NAME_MAX];
566 assert(sdref->n_ref >= 1);
568 host_name = add_trailing_dot(host_name, host_name_fixed, sizeof(host_name_fixed));
571 case AVAHI_RESOLVER_FOUND: {
573 char full_name[AVAHI_DOMAIN_NAME_MAX];
578 if ((p = avahi_new0(char, (l = avahi_string_list_serialize(txt, NULL, 0))+1)))
579 avahi_string_list_serialize(txt, p, l);
581 ret = avahi_service_name_join(full_name, sizeof(full_name), name, type, domain);
582 assert(ret == AVAHI_OK);
584 strcat(full_name, ".");
586 sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_NoError, full_name, host_name, htons(port), l, p, sdref->context);
592 case AVAHI_RESOLVER_FAILURE:
593 sdref->service_resolver_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), NULL, NULL, 0, 0, NULL, sdref->context);
598 DNSServiceErrorType DNSSD_API DNSServiceResolve(
599 DNSServiceRef *ret_sdref,
600 DNSServiceFlags flags,
605 DNSServiceResolveReply callback,
608 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
610 DNSServiceRef sdref = NULL;
611 AvahiIfIndex ifindex;
621 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0) {
622 AVAHI_WARN_UNSUPPORTED;
623 return kDNSServiceErr_Unsupported;
626 if (!(sdref = sdref_new()))
627 return kDNSServiceErr_Unknown;
629 sdref->context = context;
630 sdref->service_resolver_callback = callback;
632 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
634 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), generic_client_callback, sdref, &error))) {
635 ret = map_error(error);
639 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
641 if (!(sdref->service_resolver = avahi_service_resolver_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, name, regtype, domain, AVAHI_PROTO_UNSPEC, 0, service_resolver_callback, sdref))) {
642 ret = map_error(avahi_client_errno(sdref->client));
647 ret = kDNSServiceErr_NoError;
652 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
654 if (ret != kDNSServiceErr_NoError)
655 DNSServiceRefDeallocate(sdref);
660 int DNSSD_API DNSServiceConstructFullName (
664 const char *domain) {
672 if (avahi_service_name_join(fullName, kDNSServiceMaxDomainName, service, regtype, domain) < 0)
678 static void domain_browser_callback(
679 AvahiDomainBrowser *b,
680 AvahiIfIndex interface,
681 AvahiProtocol protocol,
682 AvahiBrowserEvent event,
684 AvahiLookupResultFlags flags,
687 DNSServiceRef sdref = userdata;
688 static char domain_fixed[AVAHI_DOMAIN_NAME_MAX];
692 assert(sdref->n_ref >= 1);
694 domain = add_trailing_dot(domain, domain_fixed, sizeof(domain_fixed));
697 case AVAHI_BROWSER_NEW:
698 sdref->domain_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, domain, sdref->context);
701 case AVAHI_BROWSER_REMOVE:
702 sdref->domain_browser_callback(sdref, 0, interface, kDNSServiceErr_NoError, domain, sdref->context);
705 case AVAHI_BROWSER_FAILURE:
706 sdref->domain_browser_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), domain, sdref->context);
709 case AVAHI_BROWSER_CACHE_EXHAUSTED:
710 case AVAHI_BROWSER_ALL_FOR_NOW:
715 DNSServiceErrorType DNSSD_API DNSServiceEnumerateDomains(
716 DNSServiceRef *ret_sdref,
717 DNSServiceFlags flags,
719 DNSServiceDomainEnumReply callback,
722 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
724 DNSServiceRef sdref = NULL;
725 AvahiIfIndex ifindex;
732 if (interface == kDNSServiceInterfaceIndexLocalOnly ||
733 (flags != kDNSServiceFlagsBrowseDomains && flags != kDNSServiceFlagsRegistrationDomains)) {
734 AVAHI_WARN_UNSUPPORTED;
735 return kDNSServiceErr_Unsupported;
738 if (!(sdref = sdref_new()))
739 return kDNSServiceErr_Unknown;
741 sdref->context = context;
742 sdref->domain_browser_callback = callback;
744 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
746 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), generic_client_callback, sdref, &error))) {
747 ret = map_error(error);
751 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
753 if (!(sdref->domain_browser = avahi_domain_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, "local",
754 flags == kDNSServiceFlagsRegistrationDomains ? AVAHI_DOMAIN_BROWSER_REGISTER : AVAHI_DOMAIN_BROWSER_BROWSE,
755 0, domain_browser_callback, sdref))) {
756 ret = map_error(avahi_client_errno(sdref->client));
760 ret = kDNSServiceErr_NoError;
765 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
767 if (ret != kDNSServiceErr_NoError)
768 DNSServiceRefDeallocate(sdref);
773 static void reg_report_error(DNSServiceRef sdref, DNSServiceErrorType error) {
774 char regtype_fixed[AVAHI_DOMAIN_NAME_MAX], domain_fixed[AVAHI_DOMAIN_NAME_MAX];
775 const char *regtype, *domain;
777 assert(sdref->n_ref >= 1);
779 assert(sdref->service_register_callback);
781 regtype = add_trailing_dot(sdref->service_regtype, regtype_fixed, sizeof(regtype_fixed));
782 domain = add_trailing_dot(sdref->service_domain, domain_fixed, sizeof(domain_fixed));
784 sdref->service_register_callback(
786 sdref->service_name_chosen ? sdref->service_name_chosen : sdref->service_name,
792 static int reg_create_service(DNSServiceRef sdref) {
794 const char *real_type;
797 assert(sdref->n_ref >= 1);
799 real_type = avahi_get_type_from_subtype(sdref->service_regtype);
801 if ((ret = avahi_entry_group_add_service_strlst(
803 sdref->service_interface,
806 sdref->service_name_chosen,
807 real_type ? real_type : sdref->service_regtype,
808 sdref->service_domain,
811 sdref->service_txt)) < 0)
816 /* Create a subtype entry */
818 if (avahi_entry_group_add_service_subtype(
820 sdref->service_interface,
823 sdref->service_name_chosen,
825 sdref->service_domain,
826 sdref->service_regtype) < 0)
831 if ((ret = avahi_entry_group_commit(sdref->entry_group)) < 0)
837 static void reg_client_callback(AvahiClient *s, AvahiClientState state, void* userdata) {
838 DNSServiceRef sdref = userdata;
842 assert(sdref->n_ref >= 1);
844 /* We've not been setup completely */
845 if (!sdref->entry_group)
849 case AVAHI_CLIENT_DISCONNECTED: {
851 reg_report_error(sdref, kDNSServiceErr_NoError);
855 case AVAHI_CLIENT_S_RUNNING: {
858 if (!sdref->service_name) {
860 /* If the service name is taken from the host name, copy that */
862 avahi_free(sdref->service_name_chosen);
864 if (!(n = avahi_client_get_host_name(sdref->client))) {
865 reg_report_error(sdref, map_error(avahi_client_errno(sdref->client)));
869 if (!(sdref->service_name_chosen = avahi_strdup(n))) {
870 reg_report_error(sdref, kDNSServiceErr_NoMemory);
875 /* Register the service */
877 if ((ret = reg_create_service(sdref)) < 0) {
878 reg_report_error(sdref, map_error(ret));
885 case AVAHI_CLIENT_S_COLLISION:
887 /* Remove our entry */
888 avahi_entry_group_reset(sdref->entry_group);
892 case AVAHI_CLIENT_S_INVALID:
893 case AVAHI_CLIENT_S_REGISTERING:
900 static void reg_entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, void *userdata) {
901 DNSServiceRef sdref = userdata;
906 case AVAHI_ENTRY_GROUP_ESTABLISHED:
907 /* Inform the user */
908 reg_report_error(sdref, kDNSServiceErr_NoError);
912 case AVAHI_ENTRY_GROUP_COLLISION: {
916 /* Remove our entry */
917 avahi_entry_group_reset(sdref->entry_group);
919 assert(sdref->service_name_chosen);
921 /* Pick a new name */
922 if (!(n = avahi_alternative_service_name(sdref->service_name_chosen))) {
923 reg_report_error(sdref, kDNSServiceErr_NoMemory);
926 avahi_free(sdref->service_name_chosen);
927 sdref->service_name_chosen = n;
929 /* Register the service with that new name */
930 if ((ret = reg_create_service(sdref)) < 0) {
931 reg_report_error(sdref, map_error(ret));
938 case AVAHI_ENTRY_GROUP_REGISTERING:
939 case AVAHI_ENTRY_GROUP_UNCOMMITED:
945 DNSServiceErrorType DNSSD_API DNSServiceRegister (
946 DNSServiceRef *ret_sdref,
947 DNSServiceFlags flags,
955 const void *txtRecord,
956 DNSServiceRegisterReply callback,
959 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
961 DNSServiceRef sdref = NULL;
969 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags) {
970 AVAHI_WARN_UNSUPPORTED;
971 return kDNSServiceErr_Unsupported;
974 if (!(sdref = sdref_new()))
975 return kDNSServiceErr_Unknown;
977 sdref->context = context;
978 sdref->service_register_callback = callback;
980 sdref->service_name = avahi_strdup(name);
981 sdref->service_regtype = regtype ? avahi_normalize_name_strdup(regtype) : NULL;
982 sdref->service_domain = domain ? avahi_normalize_name_strdup(domain) : NULL;
983 sdref->service_host = host ? avahi_normalize_name_strdup(host) : NULL;
984 sdref->service_interface = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
985 sdref->service_port = ntohs(port);
986 sdref->service_txt = txtRecord ? avahi_string_list_parse(txtRecord, txtLen) : NULL;
988 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
990 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), reg_client_callback, sdref, &error))) {
991 ret = map_error(error);
995 if (!sdref->service_domain) {
998 if (!(d = avahi_client_get_domain_name(sdref->client))) {
999 ret = map_error(avahi_client_errno(sdref->client));
1003 if (!(sdref->service_domain = avahi_strdup(d))) {
1004 ret = kDNSServiceErr_NoMemory;
1009 if (!(sdref->entry_group = avahi_entry_group_new(sdref->client, reg_entry_group_callback, sdref))) {
1010 ret = map_error(avahi_client_errno(sdref->client));
1014 if (avahi_client_get_state(sdref->client) == AVAHI_CLIENT_S_RUNNING) {
1017 if (sdref->service_name)
1018 n = sdref->service_name;
1020 if (!(n = avahi_client_get_host_name(sdref->client))) {
1021 ret = map_error(avahi_client_errno(sdref->client));
1026 if (!(sdref->service_name_chosen = avahi_strdup(n))) {
1027 ret = kDNSServiceErr_NoMemory;
1032 if ((error = reg_create_service(sdref)) < 0) {
1033 ret = map_error(error);
1038 ret = kDNSServiceErr_NoError;
1043 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
1045 if (ret != kDNSServiceErr_NoError)
1046 DNSServiceRefDeallocate(sdref);