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