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 #include <locale.h>
   7 #include <ctype.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <time.h>
  12 #include <unistd.h>
  13 #include <sys/stat.h>
  14
  15 #define LKC_DIRECT_LINK
  16 #include "lkc.h"
  17
  18 static void conf(struct menu *menu);
  19 static void check_conf(struct menu *menu);
  20
  21 enum {
  22         ask_all,
  23         ask_new,
  24         ask_silent,
  25         set_default,
  26         set_yes,
  27         set_mod,
  28         set_no,
  29         set_random
  30 } input_mode = ask_all;
  31 char *defconfig_file;
  32
  33 static int indent = 1;
  34 static int valid_stdin = 1;
  35 static int conf_cnt;
  36 static char line[128];
  37 static struct menu *rootEntry;
  38
  39 static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
  40
  41 static const char *get_help(struct menu *menu)
  42 {
  43         if (menu_has_help(menu))
  44                 return _(menu_get_help(menu));
  45         else
  46                 return nohelp_text;
  47 }
  48
  49 static void strip(char *str)
  50 {
  51         char *p = str;
  52         int l;
  53
  54         while ((isspace(*p)))
  55                 p++;
  56         l = strlen(p);
  57         if (p != str)
  58                 memmove(str, p, l + 1);
  59         if (!l)
  60                 return;
  61         p = str + l - 1;
  62         while ((isspace(*p)))
  63                 *p-- = 0;
  64 }
  65
  66 static void check_stdin(void)
  67 {
  68         if (!valid_stdin && input_mode == ask_silent) {
  69                 printf(_("aborted!\n\n"));
  70                 printf(_("Console input/output is redirected. "));
  71                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
  72                 exit(1);
  73         }
  74 }
  75
  76 static int conf_askvalue(struct symbol *sym, const char *def)
  77 {
  78         enum symbol_type type = sym_get_type(sym);
  79         tristate val;
  80
  81         if (!sym_has_value(sym))
  82                 printf(_("(NEW) "));
  83
  84         line[0] = '\n';
  85         line[1] = 0;
  86
  87         if (!sym_is_changable(sym)) {
  88                 printf("%s\n", def);
  89                 line[0] = '\n';
  90                 line[1] = 0;
  91                 return 0;
  92         }
  93
  94         switch (input_mode) {
  95         case set_no:
  96         case set_mod:
  97         case set_yes:
  98         case set_random:
  99                 if (sym_has_value(sym)) {
 100                         printf("%s\n", def);
 101                         return 0;
 102                 }
 103                 break;
 104         case ask_new:
 105         case ask_silent:
 106                 if (sym_has_value(sym)) {
 107                         printf("%s\n", def);
 108                         return 0;
 109                 }
 110                 check_stdin();
 111         case ask_all:
 112                 fflush(stdout);
 113                 fgets(line, 128, stdin);
 114                 return 1;
 115         case set_default:
 116                 printf("%s\n", def);
 117                 return 1;
 118         default:
 119                 break;
 120         }
 121
 122         switch (type) {
 123         case S_INT:
 124         case S_HEX:
 125         case S_STRING:
 126                 printf("%s\n", def);
 127                 return 1;
 128         default:
 129                 ;
 130         }
 131         switch (input_mode) {
 132         case set_yes:
 133                 if (sym_tristate_within_range(sym, yes)) {
 134                         line[0] = 'y';
 135                         line[1] = '\n';
 136                         line[2] = 0;
 137                         break;
 138                 }
 139         case set_mod:
 140                 if (type == S_TRISTATE) {
 141                         if (sym_tristate_within_range(sym, mod)) {
 142                                 line[0] = 'm';
 143                                 line[1] = '\n';
 144                                 line[2] = 0;
 145                                 break;
 146                         }
 147                 } else {
 148                         if (sym_tristate_within_range(sym, yes)) {
 149                                 line[0] = 'y';
 150                                 line[1] = '\n';
 151                                 line[2] = 0;
 152                                 break;
 153                         }
 154                 }
 155         case set_no:
 156                 if (sym_tristate_within_range(sym, no)) {
 157                         line[0] = 'n';
 158                         line[1] = '\n';
 159                         line[2] = 0;
 160                         break;
 161                 }
 162         case set_random:
 163                 do {
 164                         val = (tristate)(rand() % 3);
 165                 } while (!sym_tristate_within_range(sym, val));
 166                 switch (val) {
 167                 case no: line[0] = 'n'; break;
 168                 case mod: line[0] = 'm'; break;
 169                 case yes: line[0] = 'y'; break;
 170                 }
 171                 line[1] = '\n';
 172                 line[2] = 0;
 173                 break;
 174         default:
 175                 break;
 176         }
 177         printf("%s", line);
 178         return 1;
 179 }
 180
 181 int conf_string(struct menu *menu)
 182 {
 183         struct symbol *sym = menu->sym;
 184         const char *def;
 185
 186         while (1) {
 187                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 188                 printf("(%s) ", sym->name);
 189                 def = sym_get_string_value(sym);
 190                 if (sym_get_string_value(sym))
 191                         printf("[%s] ", def);
 192                 if (!conf_askvalue(sym, def))
 193                         return 0;
 194                 switch (line[0]) {
 195                 case '\n':
 196                         break;
 197                 case '?':
 198                         /* print help */
 199                         if (line[1] == '\n') {
 200                                 printf("\n%s\n", get_help(menu));
 201                                 def = NULL;
 202                                 break;
 203                         }
 204                 default:
 205                         line[strlen(line)-1] = 0;
 206                         def = line;
 207                 }
 208                 if (def && sym_set_string_value(sym, def))
 209                         return 0;
 210         }
 211 }
 212
 213 static int conf_sym(struct menu *menu)
 214 {
 215         struct symbol *sym = menu->sym;
 216         int type;
 217         tristate oldval, newval;
 218
 219         while (1) {
 220                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 221                 if (sym->name)
 222                         printf("(%s) ", sym->name);
 223                 type = sym_get_type(sym);
 224                 putchar('[');
 225                 oldval = sym_get_tristate_value(sym);
 226                 switch (oldval) {
 227                 case no:
 228                         putchar('N');
 229                         break;
 230                 case mod:
 231                         putchar('M');
 232                         break;
 233                 case yes:
 234                         putchar('Y');
 235                         break;
 236                 }
 237                 if (oldval != no && sym_tristate_within_range(sym, no))
 238                         printf("/n");
 239                 if (oldval != mod && sym_tristate_within_range(sym, mod))
 240                         printf("/m");
 241                 if (oldval != yes && sym_tristate_within_range(sym, yes))
 242                         printf("/y");
 243                 if (menu_has_help(menu))
 244                         printf("/?");
 245                 printf("] ");
 246                 if (!conf_askvalue(sym, sym_get_string_value(sym)))
 247                         return 0;
 248                 strip(line);
 249
 250                 switch (line[0]) {
 251                 case 'n':
 252                 case 'N':
 253                         newval = no;
 254                         if (!line[1] || !strcmp(&line[1], "o"))
 255                                 break;
 256                         continue;
 257                 case 'm':
 258                 case 'M':
 259                         newval = mod;
 260                         if (!line[1])
 261                                 break;
 262                         continue;
 263                 case 'y':
 264                 case 'Y':
 265                         newval = yes;
 266                         if (!line[1] || !strcmp(&line[1], "es"))
 267                                 break;
 268                         continue;
 269                 case 0:
 270                         newval = oldval;
 271                         break;
 272                 case '?':
 273                         goto help;
 274                 default:
 275                         continue;
 276                 }
 277                 if (sym_set_tristate_value(sym, newval))
 278                         return 0;
 279 help:
 280                 printf("\n%s\n", get_help(menu));
 281         }
 282 }
 283
 284 static int conf_choice(struct menu *menu)
 285 {
 286         struct symbol *sym, *def_sym;
 287         struct menu *child;
 288         int type;
 289         bool is_new;
 290
 291         sym = menu->sym;
 292         type = sym_get_type(sym);
 293         is_new = !sym_has_value(sym);
 294         if (sym_is_changable(sym)) {
 295                 conf_sym(menu);
 296                 sym_calc_value(sym);
 297                 switch (sym_get_tristate_value(sym)) {
 298                 case no:
 299                         return 1;
 300                 case mod:
 301                         return 0;
 302                 case yes:
 303                         break;
 304                 }
 305         } else {
 306                 switch (sym_get_tristate_value(sym)) {
 307                 case no:
 308                         return 1;
 309                 case mod:
 310                         printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 311                         return 0;
 312                 case yes:
 313                         break;
 314                 }
 315         }
 316
 317         while (1) {
 318                 int cnt, def;
 319
 320                 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 321                 def_sym = sym_get_choice_value(sym);
 322                 cnt = def = 0;
 323                 line[0] = 0;
 324                 for (child = menu->list; child; child = child->next) {
 325                         if (!menu_is_visible(child))
 326                                 continue;
 327                         if (!child->sym) {
 328                                 printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
 329                                 continue;
 330                         }
 331                         cnt++;
 332                         if (child->sym == def_sym) {
 333                                 def = cnt;
 334                                 printf("%*c", indent, '>');
 335                         } else
 336                                 printf("%*c", indent, ' ');
 337                         printf(" %d. %s", cnt, _(menu_get_prompt(child)));
 338                         if (child->sym->name)
 339                                 printf(" (%s)", child->sym->name);
 340                         if (!sym_has_value(child->sym))
 341                                 printf(_(" (NEW)"));
 342                         printf("\n");
 343                 }
 344                 printf(_("%*schoice"), indent - 1, "");
 345                 if (cnt == 1) {
 346                         printf("[1]: 1\n");
 347                         goto conf_childs;
 348                 }
 349                 printf("[1-%d", cnt);
 350                 if (menu_has_help(menu))
 351                         printf("?");
 352                 printf("]: ");
 353                 switch (input_mode) {
 354                 case ask_new:
 355                 case ask_silent:
 356                         if (!is_new) {
 357                                 cnt = def;
 358                                 printf("%d\n", cnt);
 359                                 break;
 360                         }
 361                         check_stdin();
 362                 case ask_all:
 363                         fflush(stdout);
 364                         fgets(line, 128, stdin);
 365                         strip(line);
 366                         if (line[0] == '?') {
 367                                 printf("\n%s\n", get_help(menu));
 368                                 continue;
 369                         }
 370                         if (!line[0])
 371                                 cnt = def;
 372                         else if (isdigit(line[0]))
 373                                 cnt = atoi(line);
 374                         else
 375                                 continue;
 376                         break;
 377                 case set_random:
 378                         if (is_new)
 379                                 def = (rand() % cnt) + 1;
 380                 case set_default:
 381                 case set_yes:
 382                 case set_mod:
 383                 case set_no:
 384                         cnt = def;
 385                         printf("%d\n", cnt);
 386                         break;
 387                 }
 388
 389         conf_childs:
 390                 for (child = menu->list; child; child = child->next) {
 391                         if (!child->sym || !menu_is_visible(child))
 392                                 continue;
 393                         if (!--cnt)
 394                                 break;
 395                 }
 396                 if (!child)
 397                         continue;
 398                 if (line[strlen(line) - 1] == '?') {
 399                         printf("\n%s\n", get_help(child));
 400                         continue;
 401                 }
 402                 sym_set_choice_value(sym, child->sym);
 403                 for (child = child->list; child; child = child->next) {
 404                         indent += 2;
 405                         conf(child);
 406                         indent -= 2;
 407                 }
 408                 return 1;
 409         }
 410 }
 411
 412 static void conf(struct menu *menu)
 413 {
 414         struct symbol *sym;
 415         struct property *prop;
 416         struct menu *child;
 417
 418         if (!menu_is_visible(menu))
 419                 return;
 420
 421         sym = menu->sym;
 422         prop = menu->prompt;
 423         if (prop) {
 424                 const char *prompt;
 425
 426                 switch (prop->type) {
 427                 case P_MENU:
 428                         if (input_mode == ask_silent && rootEntry != menu) {
 429                                 check_conf(menu);
 430                                 return;
 431                         }
 432                 case P_COMMENT:
 433                         prompt = menu_get_prompt(menu);
 434                         if (prompt)
 435                                 printf("%*c\n%*c %s\n%*c\n",
 436                                         indent, '*',
 437                                         indent, '*', _(prompt),
 438                                         indent, '*');
 439                 default:
 440                         ;
 441                 }
 442         }
 443
 444         if (!sym)
 445                 goto conf_childs;
 446
 447         if (sym_is_choice(sym)) {
 448                 conf_choice(menu);
 449                 if (sym->curr.tri != mod)
 450                         return;
 451                 goto conf_childs;
 452         }
 453
 454         switch (sym->type) {
 455         case S_INT:
 456         case S_HEX:
 457         case S_STRING:
 458                 conf_string(menu);
 459                 break;
 460         default:
 461                 conf_sym(menu);
 462                 break;
 463         }
 464
 465 conf_childs:
 466         if (sym)
 467                 indent += 2;
 468         for (child = menu->list; child; child = child->next)
 469                 conf(child);
 470         if (sym)
 471                 indent -= 2;
 472 }
 473
 474 static void check_conf(struct menu *menu)
 475 {
 476         struct symbol *sym;
 477         struct menu *child;
 478
 479         if (!menu_is_visible(menu))
 480                 return;
 481
 482         sym = menu->sym;
 483         if (sym && !sym_has_value(sym)) {
 484                 if (sym_is_changable(sym) ||
 485                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
 486                         if (!conf_cnt++)
 487                                 printf(_("*\n* Restart config...\n*\n"));
 488                         rootEntry = menu_get_parent_menu(menu);
 489                         conf(rootEntry);
 490                 }
 491         }
 492
 493         for (child = menu->list; child; child = child->next)
 494                 check_conf(child);
 495 }
 496
 497 int main(int ac, char **av)
 498 {
 499         int opt;
 500         const char *name;
 501         struct stat tmpstat;
 502
 503         setlocale(LC_ALL, "");
 504         bindtextdomain(PACKAGE, LOCALEDIR);
 505         textdomain(PACKAGE);
 506
 507         while ((opt = getopt(ac, av, "osdD:nmyrh")) != -1) {
 508                 switch (opt) {
 509                 case 'o':
 510                         input_mode = ask_new;
 511                         break;
 512                 case 's':
 513                         input_mode = ask_silent;
 514                         valid_stdin = isatty(0) && isatty(1) && isatty(2);
 515                         break;
 516                 case 'd':
 517                         input_mode = set_default;
 518                         break;
 519                 case 'D':
 520                         input_mode = set_default;
 521                         defconfig_file = optarg;
 522                         break;
 523                 case 'n':
 524                         input_mode = set_no;
 525                         break;
 526                 case 'm':
 527                         input_mode = set_mod;
 528                         break;
 529                 case 'y':
 530                         input_mode = set_yes;
 531                         break;
 532                 case 'r':
 533                         input_mode = set_random;
 534                         srand(time(NULL));
 535                         break;
 536                 case 'h':
 537                         printf(_("See README for usage info\n"));
 538                         exit(0);
 539                         break;
 540                 default:
 541                         fprintf(stderr, _("See README for usage info\n"));
 542                         exit(1);
 543                 }
 544         }
 545         if (ac == optind) {
 546                 printf(_("%s: Kconfig file missing\n"), av[0]);
 547                 exit(1);
 548         }
 549         name = av[optind];
 550         conf_parse(name);
 551         //zconfdump(stdout);
 552         switch (input_mode) {
 553         case set_default:
 554                 if (!defconfig_file)
 555                         defconfig_file = conf_get_default_confname();
 556                 if (conf_read(defconfig_file)) {
 557                         printf(_("***\n"
 558                                 "*** Can't find default configuration \"%s\"!\n"
 559                                 "***\n"), defconfig_file);
 560                         exit(1);
 561                 }
 562                 break;
 563         case ask_silent:
 564                 if (stat(".config", &tmpstat)) {
 565                         printf(_("***\n"
 566                                 "*** You have not yet configured your kernel!\n"
 567                                 "*** (missing kernel .config file)\n"
 568                                 "***\n"
 569                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
 570                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
 571                                 "***\n"));
 572                         exit(1);
 573                 }
 574         case ask_all:
 575         case ask_new:
 576                 conf_read(NULL);
 577                 break;
 578         case set_no:
 579         case set_mod:
 580         case set_yes:
 581         case set_random:
 582                 name = getenv("KCONFIG_ALLCONFIG");
 583                 if (name && !stat(name, &tmpstat)) {
 584                         conf_read_simple(name, S_DEF_USER);
 585                         break;
 586                 }
 587                 switch (input_mode) {
 588                 case set_no:     name = "allno.config"; break;
 589                 case set_mod:    name = "allmod.config"; break;
 590                 case set_yes:    name = "allyes.config"; break;
 591                 case set_random: name = "allrandom.config"; break;
 592                 default: break;
 593                 }
 594                 if (!stat(name, &tmpstat))
 595                         conf_read_simple(name, S_DEF_USER);
 596                 else if (!stat("all.config", &tmpstat))
 597                         conf_read_simple("all.config", S_DEF_USER);
 598                 break;
 599         default:
 600                 break;
 601         }
 602
 603         if (input_mode != ask_silent) {
 604                 rootEntry = &rootmenu;
 605                 conf(&rootmenu);
 606                 if (input_mode == ask_all) {
 607                         input_mode = ask_silent;
 608                         valid_stdin = 1;
 609                 }
 610         } else if (conf_get_changed()) {
 611                 name = getenv("KCONFIG_NOSILENTUPDATE");
 612                 if (name && *name) {
 613                         fprintf(stderr, _("\n*** Kernel configuration requires explicit update.\n\n"));
 614                         return 1;
 615                 }
 616         } else
 617                 goto skip_check;
 618
 619         do {
 620                 conf_cnt = 0;
 621                 check_conf(&rootmenu);
 622         } while (conf_cnt);
 623         if (conf_write(NULL)) {
 624                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
 625                 return 1;
 626         }
 627 skip_check:
 628         if (input_mode == ask_silent && conf_write_autoconf()) {
 629                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
 630                 return 1;
 631         }
 632
 633         return 0;
 634 }