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