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>
36 #include <avahi-common/simple-watch.h>
37 #include <avahi-common/malloc.h>
38 #include <avahi-common/error.h>
39 #include <avahi-common/domain.h>
40 #include <avahi-common/alternative.h>
42 #include <avahi-client/client.h>
43 #include <avahi-client/publish.h>
44 #include <avahi-client/lookup.h>
52 COMMAND_POLL_DONE = 'P',
53 COMMAND_POLL_FAILED = 'F'
56 struct _DNSServiceRef_t {
59 AvahiSimplePoll *simple_poll;
61 int thread_fd, main_fd;
66 pthread_mutex_t mutex;
69 DNSServiceBrowseReply service_browser_callback;
70 DNSServiceResolveReply service_resolver_callback;
71 DNSServiceDomainEnumReply domain_browser_callback;
72 DNSServiceRegisterReply service_register_callback;
75 AvahiServiceBrowser *service_browser;
76 AvahiServiceResolver *service_resolver;
77 AvahiDomainBrowser *domain_browser;
79 char *service_name, *service_name_chosen, *service_regtype, *service_domain, *service_host;
80 uint16_t service_port;
81 AvahiIfIndex service_interface;
82 AvahiStringList *service_txt;
84 AvahiEntryGroup *entry_group;
87 #define ASSERT_SUCCESS(r) { int __ret = (r); assert(__ret == 0); }
89 static DNSServiceErrorType map_error(int error) {
92 return kDNSServiceErr_NoError;
94 case AVAHI_ERR_BAD_STATE :
95 return kDNSServiceErr_BadState;
97 case AVAHI_ERR_INVALID_HOST_NAME:
98 case AVAHI_ERR_INVALID_DOMAIN_NAME:
99 case AVAHI_ERR_INVALID_TTL:
100 case AVAHI_ERR_IS_PATTERN:
101 case AVAHI_ERR_INVALID_RECORD:
102 case AVAHI_ERR_INVALID_SERVICE_NAME:
103 case AVAHI_ERR_INVALID_SERVICE_TYPE:
104 case AVAHI_ERR_INVALID_PORT:
105 case AVAHI_ERR_INVALID_KEY:
106 case AVAHI_ERR_INVALID_ADDRESS:
107 case AVAHI_ERR_INVALID_SERVICE_SUBTYPE:
108 return kDNSServiceErr_BadParam;
111 case AVAHI_ERR_COLLISION:
112 return kDNSServiceErr_NameConflict;
114 case AVAHI_ERR_TOO_MANY_CLIENTS:
115 case AVAHI_ERR_TOO_MANY_OBJECTS:
116 case AVAHI_ERR_TOO_MANY_ENTRIES:
117 case AVAHI_ERR_ACCESS_DENIED:
118 return kDNSServiceErr_Refused;
120 case AVAHI_ERR_INVALID_OPERATION:
121 case AVAHI_ERR_INVALID_OBJECT:
122 return kDNSServiceErr_Invalid;
124 case AVAHI_ERR_NO_MEMORY:
125 return kDNSServiceErr_NoMemory;
127 case AVAHI_ERR_INVALID_INTERFACE:
128 case AVAHI_ERR_INVALID_PROTOCOL:
129 return kDNSServiceErr_BadInterfaceIndex;
131 case AVAHI_ERR_INVALID_FLAGS:
132 return kDNSServiceErr_BadFlags;
134 case AVAHI_ERR_NOT_FOUND:
135 return kDNSServiceErr_NoSuchName;
137 case AVAHI_ERR_VERSION_MISMATCH:
138 return kDNSServiceErr_Incompatible;
140 case AVAHI_ERR_NO_NETWORK:
142 case AVAHI_ERR_INVALID_CONFIG:
143 case AVAHI_ERR_TIMEOUT:
144 case AVAHI_ERR_DBUS_ERROR:
145 case AVAHI_ERR_NOT_CONNECTED:
146 case AVAHI_ERR_NO_DAEMON:
151 return kDNSServiceErr_Unknown;
154 static const char *add_trailing_dot(const char *s, char *buf, size_t buf_len) {
161 if (s[strlen(s)-1] == '.')
164 snprintf(buf, buf_len, "%s.", s);
168 static int read_command(int fd) {
174 if ((r = read(fd, &command, 1)) != 1) {
175 fprintf(stderr, __FILE__": read() failed: %s\n", r < 0 ? strerror(errno) : "EOF");
182 static int write_command(int fd, char reply) {
185 if (write(fd, &reply, 1) != 1) {
186 fprintf(stderr, __FILE__": write() failed: %s\n", strerror(errno));
193 static int poll_func(struct pollfd *ufds, unsigned int nfds, int timeout, void *userdata) {
194 DNSServiceRef sdref = userdata;
199 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
201 /* fprintf(stderr, "pre-syscall\n"); */
202 ret = poll(ufds, nfds, timeout);
203 /* fprintf(stderr, "post-syscall\n"); */
205 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
210 static void * thread_func(void *data) {
211 DNSServiceRef sdref = data;
215 pthread_sigmask(SIG_BLOCK, &mask, NULL);
217 sdref->thread = pthread_self();
218 sdref->thread_running = 1;
223 if ((command = read_command(sdref->thread_fd)) < 0)
226 /* fprintf(stderr, "Command: %c\n", command); */
233 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
238 if ((ret = avahi_simple_poll_run(sdref->simple_poll)) < 0) {
243 fprintf(stderr, __FILE__": avahi_simple_poll_run() failed: %s\n", strerror(errno));
249 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
251 if (write_command(sdref->thread_fd, ret < 0 ? COMMAND_POLL_FAILED : COMMAND_POLL_DONE) < 0)
266 static DNSServiceRef sdref_new(void) {
267 int fd[2] = { -1, -1 };
268 DNSServiceRef sdref = NULL;
269 pthread_mutexattr_t mutex_attr;
271 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0)
274 if (!(sdref = avahi_new(struct _DNSServiceRef_t, 1)))
278 sdref->thread_fd = fd[0];
279 sdref->main_fd = fd[1];
281 sdref->client = NULL;
282 sdref->service_browser = NULL;
283 sdref->service_resolver = NULL;
284 sdref->domain_browser = NULL;
285 sdref->entry_group = NULL;
287 sdref->service_name = sdref->service_name_chosen = sdref->service_regtype = sdref->service_domain = sdref->service_host = NULL;
288 sdref->service_txt = NULL;
290 ASSERT_SUCCESS(pthread_mutexattr_init(&mutex_attr));
291 pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE);
292 ASSERT_SUCCESS(pthread_mutex_init(&sdref->mutex, &mutex_attr));
294 sdref->thread_running = 0;
296 if (!(sdref->simple_poll = avahi_simple_poll_new()))
299 avahi_simple_poll_set_func(sdref->simple_poll, poll_func, sdref);
301 /* Start simple poll */
302 if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0)
305 /* Queue an initial POLL command for the thread */
306 if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
309 if (pthread_create(&sdref->thread, NULL, thread_func, sdref) != 0)
312 sdref->thread_running = 1;
319 DNSServiceRefDeallocate(sdref);
324 static void sdref_free(DNSServiceRef sdref) {
327 if (sdref->thread_running) {
328 ASSERT_SUCCESS(write_command(sdref->main_fd, COMMAND_QUIT));
329 avahi_simple_poll_wakeup(sdref->simple_poll);
330 ASSERT_SUCCESS(pthread_join(sdref->thread, NULL));
334 avahi_client_free(sdref->client);
336 if (sdref->simple_poll)
337 avahi_simple_poll_free(sdref->simple_poll);
339 if (sdref->thread_fd >= 0)
340 close(sdref->thread_fd);
342 if (sdref->main_fd >= 0)
343 close(sdref->main_fd);
345 ASSERT_SUCCESS(pthread_mutex_destroy(&sdref->mutex));
347 avahi_free(sdref->service_name);
348 avahi_free(sdref->service_name_chosen);
349 avahi_free(sdref->service_regtype);
350 avahi_free(sdref->service_domain);
351 avahi_free(sdref->service_host);
353 avahi_string_list_free(sdref->service_txt);
358 static void sdref_ref(DNSServiceRef sdref) {
360 assert(sdref->n_ref >= 1);
365 static void sdref_unref(DNSServiceRef sdref) {
367 assert(sdref->n_ref >= 1);
369 if (--(sdref->n_ref) <= 0)
373 int DNSSD_API DNSServiceRefSockFD(DNSServiceRef sdref) {
375 assert(sdref->n_ref >= 1);
379 return sdref->main_fd;
382 DNSServiceErrorType DNSSD_API DNSServiceProcessResult(DNSServiceRef sdref) {
383 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
386 assert(sdref->n_ref >= 1);
390 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
394 /* Cleanup notification socket */
395 if (read_command(sdref->main_fd) != COMMAND_POLL_DONE)
398 if (avahi_simple_poll_dispatch(sdref->simple_poll) < 0)
401 if (sdref->n_ref > 1) /* Perhaps we should die */
403 /* Dispatch events */
404 if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0)
407 if (sdref->n_ref > 1)
409 /* Request the poll */
410 if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
413 ret = kDNSServiceErr_NoError;
419 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
424 void DNSSD_API DNSServiceRefDeallocate(DNSServiceRef sdref) {
431 static void service_browser_callback(
432 AvahiServiceBrowser *b,
433 AvahiIfIndex interface,
434 AvahiProtocol protocol,
435 AvahiBrowserEvent event,
439 AvahiLookupResultFlags flags,
442 DNSServiceRef sdref = userdata;
443 char type_fixed[AVAHI_DOMAIN_NAME_MAX], domain_fixed[AVAHI_DOMAIN_NAME_MAX];
446 assert(sdref->n_ref >= 1);
448 type = add_trailing_dot(type, type_fixed, sizeof(type_fixed));
449 domain = add_trailing_dot(domain, domain_fixed, sizeof(domain_fixed));
452 case AVAHI_BROWSER_NEW:
453 sdref->service_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context);
456 case AVAHI_BROWSER_REMOVE:
457 sdref->service_browser_callback(sdref, 0, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context);
460 case AVAHI_BROWSER_FAILURE:
461 sdref->service_browser_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), NULL, NULL, NULL, sdref->context);
464 case AVAHI_BROWSER_CACHE_EXHAUSTED:
465 case AVAHI_BROWSER_ALL_FOR_NOW:
470 static void generic_client_callback(AvahiClient *s, AvahiClientState state, void* userdata) {
471 DNSServiceRef sdref = userdata;
472 int error = kDNSServiceErr_Unknown;
476 assert(sdref->n_ref >= 1);
479 case AVAHI_CLIENT_S_FAILURE:
481 error = map_error(avahi_client_errno(s));
485 case AVAHI_CLIENT_DISCONNECTED:
487 if (sdref->service_browser_callback)
488 sdref->service_browser_callback(sdref, 0, 0, error, NULL, NULL, NULL, sdref->context);
489 else if (sdref->service_resolver_callback)
490 sdref->service_resolver_callback(sdref, 0, 0, error, NULL, NULL, 0, 0, NULL, sdref->context);
491 else if (sdref->domain_browser_callback)
492 sdref->domain_browser_callback(sdref, 0, 0, error, NULL, sdref->context);
496 case AVAHI_CLIENT_S_RUNNING:
497 case AVAHI_CLIENT_S_COLLISION:
498 case AVAHI_CLIENT_S_INVALID:
499 case AVAHI_CLIENT_S_REGISTERING:
504 DNSServiceErrorType DNSSD_API DNSServiceBrowse(
505 DNSServiceRef *ret_sdref,
506 DNSServiceFlags flags,
510 DNSServiceBrowseReply callback,
513 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
515 DNSServiceRef sdref = NULL;
516 AvahiIfIndex ifindex;
525 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0) {
526 AVAHI_WARN_UNSUPPORTED;
527 return kDNSServiceErr_Unsupported;
530 if (!(sdref = sdref_new()))
531 return kDNSServiceErr_Unknown;
533 sdref->context = context;
534 sdref->service_browser_callback = callback;
536 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
538 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), generic_client_callback, sdref, &error))) {
539 ret = map_error(error);
543 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
545 if (!(sdref->service_browser = avahi_service_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, regtype, domain, 0, service_browser_callback, sdref))) {
546 ret = map_error(avahi_client_errno(sdref->client));
550 ret = kDNSServiceErr_NoError;
555 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
557 if (ret != kDNSServiceErr_NoError)
558 DNSServiceRefDeallocate(sdref);
563 static void service_resolver_callback(
564 AvahiServiceResolver *r,
565 AvahiIfIndex interface,
566 AvahiProtocol protocol,
567 AvahiResolverEvent event,
571 const char *host_name,
572 const AvahiAddress *a,
574 AvahiStringList *txt,
575 AvahiLookupResultFlags flags,
578 DNSServiceRef sdref = userdata;
582 assert(sdref->n_ref >= 1);
585 case AVAHI_RESOLVER_FOUND: {
587 char host_name_fixed[AVAHI_DOMAIN_NAME_MAX];
588 char full_name[AVAHI_DOMAIN_NAME_MAX];
593 host_name = add_trailing_dot(host_name, host_name_fixed, sizeof(host_name_fixed));
595 if ((p = avahi_new0(char, (l = avahi_string_list_serialize(txt, NULL, 0))+1)))
596 avahi_string_list_serialize(txt, p, l);
598 ret = avahi_service_name_join(full_name, sizeof(full_name), name, type, domain);
599 assert(ret == AVAHI_OK);
601 strcat(full_name, ".");
603 sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_NoError, full_name, host_name, htons(port), l, p, sdref->context);
609 case AVAHI_RESOLVER_FAILURE:
610 sdref->service_resolver_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), NULL, NULL, 0, 0, NULL, sdref->context);
615 DNSServiceErrorType DNSSD_API DNSServiceResolve(
616 DNSServiceRef *ret_sdref,
617 DNSServiceFlags flags,
622 DNSServiceResolveReply callback,
625 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
627 DNSServiceRef sdref = NULL;
628 AvahiIfIndex ifindex;
638 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0) {
639 AVAHI_WARN_UNSUPPORTED;
640 return kDNSServiceErr_Unsupported;
643 if (!(sdref = sdref_new()))
644 return kDNSServiceErr_Unknown;
646 sdref->context = context;
647 sdref->service_resolver_callback = callback;
649 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
651 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), generic_client_callback, sdref, &error))) {
652 ret = map_error(error);
656 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
658 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))) {
659 ret = map_error(avahi_client_errno(sdref->client));
664 ret = kDNSServiceErr_NoError;
669 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
671 if (ret != kDNSServiceErr_NoError)
672 DNSServiceRefDeallocate(sdref);
677 int DNSSD_API DNSServiceConstructFullName (
681 const char *domain) {
689 if (avahi_service_name_join(fullName, kDNSServiceMaxDomainName, service, regtype, domain) < 0)
695 static void domain_browser_callback(
696 AvahiDomainBrowser *b,
697 AvahiIfIndex interface,
698 AvahiProtocol protocol,
699 AvahiBrowserEvent event,
701 AvahiLookupResultFlags flags,
704 DNSServiceRef sdref = userdata;
705 static char domain_fixed[AVAHI_DOMAIN_NAME_MAX];
709 assert(sdref->n_ref >= 1);
711 domain = add_trailing_dot(domain, domain_fixed, sizeof(domain_fixed));
714 case AVAHI_BROWSER_NEW:
715 sdref->domain_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, domain, sdref->context);
718 case AVAHI_BROWSER_REMOVE:
719 sdref->domain_browser_callback(sdref, 0, interface, kDNSServiceErr_NoError, domain, sdref->context);
722 case AVAHI_BROWSER_FAILURE:
723 sdref->domain_browser_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), domain, sdref->context);
726 case AVAHI_BROWSER_CACHE_EXHAUSTED:
727 case AVAHI_BROWSER_ALL_FOR_NOW:
732 DNSServiceErrorType DNSSD_API DNSServiceEnumerateDomains(
733 DNSServiceRef *ret_sdref,
734 DNSServiceFlags flags,
736 DNSServiceDomainEnumReply callback,
739 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
741 DNSServiceRef sdref = NULL;
742 AvahiIfIndex ifindex;
749 if (interface == kDNSServiceInterfaceIndexLocalOnly ||
750 (flags != kDNSServiceFlagsBrowseDomains && flags != kDNSServiceFlagsRegistrationDomains)) {
751 AVAHI_WARN_UNSUPPORTED;
752 return kDNSServiceErr_Unsupported;
755 if (!(sdref = sdref_new()))
756 return kDNSServiceErr_Unknown;
758 sdref->context = context;
759 sdref->domain_browser_callback = callback;
761 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
763 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), generic_client_callback, sdref, &error))) {
764 ret = map_error(error);
768 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
770 if (!(sdref->domain_browser = avahi_domain_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, "local",
771 flags == kDNSServiceFlagsRegistrationDomains ? AVAHI_DOMAIN_BROWSER_REGISTER : AVAHI_DOMAIN_BROWSER_BROWSE,
772 0, domain_browser_callback, sdref))) {
773 ret = map_error(avahi_client_errno(sdref->client));
777 ret = kDNSServiceErr_NoError;
782 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
784 if (ret != kDNSServiceErr_NoError)
785 DNSServiceRefDeallocate(sdref);
790 static void reg_report_error(DNSServiceRef sdref, DNSServiceErrorType error) {
791 char regtype_fixed[AVAHI_DOMAIN_NAME_MAX], domain_fixed[AVAHI_DOMAIN_NAME_MAX];
792 const char *regtype, *domain;
794 assert(sdref->n_ref >= 1);
796 assert(sdref->service_register_callback);
798 regtype = add_trailing_dot(sdref->service_regtype, regtype_fixed, sizeof(regtype_fixed));
799 domain = add_trailing_dot(sdref->service_domain, domain_fixed, sizeof(domain_fixed));
801 sdref->service_register_callback(
803 sdref->service_name_chosen ? sdref->service_name_chosen : sdref->service_name,
809 static int reg_create_service(DNSServiceRef sdref) {
811 const char *real_type;
814 assert(sdref->n_ref >= 1);
816 real_type = avahi_get_type_from_subtype(sdref->service_regtype);
818 if ((ret = avahi_entry_group_add_service_strlst(
820 sdref->service_interface,
823 sdref->service_name_chosen,
824 real_type ? real_type : sdref->service_regtype,
825 sdref->service_domain,
828 sdref->service_txt)) < 0)
833 /* Create a subtype entry */
835 if (avahi_entry_group_add_service_subtype(
837 sdref->service_interface,
840 sdref->service_name_chosen,
842 sdref->service_domain,
843 sdref->service_regtype) < 0)
848 if ((ret = avahi_entry_group_commit(sdref->entry_group)) < 0)
854 static void reg_client_callback(AvahiClient *s, AvahiClientState state, void* userdata) {
855 DNSServiceRef sdref = userdata;
859 assert(sdref->n_ref >= 1);
861 /* We've not been setup completely */
862 if (!sdref->entry_group)
866 case AVAHI_CLIENT_DISCONNECTED:
867 reg_report_error(sdref, kDNSServiceErr_Unknown);
870 case AVAHI_CLIENT_S_FAILURE:
871 reg_report_error(sdref, map_error(avahi_client_errno(s)));
874 case AVAHI_CLIENT_S_RUNNING: {
877 if (!sdref->service_name) {
879 /* If the service name is taken from the host name, copy that */
881 avahi_free(sdref->service_name_chosen);
882 sdref->service_name_chosen = NULL;
884 if (!(n = avahi_client_get_host_name(sdref->client))) {
885 reg_report_error(sdref, map_error(avahi_client_errno(sdref->client)));
889 if (!(sdref->service_name_chosen = avahi_strdup(n))) {
890 reg_report_error(sdref, kDNSServiceErr_NoMemory);
895 /* Register the service */
897 if ((ret = reg_create_service(sdref)) < 0) {
898 reg_report_error(sdref, map_error(ret));
905 case AVAHI_CLIENT_S_COLLISION:
907 /* Remove our entry */
908 avahi_entry_group_reset(sdref->entry_group);
912 case AVAHI_CLIENT_S_INVALID:
913 case AVAHI_CLIENT_S_REGISTERING:
920 static void reg_entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, void *userdata) {
921 DNSServiceRef sdref = userdata;
926 case AVAHI_ENTRY_GROUP_ESTABLISHED:
927 /* Inform the user */
928 reg_report_error(sdref, kDNSServiceErr_NoError);
932 case AVAHI_ENTRY_GROUP_COLLISION: {
936 /* Remove our entry */
937 avahi_entry_group_reset(sdref->entry_group);
939 assert(sdref->service_name_chosen);
941 /* Pick a new name */
942 if (!(n = avahi_alternative_service_name(sdref->service_name_chosen))) {
943 reg_report_error(sdref, kDNSServiceErr_NoMemory);
946 avahi_free(sdref->service_name_chosen);
947 sdref->service_name_chosen = n;
949 /* Register the service with that new name */
950 if ((ret = reg_create_service(sdref)) < 0) {
951 reg_report_error(sdref, map_error(ret));
958 case AVAHI_ENTRY_GROUP_REGISTERING:
959 case AVAHI_ENTRY_GROUP_UNCOMMITED:
963 case AVAHI_ENTRY_GROUP_FAILURE:
964 /* Inform the user */
965 reg_report_error(sdref, map_error(avahi_client_errno(sdref->client)));
971 DNSServiceErrorType DNSSD_API DNSServiceRegister (
972 DNSServiceRef *ret_sdref,
973 DNSServiceFlags flags,
981 const void *txtRecord,
982 DNSServiceRegisterReply callback,
985 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
987 DNSServiceRef sdref = NULL;
995 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags) {
996 AVAHI_WARN_UNSUPPORTED;
997 return kDNSServiceErr_Unsupported;
1000 if (!(sdref = sdref_new()))
1001 return kDNSServiceErr_Unknown;
1003 sdref->context = context;
1004 sdref->service_register_callback = callback;
1006 sdref->service_name = avahi_strdup(name);
1007 sdref->service_regtype = regtype ? avahi_normalize_name_strdup(regtype) : NULL;
1008 sdref->service_domain = domain ? avahi_normalize_name_strdup(domain) : NULL;
1009 sdref->service_host = host ? avahi_normalize_name_strdup(host) : NULL;
1010 sdref->service_interface = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
1011 sdref->service_port = ntohs(port);
1012 sdref->service_txt = txtRecord && txtLen > 0 ? avahi_string_list_parse(txtRecord, txtLen) : NULL;
1014 /* Some OOM checking would be cool here */
1016 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
1018 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), reg_client_callback, sdref, &error))) {
1019 ret = map_error(error);
1023 if (!sdref->service_domain) {
1026 if (!(d = avahi_client_get_domain_name(sdref->client))) {
1027 ret = map_error(avahi_client_errno(sdref->client));
1031 if (!(sdref->service_domain = avahi_strdup(d))) {
1032 ret = kDNSServiceErr_NoMemory;
1037 if (!(sdref->entry_group = avahi_entry_group_new(sdref->client, reg_entry_group_callback, sdref))) {
1038 ret = map_error(avahi_client_errno(sdref->client));
1042 if (avahi_client_get_state(sdref->client) == AVAHI_CLIENT_S_RUNNING) {
1045 if (sdref->service_name)
1046 n = sdref->service_name;
1048 if (!(n = avahi_client_get_host_name(sdref->client))) {
1049 ret = map_error(avahi_client_errno(sdref->client));
1054 if (!(sdref->service_name_chosen = avahi_strdup(n))) {
1055 ret = kDNSServiceErr_NoMemory;
1060 if ((error = reg_create_service(sdref)) < 0) {
1061 ret = map_error(error);
1066 ret = kDNSServiceErr_NoError;
1071 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
1073 if (ret != kDNSServiceErr_NoError)
1074 DNSServiceRefDeallocate(sdref);