Viewing file:  conf.c (11.74 KB) -rw-r--r--
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/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
* Released under the terms of the GNU GPL v2.0.
*/
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include <sys/stat.h>
#define LKC_DIRECT_LINK
#include "lkc.h"
static void conf(struct menu *menu);
static void check_conf(struct menu *menu);
enum {
ask_all,
ask_new,
ask_silent,
set_default,
set_yes,
set_mod,
set_no,
set_random
} input_mode = ask_all;
char *defconfig_file;
static int indent = 1;
static int valid_stdin = 1;
static int conf_cnt;
static char line[128];
static struct menu *rootEntry;
static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
static const char *get_help(struct menu *menu)
{
if (menu_has_help(menu))
return menu_get_help(menu);
else
return nohelp_text;
}
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 && input_mode == ask_silent) {
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);
tristate val;
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 set_no:
case set_mod:
case set_yes:
case set_random:
if (sym_has_value(sym)) {
printf("%s\n", def);
return 0;
}
break;
case ask_new:
case ask_silent:
if (sym_has_value(sym)) {
printf("%s\n", def);
return 0;
}
check_stdin();
case ask_all:
fflush(stdout);
fgets(line, 128, stdin);
return 1;
case set_default:
printf("%s\n", def);
return 1;
default:
break;
}
switch (type) {
case S_INT:
case S_HEX:
case S_STRING:
printf("%s\n", def);
return 1;
default:
;
}
switch (input_mode) {
case set_yes:
if (sym_tristate_within_range(sym, yes)) {
line[0] = 'y';
line[1] = '\n';
line[2] = 0;
break;
}
case set_mod:
if (type == S_TRISTATE) {
if (sym_tristate_within_range(sym, mod)) {
line[0] = 'm';
line[1] = '\n';
line[2] = 0;
break;
}
} else {
if (sym_tristate_within_range(sym, yes)) {
line[0] = 'y';
line[1] = '\n';
line[2] = 0;
break;
}
}
case set_no:
if (sym_tristate_within_range(sym, no)) {
line[0] = 'n';
line[1] = '\n';
line[2] = 0;
break;
}
case set_random:
do {
val = (tristate)(random() % 3);
} while (!sym_tristate_within_range(sym, val));
switch (val) {
case no: line[0] = 'n'; break;
case mod: line[0] = 'm'; break;
case yes: line[0] = 'y'; break;
}
line[1] = '\n';
line[2] = 0;
break;
default:
break;
}
printf("%s", line);
return 1;
}
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') {
printf("\n%s\n", get_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;
int type;
tristate oldval, newval;
while (1) {
printf("%*s%s ", indent - 1, "", menu->prompt->text);
if (sym->name)
printf("(%s) ", sym->name);
type = sym_get_type(sym);
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:
printf("\n%s\n", get_help(menu));
}
}
static int conf_choice(struct menu *menu)
{
struct symbol *sym, *def_sym;
struct menu *child;
int type;
bool is_new;
sym = menu->sym;
type = sym_get_type(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 ask_new:
case ask_silent:
if (!is_new) {
cnt = def;
printf("%d\n", cnt);
break;
}
check_stdin();
case ask_all:
fflush(stdout);
fgets(line, 128, stdin);
strip(line);
if (line[0] == '?') {
printf("\n%s\n", get_help(menu));
continue;
}
if (!line[0])
cnt = def;
else if (isdigit(line[0]))
cnt = atoi(line);
else
continue;
break;
case set_random:
if (is_new)
def = (random() % cnt) + 1;
case set_default:
case set_yes:
case set_mod:
case set_no:
cnt = def;
printf("%d\n", cnt);
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[strlen(line) - 1] == '?') {
printf("\n%s\n", get_help(child));
continue;
}
sym_set_choice_value(sym, child->sym);
if (child->list) {
indent += 2;
conf(child->list);
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 == ask_silent && 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 (!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);
}
int main(int ac, char **av)
{
int i = 1;
const char *name;
struct stat tmpstat;
if (ac > i && av[i][0] == '-') {
switch (av[i++][1]) {
case 'o':
input_mode = ask_new;
break;
case 's':
input_mode = ask_silent;
valid_stdin = isatty(0) && isatty(1) && isatty(2);
break;
case 'd':
input_mode = set_default;
break;
case 'D':
input_mode = set_default;
defconfig_file = av[i++];
if (!defconfig_file) {
printf(_("%s: No default config file specified\n"),
av[0]);
exit(1);
}
break;
case 'n':
input_mode = set_no;
break;
case 'm':
input_mode = set_mod;
break;
case 'y':
input_mode = set_yes;
break;
case 'r':
input_mode = set_random;
srandom(time(NULL));
break;
case 'h':
case '?':
fprintf(stderr, "See README for usage info\n");
exit(0);
}
}
name = av[i];
if (!name) {
printf(_("%s: Kconfig file missing\n"), av[0]);
exit(1);
}
conf_parse(name);
//zconfdump(stdout);
switch (input_mode) {
case set_default:
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 ask_silent:
if (stat(".config", &tmpstat)) {
printf(_("***\n"
"*** You have not yet configured your kernel!\n"
"*** (missing kernel .config file)\n"
"***\n"
"*** Please run some configurator (e.g. \"make oldconfig\" or\n"
"*** \"make menuconfig\" or \"make xconfig\").\n"
"***\n"));
exit(1);
}
case ask_all:
case ask_new:
conf_read(NULL);
break;
case set_no:
case set_mod:
case set_yes:
case set_random:
name = getenv("KCONFIG_ALLCONFIG");
if (name && !stat(name, &tmpstat)) {
conf_read_simple(name, S_DEF_USER);
break;
}
switch (input_mode) {
case set_no: name = "allno.config"; break;
case set_mod: name = "allmod.config"; break;
case set_yes: name = "allyes.config"; break;
case set_random: 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 (input_mode != ask_silent) {
rootEntry = &rootmenu;
conf(&rootmenu);
if (input_mode == ask_all) {
input_mode = ask_silent;
valid_stdin = 1;
}
} else if (conf_get_changed()) {
name = getenv("KCONFIG_NOSILENTUPDATE");
if (name && *name) {
fprintf(stderr, _("\n*** Kernel configuration requires explicit update.\n\n"));
return 1;
}
} else
goto skip_check;
do {
conf_cnt = 0;
check_conf(&rootmenu);
} while (conf_cnt);
if (conf_write(NULL)) {
fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
return 1;
}
skip_check:
if (input_mode == ask_silent && conf_write_autoconf()) {
fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
return 1;
}
return 0;
}
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