busybox/scripts/config/conf.c
Eric Andersen c9f20d9fb9 Yet another major rework of the BusyBox config system, using the considerably
modified Kbuild system I put into uClibc.  With this, there should be no more
need to modify Rules.mak since I've moved all the interesting options into the
config system.  I think I've got everything updated, but you never know, I may
have made some mistakes, so watch closely.
 -Erik
2002-12-05 08:41:41 +00:00

567 lines
9.9 KiB
C

/*
* 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 <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;
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[] = "Sorry, no help available for this option yet.\n";
#if 0
static void printc(int ch)
{
static int sep = 0;
if (!sep) {
putchar('[');
sep = 1;
} else if (ch)
putchar('/');
if (!ch) {
putchar(']');
putchar(' ');
sep = 0;
} else
putchar(ch);
}
#endif
static void printo(const char *o)
{
static int sep = 0;
if (!sep) {
putchar('(');
sep = 1;
} else if (o) {
putchar(',');
putchar(' ');
}
if (!o) {
putchar(')');
putchar(' ');
sep = 0;
} else
printf("%s", o);
}
static void strip(char *str)
{
char *p = str;
int l;
while ((isspace((int)*p)))
p++;
l = strlen(p);
if (p != str)
memmove(str, p, l + 1);
if (!l)
return;
p = str + l - 1;
while ((isspace((int)*p)))
*p-- = 0;
}
static void 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;
switch (input_mode) {
case ask_new:
case ask_silent:
if (sym_has_value(sym)) {
printf("%s\n", def);
return;
}
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);
}
case ask_all:
fflush(stdout);
fgets(line, 128, stdin);
return;
case set_default:
printf("%s\n", def);
return;
default:
break;
}
switch (type) {
case S_INT:
case S_HEX:
case S_STRING:
printf("%s\n", def);
return;
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);
}
int conf_string(struct menu *menu)
{
struct symbol *sym = menu->sym;
const char *def, *help;
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);
conf_askvalue(sym, def);
switch (line[0]) {
case '\n':
break;
case '?':
/* print help */
if (line[1] == 0) {
help = nohelp_text;
if (menu->sym->help)
help = menu->sym->help;
printf("\n%s\n", menu->sym->help);
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;
const char *help;
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 (sym->help)
printf("/?");
printf("] ");
conf_askvalue(sym, sym_get_string_value(sym));
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:
help = nohelp_text;
if (sym->help)
help = sym->help;
printf("\n%s\n", help);
}
}
static int conf_choice(struct menu *menu)
{
struct symbol *sym, *def_sym;
struct menu *cmenu, *def_menu;
const char *help;
int type, len;
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 {
sym->def = sym->curr;
if (S_TRI(sym->curr) == mod) {
printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
return 0;
}
}
while (1) {
printf("%*s%s ", indent - 1, "", menu_get_prompt(menu));
def_sym = sym_get_choice_value(sym);
def_menu = NULL;
for (cmenu = menu->list; cmenu; cmenu = cmenu->next) {
if (!menu_is_visible(cmenu))
continue;
printo(menu_get_prompt(cmenu));
if (cmenu->sym == def_sym)
def_menu = cmenu;
}
printo(NULL);
if (def_menu)
printf("[%s] ", menu_get_prompt(def_menu));
else {
printf("\n");
return 1;
}
switch (input_mode) {
case ask_new:
case ask_silent:
case ask_all:
conf_askvalue(sym, menu_get_prompt(def_menu));
strip(line);
break;
default:
line[0] = 0;
printf("\n");
}
if (line[0] == '?' && !line[1]) {
help = nohelp_text;
if (menu->sym->help)
help = menu->sym->help;
printf("\n%s\n", help);
continue;
}
if (line[0]) {
len = strlen(line);
line[len] = 0;
def_menu = NULL;
for (cmenu = menu->list; cmenu; cmenu = cmenu->next) {
if (!cmenu->sym || !menu_is_visible(cmenu))
continue;
if (!strncasecmp(line, menu_get_prompt(cmenu), len)) {
def_menu = cmenu;
break;
}
}
}
if (def_menu) {
sym_set_choice_value(sym, def_menu->sym);
if (def_menu->list) {
indent += 2;
conf(def_menu->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 (S_TRI(sym->curr) != 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)
goto conf_childs;
if (sym_is_choice(sym)) {
if (!sym_has_value(sym)) {
if (!conf_cnt++)
printf("*\n* Restart config...\n*\n");
rootEntry = menu_get_parent_menu(menu);
conf(rootEntry);
}
if (sym_get_tristate_value(sym) != mod)
return;
goto conf_childs;
}
if (!sym_has_value(sym)) {
if (!conf_cnt++)
printf("*\n* Restart config...\n*\n");
rootEntry = menu_get_parent_menu(menu);
conf(rootEntry);
}
conf_childs:
for (child = menu->list; child; child = child->next)
check_conf(child);
}
int main(int ac, char **av)
{
const char *name;
struct stat tmpstat;
if (ac > 1 && av[1][0] == '-') {
switch (av[1][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 '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 '?':
printf("%s [-o|-s] config\n", av[0]);
exit(0);
}
name = av[2];
} else
name = av[1];
conf_parse(name);
//zconfdump(stdout);
switch (input_mode) {
case set_default:
name = conf_get_default_confname();
if (conf_read(name)) {
printf("***\n"
"*** Can't find default configuration \"%s\"!\n"
"***\n", name);
exit(1);
}
break;
case ask_silent:
if (stat(".config", &tmpstat)) {
printf("***\n"
"*** You have not yet configured BusyBox!\n"
"***\n"
"*** Please run some configurator (e.g. \"make oldconfig\"\n"
"*** or \"make menuconfig\").\n"
"***\n");
exit(1);
}
case ask_all:
case ask_new:
conf_read(NULL);
break;
default:
break;
}
if (input_mode != ask_silent) {
rootEntry = &rootmenu;
conf(&rootmenu);
if (input_mode == ask_all) {
input_mode = ask_silent;
valid_stdin = 1;
}
}
do {
conf_cnt = 0;
check_conf(&rootmenu);
} while (conf_cnt);
conf_write(NULL);
return 0;
}