[linux-2.6-block.git] / scripts / kconfig / conf.c

/*
 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
 * Released under the terms of the GNU GPL v2.0.
 */

#include <locale.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <getopt.h>
#include <sys/stat.h>
#include <sys/time.h>

#include "lkc.h"

static void conf(struct menu *menu);
static void check_conf(struct menu *menu);
static void xfgets(char *str, int size, FILE *in);

enum input_mode {
	oldaskconfig,
	silentoldconfig,
	oldconfig,
	allnoconfig,
	allyesconfig,
	allmodconfig,
	alldefconfig,
	randconfig,
	defconfig,
	savedefconfig,
	listnewconfig,
	olddefconfig,
} input_mode = oldaskconfig;

static int indent = 1;
static int tty_stdio;
static int valid_stdin = 1;
static int sync_kconfig;
static int conf_cnt;
static char line[128];
static struct menu *rootEntry;

static void print_help(struct menu *menu)
{
	struct gstr help = str_new();

	menu_get_ext_help(menu, &help);

	printf("\n%s\n", str_get(&help));
	str_free(&help);
}

static void strip(char *str)
{
	char *p = str;
	int l;

	while ((isspace(*p)))
		p++;
	l = strlen(p);
	if (p != str)
		memmove(str, p, l + 1);
	if (!l)
		return;
	p = str + l - 1;
	while ((isspace(*p)))
		*p-- = 0;
}

static void check_stdin(void)
{
	if (!valid_stdin) {
		printf(_("aborted!\n\n"));
		printf(_("Console input/output is redirected. "));
		printf(_("Run 'make oldconfig' to update configuration.\n\n"));
		exit(1);
	}
}

static int conf_askvalue(struct symbol *sym, const char *def)
{
	enum symbol_type type = sym_get_type(sym);

	if (!sym_has_value(sym))
		printf(_("(NEW) "));

	line[0] = '\n';
	line[1] = 0;

	if (!sym_is_changable(sym)) {
		printf("%s\n", def);
		line[0] = '\n';
		line[1] = 0;
		return 0;
	}

	switch (input_mode) {
	case oldconfig:
	case silentoldconfig:
		if (sym_has_value(sym)) {
			printf("%s\n", def);
			return 0;
		}
		check_stdin();
		/* fall through */
	case oldaskconfig:
		fflush(stdout);
		xfgets(line, 128, stdin);
		if (!tty_stdio)
			printf("\n");
		return 1;
	default:
		break;
	}

	switch (type) {
	case S_INT:
	case S_HEX:
	case S_STRING:
		printf("%s\n", def);
		return 1;
	default:
		;
	}
	printf("%s", line);
	return 1;
}

static int conf_string(struct menu *menu)
{
	struct symbol *sym = menu->sym;
	const char *def;

	while (1) {
		printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
		printf("(%s) ", sym->name);
		def = sym_get_string_value(sym);
		if (sym_get_string_value(sym))
			printf("[%s] ", def);
		if (!conf_askvalue(sym, def))
			return 0;
		switch (line[0]) {
		case '\n':
			break;
		case '?':
			/* print help */
			if (line[1] == '\n') {
				print_help(menu);
				def = NULL;
				break;
			}
			/* fall through */
		default:
			line[strlen(line)-1] = 0;
			def = line;
		}
		if (def && sym_set_string_value(sym, def))
			return 0;
	}
}

static int conf_sym(struct menu *menu)
{
	struct symbol *sym = menu->sym;
	tristate oldval, newval;

	while (1) {
		printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
		if (sym->name)
			printf("(%s) ", sym->name);
		putchar('[');
		oldval = sym_get_tristate_value(sym);
		switch (oldval) {
		case no:
			putchar('N');
			break;
		case mod:
			putchar('M');
			break;
		case yes:
			putchar('Y');
			break;
		}
		if (oldval != no && sym_tristate_within_range(sym, no))
			printf("/n");
		if (oldval != mod && sym_tristate_within_range(sym, mod))
			printf("/m");
		if (oldval != yes && sym_tristate_within_range(sym, yes))
			printf("/y");
		if (menu_has_help(menu))
			printf("/?");
		printf("] ");
		if (!conf_askvalue(sym, sym_get_string_value(sym)))
			return 0;
		strip(line);

		switch (line[0]) {
		case 'n':
		case 'N':
			newval = no;
			if (!line[1] || !strcmp(&line[1], "o"))
				break;
			continue;
		case 'm':
		case 'M':
			newval = mod;
			if (!line[1])
				break;
			continue;
		case 'y':
		case 'Y':
			newval = yes;
			if (!line[1] || !strcmp(&line[1], "es"))
				break;
			continue;
		case 0:
			newval = oldval;
			break;
		case '?':
			goto help;
		default:
			continue;
		}
		if (sym_set_tristate_value(sym, newval))
			return 0;
help:
		print_help(menu);
	}
}

static int conf_choice(struct menu *menu)
{
	struct symbol *sym, *def_sym;
	struct menu *child;
	bool is_new;

	sym = menu->sym;
	is_new = !sym_has_value(sym);
	if (sym_is_changable(sym)) {
		conf_sym(menu);
		sym_calc_value(sym);
		switch (sym_get_tristate_value(sym)) {
		case no:
			return 1;
		case mod:
			return 0;
		case yes:
			break;
		}
	} else {
		switch (sym_get_tristate_value(sym)) {
		case no:
			return 1;
		case mod:
			printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
			return 0;
		case yes:
			break;
		}
	}

	while (1) {
		int cnt, def;

		printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
		def_sym = sym_get_choice_value(sym);
		cnt = def = 0;
		line[0] = 0;
		for (child = menu->list; child; child = child->next) {
			if (!menu_is_visible(child))
				continue;
			if (!child->sym) {
				printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
				continue;
			}
			cnt++;
			if (child->sym == def_sym) {
				def = cnt;
				printf("%*c", indent, '>');
			} else
				printf("%*c", indent, ' ');
			printf(" %d. %s", cnt, _(menu_get_prompt(child)));
			if (child->sym->name)
				printf(" (%s)", child->sym->name);
			if (!sym_has_value(child->sym))
				printf(_(" (NEW)"));
			printf("\n");
		}
		printf(_("%*schoice"), indent - 1, "");
		if (cnt == 1) {
			printf("[1]: 1\n");
			goto conf_childs;
		}
		printf("[1-%d", cnt);
		if (menu_has_help(menu))
			printf("?");
		printf("]: ");
		switch (input_mode) {
		case oldconfig:
		case silentoldconfig:
			if (!is_new) {
				cnt = def;
				printf("%d\n", cnt);
				break;
			}
			check_stdin();
			/* fall through */
		case oldaskconfig:
			fflush(stdout);
			xfgets(line, 128, stdin);
			strip(line);
			if (line[0] == '?') {
				print_help(menu);
				continue;
			}
			if (!line[0])
				cnt = def;
			else if (isdigit(line[0]))
				cnt = atoi(line);
			else
				continue;
			break;
		default:
			break;
		}

	conf_childs:
		for (child = menu->list; child; child = child->next) {
			if (!child->sym || !menu_is_visible(child))
				continue;
			if (!--cnt)
				break;
		}
		if (!child)
			continue;
		if (line[0] && line[strlen(line) - 1] == '?') {
			print_help(child);
			continue;
		}
		sym_set_choice_value(sym, child->sym);
		for (child = child->list; child; child = child->next) {
			indent += 2;
			conf(child);
			indent -= 2;
		}
		return 1;
	}
}

static void conf(struct menu *menu)
{
	struct symbol *sym;
	struct property *prop;
	struct menu *child;

	if (!menu_is_visible(menu))
		return;

	sym = menu->sym;
	prop = menu->prompt;
	if (prop) {
		const char *prompt;

		switch (prop->type) {
		case P_MENU:
			if ((input_mode == silentoldconfig ||
			     input_mode == listnewconfig ||
			     input_mode == olddefconfig) &&
			    rootEntry != menu) {
				check_conf(menu);
				return;
			}
			/* fall through */
		case P_COMMENT:
			prompt = menu_get_prompt(menu);
			if (prompt)
				printf("%*c\n%*c %s\n%*c\n",
					indent, '*',
					indent, '*', _(prompt),
					indent, '*');
		default:
			;
		}
	}

	if (!sym)
		goto conf_childs;

	if (sym_is_choice(sym)) {
		conf_choice(menu);
		if (sym->curr.tri != mod)
			return;
		goto conf_childs;
	}

	switch (sym->type) {
	case S_INT:
	case S_HEX:
	case S_STRING:
		conf_string(menu);
		break;
	default:
		conf_sym(menu);
		break;
	}

conf_childs:
	if (sym)
		indent += 2;
	for (child = menu->list; child; child = child->next)
		conf(child);
	if (sym)
		indent -= 2;
}

static void check_conf(struct menu *menu)
{
	struct symbol *sym;
	struct menu *child;

	if (!menu_is_visible(menu))
		return;

	sym = menu->sym;
	if (sym && !sym_has_value(sym)) {
		if (sym_is_changable(sym) ||
		    (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
			if (input_mode == listnewconfig) {
				if (sym->name && !sym_is_choice_value(sym)) {
					printf("%s%s\n", CONFIG_, sym->name);
				}
			} else if (input_mode != olddefconfig) {
				if (!conf_cnt++)
					printf(_("*\n* Restart config...\n*\n"));
				rootEntry = menu_get_parent_menu(menu);
				conf(rootEntry);
			}
		}
	}

	for (child = menu->list; child; child = child->next)
		check_conf(child);
}

static struct option long_opts[] = {
	{"oldaskconfig",    no_argument,       NULL, oldaskconfig},
	{"oldconfig",       no_argument,       NULL, oldconfig},
	{"silentoldconfig", no_argument,       NULL, silentoldconfig},
	{"defconfig",       optional_argument, NULL, defconfig},
	{"savedefconfig",   required_argument, NULL, savedefconfig},
	{"allnoconfig",     no_argument,       NULL, allnoconfig},
	{"allyesconfig",    no_argument,       NULL, allyesconfig},
	{"allmodconfig",    no_argument,       NULL, allmodconfig},
	{"alldefconfig",    no_argument,       NULL, alldefconfig},
	{"randconfig",      no_argument,       NULL, randconfig},
	{"listnewconfig",   no_argument,       NULL, listnewconfig},
	{"olddefconfig",    no_argument,       NULL, olddefconfig},
	/*
	 * oldnoconfig is an alias of olddefconfig, because people already
	 * are dependent on its behavior(sets new symbols to their default
	 * value but not 'n') with the counter-intuitive name.
	 */
	{"oldnoconfig",     no_argument,       NULL, olddefconfig},
	{NULL, 0, NULL, 0}
};

static void conf_usage(const char *progname)
{

	printf("Usage: %s [option] <kconfig-file>\n", progname);
	printf("[option] is _one_ of the following:\n");
	printf("  --listnewconfig         List new options\n");
	printf("  --oldaskconfig          Start a new configuration using a line-oriented program\n");
	printf("  --oldconfig             Update a configuration using a provided .config as base\n");
	printf("  --silentoldconfig       Same as oldconfig, but quietly, additionally update deps\n");
	printf("  --olddefconfig          Same as silentoldconfig but sets new symbols to their default value\n");
	printf("  --oldnoconfig           An alias of olddefconfig\n");
	printf("  --defconfig <file>      New config with default defined in <file>\n");
	printf("  --savedefconfig <file>  Save the minimal current configuration to <file>\n");
	printf("  --allnoconfig           New config where all options are answered with no\n");
	printf("  --allyesconfig          New config where all options are answered with yes\n");
	printf("  --allmodconfig          New config where all options are answered with mod\n");
	printf("  --alldefconfig          New config with all symbols set to default\n");
	printf("  --randconfig            New config with random answer to all options\n");
}

int main(int ac, char **av)
{
	const char *progname = av[0];
	int opt;
	const char *name, *defconfig_file = NULL /* gcc uninit */;
	struct stat tmpstat;

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

	tty_stdio = isatty(0) && isatty(1) && isatty(2);

	while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
		input_mode = (enum input_mode)opt;
		switch (opt) {
		case silentoldconfig:
			sync_kconfig = 1;
			break;
		case defconfig:
		case savedefconfig:
			defconfig_file = optarg;
			break;
		case randconfig:
		{
			struct timeval now;
			unsigned int seed;

			/*
			 * Use microseconds derived seed,
			 * compensate for systems where it may be zero
			 */
			gettimeofday(&now, NULL);

			seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
			srand(seed);
			break;
		}
		case oldaskconfig:
		case oldconfig:
		case allnoconfig:
		case allyesconfig:
		case allmodconfig:
		case alldefconfig:
		case listnewconfig:
		case olddefconfig:
			break;
		case '?':
			conf_usage(progname);
			exit(1);
			break;
		}
	}
	if (ac == optind) {
		printf(_("%s: Kconfig file missing\n"), av[0]);
		conf_usage(progname);
		exit(1);
	}
	name = av[optind];
	conf_parse(name);
	//zconfdump(stdout);
	if (sync_kconfig) {
		name = conf_get_configname();
		if (stat(name, &tmpstat)) {
			fprintf(stderr, _("***\n"
				"*** Configuration file \"%s\" not found!\n"
				"***\n"
				"*** Please run some configurator (e.g. \"make oldconfig\" or\n"
				"*** \"make menuconfig\" or \"make xconfig\").\n"
				"***\n"), name);
			exit(1);
		}
	}

	switch (input_mode) {
	case defconfig:
		if (!defconfig_file)
			defconfig_file = conf_get_default_confname();
		if (conf_read(defconfig_file)) {
			printf(_("***\n"
				"*** Can't find default configuration \"%s\"!\n"
				"***\n"), defconfig_file);
			exit(1);
		}
		break;
	case savedefconfig:
	case silentoldconfig:
	case oldaskconfig:
	case oldconfig:
	case listnewconfig:
	case olddefconfig:
		conf_read(NULL);
		break;
	case allnoconfig:
	case allyesconfig:
	case allmodconfig:
	case alldefconfig:
	case randconfig:
		name = getenv("KCONFIG_ALLCONFIG");
		if (!name)
			break;
		if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
			if (conf_read_simple(name, S_DEF_USER)) {
				fprintf(stderr,
					_("*** Can't read seed configuration \"%s\"!\n"),
					name);
				exit(1);
			}
			break;
		}
		switch (input_mode) {
		case allnoconfig:	name = "allno.config"; break;
		case allyesconfig:	name = "allyes.config"; break;
		case allmodconfig:	name = "allmod.config"; break;
		case alldefconfig:	name = "alldef.config"; break;
		case randconfig:	name = "allrandom.config"; break;
		default: break;
		}
		if (conf_read_simple(name, S_DEF_USER) &&
		    conf_read_simple("all.config", S_DEF_USER)) {
			fprintf(stderr,
				_("*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n"),
				name);
			exit(1);
		}
		break;
	default:
		break;
	}

	if (sync_kconfig) {
		if (conf_get_changed()) {
			name = getenv("KCONFIG_NOSILENTUPDATE");
			if (name && *name) {
				fprintf(stderr,
					_("\n*** The configuration requires explicit update.\n\n"));
				return 1;
			}
		}
		valid_stdin = tty_stdio;
	}

	switch (input_mode) {
	case allnoconfig:
		conf_set_all_new_symbols(def_no);
		break;
	case allyesconfig:
		conf_set_all_new_symbols(def_yes);
		break;
	case allmodconfig:
		conf_set_all_new_symbols(def_mod);
		break;
	case alldefconfig:
		conf_set_all_new_symbols(def_default);
		break;
	case randconfig:
		conf_set_all_new_symbols(def_random);
		break;
	case defconfig:
		conf_set_all_new_symbols(def_default);
		break;
	case savedefconfig:
		break;
	case oldaskconfig:
		rootEntry = &rootmenu;
		conf(&rootmenu);
		input_mode = silentoldconfig;
		/* fall through */
	case oldconfig:
	case listnewconfig:
	case olddefconfig:
	case silentoldconfig:
		/* Update until a loop caused no more changes */
		do {
			conf_cnt = 0;
			check_conf(&rootmenu);
		} while (conf_cnt &&
			 (input_mode != listnewconfig &&
			  input_mode != olddefconfig));
		break;
	}

	if (sync_kconfig) {
		/* silentoldconfig is used during the build so we shall update autoconf.
		 * All other commands are only used to generate a config.
		 */
		if (conf_get_changed() && conf_write(NULL)) {
			fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
			exit(1);
		}
		if (conf_write_autoconf()) {
			fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
			return 1;
		}
	} else if (input_mode == savedefconfig) {
		if (conf_write_defconfig(defconfig_file)) {
			fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
			        defconfig_file);
			return 1;
		}
	} else if (input_mode != listnewconfig) {
		if (conf_write(NULL)) {
			fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
			exit(1);
		}
	}
	return 0;
}

/*
 * Helper function to facilitate fgets() by Jean Sacren.
 */
void xfgets(char *str, int size, FILE *in)
{
	if (fgets(str, size, in) == NULL)
		fprintf(stderr, "\nError in reading or end of file.\n");
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
	3	* Released under the terms of the GNU GPL v2.0.
	4	*/
	5
534a450c	6	#include <locale.h>
1da177e4	7	#include <ctype.h>
9dfb563b	8	#include <stdio.h>
75ff4309	9	#include <stdlib.h>
1da177e4	10	#include <string.h>
1da177e4	11	#include <time.h>
75ff4309	12	#include <unistd.h>
4062f1a4	13	#include <getopt.h>
1da177e4	14	#include <sys/stat.h>
b0fe5510	15	#include <sys/time.h>
1da177e4	16
1da177e4 LT	17	#include "lkc.h"
	18
	19	static void conf(struct menu *menu);
	20	static void check_conf(struct menu *menu);
ab63f58f	21	static void xfgets(char str, int size, FILE in);
1da177e4	22
4062f1a4 SR	23	enum input_mode {
	24	oldaskconfig,
	25	silentoldconfig,
	26	oldconfig,
	27	allnoconfig,
	28	allyesconfig,
	29	allmodconfig,
0748cb3e	30	alldefconfig,
4062f1a4 SR	31	randconfig,
4062f1a4 SR	32	defconfig,
7cf3d73b	33	savedefconfig,
861b4ea4	34	listnewconfig,
fb16d891	35	olddefconfig,
4062f1a4 SR	36	} input_mode = oldaskconfig;
4062f1a4 SR	37
1da177e4	38	static int indent = 1;
62dc9899	39	static int tty_stdio;
1da177e4	40	static int valid_stdin = 1;
204c96f6	41	static int sync_kconfig;
1da177e4	42	static int conf_cnt;
48b9d03c	43	static char line[128];
1da177e4 LT	44	static struct menu *rootEntry;
1da177e4 LT	45
66c4bd80	46	static void print_help(struct menu *menu)
03d29122	47	{
66c4bd80 CR	48	struct gstr help = str_new();
	49
	50	menu_get_ext_help(menu, &help);
	51
	52	printf("\n%s\n", str_get(&help));
	53	str_free(&help);
03d29122 SR	54	}
03d29122 SR	55
48b9d03c	56	static void strip(char *str)
1da177e4	57	{
48b9d03c	58	char *p = str;
1da177e4 LT	59	int l;
	60
	61	while ((isspace(*p)))
	62	p++;
	63	l = strlen(p);
	64	if (p != str)
	65	memmove(str, p, l + 1);
	66	if (!l)
	67	return;
	68	p = str + l - 1;
	69	while ((isspace(*p)))
	70	*p-- = 0;
	71	}
	72
	73	static void check_stdin(void)
	74	{
204c96f6	75	if (!valid_stdin) {
3b9fa093 ACM	76	printf(_("aborted!\n\n"));
	77	printf(_("Console input/output is redirected. "));
	78	printf(_("Run 'make oldconfig' to update configuration.\n\n"));
1da177e4 LT	79	exit(1);
	80	}
	81	}
	82
f82f3f94	83	static int conf_askvalue(struct symbol sym, const char def)
1da177e4 LT	84	{
1da177e4 LT	85	enum symbol_type type = sym_get_type(sym);
1da177e4 LT	86
1da177e4 LT	87	if (!sym_has_value(sym))
534a450c	88	printf(_("(NEW) "));
1da177e4 LT	89
	90	line[0] = '\n';
	91	line[1] = 0;
	92
	93	if (!sym_is_changable(sym)) {
	94	printf("%s\n", def);
	95	line[0] = '\n';
	96	line[1] = 0;
f82f3f94	97	return 0;
1da177e4 LT	98	}
	99
	100	switch (input_mode) {
4062f1a4 SR	101	case oldconfig:
4062f1a4 SR	102	case silentoldconfig:
1da177e4 LT	103	if (sym_has_value(sym)) {
1da177e4 LT	104	printf("%s\n", def);
f82f3f94	105	return 0;
1da177e4 LT	106	}
1da177e4 LT	107	check_stdin();
d8fc3200	108	/* fall through */
4062f1a4	109	case oldaskconfig:
1da177e4	110	fflush(stdout);
4418a2b9	111	xfgets(line, 128, stdin);
62dc9899 BH	112	if (!tty_stdio)
62dc9899 BH	113	printf("\n");
f82f3f94	114	return 1;
1da177e4 LT	115	default:
	116	break;
	117	}
	118
	119	switch (type) {
	120	case S_INT:
	121	case S_HEX:
	122	case S_STRING:
	123	printf("%s\n", def);
f82f3f94	124	return 1;
1da177e4 LT	125	default:
	126	;
	127	}
1da177e4	128	printf("%s", line);
f82f3f94	129	return 1;
1da177e4 LT	130	}
1da177e4 LT	131
4356f489	132	static int conf_string(struct menu *menu)
1da177e4 LT	133	{
1da177e4 LT	134	struct symbol *sym = menu->sym;
03d29122	135	const char *def;
1da177e4 LT	136
1da177e4 LT	137	while (1) {
534a450c	138	printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
1da177e4 LT	139	printf("(%s) ", sym->name);
	140	def = sym_get_string_value(sym);
	141	if (sym_get_string_value(sym))
	142	printf("[%s] ", def);
f82f3f94 RZ	143	if (!conf_askvalue(sym, def))
f82f3f94 RZ	144	return 0;
1da177e4 LT	145	switch (line[0]) {
	146	case '\n':
	147	break;
	148	case '?':
	149	/* print help */
	150	if (line[1] == '\n') {
66c4bd80	151	print_help(menu);
1da177e4 LT	152	def = NULL;
	153	break;
	154	}
d8fc3200	155	/* fall through */
1da177e4 LT	156	default:
	157	line[strlen(line)-1] = 0;
	158	def = line;
	159	}
	160	if (def && sym_set_string_value(sym, def))
	161	return 0;
	162	}
	163	}
	164
	165	static int conf_sym(struct menu *menu)
	166	{
	167	struct symbol *sym = menu->sym;
1da177e4	168	tristate oldval, newval;
1da177e4 LT	169
1da177e4 LT	170	while (1) {
534a450c	171	printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
1da177e4 LT	172	if (sym->name)
1da177e4 LT	173	printf("(%s) ", sym->name);
1da177e4 LT	174	putchar('[');
	175	oldval = sym_get_tristate_value(sym);
	176	switch (oldval) {
	177	case no:
	178	putchar('N');
	179	break;
	180	case mod:
	181	putchar('M');
	182	break;
	183	case yes:
	184	putchar('Y');
	185	break;
	186	}
	187	if (oldval != no && sym_tristate_within_range(sym, no))
	188	printf("/n");
	189	if (oldval != mod && sym_tristate_within_range(sym, mod))
	190	printf("/m");
	191	if (oldval != yes && sym_tristate_within_range(sym, yes))
	192	printf("/y");
03d29122	193	if (menu_has_help(menu))
1da177e4 LT	194	printf("/?");
1da177e4 LT	195	printf("] ");
f82f3f94 RZ	196	if (!conf_askvalue(sym, sym_get_string_value(sym)))
f82f3f94 RZ	197	return 0;
1da177e4 LT	198	strip(line);
	199
	200	switch (line[0]) {
	201	case 'n':
	202	case 'N':
	203	newval = no;
	204	if (!line[1] \|\| !strcmp(&line[1], "o"))
	205	break;
	206	continue;
	207	case 'm':
	208	case 'M':
	209	newval = mod;
	210	if (!line[1])
	211	break;
	212	continue;
	213	case 'y':
	214	case 'Y':
	215	newval = yes;
	216	if (!line[1] \|\| !strcmp(&line[1], "es"))
	217	break;
	218	continue;
	219	case 0:
	220	newval = oldval;
	221	break;
	222	case '?':
	223	goto help;
	224	default:
	225	continue;
	226	}
	227	if (sym_set_tristate_value(sym, newval))
	228	return 0;
	229	help:
66c4bd80	230	print_help(menu);
1da177e4 LT	231	}
	232	}
	233
	234	static int conf_choice(struct menu *menu)
	235	{
	236	struct symbol sym, def_sym;
	237	struct menu *child;
1da177e4 LT	238	bool is_new;
	239
	240	sym = menu->sym;
1da177e4 LT	241	is_new = !sym_has_value(sym);
	242	if (sym_is_changable(sym)) {
	243	conf_sym(menu);
	244	sym_calc_value(sym);
	245	switch (sym_get_tristate_value(sym)) {
	246	case no:
	247	return 1;
	248	case mod:
	249	return 0;
	250	case yes:
	251	break;
	252	}
	253	} else {
	254	switch (sym_get_tristate_value(sym)) {
	255	case no:
	256	return 1;
	257	case mod:
534a450c	258	printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
1da177e4 LT	259	return 0;
	260	case yes:
	261	break;
	262	}
	263	}
	264
	265	while (1) {
	266	int cnt, def;
	267
534a450c	268	printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
1da177e4 LT	269	def_sym = sym_get_choice_value(sym);
1da177e4 LT	270	cnt = def = 0;
40aee729	271	line[0] = 0;
1da177e4 LT	272	for (child = menu->list; child; child = child->next) {
	273	if (!menu_is_visible(child))
	274	continue;
	275	if (!child->sym) {
534a450c	276	printf("%c %s\n", indent, '', _(menu_get_prompt(child)));
1da177e4 LT	277	continue;
	278	}
	279	cnt++;
	280	if (child->sym == def_sym) {
	281	def = cnt;
	282	printf("%*c", indent, '>');
	283	} else
	284	printf("%*c", indent, ' ');
534a450c	285	printf(" %d. %s", cnt, _(menu_get_prompt(child)));
1da177e4 LT	286	if (child->sym->name)
	287	printf(" (%s)", child->sym->name);
	288	if (!sym_has_value(child->sym))
534a450c	289	printf(_(" (NEW)"));
1da177e4 LT	290	printf("\n");
1da177e4 LT	291	}
534a450c	292	printf(_("%*schoice"), indent - 1, "");
1da177e4 LT	293	if (cnt == 1) {
	294	printf("[1]: 1\n");
	295	goto conf_childs;
	296	}
	297	printf("[1-%d", cnt);
03d29122	298	if (menu_has_help(menu))
1da177e4 LT	299	printf("?");
	300	printf("]: ");
	301	switch (input_mode) {
4062f1a4 SR	302	case oldconfig:
4062f1a4 SR	303	case silentoldconfig:
1da177e4 LT	304	if (!is_new) {
	305	cnt = def;
	306	printf("%d\n", cnt);
	307	break;
	308	}
	309	check_stdin();
d8fc3200	310	/* fall through */
4062f1a4	311	case oldaskconfig:
1da177e4	312	fflush(stdout);
4418a2b9	313	xfgets(line, 128, stdin);
1da177e4 LT	314	strip(line);
1da177e4 LT	315	if (line[0] == '?') {
66c4bd80	316	print_help(menu);
1da177e4 LT	317	continue;
	318	}
	319	if (!line[0])
	320	cnt = def;
	321	else if (isdigit(line[0]))
	322	cnt = atoi(line);
	323	else
	324	continue;
	325	break;
f443d2ec SR	326	default:
f443d2ec SR	327	break;
1da177e4 LT	328	}
	329
	330	conf_childs:
	331	for (child = menu->list; child; child = child->next) {
	332	if (!child->sym \|\| !menu_is_visible(child))
	333	continue;
	334	if (!--cnt)
	335	break;
	336	}
	337	if (!child)
	338	continue;
3ba41621	339	if (line[0] && line[strlen(line) - 1] == '?') {
66c4bd80	340	print_help(child);
1da177e4 LT	341	continue;
	342	}
	343	sym_set_choice_value(sym, child->sym);
f5eaa323	344	for (child = child->list; child; child = child->next) {
1da177e4	345	indent += 2;
f5eaa323	346	conf(child);
1da177e4 LT	347	indent -= 2;
	348	}
	349	return 1;
	350	}
	351	}
	352
	353	static void conf(struct menu *menu)
	354	{
	355	struct symbol *sym;
	356	struct property *prop;
	357	struct menu *child;
	358
	359	if (!menu_is_visible(menu))
	360	return;
	361
	362	sym = menu->sym;
	363	prop = menu->prompt;
	364	if (prop) {
	365	const char *prompt;
	366
	367	switch (prop->type) {
	368	case P_MENU:
4062f1a4	369	if ((input_mode == silentoldconfig \|\|
861b4ea4	370	input_mode == listnewconfig \|\|
fb16d891	371	input_mode == olddefconfig) &&
f0778c8c	372	rootEntry != menu) {
1da177e4 LT	373	check_conf(menu);
	374	return;
	375	}
d8fc3200	376	/* fall through */
1da177e4 LT	377	case P_COMMENT:
	378	prompt = menu_get_prompt(menu);
	379	if (prompt)
	380	printf("%c\n%c %s\n%*c\n",
	381	indent, '*',
534a450c	382	indent, '*', _(prompt),
1da177e4 LT	383	indent, '*');
	384	default:
	385	;
	386	}
	387	}
	388
	389	if (!sym)
	390	goto conf_childs;
	391
	392	if (sym_is_choice(sym)) {
	393	conf_choice(menu);
	394	if (sym->curr.tri != mod)
	395	return;
	396	goto conf_childs;
	397	}
	398
	399	switch (sym->type) {
	400	case S_INT:
	401	case S_HEX:
	402	case S_STRING:
	403	conf_string(menu);
	404	break;
	405	default:
	406	conf_sym(menu);
	407	break;
	408	}
	409
	410	conf_childs:
	411	if (sym)
	412	indent += 2;
	413	for (child = menu->list; child; child = child->next)
	414	conf(child);
	415	if (sym)
	416	indent -= 2;
	417	}
	418
	419	static void check_conf(struct menu *menu)
	420	{
	421	struct symbol *sym;
	422	struct menu *child;
	423
	424	if (!menu_is_visible(menu))
	425	return;
	426
	427	sym = menu->sym;
3f23ca2b RZ	428	if (sym && !sym_has_value(sym)) {
	429	if (sym_is_changable(sym) \|\|
	430	(sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
861b4ea4 SR	431	if (input_mode == listnewconfig) {
861b4ea4 SR	432	if (sym->name && !sym_is_choice_value(sym)) {
ffb5957b	433	printf("%s%s\n", CONFIG_, sym->name);
f0778c8c	434	}
fb16d891	435	} else if (input_mode != olddefconfig) {
f0778c8c AR	436	if (!conf_cnt++)
	437	printf(_("\n Restart config...\n*\n"));
	438	rootEntry = menu_get_parent_menu(menu);
	439	conf(rootEntry);
	440	}
1da177e4	441	}
1da177e4 LT	442	}
	443
	444	for (child = menu->list; child; child = child->next)
	445	check_conf(child);
	446	}
	447
4062f1a4 SR	448	static struct option long_opts[] = {
	449	{"oldaskconfig", no_argument, NULL, oldaskconfig},
	450	{"oldconfig", no_argument, NULL, oldconfig},
	451	{"silentoldconfig", no_argument, NULL, silentoldconfig},
	452	{"defconfig", optional_argument, NULL, defconfig},
7cf3d73b	453	{"savedefconfig", required_argument, NULL, savedefconfig},
4062f1a4 SR	454	{"allnoconfig", no_argument, NULL, allnoconfig},
	455	{"allyesconfig", no_argument, NULL, allyesconfig},
	456	{"allmodconfig", no_argument, NULL, allmodconfig},
0748cb3e	457	{"alldefconfig", no_argument, NULL, alldefconfig},
4062f1a4	458	{"randconfig", no_argument, NULL, randconfig},
861b4ea4	459	{"listnewconfig", no_argument, NULL, listnewconfig},
fb16d891 AL	460	{"olddefconfig", no_argument, NULL, olddefconfig},
	461	/*
	462	* oldnoconfig is an alias of olddefconfig, because people already
	463	* are dependent on its behavior(sets new symbols to their default
	464	* value but not 'n') with the counter-intuitive name.
	465	*/
	466	{"oldnoconfig", no_argument, NULL, olddefconfig},
4062f1a4 SR	467	{NULL, 0, NULL, 0}
	468	};
	469
32543999 AL	470	static void conf_usage(const char *progname)
	471	{
	472
	473	printf("Usage: %s [option] <kconfig-file>\n", progname);
	474	printf("[option] is _one_ of the following:\n");
	475	printf(" --listnewconfig List new options\n");
	476	printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
	477	printf(" --oldconfig Update a configuration using a provided .config as base\n");
	478	printf(" --silentoldconfig Same as oldconfig, but quietly, additionally update deps\n");
fb16d891 AL	479	printf(" --olddefconfig Same as silentoldconfig but sets new symbols to their default value\n");
fb16d891 AL	480	printf(" --oldnoconfig An alias of olddefconfig\n");
32543999 AL	481	printf(" --defconfig <file> New config with default defined in <file>\n");
	482	printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
	483	printf(" --allnoconfig New config where all options are answered with no\n");
	484	printf(" --allyesconfig New config where all options are answered with yes\n");
	485	printf(" --allmodconfig New config where all options are answered with mod\n");
	486	printf(" --alldefconfig New config with all symbols set to default\n");
	487	printf(" --randconfig New config with random answer to all options\n");
	488	}
	489
1da177e4 LT	490	int main(int ac, char **av)
1da177e4 LT	491	{
32543999	492	const char *progname = av[0];
2f4b489b	493	int opt;
275744cc	494	const char name, defconfig_file = NULL /* gcc uninit */;
1da177e4 LT	495	struct stat tmpstat;
1da177e4 LT	496
534a450c EG	497	setlocale(LC_ALL, "");
	498	bindtextdomain(PACKAGE, LOCALEDIR);
	499	textdomain(PACKAGE);
	500
62dc9899 BH	501	tty_stdio = isatty(0) && isatty(1) && isatty(2);
62dc9899 BH	502
c94d3fb0	503	while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
4062f1a4	504	input_mode = (enum input_mode)opt;
2f4b489b	505	switch (opt) {
4062f1a4	506	case silentoldconfig:
204c96f6	507	sync_kconfig = 1;
1da177e4	508	break;
4062f1a4	509	case defconfig:
7cf3d73b	510	case savedefconfig:
2f4b489b	511	defconfig_file = optarg;
1da177e4	512	break;
4062f1a4	513	case randconfig:
b0fe5510 IM	514	{
	515	struct timeval now;
	516	unsigned int seed;
	517
	518	/*
	519	* Use microseconds derived seed,
	520	* compensate for systems where it may be zero
	521	*/
	522	gettimeofday(&now, NULL);
	523
	524	seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
	525	srand(seed);
1da177e4	526	break;
b0fe5510	527	}
32543999 AL	528	case oldaskconfig:
	529	case oldconfig:
	530	case allnoconfig:
	531	case allyesconfig:
	532	case allmodconfig:
	533	case alldefconfig:
	534	case listnewconfig:
fb16d891	535	case olddefconfig:
32543999	536	break;
4062f1a4	537	case '?':
32543999	538	conf_usage(progname);
2f4b489b	539	exit(1);
4062f1a4	540	break;
1da177e4 LT	541	}
1da177e4 LT	542	}
2f4b489b	543	if (ac == optind) {
3b9fa093	544	printf(_("%s: Kconfig file missing\n"), av[0]);
32543999	545	conf_usage(progname);
250725aa	546	exit(1);
1da177e4	547	}
2f4b489b	548	name = av[optind];
1da177e4 LT	549	conf_parse(name);
1da177e4 LT	550	//zconfdump(stdout);
204c96f6	551	if (sync_kconfig) {
284026cd MH	552	name = conf_get_configname();
284026cd MH	553	if (stat(name, &tmpstat)) {
204c96f6	554	fprintf(stderr, _("***\n"
652cf982	555	"*** Configuration file \"%s\" not found!\n"
204c96f6	556	"***\n"
	557	"*** Please run some configurator (e.g. \"make oldconfig\" or\n"
	558	"*** \"make menuconfig\" or \"make xconfig\").\n"
284026cd	559	"***\n"), name);
204c96f6	560	exit(1);
	561	}
	562	}
	563
1da177e4	564	switch (input_mode) {
4062f1a4	565	case defconfig:
1da177e4 LT	566	if (!defconfig_file)
	567	defconfig_file = conf_get_default_confname();
	568	if (conf_read(defconfig_file)) {
534a450c	569	printf(_("***\n"
1da177e4	570	"*** Can't find default configuration \"%s\"!\n"
534a450c	571	"***\n"), defconfig_file);
1da177e4 LT	572	exit(1);
	573	}
	574	break;
7cf3d73b	575	case savedefconfig:
4062f1a4 SR	576	case silentoldconfig:
	577	case oldaskconfig:
	578	case oldconfig:
861b4ea4	579	case listnewconfig:
fb16d891	580	case olddefconfig:
1da177e4 LT	581	conf_read(NULL);
1da177e4 LT	582	break;
4062f1a4 SR	583	case allnoconfig:
	584	case allyesconfig:
	585	case allmodconfig:
0748cb3e	586	case alldefconfig:
4062f1a4	587	case randconfig:
90389160	588	name = getenv("KCONFIG_ALLCONFIG");
9f420bf0 EB	589	if (!name)
	590	break;
	591	if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
5efe241e EB	592	if (conf_read_simple(name, S_DEF_USER)) {
	593	fprintf(stderr,
	594	_("*** Can't read seed configuration \"%s\"!\n"),
	595	name);
	596	exit(1);
	597	}
90389160 RZ	598	break;
	599	}
	600	switch (input_mode) {
4062f1a4 SR	601	case allnoconfig: name = "allno.config"; break;
	602	case allyesconfig: name = "allyes.config"; break;
	603	case allmodconfig: name = "allmod.config"; break;
0748cb3e	604	case alldefconfig: name = "alldef.config"; break;
4062f1a4	605	case randconfig: name = "allrandom.config"; break;
90389160 RZ	606	default: break;
90389160 RZ	607	}
5efe241e EB	608	if (conf_read_simple(name, S_DEF_USER) &&
	609	conf_read_simple("all.config", S_DEF_USER)) {
	610	fprintf(stderr,
	611	_("*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n"),
	612	name);
	613	exit(1);
	614	}
90389160	615	break;
1da177e4 LT	616	default:
	617	break;
	618	}
204c96f6	619
	620	if (sync_kconfig) {
	621	if (conf_get_changed()) {
	622	name = getenv("KCONFIG_NOSILENTUPDATE");
	623	if (name && *name) {
	624	fprintf(stderr,
652cf982	625	_("\n*** The configuration requires explicit update.\n\n"));
204c96f6	626	return 1;
	627	}
	628	}
62dc9899	629	valid_stdin = tty_stdio;
204c96f6	630	}
204c96f6	631
f443d2ec	632	switch (input_mode) {
4062f1a4	633	case allnoconfig:
f443d2ec SR	634	conf_set_all_new_symbols(def_no);
f443d2ec SR	635	break;
4062f1a4	636	case allyesconfig:
f443d2ec SR	637	conf_set_all_new_symbols(def_yes);
f443d2ec SR	638	break;
4062f1a4	639	case allmodconfig:
f443d2ec SR	640	conf_set_all_new_symbols(def_mod);
f443d2ec SR	641	break;
0748cb3e SR	642	case alldefconfig:
	643	conf_set_all_new_symbols(def_default);
	644	break;
4062f1a4	645	case randconfig:
f443d2ec SR	646	conf_set_all_new_symbols(def_random);
f443d2ec SR	647	break;
4062f1a4	648	case defconfig:
09748e17 SR	649	conf_set_all_new_symbols(def_default);
09748e17 SR	650	break;
7cf3d73b SR	651	case savedefconfig:
7cf3d73b SR	652	break;
4062f1a4	653	case oldaskconfig:
204c96f6	654	rootEntry = &rootmenu;
204c96f6	655	conf(&rootmenu);
4062f1a4	656	input_mode = silentoldconfig;
204c96f6	657	/* fall through */
14828349	658	case oldconfig:
861b4ea4	659	case listnewconfig:
fb16d891	660	case olddefconfig:
4062f1a4	661	case silentoldconfig:
204c96f6	662	/* Update until a loop caused no more changes */
	663	do {
	664	conf_cnt = 0;
	665	check_conf(&rootmenu);
f0778c8c	666	} while (conf_cnt &&
861b4ea4	667	(input_mode != listnewconfig &&
fb16d891	668	input_mode != olddefconfig));
f443d2ec SR	669	break;
f443d2ec SR	670	}
1da177e4	671
204c96f6	672	if (sync_kconfig) {
	673	/* silentoldconfig is used during the build so we shall update autoconf.
	674	* All other commands are only used to generate a config.
	675	*/
	676	if (conf_get_changed() && conf_write(NULL)) {
652cf982	677	fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
204c96f6	678	exit(1);
	679	}
	680	if (conf_write_autoconf()) {
652cf982	681	fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
204c96f6	682	return 1;
204c96f6	683	}
7cf3d73b SR	684	} else if (input_mode == savedefconfig) {
	685	if (conf_write_defconfig(defconfig_file)) {
	686	fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
	687	defconfig_file);
	688	return 1;
	689	}
861b4ea4	690	} else if (input_mode != listnewconfig) {
204c96f6	691	if (conf_write(NULL)) {
652cf982	692	fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
204c96f6	693	exit(1);
204c96f6	694	}
c955ccaf	695	}
861b4ea4	696	return 0;
1da177e4	697	}
ab63f58f	698
4418a2b9 JS	699	/*
	700	* Helper function to facilitate fgets() by Jean Sacren.
	701	*/
ab63f58f	702	void xfgets(char str, int size, FILE in)
4418a2b9 JS	703	{
	704	if (fgets(str, size, in) == NULL)
	705	fprintf(stderr, "\nError in reading or end of file.\n");
	706	}