[deliverable/linux.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 <limits.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 <errno.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[PATH_MAX];
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, sizeof(line), 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, sizeof(line), 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 [-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, "s", long_opts, NULL)) != -1) {
		if (opt == 's') {
			conf_set_message_callback(NULL);
			continue;
		}
		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;
			char *seed_env;

			/*
			 * 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));

			seed_env = getenv("KCONFIG_SEED");
			if( seed_env && *seed_env ) {
				char *endp;
				int tmp = (int)strtol(seed_env, &endp, 0);
				if (*endp == '\0') {
					seed = tmp;
				}
			}
			fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
			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:
		/* Really nothing to do in this loop */
		while (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>
74dba809	8	#include <limits.h>
9dfb563b	9	#include <stdio.h>
75ff4309	10	#include <stdlib.h>
1da177e4	11	#include <string.h>
1da177e4	12	#include <time.h>
75ff4309	13	#include <unistd.h>
4062f1a4	14	#include <getopt.h>
1da177e4	15	#include <sys/stat.h>
b0fe5510	16	#include <sys/time.h>
0d8024c6	17	#include <errno.h>
1da177e4	18
1da177e4 LT	19	#include "lkc.h"
	20
	21	static void conf(struct menu *menu);
	22	static void check_conf(struct menu *menu);
ab63f58f	23	static void xfgets(char str, int size, FILE in);
1da177e4	24
4062f1a4 SR	25	enum input_mode {
	26	oldaskconfig,
	27	silentoldconfig,
	28	oldconfig,
	29	allnoconfig,
	30	allyesconfig,
	31	allmodconfig,
0748cb3e	32	alldefconfig,
4062f1a4 SR	33	randconfig,
4062f1a4 SR	34	defconfig,
7cf3d73b	35	savedefconfig,
861b4ea4	36	listnewconfig,
fb16d891	37	olddefconfig,
4062f1a4 SR	38	} input_mode = oldaskconfig;
4062f1a4 SR	39
1da177e4	40	static int indent = 1;
62dc9899	41	static int tty_stdio;
1da177e4	42	static int valid_stdin = 1;
204c96f6	43	static int sync_kconfig;
1da177e4	44	static int conf_cnt;
74dba809	45	static char line[PATH_MAX];
1da177e4 LT	46	static struct menu *rootEntry;
1da177e4 LT	47
66c4bd80	48	static void print_help(struct menu *menu)
03d29122	49	{
66c4bd80 CR	50	struct gstr help = str_new();
	51
	52	menu_get_ext_help(menu, &help);
	53
	54	printf("\n%s\n", str_get(&help));
	55	str_free(&help);
03d29122 SR	56	}
03d29122 SR	57
48b9d03c	58	static void strip(char *str)
1da177e4	59	{
48b9d03c	60	char *p = str;
1da177e4 LT	61	int l;
	62
	63	while ((isspace(*p)))
	64	p++;
	65	l = strlen(p);
	66	if (p != str)
	67	memmove(str, p, l + 1);
	68	if (!l)
	69	return;
	70	p = str + l - 1;
	71	while ((isspace(*p)))
	72	*p-- = 0;
	73	}
	74
	75	static void check_stdin(void)
	76	{
204c96f6	77	if (!valid_stdin) {
3b9fa093 ACM	78	printf(_("aborted!\n\n"));
	79	printf(_("Console input/output is redirected. "));
	80	printf(_("Run 'make oldconfig' to update configuration.\n\n"));
1da177e4 LT	81	exit(1);
	82	}
	83	}
	84
f82f3f94	85	static int conf_askvalue(struct symbol sym, const char def)
1da177e4 LT	86	{
1da177e4 LT	87	enum symbol_type type = sym_get_type(sym);
1da177e4 LT	88
1da177e4 LT	89	if (!sym_has_value(sym))
534a450c	90	printf(_("(NEW) "));
1da177e4 LT	91
	92	line[0] = '\n';
	93	line[1] = 0;
	94
	95	if (!sym_is_changable(sym)) {
	96	printf("%s\n", def);
	97	line[0] = '\n';
	98	line[1] = 0;
f82f3f94	99	return 0;
1da177e4 LT	100	}
	101
	102	switch (input_mode) {
4062f1a4 SR	103	case oldconfig:
4062f1a4 SR	104	case silentoldconfig:
1da177e4 LT	105	if (sym_has_value(sym)) {
1da177e4 LT	106	printf("%s\n", def);
f82f3f94	107	return 0;
1da177e4 LT	108	}
1da177e4 LT	109	check_stdin();
d8fc3200	110	/* fall through */
4062f1a4	111	case oldaskconfig:
1da177e4	112	fflush(stdout);
74dba809	113	xfgets(line, sizeof(line), stdin);
62dc9899 BH	114	if (!tty_stdio)
62dc9899 BH	115	printf("\n");
f82f3f94	116	return 1;
1da177e4 LT	117	default:
	118	break;
	119	}
	120
	121	switch (type) {
	122	case S_INT:
	123	case S_HEX:
	124	case S_STRING:
	125	printf("%s\n", def);
f82f3f94	126	return 1;
1da177e4 LT	127	default:
	128	;
	129	}
1da177e4	130	printf("%s", line);
f82f3f94	131	return 1;
1da177e4 LT	132	}
1da177e4 LT	133
4356f489	134	static int conf_string(struct menu *menu)
1da177e4 LT	135	{
1da177e4 LT	136	struct symbol *sym = menu->sym;
03d29122	137	const char *def;
1da177e4 LT	138
1da177e4 LT	139	while (1) {
534a450c	140	printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
1da177e4 LT	141	printf("(%s) ", sym->name);
	142	def = sym_get_string_value(sym);
	143	if (sym_get_string_value(sym))
	144	printf("[%s] ", def);
f82f3f94 RZ	145	if (!conf_askvalue(sym, def))
f82f3f94 RZ	146	return 0;
1da177e4 LT	147	switch (line[0]) {
	148	case '\n':
	149	break;
	150	case '?':
	151	/* print help */
	152	if (line[1] == '\n') {
66c4bd80	153	print_help(menu);
1da177e4 LT	154	def = NULL;
	155	break;
	156	}
d8fc3200	157	/* fall through */
1da177e4 LT	158	default:
	159	line[strlen(line)-1] = 0;
	160	def = line;
	161	}
	162	if (def && sym_set_string_value(sym, def))
	163	return 0;
	164	}
	165	}
	166
	167	static int conf_sym(struct menu *menu)
	168	{
	169	struct symbol *sym = menu->sym;
1da177e4	170	tristate oldval, newval;
1da177e4 LT	171
1da177e4 LT	172	while (1) {
534a450c	173	printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
1da177e4 LT	174	if (sym->name)
1da177e4 LT	175	printf("(%s) ", sym->name);
1da177e4 LT	176	putchar('[');
	177	oldval = sym_get_tristate_value(sym);
	178	switch (oldval) {
	179	case no:
	180	putchar('N');
	181	break;
	182	case mod:
	183	putchar('M');
	184	break;
	185	case yes:
	186	putchar('Y');
	187	break;
	188	}
	189	if (oldval != no && sym_tristate_within_range(sym, no))
	190	printf("/n");
	191	if (oldval != mod && sym_tristate_within_range(sym, mod))
	192	printf("/m");
	193	if (oldval != yes && sym_tristate_within_range(sym, yes))
	194	printf("/y");
03d29122	195	if (menu_has_help(menu))
1da177e4 LT	196	printf("/?");
1da177e4 LT	197	printf("] ");
f82f3f94 RZ	198	if (!conf_askvalue(sym, sym_get_string_value(sym)))
f82f3f94 RZ	199	return 0;
1da177e4 LT	200	strip(line);
	201
	202	switch (line[0]) {
	203	case 'n':
	204	case 'N':
	205	newval = no;
	206	if (!line[1] \|\| !strcmp(&line[1], "o"))
	207	break;
	208	continue;
	209	case 'm':
	210	case 'M':
	211	newval = mod;
	212	if (!line[1])
	213	break;
	214	continue;
	215	case 'y':
	216	case 'Y':
	217	newval = yes;
	218	if (!line[1] \|\| !strcmp(&line[1], "es"))
	219	break;
	220	continue;
	221	case 0:
	222	newval = oldval;
	223	break;
	224	case '?':
	225	goto help;
	226	default:
	227	continue;
	228	}
	229	if (sym_set_tristate_value(sym, newval))
	230	return 0;
	231	help:
66c4bd80	232	print_help(menu);
1da177e4 LT	233	}
	234	}
	235
	236	static int conf_choice(struct menu *menu)
	237	{
	238	struct symbol sym, def_sym;
	239	struct menu *child;
1da177e4 LT	240	bool is_new;
	241
	242	sym = menu->sym;
1da177e4 LT	243	is_new = !sym_has_value(sym);
	244	if (sym_is_changable(sym)) {
	245	conf_sym(menu);
	246	sym_calc_value(sym);
	247	switch (sym_get_tristate_value(sym)) {
	248	case no:
	249	return 1;
	250	case mod:
	251	return 0;
	252	case yes:
	253	break;
	254	}
	255	} else {
	256	switch (sym_get_tristate_value(sym)) {
	257	case no:
	258	return 1;
	259	case mod:
534a450c	260	printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
1da177e4 LT	261	return 0;
	262	case yes:
	263	break;
	264	}
	265	}
	266
	267	while (1) {
	268	int cnt, def;
	269
534a450c	270	printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
1da177e4 LT	271	def_sym = sym_get_choice_value(sym);
1da177e4 LT	272	cnt = def = 0;
40aee729	273	line[0] = 0;
1da177e4 LT	274	for (child = menu->list; child; child = child->next) {
	275	if (!menu_is_visible(child))
	276	continue;
	277	if (!child->sym) {
534a450c	278	printf("%c %s\n", indent, '', _(menu_get_prompt(child)));
1da177e4 LT	279	continue;
	280	}
	281	cnt++;
	282	if (child->sym == def_sym) {
	283	def = cnt;
	284	printf("%*c", indent, '>');
	285	} else
	286	printf("%*c", indent, ' ');
534a450c	287	printf(" %d. %s", cnt, _(menu_get_prompt(child)));
1da177e4 LT	288	if (child->sym->name)
	289	printf(" (%s)", child->sym->name);
	290	if (!sym_has_value(child->sym))
534a450c	291	printf(_(" (NEW)"));
1da177e4 LT	292	printf("\n");
1da177e4 LT	293	}
534a450c	294	printf(_("%*schoice"), indent - 1, "");
1da177e4 LT	295	if (cnt == 1) {
	296	printf("[1]: 1\n");
	297	goto conf_childs;
	298	}
	299	printf("[1-%d", cnt);
03d29122	300	if (menu_has_help(menu))
1da177e4 LT	301	printf("?");
	302	printf("]: ");
	303	switch (input_mode) {
4062f1a4 SR	304	case oldconfig:
4062f1a4 SR	305	case silentoldconfig:
1da177e4 LT	306	if (!is_new) {
	307	cnt = def;
	308	printf("%d\n", cnt);
	309	break;
	310	}
	311	check_stdin();
d8fc3200	312	/* fall through */
4062f1a4	313	case oldaskconfig:
1da177e4	314	fflush(stdout);
74dba809	315	xfgets(line, sizeof(line), stdin);
1da177e4 LT	316	strip(line);
1da177e4 LT	317	if (line[0] == '?') {
66c4bd80	318	print_help(menu);
1da177e4 LT	319	continue;
	320	}
	321	if (!line[0])
	322	cnt = def;
	323	else if (isdigit(line[0]))
	324	cnt = atoi(line);
	325	else
	326	continue;
	327	break;
f443d2ec SR	328	default:
f443d2ec SR	329	break;
1da177e4 LT	330	}
	331
	332	conf_childs:
	333	for (child = menu->list; child; child = child->next) {
	334	if (!child->sym \|\| !menu_is_visible(child))
	335	continue;
	336	if (!--cnt)
	337	break;
	338	}
	339	if (!child)
	340	continue;
3ba41621	341	if (line[0] && line[strlen(line) - 1] == '?') {
66c4bd80	342	print_help(child);
1da177e4 LT	343	continue;
	344	}
	345	sym_set_choice_value(sym, child->sym);
f5eaa323	346	for (child = child->list; child; child = child->next) {
1da177e4	347	indent += 2;
f5eaa323	348	conf(child);
1da177e4 LT	349	indent -= 2;
	350	}
	351	return 1;
	352	}
	353	}
	354
	355	static void conf(struct menu *menu)
	356	{
	357	struct symbol *sym;
	358	struct property *prop;
	359	struct menu *child;
	360
	361	if (!menu_is_visible(menu))
	362	return;
	363
	364	sym = menu->sym;
	365	prop = menu->prompt;
	366	if (prop) {
	367	const char *prompt;
	368
	369	switch (prop->type) {
	370	case P_MENU:
4062f1a4	371	if ((input_mode == silentoldconfig \|\|
861b4ea4	372	input_mode == listnewconfig \|\|
fb16d891	373	input_mode == olddefconfig) &&
f0778c8c	374	rootEntry != menu) {
1da177e4 LT	375	check_conf(menu);
	376	return;
	377	}
d8fc3200	378	/* fall through */
1da177e4 LT	379	case P_COMMENT:
	380	prompt = menu_get_prompt(menu);
	381	if (prompt)
	382	printf("%c\n%c %s\n%*c\n",
	383	indent, '*',
534a450c	384	indent, '*', _(prompt),
1da177e4 LT	385	indent, '*');
	386	default:
	387	;
	388	}
	389	}
	390
	391	if (!sym)
	392	goto conf_childs;
	393
	394	if (sym_is_choice(sym)) {
	395	conf_choice(menu);
	396	if (sym->curr.tri != mod)
	397	return;
	398	goto conf_childs;
	399	}
	400
	401	switch (sym->type) {
	402	case S_INT:
	403	case S_HEX:
	404	case S_STRING:
	405	conf_string(menu);
	406	break;
	407	default:
	408	conf_sym(menu);
	409	break;
	410	}
	411
	412	conf_childs:
	413	if (sym)
	414	indent += 2;
	415	for (child = menu->list; child; child = child->next)
	416	conf(child);
	417	if (sym)
	418	indent -= 2;
	419	}
	420
	421	static void check_conf(struct menu *menu)
	422	{
	423	struct symbol *sym;
	424	struct menu *child;
	425
	426	if (!menu_is_visible(menu))
	427	return;
	428
	429	sym = menu->sym;
3f23ca2b RZ	430	if (sym && !sym_has_value(sym)) {
	431	if (sym_is_changable(sym) \|\|
	432	(sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
861b4ea4 SR	433	if (input_mode == listnewconfig) {
861b4ea4 SR	434	if (sym->name && !sym_is_choice_value(sym)) {
ffb5957b	435	printf("%s%s\n", CONFIG_, sym->name);
f0778c8c	436	}
fb16d891	437	} else if (input_mode != olddefconfig) {
f0778c8c AR	438	if (!conf_cnt++)
	439	printf(_("\n Restart config...\n*\n"));
	440	rootEntry = menu_get_parent_menu(menu);
	441	conf(rootEntry);
	442	}
1da177e4	443	}
1da177e4 LT	444	}
	445
	446	for (child = menu->list; child; child = child->next)
	447	check_conf(child);
	448	}
	449
4062f1a4 SR	450	static struct option long_opts[] = {
	451	{"oldaskconfig", no_argument, NULL, oldaskconfig},
	452	{"oldconfig", no_argument, NULL, oldconfig},
	453	{"silentoldconfig", no_argument, NULL, silentoldconfig},
	454	{"defconfig", optional_argument, NULL, defconfig},
7cf3d73b	455	{"savedefconfig", required_argument, NULL, savedefconfig},
4062f1a4 SR	456	{"allnoconfig", no_argument, NULL, allnoconfig},
	457	{"allyesconfig", no_argument, NULL, allyesconfig},
	458	{"allmodconfig", no_argument, NULL, allmodconfig},
0748cb3e	459	{"alldefconfig", no_argument, NULL, alldefconfig},
4062f1a4	460	{"randconfig", no_argument, NULL, randconfig},
861b4ea4	461	{"listnewconfig", no_argument, NULL, listnewconfig},
fb16d891 AL	462	{"olddefconfig", no_argument, NULL, olddefconfig},
	463	/*
	464	* oldnoconfig is an alias of olddefconfig, because people already
	465	* are dependent on its behavior(sets new symbols to their default
	466	* value but not 'n') with the counter-intuitive name.
	467	*/
	468	{"oldnoconfig", no_argument, NULL, olddefconfig},
4062f1a4 SR	469	{NULL, 0, NULL, 0}
	470	};
	471
32543999 AL	472	static void conf_usage(const char *progname)
	473	{
	474
0a1f00a1	475	printf("Usage: %s [-s] [option] <kconfig-file>\n", progname);
32543999 AL	476	printf("[option] is _one_ of the following:\n");
	477	printf(" --listnewconfig List new options\n");
	478	printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
	479	printf(" --oldconfig Update a configuration using a provided .config as base\n");
	480	printf(" --silentoldconfig Same as oldconfig, but quietly, additionally update deps\n");
fb16d891 AL	481	printf(" --olddefconfig Same as silentoldconfig but sets new symbols to their default value\n");
fb16d891 AL	482	printf(" --oldnoconfig An alias of olddefconfig\n");
32543999 AL	483	printf(" --defconfig <file> New config with default defined in <file>\n");
	484	printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
	485	printf(" --allnoconfig New config where all options are answered with no\n");
	486	printf(" --allyesconfig New config where all options are answered with yes\n");
	487	printf(" --allmodconfig New config where all options are answered with mod\n");
	488	printf(" --alldefconfig New config with all symbols set to default\n");
	489	printf(" --randconfig New config with random answer to all options\n");
	490	}
	491
1da177e4 LT	492	int main(int ac, char **av)
1da177e4 LT	493	{
32543999	494	const char *progname = av[0];
2f4b489b	495	int opt;
275744cc	496	const char name, defconfig_file = NULL /* gcc uninit */;
1da177e4 LT	497	struct stat tmpstat;
1da177e4 LT	498
534a450c EG	499	setlocale(LC_ALL, "");
	500	bindtextdomain(PACKAGE, LOCALEDIR);
	501	textdomain(PACKAGE);
	502
62dc9899 BH	503	tty_stdio = isatty(0) && isatty(1) && isatty(2);
62dc9899 BH	504
0a1f00a1 MM	505	while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
	506	if (opt == 's') {
	507	conf_set_message_callback(NULL);
	508	continue;
	509	}
4062f1a4	510	input_mode = (enum input_mode)opt;
2f4b489b	511	switch (opt) {
4062f1a4	512	case silentoldconfig:
204c96f6	513	sync_kconfig = 1;
1da177e4	514	break;
4062f1a4	515	case defconfig:
7cf3d73b	516	case savedefconfig:
2f4b489b	517	defconfig_file = optarg;
1da177e4	518	break;
4062f1a4	519	case randconfig:
b0fe5510 IM	520	{
	521	struct timeval now;
	522	unsigned int seed;
0d8024c6	523	char *seed_env;
b0fe5510 IM	524
	525	/*
	526	* Use microseconds derived seed,
	527	* compensate for systems where it may be zero
	528	*/
	529	gettimeofday(&now, NULL);
b0fe5510	530	seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
0d8024c6 YM	531
	532	seed_env = getenv("KCONFIG_SEED");
	533	if( seed_env && *seed_env ) {
	534	char *endp;
e85ac124	535	int tmp = (int)strtol(seed_env, &endp, 0);
0d8024c6 YM	536	if (*endp == '\0') {
	537	seed = tmp;
	538	}
	539	}
a5f6d795	540	fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
b0fe5510	541	srand(seed);
1da177e4	542	break;
b0fe5510	543	}
32543999 AL	544	case oldaskconfig:
	545	case oldconfig:
	546	case allnoconfig:
	547	case allyesconfig:
	548	case allmodconfig:
	549	case alldefconfig:
	550	case listnewconfig:
fb16d891	551	case olddefconfig:
32543999	552	break;
4062f1a4	553	case '?':
32543999	554	conf_usage(progname);
2f4b489b	555	exit(1);
4062f1a4	556	break;
1da177e4 LT	557	}
1da177e4 LT	558	}
2f4b489b	559	if (ac == optind) {
3b9fa093	560	printf(_("%s: Kconfig file missing\n"), av[0]);
32543999	561	conf_usage(progname);
250725aa	562	exit(1);
1da177e4	563	}
2f4b489b	564	name = av[optind];
1da177e4 LT	565	conf_parse(name);
1da177e4 LT	566	//zconfdump(stdout);
204c96f6	567	if (sync_kconfig) {
284026cd MH	568	name = conf_get_configname();
284026cd MH	569	if (stat(name, &tmpstat)) {
204c96f6	570	fprintf(stderr, _("***\n"
652cf982	571	"*** Configuration file \"%s\" not found!\n"
204c96f6	572	"***\n"
	573	"*** Please run some configurator (e.g. \"make oldconfig\" or\n"
	574	"*** \"make menuconfig\" or \"make xconfig\").\n"
284026cd	575	"***\n"), name);
204c96f6	576	exit(1);
	577	}
	578	}
	579
1da177e4	580	switch (input_mode) {
4062f1a4	581	case defconfig:
1da177e4 LT	582	if (!defconfig_file)
	583	defconfig_file = conf_get_default_confname();
	584	if (conf_read(defconfig_file)) {
534a450c	585	printf(_("***\n"
1da177e4	586	"*** Can't find default configuration \"%s\"!\n"
534a450c	587	"***\n"), defconfig_file);
1da177e4 LT	588	exit(1);
	589	}
	590	break;
7cf3d73b	591	case savedefconfig:
4062f1a4 SR	592	case silentoldconfig:
	593	case oldaskconfig:
	594	case oldconfig:
861b4ea4	595	case listnewconfig:
fb16d891	596	case olddefconfig:
1da177e4 LT	597	conf_read(NULL);
1da177e4 LT	598	break;
4062f1a4 SR	599	case allnoconfig:
	600	case allyesconfig:
	601	case allmodconfig:
0748cb3e	602	case alldefconfig:
4062f1a4	603	case randconfig:
90389160	604	name = getenv("KCONFIG_ALLCONFIG");
9f420bf0 EB	605	if (!name)
	606	break;
	607	if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
5efe241e EB	608	if (conf_read_simple(name, S_DEF_USER)) {
	609	fprintf(stderr,
	610	_("*** Can't read seed configuration \"%s\"!\n"),
	611	name);
	612	exit(1);
	613	}
90389160 RZ	614	break;
	615	}
	616	switch (input_mode) {
4062f1a4 SR	617	case allnoconfig: name = "allno.config"; break;
	618	case allyesconfig: name = "allyes.config"; break;
	619	case allmodconfig: name = "allmod.config"; break;
0748cb3e	620	case alldefconfig: name = "alldef.config"; break;
4062f1a4	621	case randconfig: name = "allrandom.config"; break;
90389160 RZ	622	default: break;
90389160 RZ	623	}
5efe241e EB	624	if (conf_read_simple(name, S_DEF_USER) &&
	625	conf_read_simple("all.config", S_DEF_USER)) {
	626	fprintf(stderr,
	627	_("*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n"),
	628	name);
	629	exit(1);
	630	}
90389160	631	break;
1da177e4 LT	632	default:
	633	break;
	634	}
204c96f6	635
	636	if (sync_kconfig) {
	637	if (conf_get_changed()) {
	638	name = getenv("KCONFIG_NOSILENTUPDATE");
	639	if (name && *name) {
	640	fprintf(stderr,
652cf982	641	_("\n*** The configuration requires explicit update.\n\n"));
204c96f6	642	return 1;
	643	}
	644	}
62dc9899	645	valid_stdin = tty_stdio;
204c96f6	646	}
204c96f6	647
f443d2ec	648	switch (input_mode) {
4062f1a4	649	case allnoconfig:
f443d2ec SR	650	conf_set_all_new_symbols(def_no);
f443d2ec SR	651	break;
4062f1a4	652	case allyesconfig:
f443d2ec SR	653	conf_set_all_new_symbols(def_yes);
f443d2ec SR	654	break;
4062f1a4	655	case allmodconfig:
f443d2ec SR	656	conf_set_all_new_symbols(def_mod);
f443d2ec SR	657	break;
0748cb3e SR	658	case alldefconfig:
	659	conf_set_all_new_symbols(def_default);
	660	break;
4062f1a4	661	case randconfig:
3b9a19e0 YM	662	/* Really nothing to do in this loop */
3b9a19e0 YM	663	while (conf_set_all_new_symbols(def_random)) ;
f443d2ec	664	break;
4062f1a4	665	case defconfig:
09748e17 SR	666	conf_set_all_new_symbols(def_default);
09748e17 SR	667	break;
7cf3d73b SR	668	case savedefconfig:
7cf3d73b SR	669	break;
4062f1a4	670	case oldaskconfig:
204c96f6	671	rootEntry = &rootmenu;
204c96f6	672	conf(&rootmenu);
4062f1a4	673	input_mode = silentoldconfig;
204c96f6	674	/* fall through */
14828349	675	case oldconfig:
861b4ea4	676	case listnewconfig:
fb16d891	677	case olddefconfig:
4062f1a4	678	case silentoldconfig:
204c96f6	679	/* Update until a loop caused no more changes */
	680	do {
	681	conf_cnt = 0;
	682	check_conf(&rootmenu);
f0778c8c	683	} while (conf_cnt &&
861b4ea4	684	(input_mode != listnewconfig &&
fb16d891	685	input_mode != olddefconfig));
f443d2ec SR	686	break;
f443d2ec SR	687	}
1da177e4	688
204c96f6	689	if (sync_kconfig) {
	690	/* silentoldconfig is used during the build so we shall update autoconf.
	691	* All other commands are only used to generate a config.
	692	*/
	693	if (conf_get_changed() && conf_write(NULL)) {
652cf982	694	fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
204c96f6	695	exit(1);
	696	}
	697	if (conf_write_autoconf()) {
652cf982	698	fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
204c96f6	699	return 1;
204c96f6	700	}
7cf3d73b SR	701	} else if (input_mode == savedefconfig) {
	702	if (conf_write_defconfig(defconfig_file)) {
	703	fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
bb66fc67	704	defconfig_file);
7cf3d73b SR	705	return 1;
7cf3d73b SR	706	}
861b4ea4	707	} else if (input_mode != listnewconfig) {
204c96f6	708	if (conf_write(NULL)) {
652cf982	709	fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
204c96f6	710	exit(1);
204c96f6	711	}
c955ccaf	712	}
861b4ea4	713	return 0;
1da177e4	714	}
ab63f58f	715
4418a2b9 JS	716	/*
	717	* Helper function to facilitate fgets() by Jean Sacren.
	718	*/
ab63f58f	719	void xfgets(char str, int size, FILE in)
4418a2b9 JS	720	{
	721	if (fgets(str, size, in) == NULL)
	722	fprintf(stderr, "\nError in reading or end of file.\n");
	723	}