961c1cd4571c9dcc87a591210f7d2b0d572b50ed
[openwrt/staging/mkresin.git] / scripts / config / mconf.c
1 /*
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
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 <signal.h>
19 #include <unistd.h>
20 #include <locale.h>
21
22 #include "lkc.h"
23 #include "lxdialog/dialog.h"
24
25 static const char mconf_readme[] = N_(
26 "Overview\n"
27 "--------\n"
28 "Some OpenWrt features may be built directly into the image.\n"
29 "Some may be made into installable ipkg packages. Some features\n"
30 "may be completely removed altogether.\n"
31 "\n"
32 "Menu items beginning with [*], <M> or [ ] represent features\n"
33 "configured to be included, built as package or removed respectively.\n"
34 "Pointed brackets <> represent packaging capable features.\n"
35 "\n"
36 "To change any of these features, highlight it with the cursor\n"
37 "keys and press <Y> to build it in, <M> to make it a module or\n"
38 "<N> to remove it. You may also press the <Space Bar> to cycle\n"
39 "through the available options (i.e. Y->N->M->Y).\n"
40 "\n"
41 "Some additional keyboard hints:\n"
42 "\n"
43 "Menus\n"
44 "----------\n"
45 "o Use the Up/Down arrow keys (cursor keys) to highlight the item you\n"
46 " wish to change or the submenu you wish to select and press <Enter>.\n"
47 " Submenus are designated by \"--->\", empty ones by \"----\".\n"
48 "\n"
49 " Shortcut: Press the option's highlighted letter (hotkey).\n"
50 " Pressing a hotkey more than once will sequence\n"
51 " through all visible items which use that hotkey.\n"
52 "\n"
53 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
54 " unseen options into view.\n"
55 "\n"
56 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
57 " and press <ENTER>.\n"
58 "\n"
59 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
60 " using those letters. You may press a single <ESC>, but\n"
61 " there is a delayed response which you may find annoying.\n"
62 "\n"
63 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
64 " <Exit>, <Help>, <Save>, and <Load>.\n"
65 "\n"
66 "o To get help with an item, use the cursor keys to highlight <Help>\n"
67 " and press <ENTER>.\n"
68 "\n"
69 " Shortcut: Press <H> or <?>.\n"
70 "\n"
71 "o To toggle the display of hidden options, press <Z>.\n"
72 "\n"
73 "\n"
74 "Radiolists (Choice lists)\n"
75 "-----------\n"
76 "o Use the cursor keys to select the option you wish to set and press\n"
77 " <S> or the <SPACE BAR>.\n"
78 "\n"
79 " Shortcut: Press the first letter of the option you wish to set then\n"
80 " press <S> or <SPACE BAR>.\n"
81 "\n"
82 "o To see available help for the item, use the cursor keys to highlight\n"
83 " <Help> and Press <ENTER>.\n"
84 "\n"
85 " Shortcut: Press <H> or <?>.\n"
86 "\n"
87 " Also, the <TAB> and cursor keys will cycle between <Select> and\n"
88 " <Help>\n"
89 "\n"
90 "\n"
91 "Data Entry\n"
92 "-----------\n"
93 "o Enter the requested information and press <ENTER>\n"
94 " If you are entering hexadecimal values, it is not necessary to\n"
95 " add the '0x' prefix to the entry.\n"
96 "\n"
97 "o For help, use the <TAB> or cursor keys to highlight the help option\n"
98 " and press <ENTER>. You can try <TAB><H> as well.\n"
99 "\n"
100 "\n"
101 "Text Box (Help Window)\n"
102 "--------\n"
103 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
104 " keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n"
105 " those who are familiar with less and lynx.\n"
106 "\n"
107 "o Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
108 "\n"
109 "\n"
110 "Alternate Configuration Files\n"
111 "-----------------------------\n"
112 "Menuconfig supports the use of alternate configuration files for\n"
113 "those who, for various reasons, find it necessary to switch\n"
114 "between different configurations.\n"
115 "\n"
116 "The <Save> button will let you save the current configuration to\n"
117 "a file of your choosing. Use the <Load> button to load a previously\n"
118 "saved alternate configuration.\n"
119 "\n"
120 "Even if you don't use alternate configuration files, but you find\n"
121 "during a Menuconfig session that you have completely messed up your\n"
122 "settings, you may use the <Load> button to restore your previously\n"
123 "saved settings from \".config\" without restarting Menuconfig.\n"
124 "\n"
125 "Other information\n"
126 "-----------------\n"
127 "If you use Menuconfig in an XTERM window, make sure you have your\n"
128 "$TERM variable set to point to an xterm definition which supports\n"
129 "color. Otherwise, Menuconfig will look rather bad. Menuconfig will\n"
130 "not display correctly in an RXVT window because rxvt displays only one\n"
131 "intensity of color, bright.\n"
132 "\n"
133 "Menuconfig will display larger menus on screens or xterms which are\n"
134 "set to display more than the standard 25 row by 80 column geometry.\n"
135 "In order for this to work, the \"stty size\" command must be able to\n"
136 "display the screen's current row and column geometry. I STRONGLY\n"
137 "RECOMMEND that you make sure you do NOT have the shell variables\n"
138 "LINES and COLUMNS exported into your environment. Some distributions\n"
139 "export those variables via /etc/profile. Some ncurses programs can\n"
140 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
141 "the true screen size.\n"
142 "\n"
143 "Optional personality available\n"
144 "------------------------------\n"
145 "If you prefer to have all of the options listed in a single menu,\n"
146 "rather than the default multimenu hierarchy, run the menuconfig with\n"
147 "MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
148 "\n"
149 "make MENUCONFIG_MODE=single_menu menuconfig\n"
150 "\n"
151 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
152 "is already unrolled.\n"
153 "\n"
154 "Note that this mode can eventually be a little more CPU expensive\n"
155 "(especially with a larger number of unrolled categories) than the\n"
156 "default mode.\n"
157 "\n"
158 "Different color themes available\n"
159 "--------------------------------\n"
160 "It is possible to select different color themes using the variable\n"
161 "MENUCONFIG_COLOR. To select a theme use:\n"
162 "\n"
163 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
164 "\n"
165 "Available themes are\n"
166 " mono => selects colors suitable for monochrome displays\n"
167 " blackbg => selects a color scheme with black background\n"
168 " classic => theme with blue background. The classic look\n"
169 " bluetitle => an LCD friendly version of classic. (default)\n"
170 "\n"),
171 menu_instructions[] = N_(
172 "Arrow keys navigate the menu. "
173 "<Enter> selects submenus ---> (or empty submenus ----). "
174 "Highlighted letters are hotkeys. "
175 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
176 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
177 "Legend: [*] built-in [ ] excluded <M> module < > module capable"),
178 radiolist_instructions[] = N_(
179 "Use the arrow keys to navigate this window or "
180 "press the hotkey of the item you wish to select "
181 "followed by the <SPACE BAR>. "
182 "Press <?> for additional information about this option."),
183 inputbox_instructions_int[] = N_(
184 "Please enter a decimal value. "
185 "Fractions will not be accepted. "
186 "Use the <TAB> key to move from the input field to the buttons below it."),
187 inputbox_instructions_hex[] = N_(
188 "Please enter a hexadecimal value. "
189 "Use the <TAB> key to move from the input field to the buttons below it."),
190 inputbox_instructions_string[] = N_(
191 "Please enter a string value. "
192 "Use the <TAB> key to move from the input field to the buttons below it."),
193 setmod_text[] = N_(
194 "This feature depends on another which has been configured as a module.\n"
195 "As a result, this feature will be built as a module."),
196 load_config_text[] = N_(
197 "Enter the name of the configuration file you wish to load. "
198 "Accept the name shown to restore the configuration you "
199 "last retrieved. Leave blank to abort."),
200 load_config_help[] = N_(
201 "\n"
202 "For various reasons, one may wish to keep several different\n"
203 "configurations available on a single machine.\n"
204 "\n"
205 "If you have saved a previous configuration in a file other than the\n"
206 "default one, entering its name here will allow you to modify that\n"
207 "configuration.\n"
208 "\n"
209 "If you are uncertain, then you have probably never used alternate\n"
210 "configuration files. You should therefore leave this blank to abort.\n"),
211 save_config_text[] = N_(
212 "Enter a filename to which this configuration should be saved "
213 "as an alternate. Leave blank to abort."),
214 save_config_help[] = N_(
215 "\n"
216 "For various reasons, one may wish to keep different configurations\n"
217 "available on a single machine.\n"
218 "\n"
219 "Entering a file name here will allow you to later retrieve, modify\n"
220 "and use the current configuration as an alternate to whatever\n"
221 "configuration options you have selected at that time.\n"
222 "\n"
223 "If you are uncertain what all this means then you should probably\n"
224 "leave this blank.\n"),
225 search_help[] = N_(
226 "\n"
227 "Search for symbols and display their relations.\n"
228 "Regular expressions are allowed.\n"
229 "Example: search for \"^FOO\"\n"
230 "Result:\n"
231 "-----------------------------------------------------------------\n"
232 "Symbol: FOO [=m]\n"
233 "Type : tristate\n"
234 "Prompt: Foo bus is used to drive the bar HW\n"
235 " Location:\n"
236 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
237 " -> PCI support (PCI [=y])\n"
238 "(1) -> PCI access mode (<choice> [=y])\n"
239 " Defined at drivers/pci/Kconfig:47\n"
240 " Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
241 " Selects: LIBCRC32\n"
242 " Selected by: BAR [=n]\n"
243 "-----------------------------------------------------------------\n"
244 "o The line 'Type:' shows the type of the configuration option for\n"
245 " this symbol (boolean, tristate, string, ...)\n"
246 "o The line 'Prompt:' shows the text used in the menu structure for\n"
247 " this symbol\n"
248 "o The 'Defined at' line tells at what file / line number the symbol\n"
249 " is defined\n"
250 "o The 'Depends on:' line tells what symbols need to be defined for\n"
251 " this symbol to be visible in the menu (selectable)\n"
252 "o The 'Location:' lines tells where in the menu structure this symbol\n"
253 " is located\n"
254 " A location followed by a [=y] indicates that this is a\n"
255 " selectable menu item - and the current value is displayed inside\n"
256 " brackets.\n"
257 " Press the key in the (#) prefix to jump directly to that\n"
258 " location. You will be returned to the current search results\n"
259 " after exiting this new menu.\n"
260 "o The 'Selects:' line tells what symbols will be automatically\n"
261 " selected if this symbol is selected (y or m)\n"
262 "o The 'Selected by' line tells what symbol has selected this symbol\n"
263 "\n"
264 "Only relevant lines are shown.\n"
265 "\n\n"
266 "Search examples:\n"
267 "Examples: USB => find all symbols containing USB\n"
268 " ^USB => find all symbols starting with USB\n"
269 " USB$ => find all symbols ending with USB\n"
270 "\n");
271
272 static int indent;
273 static struct menu *current_menu;
274 static int child_count;
275 static int single_menu_mode;
276 static int show_all_options;
277 static int save_and_exit;
278
279 static void conf(struct menu *menu, struct menu *active_menu);
280 static void conf_choice(struct menu *menu);
281 static void conf_string(struct menu *menu);
282 static void conf_load(void);
283 static void conf_save(void);
284 static int show_textbox_ext(const char *title, char *text, int r, int c,
285 int *keys, int *vscroll, int *hscroll,
286 update_text_fn update_text, void *data);
287 static void show_textbox(const char *title, const char *text, int r, int c);
288 static void show_helptext(const char *title, const char *text);
289 static void show_help(struct menu *menu);
290
291 static char filename[PATH_MAX+1];
292 static void set_config_filename(const char *config_filename)
293 {
294 static char menu_backtitle[PATH_MAX+128];
295 int size;
296
297 size = snprintf(menu_backtitle, sizeof(menu_backtitle),
298 "%s - %s", config_filename, rootmenu.prompt->text);
299 if (size >= sizeof(menu_backtitle))
300 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
301 set_dialog_backtitle(menu_backtitle);
302
303 size = snprintf(filename, sizeof(filename), "%s", config_filename);
304 if (size >= sizeof(filename))
305 filename[sizeof(filename)-1] = '\0';
306 }
307
308 struct subtitle_part {
309 struct list_head entries;
310 const char *text;
311 };
312 static LIST_HEAD(trail);
313
314 static struct subtitle_list *subtitles;
315 static void set_subtitle(void)
316 {
317 struct subtitle_part *sp;
318 struct subtitle_list *pos, *tmp;
319
320 for (pos = subtitles; pos != NULL; pos = tmp) {
321 tmp = pos->next;
322 free(pos);
323 }
324
325 subtitles = NULL;
326 list_for_each_entry(sp, &trail, entries) {
327 if (sp->text) {
328 if (pos) {
329 pos->next = xcalloc(1, sizeof(*pos));
330 pos = pos->next;
331 } else {
332 subtitles = pos = xcalloc(1, sizeof(*pos));
333 }
334 pos->text = sp->text;
335 }
336 }
337
338 set_dialog_subtitles(subtitles);
339 }
340
341 static void reset_subtitle(void)
342 {
343 struct subtitle_list *pos, *tmp;
344
345 for (pos = subtitles; pos != NULL; pos = tmp) {
346 tmp = pos->next;
347 free(pos);
348 }
349 subtitles = NULL;
350 set_dialog_subtitles(subtitles);
351 }
352
353 struct search_data {
354 struct list_head *head;
355 struct menu **targets;
356 int *keys;
357 };
358
359 static void update_text(char *buf, size_t start, size_t end, void *_data)
360 {
361 struct search_data *data = _data;
362 struct jump_key *pos;
363 int k = 0;
364
365 list_for_each_entry(pos, data->head, entries) {
366 if (pos->offset >= start && pos->offset < end) {
367 char header[4];
368
369 if (k < JUMP_NB) {
370 int key = '0' + (pos->index % JUMP_NB) + 1;
371
372 sprintf(header, "(%c)", key);
373 data->keys[k] = key;
374 data->targets[k] = pos->target;
375 k++;
376 } else {
377 sprintf(header, " ");
378 }
379
380 memcpy(buf + pos->offset, header, sizeof(header) - 1);
381 }
382 }
383 data->keys[k] = 0;
384 }
385
386 static void search_conf(void)
387 {
388 struct symbol **sym_arr;
389 struct gstr res;
390 struct gstr title;
391 char *dialog_input;
392 int dres, vscroll = 0, hscroll = 0;
393 bool again;
394 struct gstr sttext;
395 struct subtitle_part stpart;
396
397 title = str_new();
398 str_printf( &title, _("Enter (sub)string or regexp to search for "
399 "(with or without \"%s\")"), CONFIG_);
400
401 again:
402 dialog_clear();
403 dres = dialog_inputbox(_("Search Configuration Parameter"),
404 str_get(&title),
405 10, 75, "");
406 switch (dres) {
407 case 0:
408 break;
409 case 1:
410 show_helptext(_("Search Configuration"), search_help);
411 goto again;
412 default:
413 str_free(&title);
414 return;
415 }
416
417 /* strip the prefix if necessary */
418 dialog_input = dialog_input_result;
419 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
420 dialog_input += strlen(CONFIG_);
421
422 sttext = str_new();
423 str_printf(&sttext, "Search (%s)", dialog_input_result);
424 stpart.text = str_get(&sttext);
425 list_add_tail(&stpart.entries, &trail);
426
427 sym_arr = sym_re_search(dialog_input);
428 do {
429 LIST_HEAD(head);
430 struct menu *targets[JUMP_NB];
431 int keys[JUMP_NB + 1], i;
432 struct search_data data = {
433 .head = &head,
434 .targets = targets,
435 .keys = keys,
436 };
437 struct jump_key *pos, *tmp;
438
439 res = get_relations_str(sym_arr, &head);
440 set_subtitle();
441 dres = show_textbox_ext(_("Search Results"), (char *)
442 str_get(&res), 0, 0, keys, &vscroll,
443 &hscroll, &update_text, (void *)
444 &data);
445 again = false;
446 for (i = 0; i < JUMP_NB && keys[i]; i++)
447 if (dres == keys[i]) {
448 conf(targets[i]->parent, targets[i]);
449 again = true;
450 }
451 str_free(&res);
452 list_for_each_entry_safe(pos, tmp, &head, entries)
453 free(pos);
454 } while (again);
455 free(sym_arr);
456 str_free(&title);
457 list_del(trail.prev);
458 str_free(&sttext);
459 }
460
461 static void build_conf(struct menu *menu)
462 {
463 struct symbol *sym;
464 struct property *prop;
465 struct menu *child;
466 int type, tmp, doint = 2;
467 tristate val;
468 char ch;
469 bool visible;
470
471 /*
472 * note: menu_is_visible() has side effect that it will
473 * recalc the value of the symbol.
474 */
475 visible = menu_is_visible(menu);
476 if (show_all_options && !menu_has_prompt(menu))
477 return;
478 else if (!show_all_options && !visible)
479 return;
480
481 sym = menu->sym;
482 prop = menu->prompt;
483 if (!sym) {
484 if (prop && menu != current_menu) {
485 const char *prompt = menu_get_prompt(menu);
486 switch (prop->type) {
487 case P_MENU:
488 child_count++;
489 prompt = _(prompt);
490 if (single_menu_mode) {
491 item_make("%s%*c%s",
492 menu->data ? "-->" : "++>",
493 indent + 1, ' ', prompt);
494 } else
495 item_make(" %*c%s %s",
496 indent + 1, ' ', prompt,
497 menu_is_empty(menu) ? "----" : "--->");
498 item_set_tag('m');
499 item_set_data(menu);
500 if (single_menu_mode && menu->data)
501 goto conf_childs;
502 return;
503 case P_COMMENT:
504 if (prompt) {
505 child_count++;
506 item_make(" %*c*** %s ***", indent + 1, ' ', _(prompt));
507 item_set_tag(':');
508 item_set_data(menu);
509 }
510 break;
511 default:
512 if (prompt) {
513 child_count++;
514 item_make("---%*c%s", indent + 1, ' ', _(prompt));
515 item_set_tag(':');
516 item_set_data(menu);
517 }
518 }
519 } else
520 doint = 0;
521 goto conf_childs;
522 }
523
524 type = sym_get_type(sym);
525 if (sym_is_choice(sym)) {
526 struct symbol *def_sym = sym_get_choice_value(sym);
527 struct menu *def_menu = NULL;
528
529 child_count++;
530 for (child = menu->list; child; child = child->next) {
531 if (menu_is_visible(child) && child->sym == def_sym)
532 def_menu = child;
533 }
534
535 val = sym_get_tristate_value(sym);
536 if (sym_is_changable(sym)) {
537 switch (type) {
538 case S_BOOLEAN:
539 item_make("[%c]", val == no ? ' ' : '*');
540 break;
541 case S_TRISTATE:
542 switch (val) {
543 case yes: ch = '*'; break;
544 case mod: ch = 'M'; break;
545 default: ch = ' '; break;
546 }
547 item_make("<%c>", ch);
548 break;
549 }
550 item_set_tag('t');
551 item_set_data(menu);
552 } else {
553 item_make(" ");
554 item_set_tag(def_menu ? 't' : ':');
555 item_set_data(menu);
556 }
557
558 item_add_str("%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
559 if (val == yes) {
560 if (def_menu) {
561 item_add_str(" (%s)", _(menu_get_prompt(def_menu)));
562 item_add_str(" --->");
563 if (def_menu->list) {
564 indent += 2;
565 build_conf(def_menu);
566 indent -= 2;
567 }
568 }
569 return;
570 }
571 } else {
572 if (menu == current_menu) {
573 item_make("---%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
574 item_set_tag(':');
575 item_set_data(menu);
576 goto conf_childs;
577 }
578 child_count++;
579 val = sym_get_tristate_value(sym);
580 if (sym_is_choice_value(sym) && val == yes) {
581 item_make(" ");
582 item_set_tag(':');
583 item_set_data(menu);
584 } else {
585 switch (type) {
586 case S_BOOLEAN:
587 if (sym_is_changable(sym))
588 item_make("[%c]", val == no ? ' ' : '*');
589 else
590 item_make("-%c-", val == no ? ' ' : '*');
591 item_set_tag('t');
592 item_set_data(menu);
593 break;
594 case S_TRISTATE:
595 switch (val) {
596 case yes: ch = '*'; break;
597 case mod: ch = 'M'; break;
598 default: ch = ' '; break;
599 }
600 if (sym_is_changable(sym)) {
601 if (sym->rev_dep.tri == mod)
602 item_make("{%c}", ch);
603 else
604 item_make("<%c>", ch);
605 } else
606 item_make("-%c-", ch);
607 item_set_tag('t');
608 item_set_data(menu);
609 break;
610 default:
611 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
612 item_make("(%s)", sym_get_string_value(sym));
613 tmp = indent - tmp + 4;
614 if (tmp < 0)
615 tmp = 0;
616 item_add_str("%*c%s%s", tmp, ' ', _(menu_get_prompt(menu)),
617 (sym_has_value(sym) || !sym_is_changable(sym)) ?
618 "" : _(" (NEW)"));
619 item_set_tag('s');
620 item_set_data(menu);
621 goto conf_childs;
622 }
623 }
624 item_add_str("%*c%s%s", indent + 1, ' ', _(menu_get_prompt(menu)),
625 (sym_has_value(sym) || !sym_is_changable(sym)) ?
626 "" : _(" (NEW)"));
627 if (menu->prompt->type == P_MENU) {
628 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
629 return;
630 }
631 }
632
633 conf_childs:
634 indent += doint;
635 for (child = menu->list; child; child = child->next)
636 build_conf(child);
637 indent -= doint;
638 }
639
640 static void conf(struct menu *menu, struct menu *active_menu)
641 {
642 struct menu *submenu;
643 const char *prompt = menu_get_prompt(menu);
644 struct subtitle_part stpart;
645 struct symbol *sym;
646 int res;
647 int s_scroll = 0;
648
649 if (menu != &rootmenu)
650 stpart.text = menu_get_prompt(menu);
651 else
652 stpart.text = NULL;
653 list_add_tail(&stpart.entries, &trail);
654
655 while (1) {
656 item_reset();
657 current_menu = menu;
658 build_conf(menu);
659 if (!child_count)
660 break;
661 set_subtitle();
662 dialog_clear();
663 res = dialog_menu(prompt ? _(prompt) : _("Main Menu"),
664 _(menu_instructions),
665 active_menu, &s_scroll);
666 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
667 break;
668 if (item_count() != 0) {
669 if (!item_activate_selected())
670 continue;
671 if (!item_tag())
672 continue;
673 }
674 submenu = item_data();
675 active_menu = item_data();
676 if (submenu)
677 sym = submenu->sym;
678 else
679 sym = NULL;
680
681 switch (res) {
682 case 0:
683 switch (item_tag()) {
684 case 'm':
685 if (single_menu_mode)
686 submenu->data = (void *) (long) !submenu->data;
687 else
688 conf(submenu, NULL);
689 break;
690 case 't':
691 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
692 conf_choice(submenu);
693 else if (submenu->prompt->type == P_MENU)
694 conf(submenu, NULL);
695 break;
696 case 's':
697 conf_string(submenu);
698 break;
699 }
700 break;
701 case 2:
702 if (sym)
703 show_help(submenu);
704 else {
705 reset_subtitle();
706 show_helptext(_("README"), _(mconf_readme));
707 }
708 break;
709 case 3:
710 reset_subtitle();
711 conf_save();
712 break;
713 case 4:
714 reset_subtitle();
715 conf_load();
716 break;
717 case 5:
718 if (item_is_tag('t')) {
719 if (sym_set_tristate_value(sym, yes))
720 break;
721 if (sym_set_tristate_value(sym, mod))
722 show_textbox(NULL, setmod_text, 6, 74);
723 }
724 break;
725 case 6:
726 if (item_is_tag('t'))
727 sym_set_tristate_value(sym, no);
728 break;
729 case 7:
730 if (item_is_tag('t'))
731 sym_set_tristate_value(sym, mod);
732 break;
733 case 8:
734 if (item_is_tag('t'))
735 sym_toggle_tristate_value(sym);
736 else if (item_is_tag('m'))
737 conf(submenu, NULL);
738 break;
739 case 9:
740 search_conf();
741 break;
742 case 10:
743 show_all_options = !show_all_options;
744 break;
745 }
746 }
747
748 list_del(trail.prev);
749 }
750
751 static int show_textbox_ext(const char *title, char *text, int r, int c, int
752 *keys, int *vscroll, int *hscroll, update_text_fn
753 update_text, void *data)
754 {
755 dialog_clear();
756 return dialog_textbox(title, text, r, c, keys, vscroll, hscroll,
757 update_text, data);
758 }
759
760 static void show_textbox(const char *title, const char *text, int r, int c)
761 {
762 show_textbox_ext(title, (char *) text, r, c, (int []) {0}, NULL, NULL,
763 NULL, NULL);
764 }
765
766 static void show_helptext(const char *title, const char *text)
767 {
768 show_textbox(title, text, 0, 0);
769 }
770
771 static void conf_message_callback(const char *fmt, va_list ap)
772 {
773 char buf[PATH_MAX+1];
774
775 vsnprintf(buf, sizeof(buf), fmt, ap);
776 if (save_and_exit)
777 printf("%s", buf);
778 else
779 show_textbox(NULL, buf, 6, 60);
780 }
781
782 static 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
793 static void conf_choice(struct menu *menu)
794 {
795 const char *prompt = _(menu_get_prompt(menu));
796 struct menu *child;
797 struct symbol *active;
798 struct property *prop;
799
800 active = sym_get_choice_value(menu->sym);
801 while (1) {
802 int res;
803 int selected;
804 item_reset();
805
806 current_menu = menu;
807 for (child = menu->list; child; child = child->next) {
808 if (!menu_is_visible(child))
809 continue;
810 if (child->sym)
811 item_make("%s", _(menu_get_prompt(child)));
812 else {
813 item_make("*** %s ***", _(menu_get_prompt(child)));
814 item_set_tag(':');
815 }
816 item_set_data(child);
817 if (child->sym == active)
818 item_set_selected(1);
819 if (child->sym == sym_get_choice_value(menu->sym))
820 item_set_tag('X');
821 }
822 dialog_clear();
823 res = dialog_checklist(prompt ? _(prompt) : _("Main Menu"),
824 _(radiolist_instructions),
825 MENUBOX_HEIGTH_MIN,
826 MENUBOX_WIDTH_MIN,
827 CHECKLIST_HEIGTH_MIN);
828 selected = item_activate_selected();
829 switch (res) {
830 case 0:
831 if (selected) {
832 child = item_data();
833 if (!child->sym)
834 break;
835
836 if (sym_get_tristate_value(child->sym) != yes) {
837 for_all_properties(menu->sym, prop, P_RESET) {
838 if (expr_calc_value(prop->visible.expr) == no)
839 continue;
840
841 conf_reset(S_DEF_USER);
842 break;
843 }
844 }
845 sym_set_tristate_value(child->sym, yes);
846 }
847 return;
848 case 1:
849 if (selected) {
850 child = item_data();
851 show_help(child);
852 active = child->sym;
853 } else
854 show_help(menu);
855 break;
856 case KEY_ESC:
857 return;
858 case -ERRDISPLAYTOOSMALL:
859 return;
860 }
861 }
862 }
863
864 static void conf_string(struct menu *menu)
865 {
866 const char *prompt = menu_get_prompt(menu);
867
868 while (1) {
869 int res;
870 const char *heading;
871
872 switch (sym_get_type(menu->sym)) {
873 case S_INT:
874 heading = _(inputbox_instructions_int);
875 break;
876 case S_HEX:
877 heading = _(inputbox_instructions_hex);
878 break;
879 case S_STRING:
880 heading = _(inputbox_instructions_string);
881 break;
882 default:
883 heading = _("Internal mconf error!");
884 }
885 dialog_clear();
886 res = dialog_inputbox(prompt ? _(prompt) : _("Main Menu"),
887 heading, 10, 75,
888 sym_get_string_value(menu->sym));
889 switch (res) {
890 case 0:
891 if (sym_set_string_value(menu->sym, dialog_input_result))
892 return;
893 show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
894 break;
895 case 1:
896 show_help(menu);
897 break;
898 case KEY_ESC:
899 return;
900 }
901 }
902 }
903
904 static void conf_load(void)
905 {
906
907 while (1) {
908 int res;
909 dialog_clear();
910 res = dialog_inputbox(NULL, load_config_text,
911 11, 55, filename);
912 switch(res) {
913 case 0:
914 if (!dialog_input_result[0])
915 return;
916 if (!conf_read(dialog_input_result)) {
917 set_config_filename(dialog_input_result);
918 sym_set_change_count(1);
919 return;
920 }
921 show_textbox(NULL, _("File does not exist!"), 5, 38);
922 break;
923 case 1:
924 show_helptext(_("Load Alternate Configuration"), load_config_help);
925 break;
926 case KEY_ESC:
927 return;
928 }
929 }
930 }
931
932 static void conf_save(void)
933 {
934 while (1) {
935 int res;
936 dialog_clear();
937 res = dialog_inputbox(NULL, save_config_text,
938 11, 55, filename);
939 switch(res) {
940 case 0:
941 if (!dialog_input_result[0])
942 return;
943 if (!conf_write(dialog_input_result)) {
944 set_config_filename(dialog_input_result);
945 return;
946 }
947 show_textbox(NULL, _("Can't create file! Probably a nonexistent directory."), 5, 60);
948 break;
949 case 1:
950 show_helptext(_("Save Alternate Configuration"), save_config_help);
951 break;
952 case KEY_ESC:
953 return;
954 }
955 }
956 }
957
958 static int handle_exit(void)
959 {
960 int res;
961
962 save_and_exit = 1;
963 reset_subtitle();
964 dialog_clear();
965 if (conf_get_changed())
966 res = dialog_yesno(NULL,
967 _("Do you wish to save your new configuration?\n"
968 "(Press <ESC><ESC> to continue kernel configuration.)"),
969 6, 60);
970 else
971 res = -1;
972
973 end_dialog(saved_x, saved_y);
974
975 switch (res) {
976 case 0:
977 if (conf_write(filename)) {
978 fprintf(stderr, _("\n\n"
979 "Error while writing of the configuration.\n"
980 "Your configuration changes were NOT saved."
981 "\n\n"));
982 return 1;
983 }
984 /* fall through */
985 case -1:
986 printf(_("\n\n"
987 "*** End of the configuration.\n"
988 "*** Execute 'make' to start the build or try 'make help'."
989 "\n\n"));
990 res = 0;
991 break;
992 default:
993 fprintf(stderr, _("\n\n"
994 "Your configuration changes were NOT saved."
995 "\n\n"));
996 if (res != KEY_ESC)
997 res = 0;
998 }
999
1000 return res;
1001 }
1002
1003 static void sig_handler(int signo)
1004 {
1005 exit(handle_exit());
1006 }
1007
1008 int main(int ac, char **av)
1009 {
1010 char *mode;
1011 int res;
1012
1013 setlocale(LC_ALL, "");
1014 bindtextdomain(PACKAGE, LOCALEDIR);
1015 textdomain(PACKAGE);
1016
1017 signal(SIGINT, sig_handler);
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, N_("Your display is too small to run Menuconfig!\n"));
1030 fprintf(stderr, N_("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 }