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>
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 return kDNSServiceErr_BadParam;
105 case AVAHI_ERR_LOCAL_COLLISION:
106 return kDNSServiceErr_NameConflict;
108 case AVAHI_ERR_TOO_MANY_CLIENTS:
109 case AVAHI_ERR_TOO_MANY_OBJECTS:
110 case AVAHI_ERR_TOO_MANY_ENTRIES:
111 case AVAHI_ERR_ACCESS_DENIED:
112 return kDNSServiceErr_Refused;
114 case AVAHI_ERR_INVALID_OPERATION:
115 case AVAHI_ERR_INVALID_OBJECT:
116 return kDNSServiceErr_Invalid;
118 case AVAHI_ERR_NO_MEMORY:
119 return kDNSServiceErr_NoMemory;
121 case AVAHI_ERR_INVALID_INTERFACE:
122 case AVAHI_ERR_INVALID_PROTOCOL:
123 return kDNSServiceErr_BadInterfaceIndex;
125 case AVAHI_ERR_INVALID_FLAGS:
126 return kDNSServiceErr_BadFlags;
128 case AVAHI_ERR_NOT_FOUND:
129 return kDNSServiceErr_NoSuchName;
131 case AVAHI_ERR_VERSION_MISMATCH:
132 return kDNSServiceErr_Incompatible;
134 case AVAHI_ERR_NO_NETWORK:
136 case AVAHI_ERR_INVALID_CONFIG:
137 case AVAHI_ERR_TIMEOUT:
138 case AVAHI_ERR_DBUS_ERROR:
139 case AVAHI_ERR_NOT_CONNECTED:
140 case AVAHI_ERR_NO_DAEMON:
145 return kDNSServiceErr_Unknown;
148 static const char *add_trailing_dot(const char *s, char *buf, size_t buf_len) {
155 if (s[strlen(s)-1] == '.')
158 snprintf(buf, buf_len, "%s.", s);
162 static int read_command(int fd) {
168 if ((r = read(fd, &command, 1)) != 1) {
169 fprintf(stderr, __FILE__": read() failed: %s\n", r < 0 ? strerror(errno) : "EOF");
176 static int write_command(int fd, char reply) {
179 if (write(fd, &reply, 1) != 1) {
180 fprintf(stderr, __FILE__": write() failed: %s\n", strerror(errno));
187 static int poll_func(struct pollfd *ufds, unsigned int nfds, int timeout, void *userdata) {
188 DNSServiceRef sdref = userdata;
193 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
195 /* fprintf(stderr, "pre-syscall\n"); */
196 ret = poll(ufds, nfds, timeout);
197 /* fprintf(stderr, "post-syscall\n"); */
199 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
204 static void * thread_func(void *data) {
205 DNSServiceRef sdref = data;
209 pthread_sigmask(SIG_BLOCK, &mask, NULL);
211 sdref->thread = pthread_self();
212 sdref->thread_running = 1;
217 if ((command = read_command(sdref->thread_fd)) < 0)
220 /* fprintf(stderr, "Command: %c\n", command); */
226 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 if (write_command(sdref->thread_fd, COMMAND_POLLED) < 0) {
236 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
240 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
253 static DNSServiceRef sdref_new(void) {
254 int fd[2] = { -1, -1 };
255 DNSServiceRef sdref = NULL;
256 pthread_mutexattr_t mutex_attr;
258 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0)
261 if (!(sdref = avahi_new(struct _DNSServiceRef_t, 1)))
265 sdref->thread_fd = fd[0];
266 sdref->main_fd = fd[1];
268 sdref->client = NULL;
269 sdref->service_browser = NULL;
270 sdref->service_resolver = NULL;
271 sdref->domain_browser = NULL;
272 sdref->entry_group = NULL;
274 sdref->service_name = sdref->service_name_chosen = sdref->service_regtype = sdref->service_domain = sdref->service_host = NULL;
275 sdref->service_txt = NULL;
277 ASSERT_SUCCESS(pthread_mutexattr_init(&mutex_attr));
278 pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE);
279 ASSERT_SUCCESS(pthread_mutex_init(&sdref->mutex, NULL));
281 sdref->thread_running = 0;
283 if (!(sdref->simple_poll = avahi_simple_poll_new()))
286 avahi_simple_poll_set_func(sdref->simple_poll, poll_func, sdref);
288 /* Start simple poll */
289 if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0)
292 /* Queue a initiall POLL command for the thread */
293 if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
296 if (pthread_create(&sdref->thread, NULL, thread_func, sdref) != 0)
299 sdref->thread_running = 1;
306 DNSServiceRefDeallocate(sdref);
311 static void sdref_free(DNSServiceRef sdref) {
314 if (sdref->thread_running) {
315 write_command(sdref->main_fd, COMMAND_QUIT);
316 avahi_simple_poll_wakeup(sdref->simple_poll);
317 pthread_join(sdref->thread, NULL);
321 avahi_client_free(sdref->client);
323 if (sdref->thread_fd >= 0)
324 close(sdref->thread_fd);
326 if (sdref->main_fd >= 0)
327 close(sdref->main_fd);
329 if (sdref->simple_poll)
330 avahi_simple_poll_free(sdref->simple_poll);
332 pthread_mutex_destroy(&sdref->mutex);
334 avahi_free(sdref->service_name);
335 avahi_free(sdref->service_name_chosen);
336 avahi_free(sdref->service_regtype);
337 avahi_free(sdref->service_domain);
338 avahi_free(sdref->service_host);
340 avahi_string_list_free(sdref->service_txt);
345 static void sdref_ref(DNSServiceRef sdref) {
347 assert(sdref->n_ref >= 1);
352 static void sdref_unref(DNSServiceRef sdref) {
354 assert(sdref->n_ref >= 1);
356 if (--(sdref->n_ref) <= 0)
360 int DNSSD_API DNSServiceRefSockFD(DNSServiceRef sdref) {
362 assert(sdref->n_ref >= 1);
366 return sdref->main_fd;
369 DNSServiceErrorType DNSSD_API DNSServiceProcessResult(DNSServiceRef sdref) {
370 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
373 assert(sdref->n_ref >= 1);
379 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
381 /* Cleanup notification socket */
382 if (read_command(sdref->main_fd) != COMMAND_POLLED)
385 if (avahi_simple_poll_dispatch(sdref->simple_poll) < 0)
388 if (sdref->n_ref > 1) /* Perhaps we should die */
390 /* Dispatch events */
391 if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0)
394 if (sdref->n_ref > 1)
396 /* Request the poll */
397 if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
400 ret = kDNSServiceErr_NoError;
404 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
411 void DNSSD_API DNSServiceRefDeallocate(DNSServiceRef sdref) {
413 assert(sdref->n_ref >= 1);
420 static void service_browser_callback(
421 AvahiServiceBrowser *b,
422 AvahiIfIndex interface,
423 AvahiProtocol protocol,
424 AvahiBrowserEvent event,
428 AvahiLookupResultFlags flags,
431 DNSServiceRef sdref = userdata;
432 char type_fixed[AVAHI_DOMAIN_NAME_MAX], domain_fixed[AVAHI_DOMAIN_NAME_MAX];
435 assert(sdref->n_ref >= 1);
437 type = add_trailing_dot(type, type_fixed, sizeof(type_fixed));
438 domain = add_trailing_dot(domain, domain_fixed, sizeof(domain_fixed));
441 case AVAHI_BROWSER_NEW:
442 sdref->service_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context);
445 case AVAHI_BROWSER_REMOVE:
446 sdref->service_browser_callback(sdref, 0, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context);
449 case AVAHI_BROWSER_FAILURE:
450 sdref->service_browser_callback(sdref, 0, interface, kDNSServiceErr_Unknown, NULL, NULL, NULL, sdref->context);
453 case AVAHI_BROWSER_NOT_FOUND:
454 sdref->service_browser_callback(sdref, 0, interface, kDNSServiceErr_NoSuchName, NULL, NULL, NULL, sdref->context);
457 case AVAHI_BROWSER_CACHE_EXHAUSTED:
458 case AVAHI_BROWSER_ALL_FOR_NOW:
463 static void generic_client_callback(AvahiClient *s, AvahiClientState state, void* userdata) {
464 DNSServiceRef sdref = userdata;
468 assert(sdref->n_ref >= 1);
471 case AVAHI_CLIENT_DISCONNECTED: {
473 if (sdref->service_browser_callback)
474 sdref->service_browser_callback(sdref, 0, 0, kDNSServiceErr_Unknown, NULL, NULL, NULL, sdref->context);
475 else if (sdref->service_resolver_callback)
476 sdref->service_resolver_callback(sdref, 0, 0, kDNSServiceErr_Unknown, NULL, NULL, 0, 0, NULL, sdref->context);
477 else if (sdref->domain_browser_callback)
478 sdref->domain_browser_callback(sdref, 0, 0, kDNSServiceErr_Unknown, NULL, sdref->context);
483 case AVAHI_CLIENT_S_RUNNING:
484 case AVAHI_CLIENT_S_COLLISION:
485 case AVAHI_CLIENT_S_INVALID:
486 case AVAHI_CLIENT_S_REGISTERING:
491 DNSServiceErrorType DNSSD_API DNSServiceBrowse(
492 DNSServiceRef *ret_sdref,
493 DNSServiceFlags flags,
497 DNSServiceBrowseReply callback,
500 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
502 DNSServiceRef sdref = NULL;
503 AvahiIfIndex ifindex;
512 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0)
513 return kDNSServiceErr_Unsupported;
515 if (!(sdref = sdref_new()))
516 return kDNSServiceErr_Unknown;
518 sdref->context = context;
519 sdref->service_browser_callback = callback;
521 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
523 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), generic_client_callback, sdref, &error))) {
524 ret = map_error(error);
528 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
530 if (!(sdref->service_browser = avahi_service_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, regtype, domain, 0, service_browser_callback, sdref))) {
531 ret = map_error(avahi_client_errno(sdref->client));
535 ret = kDNSServiceErr_NoError;
540 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
542 if (ret != kDNSServiceErr_NoError)
543 DNSServiceRefDeallocate(sdref);
548 static void service_resolver_callback(
549 AvahiServiceResolver *r,
550 AvahiIfIndex interface,
551 AvahiProtocol protocol,
552 AvahiResolverEvent event,
556 const char *host_name,
557 const AvahiAddress *a,
559 AvahiStringList *txt,
560 AvahiLookupResultFlags flags,
563 DNSServiceRef sdref = userdata;
564 char host_name_fixed[AVAHI_DOMAIN_NAME_MAX];
568 assert(sdref->n_ref >= 1);
570 host_name = add_trailing_dot(host_name, host_name_fixed, sizeof(host_name_fixed));
573 case AVAHI_RESOLVER_FOUND: {
575 char full_name[AVAHI_DOMAIN_NAME_MAX];
580 if ((p = avahi_new0(char, (l = avahi_string_list_serialize(txt, NULL, 0))+1)))
581 avahi_string_list_serialize(txt, p, l);
583 ret = avahi_service_name_snprint(full_name, sizeof(full_name), name, type, domain);
584 assert(ret == AVAHI_OK);
586 strcat(full_name, ".");
588 sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_NoError, full_name, host_name, htons(port), l, p, sdref->context);
594 case AVAHI_RESOLVER_TIMEOUT:
595 case AVAHI_RESOLVER_NOT_FOUND:
596 sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_NoSuchName, NULL, NULL, 0, 0, NULL, sdref->context);
599 case AVAHI_RESOLVER_FAILURE:
600 sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_Unknown, NULL, NULL, 0, 0, NULL, sdref->context);
605 DNSServiceErrorType DNSSD_API DNSServiceResolve(
606 DNSServiceRef *ret_sdref,
607 DNSServiceFlags flags,
612 DNSServiceResolveReply callback,
615 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
617 DNSServiceRef sdref = NULL;
618 AvahiIfIndex ifindex;
628 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0)
629 return kDNSServiceErr_Unsupported;
631 if (!(sdref = sdref_new()))
632 return kDNSServiceErr_Unknown;
634 sdref->context = context;
635 sdref->service_resolver_callback = callback;
637 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
639 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), generic_client_callback, sdref, &error))) {
640 ret = map_error(error);
644 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
646 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))) {
647 ret = map_error(avahi_client_errno(sdref->client));
652 ret = kDNSServiceErr_NoError;
657 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
659 if (ret != kDNSServiceErr_NoError)
660 DNSServiceRefDeallocate(sdref);
665 int DNSSD_API DNSServiceConstructFullName (
669 const char *domain) {
677 if (avahi_service_name_snprint(fullName, kDNSServiceMaxDomainName, service, regtype, domain) < 0)
683 static void domain_browser_callback(
684 AvahiDomainBrowser *b,
685 AvahiIfIndex interface,
686 AvahiProtocol protocol,
687 AvahiBrowserEvent event,
689 AvahiLookupResultFlags flags,
692 DNSServiceRef sdref = userdata;
693 static char domain_fixed[AVAHI_DOMAIN_NAME_MAX];
697 assert(sdref->n_ref >= 1);
699 domain = add_trailing_dot(domain, domain_fixed, sizeof(domain_fixed));
702 case AVAHI_BROWSER_NEW:
703 sdref->domain_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, domain, sdref->context);
706 case AVAHI_BROWSER_REMOVE:
707 sdref->domain_browser_callback(sdref, 0, interface, kDNSServiceErr_NoError, domain, sdref->context);
710 case AVAHI_BROWSER_FAILURE:
711 sdref->domain_browser_callback(sdref, 0, interface, kDNSServiceErr_Unknown, domain, sdref->context);
714 case AVAHI_BROWSER_NOT_FOUND:
715 sdref->domain_browser_callback(sdref, 0, interface, kDNSServiceErr_NoSuchName, domain, sdref->context);
718 case AVAHI_BROWSER_CACHE_EXHAUSTED:
719 case AVAHI_BROWSER_ALL_FOR_NOW:
724 DNSServiceErrorType DNSSD_API DNSServiceEnumerateDomains(
725 DNSServiceRef *ret_sdref,
726 DNSServiceFlags flags,
728 DNSServiceDomainEnumReply callback,
731 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
733 DNSServiceRef sdref = NULL;
734 AvahiIfIndex ifindex;
741 if (interface == kDNSServiceInterfaceIndexLocalOnly ||
742 (flags != kDNSServiceFlagsBrowseDomains && flags != kDNSServiceFlagsRegistrationDomains))
743 return kDNSServiceErr_Unsupported;
745 if (!(sdref = sdref_new()))
746 return kDNSServiceErr_Unknown;
748 sdref->context = context;
749 sdref->domain_browser_callback = callback;
751 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
753 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), generic_client_callback, sdref, &error))) {
754 ret = map_error(error);
758 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
760 if (!(sdref->domain_browser = avahi_domain_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, NULL,
761 flags == kDNSServiceFlagsRegistrationDomains ? AVAHI_DOMAIN_BROWSER_REGISTER : AVAHI_DOMAIN_BROWSER_BROWSE,
762 0, domain_browser_callback, sdref))) {
763 ret = map_error(avahi_client_errno(sdref->client));
767 ret = kDNSServiceErr_NoError;
772 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
774 if (ret != kDNSServiceErr_NoError)
775 DNSServiceRefDeallocate(sdref);
780 static void reg_report_error(DNSServiceRef sdref, DNSServiceErrorType error) {
781 char regtype_fixed[AVAHI_DOMAIN_NAME_MAX], domain_fixed[AVAHI_DOMAIN_NAME_MAX];
782 const char *regtype, *domain;
784 assert(sdref->n_ref >= 1);
786 assert(sdref->service_register_callback);
788 regtype = add_trailing_dot(sdref->service_regtype, regtype_fixed, sizeof(regtype_fixed));
789 domain = add_trailing_dot(sdref->service_domain, domain_fixed, sizeof(domain_fixed));
791 sdref->service_register_callback(
793 sdref->service_name_chosen ? sdref->service_name_chosen : sdref->service_name,
799 static int reg_create_service(DNSServiceRef sdref) {
802 assert(sdref->n_ref >= 1);
804 if ((ret = avahi_entry_group_add_service_strlst(
806 sdref->service_interface,
809 sdref->service_name_chosen,
810 sdref->service_regtype,
811 sdref->service_domain,
814 sdref->service_txt)) < 0)
817 if ((ret = avahi_entry_group_commit(sdref->entry_group)) < 0)
823 static void reg_client_callback(AvahiClient *s, AvahiClientState state, void* userdata) {
824 DNSServiceRef sdref = userdata;
828 assert(sdref->n_ref >= 1);
830 /* We've not been setup completely */
831 if (!sdref->entry_group)
835 case AVAHI_CLIENT_DISCONNECTED: {
837 reg_report_error(sdref, kDNSServiceErr_NoError);
841 case AVAHI_CLIENT_S_RUNNING: {
844 if (!sdref->service_name) {
846 /* If the service name is taken from the host name, copy that */
848 avahi_free(sdref->service_name_chosen);
850 if (!(n = avahi_client_get_host_name(sdref->client))) {
851 reg_report_error(sdref, map_error(avahi_client_errno(sdref->client)));
855 if (!(sdref->service_name_chosen = avahi_strdup(n))) {
856 reg_report_error(sdref, kDNSServiceErr_NoMemory);
861 /* Register the service */
863 if ((ret = reg_create_service(sdref)) < 0) {
864 reg_report_error(sdref, map_error(ret));
871 case AVAHI_CLIENT_S_COLLISION:
873 /* Remove our entry */
874 avahi_entry_group_reset(sdref->entry_group);
878 case AVAHI_CLIENT_S_INVALID:
879 case AVAHI_CLIENT_S_REGISTERING:
886 static void reg_entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, void *userdata) {
887 DNSServiceRef sdref = userdata;
892 case AVAHI_ENTRY_GROUP_ESTABLISHED:
893 /* Inform the user */
894 reg_report_error(sdref, kDNSServiceErr_NoError);
898 case AVAHI_ENTRY_GROUP_COLLISION: {
902 /* Remove our entry */
903 avahi_entry_group_reset(sdref->entry_group);
905 assert(sdref->service_name_chosen);
907 /* Pick a new name */
908 if (!(n = avahi_alternative_service_name(sdref->service_name_chosen))) {
909 reg_report_error(sdref, kDNSServiceErr_NoMemory);
912 avahi_free(sdref->service_name_chosen);
913 sdref->service_name_chosen = n;
915 /* Register the service with that new name */
916 if ((ret = reg_create_service(sdref)) < 0) {
917 reg_report_error(sdref, map_error(ret));
924 case AVAHI_ENTRY_GROUP_REGISTERING:
925 case AVAHI_ENTRY_GROUP_UNCOMMITED:
931 DNSServiceErrorType DNSSD_API DNSServiceRegister (
932 DNSServiceRef *ret_sdref,
933 DNSServiceFlags flags,
941 const void *txtRecord,
942 DNSServiceRegisterReply callback,
945 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
947 DNSServiceRef sdref = NULL;
955 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags)
956 return kDNSServiceErr_Unsupported;
958 if (!(sdref = sdref_new()))
959 return kDNSServiceErr_Unknown;
961 sdref->context = context;
962 sdref->service_register_callback = callback;
964 sdref->service_name = avahi_strdup(name);
965 sdref->service_regtype = regtype ? avahi_normalize_name(regtype) : NULL;
966 sdref->service_domain = domain ? avahi_normalize_name(domain) : NULL;
967 sdref->service_host = host ? avahi_normalize_name(host) : NULL;
968 sdref->service_interface = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
969 sdref->service_port = ntohs(port);
970 sdref->service_txt = txtRecord ? avahi_string_list_parse(txtRecord, txtLen) : NULL;
972 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
974 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), reg_client_callback, sdref, &error))) {
975 ret = map_error(error);
979 if (!sdref->service_domain) {
982 if (!(d = avahi_client_get_domain_name(sdref->client))) {
983 ret = map_error(avahi_client_errno(sdref->client));
987 if (!(sdref->service_domain = avahi_strdup(d))) {
988 ret = kDNSServiceErr_NoMemory;
993 if (!(sdref->entry_group = avahi_entry_group_new(sdref->client, reg_entry_group_callback, sdref))) {
994 ret = map_error(avahi_client_errno(sdref->client));
998 if (avahi_client_get_state(sdref->client) == AVAHI_CLIENT_S_RUNNING) {
1001 if (sdref->service_name)
1002 n = sdref->service_name;
1004 if (!(n = avahi_client_get_host_name(sdref->client))) {
1005 ret = map_error(avahi_client_errno(sdref->client));
1010 if (!(sdref->service_name_chosen = avahi_strdup(n))) {
1011 ret = kDNSServiceErr_NoMemory;
1016 if ((error = reg_create_service(sdref)) < 0) {
1017 ret = map_error(error);
1022 ret = kDNSServiceErr_NoError;
1027 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
1029 if (ret != kDNSServiceErr_NoError)
1030 DNSServiceRefDeallocate(sdref);