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
28 #include <avahi-common/domain.h>
29 #include <avahi-common/malloc.h>
30 #include <avahi-common/error.h>
35 struct AvahiSServiceBrowser {
40 AvahiSRecordBrowser *record_browser;
42 AvahiSServiceBrowserCallback callback;
45 AVAHI_LLIST_FIELDS(AvahiSServiceBrowser, browser);
48 static void record_browser_callback(
49 AvahiSRecordBrowser*rr,
50 AvahiIfIndex interface,
51 AvahiProtocol protocol,
52 AvahiBrowserEvent event,
54 AvahiLookupResultFlags flags,
57 AvahiSServiceBrowser *b = userdata;
58 char *n = NULL, *c = NULL, *s = NULL;
66 assert(record->key->type == AVAHI_DNS_TYPE_PTR);
68 c = n = avahi_normalize_name(record->data.ptr.name);
70 if (!(avahi_unescape_label((const char**) &c, service, sizeof(service))))
73 for (s = e = c; *c == '_';) {
86 if (!avahi_domain_equal(c, b->domain_name))
90 b->callback(b, interface, protocol, event, record ? service : NULL, s, c, flags, b->userdata);
96 avahi_log_warn("Invalid service '%s'", n);
100 AvahiSServiceBrowser *avahi_s_service_browser_new(
102 AvahiIfIndex interface,
103 AvahiProtocol protocol,
104 const char *service_type,
106 AvahiLookupFlags flags,
107 AvahiSServiceBrowserCallback callback,
110 AvahiSServiceBrowser *b;
116 assert(service_type);
118 if (!avahi_is_valid_service_type(service_type)) {
119 avahi_server_set_errno(server, AVAHI_ERR_INVALID_SERVICE_TYPE);
123 if (domain && !avahi_is_valid_domain_name(domain)) {
124 avahi_server_set_errno(server, AVAHI_ERR_INVALID_DOMAIN_NAME);
129 domain = server->domain_name;
131 if (!AVAHI_VALID_FLAGS(flags, AVAHI_LOOKUP_USE_WIDE_AREA|AVAHI_LOOKUP_USE_MULTICAST)) {
132 avahi_server_set_errno(server, AVAHI_ERR_INVALID_FLAGS);
136 if (!(b = avahi_new(AvahiSServiceBrowser, 1))) {
137 avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY);
142 b->domain_name = avahi_normalize_name(domain);
143 b->service_type = avahi_normalize_name(service_type);
144 b->callback = callback;
145 b->userdata = userdata;
146 AVAHI_LLIST_PREPEND(AvahiSServiceBrowser, browser, server->service_browsers, b);
148 n = avahi_strdup_printf("%s.%s", b->service_type, b->domain_name);
149 k = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR);
152 b->record_browser = avahi_s_record_browser_new(server, interface, protocol, k, flags, record_browser_callback, b);
156 if (!b->record_browser) {
157 avahi_s_service_browser_free(b);
164 void avahi_s_service_browser_free(AvahiSServiceBrowser *b) {
167 AVAHI_LLIST_REMOVE(AvahiSServiceBrowser, browser, b->server->service_browsers, b);
169 if (b->record_browser)
170 avahi_s_record_browser_free(b->record_browser);
172 avahi_free(b->domain_name);
173 avahi_free(b->service_type);