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package/systemd: Default yes for timesyncd
[buildroot-gz.git] / support / kconfig / conf.c
blob553fc76d903e8f5ff68bd9d4475fd71cedf0766e
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 #include <errno.h>
17
18 #include "lkc.h"
19
20 static void conf(struct menu *menu);
21 static void check_conf(struct menu *menu);
22 static void xfgets(char *str, int size, FILE *in);
23
24 enum input_mode {
25 oldaskconfig,
26 silentoldconfig,
27 oldconfig,
28 allnoconfig,
29 allyesconfig,
30 allmodconfig,
31 alldefconfig,
32 randconfig,
33 defconfig,
34 savedefconfig,
35 listnewconfig,
36 olddefconfig,
37 } input_mode = oldaskconfig;
38
39 static int indent = 1;
40 static int tty_stdio;
41 static int valid_stdin = 1;
42 static int sync_kconfig;
43 static int conf_cnt;
44 static char line[128];
45 static struct menu *rootEntry;
46
47 static void print_help(struct menu *menu)
48 {
49 struct gstr help = str_new();
50
51 menu_get_ext_help(menu, &help);
52
53 printf("\n%s\n", str_get(&help));
54 str_free(&help);
55 }
56
57 static void strip(char *str)
58 {
59 char *p = str;
60 int l;
61
62 while ((isspace(*p)))
63 p++;
64 l = strlen(p);
65 if (p != str)
66 memmove(str, p, l + 1);
67 if (!l)
68 return;
69 p = str + l - 1;
70 while ((isspace(*p)))
71 *p-- = 0;
72 }
73
74 static void check_stdin(void)
75 {
76 if (!valid_stdin) {
77 printf(_("aborted!\n\n"));
78 printf(_("Console input/output is redirected. "));
79 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
80 exit(1);
81 }
82 }
83
84 static int conf_askvalue(struct symbol *sym, const char *def)
85 {
86 enum symbol_type type = sym_get_type(sym);
87
88 if (!sym_has_value(sym))
89 printf(_("(NEW) "));
90
91 line[0] = '\n';
92 line[1] = 0;
93
94 if (!sym_is_changable(sym)) {
95 printf("%s\n", def);
96 line[0] = '\n';
97 line[1] = 0;
98 return 0;
99 }
100
101 switch (input_mode) {
102 case oldconfig:
103 case silentoldconfig:
104 if (sym_has_value(sym)) {
105 printf("%s\n", def);
106 return 0;
107 }
108 check_stdin();
109 /* fall through */
110 case oldaskconfig:
111 fflush(stdout);
112 xfgets(line, 128, stdin);
113 if (!tty_stdio)
114 printf("\n");
115 return 1;
116 default:
117 break;
118 }
119
120 switch (type) {
121 case S_INT:
122 case S_HEX:
123 case S_STRING:
124 printf("%s\n", def);
125 return 1;
126 default:
127 ;
128 }
129 printf("%s", line);
130 return 1;
131 }
132
133 static int conf_string(struct menu *menu)
134 {
135 struct symbol *sym = menu->sym;
136 const char *def;
137
138 while (1) {
139 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
140 printf("(%s) ", sym->name);
141 def = sym_get_string_value(sym);
142 if (sym_get_string_value(sym))
143 printf("[%s] ", def);
144 if (!conf_askvalue(sym, def))
145 return 0;
146 switch (line[0]) {
147 case '\n':
148 break;
149 case '?':
150 /* print help */
151 if (line[1] == '\n') {
152 print_help(menu);
153 def = NULL;
154 break;
155 }
156 /* fall through */
157 default:
158 line[strlen(line)-1] = 0;
159 def = line;
160 }
161 if (def && sym_set_string_value(sym, def))
162 return 0;
163 }
164 }
165
166 static int conf_sym(struct menu *menu)
167 {
168 struct symbol *sym = menu->sym;
169 tristate oldval, newval;
170
171 while (1) {
172 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
173 if (sym->name)
174 printf("(%s) ", sym->name);
175 putchar('[');
176 oldval = sym_get_tristate_value(sym);
177 switch (oldval) {
178 case no:
179 putchar('N');
180 break;
181 case mod:
182 putchar('M');
183 break;
184 case yes:
185 putchar('Y');
186 break;
187 }
188 if (oldval != no && sym_tristate_within_range(sym, no))
189 printf("/n");
190 if (oldval != mod && sym_tristate_within_range(sym, mod))
191 printf("/m");
192 if (oldval != yes && sym_tristate_within_range(sym, yes))
193 printf("/y");
194 if (menu_has_help(menu))
195 printf("/?");
196 printf("] ");
197 if (!conf_askvalue(sym, sym_get_string_value(sym)))
198 return 0;
199 strip(line);
200
201 switch (line[0]) {
202 case 'n':
203 case 'N':
204 newval = no;
205 if (!line[1] || !strcmp(&line[1], "o"))
206 break;
207 continue;
208 case 'm':
209 case 'M':
210 newval = mod;
211 if (!line[1])
212 break;
213 continue;
214 case 'y':
215 case 'Y':
216 newval = yes;
217 if (!line[1] || !strcmp(&line[1], "es"))
218 break;
219 continue;
220 case 0:
221 newval = oldval;
222 break;
223 case '?':
224 goto help;
225 default:
226 continue;
227 }
228 if (sym_set_tristate_value(sym, newval))
229 return 0;
230 help:
231 print_help(menu);
232 }
233 }
234
235 static int conf_choice(struct menu *menu)
236 {
237 struct symbol *sym, *def_sym;
238 struct menu *child;
239 bool is_new;
240
241 sym = menu->sym;
242 is_new = !sym_has_value(sym);
243 if (sym_is_changable(sym)) {
244 conf_sym(menu);
245 sym_calc_value(sym);
246 switch (sym_get_tristate_value(sym)) {
247 case no:
248 return 1;
249 case mod:
250 return 0;
251 case yes:
252 break;
253 }
254 } else {
255 switch (sym_get_tristate_value(sym)) {
256 case no:
257 return 1;
258 case mod:
259 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
260 return 0;
261 case yes:
262 break;
263 }
264 }
265
266 while (1) {
267 int cnt, def;
268
269 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
270 def_sym = sym_get_choice_value(sym);
271 cnt = def = 0;
272 line[0] = 0;
273 for (child = menu->list; child; child = child->next) {
274 if (!menu_is_visible(child))
275 continue;
276 if (!child->sym) {
277 printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
278 continue;
279 }
280 cnt++;
281 if (child->sym == def_sym) {
282 def = cnt;
283 printf("%*c", indent, '>');
284 } else
285 printf("%*c", indent, ' ');
286 printf(" %d. %s", cnt, _(menu_get_prompt(child)));
287 if (child->sym->name)
288 printf(" (%s)", child->sym->name);
289 if (!sym_has_value(child->sym))
290 printf(_(" (NEW)"));
291 printf("\n");
292 }
293 printf(_("%*schoice"), indent - 1, "");
294 if (cnt == 1) {
295 printf("[1]: 1\n");
296 goto conf_childs;
297 }
298 printf("[1-%d", cnt);
299 if (menu_has_help(menu))
300 printf("?");
301 printf("]: ");
302 switch (input_mode) {
303 case oldconfig:
304 case silentoldconfig:
305 if (!is_new) {
306 cnt = def;
307 printf("%d\n", cnt);
308 break;
309 }
310 check_stdin();
311 /* fall through */
312 case oldaskconfig:
313 fflush(stdout);
314 xfgets(line, 128, stdin);
315 strip(line);
316 if (line[0] == '?') {
317 print_help(menu);
318 continue;
319 }
320 if (!line[0])
321 cnt = def;
322 else if (isdigit(line[0]))
323 cnt = atoi(line);
324 else
325 continue;
326 break;
327 default:
328 break;
329 }
330
331 conf_childs:
332 for (child = menu->list; child; child = child->next) {
333 if (!child->sym || !menu_is_visible(child))
334 continue;
335 if (!--cnt)
336 break;
337 }
338 if (!child)
339 continue;
340 if (line[0] && line[strlen(line) - 1] == '?') {
341 print_help(child);
342 continue;
343 }
344 sym_set_choice_value(sym, child->sym);
345 for (child = child->list; child; child = child->next) {
346 indent += 2;
347 conf(child);
348 indent -= 2;
349 }
350 return 1;
351 }
352 }
353
354 static void conf(struct menu *menu)
355 {
356 struct symbol *sym;
357 struct property *prop;
358 struct menu *child;
359
360 if (!menu_is_visible(menu))
361 return;
362
363 sym = menu->sym;
364 prop = menu->prompt;
365 if (prop) {
366 const char *prompt;
367
368 switch (prop->type) {
369 case P_MENU:
370 if ((input_mode == silentoldconfig ||
371 input_mode == listnewconfig ||
372 input_mode == olddefconfig) &&
373 rootEntry != menu) {
374 check_conf(menu);
375 return;
376 }
377 /* fall through */
378 case P_COMMENT:
379 prompt = menu_get_prompt(menu);
380 if (prompt)
381 printf("%*c\n%*c %s\n%*c\n",
382 indent, '*',
383 indent, '*', _(prompt),
384 indent, '*');
385 default:
386 ;
387 }
388 }
389
390 if (!sym)
391 goto conf_childs;
392
393 if (sym_is_choice(sym)) {
394 conf_choice(menu);
395 if (sym->curr.tri != mod)
396 return;
397 goto conf_childs;
398 }
399
400 switch (sym->type) {
401 case S_INT:
402 case S_HEX:
403 case S_STRING:
404 conf_string(menu);
405 break;
406 default:
407 conf_sym(menu);
408 break;
409 }
410
411 conf_childs:
412 if (sym)
413 indent += 2;
414 for (child = menu->list; child; child = child->next)
415 conf(child);
416 if (sym)
417 indent -= 2;
418 }
419
420 static void check_conf(struct menu *menu)
421 {
422 struct symbol *sym;
423 struct menu *child;
424
425 if (!menu_is_visible(menu))
426 return;
427
428 sym = menu->sym;
429 if (sym && !sym_has_value(sym)) {
430 if (sym_is_changable(sym) ||
431 (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
432 if (input_mode == listnewconfig) {
433 if (sym->name && !sym_is_choice_value(sym)) {
434 printf("%s%s\n", CONFIG_, sym->name);
435 }
436 } else if (input_mode != olddefconfig) {
437 if (!conf_cnt++)
438 printf(_("*\n* Restart config...\n*\n"));
439 rootEntry = menu_get_parent_menu(menu);
440 conf(rootEntry);
441 }
442 }
443 }
444
445 for (child = menu->list; child; child = child->next)
446 check_conf(child);
447 }
448
449 static struct option long_opts[] = {
450 {"oldaskconfig", no_argument, NULL, oldaskconfig},
451 {"oldconfig", no_argument, NULL, oldconfig},
452 {"silentoldconfig", no_argument, NULL, silentoldconfig},
453 {"defconfig", optional_argument, NULL, defconfig},
454 {"savedefconfig", required_argument, NULL, savedefconfig},
455 {"allnoconfig", no_argument, NULL, allnoconfig},
456 {"allyesconfig", no_argument, NULL, allyesconfig},
457 {"allmodconfig", no_argument, NULL, allmodconfig},
458 {"alldefconfig", no_argument, NULL, alldefconfig},
459 {"randconfig", no_argument, NULL, randconfig},
460 {"listnewconfig", no_argument, NULL, listnewconfig},
461 {"olddefconfig", no_argument, NULL, olddefconfig},
462 /*
463 * oldnoconfig is an alias of olddefconfig, because people already
464 * are dependent on its behavior(sets new symbols to their default
465 * value but not 'n') with the counter-intuitive name.
466 */
467 {"oldnoconfig", no_argument, NULL, olddefconfig},
468 {NULL, 0, NULL, 0}
469 };
470
471 static void conf_usage(const char *progname)
472 {
473
474 printf("Usage: %s [option] <kconfig-file>\n", progname);
475 printf("[option] is _one_ of the following:\n");
476 printf(" --listnewconfig List new options\n");
477 printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
478 printf(" --oldconfig Update a configuration using a provided .config as base\n");
479 printf(" --silentoldconfig Same as oldconfig, but quietly, additionally update deps\n");
480 printf(" --olddefconfig Same as silentoldconfig but sets new symbols to their default value\n");
481 printf(" --oldnoconfig An alias of olddefconfig\n");
482 printf(" --defconfig <file> New config with default defined in <file>\n");
483 printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
484 printf(" --allnoconfig New config where all options are answered with no\n");
485 printf(" --allyesconfig New config where all options are answered with yes\n");
486 printf(" --allmodconfig New config where all options are answered with mod\n");
487 printf(" --alldefconfig New config with all symbols set to default\n");
488 printf(" --randconfig New config with random answer to all options\n");
489 }
490
491 int main(int ac, char **av)
492 {
493 const char *progname = av[0];
494 int opt;
495 const char *name, *defconfig_file = NULL /* gcc uninit */;
496 struct stat tmpstat;
497
498 setlocale(LC_ALL, "");
499 bindtextdomain(PACKAGE, LOCALEDIR);
500 textdomain(PACKAGE);
501
502 tty_stdio = isatty(0) && isatty(1) && isatty(2);
503
504 while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
505 input_mode = (enum input_mode)opt;
506 switch (opt) {
507 case silentoldconfig:
508 sync_kconfig = 1;
509 break;
510 case defconfig:
511 case savedefconfig:
512 defconfig_file = optarg;
513 break;
514 case randconfig:
515 {
516 struct timeval now;
517 unsigned int seed;
518 char *seed_env;
519
520 /*
521 * Use microseconds derived seed,
522 * compensate for systems where it may be zero
523 */
524 gettimeofday(&now, NULL);
525 seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
526
527 seed_env = getenv("KCONFIG_SEED");
528 if( seed_env && *seed_env ) {
529 char *endp;
530 int tmp = (int)strtol(seed_env, &endp, 0);
531 if (*endp == '\0') {
532 seed = tmp;
533 }
534 }
535 fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
536 srand(seed);
537 break;
538 }
539 case oldaskconfig:
540 case oldconfig:
541 case allnoconfig:
542 case allyesconfig:
543 case allmodconfig:
544 case alldefconfig:
545 case listnewconfig:
546 case olddefconfig:
547 break;
548 case '?':
549 conf_usage(progname);
550 exit(1);
551 break;
552 }
553 }
554 if (ac == optind) {
555 printf(_("%s: Kconfig file missing\n"), av[0]);
556 conf_usage(progname);
557 exit(1);
558 }
559 name = av[optind];
560 conf_parse(name);
561 if (sync_kconfig) {
562 name = conf_get_configname();
563 if (stat(name, &tmpstat)) {
564 fprintf(stderr, _("***\n"
565 "*** Configuration file \"%s\" not found!\n"
566 "***\n"
567 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
568 "*** \"make menuconfig\" or \"make xconfig\").\n"
569 "***\n"), name);
570 exit(1);
571 }
572 }
573
574 switch (input_mode) {
575 case defconfig:
576 if (!defconfig_file)
577 defconfig_file = conf_get_default_confname();
578 if (conf_read(defconfig_file)) {
579 printf(_("***\n"
580 "*** Can't find default configuration \"%s\"!\n"
581 "***\n"), defconfig_file);
582 exit(1);
583 }
584 break;
585 case savedefconfig:
586 case silentoldconfig:
587 case oldaskconfig:
588 case oldconfig:
589 case listnewconfig:
590 case olddefconfig:
591 conf_read(NULL);
592 break;
593 case allnoconfig:
594 case allyesconfig:
595 case allmodconfig:
596 case alldefconfig:
597 case randconfig:
598 name = getenv("KCONFIG_ALLCONFIG");
599 if (!name)
600 break;
601 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
602 if (conf_read_simple(name, S_DEF_USER)) {
603 fprintf(stderr,
604 _("*** Can't read seed configuration \"%s\"!\n"),
605 name);
606 exit(1);
607 }
608 break;
609 }
610 switch (input_mode) {
611 case allnoconfig: name = "allno.config"; break;
612 case allyesconfig: name = "allyes.config"; break;
613 case allmodconfig: name = "allmod.config"; break;
614 case alldefconfig: name = "alldef.config"; break;
615 case randconfig: name = "allrandom.config"; break;
616 default: break;
617 }
618 if (conf_read_simple(name, S_DEF_USER) &&
619 conf_read_simple("all.config", S_DEF_USER)) {
620 fprintf(stderr,
621 _("*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n"),
622 name);
623 exit(1);
624 }
625 break;
626 default:
627 break;
628 }
629
630 if (sync_kconfig) {
631 if (conf_get_changed()) {
632 name = getenv("KCONFIG_NOSILENTUPDATE");
633 if (name && *name) {
634 fprintf(stderr,
635 _("\n*** The configuration requires explicit update.\n\n"));
636 return 1;
637 }
638 }
639 valid_stdin = tty_stdio;
640 }
641
642 switch (input_mode) {
643 case allnoconfig:
644 conf_set_all_new_symbols(def_no);
645 break;
646 case allyesconfig:
647 conf_set_all_new_symbols(def_yes);
648 break;
649 case allmodconfig:
650 conf_set_all_new_symbols(def_mod);
651 break;
652 case alldefconfig:
653 conf_set_all_new_symbols(def_default);
654 break;
655 case randconfig:
656 /* Really nothing to do in this loop */
657 while (conf_set_all_new_symbols(def_random)) ;
658 break;
659 case defconfig:
660 conf_set_all_new_symbols(def_default);
661 break;
662 case savedefconfig:
663 break;
664 case oldaskconfig:
665 rootEntry = &rootmenu;
666 conf(&rootmenu);
667 input_mode = silentoldconfig;
668 /* fall through */
669 case oldconfig:
670 case listnewconfig:
671 case olddefconfig:
672 case silentoldconfig:
673 /* Update until a loop caused no more changes */
674 do {
675 conf_cnt = 0;
676 check_conf(&rootmenu);
677 } while (conf_cnt &&
678 (input_mode != listnewconfig &&
679 input_mode != olddefconfig));
680 break;
681 }
682
683 if (sync_kconfig) {
684 /* silentoldconfig is used during the build so we shall update autoconf.
685 * All other commands are only used to generate a config.
686 */
687 if (conf_get_changed() && conf_write(NULL)) {
688 fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
689 exit(1);
690 }
691 if (conf_write_autoconf()) {
692 fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
693 return 1;
694 }
695 } else if (input_mode == savedefconfig) {
696 if (conf_write_defconfig(defconfig_file)) {
697 fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
698 defconfig_file);
699 return 1;
700 }
701 } else if (input_mode != listnewconfig) {
702 if (conf_write(NULL)) {
703 fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
704 exit(1);
705 }
706 }
707 return 0;
708 }
709
710 /*
711 * Helper function to facilitate fgets() by Jean Sacren.
712 */
713 void xfgets(char *str, int size, FILE *in)
714 {
715 if (fgets(str, size, in) == NULL)
716 fprintf(stderr, "\nError in reading or end of file.\n");
717 }
My buildroot patches