scripts/kconfig/conf.c

   1 /*
   2  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
   3  * Released under the terms of the GNU GPL v2.0.
   4  */
   5
   6 #define _XOPEN_SOURCE 700
   7
   8 #include <ctype.h>
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <unistd.h>
  13 #include <time.h>
  14 #include <sys/stat.h>
  15
  16 #define LKC_DIRECT_LINK
  17 #include "lkc.h"
  18
  19 static void conf(struct menu *menu);
  20 static void check_conf(struct menu *menu);
  21
  22 enum {
  23         ask_all,
  24         ask_new,
  25         ask_silent,
  26         set_default,
  27         set_yes,
  28         set_mod,
  29         set_no,
  30         set_random
  31 } input_mode = ask_all;
  32 char *defconfig_file;
  33
  34 static int indent = 1;
  35 static int valid_stdin = 1;
  36 static int conf_cnt;
  37 static char line[128];
  38 static struct menu *rootEntry;
  39
  40 static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
  41
  42 static void strip(char *str)
  43 {
  44         char *p = str;
  45         int l;
  46
  47         while ((isspace(*p)))
  48                 p++;
  49         l = strlen(p);
  50         if (p != str)
  51                 memmove(str, p, l + 1);
  52         if (!l)
  53                 return;
  54         p = str + l - 1;
  55         while ((isspace(*p)))
  56                 *p-- = 0;
  57 }
  58
  59 static void check_stdin(void)
  60 {
  61         if (!valid_stdin && input_mode == ask_silent) {
  62                 printf(_("aborted!\n\n"));
  63                 printf(_("Console input/output is redirected. "));
  64                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
  65                 exit(1);
  66         }
  67 }
  68
  69 static void conf_askvalue(struct symbol *sym, const char *def)
  70 {
  71         enum symbol_type type = sym_get_type(sym);
  72         tristate val;
  73
  74         if (!sym_has_value(sym))
  75                 printf("(NEW) ");
  76
  77         line[0] = '\n';
  78         line[1] = 0;
  79
  80         if (!sym_is_changable(sym)) {
  81                 printf("%s\n", def);
  82                 line[0] = '\n';
  83                 line[1] = 0;
  84                 return;
  85         }
  86
  87         switch (input_mode) {
  88         case set_no:
  89         case set_mod:
  90         case set_yes:
  91         case set_random:
  92                 if (sym_has_value(sym)) {
  93                         printf("%s\n", def);
  94                         return;
  95                 }
  96                 break;
  97         case ask_new:
  98         case ask_silent:
  99                 if (sym_has_value(sym)) {
 100                         printf("%s\n", def);
 101                         return;
 102                 }
 103                 check_stdin();
 104         case ask_all:
 105                 fflush(stdout);
 106                 fgets(line, 128, stdin);
 107                 return;
 108         case set_default:
 109                 printf("%s\n", def);
 110                 return;
 111         default:
 112                 break;
 113         }
 114
 115         switch (type) {
 116         case S_INT:
 117         case S_HEX:
 118         case S_STRING:
 119                 printf("%s\n", def);
 120                 return;
 121         default:
 122                 ;
 123         }
 124         switch (input_mode) {
 125         case set_yes:
 126                 if (sym_tristate_within_range(sym, yes)) {
 127                         line[0] = 'y';
 128                         line[1] = '\n';
 129                         line[2] = 0;
 130                         break;
 131                 }
 132         case set_mod:
 133                 if (type == S_TRISTATE) {
 134                         if (sym_tristate_within_range(sym, mod)) {
 135                                 line[0] = 'm';
 136                                 line[1] = '\n';
 137                                 line[2] = 0;
 138                                 break;
 139                         }
 140                 } else {
 141                         if (sym_tristate_within_range(sym, yes)) {
 142                                 line[0] = 'y';
 143                                 line[1] = '\n';
 144                                 line[2] = 0;
 145                                 break;
 146                         }
 147                 }
 148         case set_no:
 149                 if (sym_tristate_within_range(sym, no)) {
 150                         line[0] = 'n';
 151                         line[1] = '\n';
 152                         line[2] = 0;
 153                         break;
 154                 }
 155         case set_random:
 156                 do {
 157                         val = (tristate)(random() % 3);
 158                 } while (!sym_tristate_within_range(sym, val));
 159                 switch (val) {
 160                 case no: line[0] = 'n'; break;
 161                 case mod: line[0] = 'm'; break;
 162                 case yes: line[0] = 'y'; break;
 163                 }
 164                 line[1] = '\n';
 165                 line[2] = 0;
 166                 break;
 167         default:
 168                 break;
 169         }
 170         printf("%s", line);
 171 }
 172
 173 int conf_string(struct menu *menu)
 174 {
 175         struct symbol *sym = menu->sym;
 176         const char *def;
 177
 178         while (1) {
 179                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
 180                 printf("(%s) ", sym->name);
 181                 def = sym_get_string_value(sym);
 182                 if (sym_get_string_value(sym))
 183                         printf("[%s] ", def);
 184                 conf_askvalue(sym, def);
 185                 switch (line[0]) {
 186                 case '\n':
 187                         break;
 188                 case '?':
 189                         /* print help */
 190                         if (line[1] == '\n') {
 191                                 printf("\n%s\n", menu->sym->help ? menu->sym->help : nohelp_text);
 192                                 def = NULL;
 193                                 break;
 194                         }
 195                 default:
 196                         line[strlen(line)-1] = 0;
 197                         def = line;
 198                 }
 199                 if (def && sym_set_string_value(sym, def))
 200                         return 0;
 201         }
 202 }
 203
 204 static int conf_sym(struct menu *menu)
 205 {
 206         struct symbol *sym = menu->sym;
 207         tristate oldval, newval;
 208         const char *help;
 209
 210         while (1) {
 211                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
 212                 if (sym->name)
 213                         printf("(%s) ", sym->name);
 214                 putchar('[');
 215                 oldval = sym_get_tristate_value(sym);
 216                 switch (oldval) {
 217                 case no:
 218                         putchar('N');
 219                         break;
 220                 case mod:
 221                         putchar('M');
 222                         break;
 223                 case yes:
 224                         putchar('Y');
 225                         break;
 226                 }
 227                 if (oldval != no && sym_tristate_within_range(sym, no))
 228                         printf("/n");
 229                 if (oldval != mod && sym_tristate_within_range(sym, mod))
 230                         printf("/m");
 231                 if (oldval != yes && sym_tristate_within_range(sym, yes))
 232                         printf("/y");
 233                 if (sym->help)
 234                         printf("/?");
 235                 printf("] ");
 236                 conf_askvalue(sym, sym_get_string_value(sym));
 237                 strip(line);
 238
 239                 switch (line[0]) {
 240                 case 'n':
 241                 case 'N':
 242                         newval = no;
 243                         if (!line[1] || !strcmp(&line[1], "o"))
 244                                 break;
 245                         continue;
 246                 case 'm':
 247                 case 'M':
 248                         newval = mod;
 249                         if (!line[1])
 250                                 break;
 251                         continue;
 252                 case 'y':
 253                 case 'Y':
 254                         newval = yes;
 255                         if (!line[1] || !strcmp(&line[1], "es"))
 256                                 break;
 257                         continue;
 258                 case 0:
 259                         newval = oldval;
 260                         break;
 261                 case '?':
 262                         goto help;
 263                 default:
 264                         continue;
 265                 }
 266                 if (sym_set_tristate_value(sym, newval))
 267                         return 0;
 268 help:
 269                 help = nohelp_text;
 270                 if (sym->help)
 271                         help = sym->help;
 272                 printf("\n%s\n", help);
 273         }
 274 }
 275
 276 static int conf_choice(struct menu *menu)
 277 {
 278         struct symbol *sym, *def_sym;
 279         struct menu *child;
 280         bool is_new;
 281
 282         sym = menu->sym;
 283         is_new = !sym_has_value(sym);
 284         if (sym_is_changable(sym)) {
 285                 conf_sym(menu);
 286                 sym_calc_value(sym);
 287                 switch (sym_get_tristate_value(sym)) {
 288                 case no:
 289                         return 1;
 290                 case mod:
 291                         return 0;
 292                 case yes:
 293                         break;
 294                 }
 295         } else {
 296                 switch (sym_get_tristate_value(sym)) {
 297                 case no:
 298                         return 1;
 299                 case mod:
 300                         printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
 301                         return 0;
 302                 case yes:
 303                         break;
 304                 }
 305         }
 306
 307         while (1) {
 308                 int cnt, def;
 309
 310                 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
 311                 def_sym = sym_get_choice_value(sym);
 312                 cnt = def = 0;
 313                 line[0] = 0;
 314                 for (child = menu->list; child; child = child->next) {
 315                         if (!menu_is_visible(child))
 316                                 continue;
 317                         if (!child->sym) {
 318                                 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
 319                                 continue;
 320                         }
 321                         cnt++;
 322                         if (child->sym == def_sym) {
 323                                 def = cnt;
 324                                 printf("%*c", indent, '>');
 325                         } else
 326                                 printf("%*c", indent, ' ');
 327                         printf(" %d. %s", cnt, menu_get_prompt(child));
 328                         if (child->sym->name)
 329                                 printf(" (%s)", child->sym->name);
 330                         if (!sym_has_value(child->sym))
 331                                 printf(" (NEW)");
 332                         printf("\n");
 333                 }
 334                 printf("%*schoice", indent - 1, "");
 335                 if (cnt == 1) {
 336                         printf("[1]: 1\n");
 337                         goto conf_childs;
 338                 }
 339                 printf("[1-%d", cnt);
 340                 if (sym->help)
 341                         printf("?");
 342                 printf("]: ");
 343                 switch (input_mode) {
 344                 case ask_new:
 345                 case ask_silent:
 346                         if (!is_new) {
 347                                 cnt = def;
 348                                 printf("%d\n", cnt);
 349                                 break;
 350                         }
 351                         check_stdin();
 352                 case ask_all:
 353                         fflush(stdout);
 354                         fgets(line, 128, stdin);
 355                         strip(line);
 356                         if (line[0] == '?') {
 357                                 printf("\n%s\n", menu->sym->help ?
 358                                         menu->sym->help : nohelp_text);
 359                                 continue;
 360                         }
 361                         if (!line[0])
 362                                 cnt = def;
 363                         else if (isdigit(line[0]))
 364                                 cnt = atoi(line);
 365                         else
 366                                 continue;
 367                         break;
 368                 case set_random:
 369                         def = (random() % cnt) + 1;
 370                 case set_default:
 371                 case set_yes:
 372                 case set_mod:
 373                 case set_no:
 374                         cnt = def;
 375                         printf("%d\n", cnt);
 376                         break;
 377                 }
 378
 379         conf_childs:
 380                 for (child = menu->list; child; child = child->next) {
 381                         if (!child->sym || !menu_is_visible(child))
 382                                 continue;
 383                         if (!--cnt)
 384                                 break;
 385                 }
 386                 if (!child)
 387                         continue;
 388                 if (strlen(line) > 0 && line[strlen(line) - 1] == '?') {
 389                         printf("\n%s\n", child->sym->help ?
 390                                 child->sym->help : nohelp_text);
 391                         continue;
 392                 }
 393                 sym_set_choice_value(sym, child->sym);
 394                 if (child->list) {
 395                         indent += 2;
 396                         conf(child->list);
 397                         indent -= 2;
 398                 }
 399                 return 1;
 400         }
 401 }
 402
 403 static void conf(struct menu *menu)
 404 {
 405         struct symbol *sym;
 406         struct property *prop;
 407         struct menu *child;
 408
 409         if (!menu_is_visible(menu))
 410                 return;
 411
 412         sym = menu->sym;
 413         prop = menu->prompt;
 414         if (prop) {
 415                 const char *prompt;
 416
 417                 switch (prop->type) {
 418                 case P_MENU:
 419                         if (input_mode == ask_silent && rootEntry != menu) {
 420                                 check_conf(menu);
 421                                 return;
 422                         }
 423                 case P_COMMENT:
 424                         prompt = menu_get_prompt(menu);
 425                         if (prompt)
 426                                 printf("%*c\n%*c %s\n%*c\n",
 427                                         indent, '*',
 428                                         indent, '*', prompt,
 429                                         indent, '*');
 430                 default:
 431                         ;
 432                 }
 433         }
 434
 435         if (!sym)
 436                 goto conf_childs;
 437
 438         if (sym_is_choice(sym)) {
 439                 conf_choice(menu);
 440                 if (sym->curr.tri != mod)
 441                         return;
 442                 goto conf_childs;
 443         }
 444
 445         switch (sym->type) {
 446         case S_INT:
 447         case S_HEX:
 448         case S_STRING:
 449                 conf_string(menu);
 450                 break;
 451         default:
 452                 conf_sym(menu);
 453                 break;
 454         }
 455
 456 conf_childs:
 457         if (sym)
 458                 indent += 2;
 459         for (child = menu->list; child; child = child->next)
 460                 conf(child);
 461         if (sym)
 462                 indent -= 2;
 463 }
 464
 465 static void check_conf(struct menu *menu)
 466 {
 467         struct symbol *sym;
 468         struct menu *child;
 469
 470         if (!menu_is_visible(menu))
 471                 return;
 472
 473         sym = menu->sym;
 474         if (sym && !sym_has_value(sym)) {
 475                 if (sym_is_changable(sym) ||
 476                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
 477                         if (!conf_cnt++)
 478                                 printf(_("*\n* Restart config...\n*\n"));
 479                         rootEntry = menu_get_parent_menu(menu);
 480                         conf(rootEntry);
 481                 }
 482         }
 483
 484         for (child = menu->list; child; child = child->next)
 485                 check_conf(child);
 486 }
 487
 488 int main(int ac, char **av)
 489 {
 490         int i = 1;
 491         const char *name;
 492         struct stat tmpstat;
 493
 494         if (ac > i && av[i][0] == '-') {
 495                 switch (av[i++][1]) {
 496                 case 'o':
 497                         input_mode = ask_new;
 498                         break;
 499                 case 's':
 500                         input_mode = ask_silent;
 501                         valid_stdin = isatty(0); //bbox: && isatty(1) && isatty(2);
 502                         break;
 503                 case 'd':
 504                         input_mode = set_default;
 505                         break;
 506                 case 'D':
 507                         input_mode = set_default;
 508                         defconfig_file = av[i++];
 509                         if (!defconfig_file) {
 510                                 printf(_("%s: No default config file specified\n"),
 511                                         av[0]);
 512                                 exit(1);
 513                         }
 514                         break;
 515                 case 'n':
 516                         input_mode = set_no;
 517                         break;
 518                 case 'm':
 519                         input_mode = set_mod;
 520                         break;
 521                 case 'y':
 522                         input_mode = set_yes;
 523                         break;
 524                 case 'r':
 525                         input_mode = set_random;
 526                         srandom(time(NULL));
 527                         break;
 528                 case 'h':
 529                 case '?':
 530                         fprintf(stderr, "See README for usage info\n");
 531                         exit(0);
 532                 }
 533         }
 534         name = av[i];
 535         if (!name) {
 536                 printf(_("%s: Kconfig file missing\n"), av[0]);
 537         }
 538         conf_parse(name);
 539         //zconfdump(stdout);
 540         switch (input_mode) {
 541         case set_default:
 542                 if (!defconfig_file)
 543                         defconfig_file = conf_get_default_confname();
 544                 if (conf_read(defconfig_file)) {
 545                         printf("***\n"
 546                                 "*** Can't find default configuration \"%s\"!\n"
 547                                 "***\n", defconfig_file);
 548                         exit(1);
 549                 }
 550                 break;
 551         case ask_silent:
 552                 if (stat(".config", &tmpstat)) {
 553                         printf(_("***\n"
 554                                 "*** You have not yet configured busybox!\n"
 555                                 "***\n"
 556                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
 557                                 "*** \"make menuconfig\" or \"make defconfig\").\n"
 558                                 "***\n"));
 559                         exit(1);
 560                 }
 561         case ask_all:
 562         case ask_new:
 563                 conf_read(NULL);
 564                 break;
 565         case set_no:
 566         case set_mod:
 567         case set_yes:
 568         case set_random:
 569                 name = getenv("KCONFIG_ALLCONFIG");
 570                 if (name && !stat(name, &tmpstat)) {
 571                         conf_read_simple(name);
 572                         break;
 573                 }
 574                 switch (input_mode) {
 575                 case set_no:     name = "allno.config"; break;
 576                 case set_mod:    name = "allmod.config"; break;
 577                 case set_yes:    name = "allyes.config"; break;
 578                 case set_random: name = "allrandom.config"; break;
 579                 default: break;
 580                 }
 581                 if (!stat(name, &tmpstat))
 582                         conf_read_simple(name);
 583                 else if (!stat("all.config", &tmpstat))
 584                         conf_read_simple("all.config");
 585                 break;
 586         default:
 587                 break;
 588         }
 589
 590         if (input_mode != ask_silent) {
 591                 rootEntry = &rootmenu;
 592                 conf(&rootmenu);
 593                 if (input_mode == ask_all) {
 594                         input_mode = ask_silent;
 595                         valid_stdin = 1;
 596                 }
 597         }
 598         do {
 599                 conf_cnt = 0;
 600                 check_conf(&rootmenu);
 601         } while (conf_cnt);
 602         if (conf_write(NULL)) {
 603                 fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
 604                 return 1;
 605         }
 606         return 0;
 607 }