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
31 #include <avahi-client/client.h>
32 #include <avahi-common/simple-watch.h>
33 #include <avahi-common/malloc.h>
34 #include <avahi-common/error.h>
36 static AvahiSimplePoll *simple_poll = NULL;
38 static void resolve_callback(
39 AvahiServiceResolver *r,
40 AvahiIfIndex interface,
41 AvahiProtocol protocol,
42 AvahiResolverEvent event,
46 const char *host_name,
47 const AvahiAddress *address,
54 /* Called whenever a service has been resolved successfully or timed out */
56 if (event == AVAHI_RESOLVER_TIMEOUT)
57 fprintf(stderr, "Failed to resolve service '%s' of type '%s' in domain '%s'.\n", name, type, domain);
61 assert(event == AVAHI_RESOLVER_FOUND);
63 fprintf(stderr, "Service '%s' of type '%s' in domain '%s':\n", name, type, domain);
65 avahi_address_snprint(a, sizeof(a), address);
66 t = avahi_string_list_to_string(txt);
74 avahi_string_list_get_service_cookie(txt),
75 avahi_client_is_service_local(avahi_service_resolver_get_client(r), interface, protocol, name, type, domain));
79 avahi_service_resolver_free(r);
82 static void browse_callback(
83 AvahiServiceBrowser *b,
84 AvahiIfIndex interface,
85 AvahiProtocol protocol,
86 AvahiBrowserEvent event,
92 AvahiClient *c = userdata;
95 /* Called whenever a new services becomes available on the LAN or is removed from the LAN */
97 fprintf(stderr, "%s: service '%s' of type '%s' in domain '%s'\n",
98 event == AVAHI_BROWSER_NEW ? "NEW" : "REMOVED",
103 /* If it's new, let's resolve it */
104 if (event == AVAHI_BROWSER_NEW)
106 /* We ignore the returned resolver object. In the callback function
107 we free it. If the server is terminated before the callback
108 function is called the server will free the resolver for us. */
110 if (!(avahi_service_resolver_new(c, interface, protocol, name, type, domain, AVAHI_PROTO_UNSPEC, resolve_callback, c)))
111 fprintf(stderr, "Failed to resolve service '%s': %s\n", name, avahi_strerror(avahi_client_errno(c)));
114 static void client_callback(AvahiClient *c, AvahiClientState state, void * userdata) {
117 /* Called whenever the client or server state changes */
119 if (state == AVAHI_CLIENT_DISCONNECTED) {
120 fprintf(stderr, "Server connection terminated.\n");
121 avahi_simple_poll_quit(simple_poll);
125 int main(int argc, char*argv[]) {
126 AvahiClient *client = NULL;
127 AvahiServiceBrowser *sb;
131 /* Allocate main loop object */
132 if (!(simple_poll = avahi_simple_poll_new())) {
133 fprintf(stderr, "Failed to create simple poll object.\n");
137 /* Allocate a new client */
138 client = avahi_client_new(avahi_simple_poll_get(simple_poll), client_callback, NULL, &error);
140 /* Check wether creating the client object succeeded */
142 fprintf(stderr, "Failed to create client: %s\n", avahi_strerror(error));
146 /* Create the service browser */
147 if (!(sb = avahi_service_browser_new(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_http._tcp", NULL, browse_callback, client))) {
148 fprintf(stderr, "Failed to create service browser: %s\n", avahi_strerror(avahi_client_errno(client)));
152 /* Run the main loop */
154 if (avahi_simple_poll_iterate(simple_poll, -1) != 0)
163 avahi_service_browser_free(sb);
166 avahi_client_free(client);
169 avahi_simple_poll_free(simple_poll);