mconf.c

busybox最新版的源码:学习和应用的好东东,多的不说了,大家看后再说吧

	sym_arr = sym_re_search(input_buf);
	res = get_relations_str(sym_arr);
	free(sym_arr);
	show_textbox(_("Search Results"), str_get(&res), 0, 0);
	str_free(&res);
}

static void build_conf(struct menu *menu)
{
	struct symbol *sym;
	struct property *prop;
	struct menu *child;
	int type, tmp, doint = 2;
	tristate val;
	char ch;

	if (!menu_is_visible(menu))
		return;

	sym = menu->sym;
	prop = menu->prompt;
	if (!sym) {
		if (prop && menu != current_menu) {
			const char *prompt = menu_get_prompt(menu);
			switch (prop->type) {
			case P_MENU:
				child_count++;
				cprint("m%p", menu);

				if (single_menu_mode) {
					cprint1("%s%*c%s",
						menu->data ? "-->" : "++>",
						indent + 1, ' ', prompt);
				} else
					cprint1("   %*c%s  --->", indent + 1, ' ', prompt);

				cprint_done();
				if (single_menu_mode && menu->data)
					goto conf_childs;
				return;
			default:
				if (prompt) {
					child_count++;
					cprint(":%p", menu);
					cprint("---%*c%s", indent + 1, ' ', prompt);
				}
			}
		} 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)) {
			cprint("t%p", menu);
			switch (type) {
			case S_BOOLEAN:
				cprint1("[%c]", val == no ? ' ' : '*');
				break;
			case S_TRISTATE:
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				cprint1("<%c>", ch);
				break;
			}
		} else {
			cprint("%c%p", def_menu ? 't' : ':', menu);
			cprint1("   ");
		}

		cprint1("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
		if (val == yes) {
			if (def_menu) {
				cprint1(" (%s)", menu_get_prompt(def_menu));
				cprint1("  --->");
				cprint_done();
				if (def_menu->list) {
					indent += 2;
					build_conf(def_menu);
					indent -= 2;
				}
			} else
				cprint_done();
			return;
		}
		cprint_done();
	} else {
		if (menu == current_menu) {
			cprint(":%p", menu);
			cprint("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
			goto conf_childs;
		}
		child_count++;
		val = sym_get_tristate_value(sym);
		if (sym_is_choice_value(sym) && val == yes) {
			cprint(":%p", menu);
			cprint1("   ");
		} else {
			switch (type) {
			case S_BOOLEAN:
				cprint("t%p", menu);
				if (sym_is_changable(sym))
					cprint1("[%c]", val == no ? ' ' : '*');
				else
					cprint1("---");
				break;
			case S_TRISTATE:
				cprint("t%p", menu);
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				if (sym_is_changable(sym))
					cprint1("<%c>", ch);
				else
					cprint1("---");
				break;
			default:
				cprint("s%p", menu);
				tmp = cprint1("(%s)", sym_get_string_value(sym));
				tmp = indent - tmp + 4;
				if (tmp < 0)
					tmp = 0;
				cprint1("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
					(sym_has_value(sym) || !sym_is_changable(sym)) ?
					"" : " (NEW)");
				cprint_done();
				goto conf_childs;
			}
		}
		cprint1("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
			(sym_has_value(sym) || !sym_is_changable(sym)) ?
			"" : " (NEW)");
		if (menu->prompt->type == P_MENU) {
			cprint1("  --->");
			cprint_done();
			return;
		}
		cprint_done();
	}

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;
	char active_entry[40];
	int stat, type, i;

	unlink("lxdialog.scrltmp");
	active_entry[0] = 0;
	while (1) {
		cprint_init();
		cprint("--title");
		cprint("%s", prompt ? prompt : _("Main Menu"));
		cprint("--menu");
		cprint(_(menu_instructions));
		cprint("%d", rows);
		cprint("%d", cols);
		cprint("%d", rows - 10);
		cprint("%s", active_entry);
		current_menu = menu;
		build_conf(menu);
		if (!child_count)
			break;
		if (menu == &rootmenu) {
			cprint(":");
			cprint("--- ");
			cprint("L");
			cprint(_("    Load an Alternate Configuration File"));
			cprint("S");
			cprint(_("    Save Configuration to an Alternate File"));
		}
		stat = exec_conf();
		if (stat < 0)
			continue;

		if (stat == 1 || stat == 255)
			break;

		type = input_buf[0];
		if (!type)
			continue;

		for (i = 0; input_buf[i] && !isspace(input_buf[i]); i++)
			;
		if (i >= sizeof(active_entry))
			i = sizeof(active_entry) - 1;
		input_buf[i] = 0;
		strcpy(active_entry, input_buf);

		sym = NULL;
		submenu = NULL;
		if (sscanf(input_buf + 1, "%p", &submenu) == 1)
			sym = submenu->sym;

		switch (stat) {
		case 0:
			switch (type) {
			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 (type == '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 (type == 't')
				sym_set_tristate_value(sym, no);
			break;
		case 5:
			if (type == 't')
				sym_set_tristate_value(sym, mod);
			break;
		case 6:
			if (type == 't')
				sym_toggle_tristate_value(sym);
			else if (type == 'm')
				conf(submenu);
			break;
		case 7:
			search_conf();
			break;
		}
	}
}

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

	fd = creat(".help.tmp", 0777);
	write(fd, text, strlen(text));
	close(fd);
	show_file(".help.tmp", title, r, c);
	unlink(".help.tmp");
}

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 (sym->help)
	{
		if (sym->name) {
			str_printf(&help, "CONFIG_%s:\n\n", sym->name);
			str_append(&help, _(sym->help));
			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 show_file(const char *filename, const char *title, int r, int c)
{
	do {
		cprint_init();
		if (title) {
			cprint("--title");
			cprint("%s", title);
		}
		cprint("--textbox");
		cprint("%s", filename);
		cprint("%d", r ? r : rows);
		cprint("%d", c ? c : cols);
	} while (exec_conf() < 0);
}

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

	active = sym_get_choice_value(menu->sym);
	while (1) {
		cprint_init();
		cprint("--title");
		cprint("%s", prompt ? prompt : _("Main Menu"));
		cprint("--radiolist");
		cprint(_(radiolist_instructions));
		cprint("15");
		cprint("70");
		cprint("6");

		current_menu = menu;
		for (child = menu->list; child; child = child->next) {
			if (!menu_is_visible(child))
				continue;
			cprint("%p", child);
			cprint("%s", menu_get_prompt(child));
			if (child->sym == sym_get_choice_value(menu->sym))
				cprint("ON");
			else if (child->sym == active)
				cprint("SELECTED");
			else
				cprint("OFF");
		}

		stat = exec_conf();
		switch (stat) {
		case 0:
			if (sscanf(input_buf, "%p", &child) != 1)
				break;
			sym_set_tristate_value(child->sym, yes);
			return;
		case 1:
			if (sscanf(input_buf, "%p", &child) == 1) {
				show_help(child);
				active = child->sym;
			} else
				show_help(menu);
			break;
		case 255:
			return;
		}
	}
}

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

	while (1) {
		cprint_init();
		cprint("--title");
		cprint("%s", prompt ? prompt : _("Main Menu"));
		cprint("--inputbox");
		switch (sym_get_type(menu->sym)) {
		case S_INT:
			cprint(_(inputbox_instructions_int));
			break;
		case S_HEX:
			cprint(_(inputbox_instructions_hex));
			break;
		case S_STRING:
			cprint(_(inputbox_instructions_string));
			break;
		default:
			/* panic? */;
		}
		cprint("10");
		cprint("75");
		cprint("%s", sym_get_string_value(menu->sym));
		stat = exec_conf();
		switch (stat) {
		case 0:
			if (sym_set_string_value(menu->sym, input_buf))
				return;
			show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
			break;
		case 1:
			show_help(menu);
			break;
		case 255:
			return;
		}
	}
}

static void conf_load(void)
{
	int stat;

	while (1) {
		cprint_init();
		cprint("--inputbox");
		cprint(load_config_text);
		cprint("11");
		cprint("55");
		cprint("%s", filename);
		stat = exec_conf();
		switch(stat) {
		case 0:
			if (!input_buf[0])
				return;
			if (!conf_read(input_buf))
				return;
			show_textbox(NULL, _("File does not exist!"), 5, 38);
			break;
		case 1:
			show_helptext(_("Load Alternate Configuration"), load_config_help);
			break;
		case 255:
			return;
		}
	}
}

static void conf_save(void)
{
	int stat;

	while (1) {
		cprint_init();
		cprint("--inputbox");
		cprint(save_config_text);
		cprint("11");
		cprint("55");
		cprint("%s", filename);
		stat = exec_conf();
		switch(stat) {
		case 0:
			if (!input_buf[0])
				return;
			if (!conf_write(input_buf))
				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 255:
			return;
		}
	}
}

static void conf_cleanup(void)
{
	tcsetattr(1, TCSAFLUSH, &ios_org);
	unlink(".help.tmp");
	unlink("lxdialog.scrltmp");
}

int main(int ac, char **av)
{
	struct symbol *sym;
	char *mode;
	int stat;

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

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

	sym = sym_lookup("KERNELVERSION", 0);
	sym_calc_value(sym);
	sprintf(menu_backtitle, _("BusyBox %s Configuration"),
		sym_get_string_value(sym));

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

	tcgetattr(1, &ios_org);
	atexit(conf_cleanup);
	init_wsize();
	conf(&rootmenu);

	do {
		cprint_init();
		cprint("--yesno");
		cprint(_("Do you wish to save your new busybox configuration?"));
		cprint("5");
		cprint("60");
		stat = exec_conf();
	} while (stat < 0);

	if (stat == 0) {
		if (conf_write(NULL)) {
			fprintf(stderr, _("\n\n"
				"Error during writing of the busybox configuration.\n"
				"Your busybox configuration changes were NOT saved."
				"\n\n"));
			return 1;
		}
		printf(_("\n\n"
			"*** End of busybox configuration.\n"
			"*** Execute 'make' to build busybox or try 'make help'."
			"\n\n"));
	} else {
		fprintf(stderr, _("\n\n"
			"Your busybox configuration changes were NOT saved."
			"\n\n"));
	}

	return 0;
}