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