label = gtk_label_new (_("Highest IP address to assign:"));	gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);	gtk_table_attach (GTK_TABLE (table3), label, 0, 1, 3, 4,		GTK_FILL, GTK_FILL, GNOME_PAD, 0);	dhcp_highest_ip = gtk_entry_new ();	gtk_entry_set_text (GTK_ENTRY (dhcp_highest_ip), preferences_get_string (PREFS_FW_DHCP_HIGHEST_IP));	gtk_table_attach (GTK_TABLE (table3), dhcp_highest_ip, 1, 2, 3, 4,		GTK_FILL, GTK_FILL, GNOME_PAD, 0);	label = gtk_label_new (_("Name server:"));	gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);	gtk_table_attach (GTK_TABLE (table3), label, 0, 1, 4, 5,		GTK_FILL, GTK_FILL, GNOME_PAD, 0);	dhcp_nameserver = gtk_entry_new ();	gtk_entry_set_text (GTK_ENTRY (dhcp_nameserver), preferences_get_string (PREFS_FW_DHCP_NAMESERVER));	gtk_table_attach (GTK_TABLE (table3), dhcp_nameserver, 1, 2, 4, 5,		GTK_FILL, GTK_FILL, GNOME_PAD, 0);	/* Bind controls we need later to wizard struct */	data->dhcp_server = dhcp_server;	data->dhcp_new_config = dhcp_new_config;	data->dhcp_lowest_ip = dhcp_lowest_ip;	data->dhcp_highest_ip = dhcp_highest_ip;	data->dhcp_nameserver = dhcp_nameserver;	return table;}/* [ create_welcome_page ] * Create the contents of the welcoming screen */static GtkWidget*create_welcome_page (Wizard *data){	GtkWidget *label;	GtkWidget *image;	GtkWidget *hbox;	GtkWidget *vbox;	GdkPixbuf *pixbuf;	hbox = gtk_hbox_new (FALSE, GNOME_PAD_BIG); 	pixbuf = gdk_pixbuf_new_from_inline (-1, pengo, FALSE, NULL);	image = gtk_image_new_from_pixbuf (pixbuf);	g_object_unref (G_OBJECT(pixbuf));	gtk_box_pack_start (GTK_BOX(hbox), image, FALSE, FALSE, 0);	vbox = gtk_vbox_new (FALSE, GNOME_PAD_SMALL);	gtk_box_pack_start (GTK_BOX(hbox), vbox, FALSE, FALSE, 0);	label = gtk_label_new (NULL);	gtk_label_set_markup (GTK_LABEL (label), g_strconcat (_(		"This wizard will help you to set up a firewall for your\n"		"Linux machine. You will be asked some questions\n"		"about your network setup in order to customize the\n"		"firewall for your system.\n\n"),		"<small>", _(		"Tip: If you are uncertain of how to answer a question it is\n"		"best to use the default value supplied.\n\n"		), "</small>",		_("Please press the forward button to continue.\n"), NULL)	);	gtk_box_pack_start (GTK_BOX(vbox), label, FALSE, FALSE, 0);	return hbox;}/* [ create_finish_page ] * Create the contents of the final wizard screen */static GtkWidget*create_finish_page (Wizard *data){	FirewallStatus state;	GtkWidget *label;	GtkWidget *vbox;	GtkWidget *check_start_now;	vbox = gtk_vbox_new (FALSE, GNOME_PAD_SMALL);	label = gtk_label_new (NULL);	gtk_label_set_markup (GTK_LABEL (label), g_strconcat (		"<b>", _("The wizard is now ready to start your firewall."), "</b>",		"\n\n", _("Press the save button to continue, or the back button to review your choices."),		NULL)	);	gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0);	gtk_box_pack_start (GTK_BOX(vbox), label, FALSE, FALSE, GNOME_PAD_SMALL);	check_start_now = gtk_check_button_new_with_label (_("Start firewall now"));	gtk_box_pack_start (GTK_BOX(vbox), check_start_now, FALSE, FALSE, GNOME_PAD_SMALL);	label = gtk_label_new (NULL);	gtk_label_set_markup (GTK_LABEL (label), g_strconcat (		"<small>", _(		"Tip: If you are connecting to the firewall host remotely you might want to\n"		"defer starting the firewall until you have created additional policy."),		"</small>", NULL)	);	gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0);	gtk_box_pack_start (GTK_BOX(vbox), label, FALSE, FALSE, GNOME_PAD_SMALL);	state = status_get_state ();	/* Default to starting firewall on the first run, or if the firewall	   was already started */	if (preferences_get_bool (PREFS_FIRST_RUN) ||	    !script_exists () ||	    state == STATUS_RUNNING ||	    state == STATUS_HIT) {		gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check_start_now), TRUE);	}	data->start_firewall = check_start_now;	return vbox;}/* [ create_page ] * Create the default wizard page layout container */static GtkWidget *create_page (const char *title){	GtkWidget *label;	GtkWidget *vbox;	GtkWidget *hbox;	GtkWidget *alignment;	GtkWidget *image;	GdkPixbuf *pixbuf;	gchar *title_string;	/* create vbox */	vbox = gtk_vbox_new (FALSE, GNOME_PAD);	/* create the titlebar */	hbox = gtk_hbox_new (FALSE, GNOME_PAD_BIG);	pixbuf = gdk_pixbuf_new_from_inline (-1, logo, FALSE, NULL);	image = gtk_image_new_from_pixbuf (pixbuf);	g_object_unref (G_OBJECT(pixbuf));	gtk_box_pack_start (GTK_BOX(hbox), image, FALSE, FALSE, 0);	alignment = gtk_alignment_new (1.0, 1.0, 1.0, 1.0);	gtk_box_pack_start (GTK_BOX(hbox), alignment, TRUE, TRUE, 0);	title_string = g_strconcat ("<span size=\"xx-large\" weight=\"ultrabold\">", title ? title : "", "</span>", NULL);	label = gtk_label_new (title_string);	gtk_label_set_use_markup (GTK_LABEL(label), TRUE);	g_free (title_string);	gtk_container_add (GTK_CONTAINER(alignment), label);	//gtk_box_pack_start (GTK_BOX(hbox), label, FALSE, FALSE, 0);	/* pack the titlebar */	gtk_box_pack_start (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);	/* pack the separator */	gtk_box_pack_start (GTK_BOX(vbox), gtk_hseparator_new(), FALSE, FALSE, 0);	return vbox;}/* [ dialog_response_cb ] * Controls what happens when one of the wizard buttons are pressed * Possible page flow control code would go here */static voiddialog_response_cb (GtkDialog *dialog, int response, gpointer data){	Wizard *wizard = (Wizard *)data;	int current_page = gtk_notebook_get_current_page (GTK_NOTEBOOK(wizard->notebook));	if (response == RESPONSE_QUIT) {		if (preferences_get_bool (PREFS_FIRST_RUN) || !script_exists ())			exit_firestarter ();		g_free (wizard);		gtk_widget_destroy (GTK_WIDGET(dialog));	}  else if (response == RESPONSE_GO_FORWARD && current_page == WIZARD_NAT_PAGE) {	/* Validate the choices made on the NAT page */		gboolean validates = TRUE;		if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (wizard->masq)) &&		    g_str_equal (wizard->extdevice, wizard->intdevice)) {			gchar *message;			message = g_strconcat ("<span weight=\"bold\" size=\"larger\">",			                       _("Please review your choices"), "\n\n</span>",			                       _("The local area and the Internet connected devices can not be the same."),			                       NULL);			show_error (message);			g_free (message);			validates = FALSE;		} else if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (wizard->dhcp_server)) &&		          gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (wizard->dhcp_new_config))) {			const gchar *nameserver = gtk_entry_get_text (GTK_ENTRY (wizard->dhcp_nameserver));			validates = (is_a_valid_host (gtk_entry_get_text (GTK_ENTRY (wizard->dhcp_highest_ip))) &&				     is_a_valid_host (gtk_entry_get_text (GTK_ENTRY (wizard->dhcp_lowest_ip))) &&				     (is_a_valid_host (nameserver) || g_ascii_strcasecmp (nameserver, "<dynamic>") == 0));			if (!validates) {				gchar *message;				message = g_strconcat ("<span weight=\"bold\" size=\"larger\">",				                       _("Please review your choices"), "\n\n</span>",				                       _("The supplied DHCP configuration is not valid."),				                       NULL);				show_error (message);				g_free (message);			}		}		if (validates) {			gtk_notebook_set_current_page (GTK_NOTEBOOK(wizard->notebook), ++current_page);			gtk_dialog_set_response_sensitive (dialog, RESPONSE_GO_FORWARD, current_page < WIZARD_FINISHED_PAGE);			gtk_dialog_set_response_sensitive (dialog, RESPONSE_FINISHED, current_page == WIZARD_FINISHED_PAGE);		}	} else if (response == RESPONSE_FINISHED) {		save_choices (wizard);		scriptwriter_output_scripts ();		/* Write DHCP configuration */		if (preferences_get_bool (PREFS_FW_NAT) &&		    preferences_get_bool (PREFS_FW_DHCP_ENABLE) &&		    gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (wizard->dhcp_new_config)))			dhcp_server_create_configuration ();		if (preferences_get_bool (PREFS_FIRST_RUN)) {			/* Mark that the wizard has been run at least once */			preferences_set_bool (PREFS_FIRST_RUN, FALSE);		}		/* Finally, start the firewall */		if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (wizard->start_firewall)))			start_firewall ();		g_free (wizard);		gtk_widget_destroy (GTK_WIDGET(dialog));		/* Show the main interface */		gui_set_visibility (TRUE);	} else {		if (response == RESPONSE_GO_BACK) {			gtk_notebook_set_current_page (GTK_NOTEBOOK(wizard->notebook), --current_page);		} else if (response == RESPONSE_GO_FORWARD) {			gtk_notebook_set_current_page (GTK_NOTEBOOK(wizard->notebook), ++current_page);		}		gtk_dialog_set_response_sensitive (dialog, RESPONSE_GO_BACK, current_page > 0);		gtk_dialog_set_response_sensitive (dialog, RESPONSE_GO_FORWARD, current_page < WIZARD_FINISHED_PAGE);		gtk_dialog_set_response_sensitive (dialog, RESPONSE_FINISHED, current_page == WIZARD_FINISHED_PAGE);	}}/* [ run_wizard ] * Run the firewall wizard */voidrun_wizard (void){	Wizard *wizard;	GtkWidget *dialog;	GtkWidget *notebook;	GtkWidget *page;	GtkWidget *alignment;	gint i;	wizard = g_new (Wizard, 1);		dialog = gtk_dialog_new_with_buttons (_("Firewall Wizard"),	                                      NULL, 0,	                                      GTK_STOCK_GO_BACK, RESPONSE_GO_BACK,	                                      GTK_STOCK_GO_FORWARD, RESPONSE_GO_FORWARD,	                                      GTK_STOCK_SAVE, RESPONSE_FINISHED,	                                      GTK_STOCK_QUIT, RESPONSE_QUIT,	                                      NULL);	g_signal_connect (dialog, "response",	                  G_CALLBACK(dialog_response_cb), wizard);	gtk_dialog_set_default_response   (GTK_DIALOG(dialog), RESPONSE_GO_FORWARD);	gtk_dialog_set_response_sensitive (GTK_DIALOG(dialog), RESPONSE_GO_BACK, FALSE);	gtk_dialog_set_response_sensitive (GTK_DIALOG(dialog), RESPONSE_GO_FORWARD, TRUE);	gtk_dialog_set_response_sensitive (GTK_DIALOG(dialog), RESPONSE_FINISHED, FALSE);	/* The wizard is a notebook widget without tabs */	notebook = wizard->notebook = gtk_notebook_new ();	gtk_notebook_set_show_tabs (GTK_NOTEBOOK(notebook), FALSE);	gtk_notebook_set_show_border (GTK_NOTEBOOK(notebook), FALSE);	gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), notebook, TRUE, TRUE, 0);	/* Create the basic wizard pages */	wizard->pages = g_ptr_array_new ();	page = create_page (_("Welcome to Firestarter"));	alignment = gtk_alignment_new (0.5, 0.5, 0.5, 0.5);	gtk_box_pack_start (GTK_BOX(page), alignment, TRUE, TRUE, 0);	gtk_container_add (GTK_CONTAINER(alignment), create_welcome_page (wizard));	g_ptr_array_add (wizard->pages, page);	page = create_page (_("Network device setup"));	alignment = gtk_alignment_new (0.5, 0.5, 0.5, 0.5);	gtk_box_pack_start (GTK_BOX(page), alignment, TRUE, TRUE, 0);	gtk_container_add (GTK_CONTAINER(alignment), create_device_page (wizard));	g_ptr_array_add (wizard->pages, page);	page = create_page (_("Internet connection sharing setup"));	alignment = gtk_alignment_new (0.5, 0.5, 0.5, 0.5);	gtk_box_pack_start (GTK_BOX(page), alignment, TRUE, TRUE, 0);	gtk_container_add (GTK_CONTAINER(alignment), create_masq_page (wizard));	g_ptr_array_add (wizard->pages, page);	/* Final page */	page = create_page (_("Ready to start your firewall"));	alignment = gtk_alignment_new (0.5, 0.5, 0.5, 0.5);	gtk_box_pack_start (GTK_BOX(page), alignment, TRUE, TRUE, 0);	gtk_container_add (GTK_CONTAINER(alignment), create_finish_page (wizard));	g_ptr_array_add (wizard->pages, page);	/* Load pages into notebook */	for (i = 0; i < wizard->pages->len; i++) {		gtk_notebook_append_page (GTK_NOTEBOOK(notebook),		                          GTK_WIDGET(g_ptr_array_index (wizard->pages,i)),		                          NULL);	}	/* Set some simple defaults when run for the first time, otherwise load previous choices */	if (!preferences_get_bool (PREFS_FIRST_RUN)) {		load_choices (wizard);	}	gtk_window_set_default_size (GTK_WINDOW (dialog), -1, 350);	gtk_widget_show_all (dialog);}