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 <getopt.h>
  14 #include <sys/stat.h>
  15 #include <sys/time.h>
  16
  17 #define LKC_DIRECT_LINK
  18 #include "lkc.h"
  19
  20 static void conf(struct menu *menu);
  21 static void check_conf(struct menu *menu);
  22
  23 enum input_mode {
  24         oldaskconfig,
  25         silentoldconfig,
  26         oldconfig,
  27         allnoconfig,
  28         allyesconfig,
  29         allmodconfig,
  30         alldefconfig,
  31         randconfig,
  32         defconfig,
  33         savedefconfig,
  34         listnewconfig,
  35         oldnoconfig,
  36 } input_mode = oldaskconfig;
  37
  38 char *defconfig_file;
  39
  40 static int indent = 1;
  41 static int valid_stdin = 1;
  42 static int sync_kconfig;
  43 static int conf_cnt;
  44 static char line[128];
  45 static struct menu *rootEntry;
  46
  47 static void print_help(struct menu *menu)
  48 {
  49         struct gstr help = str_new();
  50
  51         menu_get_ext_help(menu, &help);
  52
  53         printf("\n%s\n", str_get(&help));
  54         str_free(&help);
  55 }
  56
  57 static void strip(char *str)
  58 {
  59         char *p = str;
  60         int l;
  61
  62         while ((isspace(*p)))
  63                 p++;
  64         l = strlen(p);
  65         if (p != str)
  66                 memmove(str, p, l + 1);
  67         if (!l)
  68                 return;
  69         p = str + l - 1;
  70         while ((isspace(*p)))
  71                 *p-- = 0;
  72 }
  73
  74 static void check_stdin(void)
  75 {
  76         if (!valid_stdin) {
  77                 printf(_("aborted!\n\n"));
  78                 printf(_("Console input/output is redirected. "));
  79                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
  80                 exit(1);
  81         }
  82 }
  83
  84 static int conf_askvalue(struct symbol *sym, const char *def)
  85 {
  86         enum symbol_type type = sym_get_type(sym);
  87
  88         if (!sym_has_value(sym))
  89                 printf(_("(NEW) "));
  90
  91         line[0] = '\n';
  92         line[1] = 0;
  93
  94         if (!sym_is_changable(sym)) {
  95                 printf("%s\n", def);
  96                 line[0] = '\n';
  97                 line[1] = 0;
  98                 return 0;
  99         }
 100
 101         switch (input_mode) {
 102         case oldconfig:
 103         case silentoldconfig:
 104                 if (sym_has_value(sym)) {
 105                         printf("%s\n", def);
 106                         return 0;
 107                 }
 108                 check_stdin();
 109                 /* fall through */
 110         case oldaskconfig:
 111                 fflush(stdout);
 112                 xfgets(line, 128, stdin);
 113                 return 1;
 114         default:
 115                 break;
 116         }
 117
 118         switch (type) {
 119         case S_INT:
 120         case S_HEX:
 121         case S_STRING:
 122                 printf("%s\n", def);
 123                 return 1;
 124         default:
 125                 ;
 126         }
 127         printf("%s", line);
 128         return 1;
 129 }
 130
 131 static int conf_string(struct menu *menu)
 132 {
 133         struct symbol *sym = menu->sym;
 134         const char *def;
 135
 136         while (1) {
 137                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 138                 printf("(%s) ", sym->name);
 139                 def = sym_get_string_value(sym);
 140                 if (sym_get_string_value(sym))
 141                         printf("[%s] ", def);
 142                 if (!conf_askvalue(sym, def))
 143                         return 0;
 144                 switch (line[0]) {
 145                 case '\n':
 146                         break;
 147                 case '?':
 148                         /* print help */
 149                         if (line[1] == '\n') {
 150                                 print_help(menu);
 151                                 def = NULL;
 152                                 break;
 153                         }
 154                         /* fall through */
 155                 default:
 156                         line[strlen(line)-1] = 0;
 157                         def = line;
 158                 }
 159                 if (def && sym_set_string_value(sym, def))
 160                         return 0;
 161         }
 162 }
 163
 164 static int conf_sym(struct menu *menu)
 165 {
 166         struct symbol *sym = menu->sym;
 167         tristate oldval, newval;
 168
 169         while (1) {
 170                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 171                 if (sym->name)
 172                         printf("(%s) ", sym->name);
 173                 putchar('[');
 174                 oldval = sym_get_tristate_value(sym);
 175                 switch (oldval) {
 176                 case no:
 177                         putchar('N');
 178                         break;
 179                 case mod:
 180                         putchar('M');
 181                         break;
 182                 case yes:
 183                         putchar('Y');
 184                         break;
 185                 }
 186                 if (oldval != no && sym_tristate_within_range(sym, no))
 187                         printf("/n");
 188                 if (oldval != mod && sym_tristate_within_range(sym, mod))
 189                         printf("/m");
 190                 if (oldval != yes && sym_tristate_within_range(sym, yes))
 191                         printf("/y");
 192                 if (menu_has_help(menu))
 193                         printf("/?");
 194                 printf("] ");
 195                 if (!conf_askvalue(sym, sym_get_string_value(sym)))
 196                         return 0;
 197                 strip(line);
 198
 199                 switch (line[0]) {
 200                 case 'n':
 201                 case 'N':
 202                         newval = no;
 203                         if (!line[1] || !strcmp(&line[1], "o"))
 204                                 break;
 205                         continue;
 206                 case 'm':
 207                 case 'M':
 208                         newval = mod;
 209                         if (!line[1])
 210                                 break;
 211                         continue;
 212                 case 'y':
 213                 case 'Y':
 214                         newval = yes;
 215                         if (!line[1] || !strcmp(&line[1], "es"))
 216                                 break;
 217                         continue;
 218                 case 0:
 219                         newval = oldval;
 220                         break;
 221                 case '?':
 222                         goto help;
 223                 default:
 224                         continue;
 225                 }
 226                 if (sym_set_tristate_value(sym, newval))
 227                         return 0;
 228 help:
 229                 print_help(menu);
 230         }
 231 }
 232
 233 static int conf_choice(struct menu *menu)
 234 {
 235         struct symbol *sym, *def_sym;
 236         struct menu *child;
 237         bool is_new;
 238
 239         sym = menu->sym;
 240         is_new = !sym_has_value(sym);
 241         if (sym_is_changable(sym)) {
 242                 conf_sym(menu);
 243                 sym_calc_value(sym);
 244                 switch (sym_get_tristate_value(sym)) {
 245                 case no:
 246                         return 1;
 247                 case mod:
 248                         return 0;
 249                 case yes:
 250                         break;
 251                 }
 252         } else {
 253                 switch (sym_get_tristate_value(sym)) {
 254                 case no:
 255                         return 1;
 256                 case mod:
 257                         printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 258                         return 0;
 259                 case yes:
 260                         break;
 261                 }
 262         }
 263
 264         while (1) {
 265                 int cnt, def;
 266
 267                 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 268                 def_sym = sym_get_choice_value(sym);
 269                 cnt = def = 0;
 270                 line[0] = 0;
 271                 for (child = menu->list; child; child = child->next) {
 272                         if (!menu_is_visible(child))
 273                                 continue;
 274                         if (!child->sym) {
 275                                 printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
 276                                 continue;
 277                         }
 278                         cnt++;
 279                         if (child->sym == def_sym) {
 280                                 def = cnt;
 281                                 printf("%*c", indent, '>');
 282                         } else
 283                                 printf("%*c", indent, ' ');
 284                         printf(" %d. %s", cnt, _(menu_get_prompt(child)));
 285                         if (child->sym->name)
 286                                 printf(" (%s)", child->sym->name);
 287                         if (!sym_has_value(child->sym))
 288                                 printf(_(" (NEW)"));
 289                         printf("\n");
 290                 }
 291                 printf(_("%*schoice"), indent - 1, "");
 292                 if (cnt == 1) {
 293                         printf("[1]: 1\n");
 294                         goto conf_childs;
 295                 }
 296                 printf("[1-%d", cnt);
 297                 if (menu_has_help(menu))
 298                         printf("?");
 299                 printf("]: ");
 300                 switch (input_mode) {
 301                 case oldconfig:
 302                 case silentoldconfig:
 303                         if (!is_new) {
 304                                 cnt = def;
 305                                 printf("%d\n", cnt);
 306                                 break;
 307                         }
 308                         check_stdin();
 309                         /* fall through */
 310                 case oldaskconfig:
 311                         fflush(stdout);
 312                         xfgets(line, 128, stdin);
 313                         strip(line);
 314                         if (line[0] == '?') {
 315                                 print_help(menu);
 316                                 continue;
 317                         }
 318                         if (!line[0])
 319                                 cnt = def;
 320                         else if (isdigit(line[0]))
 321                                 cnt = atoi(line);
 322                         else
 323                                 continue;
 324                         break;
 325                 default:
 326                         break;
 327                 }
 328
 329         conf_childs:
 330                 for (child = menu->list; child; child = child->next) {
 331                         if (!child->sym || !menu_is_visible(child))
 332                                 continue;
 333                         if (!--cnt)
 334                                 break;
 335                 }
 336                 if (!child)
 337                         continue;
 338                 if (line[0] && line[strlen(line) - 1] == '?') {
 339                         print_help(child);
 340                         continue;
 341                 }
 342                 sym_set_choice_value(sym, child->sym);
 343                 for (child = child->list; child; child = child->next) {
 344                         indent += 2;
 345                         conf(child);
 346                         indent -= 2;
 347                 }
 348                 return 1;
 349         }
 350 }
 351
 352 static void conf(struct menu *menu)
 353 {
 354         struct symbol *sym;
 355         struct property *prop;
 356         struct menu *child;
 357
 358         if (!menu_is_visible(menu))
 359                 return;
 360
 361         sym = menu->sym;
 362         prop = menu->prompt;
 363         if (prop) {
 364                 const char *prompt;
 365
 366                 switch (prop->type) {
 367                 case P_MENU:
 368                         if ((input_mode == silentoldconfig ||
 369                              input_mode == listnewconfig ||
 370                              input_mode == oldnoconfig) &&
 371                             rootEntry != menu) {
 372                                 check_conf(menu);
 373                                 return;
 374                         }
 375                         /* fall through */
 376                 case P_COMMENT:
 377                         prompt = menu_get_prompt(menu);
 378                         if (prompt)
 379                                 printf("%*c\n%*c %s\n%*c\n",
 380                                         indent, '*',
 381                                         indent, '*', _(prompt),
 382                                         indent, '*');
 383                 default:
 384                         ;
 385                 }
 386         }
 387
 388         if (!sym)
 389                 goto conf_childs;
 390
 391         if (sym_is_choice(sym)) {
 392                 conf_choice(menu);
 393                 if (sym->curr.tri != mod)
 394                         return;
 395                 goto conf_childs;
 396         }
 397
 398         switch (sym->type) {
 399         case S_INT:
 400         case S_HEX:
 401         case S_STRING:
 402                 conf_string(menu);
 403                 break;
 404         default:
 405                 conf_sym(menu);
 406                 break;
 407         }
 408
 409 conf_childs:
 410         if (sym)
 411                 indent += 2;
 412         for (child = menu->list; child; child = child->next)
 413                 conf(child);
 414         if (sym)
 415                 indent -= 2;
 416 }
 417
 418 static void check_conf(struct menu *menu)
 419 {
 420         struct symbol *sym;
 421         struct menu *child;
 422
 423         if (!menu_is_visible(menu))
 424                 return;
 425
 426         sym = menu->sym;
 427         if (sym && !sym_has_value(sym)) {
 428                 if (sym_is_changable(sym) ||
 429                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
 430                         if (input_mode == listnewconfig) {
 431                                 if (sym->name && !sym_is_choice_value(sym)) {
 432                                         printf("%s%s\n", CONFIG_, sym->name);
 433                                 }
 434                         } else if (input_mode != oldnoconfig) {
 435                                 if (!conf_cnt++)
 436                                         printf(_("*\n* Restart config...\n*\n"));
 437                                 rootEntry = menu_get_parent_menu(menu);
 438                                 conf(rootEntry);
 439                         }
 440                 }
 441         }
 442
 443         for (child = menu->list; child; child = child->next)
 444                 check_conf(child);
 445 }
 446
 447 static struct option long_opts[] = {
 448         {"oldaskconfig",    no_argument,       NULL, oldaskconfig},
 449         {"oldconfig",       no_argument,       NULL, oldconfig},
 450         {"silentoldconfig", no_argument,       NULL, silentoldconfig},
 451         {"defconfig",       optional_argument, NULL, defconfig},
 452         {"savedefconfig",   required_argument, NULL, savedefconfig},
 453         {"allnoconfig",     no_argument,       NULL, allnoconfig},
 454         {"allyesconfig",    no_argument,       NULL, allyesconfig},
 455         {"allmodconfig",    no_argument,       NULL, allmodconfig},
 456         {"alldefconfig",    no_argument,       NULL, alldefconfig},
 457         {"randconfig",      no_argument,       NULL, randconfig},
 458         {"listnewconfig",   no_argument,       NULL, listnewconfig},
 459         {"oldnoconfig",     no_argument,       NULL, oldnoconfig},
 460         {NULL, 0, NULL, 0}
 461 };
 462
 463 int main(int ac, char **av)
 464 {
 465         int opt;
 466         const char *name;
 467         struct stat tmpstat;
 468
 469         setlocale(LC_ALL, "");
 470         bindtextdomain(PACKAGE, LOCALEDIR);
 471         textdomain(PACKAGE);
 472
 473         while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
 474                 input_mode = (enum input_mode)opt;
 475                 switch (opt) {
 476                 case silentoldconfig:
 477                         sync_kconfig = 1;
 478                         break;
 479                 case defconfig:
 480                 case savedefconfig:
 481                         defconfig_file = optarg;
 482                         break;
 483                 case randconfig:
 484                 {
 485                         struct timeval now;
 486                         unsigned int seed;
 487
 488                         /*
 489                          * Use microseconds derived seed,
 490                          * compensate for systems where it may be zero
 491                          */
 492                         gettimeofday(&now, NULL);
 493
 494                         seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
 495                         srand(seed);
 496                         break;
 497                 }
 498                 case '?':
 499                         fprintf(stderr, _("See README for usage info\n"));
 500                         exit(1);
 501                         break;
 502                 }
 503         }
 504         if (ac == optind) {
 505                 printf(_("%s: Kconfig file missing\n"), av[0]);
 506                 exit(1);
 507         }
 508         name = av[optind];
 509         conf_parse(name);
 510         //zconfdump(stdout);
 511         if (sync_kconfig) {
 512                 name = conf_get_configname();
 513                 if (stat(name, &tmpstat)) {
 514                         fprintf(stderr, _("***\n"
 515                                 "*** Configuration file \"%s\" not found!\n"
 516                                 "***\n"
 517                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
 518                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
 519                                 "***\n"), name);
 520                         exit(1);
 521                 }
 522         }
 523
 524         switch (input_mode) {
 525         case defconfig:
 526                 if (!defconfig_file)
 527                         defconfig_file = conf_get_default_confname();
 528                 if (conf_read(defconfig_file)) {
 529                         printf(_("***\n"
 530                                 "*** Can't find default configuration \"%s\"!\n"
 531                                 "***\n"), defconfig_file);
 532                         exit(1);
 533                 }
 534                 break;
 535         case savedefconfig:
 536         case silentoldconfig:
 537         case oldaskconfig:
 538         case oldconfig:
 539         case listnewconfig:
 540         case oldnoconfig:
 541                 conf_read(NULL);
 542                 break;
 543         case allnoconfig:
 544         case allyesconfig:
 545         case allmodconfig:
 546         case alldefconfig:
 547         case randconfig:
 548                 name = getenv("KCONFIG_ALLCONFIG");
 549                 if (name && !stat(name, &tmpstat)) {
 550                         conf_read_simple(name, S_DEF_USER);
 551                         break;
 552                 }
 553                 switch (input_mode) {
 554                 case allnoconfig:       name = "allno.config"; break;
 555                 case allyesconfig:      name = "allyes.config"; break;
 556                 case allmodconfig:      name = "allmod.config"; break;
 557                 case alldefconfig:      name = "alldef.config"; break;
 558                 case randconfig:        name = "allrandom.config"; break;
 559                 default: break;
 560                 }
 561                 if (!stat(name, &tmpstat))
 562                         conf_read_simple(name, S_DEF_USER);
 563                 else if (!stat("all.config", &tmpstat))
 564                         conf_read_simple("all.config", S_DEF_USER);
 565                 break;
 566         default:
 567                 break;
 568         }
 569
 570         if (sync_kconfig) {
 571                 if (conf_get_changed()) {
 572                         name = getenv("KCONFIG_NOSILENTUPDATE");
 573                         if (name && *name) {
 574                                 fprintf(stderr,
 575                                         _("\n*** The configuration requires explicit update.\n\n"));
 576                                 return 1;
 577                         }
 578                 }
 579                 valid_stdin = isatty(0) && isatty(1) && isatty(2);
 580         }
 581
 582         switch (input_mode) {
 583         case allnoconfig:
 584                 conf_set_all_new_symbols(def_no);
 585                 break;
 586         case allyesconfig:
 587                 conf_set_all_new_symbols(def_yes);
 588                 break;
 589         case allmodconfig:
 590                 conf_set_all_new_symbols(def_mod);
 591                 break;
 592         case alldefconfig:
 593                 conf_set_all_new_symbols(def_default);
 594                 break;
 595         case randconfig:
 596                 conf_set_all_new_symbols(def_random);
 597                 break;
 598         case defconfig:
 599                 conf_set_all_new_symbols(def_default);
 600                 break;
 601         case savedefconfig:
 602                 break;
 603         case oldaskconfig:
 604                 rootEntry = &rootmenu;
 605                 conf(&rootmenu);
 606                 input_mode = silentoldconfig;
 607                 /* fall through */
 608         case oldconfig:
 609         case listnewconfig:
 610         case oldnoconfig:
 611         case silentoldconfig:
 612                 /* Update until a loop caused no more changes */
 613                 do {
 614                         conf_cnt = 0;
 615                         check_conf(&rootmenu);
 616                 } while (conf_cnt &&
 617                          (input_mode != listnewconfig &&
 618                           input_mode != oldnoconfig));
 619                 break;
 620         }
 621
 622         if (sync_kconfig) {
 623                 /* silentoldconfig is used during the build so we shall update autoconf.
 624                  * All other commands are only used to generate a config.
 625                  */
 626                 if (conf_get_changed() && conf_write(NULL)) {
 627                         fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
 628                         exit(1);
 629                 }
 630                 if (conf_write_autoconf()) {
 631                         fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
 632                         return 1;
 633                 }
 634         } else if (input_mode == savedefconfig) {
 635                 if (conf_write_defconfig(defconfig_file)) {
 636                         fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
 637                                 defconfig_file);
 638                         return 1;
 639                 }
 640         } else if (input_mode != listnewconfig) {
 641                 if (conf_write(NULL)) {
 642                         fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
 643                         exit(1);
 644                 }
 645         }
 646         return 0;
 647 }
 648 /*
 649  * Helper function to facilitate fgets() by Jean Sacren.
 650  */
 651 void xfgets(str, size, in)
 652         char *str;
 653         int size;
 654         FILE *in;
 655 {
 656         if (fgets(str, size, in) == NULL)
 657                 fprintf(stderr, "\nError in reading or end of file.\n");
 658 }