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build: scripts/config - update to kconfig-v6.6.16
[openwrt/staging/stintel.git] / scripts / config / mconf.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
4 *
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
7 *
8 * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
9 */
10
11 #include <ctype.h>
12 #include <errno.h>
13 #include <fcntl.h>
14 #include <limits.h>
15 #include <stdarg.h>
16 #include <stdlib.h>
17 #include <string.h>
18 #include <strings.h>
19 #include <signal.h>
20 #include <unistd.h>
21
22 #include "lkc.h"
23 #include "lxdialog/dialog.h"
24
25 static const char mconf_readme[] =
26 "OpenWrt config is based on Kernel kconfig\n"
27 "so ipkg packages are referred here as modules.\n"
28 "\n"
29 "Overview\n"
30 "--------\n"
31 "This interface lets you select features and parameters for the build.\n"
32 "Features can either be built-in, modularized, or ignored. Parameters\n"
33 "must be entered in as decimal or hexadecimal numbers or text.\n"
34 "\n"
35 "Menu items beginning with following braces represent features that\n"
36 " [ ] can be built in or removed\n"
37 " < > can be built in, modularized or removed\n"
38 " { } can be built in or modularized (selected by other feature)\n"
39 " - - are selected by other feature,\n"
40 "while *, M or whitespace inside braces means to build in, build as\n"
41 "a module or to exclude the feature respectively.\n"
42 "\n"
43 "To change any of these features, highlight it with the cursor\n"
44 "keys and press <Y> to build it in, <M> to make it a module or\n"
45 "<N> to remove it. You may also press the <Space Bar> to cycle\n"
46 "through the available options (i.e. Y->N->M->Y).\n"
47 "\n"
48 "Some additional keyboard hints:\n"
49 "\n"
50 "Menus\n"
51 "----------\n"
52 "o Use the Up/Down arrow keys (cursor keys) to highlight the item you\n"
53 " wish to change or the submenu you wish to select and press <Enter>.\n"
54 " Submenus are designated by \"--->\", empty ones by \"----\".\n"
55 "\n"
56 " Shortcut: Press the option's highlighted letter (hotkey).\n"
57 " Pressing a hotkey more than once will sequence\n"
58 " through all visible items which use that hotkey.\n"
59 "\n"
60 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
61 " unseen options into view.\n"
62 "\n"
63 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
64 " and press <ENTER>.\n"
65 "\n"
66 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
67 " using those letters. You may press a single <ESC>, but\n"
68 " there is a delayed response which you may find annoying.\n"
69 "\n"
70 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
71 " <Exit>, <Help>, <Save>, and <Load>.\n"
72 "\n"
73 "o To get help with an item, use the cursor keys to highlight <Help>\n"
74 " and press <ENTER>.\n"
75 "\n"
76 " Shortcut: Press <H> or <?>.\n"
77 "\n"
78 "o To toggle the display of hidden options, press <Z>.\n"
79 "\n"
80 "\n"
81 "Radiolists (Choice lists)\n"
82 "-----------\n"
83 "o Use the cursor keys to select the option you wish to set and press\n"
84 " <S> or the <SPACE BAR>.\n"
85 "\n"
86 " Shortcut: Press the first letter of the option you wish to set then\n"
87 " press <S> or <SPACE BAR>.\n"
88 "\n"
89 "o To see available help for the item, use the cursor keys to highlight\n"
90 " <Help> and Press <ENTER>.\n"
91 "\n"
92 " Shortcut: Press <H> or <?>.\n"
93 "\n"
94 " Also, the <TAB> and cursor keys will cycle between <Select> and\n"
95 " <Help>\n"
96 "\n"
97 "\n"
98 "Data Entry\n"
99 "-----------\n"
100 "o Enter the requested information and press <ENTER>\n"
101 " If you are entering hexadecimal values, it is not necessary to\n"
102 " add the '0x' prefix to the entry.\n"
103 "\n"
104 "o For help, use the <TAB> or cursor keys to highlight the help option\n"
105 " and press <ENTER>. You can try <TAB><H> as well.\n"
106 "\n"
107 "\n"
108 "Text Box (Help Window)\n"
109 "--------\n"
110 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
111 " keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n"
112 " those who are familiar with less and lynx.\n"
113 "\n"
114 "o Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
115 "\n"
116 "\n"
117 "Alternate Configuration Files\n"
118 "-----------------------------\n"
119 "Menuconfig supports the use of alternate configuration files for\n"
120 "those who, for various reasons, find it necessary to switch\n"
121 "between different configurations.\n"
122 "\n"
123 "The <Save> button will let you save the current configuration to\n"
124 "a file of your choosing. Use the <Load> button to load a previously\n"
125 "saved alternate configuration.\n"
126 "\n"
127 "Even if you don't use alternate configuration files, but you find\n"
128 "during a Menuconfig session that you have completely messed up your\n"
129 "settings, you may use the <Load> button to restore your previously\n"
130 "saved settings from \".config\" without restarting Menuconfig.\n"
131 "\n"
132 "Other information\n"
133 "-----------------\n"
134 "If you use Menuconfig in an XTERM window, make sure you have your\n"
135 "$TERM variable set to point to an xterm definition which supports\n"
136 "color. Otherwise, Menuconfig will look rather bad. Menuconfig will\n"
137 "not display correctly in an RXVT window because rxvt displays only one\n"
138 "intensity of color, bright.\n"
139 "\n"
140 "Menuconfig will display larger menus on screens or xterms which are\n"
141 "set to display more than the standard 25 row by 80 column geometry.\n"
142 "In order for this to work, the \"stty size\" command must be able to\n"
143 "display the screen's current row and column geometry. I STRONGLY\n"
144 "RECOMMEND that you make sure you do NOT have the shell variables\n"
145 "LINES and COLUMNS exported into your environment. Some distributions\n"
146 "export those variables via /etc/profile. Some ncurses programs can\n"
147 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
148 "the true screen size.\n"
149 "\n"
150 "Optional personality available\n"
151 "------------------------------\n"
152 "If you prefer to have all of the options listed in a single menu,\n"
153 "rather than the default multimenu hierarchy, run the menuconfig with\n"
154 "MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
155 "\n"
156 "make MENUCONFIG_MODE=single_menu menuconfig\n"
157 "\n"
158 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
159 "is already unrolled.\n"
160 "\n"
161 "Note that this mode can eventually be a little more CPU expensive\n"
162 "(especially with a larger number of unrolled categories) than the\n"
163 "default mode.\n"
164 "\n"
165
166 "Search\n"
167 "-------\n"
168 "Pressing the forward-slash (/) anywhere brings up a search dialog box.\n"
169 "\n"
170
171 "Different color themes available\n"
172 "--------------------------------\n"
173 "It is possible to select different color themes using the variable\n"
174 "MENUCONFIG_COLOR. To select a theme use:\n"
175 "\n"
176 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
177 "\n"
178 "Available themes are\n"
179 " mono => selects colors suitable for monochrome displays\n"
180 " blackbg => selects a color scheme with black background\n"
181 " classic => theme with blue background. The classic look\n"
182 " bluetitle => an LCD friendly version of classic. (default)\n"
183 "\n",
184 menu_instructions[] =
185 "Arrow keys navigate the menu. "
186 "<Enter> selects submenus ---> (or empty submenus ----). "
187 "Highlighted letters are hotkeys. "
188 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
189 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
190 "Legend: [*] built-in [ ] excluded <M> module < > module capable",
191 radiolist_instructions[] =
192 "Use the arrow keys to navigate this window or "
193 "press the hotkey of the item you wish to select "
194 "followed by the <SPACE BAR>. "
195 "Press <?> for additional information about this option.",
196 inputbox_instructions_int[] =
197 "Please enter a decimal value. "
198 "Fractions will not be accepted. "
199 "Use the <TAB> key to move from the input field to the buttons below it.",
200 inputbox_instructions_hex[] =
201 "Please enter a hexadecimal value. "
202 "Use the <TAB> key to move from the input field to the buttons below it.",
203 inputbox_instructions_string[] =
204 "Please enter a string value. "
205 "Use the <TAB> key to move from the input field to the buttons below it.",
206 setmod_text[] =
207 "This feature depends on another which has been configured as a module.\n"
208 "As a result, this feature will be built as a module.",
209 load_config_text[] =
210 "Enter the name of the configuration file you wish to load. "
211 "Accept the name shown to restore the configuration you "
212 "last retrieved. Leave blank to abort.",
213 load_config_help[] =
214 "\n"
215 "For various reasons, one may wish to keep several different\n"
216 "configurations available on a single machine.\n"
217 "\n"
218 "If you have saved a previous configuration in a file other than the\n"
219 "default one, entering its name here will allow you to modify that\n"
220 "configuration.\n"
221 "\n"
222 "If you are uncertain, then you have probably never used alternate\n"
223 "configuration files. You should therefore leave this blank to abort.\n",
224 save_config_text[] =
225 "Enter a filename to which this configuration should be saved "
226 "as an alternate. Leave blank to abort.",
227 save_config_help[] =
228 "\n"
229 "For various reasons, one may wish to keep different configurations\n"
230 "available on a single machine.\n"
231 "\n"
232 "Entering a file name here will allow you to later retrieve, modify\n"
233 "and use the current configuration as an alternate to whatever\n"
234 "configuration options you have selected at that time.\n"
235 "\n"
236 "If you are uncertain what all this means then you should probably\n"
237 "leave this blank.\n",
238 search_help[] =
239 "\n"
240 "Search for symbols and display their relations.\n"
241 "Regular expressions are allowed.\n"
242 "Example: search for \"^FOO\"\n"
243 "Result:\n"
244 "-----------------------------------------------------------------\n"
245 "Symbol: FOO [=m]\n"
246 "Type : tristate\n"
247 "Prompt: Foo bus is used to drive the bar HW\n"
248 " Location:\n"
249 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
250 " -> PCI support (PCI [=y])\n"
251 "(1) -> PCI access mode (<choice> [=y])\n"
252 " Defined at drivers/pci/Kconfig:47\n"
253 " Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
254 " Selects: LIBCRC32\n"
255 " Selected by: BAR [=n]\n"
256 "-----------------------------------------------------------------\n"
257 "o The line 'Type:' shows the type of the configuration option for\n"
258 " this symbol (bool, tristate, string, ...)\n"
259 "o The line 'Prompt:' shows the text used in the menu structure for\n"
260 " this symbol\n"
261 "o The 'Defined at' line tells at what file / line number the symbol\n"
262 " is defined\n"
263 "o The 'Depends on:' line tells what symbols need to be defined for\n"
264 " this symbol to be visible in the menu (selectable)\n"
265 "o The 'Location:' lines tells where in the menu structure this symbol\n"
266 " is located\n"
267 " A location followed by a [=y] indicates that this is a\n"
268 " selectable menu item - and the current value is displayed inside\n"
269 " brackets.\n"
270 " Press the key in the (#) prefix to jump directly to that\n"
271 " location. You will be returned to the current search results\n"
272 " after exiting this new menu.\n"
273 "o The 'Selects:' line tells what symbols will be automatically\n"
274 " selected if this symbol is selected (y or m)\n"
275 "o The 'Selected by' line tells what symbol has selected this symbol\n"
276 "\n"
277 "Only relevant lines are shown.\n"
278 "\n\n"
279 "Search examples:\n"
280 "Examples: USB => find all symbols containing USB\n"
281 " ^USB => find all symbols starting with USB\n"
282 " USB$ => find all symbols ending with USB\n"
283 "\n";
284
285 static int indent;
286 static struct menu *current_menu;
287 static int child_count;
288 static int single_menu_mode;
289 static int show_all_options;
290 static int save_and_exit;
291 static int silent;
292 static int jump_key_char;
293
294 static void conf(struct menu *menu, struct menu *active_menu);
295
296 static char filename[PATH_MAX+1];
297 static void set_config_filename(const char *config_filename)
298 {
299 static char menu_backtitle[PATH_MAX+128];
300
301 snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
302 config_filename, rootmenu.prompt->text);
303 set_dialog_backtitle(menu_backtitle);
304
305 snprintf(filename, sizeof(filename), "%s", config_filename);
306 }
307
308 struct subtitle_part {
309 struct list_head entries;
310 const char *text;
311 };
312 static LIST_HEAD(trail);
313
314 static struct subtitle_list *subtitles;
315 static void set_subtitle(void)
316 {
317 struct subtitle_part *sp;
318 struct subtitle_list *pos, *tmp;
319
320 for (pos = subtitles; pos != NULL; pos = tmp) {
321 tmp = pos->next;
322 free(pos);
323 }
324
325 subtitles = NULL;
326 list_for_each_entry(sp, &trail, entries) {
327 if (sp->text) {
328 if (pos) {
329 pos->next = xcalloc(1, sizeof(*pos));
330 pos = pos->next;
331 } else {
332 subtitles = pos = xcalloc(1, sizeof(*pos));
333 }
334 pos->text = sp->text;
335 }
336 }
337
338 set_dialog_subtitles(subtitles);
339 }
340
341 static void reset_subtitle(void)
342 {
343 struct subtitle_list *pos, *tmp;
344
345 for (pos = subtitles; pos != NULL; pos = tmp) {
346 tmp = pos->next;
347 free(pos);
348 }
349 subtitles = NULL;
350 set_dialog_subtitles(subtitles);
351 }
352
353 static int show_textbox_ext(const char *title, const char *text, int r, int c,
354 int *vscroll, int *hscroll,
355 int (*extra_key_cb)(int, size_t, size_t, void *),
356 void *data)
357 {
358 dialog_clear();
359 return dialog_textbox(title, text, r, c, vscroll, hscroll,
360 extra_key_cb, data);
361 }
362
363 static void show_textbox(const char *title, const char *text, int r, int c)
364 {
365 show_textbox_ext(title, text, r, c, NULL, NULL, NULL, NULL);
366 }
367
368 static void show_helptext(const char *title, const char *text)
369 {
370 show_textbox(title, text, 0, 0);
371 }
372
373 static void show_help(struct menu *menu)
374 {
375 struct gstr help = str_new();
376
377 help.max_width = getmaxx(stdscr) - 10;
378 menu_get_ext_help(menu, &help);
379
380 show_helptext(menu_get_prompt(menu), str_get(&help));
381 str_free(&help);
382 }
383
384 struct search_data {
385 struct list_head *head;
386 struct menu *target;
387 };
388
389 static int next_jump_key(int key)
390 {
391 if (key < '1' || key > '9')
392 return '1';
393
394 key++;
395
396 if (key > '9')
397 key = '1';
398
399 return key;
400 }
401
402 static int handle_search_keys(int key, size_t start, size_t end, void *_data)
403 {
404 struct search_data *data = _data;
405 struct jump_key *pos;
406 int index = 0;
407
408 if (key < '1' || key > '9')
409 return 0;
410
411 list_for_each_entry(pos, data->head, entries) {
412 index = next_jump_key(index);
413
414 if (pos->offset < start)
415 continue;
416
417 if (pos->offset >= end)
418 break;
419
420 if (key == index) {
421 data->target = pos->target;
422 return 1;
423 }
424 }
425
426 return 0;
427 }
428
429 int get_jump_key_char(void)
430 {
431 jump_key_char = next_jump_key(jump_key_char);
432
433 return jump_key_char;
434 }
435
436 static void search_conf(void)
437 {
438 struct symbol **sym_arr;
439 struct gstr res;
440 struct gstr title;
441 char *dialog_input;
442 int dres, vscroll = 0, hscroll = 0;
443 bool again;
444 struct gstr sttext;
445 struct subtitle_part stpart;
446
447 title = str_new();
448 str_printf( &title, "Enter (sub)string or regexp to search for "
449 "(with or without \"%s\")", CONFIG_);
450
451 again:
452 dialog_clear();
453 dres = dialog_inputbox("Search Configuration Parameter",
454 str_get(&title),
455 10, 75, "");
456 switch (dres) {
457 case 0:
458 break;
459 case 1:
460 show_helptext("Search Configuration", search_help);
461 goto again;
462 default:
463 str_free(&title);
464 return;
465 }
466
467 /* strip the prefix if necessary */
468 dialog_input = dialog_input_result;
469 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
470 dialog_input += strlen(CONFIG_);
471
472 sttext = str_new();
473 str_printf(&sttext, "Search (%s)", dialog_input_result);
474 stpart.text = str_get(&sttext);
475 list_add_tail(&stpart.entries, &trail);
476
477 sym_arr = sym_re_search(dialog_input);
478 do {
479 LIST_HEAD(head);
480 struct search_data data = {
481 .head = &head,
482 };
483 struct jump_key *pos, *tmp;
484
485 jump_key_char = 0;
486 res = get_relations_str(sym_arr, &head);
487 set_subtitle();
488 dres = show_textbox_ext("Search Results", str_get(&res), 0, 0,
489 &vscroll, &hscroll,
490 handle_search_keys, &data);
491 again = false;
492 if (dres >= '1' && dres <= '9') {
493 assert(data.target != NULL);
494 conf(data.target->parent, data.target);
495 again = true;
496 }
497 str_free(&res);
498 list_for_each_entry_safe(pos, tmp, &head, entries)
499 free(pos);
500 } while (again);
501 free(sym_arr);
502 str_free(&title);
503 list_del(trail.prev);
504 str_free(&sttext);
505 }
506
507 static void build_conf(struct menu *menu)
508 {
509 struct symbol *sym;
510 struct property *prop;
511 struct menu *child;
512 int type, tmp, doint = 2;
513 tristate val;
514 char ch;
515 bool visible;
516
517 /*
518 * note: menu_is_visible() has side effect that it will
519 * recalc the value of the symbol.
520 */
521 visible = menu_is_visible(menu);
522 if (show_all_options && !menu_has_prompt(menu))
523 return;
524 else if (!show_all_options && !visible)
525 return;
526
527 sym = menu->sym;
528 prop = menu->prompt;
529 if (!sym) {
530 if (prop && menu != current_menu) {
531 const char *prompt = menu_get_prompt(menu);
532 switch (prop->type) {
533 case P_MENU:
534 child_count++;
535 if (single_menu_mode) {
536 item_make("%s%*c%s",
537 menu->data ? "-->" : "++>",
538 indent + 1, ' ', prompt);
539 } else
540 item_make(" %*c%s %s",
541 indent + 1, ' ', prompt,
542 menu_is_empty(menu) ? "----" : "--->");
543 item_set_tag('m');
544 item_set_data(menu);
545 if (single_menu_mode && menu->data)
546 goto conf_childs;
547 return;
548 case P_COMMENT:
549 if (prompt) {
550 child_count++;
551 item_make(" %*c*** %s ***", indent + 1, ' ', prompt);
552 item_set_tag(':');
553 item_set_data(menu);
554 }
555 break;
556 default:
557 if (prompt) {
558 child_count++;
559 item_make("---%*c%s", indent + 1, ' ', prompt);
560 item_set_tag(':');
561 item_set_data(menu);
562 }
563 }
564 } else
565 doint = 0;
566 goto conf_childs;
567 }
568
569 type = sym_get_type(sym);
570 if (sym_is_choice(sym)) {
571 struct symbol *def_sym = sym_get_choice_value(sym);
572 struct menu *def_menu = NULL;
573
574 child_count++;
575 for (child = menu->list; child; child = child->next) {
576 if (menu_is_visible(child) && child->sym == def_sym)
577 def_menu = child;
578 }
579
580 val = sym_get_tristate_value(sym);
581 if (sym_is_changeable(sym)) {
582 switch (type) {
583 case S_BOOLEAN:
584 item_make("[%c]", val == no ? ' ' : '*');
585 break;
586 case S_TRISTATE:
587 switch (val) {
588 case yes: ch = '*'; break;
589 case mod: ch = 'M'; break;
590 default: ch = ' '; break;
591 }
592 item_make("<%c>", ch);
593 break;
594 }
595 item_set_tag('t');
596 item_set_data(menu);
597 } else {
598 item_make(" ");
599 item_set_tag(def_menu ? 't' : ':');
600 item_set_data(menu);
601 }
602
603 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
604 if (val == yes) {
605 if (def_menu) {
606 item_add_str(" (%s)", menu_get_prompt(def_menu));
607 item_add_str(" --->");
608 if (def_menu->list) {
609 indent += 2;
610 build_conf(def_menu);
611 indent -= 2;
612 }
613 }
614 return;
615 }
616 } else {
617 if (menu == current_menu) {
618 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
619 item_set_tag(':');
620 item_set_data(menu);
621 goto conf_childs;
622 }
623 child_count++;
624 val = sym_get_tristate_value(sym);
625 if (sym_is_choice_value(sym) && val == yes) {
626 item_make(" ");
627 item_set_tag(':');
628 item_set_data(menu);
629 } else {
630 switch (type) {
631 case S_BOOLEAN:
632 if (sym_is_changeable(sym))
633 item_make("[%c]", val == no ? ' ' : '*');
634 else
635 item_make("-%c-", val == no ? ' ' : '*');
636 item_set_tag('t');
637 item_set_data(menu);
638 break;
639 case S_TRISTATE:
640 switch (val) {
641 case yes: ch = '*'; break;
642 case mod: ch = 'M'; break;
643 default: ch = ' '; break;
644 }
645 if (sym_is_changeable(sym)) {
646 if (sym->rev_dep.tri == mod)
647 item_make("{%c}", ch);
648 else
649 item_make("<%c>", ch);
650 } else
651 item_make("-%c-", ch);
652 item_set_tag('t');
653 item_set_data(menu);
654 break;
655 default:
656 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
657 item_make("(%s)", sym_get_string_value(sym));
658 tmp = indent - tmp + 4;
659 if (tmp < 0)
660 tmp = 0;
661 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
662 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
663 "" : " (NEW)");
664 item_set_tag('s');
665 item_set_data(menu);
666 goto conf_childs;
667 }
668 }
669 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
670 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
671 "" : " (NEW)");
672 if (menu->prompt->type == P_MENU) {
673 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
674 return;
675 }
676 }
677
678 conf_childs:
679 indent += doint;
680 for (child = menu->list; child; child = child->next)
681 build_conf(child);
682 indent -= doint;
683 }
684
685 static void conf_choice(struct menu *menu)
686 {
687 const char *prompt = menu_get_prompt(menu);
688 struct menu *child;
689 struct symbol *active;
690 struct property *prop;
691
692 active = sym_get_choice_value(menu->sym);
693 while (1) {
694 int res;
695 int selected;
696 item_reset();
697
698 current_menu = menu;
699 for (child = menu->list; child; child = child->next) {
700 if (!menu_is_visible(child))
701 continue;
702 if (child->sym)
703 item_make("%s", menu_get_prompt(child));
704 else {
705 item_make("*** %s ***", menu_get_prompt(child));
706 item_set_tag(':');
707 }
708 item_set_data(child);
709 if (child->sym == active)
710 item_set_selected(1);
711 if (child->sym == sym_get_choice_value(menu->sym))
712 item_set_tag('X');
713 }
714 dialog_clear();
715 res = dialog_checklist(prompt ? prompt : "Main Menu",
716 radiolist_instructions,
717 MENUBOX_HEIGTH_MIN,
718 MENUBOX_WIDTH_MIN,
719 CHECKLIST_HEIGTH_MIN);
720 selected = item_activate_selected();
721 switch (res) {
722 case 0:
723 if (selected) {
724 child = item_data();
725 if (!child->sym)
726 break;
727
728 if (sym_get_tristate_value(child->sym) != yes) {
729 for_all_properties(menu->sym, prop, P_RESET) {
730 if (expr_calc_value(prop->visible.expr) == no)
731 continue;
732
733 conf_reset(S_DEF_USER);
734 break;
735 }
736 }
737 sym_set_tristate_value(child->sym, yes);
738 }
739 return;
740 case 1:
741 if (selected) {
742 child = item_data();
743 show_help(child);
744 active = child->sym;
745 } else
746 show_help(menu);
747 break;
748 case KEY_ESC:
749 return;
750 case -ERRDISPLAYTOOSMALL:
751 return;
752 }
753 }
754 }
755
756 static void conf_string(struct menu *menu)
757 {
758 const char *prompt = menu_get_prompt(menu);
759
760 while (1) {
761 int res;
762 const char *heading;
763
764 switch (sym_get_type(menu->sym)) {
765 case S_INT:
766 heading = inputbox_instructions_int;
767 break;
768 case S_HEX:
769 heading = inputbox_instructions_hex;
770 break;
771 case S_STRING:
772 heading = inputbox_instructions_string;
773 break;
774 default:
775 heading = "Internal mconf error!";
776 }
777 dialog_clear();
778 res = dialog_inputbox(prompt ? prompt : "Main Menu",
779 heading, 10, 75,
780 sym_get_string_value(menu->sym));
781 switch (res) {
782 case 0:
783 if (sym_set_string_value(menu->sym, dialog_input_result))
784 return;
785 show_textbox(NULL, "You have made an invalid entry.", 5, 43);
786 break;
787 case 1:
788 show_help(menu);
789 break;
790 case KEY_ESC:
791 return;
792 }
793 }
794 }
795
796 static void conf_load(void)
797 {
798
799 while (1) {
800 int res;
801 dialog_clear();
802 res = dialog_inputbox(NULL, load_config_text,
803 11, 55, filename);
804 switch(res) {
805 case 0:
806 if (!dialog_input_result[0])
807 return;
808 if (!conf_read(dialog_input_result)) {
809 set_config_filename(dialog_input_result);
810 conf_set_changed(true);
811 return;
812 }
813 show_textbox(NULL, "File does not exist!", 5, 38);
814 break;
815 case 1:
816 show_helptext("Load Alternate Configuration", load_config_help);
817 break;
818 case KEY_ESC:
819 return;
820 }
821 }
822 }
823
824 static void conf_save(void)
825 {
826 while (1) {
827 int res;
828 dialog_clear();
829 res = dialog_inputbox(NULL, save_config_text,
830 11, 55, filename);
831 switch(res) {
832 case 0:
833 if (!dialog_input_result[0])
834 return;
835 if (!conf_write(dialog_input_result)) {
836 set_config_filename(dialog_input_result);
837 return;
838 }
839 show_textbox(NULL, "Can't create file!", 5, 60);
840 break;
841 case 1:
842 show_helptext("Save Alternate Configuration", save_config_help);
843 break;
844 case KEY_ESC:
845 return;
846 }
847 }
848 }
849
850 static void conf(struct menu *menu, struct menu *active_menu)
851 {
852 struct menu *submenu;
853 const char *prompt = menu_get_prompt(menu);
854 struct subtitle_part stpart;
855 struct symbol *sym;
856 int res;
857 int s_scroll = 0;
858
859 if (menu != &rootmenu)
860 stpart.text = menu_get_prompt(menu);
861 else
862 stpart.text = NULL;
863 list_add_tail(&stpart.entries, &trail);
864
865 while (1) {
866 item_reset();
867 current_menu = menu;
868 build_conf(menu);
869 if (!child_count)
870 break;
871 set_subtitle();
872 dialog_clear();
873 res = dialog_menu(prompt ? prompt : "Main Menu",
874 menu_instructions,
875 active_menu, &s_scroll);
876 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
877 break;
878 if (item_count() != 0) {
879 if (!item_activate_selected())
880 continue;
881 if (!item_tag())
882 continue;
883 }
884 submenu = item_data();
885 active_menu = item_data();
886 if (submenu)
887 sym = submenu->sym;
888 else
889 sym = NULL;
890
891 switch (res) {
892 case 0:
893 switch (item_tag()) {
894 case 'm':
895 if (single_menu_mode)
896 submenu->data = (void *) (long) !submenu->data;
897 else
898 conf(submenu, NULL);
899 break;
900 case 't':
901 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
902 conf_choice(submenu);
903 else if (submenu->prompt->type == P_MENU)
904 conf(submenu, NULL);
905 break;
906 case 's':
907 conf_string(submenu);
908 break;
909 }
910 break;
911 case 2:
912 if (sym)
913 show_help(submenu);
914 else {
915 reset_subtitle();
916 show_helptext("README", mconf_readme);
917 }
918 break;
919 case 3:
920 reset_subtitle();
921 conf_save();
922 break;
923 case 4:
924 reset_subtitle();
925 conf_load();
926 break;
927 case 5:
928 if (item_is_tag('t')) {
929 if (sym_set_tristate_value(sym, yes))
930 break;
931 if (sym_set_tristate_value(sym, mod))
932 show_textbox(NULL, setmod_text, 6, 74);
933 }
934 break;
935 case 6:
936 if (item_is_tag('t'))
937 sym_set_tristate_value(sym, no);
938 break;
939 case 7:
940 if (item_is_tag('t'))
941 sym_set_tristate_value(sym, mod);
942 break;
943 case 8:
944 if (item_is_tag('t'))
945 sym_toggle_tristate_value(sym);
946 else if (item_is_tag('m'))
947 conf(submenu, NULL);
948 break;
949 case 9:
950 search_conf();
951 break;
952 case 10:
953 show_all_options = !show_all_options;
954 break;
955 }
956 }
957
958 list_del(trail.prev);
959 }
960
961 static void conf_message_callback(const char *s)
962 {
963 if (save_and_exit) {
964 if (!silent)
965 printf("%s", s);
966 } else {
967 show_textbox(NULL, s, 6, 60);
968 }
969 }
970
971 static int handle_exit(void)
972 {
973 int res;
974
975 save_and_exit = 1;
976 reset_subtitle();
977 dialog_clear();
978 if (conf_get_changed())
979 res = dialog_yesno(NULL,
980 "Do you wish to save your new configuration?\n"
981 "(Press <ESC><ESC> to continue kernel configuration.)",
982 6, 60);
983 else
984 res = -1;
985
986 end_dialog(saved_x, saved_y);
987
988 switch (res) {
989 case 0:
990 if (conf_write(filename)) {
991 fprintf(stderr, "\n\n"
992 "Error while writing of the configuration.\n"
993 "Your configuration changes were NOT saved."
994 "\n\n");
995 return 1;
996 }
997 conf_write_autoconf(0);
998 /* fall through */
999 case -1:
1000 if (!silent)
1001 printf("\n\n"
1002 "*** End of the configuration.\n"
1003 "*** Execute 'make' to start the build or try 'make help'."
1004 "\n\n");
1005 res = 0;
1006 break;
1007 default:
1008 if (!silent)
1009 fprintf(stderr, "\n\n"
1010 "Your configuration changes were NOT saved."
1011 "\n\n");
1012 if (res != KEY_ESC)
1013 res = 0;
1014 }
1015
1016 return res;
1017 }
1018
1019 static void sig_handler(int signo)
1020 {
1021 exit(handle_exit());
1022 }
1023
1024 int main(int ac, char **av)
1025 {
1026 char *mode;
1027 int res;
1028
1029 signal(SIGINT, sig_handler);
1030
1031 if (ac > 1 && strcmp(av[1], "-s") == 0) {
1032 silent = 1;
1033 /* Silence conf_read() until the real callback is set up */
1034 conf_set_message_callback(NULL);
1035 av++;
1036 }
1037 conf_parse(av[1]);
1038 conf_read(NULL);
1039
1040 mode = getenv("MENUCONFIG_MODE");
1041 if (mode) {
1042 if (!strcasecmp(mode, "single_menu"))
1043 single_menu_mode = 1;
1044 }
1045
1046 if (init_dialog(NULL)) {
1047 fprintf(stderr, "Your display is too small to run Menuconfig!\n");
1048 fprintf(stderr, "It must be at least 19 lines by 80 columns.\n");
1049 return 1;
1050 }
1051
1052 set_config_filename(conf_get_configname());
1053 conf_set_message_callback(conf_message_callback);
1054 do {
1055 conf(&rootmenu, NULL);
1056 res = handle_exit();
1057 } while (res == KEY_ESC);
1058
1059 return res;
1060 }
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