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