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 <sys/types.h>
37 #include <sys/socket.h>
39 #include <avahi-common/simple-watch.h>
40 #include <avahi-common/malloc.h>
41 #include <avahi-common/error.h>
42 #include <avahi-common/domain.h>
43 #include <avahi-common/alternative.h>
45 #include <avahi-client/client.h>
46 #include <avahi-client/publish.h>
47 #include <avahi-client/lookup.h>
55 COMMAND_POLL_DONE = 'P',
56 COMMAND_POLL_FAILED = 'F'
59 struct _DNSServiceRef_t {
62 AvahiSimplePoll *simple_poll;
64 int thread_fd, main_fd;
69 pthread_mutex_t mutex;
72 DNSServiceBrowseReply service_browser_callback;
73 DNSServiceResolveReply service_resolver_callback;
74 DNSServiceDomainEnumReply domain_browser_callback;
75 DNSServiceRegisterReply service_register_callback;
78 AvahiServiceBrowser *service_browser;
79 AvahiServiceResolver *service_resolver;
80 AvahiDomainBrowser *domain_browser;
82 char *service_name, *service_name_chosen, *service_regtype, *service_domain, *service_host;
83 uint16_t service_port;
84 AvahiIfIndex service_interface;
85 AvahiStringList *service_txt;
87 AvahiEntryGroup *entry_group;
90 #define ASSERT_SUCCESS(r) { int __ret = (r); assert(__ret == 0); }
92 static DNSServiceErrorType map_error(int error) {
95 return kDNSServiceErr_NoError;
97 case AVAHI_ERR_BAD_STATE :
98 return kDNSServiceErr_BadState;
100 case AVAHI_ERR_INVALID_HOST_NAME:
101 case AVAHI_ERR_INVALID_DOMAIN_NAME:
102 case AVAHI_ERR_INVALID_TTL:
103 case AVAHI_ERR_IS_PATTERN:
104 case AVAHI_ERR_INVALID_RECORD:
105 case AVAHI_ERR_INVALID_SERVICE_NAME:
106 case AVAHI_ERR_INVALID_SERVICE_TYPE:
107 case AVAHI_ERR_INVALID_PORT:
108 case AVAHI_ERR_INVALID_KEY:
109 case AVAHI_ERR_INVALID_ADDRESS:
110 case AVAHI_ERR_INVALID_SERVICE_SUBTYPE:
111 return kDNSServiceErr_BadParam;
114 case AVAHI_ERR_COLLISION:
115 return kDNSServiceErr_NameConflict;
117 case AVAHI_ERR_TOO_MANY_CLIENTS:
118 case AVAHI_ERR_TOO_MANY_OBJECTS:
119 case AVAHI_ERR_TOO_MANY_ENTRIES:
120 case AVAHI_ERR_ACCESS_DENIED:
121 return kDNSServiceErr_Refused;
123 case AVAHI_ERR_INVALID_OPERATION:
124 case AVAHI_ERR_INVALID_OBJECT:
125 return kDNSServiceErr_Invalid;
127 case AVAHI_ERR_NO_MEMORY:
128 return kDNSServiceErr_NoMemory;
130 case AVAHI_ERR_INVALID_INTERFACE:
131 case AVAHI_ERR_INVALID_PROTOCOL:
132 return kDNSServiceErr_BadInterfaceIndex;
134 case AVAHI_ERR_INVALID_FLAGS:
135 return kDNSServiceErr_BadFlags;
137 case AVAHI_ERR_NOT_FOUND:
138 return kDNSServiceErr_NoSuchName;
140 case AVAHI_ERR_VERSION_MISMATCH:
141 return kDNSServiceErr_Incompatible;
143 case AVAHI_ERR_NO_NETWORK:
145 case AVAHI_ERR_INVALID_CONFIG:
146 case AVAHI_ERR_TIMEOUT:
147 case AVAHI_ERR_DBUS_ERROR:
148 case AVAHI_ERR_DISCONNECTED:
149 case AVAHI_ERR_NO_DAEMON:
154 return kDNSServiceErr_Unknown;
157 static const char *add_trailing_dot(const char *s, char *buf, size_t buf_len) {
164 if (s[strlen(s)-1] == '.')
167 snprintf(buf, buf_len, "%s.", s);
171 static int read_command(int fd) {
177 if ((r = read(fd, &command, 1)) != 1) {
178 fprintf(stderr, __FILE__": read() failed: %s\n", r < 0 ? strerror(errno) : "EOF");
185 static int write_command(int fd, char reply) {
188 if (write(fd, &reply, 1) != 1) {
189 fprintf(stderr, __FILE__": write() failed: %s\n", strerror(errno));
196 static int poll_func(struct pollfd *ufds, unsigned int nfds, int timeout, void *userdata) {
197 DNSServiceRef sdref = userdata;
202 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
204 /* fprintf(stderr, "pre-syscall\n"); */
205 ret = poll(ufds, nfds, timeout);
206 /* fprintf(stderr, "post-syscall\n"); */
208 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
213 static void * thread_func(void *data) {
214 DNSServiceRef sdref = data;
218 pthread_sigmask(SIG_BLOCK, &mask, NULL);
220 sdref->thread = pthread_self();
221 sdref->thread_running = 1;
226 if ((command = read_command(sdref->thread_fd)) < 0)
229 /* fprintf(stderr, "Command: %c\n", command); */
236 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
241 if ((ret = avahi_simple_poll_run(sdref->simple_poll)) < 0) {
246 fprintf(stderr, __FILE__": avahi_simple_poll_run() failed: %s\n", strerror(errno));
252 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
254 if (write_command(sdref->thread_fd, ret < 0 ? COMMAND_POLL_FAILED : COMMAND_POLL_DONE) < 0)
269 static DNSServiceRef sdref_new(void) {
270 int fd[2] = { -1, -1 };
271 DNSServiceRef sdref = NULL;
272 pthread_mutexattr_t mutex_attr;
274 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0)
277 if (!(sdref = avahi_new(struct _DNSServiceRef_t, 1)))
281 sdref->thread_fd = fd[0];
282 sdref->main_fd = fd[1];
284 sdref->client = NULL;
285 sdref->service_browser = NULL;
286 sdref->service_resolver = NULL;
287 sdref->domain_browser = NULL;
288 sdref->entry_group = NULL;
290 sdref->service_name = sdref->service_name_chosen = sdref->service_regtype = sdref->service_domain = sdref->service_host = NULL;
291 sdref->service_txt = NULL;
293 ASSERT_SUCCESS(pthread_mutexattr_init(&mutex_attr));
294 pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE);
295 ASSERT_SUCCESS(pthread_mutex_init(&sdref->mutex, &mutex_attr));
297 sdref->thread_running = 0;
299 if (!(sdref->simple_poll = avahi_simple_poll_new()))
302 avahi_simple_poll_set_func(sdref->simple_poll, poll_func, sdref);
304 /* Start simple poll */
305 if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0)
308 /* Queue an initial POLL command for the thread */
309 if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
312 if (pthread_create(&sdref->thread, NULL, thread_func, sdref) != 0)
315 sdref->thread_running = 1;
322 DNSServiceRefDeallocate(sdref);
327 static void sdref_free(DNSServiceRef sdref) {
330 if (sdref->thread_running) {
331 ASSERT_SUCCESS(write_command(sdref->main_fd, COMMAND_QUIT));
332 avahi_simple_poll_wakeup(sdref->simple_poll);
333 ASSERT_SUCCESS(pthread_join(sdref->thread, NULL));
337 avahi_client_free(sdref->client);
339 if (sdref->simple_poll)
340 avahi_simple_poll_free(sdref->simple_poll);
342 if (sdref->thread_fd >= 0)
343 close(sdref->thread_fd);
345 if (sdref->main_fd >= 0)
346 close(sdref->main_fd);
348 ASSERT_SUCCESS(pthread_mutex_destroy(&sdref->mutex));
350 avahi_free(sdref->service_name);
351 avahi_free(sdref->service_name_chosen);
352 avahi_free(sdref->service_regtype);
353 avahi_free(sdref->service_domain);
354 avahi_free(sdref->service_host);
356 avahi_string_list_free(sdref->service_txt);
361 static void sdref_ref(DNSServiceRef sdref) {
363 assert(sdref->n_ref >= 1);
368 static void sdref_unref(DNSServiceRef sdref) {
370 assert(sdref->n_ref >= 1);
372 if (--(sdref->n_ref) <= 0)
376 int DNSSD_API DNSServiceRefSockFD(DNSServiceRef sdref) {
378 assert(sdref->n_ref >= 1);
382 return sdref->main_fd;
385 DNSServiceErrorType DNSSD_API DNSServiceProcessResult(DNSServiceRef sdref) {
386 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
389 assert(sdref->n_ref >= 1);
393 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
397 /* Cleanup notification socket */
398 if (read_command(sdref->main_fd) != COMMAND_POLL_DONE)
401 if (avahi_simple_poll_dispatch(sdref->simple_poll) < 0)
404 if (sdref->n_ref > 1) /* Perhaps we should die */
406 /* Dispatch events */
407 if (avahi_simple_poll_prepare(sdref->simple_poll, -1) < 0)
410 if (sdref->n_ref > 1)
412 /* Request the poll */
413 if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
416 ret = kDNSServiceErr_NoError;
422 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
427 void DNSSD_API DNSServiceRefDeallocate(DNSServiceRef sdref) {
434 static void service_browser_callback(
435 AvahiServiceBrowser *b,
436 AvahiIfIndex interface,
437 AVAHI_GCC_UNUSED AvahiProtocol protocol,
438 AvahiBrowserEvent event,
442 AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
445 DNSServiceRef sdref = userdata;
446 char type_fixed[AVAHI_DOMAIN_NAME_MAX], domain_fixed[AVAHI_DOMAIN_NAME_MAX];
449 assert(sdref->n_ref >= 1);
451 type = add_trailing_dot(type, type_fixed, sizeof(type_fixed));
452 domain = add_trailing_dot(domain, domain_fixed, sizeof(domain_fixed));
455 case AVAHI_BROWSER_NEW:
456 sdref->service_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context);
459 case AVAHI_BROWSER_REMOVE:
460 sdref->service_browser_callback(sdref, 0, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context);
463 case AVAHI_BROWSER_FAILURE:
464 sdref->service_browser_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), NULL, NULL, NULL, sdref->context);
467 case AVAHI_BROWSER_CACHE_EXHAUSTED:
468 case AVAHI_BROWSER_ALL_FOR_NOW:
473 static void generic_client_callback(AvahiClient *s, AvahiClientState state, void* userdata) {
474 DNSServiceRef sdref = userdata;
475 int error = kDNSServiceErr_Unknown;
479 assert(sdref->n_ref >= 1);
483 case AVAHI_CLIENT_FAILURE:
485 if (sdref->service_browser_callback)
486 sdref->service_browser_callback(sdref, 0, 0, error, NULL, NULL, NULL, sdref->context);
487 else if (sdref->service_resolver_callback)
488 sdref->service_resolver_callback(sdref, 0, 0, error, NULL, NULL, 0, 0, NULL, sdref->context);
489 else if (sdref->domain_browser_callback)
490 sdref->domain_browser_callback(sdref, 0, 0, error, NULL, sdref->context);
494 case AVAHI_CLIENT_S_RUNNING:
495 case AVAHI_CLIENT_S_COLLISION:
496 case AVAHI_CLIENT_S_REGISTERING:
497 case AVAHI_CLIENT_CONNECTING:
502 DNSServiceErrorType DNSSD_API DNSServiceBrowse(
503 DNSServiceRef *ret_sdref,
504 DNSServiceFlags flags,
508 DNSServiceBrowseReply callback,
511 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
513 DNSServiceRef sdref = NULL;
514 AvahiIfIndex ifindex;
522 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0) {
523 AVAHI_WARN_UNSUPPORTED;
524 return kDNSServiceErr_Unsupported;
527 if (!(sdref = sdref_new()))
528 return kDNSServiceErr_Unknown;
530 sdref->context = context;
531 sdref->service_browser_callback = callback;
533 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
535 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), 0, generic_client_callback, sdref, &error))) {
536 ret = map_error(error);
540 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
542 if (!(sdref->service_browser = avahi_service_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, regtype, domain, 0, service_browser_callback, sdref))) {
543 ret = map_error(avahi_client_errno(sdref->client));
547 ret = kDNSServiceErr_NoError;
552 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
554 if (ret != kDNSServiceErr_NoError)
555 DNSServiceRefDeallocate(sdref);
560 static void service_resolver_callback(
561 AvahiServiceResolver *r,
562 AvahiIfIndex interface,
563 AVAHI_GCC_UNUSED AvahiProtocol protocol,
564 AvahiResolverEvent event,
568 const char *host_name,
569 AVAHI_GCC_UNUSED const AvahiAddress *a,
571 AvahiStringList *txt,
572 AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
575 DNSServiceRef sdref = userdata;
579 assert(sdref->n_ref >= 1);
582 case AVAHI_RESOLVER_FOUND: {
584 char host_name_fixed[AVAHI_DOMAIN_NAME_MAX];
585 char full_name[AVAHI_DOMAIN_NAME_MAX];
590 host_name = add_trailing_dot(host_name, host_name_fixed, sizeof(host_name_fixed));
592 if ((p = avahi_new0(char, (l = avahi_string_list_serialize(txt, NULL, 0))+1)))
593 avahi_string_list_serialize(txt, p, l);
595 ret = avahi_service_name_join(full_name, sizeof(full_name), name, type, domain);
596 assert(ret == AVAHI_OK);
598 strcat(full_name, ".");
600 sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_NoError, full_name, host_name, htons(port), l, p, sdref->context);
606 case AVAHI_RESOLVER_FAILURE:
607 sdref->service_resolver_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), NULL, NULL, 0, 0, NULL, sdref->context);
612 DNSServiceErrorType DNSSD_API DNSServiceResolve(
613 DNSServiceRef *ret_sdref,
614 DNSServiceFlags flags,
619 DNSServiceResolveReply callback,
622 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
624 DNSServiceRef sdref = NULL;
625 AvahiIfIndex ifindex;
635 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags != 0) {
636 AVAHI_WARN_UNSUPPORTED;
637 return kDNSServiceErr_Unsupported;
640 if (!(sdref = sdref_new()))
641 return kDNSServiceErr_Unknown;
643 sdref->context = context;
644 sdref->service_resolver_callback = callback;
646 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
648 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), 0, generic_client_callback, sdref, &error))) {
649 ret = map_error(error);
653 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
655 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))) {
656 ret = map_error(avahi_client_errno(sdref->client));
661 ret = kDNSServiceErr_NoError;
666 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
668 if (ret != kDNSServiceErr_NoError)
669 DNSServiceRefDeallocate(sdref);
674 int DNSSD_API DNSServiceConstructFullName (
678 const char *domain) {
686 if (avahi_service_name_join(fullName, kDNSServiceMaxDomainName, service, regtype, domain) < 0)
692 static void domain_browser_callback(
693 AvahiDomainBrowser *b,
694 AvahiIfIndex interface,
695 AVAHI_GCC_UNUSED AvahiProtocol protocol,
696 AvahiBrowserEvent event,
698 AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
701 DNSServiceRef sdref = userdata;
702 static char domain_fixed[AVAHI_DOMAIN_NAME_MAX];
706 assert(sdref->n_ref >= 1);
708 domain = add_trailing_dot(domain, domain_fixed, sizeof(domain_fixed));
711 case AVAHI_BROWSER_NEW:
712 sdref->domain_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, domain, sdref->context);
715 case AVAHI_BROWSER_REMOVE:
716 sdref->domain_browser_callback(sdref, 0, interface, kDNSServiceErr_NoError, domain, sdref->context);
719 case AVAHI_BROWSER_FAILURE:
720 sdref->domain_browser_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), domain, sdref->context);
723 case AVAHI_BROWSER_CACHE_EXHAUSTED:
724 case AVAHI_BROWSER_ALL_FOR_NOW:
729 DNSServiceErrorType DNSSD_API DNSServiceEnumerateDomains(
730 DNSServiceRef *ret_sdref,
731 DNSServiceFlags flags,
733 DNSServiceDomainEnumReply callback,
736 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
738 DNSServiceRef sdref = NULL;
739 AvahiIfIndex ifindex;
746 if (interface == kDNSServiceInterfaceIndexLocalOnly ||
747 (flags != kDNSServiceFlagsBrowseDomains && flags != kDNSServiceFlagsRegistrationDomains)) {
748 AVAHI_WARN_UNSUPPORTED;
749 return kDNSServiceErr_Unsupported;
752 if (!(sdref = sdref_new()))
753 return kDNSServiceErr_Unknown;
755 sdref->context = context;
756 sdref->domain_browser_callback = callback;
758 ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
760 if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), 0, generic_client_callback, sdref, &error))) {
761 ret = map_error(error);
765 ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
767 if (!(sdref->domain_browser = avahi_domain_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, "local",
768 flags == kDNSServiceFlagsRegistrationDomains ? AVAHI_DOMAIN_BROWSER_REGISTER : AVAHI_DOMAIN_BROWSER_BROWSE,
769 0, domain_browser_callback, sdref))) {
770 ret = map_error(avahi_client_errno(sdref->client));
774 ret = kDNSServiceErr_NoError;
779 ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
781 if (ret != kDNSServiceErr_NoError)
782 DNSServiceRefDeallocate(sdref);
787 static void reg_report_error(DNSServiceRef sdref, DNSServiceErrorType error) {
788 char regtype_fixed[AVAHI_DOMAIN_NAME_MAX], domain_fixed[AVAHI_DOMAIN_NAME_MAX];
789 const char *regtype, *domain;
791 assert(sdref->n_ref >= 1);
793 assert(sdref->service_register_callback);
795 regtype = add_trailing_dot(sdref->service_regtype, regtype_fixed, sizeof(regtype_fixed));
796 domain = add_trailing_dot(sdref->service_domain, domain_fixed, sizeof(domain_fixed));
798 sdref->service_register_callback(
800 sdref->service_name_chosen ? sdref->service_name_chosen : sdref->service_name,
806 static int reg_create_service(DNSServiceRef sdref) {
808 const char *real_type;
811 assert(sdref->n_ref >= 1);
813 real_type = avahi_get_type_from_subtype(sdref->service_regtype);
815 if ((ret = avahi_entry_group_add_service_strlst(
817 sdref->service_interface,
820 sdref->service_name_chosen,
821 real_type ? real_type : sdref->service_regtype,
822 sdref->service_domain,
825 sdref->service_txt)) < 0)
830 /* Create a subtype entry */
832 if (avahi_entry_group_add_service_subtype(
834 sdref->service_interface,
837 sdref->service_name_chosen,
839 sdref->service_domain,
840 sdref->service_regtype) < 0)
845 if ((ret = avahi_entry_group_commit(sdref->entry_group)) < 0)
851 static void reg_client_callback(AvahiClient *s, AvahiClientState state, void* userdata) {
852 DNSServiceRef sdref = userdata;
856 assert(sdref->n_ref >= 1);
858 /* We've not been setup completely */
859 if (!sdref->entry_group)
863 case AVAHI_CLIENT_FAILURE:
864 reg_report_error(sdref, kDNSServiceErr_Unknown);
867 case AVAHI_CLIENT_S_RUNNING: {
870 if (!sdref->service_name) {
872 /* If the service name is taken from the host name, copy that */
874 avahi_free(sdref->service_name_chosen);
875 sdref->service_name_chosen = NULL;
877 if (!(n = avahi_client_get_host_name(sdref->client))) {
878 reg_report_error(sdref, map_error(avahi_client_errno(sdref->client)));
882 if (!(sdref->service_name_chosen = avahi_strdup(n))) {
883 reg_report_error(sdref, kDNSServiceErr_NoMemory);
888 /* Register the service */
890 if ((ret = reg_create_service(sdref)) < 0) {
891 reg_report_error(sdref, map_error(ret));
898 case AVAHI_CLIENT_S_COLLISION:
900 /* Remove our entry */
901 avahi_entry_group_reset(sdref->entry_group);
905 case AVAHI_CLIENT_CONNECTING:
906 case AVAHI_CLIENT_S_REGISTERING:
913 static void reg_entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, void *userdata) {
914 DNSServiceRef sdref = userdata;
919 case AVAHI_ENTRY_GROUP_ESTABLISHED:
920 /* Inform the user */
921 reg_report_error(sdref, kDNSServiceErr_NoError);
925 case AVAHI_ENTRY_GROUP_COLLISION: {
929 /* Remove our entry */
930 avahi_entry_group_reset(sdref->entry_group);
932 assert(sdref->service_name_chosen);
934 /* Pick a new name */
935 if (!(n = avahi_alternative_service_name(sdref->service_name_chosen))) {
936 reg_report_error(sdref, kDNSServiceErr_NoMemory);
939 avahi_free(sdref->service_name_chosen);
940 sdref->service_name_chosen = n;
942 /* Register the service with that new name */
943 if ((ret = reg_create_service(sdref)) < 0) {
944 reg_report_error(sdref, map_error(ret));
951 case AVAHI_ENTRY_GROUP_REGISTERING:
952 case AVAHI_ENTRY_GROUP_UNCOMMITED:
956 case AVAHI_ENTRY_GROUP_FAILURE:
957 /* Inform the user */
958 reg_report_error(sdref, map_error(avahi_client_errno(sdref->client)));
964 DNSServiceErrorType DNSSD_API DNSServiceRegister (
965 DNSServiceRef *ret_sdref,
966 DNSServiceFlags flags,
974 const void *txtRecord,
975 DNSServiceRegisterReply callback,
978 DNSServiceErrorType ret = kDNSServiceErr_Unknown;
980 DNSServiceRef sdref = NULL;
981 AvahiStringList *txt = NULL;
989 if (interface == kDNSServiceInterfaceIndexLocalOnly || flags) {
990 AVAHI_WARN_UNSUPPORTED;
991 return kDNSServiceErr_Unsupported;
994 if (txtRecord && txtLen > 0)
995 if (avahi_string_list_parse(txtRecord, txtLen, &txt) < 0)
996 return kDNSServiceErr_Invalid;
998 if (!(sdref = sdref_new())) {
999 avahi_string_list_free(txt);
1000 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 = txt;
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), 0, 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);