mconf.c

linux 内核源代码

				if (single_menu_mode && menu->data)
					goto conf_childs;
				return;
			case P_COMMENT:
				if (prompt) {
					child_count++;
					item_make("   %*c*** %s ***", indent + 1, ' ', prompt);
					item_set_tag(':');
					item_set_data(menu);
				}
				break;
			default:
				if (prompt) {
					child_count++;
					item_make("---%*c%s", indent + 1, ' ', prompt);
					item_set_tag(':');
					item_set_data(menu);
				}
			}
		} else
			doint = 0;
		goto conf_childs;
	}

	type = sym_get_type(sym);
	if (sym_is_choice(sym)) {
		struct symbol *def_sym = sym_get_choice_value(sym);
		struct menu *def_menu = NULL;

		child_count++;
		for (child = menu->list; child; child = child->next) {
			if (menu_is_visible(child) && child->sym == def_sym)
				def_menu = child;
		}

		val = sym_get_tristate_value(sym);
		if (sym_is_changable(sym)) {
			switch (type) {
			case S_BOOLEAN:
				item_make("[%c]", val == no ? ' ' : '*');
				break;
			case S_TRISTATE:
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				item_make("<%c>", ch);
				break;
			}
			item_set_tag('t');
			item_set_data(menu);
		} else {
			item_make("   ");
			item_set_tag(def_menu ? 't' : ':');
			item_set_data(menu);
		}

		item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
		if (val == yes) {
			if (def_menu) {
				item_add_str(" (%s)", menu_get_prompt(def_menu));
				item_add_str("  --->");
				if (def_menu->list) {
					indent += 2;
					build_conf(def_menu);
					indent -= 2;
				}
			}
			return;
		}
	} else {
		if (menu == current_menu) {
			item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
			item_set_tag(':');
			item_set_data(menu);
			goto conf_childs;
		}
		child_count++;
		val = sym_get_tristate_value(sym);
		if (sym_is_choice_value(sym) && val == yes) {
			item_make("   ");
			item_set_tag(':');
			item_set_data(menu);
		} else {
			switch (type) {
			case S_BOOLEAN:
				if (sym_is_changable(sym))
					item_make("[%c]", val == no ? ' ' : '*');
				else
					item_make("-%c-", val == no ? ' ' : '*');
				item_set_tag('t');
				item_set_data(menu);
				break;
			case S_TRISTATE:
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				if (sym_is_changable(sym)) {
					if (sym->rev_dep.tri == mod)
						item_make("{%c}", ch);
					else
						item_make("<%c>", ch);
				} else
					item_make("-%c-", ch);
				item_set_tag('t');
				item_set_data(menu);
				break;
			default:
				tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
				item_make("(%s)", sym_get_string_value(sym));
				tmp = indent - tmp + 4;
				if (tmp < 0)
					tmp = 0;
				item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
					     (sym_has_value(sym) || !sym_is_changable(sym)) ?
					     "" : " (NEW)");
				item_set_tag('s');
				item_set_data(menu);
				goto conf_childs;
			}
		}
		item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
			  (sym_has_value(sym) || !sym_is_changable(sym)) ?
			  "" : " (NEW)");
		if (menu->prompt->type == P_MENU) {
			item_add_str("  --->");
			return;
		}
	}

conf_childs:
	indent += doint;
	for (child = menu->list; child; child = child->next)
		build_conf(child);
	indent -= doint;
}

static void conf(struct menu *menu)
{
	struct menu *submenu;
	const char *prompt = menu_get_prompt(menu);
	struct symbol *sym;
	struct menu *active_menu = NULL;
	int res;
	int s_scroll = 0;

	while (1) {
		item_reset();
		current_menu = menu;
		build_conf(menu);
		if (!child_count)
			break;
		if (menu == &rootmenu) {
			item_make("--- ");
			item_set_tag(':');
			item_make(_("    Load an Alternate Configuration File"));
			item_set_tag('L');
			item_make(_("    Save an Alternate Configuration File"));
			item_set_tag('S');
		}
		dialog_clear();
		res = dialog_menu(prompt ? prompt : _("Main Menu"),
				  _(menu_instructions),
				  active_menu, &s_scroll);
		if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
			break;
		if (!item_activate_selected())
			continue;
		if (!item_tag())
			continue;

		submenu = item_data();
		active_menu = item_data();
		if (submenu)
			sym = submenu->sym;
		else
			sym = NULL;

		switch (res) {
		case 0:
			switch (item_tag()) {
			case 'm':
				if (single_menu_mode)
					submenu->data = (void *) (long) !submenu->data;
				else
					conf(submenu);
				break;
			case 't':
				if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
					conf_choice(submenu);
				else if (submenu->prompt->type == P_MENU)
					conf(submenu);
				break;
			case 's':
				conf_string(submenu);
				break;
			case 'L':
				conf_load();
				break;
			case 'S':
				conf_save();
				break;
			}
			break;
		case 2:
			if (sym)
				show_help(submenu);
			else
				show_helptext("README", _(mconf_readme));
			break;
		case 3:
			if (item_is_tag('t')) {
				if (sym_set_tristate_value(sym, yes))
					break;
				if (sym_set_tristate_value(sym, mod))
					show_textbox(NULL, setmod_text, 6, 74);
			}
			break;
		case 4:
			if (item_is_tag('t'))
				sym_set_tristate_value(sym, no);
			break;
		case 5:
			if (item_is_tag('t'))
				sym_set_tristate_value(sym, mod);
			break;
		case 6:
			if (item_is_tag('t'))
				sym_toggle_tristate_value(sym);
			else if (item_is_tag('m'))
				conf(submenu);
			break;
		case 7:
			search_conf();
			break;
		}
	}
}

static void show_textbox(const char *title, const char *text, int r, int c)
{
	dialog_clear();
	dialog_textbox(title, text, r, c);
}

static void show_helptext(const char *title, const char *text)
{
	show_textbox(title, text, 0, 0);
}

static void show_help(struct menu *menu)
{
	struct gstr help = str_new();
	struct symbol *sym = menu->sym;

	if (menu_has_help(menu))
	{
		if (sym->name) {
			str_printf(&help, "CONFIG_%s:\n\n", sym->name);
			str_append(&help, _(menu_get_help(menu)));
			str_append(&help, "\n");
		}
	} else {
		str_append(&help, nohelp_text);
	}
	get_symbol_str(&help, sym);
	show_helptext(menu_get_prompt(menu), str_get(&help));
	str_free(&help);
}

static void conf_choice(struct menu *menu)
{
	const char *prompt = menu_get_prompt(menu);
	struct menu *child;
	struct symbol *active;

	active = sym_get_choice_value(menu->sym);
	while (1) {
		int res;
		int selected;
		item_reset();

		current_menu = menu;
		for (child = menu->list; child; child = child->next) {
			if (!menu_is_visible(child))
				continue;
			item_make("%s", menu_get_prompt(child));
			item_set_data(child);
			if (child->sym == active)
				item_set_selected(1);
			if (child->sym == sym_get_choice_value(menu->sym))
				item_set_tag('X');
		}
		dialog_clear();
		res = dialog_checklist(prompt ? prompt : _("Main Menu"),
					_(radiolist_instructions),
					 15, 70, 6);
		selected = item_activate_selected();
		switch (res) {
		case 0:
			if (selected) {
				child = item_data();
				sym_set_tristate_value(child->sym, yes);
			}
			return;
		case 1:
			if (selected) {
				child = item_data();
				show_help(child);
				active = child->sym;
			} else
				show_help(menu);
			break;
		case KEY_ESC:
			return;
		case -ERRDISPLAYTOOSMALL:
			return;
		}
	}
}

static void conf_string(struct menu *menu)
{
	const char *prompt = menu_get_prompt(menu);

	while (1) {
		int res;
		char *heading;

		switch (sym_get_type(menu->sym)) {
		case S_INT:
			heading = _(inputbox_instructions_int);
			break;
		case S_HEX:
			heading = _(inputbox_instructions_hex);
			break;
		case S_STRING:
			heading = _(inputbox_instructions_string);
			break;
		default:
			heading = "Internal mconf error!";
		}
		dialog_clear();
		res = dialog_inputbox(prompt ? prompt : _("Main Menu"),
				      heading, 10, 75,
				      sym_get_string_value(menu->sym));
		switch (res) {
		case 0:
			if (sym_set_string_value(menu->sym, dialog_input_result))
				return;
			show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
			break;
		case 1:
			show_help(menu);
			break;
		case KEY_ESC:
			return;
		}
	}
}

static void conf_load(void)
{

	while (1) {
		int res;
		dialog_clear();
		res = dialog_inputbox(NULL, load_config_text,
				      11, 55, filename);
		switch(res) {
		case 0:
			if (!dialog_input_result[0])
				return;
			if (!conf_read(dialog_input_result)) {
				set_config_filename(dialog_input_result);
				return;
			}
			show_textbox(NULL, _("File does not exist!"), 5, 38);
			break;
		case 1:
			show_helptext(_("Load Alternate Configuration"), load_config_help);
			break;
		case KEY_ESC:
			return;
		}
	}
}

static void conf_save(void)
{
	while (1) {
		int res;
		dialog_clear();
		res = dialog_inputbox(NULL, save_config_text,
				      11, 55, filename);
		switch(res) {
		case 0:
			if (!dialog_input_result[0])
				return;
			if (!conf_write(dialog_input_result)) {
				set_config_filename(dialog_input_result);
				return;
			}
			show_textbox(NULL, _("Can't create file!  Probably a nonexistent directory."), 5, 60);
			break;
		case 1:
			show_helptext(_("Save Alternate Configuration"), save_config_help);
			break;
		case KEY_ESC:
			return;
		}
	}
}

static void conf_cleanup(void)
{
	tcsetattr(1, TCSAFLUSH, &ios_org);
}

int main(int ac, char **av)
{
	char *mode;
	int res;

	setlocale(LC_ALL, "");
	bindtextdomain(PACKAGE, LOCALEDIR);
	textdomain(PACKAGE);

	conf_parse(av[1]);
	conf_read(NULL);

	mode = getenv("MENUCONFIG_MODE");
	if (mode) {
		if (!strcasecmp(mode, "single_menu"))
			single_menu_mode = 1;
	}

	tcgetattr(1, &ios_org);
	atexit(conf_cleanup);
	init_wsize();
	reset_dialog();
	init_dialog(NULL);
	set_config_filename(conf_get_configname());
	do {
		conf(&rootmenu);
		dialog_clear();
		if (conf_get_changed())
			res = dialog_yesno(NULL,
					   _("Do you wish to save your "
					     "new kernel configuration?\n"
					     "<ESC><ESC> to continue."),
					   6, 60);
		else
			res = -1;
	} while (res == KEY_ESC);
	end_dialog();

	switch (res) {
	case 0:
		if (conf_write(filename)) {
			fprintf(stderr, _("\n\n"
				"Error during writing of the kernel configuration.\n"
				"Your kernel configuration changes were NOT saved."
				"\n\n"));
			return 1;
		}
	case -1:
		printf(_("\n\n"
			"*** End of Linux kernel configuration.\n"
			"*** Execute 'make' to build the kernel or try 'make help'."
			"\n\n"));
		break;
	default:
		fprintf(stderr, _("\n\n"
			"Your kernel configuration changes were NOT saved."
			"\n\n"));
	}

	return 0;
}