scripts/kconfig/conf.c - kernel/msm-4.9 - Gitiles

 /*
  * 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 <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[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;
 			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");
 }
	/*
	* 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 <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[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;
	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");
	}