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