avahi-0.6.31/avahi-discover-standalone/main.c - nest-learning-thermostat/5.1.3/avahi - Git at Google

 /***
   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 <sys/ioctl.h>
 #include <string.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <net/if.h>
 #include <unistd.h>

 #include <gtk/gtk.h>

 #include <avahi-core/core.h>
 #include <avahi-core/lookup.h>

 #include <avahi-common/strlst.h>
 #include <avahi-common/domain.h>
 #include <avahi-common/error.h>

 #include <avahi-glib/glib-watch.h>
 #include <avahi-glib/glib-malloc.h>

 struct ServiceType;

 struct Service {
     struct ServiceType *service_type;
     gchar *service_name;
     gchar *domain_name;

     AvahiIfIndex interface;
     AvahiProtocol protocol;

     GtkTreeRowReference *tree_ref;
 };

 struct ServiceType {
     gchar *service_type;
     AvahiSServiceBrowser *browser;

     GList *services;
     GtkTreeRowReference *tree_ref;
 };

 static GtkWidget *main_window = NULL;
 static GtkTreeView *tree_view = NULL;
 static GtkTreeStore *tree_store = NULL;
 static GtkLabel *info_label = NULL;
 static AvahiServer *server = NULL;
 static AvahiSServiceTypeBrowser *service_type_browser = NULL;
 static GHashTable *service_type_hash_table = NULL;
 static AvahiSServiceResolver *service_resolver = NULL;
 static struct Service *current_service = NULL;

 static struct Service *get_service(const gchar *service_type, const gchar *service_name, const gchar*domain_name, AvahiIfIndex interface, AvahiProtocol protocol) {
     struct ServiceType *st;
     GList *l;

     if (!(st = g_hash_table_lookup(service_type_hash_table, service_type)))
         return NULL;

     for (l = st->services; l; l = l->next) {
         struct Service *s = l->data;

         if (s->interface == interface &&
             s->protocol == protocol &&
             avahi_domain_equal(s->service_name, service_name) &&
             avahi_domain_equal(s->domain_name, domain_name))
             return s;
     }

     return NULL;
 }

 static void free_service(struct Service *s) {
     GtkTreeIter iter;
     GtkTreePath *path;

     if (current_service == s) {
         current_service = NULL;

         if (service_resolver) {
             avahi_s_service_resolver_free(service_resolver);
             service_resolver = NULL;
         }

         gtk_label_set_text(info_label, "<i>Service removed</i>");
     }

     s->service_type->services = g_list_remove(s->service_type->services, s);

     if ((path = gtk_tree_row_reference_get_path(s->tree_ref))) {
         gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), &iter, path);
         gtk_tree_path_free(path);
     }

     gtk_tree_store_remove(tree_store, &iter);

     gtk_tree_row_reference_free(s->tree_ref);

     g_free(s->service_name);
     g_free(s->domain_name);
     g_free(s);
 }

 static void service_browser_callback(
     AVAHI_GCC_UNUSED AvahiSServiceBrowser *b,
     AvahiIfIndex interface,
     AvahiProtocol protocol,
     AvahiBrowserEvent event,
     const char *service_name,
     const char *service_type,
     const char *domain_name,
     AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
     AVAHI_GCC_UNUSED void* userdata) {

     if (event == AVAHI_BROWSER_NEW) {
         struct Service *s;
         GtkTreeIter iter, piter;
         GtkTreePath *path, *ppath;
         gchar iface[256];
 	char name[IF_NAMESIZE];

         s = g_new(struct Service, 1);
         s->service_name = g_strdup(service_name);
         s->domain_name = g_strdup(domain_name);
         s->interface = interface;
         s->protocol = protocol;
         s->service_type = g_hash_table_lookup(service_type_hash_table, service_type);
         g_assert(s->service_type);

         s->service_type->services = g_list_prepend(s->service_type->services, s);

         ppath = gtk_tree_row_reference_get_path(s->service_type->tree_ref);
         gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), &piter, ppath);

         snprintf(iface, sizeof(iface), "%s %s", if_indextoname(interface, name), avahi_proto_to_string(protocol));

         gtk_tree_store_append(tree_store, &iter, &piter);
         gtk_tree_store_set(tree_store, &iter, 0, s->service_name, 1, iface, 2, s, -1);

         path = gtk_tree_model_get_path(GTK_TREE_MODEL(tree_store), &iter);
         s->tree_ref = gtk_tree_row_reference_new(GTK_TREE_MODEL(tree_store), path);
         gtk_tree_path_free(path);

         gtk_tree_view_expand_row(tree_view, ppath, FALSE);
         gtk_tree_path_free(ppath);


     } else if (event == AVAHI_BROWSER_REMOVE) {
         struct Service* s;

         if ((s = get_service(service_type, service_name, domain_name, interface, protocol)))
             free_service(s);
     }
 }

 static void service_type_browser_callback(
     AVAHI_GCC_UNUSED AvahiSServiceTypeBrowser *b,
     AVAHI_GCC_UNUSED AvahiIfIndex interface,
     AVAHI_GCC_UNUSED AvahiProtocol protocol,
     AvahiBrowserEvent event,
     const char *service_type,
     const char *domain,
     AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
     AVAHI_GCC_UNUSED void * userdata) {

     struct ServiceType *st;
     GtkTreePath *path;
     GtkTreeIter iter;

     if (event != AVAHI_BROWSER_NEW)
         return;

     if (g_hash_table_lookup(service_type_hash_table, service_type))
         return;

     st = g_new(struct ServiceType, 1);
     st->service_type = g_strdup(service_type);
     st->services = NULL;

     gtk_tree_store_append(tree_store, &iter, NULL);
     gtk_tree_store_set(tree_store, &iter, 0, st->service_type, 1, "", 2, NULL, -1);

     path = gtk_tree_model_get_path(GTK_TREE_MODEL(tree_store), &iter);
     st->tree_ref = gtk_tree_row_reference_new(GTK_TREE_MODEL(tree_store), path);
     gtk_tree_path_free(path);

     g_hash_table_insert(service_type_hash_table, st->service_type, st);

     st->browser = avahi_s_service_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, st->service_type, domain, 0, service_browser_callback, NULL);
 }

 static void update_label(struct Service *s, const gchar *hostname, const AvahiAddress *a, guint16 port, AvahiStringList *txt) {
     gchar t[512], address[64], *txt_s;
     char name[IF_NAMESIZE];

     if (a && hostname) {
         char na[AVAHI_ADDRESS_STR_MAX];
         avahi_address_snprint(na, sizeof(na), a);
         snprintf(address, sizeof(address), "%s/%s:%u", hostname, na, port);

         if (txt)
             txt_s = avahi_string_list_to_string(txt);
         else
             txt_s = g_strdup("<i>empty</i>");
     } else {
         snprintf(address, sizeof(address), "<i>n/a</i>");
         txt_s = g_strdup("<i>n/a</i>");
     }

     snprintf(t, sizeof(t),
              "<b>Service Type:</b> %s\n"
              "<b>Service Name:</b> %s\n"
              "<b>Domain Name:</b> %s\n"
              "<b>Interface:</b> %s %s\n"
              "<b>Address:</b> %s\n"
              "<b>TXT Data:</b> %s",
              s->service_type->service_type,
              s->service_name,
              s->domain_name,
              if_indextoname(s->interface,name), avahi_proto_to_string(s->protocol),
              address,
              txt_s);

     gtk_label_set_markup(info_label, t);

     g_free(txt_s);
 }

 static struct Service *get_service_on_cursor(void) {
     GtkTreePath *path;
     struct Service *s;
     GtkTreeIter iter;

     gtk_tree_view_get_cursor(tree_view, &path, NULL);

     if (!path)
         return NULL;

     gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), &iter, path);
     gtk_tree_model_get(GTK_TREE_MODEL(tree_store), &iter, 2, &s, -1);
     gtk_tree_path_free(path);

     return s;
 }

 static void service_resolver_callback(
     AvahiSServiceResolver *r,
     AVAHI_GCC_UNUSED AvahiIfIndex interface,
     AVAHI_GCC_UNUSED AvahiProtocol protocol,
     AvahiResolverEvent event,
     AVAHI_GCC_UNUSED const char *name,
     AVAHI_GCC_UNUSED const char *type,
     AVAHI_GCC_UNUSED const char *domain,
     const char *host_name,
     const AvahiAddress *a,
     uint16_t port,
     AvahiStringList *txt,
     AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
     void* userdata) {

     struct Service *s;
     g_assert(r);

     if (!(s = get_service_on_cursor()) || userdata != s) {
         g_assert(r == service_resolver);
         avahi_s_service_resolver_free(service_resolver);
         service_resolver = NULL;
         return;
     }

     if (event == AVAHI_RESOLVER_FAILURE) {
         char t[256];
         snprintf(t, sizeof(t), "<i>Failed to resolve: %s.</i>", avahi_strerror(avahi_server_errno(server)));
         gtk_label_set_markup(info_label, t);
     } else if (event == AVAHI_RESOLVER_FOUND)
         update_label(s, host_name, a, port, txt);
 }

 static void tree_view_on_cursor_changed(AVAHI_GCC_UNUSED GtkTreeView *tv, AVAHI_GCC_UNUSED gpointer userdata) {
     struct Service *s;

     if (!(s = get_service_on_cursor()))
         return;

     if (service_resolver)
         avahi_s_service_resolver_free(service_resolver);

     update_label(s, NULL, NULL, 0, NULL);

     service_resolver = avahi_s_service_resolver_new(server, s->interface, s->protocol, s->service_name, s->service_type->service_type, s->domain_name, AVAHI_PROTO_UNSPEC, 0, service_resolver_callback, s);
 }

 static gboolean main_window_on_delete_event(AVAHI_GCC_UNUSED GtkWidget *widget, AVAHI_GCC_UNUSED GdkEvent *event, AVAHI_GCC_UNUSED gpointer user_data) {
     gtk_main_quit();
     return FALSE;
 }

 int main(int argc, char *argv[]) {
     GtkBuilder *ui;
     AvahiServerConfig config;
     GtkTreeViewColumn *c;
     gint error;
     AvahiGLibPoll *poll_api;

     gtk_init(&argc, &argv);

     avahi_set_allocator(avahi_glib_allocator());

     poll_api = avahi_glib_poll_new(NULL, G_PRIORITY_DEFAULT);

     ui = gtk_builder_new();
     gtk_builder_add_from_file(ui, AVAHI_INTERFACES_DIR"avahi-discover.ui", NULL);
     main_window = GTK_WIDGET(gtk_builder_get_object(ui, "main_window"));
     g_signal_connect(main_window, "delete-event", (GCallback) main_window_on_delete_event, NULL);

     tree_view = GTK_TREE_VIEW(gtk_builder_get_object(ui, "tree_view"));
     g_signal_connect(GTK_WIDGET(tree_view), "cursor-changed", (GCallback) tree_view_on_cursor_changed, NULL);

     info_label = GTK_LABEL(gtk_builder_get_object(ui, "info_label"));

     tree_store = gtk_tree_store_new(3, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER);
     gtk_tree_view_set_model(tree_view, GTK_TREE_MODEL(tree_store));
     gtk_tree_view_insert_column_with_attributes(tree_view, -1, "Name", gtk_cell_renderer_text_new(), "text", 0, NULL);
     gtk_tree_view_insert_column_with_attributes(tree_view, -1, "Interface", gtk_cell_renderer_text_new(), "text", 1, NULL);

     gtk_tree_view_column_set_resizable(c = gtk_tree_view_get_column(tree_view, 0), TRUE);
     gtk_tree_view_column_set_sizing(c, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
     gtk_tree_view_column_set_expand(c, TRUE);

     service_type_hash_table = g_hash_table_new((GHashFunc) avahi_domain_hash, (GEqualFunc) avahi_domain_equal);

     avahi_server_config_init(&config);
     config.publish_hinfo = config.publish_addresses = config.publish_domain = config.publish_workstation = FALSE;
     server = avahi_server_new(avahi_glib_poll_get(poll_api), &config, NULL, NULL, &error);
     avahi_server_config_free(&config);

     g_assert(server);

     service_type_browser = avahi_s_service_type_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, argc >= 2 ? argv[1] : NULL, 0, service_type_browser_callback, NULL);

     gtk_main();

     avahi_server_free(server);
     avahi_glib_poll_free(poll_api);

     return 0;
 }
	/***
	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 <sys/ioctl.h>
	#include <string.h>
	#include <sys/types.h>
	#include <sys/socket.h>
	#include <net/if.h>
	#include <unistd.h>

	#include <gtk/gtk.h>

	#include <avahi-core/core.h>
	#include <avahi-core/lookup.h>

	#include <avahi-common/strlst.h>
	#include <avahi-common/domain.h>
	#include <avahi-common/error.h>

	#include <avahi-glib/glib-watch.h>
	#include <avahi-glib/glib-malloc.h>

	struct ServiceType;

	struct Service {
	struct ServiceType *service_type;
	gchar *service_name;
	gchar *domain_name;

	AvahiIfIndex interface;
	AvahiProtocol protocol;

	GtkTreeRowReference *tree_ref;
	};

	struct ServiceType {
	gchar *service_type;
	AvahiSServiceBrowser *browser;

	GList *services;
	GtkTreeRowReference *tree_ref;
	};

	static GtkWidget *main_window = NULL;
	static GtkTreeView *tree_view = NULL;
	static GtkTreeStore *tree_store = NULL;
	static GtkLabel *info_label = NULL;
	static AvahiServer *server = NULL;
	static AvahiSServiceTypeBrowser *service_type_browser = NULL;
	static GHashTable *service_type_hash_table = NULL;
	static AvahiSServiceResolver *service_resolver = NULL;
	static struct Service *current_service = NULL;

	static struct Service get_service(const gchar service_type, const gchar service_name, const gchardomain_name, AvahiIfIndex interface, AvahiProtocol protocol) {
	struct ServiceType *st;
	GList *l;

	if (!(st = g_hash_table_lookup(service_type_hash_table, service_type)))
	return NULL;

	for (l = st->services; l; l = l->next) {
	struct Service *s = l->data;

	if (s->interface == interface &&
	s->protocol == protocol &&
	avahi_domain_equal(s->service_name, service_name) &&
	avahi_domain_equal(s->domain_name, domain_name))
	return s;
	}

	return NULL;
	}

	static void free_service(struct Service *s) {
	GtkTreeIter iter;
	GtkTreePath *path;

	if (current_service == s) {
	current_service = NULL;

	if (service_resolver) {
	avahi_s_service_resolver_free(service_resolver);
	service_resolver = NULL;
	}

	gtk_label_set_text(info_label, "<i>Service removed</i>");
	}

	s->service_type->services = g_list_remove(s->service_type->services, s);

	if ((path = gtk_tree_row_reference_get_path(s->tree_ref))) {
	gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), &iter, path);
	gtk_tree_path_free(path);
	}

	gtk_tree_store_remove(tree_store, &iter);

	gtk_tree_row_reference_free(s->tree_ref);

	g_free(s->service_name);
	g_free(s->domain_name);
	g_free(s);
	}

	static void service_browser_callback(
	AVAHI_GCC_UNUSED AvahiSServiceBrowser *b,
	AvahiIfIndex interface,
	AvahiProtocol protocol,
	AvahiBrowserEvent event,
	const char *service_name,
	const char *service_type,
	const char *domain_name,
	AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
	AVAHI_GCC_UNUSED void* userdata) {

	if (event == AVAHI_BROWSER_NEW) {
	struct Service *s;
	GtkTreeIter iter, piter;
	GtkTreePath path, ppath;
	gchar iface[256];
	char name[IF_NAMESIZE];

	s = g_new(struct Service, 1);
	s->service_name = g_strdup(service_name);
	s->domain_name = g_strdup(domain_name);
	s->interface = interface;
	s->protocol = protocol;
	s->service_type = g_hash_table_lookup(service_type_hash_table, service_type);
	g_assert(s->service_type);

	s->service_type->services = g_list_prepend(s->service_type->services, s);

	ppath = gtk_tree_row_reference_get_path(s->service_type->tree_ref);
	gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), &piter, ppath);

	snprintf(iface, sizeof(iface), "%s %s", if_indextoname(interface, name), avahi_proto_to_string(protocol));

	gtk_tree_store_append(tree_store, &iter, &piter);
	gtk_tree_store_set(tree_store, &iter, 0, s->service_name, 1, iface, 2, s, -1);

	path = gtk_tree_model_get_path(GTK_TREE_MODEL(tree_store), &iter);
	s->tree_ref = gtk_tree_row_reference_new(GTK_TREE_MODEL(tree_store), path);
	gtk_tree_path_free(path);

	gtk_tree_view_expand_row(tree_view, ppath, FALSE);
	gtk_tree_path_free(ppath);


	} else if (event == AVAHI_BROWSER_REMOVE) {
	struct Service* s;

	if ((s = get_service(service_type, service_name, domain_name, interface, protocol)))
	free_service(s);
	}
	}

	static void service_type_browser_callback(
	AVAHI_GCC_UNUSED AvahiSServiceTypeBrowser *b,
	AVAHI_GCC_UNUSED AvahiIfIndex interface,
	AVAHI_GCC_UNUSED AvahiProtocol protocol,
	AvahiBrowserEvent event,
	const char *service_type,
	const char *domain,
	AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
	AVAHI_GCC_UNUSED void * userdata) {

	struct ServiceType *st;
	GtkTreePath *path;
	GtkTreeIter iter;

	if (event != AVAHI_BROWSER_NEW)
	return;

	if (g_hash_table_lookup(service_type_hash_table, service_type))
	return;

	st = g_new(struct ServiceType, 1);
	st->service_type = g_strdup(service_type);
	st->services = NULL;

	gtk_tree_store_append(tree_store, &iter, NULL);
	gtk_tree_store_set(tree_store, &iter, 0, st->service_type, 1, "", 2, NULL, -1);

	path = gtk_tree_model_get_path(GTK_TREE_MODEL(tree_store), &iter);
	st->tree_ref = gtk_tree_row_reference_new(GTK_TREE_MODEL(tree_store), path);
	gtk_tree_path_free(path);

	g_hash_table_insert(service_type_hash_table, st->service_type, st);

	st->browser = avahi_s_service_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, st->service_type, domain, 0, service_browser_callback, NULL);
	}

	static void update_label(struct Service s, const gchar hostname, const AvahiAddress a, guint16 port, AvahiStringList txt) {
	gchar t[512], address[64], *txt_s;
	char name[IF_NAMESIZE];

	if (a && hostname) {
	char na[AVAHI_ADDRESS_STR_MAX];
	avahi_address_snprint(na, sizeof(na), a);
	snprintf(address, sizeof(address), "%s/%s:%u", hostname, na, port);

	if (txt)
	txt_s = avahi_string_list_to_string(txt);
	else
	txt_s = g_strdup("<i>empty</i>");
	} else {
	snprintf(address, sizeof(address), "<i>n/a</i>");
	txt_s = g_strdup("<i>n/a</i>");
	}

	snprintf(t, sizeof(t),
	"<b>Service Type:</b> %s\n"
	"<b>Service Name:</b> %s\n"
	"<b>Domain Name:</b> %s\n"
	"<b>Interface:</b> %s %s\n"
	"<b>Address:</b> %s\n"
	"<b>TXT Data:</b> %s",
	s->service_type->service_type,
	s->service_name,
	s->domain_name,
	if_indextoname(s->interface,name), avahi_proto_to_string(s->protocol),
	address,
	txt_s);

	gtk_label_set_markup(info_label, t);

	g_free(txt_s);
	}

	static struct Service *get_service_on_cursor(void) {
	GtkTreePath *path;
	struct Service *s;
	GtkTreeIter iter;

	gtk_tree_view_get_cursor(tree_view, &path, NULL);

	if (!path)
	return NULL;

	gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), &iter, path);
	gtk_tree_model_get(GTK_TREE_MODEL(tree_store), &iter, 2, &s, -1);
	gtk_tree_path_free(path);

	return s;
	}

	static void service_resolver_callback(
	AvahiSServiceResolver *r,
	AVAHI_GCC_UNUSED AvahiIfIndex interface,
	AVAHI_GCC_UNUSED AvahiProtocol protocol,
	AvahiResolverEvent event,
	AVAHI_GCC_UNUSED const char *name,
	AVAHI_GCC_UNUSED const char *type,
	AVAHI_GCC_UNUSED const char *domain,
	const char *host_name,
	const AvahiAddress *a,
	uint16_t port,
	AvahiStringList *txt,
	AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
	void* userdata) {

	struct Service *s;
	g_assert(r);

	if (!(s = get_service_on_cursor()) \|\| userdata != s) {
	g_assert(r == service_resolver);
	avahi_s_service_resolver_free(service_resolver);
	service_resolver = NULL;
	return;
	}

	if (event == AVAHI_RESOLVER_FAILURE) {
	char t[256];
	snprintf(t, sizeof(t), "<i>Failed to resolve: %s.</i>", avahi_strerror(avahi_server_errno(server)));
	gtk_label_set_markup(info_label, t);
	} else if (event == AVAHI_RESOLVER_FOUND)
	update_label(s, host_name, a, port, txt);
	}

	static void tree_view_on_cursor_changed(AVAHI_GCC_UNUSED GtkTreeView *tv, AVAHI_GCC_UNUSED gpointer userdata) {
	struct Service *s;

	if (!(s = get_service_on_cursor()))
	return;

	if (service_resolver)
	avahi_s_service_resolver_free(service_resolver);

	update_label(s, NULL, NULL, 0, NULL);

	service_resolver = avahi_s_service_resolver_new(server, s->interface, s->protocol, s->service_name, s->service_type->service_type, s->domain_name, AVAHI_PROTO_UNSPEC, 0, service_resolver_callback, s);
	}

	static gboolean main_window_on_delete_event(AVAHI_GCC_UNUSED GtkWidget widget, AVAHI_GCC_UNUSED GdkEvent event, AVAHI_GCC_UNUSED gpointer user_data) {
	gtk_main_quit();
	return FALSE;
	}

	int main(int argc, char *argv[]) {
	GtkBuilder *ui;
	AvahiServerConfig config;
	GtkTreeViewColumn *c;
	gint error;
	AvahiGLibPoll *poll_api;

	gtk_init(&argc, &argv);

	avahi_set_allocator(avahi_glib_allocator());

	poll_api = avahi_glib_poll_new(NULL, G_PRIORITY_DEFAULT);

	ui = gtk_builder_new();
	gtk_builder_add_from_file(ui, AVAHI_INTERFACES_DIR"avahi-discover.ui", NULL);
	main_window = GTK_WIDGET(gtk_builder_get_object(ui, "main_window"));
	g_signal_connect(main_window, "delete-event", (GCallback) main_window_on_delete_event, NULL);

	tree_view = GTK_TREE_VIEW(gtk_builder_get_object(ui, "tree_view"));
	g_signal_connect(GTK_WIDGET(tree_view), "cursor-changed", (GCallback) tree_view_on_cursor_changed, NULL);

	info_label = GTK_LABEL(gtk_builder_get_object(ui, "info_label"));

	tree_store = gtk_tree_store_new(3, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER);
	gtk_tree_view_set_model(tree_view, GTK_TREE_MODEL(tree_store));
	gtk_tree_view_insert_column_with_attributes(tree_view, -1, "Name", gtk_cell_renderer_text_new(), "text", 0, NULL);
	gtk_tree_view_insert_column_with_attributes(tree_view, -1, "Interface", gtk_cell_renderer_text_new(), "text", 1, NULL);

	gtk_tree_view_column_set_resizable(c = gtk_tree_view_get_column(tree_view, 0), TRUE);
	gtk_tree_view_column_set_sizing(c, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
	gtk_tree_view_column_set_expand(c, TRUE);

	service_type_hash_table = g_hash_table_new((GHashFunc) avahi_domain_hash, (GEqualFunc) avahi_domain_equal);

	avahi_server_config_init(&config);
	config.publish_hinfo = config.publish_addresses = config.publish_domain = config.publish_workstation = FALSE;
	server = avahi_server_new(avahi_glib_poll_get(poll_api), &config, NULL, NULL, &error);
	avahi_server_config_free(&config);

	g_assert(server);

	service_type_browser = avahi_s_service_type_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, argc >= 2 ? argv[1] : NULL, 0, service_type_browser_callback, NULL);

	gtk_main();

	avahi_server_free(server);
	avahi_glib_poll_free(poll_api);

	return 0;
	}