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 <stdio.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11 #include <time.h>
  12 #include <sys/stat.h>
  13
  14 #define LKC_DIRECT_LINK
  15 #include "lkc.h"
  16
  17 static void conf(struct menu *menu);
  18 static void check_conf(struct menu *menu);
  19
  20 enum {
  21         ask_all,
  22         ask_new,
  23         ask_silent,
  24         set_default,
  25         set_yes,
  26         set_mod,
  27         set_no,
  28         set_random
  29 } input_mode = ask_all;
  30 char *defconfig_file;
  31
  32 static int indent = 1;
  33 static int valid_stdin = 1;
  34 static int conf_cnt;
  35 static char line[128];
  36 static struct menu *rootEntry;
  37
  38 static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
  39
  40 static void strip(char *str)
  41 {
  42         char *p = str;
  43         int l;
  44
  45         while ((isspace(*p)))
  46                 p++;
  47         l = strlen(p);
  48         if (p != str)
  49                 memmove(str, p, l + 1);
  50         if (!l)
  51                 return;
  52         p = str + l - 1;
  53         while ((isspace(*p)))
  54                 *p-- = 0;
  55 }
  56
  57 static void check_stdin(void)
  58 {
  59         if (!valid_stdin && input_mode == ask_silent) {
  60                 printf(_("aborted!\n\n"));
  61                 printf(_("Console input/output is redirected. "));
  62                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
  63                 exit(1);
  64         }
  65 }
  66
  67 static char *fgets_check_stream(char *s, int size, FILE *stream)
  68 {
  69         char *ret = fgets(s, size, stream);
  70
  71         if (ret == NULL && feof(stream)) {
  72                 printf(_("aborted!\n\n"));
  73                 printf(_("Console input is closed. "));
  74                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
  75                 exit(1);
  76         }
  77
  78         return ret;
  79 }
  80
  81 static void conf_askvalue(struct symbol *sym, const char *def)
  82 {
  83         enum symbol_type type = sym_get_type(sym);
  84         tristate val;
  85
  86         if (!sym_has_value(sym))
  87                 printf("(NEW) ");
  88
  89         line[0] = '\n';
  90         line[1] = 0;
  91
  92         if (!sym_is_changable(sym)) {
  93                 printf("%s\n", def);
  94                 line[0] = '\n';
  95                 line[1] = 0;
  96                 return;
  97         }
  98
  99         switch (input_mode) {
 100         case set_no:
 101         case set_mod:
 102         case set_yes:
 103         case set_random:
 104                 if (sym_has_value(sym)) {
 105                         printf("%s\n", def);
 106                         return;
 107                 }
 108                 break;
 109         case ask_new:
 110         case ask_silent:
 111                 if (sym_has_value(sym)) {
 112                         printf("%s\n", def);
 113                         return;
 114                 }
 115                 check_stdin();
 116         case ask_all:
 117                 fflush(stdout);
 118                 fgets_check_stream(line, 128, stdin);
 119                 return;
 120         case set_default:
 121                 printf("%s\n", def);
 122                 return;
 123         default:
 124                 break;
 125         }
 126
 127         switch (type) {
 128         case S_INT:
 129         case S_HEX:
 130         case S_STRING:
 131                 printf("%s\n", def);
 132                 return;
 133         default:
 134                 ;
 135         }
 136         switch (input_mode) {
 137         case set_yes:
 138                 if (sym_tristate_within_range(sym, yes)) {
 139                         line[0] = 'y';
 140                         line[1] = '\n';
 141                         line[2] = 0;
 142                         break;
 143                 }
 144         case set_mod:
 145                 if (type == S_TRISTATE) {
 146                         if (sym_tristate_within_range(sym, mod)) {
 147                                 line[0] = 'm';
 148                                 line[1] = '\n';
 149                                 line[2] = 0;
 150                                 break;
 151                         }
 152                 } else {
 153                         if (sym_tristate_within_range(sym, yes)) {
 154                                 line[0] = 'y';
 155                                 line[1] = '\n';
 156                                 line[2] = 0;
 157                                 break;
 158                         }
 159                 }
 160         case set_no:
 161                 if (sym_tristate_within_range(sym, no)) {
 162                         line[0] = 'n';
 163                         line[1] = '\n';
 164                         line[2] = 0;
 165                         break;
 166                 }
 167         case set_random:
 168                 do {
 169                         val = (tristate)(random() % 3);
 170                 } while (!sym_tristate_within_range(sym, val));
 171                 switch (val) {
 172                 case no: line[0] = 'n'; break;
 173                 case mod: line[0] = 'm'; break;
 174                 case yes: line[0] = 'y'; break;
 175                 }
 176                 line[1] = '\n';
 177                 line[2] = 0;
 178                 break;
 179         default:
 180                 break;
 181         }
 182         printf("%s", line);
 183 }
 184
 185 int conf_string(struct menu *menu)
 186 {
 187         struct symbol *sym = menu->sym;
 188         const char *def, *help;
 189
 190         while (1) {
 191                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
 192                 printf("(%s) ", sym->name);
 193                 def = sym_get_string_value(sym);
 194                 if (sym_get_string_value(sym))
 195                         printf("[%s] ", def);
 196                 conf_askvalue(sym, def);
 197                 switch (line[0]) {
 198                 case '\n':
 199                         break;
 200                 case '?':
 201                         /* print help */
 202                         if (line[1] == '\n') {
 203                                 help = nohelp_text;
 204                                 if (menu->sym->help)
 205                                         help = menu->sym->help;
 206                                 printf("\n%s\n", menu->sym->help);
 207                                 def = NULL;
 208                                 break;
 209                         }
 210                 default:
 211                         line[strlen(line)-1] = 0;
 212                         def = line;
 213                 }
 214                 if (def && sym_set_string_value(sym, def))
 215                         return 0;
 216         }
 217 }
 218
 219 static int conf_sym(struct menu *menu)
 220 {
 221         struct symbol *sym = menu->sym;
 222         int type;
 223         tristate oldval, newval;
 224         const char *help;
 225
 226         while (1) {
 227                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
 228                 if (sym->name)
 229                         printf("(%s) ", sym->name);
 230                 type = sym_get_type(sym);
 231                 putchar('[');
 232                 oldval = sym_get_tristate_value(sym);
 233                 switch (oldval) {
 234                 case no:
 235                         putchar('N');
 236                         break;
 237                 case mod:
 238                         putchar('M');
 239                         break;
 240                 case yes:
 241                         putchar('Y');
 242                         break;
 243                 }
 244                 if (oldval != no && sym_tristate_within_range(sym, no))
 245                         printf("/n");
 246                 if (oldval != mod && sym_tristate_within_range(sym, mod))
 247                         printf("/m");
 248                 if (oldval != yes && sym_tristate_within_range(sym, yes))
 249                         printf("/y");
 250                 if (sym->help)
 251                         printf("/?");
 252                 printf("] ");
 253                 conf_askvalue(sym, sym_get_string_value(sym));
 254                 strip(line);
 255
 256                 switch (line[0]) {
 257                 case 'n':
 258                 case 'N':
 259                         newval = no;
 260                         if (!line[1] || !strcmp(&line[1], "o"))
 261                                 break;
 262                         continue;
 263                 case 'm':
 264                 case 'M':
 265                         newval = mod;
 266                         if (!line[1])
 267                                 break;
 268                         continue;
 269                 case 'y':
 270                 case 'Y':
 271                         newval = yes;
 272                         if (!line[1] || !strcmp(&line[1], "es"))
 273                                 break;
 274                         continue;
 275                 case 0:
 276                         newval = oldval;
 277                         break;
 278                 case '?':
 279                         goto help;
 280                 default:
 281                         continue;
 282                 }
 283                 if (sym_set_tristate_value(sym, newval))
 284                         return 0;
 285 help:
 286                 help = nohelp_text;
 287                 if (sym->help)
 288                         help = sym->help;
 289                 printf("\n%s\n", help);
 290         }
 291 }
 292
 293 static int conf_choice(struct menu *menu)
 294 {
 295         struct symbol *sym, *def_sym;
 296         struct menu *child;
 297         int type;
 298         bool is_new;
 299
 300         sym = menu->sym;
 301         type = sym_get_type(sym);
 302         is_new = !sym_has_value(sym);
 303         if (sym_is_changable(sym)) {
 304                 conf_sym(menu);
 305                 sym_calc_value(sym);
 306                 switch (sym_get_tristate_value(sym)) {
 307                 case no:
 308                         return 1;
 309                 case mod:
 310                         return 0;
 311                 case yes:
 312                         break;
 313                 }
 314         } else {
 315                 switch (sym_get_tristate_value(sym)) {
 316                 case no:
 317                         return 1;
 318                 case mod:
 319                         printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
 320                         return 0;
 321                 case yes:
 322                         break;
 323                 }
 324         }
 325
 326         while (1) {
 327                 int cnt, def;
 328
 329                 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
 330                 def_sym = sym_get_choice_value(sym);
 331                 cnt = def = 0;
 332                 line[0] = 0;
 333                 for (child = menu->list; child; child = child->next) {
 334                         if (!menu_is_visible(child))
 335                                 continue;
 336                         if (!child->sym) {
 337                                 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
 338                                 continue;
 339                         }
 340                         cnt++;
 341                         if (child->sym == def_sym) {
 342                                 def = cnt;
 343                                 printf("%*c", indent, '>');
 344                         } else
 345                                 printf("%*c", indent, ' ');
 346                         printf(" %d. %s", cnt, menu_get_prompt(child));
 347                         if (child->sym->name)
 348                                 printf(" (%s)", child->sym->name);
 349                         if (!sym_has_value(child->sym))
 350                                 printf(" (NEW)");
 351                         printf("\n");
 352                 }
 353                 printf("%*schoice", indent - 1, "");
 354                 if (cnt == 1) {
 355                         printf("[1]: 1\n");
 356                         goto conf_childs;
 357                 }
 358                 printf("[1-%d", cnt);
 359                 if (sym->help)
 360                         printf("?");
 361                 printf("]: ");
 362                 switch (input_mode) {
 363                 case ask_new:
 364                 case ask_silent:
 365                         if (!is_new) {
 366                                 cnt = def;
 367                                 printf("%d\n", cnt);
 368                                 break;
 369                         }
 370                         check_stdin();
 371                 case ask_all:
 372                         fflush(stdout);
 373                         fgets_check_stream(line, 128, stdin);
 374                         strip(line);
 375                         if (line[0] == '?') {
 376                                 printf("\n%s\n", menu->sym->help ?
 377                                         menu->sym->help : nohelp_text);
 378                                 continue;
 379                         }
 380                         if (!line[0])
 381                                 cnt = def;
 382                         else if (isdigit(line[0]))
 383                                 cnt = atoi(line);
 384                         else
 385                                 continue;
 386                         break;
 387                 case set_random:
 388                         def = (random() % cnt) + 1;
 389                 case set_default:
 390                 case set_yes:
 391                 case set_mod:
 392                 case set_no:
 393                         cnt = def;
 394                         printf("%d\n", cnt);
 395                         break;
 396                 }
 397
 398         conf_childs:
 399                 for (child = menu->list; child; child = child->next) {
 400                         if (!child->sym || !menu_is_visible(child))
 401                                 continue;
 402                         if (!--cnt)
 403                                 break;
 404                 }
 405                 if (!child)
 406                         continue;
 407                 if (line[strlen(line) - 1] == '?') {
 408                         printf("\n%s\n", child->sym->help ?
 409                                 child->sym->help : nohelp_text);
 410                         continue;
 411                 }
 412                 sym_set_choice_value(sym, child->sym);
 413                 if (child->list) {
 414                         indent += 2;
 415                         conf(child->list);
 416                         indent -= 2;
 417                 }
 418                 return 1;
 419         }
 420 }
 421
 422 static void conf(struct menu *menu)
 423 {
 424         struct symbol *sym;
 425         struct property *prop;
 426         struct menu *child;
 427
 428         if (!menu_is_visible(menu))
 429                 return;
 430
 431         sym = menu->sym;
 432         prop = menu->prompt;
 433         if (prop) {
 434                 const char *prompt;
 435
 436                 switch (prop->type) {
 437                 case P_MENU:
 438                         if (input_mode == ask_silent && rootEntry != menu) {
 439                                 check_conf(menu);
 440                                 return;
 441                         }
 442                 case P_COMMENT:
 443                         prompt = menu_get_prompt(menu);
 444                         if (prompt)
 445                                 printf("%*c\n%*c %s\n%*c\n",
 446                                         indent, '*',
 447                                         indent, '*', prompt,
 448                                         indent, '*');
 449                 default:
 450                         ;
 451                 }
 452         }
 453
 454         if (!sym)
 455                 goto conf_childs;
 456
 457         if (sym_is_choice(sym)) {
 458                 conf_choice(menu);
 459                 if (sym->curr.tri != mod)
 460                         return;
 461                 goto conf_childs;
 462         }
 463
 464         switch (sym->type) {
 465         case S_INT:
 466         case S_HEX:
 467         case S_STRING:
 468                 conf_string(menu);
 469                 break;
 470         default:
 471                 conf_sym(menu);
 472                 break;
 473         }
 474
 475 conf_childs:
 476         if (sym)
 477                 indent += 2;
 478         for (child = menu->list; child; child = child->next)
 479                 conf(child);
 480         if (sym)
 481                 indent -= 2;
 482 }
 483
 484 static void check_conf(struct menu *menu)
 485 {
 486         struct symbol *sym;
 487         struct menu *child;
 488
 489         if (!menu_is_visible(menu))
 490                 return;
 491
 492         sym = menu->sym;
 493         if (sym && !sym_has_value(sym)) {
 494                 if (sym_is_changable(sym) ||
 495                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
 496                         if (!conf_cnt++)
 497                                 printf(_("*\n* Restart config...\n*\n"));
 498                         rootEntry = menu_get_parent_menu(menu);
 499                         conf(rootEntry);
 500                 }
 501         }
 502
 503         for (child = menu->list; child; child = child->next)
 504                 check_conf(child);
 505 }
 506
 507 int main(int ac, char **av)
 508 {
 509         int i = 1;
 510         const char *name;
 511         struct stat tmpstat;
 512
 513         if (ac > i && av[i][0] == '-') {
 514                 switch (av[i++][1]) {
 515                 case 'o':
 516                         input_mode = ask_new;
 517                         break;
 518                 case 's':
 519                         input_mode = ask_silent;
 520                         valid_stdin = isatty(0) && isatty(1) && isatty(2);
 521                         break;
 522                 case 'd':
 523                         input_mode = set_default;
 524                         break;
 525                 case 'D':
 526                         input_mode = set_default;
 527                         defconfig_file = av[i++];
 528                         if (!defconfig_file) {
 529                                 printf(_("%s: No default config file specified\n"),
 530                                         av[0]);
 531                                 exit(1);
 532                         }
 533                         break;
 534                 case 'n':
 535                         input_mode = set_no;
 536                         break;
 537                 case 'm':
 538                         input_mode = set_mod;
 539                         break;
 540                 case 'y':
 541                         input_mode = set_yes;
 542                         break;
 543                 case 'r':
 544                         input_mode = set_random;
 545                         srandom(time(NULL));
 546                         break;
 547                 case 'h':
 548                 case '?':
 549                         fprintf(stderr, "See README for usage info\n");
 550                         exit(0);
 551                 }
 552         }
 553         name = av[i];
 554         if (!name) {
 555                 printf(_("%s: Kconfig file missing\n"), av[0]);
 556         }
 557         conf_parse(name);
 558         //zconfdump(stdout);
 559         switch (input_mode) {
 560         case set_default:
 561                 if (!defconfig_file)
 562                         defconfig_file = conf_get_default_confname();
 563                 if (conf_read(defconfig_file)) {
 564                         printf("***\n"
 565                                 "*** Can't find default configuration \"%s\"!\n"
 566                                 "***\n", defconfig_file);
 567                         exit(1);
 568                 }
 569                 break;
 570         case ask_silent:
 571                 if (stat(".config", &tmpstat)) {
 572                         printf(_("***\n"
 573                                 "*** You have not yet configured your kernel!\n"
 574                                 "***\n"
 575                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
 576                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
 577                                 "***\n"));
 578                         exit(1);
 579                 }
 580         case ask_all:
 581         case ask_new:
 582                 conf_read(NULL);
 583                 break;
 584         case set_no:
 585         case set_mod:
 586         case set_yes:
 587         case set_random:
 588                 name = getenv("KCONFIG_ALLCONFIG");
 589                 if (name && !stat(name, &tmpstat)) {
 590                         conf_read_simple(name);
 591                         break;
 592                 }
 593                 switch (input_mode) {
 594                 case set_no:     name = "allno.config"; break;
 595                 case set_mod:    name = "allmod.config"; break;
 596                 case set_yes:    name = "allyes.config"; break;
 597                 case set_random: name = "allrandom.config"; break;
 598                 default: break;
 599                 }
 600                 if (!stat(name, &tmpstat))
 601                         conf_read_simple(name);
 602                 else if (!stat("all.config", &tmpstat))
 603                         conf_read_simple("all.config");
 604                 break;
 605         default:
 606                 break;
 607         }
 608
 609         if (input_mode != ask_silent) {
 610                 rootEntry = &rootmenu;
 611                 conf(&rootmenu);
 612                 if (input_mode == ask_all) {
 613                         input_mode = ask_silent;
 614                         valid_stdin = 1;
 615                 }
 616         }
 617         do {
 618                 conf_cnt = 0;
 619                 check_conf(&rootmenu);
 620         } while (conf_cnt);
 621         if (conf_write(NULL)) {
 622                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
 623                 return 1;
 624         }
 625         return 0;
 626 }