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authorLennart Poettering <lennart@poettering.net>2005-08-03 21:07:02 +0000
committerLennart Poettering <lennart@poettering.net>2005-08-03 21:07:02 +0000
commit3a625af272ee8c6f878ba4d44ed1c741a1582395 (patch)
treeee5fb1f6bff53c670cede2882bbe69d408777894 /examples/browse-services.c
parent69ea921fa92b0b23faf0a955628e3afab5117534 (diff)
* add C examples
* change doxygen to output stuff in "doxygen/" instead of "doxygen-doc/" * implement avahi_entry_group_{reset,is_empty}() and make everyone use it * move holdoff (SLEEPING) time checking from server to entry group * add preliminary error codes git-svn-id: file:///home/lennart/svn/public/avahi/trunk@216 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe
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diff --git a/examples/browse-services.c b/examples/browse-services.c
new file mode 100644
index 0000000..bb8eed8
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+++ b/examples/browse-services.c
@@ -0,0 +1,112 @@
+/* $Id$ */
+
+/***
+ This file is part of avahi.
+
+ avahi is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ avahi is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
+ Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with avahi; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <avahi-core/core.h>
+
+static GMainLoop *main_loop = NULL;
+
+static void resolve_callback(AvahiServiceResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const gchar *name,const gchar *type,const gchar *domain, const gchar *host_name, const AvahiAddress *address, guint16 port, AvahiStringList *txt, gpointer userdata) {
+ g_assert(r);
+
+ /* Called whenever a service has been resolved successfully or timed out */
+
+ if (event == AVAHI_RESOLVER_TIMEOUT)
+ g_message("Failed to resolve service '%s' of type '%s' in domain '%s'.", name, type, domain);
+ else {
+ gchar a[128], *t;
+
+ g_assert(event == AVAHI_RESOLVER_FOUND);
+
+ g_message("Service '%s' of type '%s' in domain '%s':", name, type, domain);
+
+ avahi_address_snprint(a, sizeof(a), address);
+ t = avahi_string_list_to_string(txt);
+ g_message("\t%s:%u (%s) TXT=%s", host_name, port, a, t);
+ g_free(t);
+ }
+
+ avahi_service_resolver_free(r);
+}
+
+static void browse_callback(AvahiServiceBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const gchar *name, const gchar *type, const gchar *domain, gpointer userdata) {
+ g_assert(b);
+
+ AvahiServer *s = userdata;
+
+ /* Called whenever a new services becomes available on the LAN or is removed from the LAN */
+
+ g_message("%s: service '%s' of type '%s' in domain '%s'",
+ event == AVAHI_BROWSER_NEW ? "NEW" : "REMOVED",
+ name,
+ type,
+ domain);
+
+ /* If it's new, let's resolve it */
+ if (event == AVAHI_BROWSER_NEW)
+
+ /* We ignore the returned resolver object. In the callback function
+ we free it. If the server is terminated before the callback
+ function is called the server will free the resolver for us. */
+
+ avahi_service_resolver_new(s, interface, protocol, name, type, domain, AVAHI_PROTO_UNSPEC, resolve_callback, s);
+}
+
+int main(int argc, char*argv[]) {
+ AvahiServerConfig config;
+ AvahiServer *server = NULL;
+ AvahiServiceBrowser *sb;
+
+ /* Do not publish any local records */
+ avahi_server_config_init(&config);
+ config.publish_hinfo = FALSE;
+ config.publish_addresses = FALSE;
+ config.publish_workstation = FALSE;
+ config.publish_domain = FALSE;
+
+ /* Allocate a new server */
+ server = avahi_server_new(NULL, &config, NULL, NULL);
+
+ /* Free the configuration data */
+ avahi_server_config_free(&config);
+
+ /* Create the service browser */
+ sb = avahi_service_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_http._tcp", NULL, browse_callback, server);
+
+ /* Run the main loop */
+ main_loop = g_main_loop_new(NULL, FALSE);
+ g_main_loop_run(main_loop);
+
+ /* Cleanup things */
+ if (sb)
+ avahi_service_browser_free(sb);
+
+ if (server)
+ avahi_server_free(server);
+
+ if (main_loop)
+ g_main_loop_unref(main_loop);
+
+ return 0;
+}