3ba4162115
Commit 40aee729b3 ('kconfig: fix default value for choice input')
fixed some cases where kconfig would select the wrong option from a
choice with a single valid option and thus enter an infinite loop.
However, this broke the test for user input of the form 'N?', because
when kconfig selects the single valid option the input is zero-length
and the test will read the byte before the input buffer. If this
happens to contain '?' (as it will in a mips build on Debian unstable
today) then kconfig again enters an infinite loop.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable@kernel.org [2.6.17+]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
655 lines
13 KiB
C
655 lines
13 KiB
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>
|
|
|
|
#define LKC_DIRECT_LINK
|
|
#include "lkc.h"
|
|
|
|
static void conf(struct menu *menu);
|
|
static void check_conf(struct menu *menu);
|
|
|
|
enum input_mode {
|
|
oldaskconfig,
|
|
silentoldconfig,
|
|
oldconfig,
|
|
allnoconfig,
|
|
allyesconfig,
|
|
allmodconfig,
|
|
alldefconfig,
|
|
randconfig,
|
|
defconfig,
|
|
savedefconfig,
|
|
listnewconfig,
|
|
oldnoconfig,
|
|
} input_mode = oldaskconfig;
|
|
|
|
char *defconfig_file;
|
|
|
|
static int indent = 1;
|
|
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();
|
|
case oldaskconfig:
|
|
fflush(stdout);
|
|
xfgets(line, 128, stdin);
|
|
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;
|
|
}
|
|
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();
|
|
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 == oldnoconfig) &&
|
|
rootEntry != menu) {
|
|
check_conf(menu);
|
|
return;
|
|
}
|
|
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 != oldnoconfig) {
|
|
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},
|
|
{"oldnoconfig", no_argument, NULL, oldnoconfig},
|
|
{NULL, 0, NULL, 0}
|
|
};
|
|
|
|
int main(int ac, char **av)
|
|
{
|
|
int opt;
|
|
const char *name;
|
|
struct stat tmpstat;
|
|
|
|
setlocale(LC_ALL, "");
|
|
bindtextdomain(PACKAGE, LOCALEDIR);
|
|
textdomain(PACKAGE);
|
|
|
|
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 '?':
|
|
fprintf(stderr, _("See README for usage info\n"));
|
|
exit(1);
|
|
break;
|
|
}
|
|
}
|
|
if (ac == optind) {
|
|
printf(_("%s: Kconfig file missing\n"), av[0]);
|
|
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 oldnoconfig:
|
|
conf_read(NULL);
|
|
break;
|
|
case allnoconfig:
|
|
case allyesconfig:
|
|
case allmodconfig:
|
|
case alldefconfig:
|
|
case randconfig:
|
|
name = getenv("KCONFIG_ALLCONFIG");
|
|
if (name && !stat(name, &tmpstat)) {
|
|
conf_read_simple(name, S_DEF_USER);
|
|
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 (!stat(name, &tmpstat))
|
|
conf_read_simple(name, S_DEF_USER);
|
|
else if (!stat("all.config", &tmpstat))
|
|
conf_read_simple("all.config", S_DEF_USER);
|
|
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 = isatty(0) && isatty(1) && isatty(2);
|
|
}
|
|
|
|
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 oldnoconfig:
|
|
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 != oldnoconfig));
|
|
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(str, size, in)
|
|
char *str;
|
|
int size;
|
|
FILE *in;
|
|
{
|
|
if (fgets(str, size, in) == NULL)
|
|
fprintf(stderr, "\nError in reading or end of file.\n");
|
|
}
|