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