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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 <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"Different color themes available\n"
165"--------------------------------\n"
166"It is possible to select different color themes using the variable\n"
167"MENUCONFIG_COLOR. To select a theme use:\n"
168"\n"
169"make MENUCONFIG_COLOR=<theme> menuconfig\n"
170"\n"
171"Available themes are\n"
172" mono => selects colors suitable for monochrome displays\n"
173" blackbg => selects a color scheme with black background\n"
174" classic => theme with blue background. The classic look\n"
175" bluetitle => an LCD friendly version of classic. (default)\n"
176"\n",
177menu_instructions[] =
178 "Arrow keys navigate the menu. "
179 "<Enter> selects submenus ---> (or empty submenus ----). "
180 "Highlighted letters are hotkeys. "
181 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
182 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
183 "Legend: [*] built-in [ ] excluded <M> module < > module capable",
184radiolist_instructions[] =
185 "Use the arrow keys to navigate this window or "
186 "press the hotkey of the item you wish to select "
187 "followed by the <SPACE BAR>. "
188 "Press <?> for additional information about this option.",
189inputbox_instructions_int[] =
190 "Please enter a decimal value. "
191 "Fractions will not be accepted. "
192 "Use the <TAB> key to move from the input field to the buttons below it.",
193inputbox_instructions_hex[] =
194 "Please enter a hexadecimal value. "
195 "Use the <TAB> key to move from the input field to the buttons below it.",
196inputbox_instructions_string[] =
197 "Please enter a string value. "
198 "Use the <TAB> key to move from the input field to the buttons below it.",
199setmod_text[] =
200 "This feature depends on another which has been configured as a module.\n"
201 "As a result, this feature will be built as a module.",
202load_config_text[] =
203 "Enter the name of the configuration file you wish to load. "
204 "Accept the name shown to restore the configuration you "
205 "last retrieved. Leave blank to abort.",
206load_config_help[] =
207 "\n"
208 "For various reasons, one may wish to keep several different\n"
209 "configurations available on a single machine.\n"
210 "\n"
211 "If you have saved a previous configuration in a file other than the\n"
212 "default one, entering its name here will allow you to modify that\n"
213 "configuration.\n"
214 "\n"
215 "If you are uncertain, then you have probably never used alternate\n"
216 "configuration files. You should therefore leave this blank to abort.\n",
217save_config_text[] =
218 "Enter a filename to which this configuration should be saved "
219 "as an alternate. Leave blank to abort.",
220save_config_help[] =
221 "\n"
222 "For various reasons, one may wish to keep different configurations\n"
223 "available on a single machine.\n"
224 "\n"
225 "Entering a file name here will allow you to later retrieve, modify\n"
226 "and use the current configuration as an alternate to whatever\n"
227 "configuration options you have selected at that time.\n"
228 "\n"
229 "If you are uncertain what all this means then you should probably\n"
230 "leave this blank.\n",
231search_help[] =
232 "\n"
233 "Search for symbols and display their relations.\n"
234 "Regular expressions are allowed.\n"
235 "Example: search for \"^FOO\"\n"
236 "Result:\n"
237 "-----------------------------------------------------------------\n"
238 "Symbol: FOO [=m]\n"
239 "Type : tristate\n"
240 "Prompt: Foo bus is used to drive the bar HW\n"
241 " Location:\n"
242 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
243 " -> PCI support (PCI [=y])\n"
244 "(1) -> PCI access mode (<choice> [=y])\n"
245 " Defined at drivers/pci/Kconfig:47\n"
246 " Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
247 " Selects: LIBCRC32\n"
248 " Selected by: BAR [=n]\n"
249 "-----------------------------------------------------------------\n"
250 "o The line 'Type:' shows the type of the configuration option for\n"
251 " this symbol (bool, tristate, string, ...)\n"
252 "o The line 'Prompt:' shows the text used in the menu structure for\n"
253 " this symbol\n"
254 "o The 'Defined at' line tells at what file / line number the symbol\n"
255 " is defined\n"
256 "o The 'Depends on:' line tells what symbols need to be defined for\n"
257 " this symbol to be visible in the menu (selectable)\n"
258 "o The 'Location:' lines tells where in the menu structure this symbol\n"
259 " is located\n"
260 " A location followed by a [=y] indicates that this is a\n"
261 " selectable menu item - and the current value is displayed inside\n"
262 " brackets.\n"
263 " Press the key in the (#) prefix to jump directly to that\n"
264 " location. You will be returned to the current search results\n"
265 " after exiting this new menu.\n"
266 "o The 'Selects:' line tells what symbols will be automatically\n"
267 " selected if this symbol is selected (y or m)\n"
268 "o The 'Selected by' line tells what symbol has selected this symbol\n"
269 "\n"
270 "Only relevant lines are shown.\n"
271 "\n\n"
272 "Search examples:\n"
273 "Examples: USB => find all symbols containing USB\n"
274 " ^USB => find all symbols starting with USB\n"
275 " USB$ => find all symbols ending with USB\n"
276 "\n";
277
278static int indent;
279static struct menu *current_menu;
280static int child_count;
281static int single_menu_mode;
282static int show_all_options;
283static int save_and_exit;
284static int silent;
285
286static void conf(struct menu *menu, struct menu *active_menu);
287static void conf_choice(struct menu *menu);
288static void conf_string(struct menu *menu);
289static void conf_load(void);
290static void conf_save(void);
291static int show_textbox_ext(const char *title, char *text, int r, int c,
292 int *keys, int *vscroll, int *hscroll,
293 update_text_fn update_text, void *data);
294static void show_textbox(const char *title, const char *text, int r, int c);
295static void show_helptext(const char *title, const char *text);
296static void show_help(struct menu *menu);
297
298static char filename[PATH_MAX+1];
299static void set_config_filename(const char *config_filename)
300{
301 static char menu_backtitle[PATH_MAX+128];
302
303 snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
304 config_filename, rootmenu.prompt->text);
305 set_dialog_backtitle(menu_backtitle);
306
307 snprintf(filename, sizeof(filename), "%s", config_filename);
308}
309
310struct subtitle_part {
311 struct list_head entries;
312 const char *text;
313};
314static LIST_HEAD(trail);
315
316static struct subtitle_list *subtitles;
317static void set_subtitle(void)
318{
319 struct subtitle_part *sp;
320 struct subtitle_list *pos, *tmp;
321
322 for (pos = subtitles; pos != NULL; pos = tmp) {
323 tmp = pos->next;
324 free(pos);
325 }
326
327 subtitles = NULL;
328 list_for_each_entry(sp, &trail, entries) {
329 if (sp->text) {
330 if (pos) {
331 pos->next = xcalloc(1, sizeof(*pos));
332 pos = pos->next;
333 } else {
334 subtitles = pos = xcalloc(1, sizeof(*pos));
335 }
336 pos->text = sp->text;
337 }
338 }
339
340 set_dialog_subtitles(subtitles);
341}
342
343static void reset_subtitle(void)
344{
345 struct subtitle_list *pos, *tmp;
346
347 for (pos = subtitles; pos != NULL; pos = tmp) {
348 tmp = pos->next;
349 free(pos);
350 }
351 subtitles = NULL;
352 set_dialog_subtitles(subtitles);
353}
354
355struct search_data {
356 struct list_head *head;
357 struct menu **targets;
358 int *keys;
359};
360
361static void update_text(char *buf, size_t start, size_t end, void *_data)
362{
363 struct search_data *data = _data;
364 struct jump_key *pos;
365 int k = 0;
366
367 list_for_each_entry(pos, data->head, entries) {
368 if (pos->offset >= start && pos->offset < end) {
369 char header[4];
370
371 if (k < JUMP_NB) {
372 int key = '0' + (pos->index % JUMP_NB) + 1;
373
374 sprintf(header, "(%c)", key);
375 data->keys[k] = key;
376 data->targets[k] = pos->target;
377 k++;
378 } else {
379 sprintf(header, " ");
380 }
381
382 memcpy(buf + pos->offset, header, sizeof(header) - 1);
383 }
384 }
385 data->keys[k] = 0;
386}
387
388static void search_conf(void)
389{
390 struct symbol **sym_arr;
391 struct gstr res;
392 struct gstr title;
393 char *dialog_input;
394 int dres, vscroll = 0, hscroll = 0;
395 bool again;
396 struct gstr sttext;
397 struct subtitle_part stpart;
398
399 title = str_new();
400 str_printf( &title, "Enter (sub)string or regexp to search for "
401 "(with or without \"%s\")", CONFIG_);
402
403again:
404 dialog_clear();
405 dres = dialog_inputbox("Search Configuration Parameter",
406 str_get(&title),
407 10, 75, "");
408 switch (dres) {
409 case 0:
410 break;
411 case 1:
412 show_helptext("Search Configuration", search_help);
413 goto again;
414 default:
415 str_free(&title);
416 return;
417 }
418
419
420 dialog_input = dialog_input_result;
421 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
422 dialog_input += strlen(CONFIG_);
423
424 sttext = str_new();
425 str_printf(&sttext, "Search (%s)", dialog_input_result);
426 stpart.text = str_get(&sttext);
427 list_add_tail(&stpart.entries, &trail);
428
429 sym_arr = sym_re_search(dialog_input);
430 do {
431 LIST_HEAD(head);
432 struct menu *targets[JUMP_NB];
433 int keys[JUMP_NB + 1], i;
434 struct search_data data = {
435 .head = &head,
436 .targets = targets,
437 .keys = keys,
438 };
439 struct jump_key *pos, *tmp;
440
441 res = get_relations_str(sym_arr, &head);
442 set_subtitle();
443 dres = show_textbox_ext("Search Results", (char *)
444 str_get(&res), 0, 0, keys, &vscroll,
445 &hscroll, &update_text, (void *)
446 &data);
447 again = false;
448 for (i = 0; i < JUMP_NB && keys[i]; i++)
449 if (dres == keys[i]) {
450 conf(targets[i]->parent, targets[i]);
451 again = true;
452 }
453 str_free(&res);
454 list_for_each_entry_safe(pos, tmp, &head, entries)
455 free(pos);
456 } while (again);
457 free(sym_arr);
458 str_free(&title);
459 list_del(trail.prev);
460 str_free(&sttext);
461}
462
463static void build_conf(struct menu *menu)
464{
465 struct symbol *sym;
466 struct property *prop;
467 struct menu *child;
468 int type, tmp, doint = 2;
469 tristate val;
470 char ch;
471 bool visible;
472
473
474
475
476
477 visible = menu_is_visible(menu);
478 if (show_all_options && !menu_has_prompt(menu))
479 return;
480 else if (!show_all_options && !visible)
481 return;
482
483 sym = menu->sym;
484 prop = menu->prompt;
485 if (!sym) {
486 if (prop && menu != current_menu) {
487 const char *prompt = menu_get_prompt(menu);
488 switch (prop->type) {
489 case P_MENU:
490 child_count++;
491 if (single_menu_mode) {
492 item_make("%s%*c%s",
493 menu->data ? "-->" : "++>",
494 indent + 1, ' ', prompt);
495 } else
496 item_make(" %*c%s %s",
497 indent + 1, ' ', prompt,
498 menu_is_empty(menu) ? "----" : "--->");
499 item_set_tag('m');
500 item_set_data(menu);
501 if (single_menu_mode && menu->data)
502 goto conf_childs;
503 return;
504 case P_COMMENT:
505 if (prompt) {
506 child_count++;
507 item_make(" %*c*** %s ***", indent + 1, ' ', prompt);
508 item_set_tag(':');
509 item_set_data(menu);
510 }
511 break;
512 default:
513 if (prompt) {
514 child_count++;
515 item_make("---%*c%s", indent + 1, ' ', prompt);
516 item_set_tag(':');
517 item_set_data(menu);
518 }
519 }
520 } else
521 doint = 0;
522 goto conf_childs;
523 }
524
525 type = sym_get_type(sym);
526 if (sym_is_choice(sym)) {
527 struct symbol *def_sym = sym_get_choice_value(sym);
528 struct menu *def_menu = NULL;
529
530 child_count++;
531 for (child = menu->list; child; child = child->next) {
532 if (menu_is_visible(child) && child->sym == def_sym)
533 def_menu = child;
534 }
535
536 val = sym_get_tristate_value(sym);
537 if (sym_is_changeable(sym)) {
538 switch (type) {
539 case S_BOOLEAN:
540 item_make("[%c]", val == no ? ' ' : '*');
541 break;
542 case S_TRISTATE:
543 switch (val) {
544 case yes: ch = '*'; break;
545 case mod: ch = 'M'; break;
546 default: ch = ' '; break;
547 }
548 item_make("<%c>", ch);
549 break;
550 }
551 item_set_tag('t');
552 item_set_data(menu);
553 } else {
554 item_make(" ");
555 item_set_tag(def_menu ? 't' : ':');
556 item_set_data(menu);
557 }
558
559 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
560 if (val == yes) {
561 if (def_menu) {
562 item_add_str(" (%s)", menu_get_prompt(def_menu));
563 item_add_str(" --->");
564 if (def_menu->list) {
565 indent += 2;
566 build_conf(def_menu);
567 indent -= 2;
568 }
569 }
570 return;
571 }
572 } else {
573 if (menu == current_menu) {
574 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
575 item_set_tag(':');
576 item_set_data(menu);
577 goto conf_childs;
578 }
579 child_count++;
580 val = sym_get_tristate_value(sym);
581 if (sym_is_choice_value(sym) && val == yes) {
582 item_make(" ");
583 item_set_tag(':');
584 item_set_data(menu);
585 } else {
586 switch (type) {
587 case S_BOOLEAN:
588 if (sym_is_changeable(sym))
589 item_make("[%c]", val == no ? ' ' : '*');
590 else
591 item_make("-%c-", val == no ? ' ' : '*');
592 item_set_tag('t');
593 item_set_data(menu);
594 break;
595 case S_TRISTATE:
596 switch (val) {
597 case yes: ch = '*'; break;
598 case mod: ch = 'M'; break;
599 default: ch = ' '; break;
600 }
601 if (sym_is_changeable(sym)) {
602 if (sym->rev_dep.tri == mod)
603 item_make("{%c}", ch);
604 else
605 item_make("<%c>", ch);
606 } else
607 item_make("-%c-", ch);
608 item_set_tag('t');
609 item_set_data(menu);
610 break;
611 default:
612 tmp = 2 + strlen(sym_get_string_value(sym));
613 item_make("(%s)", sym_get_string_value(sym));
614 tmp = indent - tmp + 4;
615 if (tmp < 0)
616 tmp = 0;
617 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
618 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
619 "" : " (NEW)");
620 item_set_tag('s');
621 item_set_data(menu);
622 goto conf_childs;
623 }
624 }
625 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
626 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
627 "" : " (NEW)");
628 if (menu->prompt->type == P_MENU) {
629 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
630 return;
631 }
632 }
633
634conf_childs:
635 indent += doint;
636 for (child = menu->list; child; child = child->next)
637 build_conf(child);
638 indent -= doint;
639}
640
641static void conf(struct menu *menu, struct menu *active_menu)
642{
643 struct menu *submenu;
644 const char *prompt = menu_get_prompt(menu);
645 struct subtitle_part stpart;
646 struct symbol *sym;
647 int res;
648 int s_scroll = 0;
649
650 if (menu != &rootmenu)
651 stpart.text = menu_get_prompt(menu);
652 else
653 stpart.text = NULL;
654 list_add_tail(&stpart.entries, &trail);
655
656 while (1) {
657 item_reset();
658 current_menu = menu;
659 build_conf(menu);
660 if (!child_count)
661 break;
662 set_subtitle();
663 dialog_clear();
664 res = dialog_menu(prompt ? prompt : "Main Menu",
665 menu_instructions,
666 active_menu, &s_scroll);
667 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
668 break;
669 if (item_count() != 0) {
670 if (!item_activate_selected())
671 continue;
672 if (!item_tag())
673 continue;
674 }
675 submenu = item_data();
676 active_menu = item_data();
677 if (submenu)
678 sym = submenu->sym;
679 else
680 sym = NULL;
681
682 switch (res) {
683 case 0:
684 switch (item_tag()) {
685 case 'm':
686 if (single_menu_mode)
687 submenu->data = (void *) (long) !submenu->data;
688 else
689 conf(submenu, NULL);
690 break;
691 case 't':
692 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
693 conf_choice(submenu);
694 else if (submenu->prompt->type == P_MENU)
695 conf(submenu, NULL);
696 break;
697 case 's':
698 conf_string(submenu);
699 break;
700 }
701 break;
702 case 2:
703 if (sym)
704 show_help(submenu);
705 else {
706 reset_subtitle();
707 show_helptext("README", mconf_readme);
708 }
709 break;
710 case 3:
711 reset_subtitle();
712 conf_save();
713 break;
714 case 4:
715 reset_subtitle();
716 conf_load();
717 break;
718 case 5:
719 if (item_is_tag('t')) {
720 if (sym_set_tristate_value(sym, yes))
721 break;
722 if (sym_set_tristate_value(sym, mod))
723 show_textbox(NULL, setmod_text, 6, 74);
724 }
725 break;
726 case 6:
727 if (item_is_tag('t'))
728 sym_set_tristate_value(sym, no);
729 break;
730 case 7:
731 if (item_is_tag('t'))
732 sym_set_tristate_value(sym, mod);
733 break;
734 case 8:
735 if (item_is_tag('t'))
736 sym_toggle_tristate_value(sym);
737 else if (item_is_tag('m'))
738 conf(submenu, NULL);
739 break;
740 case 9:
741 search_conf();
742 break;
743 case 10:
744 show_all_options = !show_all_options;
745 break;
746 }
747 }
748
749 list_del(trail.prev);
750}
751
752static int show_textbox_ext(const char *title, char *text, int r, int c, int
753 *keys, int *vscroll, int *hscroll, update_text_fn
754 update_text, void *data)
755{
756 dialog_clear();
757 return dialog_textbox(title, text, r, c, keys, vscroll, hscroll,
758 update_text, data);
759}
760
761static void show_textbox(const char *title, const char *text, int r, int c)
762{
763 show_textbox_ext(title, (char *) text, r, c, (int []) {0}, NULL, NULL,
764 NULL, NULL);
765}
766
767static void show_helptext(const char *title, const char *text)
768{
769 show_textbox(title, text, 0, 0);
770}
771
772static void conf_message_callback(const char *s)
773{
774 if (save_and_exit) {
775 if (!silent)
776 printf("%s", s);
777 } else {
778 show_textbox(NULL, s, 6, 60);
779 }
780}
781
782static void show_help(struct menu *menu)
783{
784 struct gstr help = str_new();
785
786 help.max_width = getmaxx(stdscr) - 10;
787 menu_get_ext_help(menu, &help);
788
789 show_helptext(menu_get_prompt(menu), str_get(&help));
790 str_free(&help);
791}
792
793static void conf_choice(struct menu *menu)
794{
795 const char *prompt = menu_get_prompt(menu);
796 struct menu *child;
797 struct symbol *active;
798
799 active = sym_get_choice_value(menu->sym);
800 while (1) {
801 int res;
802 int selected;
803 item_reset();
804
805 current_menu = menu;
806 for (child = menu->list; child; child = child->next) {
807 if (!menu_is_visible(child))
808 continue;
809 if (child->sym)
810 item_make("%s", menu_get_prompt(child));
811 else {
812 item_make("*** %s ***", menu_get_prompt(child));
813 item_set_tag(':');
814 }
815 item_set_data(child);
816 if (child->sym == active)
817 item_set_selected(1);
818 if (child->sym == sym_get_choice_value(menu->sym))
819 item_set_tag('X');
820 }
821 dialog_clear();
822 res = dialog_checklist(prompt ? prompt : "Main Menu",
823 radiolist_instructions,
824 MENUBOX_HEIGTH_MIN,
825 MENUBOX_WIDTH_MIN,
826 CHECKLIST_HEIGTH_MIN);
827 selected = item_activate_selected();
828 switch (res) {
829 case 0:
830 if (selected) {
831 child = item_data();
832 if (!child->sym)
833 break;
834
835 sym_set_tristate_value(child->sym, yes);
836 }
837 return;
838 case 1:
839 if (selected) {
840 child = item_data();
841 show_help(child);
842 active = child->sym;
843 } else
844 show_help(menu);
845 break;
846 case KEY_ESC:
847 return;
848 case -ERRDISPLAYTOOSMALL:
849 return;
850 }
851 }
852}
853
854static void conf_string(struct menu *menu)
855{
856 const char *prompt = menu_get_prompt(menu);
857
858 while (1) {
859 int res;
860 const char *heading;
861
862 switch (sym_get_type(menu->sym)) {
863 case S_INT:
864 heading = inputbox_instructions_int;
865 break;
866 case S_HEX:
867 heading = inputbox_instructions_hex;
868 break;
869 case S_STRING:
870 heading = inputbox_instructions_string;
871 break;
872 default:
873 heading = "Internal mconf error!";
874 }
875 dialog_clear();
876 res = dialog_inputbox(prompt ? prompt : "Main Menu",
877 heading, 10, 75,
878 sym_get_string_value(menu->sym));
879 switch (res) {
880 case 0:
881 if (sym_set_string_value(menu->sym, dialog_input_result))
882 return;
883 show_textbox(NULL, "You have made an invalid entry.", 5, 43);
884 break;
885 case 1:
886 show_help(menu);
887 break;
888 case KEY_ESC:
889 return;
890 }
891 }
892}
893
894static void conf_load(void)
895{
896
897 while (1) {
898 int res;
899 dialog_clear();
900 res = dialog_inputbox(NULL, load_config_text,
901 11, 55, filename);
902 switch(res) {
903 case 0:
904 if (!dialog_input_result[0])
905 return;
906 if (!conf_read(dialog_input_result)) {
907 set_config_filename(dialog_input_result);
908 conf_set_changed(true);
909 return;
910 }
911 show_textbox(NULL, "File does not exist!", 5, 38);
912 break;
913 case 1:
914 show_helptext("Load Alternate Configuration", load_config_help);
915 break;
916 case KEY_ESC:
917 return;
918 }
919 }
920}
921
922static void conf_save(void)
923{
924 while (1) {
925 int res;
926 dialog_clear();
927 res = dialog_inputbox(NULL, save_config_text,
928 11, 55, filename);
929 switch(res) {
930 case 0:
931 if (!dialog_input_result[0])
932 return;
933 if (!conf_write(dialog_input_result)) {
934 set_config_filename(dialog_input_result);
935 return;
936 }
937 show_textbox(NULL, "Can't create file!", 5, 60);
938 break;
939 case 1:
940 show_helptext("Save Alternate Configuration", save_config_help);
941 break;
942 case KEY_ESC:
943 return;
944 }
945 }
946}
947
948static int handle_exit(void)
949{
950 int res;
951
952 save_and_exit = 1;
953 reset_subtitle();
954 dialog_clear();
955 if (conf_get_changed())
956 res = dialog_yesno(NULL,
957 "Do you wish to save your new configuration?\n"
958 "(Press <ESC><ESC> to continue kernel configuration.)",
959 6, 60);
960 else
961 res = -1;
962
963 end_dialog(saved_x, saved_y);
964
965 switch (res) {
966 case 0:
967 if (conf_write(filename)) {
968 fprintf(stderr, "\n\n"
969 "Error while writing of the configuration.\n"
970 "Your configuration changes were NOT saved."
971 "\n\n");
972 return 1;
973 }
974 conf_write_autoconf(0);
975
976 case -1:
977 if (!silent)
978 printf("\n\n"
979 "*** End of the configuration.\n"
980 "*** Execute 'make' to start the build or try 'make help'."
981 "\n\n");
982 res = 0;
983 break;
984 default:
985 if (!silent)
986 fprintf(stderr, "\n\n"
987 "Your configuration changes were NOT saved."
988 "\n\n");
989 if (res != KEY_ESC)
990 res = 0;
991 }
992
993 return res;
994}
995
996static void sig_handler(int signo)
997{
998 exit(handle_exit());
999}
1000
1001int main(int ac, char **av)
1002{
1003 char *mode;
1004 int res;
1005
1006 signal(SIGINT, sig_handler);
1007
1008 if (ac > 1 && strcmp(av[1], "-s") == 0) {
1009 silent = 1;
1010
1011 conf_set_message_callback(NULL);
1012 av++;
1013 }
1014 conf_parse(av[1]);
1015 conf_read(NULL);
1016
1017 mode = getenv("MENUCONFIG_MODE");
1018 if (mode) {
1019 if (!strcasecmp(mode, "single_menu"))
1020 single_menu_mode = 1;
1021 }
1022
1023 if (init_dialog(NULL)) {
1024 fprintf(stderr, "Your display is too small to run Menuconfig!\n");
1025 fprintf(stderr, "It must be at least 19 lines by 80 columns.\n");
1026 return 1;
1027 }
1028
1029 set_config_filename(conf_get_configname());
1030 conf_set_message_callback(conf_message_callback);
1031 do {
1032 conf(&rootmenu, NULL);
1033 res = handle_exit();
1034 } while (res == KEY_ESC);
1035
1036 return res;
1037}
1038
