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6#include <ctype.h>
7#include <limits.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
20static void conf(struct menu *menu);
21static void check_conf(struct menu *menu);
22
23enum input_mode {
24 oldaskconfig,
25 syncconfig,
26 oldconfig,
27 allnoconfig,
28 allyesconfig,
29 allmodconfig,
30 alldefconfig,
31 randconfig,
32 defconfig,
33 savedefconfig,
34 listnewconfig,
35 olddefconfig,
36};
37static enum input_mode input_mode = oldaskconfig;
38
39static int indent = 1;
40static int tty_stdio;
41static int sync_kconfig;
42static int conf_cnt;
43static char line[PATH_MAX];
44static struct menu *rootEntry;
45
46static 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
56static 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
74static void xfgets(char *str, int size, FILE *in)
75{
76 if (!fgets(str, size, in))
77 fprintf(stderr, "\nError in reading or end of file.\n");
78
79 if (!tty_stdio)
80 printf("%s", str);
81}
82
83static 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_changeable(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 syncconfig:
103 if (sym_has_value(sym)) {
104 printf("%s\n", def);
105 return 0;
106 }
107
108 case oldaskconfig:
109 fflush(stdout);
110 xfgets(line, sizeof(line), stdin);
111 return 1;
112 default:
113 break;
114 }
115
116 switch (type) {
117 case S_INT:
118 case S_HEX:
119 case S_STRING:
120 printf("%s\n", def);
121 return 1;
122 default:
123 ;
124 }
125 printf("%s", line);
126 return 1;
127}
128
129static int conf_string(struct menu *menu)
130{
131 struct symbol *sym = menu->sym;
132 const char *def;
133
134 while (1) {
135 printf("%*s%s ", indent - 1, "", menu->prompt->text);
136 printf("(%s) ", sym->name);
137 def = sym_get_string_value(sym);
138 if (sym_get_string_value(sym))
139 printf("[%s] ", def);
140 if (!conf_askvalue(sym, def))
141 return 0;
142 switch (line[0]) {
143 case '\n':
144 break;
145 case '?':
146
147 if (line[1] == '\n') {
148 print_help(menu);
149 def = NULL;
150 break;
151 }
152
153 default:
154 line[strlen(line)-1] = 0;
155 def = line;
156 }
157 if (def && sym_set_string_value(sym, def))
158 return 0;
159 }
160}
161
162static int conf_sym(struct menu *menu)
163{
164 struct symbol *sym = menu->sym;
165 tristate oldval, newval;
166
167 while (1) {
168 printf("%*s%s ", indent - 1, "", menu->prompt->text);
169 if (sym->name)
170 printf("(%s) ", sym->name);
171 putchar('[');
172 oldval = sym_get_tristate_value(sym);
173 switch (oldval) {
174 case no:
175 putchar('N');
176 break;
177 case mod:
178 putchar('M');
179 break;
180 case yes:
181 putchar('Y');
182 break;
183 }
184 if (oldval != no && sym_tristate_within_range(sym, no))
185 printf("/n");
186 if (oldval != mod && sym_tristate_within_range(sym, mod))
187 printf("/m");
188 if (oldval != yes && sym_tristate_within_range(sym, yes))
189 printf("/y");
190 printf("/?] ");
191 if (!conf_askvalue(sym, sym_get_string_value(sym)))
192 return 0;
193 strip(line);
194
195 switch (line[0]) {
196 case 'n':
197 case 'N':
198 newval = no;
199 if (!line[1] || !strcmp(&line[1], "o"))
200 break;
201 continue;
202 case 'm':
203 case 'M':
204 newval = mod;
205 if (!line[1])
206 break;
207 continue;
208 case 'y':
209 case 'Y':
210 newval = yes;
211 if (!line[1] || !strcmp(&line[1], "es"))
212 break;
213 continue;
214 case 0:
215 newval = oldval;
216 break;
217 case '?':
218 goto help;
219 default:
220 continue;
221 }
222 if (sym_set_tristate_value(sym, newval))
223 return 0;
224help:
225 print_help(menu);
226 }
227}
228
229static int conf_choice(struct menu *menu)
230{
231 struct symbol *sym, *def_sym;
232 struct menu *child;
233 bool is_new;
234
235 sym = menu->sym;
236 is_new = !sym_has_value(sym);
237 if (sym_is_changeable(sym)) {
238 conf_sym(menu);
239 sym_calc_value(sym);
240 switch (sym_get_tristate_value(sym)) {
241 case no:
242 return 1;
243 case mod:
244 return 0;
245 case yes:
246 break;
247 }
248 } else {
249 switch (sym_get_tristate_value(sym)) {
250 case no:
251 return 1;
252 case mod:
253 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
254 return 0;
255 case yes:
256 break;
257 }
258 }
259
260 while (1) {
261 int cnt, def;
262
263 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
264 def_sym = sym_get_choice_value(sym);
265 cnt = def = 0;
266 line[0] = 0;
267 for (child = menu->list; child; child = child->next) {
268 if (!menu_is_visible(child))
269 continue;
270 if (!child->sym) {
271 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
272 continue;
273 }
274 cnt++;
275 if (child->sym == def_sym) {
276 def = cnt;
277 printf("%*c", indent, '>');
278 } else
279 printf("%*c", indent, ' ');
280 printf(" %d. %s", cnt, menu_get_prompt(child));
281 if (child->sym->name)
282 printf(" (%s)", child->sym->name);
283 if (!sym_has_value(child->sym))
284 printf(" (NEW)");
285 printf("\n");
286 }
287 printf("%*schoice", indent - 1, "");
288 if (cnt == 1) {
289 printf("[1]: 1\n");
290 goto conf_childs;
291 }
292 printf("[1-%d?]: ", cnt);
293 switch (input_mode) {
294 case oldconfig:
295 case syncconfig:
296 if (!is_new) {
297 cnt = def;
298 printf("%d\n", cnt);
299 break;
300 }
301
302 case oldaskconfig:
303 fflush(stdout);
304 xfgets(line, sizeof(line), stdin);
305 strip(line);
306 if (line[0] == '?') {
307 print_help(menu);
308 continue;
309 }
310 if (!line[0])
311 cnt = def;
312 else if (isdigit(line[0]))
313 cnt = atoi(line);
314 else
315 continue;
316 break;
317 default:
318 break;
319 }
320
321 conf_childs:
322 for (child = menu->list; child; child = child->next) {
323 if (!child->sym || !menu_is_visible(child))
324 continue;
325 if (!--cnt)
326 break;
327 }
328 if (!child)
329 continue;
330 if (line[0] && line[strlen(line) - 1] == '?') {
331 print_help(child);
332 continue;
333 }
334 sym_set_choice_value(sym, child->sym);
335 for (child = child->list; child; child = child->next) {
336 indent += 2;
337 conf(child);
338 indent -= 2;
339 }
340 return 1;
341 }
342}
343
344static void conf(struct menu *menu)
345{
346 struct symbol *sym;
347 struct property *prop;
348 struct menu *child;
349
350 if (!menu_is_visible(menu))
351 return;
352
353 sym = menu->sym;
354 prop = menu->prompt;
355 if (prop) {
356 const char *prompt;
357
358 switch (prop->type) {
359 case P_MENU:
360
361
362
363
364 if (input_mode != oldaskconfig && rootEntry != menu) {
365 check_conf(menu);
366 return;
367 }
368
369 case P_COMMENT:
370 prompt = menu_get_prompt(menu);
371 if (prompt)
372 printf("%*c\n%*c %s\n%*c\n",
373 indent, '*',
374 indent, '*', prompt,
375 indent, '*');
376 default:
377 ;
378 }
379 }
380
381 if (!sym)
382 goto conf_childs;
383
384 if (sym_is_choice(sym)) {
385 conf_choice(menu);
386 if (sym->curr.tri != mod)
387 return;
388 goto conf_childs;
389 }
390
391 switch (sym->type) {
392 case S_INT:
393 case S_HEX:
394 case S_STRING:
395 conf_string(menu);
396 break;
397 default:
398 conf_sym(menu);
399 break;
400 }
401
402conf_childs:
403 if (sym)
404 indent += 2;
405 for (child = menu->list; child; child = child->next)
406 conf(child);
407 if (sym)
408 indent -= 2;
409}
410
411static void check_conf(struct menu *menu)
412{
413 struct symbol *sym;
414 struct menu *child;
415
416 if (!menu_is_visible(menu))
417 return;
418
419 sym = menu->sym;
420 if (sym && !sym_has_value(sym)) {
421 if (sym_is_changeable(sym) ||
422 (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
423 if (input_mode == listnewconfig) {
424 if (sym->name) {
425 const char *str;
426
427 if (sym->type == S_STRING) {
428 str = sym_get_string_value(sym);
429 str = sym_escape_string_value(str);
430 printf("%s%s=%s\n", CONFIG_, sym->name, str);
431 free((void *)str);
432 } else {
433 str = sym_get_string_value(sym);
434 printf("%s%s=%s\n", CONFIG_, sym->name, str);
435 }
436 }
437 } else {
438 if (!conf_cnt++)
439 printf("*\n* Restart config...\n*\n");
440 rootEntry = menu_get_parent_menu(menu);
441 conf(rootEntry);
442 }
443 }
444 }
445
446 for (child = menu->list; child; child = child->next)
447 check_conf(child);
448}
449
450static struct option long_opts[] = {
451 {"oldaskconfig", no_argument, NULL, oldaskconfig},
452 {"oldconfig", no_argument, NULL, oldconfig},
453 {"syncconfig", no_argument, NULL, syncconfig},
454 {"defconfig", required_argument, NULL, defconfig},
455 {"savedefconfig", required_argument, NULL, savedefconfig},
456 {"allnoconfig", no_argument, NULL, allnoconfig},
457 {"allyesconfig", no_argument, NULL, allyesconfig},
458 {"allmodconfig", no_argument, NULL, allmodconfig},
459 {"alldefconfig", no_argument, NULL, alldefconfig},
460 {"randconfig", no_argument, NULL, randconfig},
461 {"listnewconfig", no_argument, NULL, listnewconfig},
462 {"olddefconfig", no_argument, NULL, olddefconfig},
463 {NULL, 0, NULL, 0}
464};
465
466static void conf_usage(const char *progname)
467{
468
469 printf("Usage: %s [-s] [option] <kconfig-file>\n", progname);
470 printf("[option] is _one_ of the following:\n");
471 printf(" --listnewconfig List new options\n");
472 printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
473 printf(" --oldconfig Update a configuration using a provided .config as base\n");
474 printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
475 " include/{generated/,config/}\n");
476 printf(" --olddefconfig Same as oldconfig but sets new symbols to their default value\n");
477 printf(" --defconfig <file> New config with default defined in <file>\n");
478 printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
479 printf(" --allnoconfig New config where all options are answered with no\n");
480 printf(" --allyesconfig New config where all options are answered with yes\n");
481 printf(" --allmodconfig New config where all options are answered with mod\n");
482 printf(" --alldefconfig New config with all symbols set to default\n");
483 printf(" --randconfig New config with random answer to all options\n");
484}
485
486int main(int ac, char **av)
487{
488 const char *progname = av[0];
489 int opt;
490 const char *name, *defconfig_file = NULL ;
491 int no_conf_write = 0;
492
493 tty_stdio = isatty(0) && isatty(1);
494
495 while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
496 if (opt == 's') {
497 conf_set_message_callback(NULL);
498 continue;
499 }
500 input_mode = (enum input_mode)opt;
501 switch (opt) {
502 case syncconfig:
503
504
505
506
507 conf_set_message_callback(NULL);
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
522
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 fprintf(stderr, "%s: Kconfig file missing\n", av[0]);
556 conf_usage(progname);
557 exit(1);
558 }
559 name = av[optind];
560 conf_parse(name);
561
562
563 switch (input_mode) {
564 case defconfig:
565 if (conf_read(defconfig_file)) {
566 fprintf(stderr,
567 "***\n"
568 "*** Can't find default configuration \"%s\"!\n"
569 "***\n",
570 defconfig_file);
571 exit(1);
572 }
573 break;
574 case savedefconfig:
575 case syncconfig:
576 case oldaskconfig:
577 case oldconfig:
578 case listnewconfig:
579 case olddefconfig:
580 conf_read(NULL);
581 break;
582 case allnoconfig:
583 case allyesconfig:
584 case allmodconfig:
585 case alldefconfig:
586 case randconfig:
587 name = getenv("KCONFIG_ALLCONFIG");
588 if (!name)
589 break;
590 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
591 if (conf_read_simple(name, S_DEF_USER)) {
592 fprintf(stderr,
593 "*** Can't read seed configuration \"%s\"!\n",
594 name);
595 exit(1);
596 }
597 break;
598 }
599 switch (input_mode) {
600 case allnoconfig: name = "allno.config"; break;
601 case allyesconfig: name = "allyes.config"; break;
602 case allmodconfig: name = "allmod.config"; break;
603 case alldefconfig: name = "alldef.config"; break;
604 case randconfig: name = "allrandom.config"; break;
605 default: break;
606 }
607 if (conf_read_simple(name, S_DEF_USER) &&
608 conf_read_simple("all.config", S_DEF_USER)) {
609 fprintf(stderr,
610 "*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n",
611 name);
612 exit(1);
613 }
614 break;
615 default:
616 break;
617 }
618
619 if (sync_kconfig) {
620 name = getenv("KCONFIG_NOSILENTUPDATE");
621 if (name && *name) {
622 if (conf_get_changed()) {
623 fprintf(stderr,
624 "\n*** The configuration requires explicit update.\n\n");
625 return 1;
626 }
627 no_conf_write = 1;
628 }
629 }
630
631 switch (input_mode) {
632 case allnoconfig:
633 conf_set_all_new_symbols(def_no);
634 break;
635 case allyesconfig:
636 conf_set_all_new_symbols(def_yes);
637 break;
638 case allmodconfig:
639 conf_set_all_new_symbols(def_mod);
640 break;
641 case alldefconfig:
642 conf_set_all_new_symbols(def_default);
643 break;
644 case randconfig:
645
646 while (conf_set_all_new_symbols(def_random)) ;
647 break;
648 case defconfig:
649 conf_set_all_new_symbols(def_default);
650 break;
651 case savedefconfig:
652 break;
653 case oldaskconfig:
654 rootEntry = &rootmenu;
655 conf(&rootmenu);
656 input_mode = oldconfig;
657
658 case oldconfig:
659 case listnewconfig:
660 case syncconfig:
661
662 do {
663 conf_cnt = 0;
664 check_conf(&rootmenu);
665 } while (conf_cnt);
666 break;
667 case olddefconfig:
668 default:
669 break;
670 }
671
672 if (input_mode == savedefconfig) {
673 if (conf_write_defconfig(defconfig_file)) {
674 fprintf(stderr, "n*** Error while saving defconfig to: %s\n\n",
675 defconfig_file);
676 return 1;
677 }
678 } else if (input_mode != listnewconfig) {
679 if (!no_conf_write && conf_write(NULL)) {
680 fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
681 exit(1);
682 }
683
684
685
686
687
688
689
690
691
692
693 if (conf_write_autoconf(sync_kconfig) && sync_kconfig) {
694 fprintf(stderr,
695 "\n*** Error during sync of the configuration.\n\n");
696 return 1;
697 }
698 }
699 return 0;
700}
701
