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