1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
4 *
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
7 *
8 * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
9 */
10
11 #include <ctype.h>
12 #include <errno.h>
13 #include <fcntl.h>
14 #include <limits.h>
15 #include <stdarg.h>
16 #include <stdlib.h>
17 #include <string.h>
18 #include <strings.h>
19 #include <signal.h>
20 #include <unistd.h>
21
22 #include "list.h"
23 #include "lkc.h"
24 #include "lxdialog/dialog.h"
25 #include "mnconf-common.h"
26
27 static 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",
183 menu_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",
190 radiolist_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.",
195 inputbox_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.",
199 inputbox_instructions_hex[] =
200 "Please enter a hexadecimal value. "
201 "Use the <TAB> key to move from the input field to the buttons below it.",
202 inputbox_instructions_string[] =
203 "Please enter a string value. "
204 "Use the <TAB> key to move from the input field to the buttons below it.",
205 setmod_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.",
208 load_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.",
212 load_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",
223 save_config_text[] =
224 "Enter a filename to which this configuration should be saved "
225 "as an alternate. Leave blank to abort.",
226 save_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",
237 search_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\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
284 static int indent;
285 static struct menu *current_menu;
286 static int child_count;
287 static int single_menu_mode;
288 static int show_all_options;
289 static int save_and_exit;
290 static int silent;
291
292 static void conf(struct menu *menu, struct menu *active_menu);
293
294 static char filename[PATH_MAX+1];
set_config_filename(const char * config_filename)295 static void set_config_filename(const char *config_filename)
296 {
297 static char menu_backtitle[PATH_MAX+128];
298
299 snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
300 config_filename, rootmenu.prompt->text);
301 set_dialog_backtitle(menu_backtitle);
302
303 snprintf(filename, sizeof(filename), "%s", config_filename);
304 }
305
306 struct subtitle_part {
307 struct list_head entries;
308 const char *text;
309 };
310 static LIST_HEAD(trail);
311
312 static struct subtitle_list *subtitles;
set_subtitle(void)313 static void set_subtitle(void)
314 {
315 struct subtitle_part *sp;
316 struct subtitle_list *pos, *tmp;
317
318 for (pos = subtitles; pos != NULL; pos = tmp) {
319 tmp = pos->next;
320 free(pos);
321 }
322
323 subtitles = NULL;
324 list_for_each_entry(sp, &trail, entries) {
325 if (sp->text) {
326 if (pos) {
327 pos->next = xcalloc(1, sizeof(*pos));
328 pos = pos->next;
329 } else {
330 subtitles = pos = xcalloc(1, sizeof(*pos));
331 }
332 pos->text = sp->text;
333 }
334 }
335
336 set_dialog_subtitles(subtitles);
337 }
338
reset_subtitle(void)339 static void reset_subtitle(void)
340 {
341 struct subtitle_list *pos, *tmp;
342
343 for (pos = subtitles; pos != NULL; pos = tmp) {
344 tmp = pos->next;
345 free(pos);
346 }
347 subtitles = NULL;
348 set_dialog_subtitles(subtitles);
349 }
350
show_textbox_ext(const char * title,const char * text,int r,int c,int * vscroll,int * hscroll,int (* extra_key_cb)(int,size_t,size_t,void *),void * data)351 static int show_textbox_ext(const char *title, const char *text, int r, int c,
352 int *vscroll, int *hscroll,
353 int (*extra_key_cb)(int, size_t, size_t, void *),
354 void *data)
355 {
356 dialog_clear();
357 return dialog_textbox(title, text, r, c, vscroll, hscroll,
358 extra_key_cb, data);
359 }
360
show_textbox(const char * title,const char * text,int r,int c)361 static void show_textbox(const char *title, const char *text, int r, int c)
362 {
363 show_textbox_ext(title, text, r, c, NULL, NULL, NULL, NULL);
364 }
365
show_helptext(const char * title,const char * text)366 static void show_helptext(const char *title, const char *text)
367 {
368 show_textbox(title, text, 0, 0);
369 }
370
show_help(struct menu * menu)371 static void show_help(struct menu *menu)
372 {
373 struct gstr help = str_new();
374
375 help.max_width = getmaxx(stdscr) - 10;
376 menu_get_ext_help(menu, &help);
377
378 show_helptext(menu_get_prompt(menu), str_get(&help));
379 str_free(&help);
380 }
381
search_conf(void)382 static void search_conf(void)
383 {
384 struct symbol **sym_arr;
385 struct gstr res;
386 struct gstr title;
387 char *dialog_input;
388 int dres, vscroll = 0, hscroll = 0;
389 bool again;
390 struct gstr sttext;
391 struct subtitle_part stpart;
392
393 title = str_new();
394 str_printf( &title, "Enter (sub)string or regexp to search for "
395 "(with or without \"%s\")", CONFIG_);
396
397 again:
398 dialog_clear();
399 dres = dialog_inputbox("Search Configuration Parameter",
400 str_get(&title),
401 10, 75, "");
402 switch (dres) {
403 case 0:
404 break;
405 case 1:
406 show_helptext("Search Configuration", search_help);
407 goto again;
408 default:
409 str_free(&title);
410 return;
411 }
412
413 /* strip the prefix if necessary */
414 dialog_input = dialog_input_result;
415 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
416 dialog_input += strlen(CONFIG_);
417
418 sttext = str_new();
419 str_printf(&sttext, "Search (%s)", dialog_input_result);
420 stpart.text = str_get(&sttext);
421 list_add_tail(&stpart.entries, &trail);
422
423 sym_arr = sym_re_search(dialog_input);
424 do {
425 LIST_HEAD(head);
426 struct search_data data = {
427 .head = &head,
428 };
429 struct jump_key *pos, *tmp;
430
431 jump_key_char = 0;
432 res = get_relations_str(sym_arr, &head);
433 set_subtitle();
434 dres = show_textbox_ext("Search Results", str_get(&res), 0, 0,
435 &vscroll, &hscroll,
436 handle_search_keys, &data);
437 again = false;
438 if (dres >= '1' && dres <= '9') {
439 assert(data.target != NULL);
440 conf(data.target->parent, data.target);
441 again = true;
442 }
443 str_free(&res);
444 list_for_each_entry_safe(pos, tmp, &head, entries)
445 free(pos);
446 } while (again);
447 free(sym_arr);
448 str_free(&title);
449 list_del(trail.prev);
450 str_free(&sttext);
451 }
452
build_conf(struct menu * menu)453 static void build_conf(struct menu *menu)
454 {
455 struct symbol *sym;
456 struct property *prop;
457 struct menu *child;
458 int type, tmp, doint = 2;
459 tristate val;
460 char ch;
461 bool visible;
462
463 /*
464 * note: menu_is_visible() has side effect that it will
465 * recalc the value of the symbol.
466 */
467 visible = menu_is_visible(menu);
468 if (show_all_options && !menu_has_prompt(menu))
469 return;
470 else if (!show_all_options && !visible)
471 return;
472
473 sym = menu->sym;
474 prop = menu->prompt;
475 if (!sym) {
476 if (prop && menu != current_menu) {
477 const char *prompt = menu_get_prompt(menu);
478 switch (prop->type) {
479 case P_MENU:
480 child_count++;
481 if (single_menu_mode) {
482 item_make("%s%*c%s",
483 menu->data ? "-->" : "++>",
484 indent + 1, ' ', prompt);
485 } else
486 item_make(" %*c%s %s",
487 indent + 1, ' ', prompt,
488 menu_is_empty(menu) ? "----" : "--->");
489 item_set_tag('m');
490 item_set_data(menu);
491 if (single_menu_mode && menu->data)
492 goto conf_childs;
493 return;
494 case P_COMMENT:
495 if (prompt) {
496 child_count++;
497 item_make(" %*c*** %s ***", indent + 1, ' ', prompt);
498 item_set_tag(':');
499 item_set_data(menu);
500 }
501 break;
502 default:
503 if (prompt) {
504 child_count++;
505 item_make("---%*c%s", indent + 1, ' ', prompt);
506 item_set_tag(':');
507 item_set_data(menu);
508 }
509 }
510 } else
511 doint = 0;
512 goto conf_childs;
513 }
514
515 type = sym_get_type(sym);
516 if (sym_is_choice(sym)) {
517 struct symbol *def_sym = sym_get_choice_value(sym);
518 struct menu *def_menu = NULL;
519
520 child_count++;
521 for (child = menu->list; child; child = child->next) {
522 if (menu_is_visible(child) && child->sym == def_sym)
523 def_menu = child;
524 }
525
526 val = sym_get_tristate_value(sym);
527 if (sym_is_changeable(sym)) {
528 switch (val) {
529 case yes: ch = '*'; break;
530 case mod: ch = 'M'; break;
531 default: ch = ' '; break;
532 }
533 item_make("<%c>", ch);
534 item_set_tag('t');
535 item_set_data(menu);
536 } else {
537 item_make(" ");
538 item_set_tag(def_menu ? 't' : ':');
539 item_set_data(menu);
540 }
541
542 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
543 if (val == yes) {
544 if (def_menu)
545 item_add_str(" (%s) --->", menu_get_prompt(def_menu));
546 return;
547 }
548 } else {
549 if (menu == current_menu) {
550 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
551 item_set_tag(':');
552 item_set_data(menu);
553 goto conf_childs;
554 }
555 child_count++;
556 val = sym_get_tristate_value(sym);
557 switch (type) {
558 case S_BOOLEAN:
559 if (sym_is_changeable(sym))
560 item_make("[%c]", val == no ? ' ' : '*');
561 else
562 item_make("-%c-", val == no ? ' ' : '*');
563 item_set_tag('t');
564 item_set_data(menu);
565 break;
566 case S_TRISTATE:
567 switch (val) {
568 case yes: ch = '*'; break;
569 case mod: ch = 'M'; break;
570 default: ch = ' '; break;
571 }
572 if (sym_is_changeable(sym)) {
573 if (sym->rev_dep.tri == mod)
574 item_make("{%c}", ch);
575 else
576 item_make("<%c>", ch);
577 } else
578 item_make("-%c-", ch);
579 item_set_tag('t');
580 item_set_data(menu);
581 break;
582 default:
583 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
584 item_make("(%s)", sym_get_string_value(sym));
585 tmp = indent - tmp + 4;
586 if (tmp < 0)
587 tmp = 0;
588 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
589 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
590 "" : " (NEW)");
591 item_set_tag('s');
592 item_set_data(menu);
593 goto conf_childs;
594 }
595 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
596 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
597 "" : " (NEW)");
598 if (menu->prompt->type == P_MENU) {
599 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
600 return;
601 }
602 }
603
604 conf_childs:
605 indent += doint;
606 for (child = menu->list; child; child = child->next)
607 build_conf(child);
608 indent -= doint;
609 }
610
conf_choice(struct menu * menu)611 static void conf_choice(struct menu *menu)
612 {
613 const char *prompt = menu_get_prompt(menu);
614 struct menu *child;
615 struct symbol *active;
616
617 active = sym_get_choice_value(menu->sym);
618 while (1) {
619 int res;
620 int selected;
621 item_reset();
622
623 current_menu = menu;
624 for (child = menu->list; child; child = child->next) {
625 if (!menu_is_visible(child))
626 continue;
627 if (child->sym)
628 item_make("%s", menu_get_prompt(child));
629 else {
630 item_make("*** %s ***", menu_get_prompt(child));
631 item_set_tag(':');
632 }
633 item_set_data(child);
634 if (child->sym == active)
635 item_set_selected(1);
636 if (child->sym == sym_get_choice_value(menu->sym))
637 item_set_tag('X');
638 }
639 dialog_clear();
640 res = dialog_checklist(prompt ? prompt : "Main Menu",
641 radiolist_instructions,
642 MENUBOX_HEIGHT_MIN,
643 MENUBOX_WIDTH_MIN,
644 CHECKLIST_HEIGHT_MIN);
645 selected = item_activate_selected();
646 switch (res) {
647 case 0:
648 if (selected) {
649 child = item_data();
650 if (!child->sym)
651 break;
652
653 sym_set_tristate_value(child->sym, yes);
654 }
655 return;
656 case 1:
657 if (selected) {
658 child = item_data();
659 show_help(child);
660 active = child->sym;
661 } else
662 show_help(menu);
663 break;
664 case KEY_ESC:
665 return;
666 case -ERRDISPLAYTOOSMALL:
667 return;
668 }
669 }
670 }
671
conf_string(struct menu * menu)672 static void conf_string(struct menu *menu)
673 {
674 const char *prompt = menu_get_prompt(menu);
675
676 while (1) {
677 int res;
678 const char *heading;
679
680 switch (sym_get_type(menu->sym)) {
681 case S_INT:
682 heading = inputbox_instructions_int;
683 break;
684 case S_HEX:
685 heading = inputbox_instructions_hex;
686 break;
687 case S_STRING:
688 heading = inputbox_instructions_string;
689 break;
690 default:
691 heading = "Internal mconf error!";
692 }
693 dialog_clear();
694 res = dialog_inputbox(prompt ? prompt : "Main Menu",
695 heading, 10, 75,
696 sym_get_string_value(menu->sym));
697 switch (res) {
698 case 0:
699 if (sym_set_string_value(menu->sym, dialog_input_result))
700 return;
701 show_textbox(NULL, "You have made an invalid entry.", 5, 43);
702 break;
703 case 1:
704 show_help(menu);
705 break;
706 case KEY_ESC:
707 return;
708 }
709 }
710 }
711
conf_load(void)712 static void conf_load(void)
713 {
714
715 while (1) {
716 int res;
717 dialog_clear();
718 res = dialog_inputbox(NULL, load_config_text,
719 11, 55, filename);
720 switch(res) {
721 case 0:
722 if (!dialog_input_result[0])
723 return;
724 if (!conf_read(dialog_input_result)) {
725 set_config_filename(dialog_input_result);
726 conf_set_changed(true);
727 return;
728 }
729 show_textbox(NULL, "File does not exist!", 5, 38);
730 break;
731 case 1:
732 show_helptext("Load Alternate Configuration", load_config_help);
733 break;
734 case KEY_ESC:
735 return;
736 }
737 }
738 }
739
conf_save(void)740 static void conf_save(void)
741 {
742 while (1) {
743 int res;
744 dialog_clear();
745 res = dialog_inputbox(NULL, save_config_text,
746 11, 55, filename);
747 switch(res) {
748 case 0:
749 if (!dialog_input_result[0])
750 return;
751 if (!conf_write(dialog_input_result)) {
752 set_config_filename(dialog_input_result);
753 return;
754 }
755 show_textbox(NULL, "Can't create file!", 5, 60);
756 break;
757 case 1:
758 show_helptext("Save Alternate Configuration", save_config_help);
759 break;
760 case KEY_ESC:
761 return;
762 }
763 }
764 }
765
conf(struct menu * menu,struct menu * active_menu)766 static void conf(struct menu *menu, struct menu *active_menu)
767 {
768 struct menu *submenu;
769 const char *prompt = menu_get_prompt(menu);
770 struct subtitle_part stpart;
771 struct symbol *sym;
772 int res;
773 int s_scroll = 0;
774
775 if (menu != &rootmenu)
776 stpart.text = menu_get_prompt(menu);
777 else
778 stpart.text = NULL;
779 list_add_tail(&stpart.entries, &trail);
780
781 while (1) {
782 item_reset();
783 current_menu = menu;
784 build_conf(menu);
785 if (!child_count)
786 break;
787 set_subtitle();
788 dialog_clear();
789 res = dialog_menu(prompt ? prompt : "Main Menu",
790 menu_instructions,
791 active_menu, &s_scroll);
792 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
793 break;
794 if (item_count() != 0) {
795 if (!item_activate_selected())
796 continue;
797 if (!item_tag())
798 continue;
799 }
800 submenu = item_data();
801 active_menu = item_data();
802 if (submenu)
803 sym = submenu->sym;
804 else
805 sym = NULL;
806
807 switch (res) {
808 case 0:
809 switch (item_tag()) {
810 case 'm':
811 if (single_menu_mode)
812 submenu->data = (void *) (long) !submenu->data;
813 else
814 conf(submenu, NULL);
815 break;
816 case 't':
817 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
818 conf_choice(submenu);
819 else if (submenu->prompt->type == P_MENU)
820 conf(submenu, NULL);
821 break;
822 case 's':
823 conf_string(submenu);
824 break;
825 }
826 break;
827 case 2:
828 if (sym)
829 show_help(submenu);
830 else {
831 reset_subtitle();
832 show_helptext("README", mconf_readme);
833 }
834 break;
835 case 3:
836 reset_subtitle();
837 conf_save();
838 break;
839 case 4:
840 reset_subtitle();
841 conf_load();
842 break;
843 case 5:
844 if (item_is_tag('t')) {
845 if (sym_set_tristate_value(sym, yes))
846 break;
847 if (sym_set_tristate_value(sym, mod))
848 show_textbox(NULL, setmod_text, 6, 74);
849 }
850 break;
851 case 6:
852 if (item_is_tag('t'))
853 sym_set_tristate_value(sym, no);
854 break;
855 case 7:
856 if (item_is_tag('t'))
857 sym_set_tristate_value(sym, mod);
858 break;
859 case 8:
860 if (item_is_tag('t'))
861 sym_toggle_tristate_value(sym);
862 else if (item_is_tag('m'))
863 conf(submenu, NULL);
864 break;
865 case 9:
866 search_conf();
867 break;
868 case 10:
869 show_all_options = !show_all_options;
870 break;
871 }
872 }
873
874 list_del(trail.prev);
875 }
876
conf_message_callback(const char * s)877 static void conf_message_callback(const char *s)
878 {
879 if (save_and_exit) {
880 if (!silent)
881 printf("%s", s);
882 } else {
883 show_textbox(NULL, s, 6, 60);
884 }
885 }
886
handle_exit(void)887 static int handle_exit(void)
888 {
889 int res;
890
891 save_and_exit = 1;
892 reset_subtitle();
893 dialog_clear();
894 if (conf_get_changed())
895 res = dialog_yesno(NULL,
896 "Do you wish to save your new configuration?\n"
897 "(Press <ESC><ESC> to continue kernel configuration.)",
898 6, 60);
899 else
900 res = -1;
901
902 end_dialog(saved_x, saved_y);
903
904 switch (res) {
905 case 0:
906 if (conf_write(filename)) {
907 fprintf(stderr, "\n\n"
908 "Error while writing of the configuration.\n"
909 "Your configuration changes were NOT saved."
910 "\n\n");
911 return 1;
912 }
913 conf_write_autoconf(0);
914 /* fall through */
915 case -1:
916 if (!silent)
917 printf("\n\n"
918 "*** End of the configuration.\n"
919 "*** Execute 'make' to start the build or try 'make help'."
920 "\n\n");
921 res = 0;
922 break;
923 default:
924 if (!silent)
925 fprintf(stderr, "\n\n"
926 "Your configuration changes were NOT saved."
927 "\n\n");
928 if (res != KEY_ESC)
929 res = 0;
930 }
931
932 return res;
933 }
934
sig_handler(int signo)935 static void sig_handler(int signo)
936 {
937 exit(handle_exit());
938 }
939
main(int ac,char ** av)940 int main(int ac, char **av)
941 {
942 char *mode;
943 int res;
944
945 signal(SIGINT, sig_handler);
946
947 if (ac > 1 && strcmp(av[1], "-s") == 0) {
948 silent = 1;
949 /* Silence conf_read() until the real callback is set up */
950 conf_set_message_callback(NULL);
951 av++;
952 }
953 conf_parse(av[1]);
954 conf_read(NULL);
955
956 mode = getenv("MENUCONFIG_MODE");
957 if (mode) {
958 if (!strcasecmp(mode, "single_menu"))
959 single_menu_mode = 1;
960 }
961
962 if (init_dialog(NULL)) {
963 fprintf(stderr, "Your display is too small to run Menuconfig!\n");
964 fprintf(stderr, "It must be at least 19 lines by 80 columns.\n");
965 return 1;
966 }
967
968 set_config_filename(conf_get_configname());
969 conf_set_message_callback(conf_message_callback);
970 do {
971 conf(&rootmenu, NULL);
972 res = handle_exit();
973 } while (res == KEY_ESC);
974
975 return res;
976 }
977