Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
[linux-2.6] / 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 <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 <sys/stat.h>
14
15 #define LKC_DIRECT_LINK
16 #include "lkc.h"
17
18 static void conf(struct menu *menu);
19 static void check_conf(struct menu *menu);
20
21 enum {
22         ask_all,
23         ask_new,
24         ask_silent,
25         set_default,
26         set_yes,
27         set_mod,
28         set_no,
29         set_random
30 } input_mode = ask_all;
31 char *defconfig_file;
32
33 static int indent = 1;
34 static int valid_stdin = 1;
35 static int sync_kconfig;
36 static int conf_cnt;
37 static char line[128];
38 static struct menu *rootEntry;
39
40 static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
41
42 static const char *get_help(struct menu *menu)
43 {
44         if (menu_has_help(menu))
45                 return _(menu_get_help(menu));
46         else
47                 return nohelp_text;
48 }
49
50 static void strip(char *str)
51 {
52         char *p = str;
53         int l;
54
55         while ((isspace(*p)))
56                 p++;
57         l = strlen(p);
58         if (p != str)
59                 memmove(str, p, l + 1);
60         if (!l)
61                 return;
62         p = str + l - 1;
63         while ((isspace(*p)))
64                 *p-- = 0;
65 }
66
67 static void check_stdin(void)
68 {
69         if (!valid_stdin) {
70                 printf(_("aborted!\n\n"));
71                 printf(_("Console input/output is redirected. "));
72                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
73                 exit(1);
74         }
75 }
76
77 static int conf_askvalue(struct symbol *sym, const char *def)
78 {
79         enum symbol_type type = sym_get_type(sym);
80
81         if (!sym_has_value(sym))
82                 printf(_("(NEW) "));
83
84         line[0] = '\n';
85         line[1] = 0;
86
87         if (!sym_is_changable(sym)) {
88                 printf("%s\n", def);
89                 line[0] = '\n';
90                 line[1] = 0;
91                 return 0;
92         }
93
94         switch (input_mode) {
95         case ask_new:
96         case ask_silent:
97                 if (sym_has_value(sym)) {
98                         printf("%s\n", def);
99                         return 0;
100                 }
101                 check_stdin();
102         case ask_all:
103                 fflush(stdout);
104                 fgets(line, 128, stdin);
105                 return 1;
106         default:
107                 break;
108         }
109
110         switch (type) {
111         case S_INT:
112         case S_HEX:
113         case S_STRING:
114                 printf("%s\n", def);
115                 return 1;
116         default:
117                 ;
118         }
119         printf("%s", line);
120         return 1;
121 }
122
123 int conf_string(struct menu *menu)
124 {
125         struct symbol *sym = menu->sym;
126         const char *def;
127
128         while (1) {
129                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
130                 printf("(%s) ", sym->name);
131                 def = sym_get_string_value(sym);
132                 if (sym_get_string_value(sym))
133                         printf("[%s] ", def);
134                 if (!conf_askvalue(sym, def))
135                         return 0;
136                 switch (line[0]) {
137                 case '\n':
138                         break;
139                 case '?':
140                         /* print help */
141                         if (line[1] == '\n') {
142                                 printf("\n%s\n", get_help(menu));
143                                 def = NULL;
144                                 break;
145                         }
146                 default:
147                         line[strlen(line)-1] = 0;
148                         def = line;
149                 }
150                 if (def && sym_set_string_value(sym, def))
151                         return 0;
152         }
153 }
154
155 static int conf_sym(struct menu *menu)
156 {
157         struct symbol *sym = menu->sym;
158         int type;
159         tristate oldval, newval;
160
161         while (1) {
162                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
163                 if (sym->name)
164                         printf("(%s) ", sym->name);
165                 type = sym_get_type(sym);
166                 putchar('[');
167                 oldval = sym_get_tristate_value(sym);
168                 switch (oldval) {
169                 case no:
170                         putchar('N');
171                         break;
172                 case mod:
173                         putchar('M');
174                         break;
175                 case yes:
176                         putchar('Y');
177                         break;
178                 }
179                 if (oldval != no && sym_tristate_within_range(sym, no))
180                         printf("/n");
181                 if (oldval != mod && sym_tristate_within_range(sym, mod))
182                         printf("/m");
183                 if (oldval != yes && sym_tristate_within_range(sym, yes))
184                         printf("/y");
185                 if (menu_has_help(menu))
186                         printf("/?");
187                 printf("] ");
188                 if (!conf_askvalue(sym, sym_get_string_value(sym)))
189                         return 0;
190                 strip(line);
191
192                 switch (line[0]) {
193                 case 'n':
194                 case 'N':
195                         newval = no;
196                         if (!line[1] || !strcmp(&line[1], "o"))
197                                 break;
198                         continue;
199                 case 'm':
200                 case 'M':
201                         newval = mod;
202                         if (!line[1])
203                                 break;
204                         continue;
205                 case 'y':
206                 case 'Y':
207                         newval = yes;
208                         if (!line[1] || !strcmp(&line[1], "es"))
209                                 break;
210                         continue;
211                 case 0:
212                         newval = oldval;
213                         break;
214                 case '?':
215                         goto help;
216                 default:
217                         continue;
218                 }
219                 if (sym_set_tristate_value(sym, newval))
220                         return 0;
221 help:
222                 printf("\n%s\n", get_help(menu));
223         }
224 }
225
226 static int conf_choice(struct menu *menu)
227 {
228         struct symbol *sym, *def_sym;
229         struct menu *child;
230         int type;
231         bool is_new;
232
233         sym = menu->sym;
234         type = sym_get_type(sym);
235         is_new = !sym_has_value(sym);
236         if (sym_is_changable(sym)) {
237                 conf_sym(menu);
238                 sym_calc_value(sym);
239                 switch (sym_get_tristate_value(sym)) {
240                 case no:
241                         return 1;
242                 case mod:
243                         return 0;
244                 case yes:
245                         break;
246                 }
247         } else {
248                 switch (sym_get_tristate_value(sym)) {
249                 case no:
250                         return 1;
251                 case mod:
252                         printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
253                         return 0;
254                 case yes:
255                         break;
256                 }
257         }
258
259         while (1) {
260                 int cnt, def;
261
262                 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
263                 def_sym = sym_get_choice_value(sym);
264                 cnt = def = 0;
265                 line[0] = 0;
266                 for (child = menu->list; child; child = child->next) {
267                         if (!menu_is_visible(child))
268                                 continue;
269                         if (!child->sym) {
270                                 printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
271                                 continue;
272                         }
273                         cnt++;
274                         if (child->sym == def_sym) {
275                                 def = cnt;
276                                 printf("%*c", indent, '>');
277                         } else
278                                 printf("%*c", indent, ' ');
279                         printf(" %d. %s", cnt, _(menu_get_prompt(child)));
280                         if (child->sym->name)
281                                 printf(" (%s)", child->sym->name);
282                         if (!sym_has_value(child->sym))
283                                 printf(_(" (NEW)"));
284                         printf("\n");
285                 }
286                 printf(_("%*schoice"), indent - 1, "");
287                 if (cnt == 1) {
288                         printf("[1]: 1\n");
289                         goto conf_childs;
290                 }
291                 printf("[1-%d", cnt);
292                 if (menu_has_help(menu))
293                         printf("?");
294                 printf("]: ");
295                 switch (input_mode) {
296                 case ask_new:
297                 case ask_silent:
298                         if (!is_new) {
299                                 cnt = def;
300                                 printf("%d\n", cnt);
301                                 break;
302                         }
303                         check_stdin();
304                 case ask_all:
305                         fflush(stdout);
306                         fgets(line, 128, stdin);
307                         strip(line);
308                         if (line[0] == '?') {
309                                 printf("\n%s\n", get_help(menu));
310                                 continue;
311                         }
312                         if (!line[0])
313                                 cnt = def;
314                         else if (isdigit(line[0]))
315                                 cnt = atoi(line);
316                         else
317                                 continue;
318                         break;
319                 default:
320                         break;
321                 }
322
323         conf_childs:
324                 for (child = menu->list; child; child = child->next) {
325                         if (!child->sym || !menu_is_visible(child))
326                                 continue;
327                         if (!--cnt)
328                                 break;
329                 }
330                 if (!child)
331                         continue;
332                 if (line[strlen(line) - 1] == '?') {
333                         printf("\n%s\n", get_help(child));
334                         continue;
335                 }
336                 sym_set_choice_value(sym, child->sym);
337                 for (child = child->list; child; child = child->next) {
338                         indent += 2;
339                         conf(child);
340                         indent -= 2;
341                 }
342                 return 1;
343         }
344 }
345
346 static void conf(struct menu *menu)
347 {
348         struct symbol *sym;
349         struct property *prop;
350         struct menu *child;
351
352         if (!menu_is_visible(menu))
353                 return;
354
355         sym = menu->sym;
356         prop = menu->prompt;
357         if (prop) {
358                 const char *prompt;
359
360                 switch (prop->type) {
361                 case P_MENU:
362                         if (input_mode == ask_silent && rootEntry != menu) {
363                                 check_conf(menu);
364                                 return;
365                         }
366                 case P_COMMENT:
367                         prompt = menu_get_prompt(menu);
368                         if (prompt)
369                                 printf("%*c\n%*c %s\n%*c\n",
370                                         indent, '*',
371                                         indent, '*', _(prompt),
372                                         indent, '*');
373                 default:
374                         ;
375                 }
376         }
377
378         if (!sym)
379                 goto conf_childs;
380
381         if (sym_is_choice(sym)) {
382                 conf_choice(menu);
383                 if (sym->curr.tri != mod)
384                         return;
385                 goto conf_childs;
386         }
387
388         switch (sym->type) {
389         case S_INT:
390         case S_HEX:
391         case S_STRING:
392                 conf_string(menu);
393                 break;
394         default:
395                 conf_sym(menu);
396                 break;
397         }
398
399 conf_childs:
400         if (sym)
401                 indent += 2;
402         for (child = menu->list; child; child = child->next)
403                 conf(child);
404         if (sym)
405                 indent -= 2;
406 }
407
408 static void check_conf(struct menu *menu)
409 {
410         struct symbol *sym;
411         struct menu *child;
412
413         if (!menu_is_visible(menu))
414                 return;
415
416         sym = menu->sym;
417         if (sym && !sym_has_value(sym)) {
418                 if (sym_is_changable(sym) ||
419                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
420                         if (!conf_cnt++)
421                                 printf(_("*\n* Restart config...\n*\n"));
422                         rootEntry = menu_get_parent_menu(menu);
423                         conf(rootEntry);
424                 }
425         }
426
427         for (child = menu->list; child; child = child->next)
428                 check_conf(child);
429 }
430
431 int main(int ac, char **av)
432 {
433         int opt;
434         const char *name;
435         struct stat tmpstat;
436
437         setlocale(LC_ALL, "");
438         bindtextdomain(PACKAGE, LOCALEDIR);
439         textdomain(PACKAGE);
440
441         while ((opt = getopt(ac, av, "osdD:nmyrh")) != -1) {
442                 switch (opt) {
443                 case 'o':
444                         input_mode = ask_silent;
445                         break;
446                 case 's':
447                         input_mode = ask_silent;
448                         sync_kconfig = 1;
449                         break;
450                 case 'd':
451                         input_mode = set_default;
452                         break;
453                 case 'D':
454                         input_mode = set_default;
455                         defconfig_file = optarg;
456                         break;
457                 case 'n':
458                         input_mode = set_no;
459                         break;
460                 case 'm':
461                         input_mode = set_mod;
462                         break;
463                 case 'y':
464                         input_mode = set_yes;
465                         break;
466                 case 'r':
467                         input_mode = set_random;
468                         srand(time(NULL));
469                         break;
470                 case 'h':
471                         printf(_("See README for usage info\n"));
472                         exit(0);
473                         break;
474                 default:
475                         fprintf(stderr, _("See README for usage info\n"));
476                         exit(1);
477                 }
478         }
479         if (ac == optind) {
480                 printf(_("%s: Kconfig file missing\n"), av[0]);
481                 exit(1);
482         }
483         name = av[optind];
484         conf_parse(name);
485         //zconfdump(stdout);
486         if (sync_kconfig) {
487                 if (stat(".config", &tmpstat)) {
488                         fprintf(stderr, _("***\n"
489                                 "*** You have not yet configured your kernel!\n"
490                                 "*** (missing kernel .config file)\n"
491                                 "***\n"
492                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
493                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
494                                 "***\n"));
495                         exit(1);
496                 }
497         }
498
499         switch (input_mode) {
500         case set_default:
501                 if (!defconfig_file)
502                         defconfig_file = conf_get_default_confname();
503                 if (conf_read(defconfig_file)) {
504                         printf(_("***\n"
505                                 "*** Can't find default configuration \"%s\"!\n"
506                                 "***\n"), defconfig_file);
507                         exit(1);
508                 }
509                 break;
510         case ask_silent:
511         case ask_all:
512         case ask_new:
513                 conf_read(NULL);
514                 break;
515         case set_no:
516         case set_mod:
517         case set_yes:
518         case set_random:
519                 name = getenv("KCONFIG_ALLCONFIG");
520                 if (name && !stat(name, &tmpstat)) {
521                         conf_read_simple(name, S_DEF_USER);
522                         break;
523                 }
524                 switch (input_mode) {
525                 case set_no:     name = "allno.config"; break;
526                 case set_mod:    name = "allmod.config"; break;
527                 case set_yes:    name = "allyes.config"; break;
528                 case set_random: name = "allrandom.config"; break;
529                 default: break;
530                 }
531                 if (!stat(name, &tmpstat))
532                         conf_read_simple(name, S_DEF_USER);
533                 else if (!stat("all.config", &tmpstat))
534                         conf_read_simple("all.config", S_DEF_USER);
535                 break;
536         default:
537                 break;
538         }
539
540         if (sync_kconfig) {
541                 if (conf_get_changed()) {
542                         name = getenv("KCONFIG_NOSILENTUPDATE");
543                         if (name && *name) {
544                                 fprintf(stderr,
545                                         _("\n*** Kernel configuration requires explicit update.\n\n"));
546                                 return 1;
547                         }
548                 }
549                 valid_stdin = isatty(0) && isatty(1) && isatty(2);
550         }
551
552         switch (input_mode) {
553         case set_no:
554                 conf_set_all_new_symbols(def_no);
555                 break;
556         case set_yes:
557                 conf_set_all_new_symbols(def_yes);
558                 break;
559         case set_mod:
560                 conf_set_all_new_symbols(def_mod);
561                 break;
562         case set_random:
563                 conf_set_all_new_symbols(def_random);
564                 break;
565         case set_default:
566                 conf_set_all_new_symbols(def_default);
567                 break;
568         case ask_new:
569         case ask_all:
570                 rootEntry = &rootmenu;
571                 conf(&rootmenu);
572                 input_mode = ask_silent;
573                 /* fall through */
574         case ask_silent:
575                 /* Update until a loop caused no more changes */
576                 do {
577                         conf_cnt = 0;
578                         check_conf(&rootmenu);
579                 } while (conf_cnt);
580                 break;
581         }
582
583         if (sync_kconfig) {
584                 /* silentoldconfig is used during the build so we shall update autoconf.
585                  * All other commands are only used to generate a config.
586                  */
587                 if (conf_get_changed() && conf_write(NULL)) {
588                         fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
589                         exit(1);
590                 }
591                 if (conf_write_autoconf()) {
592                         fprintf(stderr, _("\n*** Error during update of the kernel configuration.\n\n"));
593                         return 1;
594                 }
595         } else {
596                 if (conf_write(NULL)) {
597                         fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
598                         exit(1);
599                 }
600         }
601         return 0;
602 }