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 "This interface lets you select features and parameters for the build.\n"
29 "Features can either be built-in, modularized, or ignored. Parameters\n"
30 "must be entered in as decimal or hexadecimal numbers or text.\n"
31 "\n"
32 "Menu items beginning with following braces represent features that\n"
33 "  [ ] can be built in or removed\n"
34 "  < > can be built in, modularized or removed\n"
35 "  { } can be built in or modularized (selected by other feature)\n"
36 "  - - are selected by other feature,\n"
37 "while *, M or whitespace inside braces means to build in, build as\n"
38 "a module or to exclude the feature respectively.\n"
39 "\n"
40 "To change any of these features, highlight it with the cursor\n"
41 "keys and press <Y> to build it in, <M> to make it a module or\n"
42 "<N> to remove it.  You may also press the <Space Bar> to cycle\n"
43 "through the available options (i.e. Y->N->M->Y).\n"
44 "\n"
45 "Some additional keyboard hints:\n"
46 "\n"
47 "Menus\n"
48 "----------\n"
49 "o  Use the Up/Down arrow keys (cursor keys) to highlight the item you\n"
50 "   wish to change or the submenu you wish to select and press <Enter>.\n"
51 "   Submenus are designated by \"--->\", empty ones by \"----\".\n"
52 "\n"
53 "   Shortcut: Press the option's highlighted letter (hotkey).\n"
54 "             Pressing a hotkey more than once will sequence\n"
55 "             through all visible items which use that hotkey.\n"
56 "\n"
57 "   You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
58 "   unseen options into view.\n"
59 "\n"
60 "o  To exit a menu use the cursor keys to highlight the <Exit> button\n"
61 "   and press <ENTER>.\n"
62 "\n"
63 "   Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
64 "             using those letters.  You may press a single <ESC>, but\n"
65 "             there is a delayed response which you may find annoying.\n"
66 "\n"
67 "   Also, the <TAB> and cursor keys will cycle between <Select>,\n"
68 "   <Exit>, <Help>, <Save>, and <Load>.\n"
69 "\n"
70 "o  To get help with an item, use the cursor keys to highlight <Help>\n"
71 "   and press <ENTER>.\n"
72 "\n"
73 "   Shortcut: Press <H> or <?>.\n"
74 "\n"
75 "o  To toggle the display of hidden options, press <Z>.\n"
76 "\n"
77 "\n"
78 "Radiolists  (Choice lists)\n"
79 "-----------\n"
80 "o  Use the cursor keys to select the option you wish to set and press\n"
81 "   <S> or the <SPACE BAR>.\n"
82 "\n"
83 "   Shortcut: Press the first letter of the option you wish to set then\n"
84 "             press <S> or <SPACE BAR>.\n"
85 "\n"
86 "o  To see available help for the item, use the cursor keys to highlight\n"
87 "   <Help> and Press <ENTER>.\n"
88 "\n"
89 "   Shortcut: Press <H> or <?>.\n"
90 "\n"
91 "   Also, the <TAB> and cursor keys will cycle between <Select> and\n"
92 "   <Help>\n"
93 "\n"
94 "\n"
95 "Data Entry\n"
96 "-----------\n"
97 "o  Enter the requested information and press <ENTER>\n"
98 "   If you are entering hexadecimal values, it is not necessary to\n"
99 "   add the '0x' prefix to the entry.\n"
100 "\n"
101 "o  For help, use the <TAB> or cursor keys to highlight the help option\n"
102 "   and press <ENTER>.  You can try <TAB><H> as well.\n"
103 "\n"
104 "\n"
105 "Text Box    (Help Window)\n"
106 "--------\n"
107 "o  Use the cursor keys to scroll up/down/left/right.  The VI editor\n"
108 "   keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n"
109 "   those who are familiar with less and lynx.\n"
110 "\n"
111 "o  Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
112 "\n"
113 "\n"
114 "Alternate Configuration Files\n"
115 "-----------------------------\n"
116 "Menuconfig supports the use of alternate configuration files for\n"
117 "those who, for various reasons, find it necessary to switch\n"
118 "between different configurations.\n"
119 "\n"
120 "The <Save> button will let you save the current configuration to\n"
121 "a file of your choosing.  Use the <Load> button to load a previously\n"
122 "saved alternate configuration.\n"
123 "\n"
124 "Even if you don't use alternate configuration files, but you find\n"
125 "during a Menuconfig session that you have completely messed up your\n"
126 "settings, you may use the <Load> button to restore your previously\n"
127 "saved settings from \".config\" without restarting Menuconfig.\n"
128 "\n"
129 "Other information\n"
130 "-----------------\n"
131 "If you use Menuconfig in an XTERM window, make sure you have your\n"
132 "$TERM variable set to point to an xterm definition which supports\n"
133 "color.  Otherwise, Menuconfig will look rather bad.  Menuconfig will\n"
134 "not display correctly in an RXVT window because rxvt displays only one\n"
135 "intensity of color, bright.\n"
136 "\n"
137 "Menuconfig will display larger menus on screens or xterms which are\n"
138 "set to display more than the standard 25 row by 80 column geometry.\n"
139 "In order for this to work, the \"stty size\" command must be able to\n"
140 "display the screen's current row and column geometry.  I STRONGLY\n"
141 "RECOMMEND that you make sure you do NOT have the shell variables\n"
142 "LINES and COLUMNS exported into your environment.  Some distributions\n"
143 "export those variables via /etc/profile.  Some ncurses programs can\n"
144 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
145 "the true screen size.\n"
146 "\n"
147 "Optional personality available\n"
148 "------------------------------\n"
149 "If you prefer to have all of the options listed in a single menu,\n"
150 "rather than the default multimenu hierarchy, run the menuconfig with\n"
151 "MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
152 "\n"
153 "make MENUCONFIG_MODE=single_menu menuconfig\n"
154 "\n"
155 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
156 "is already unrolled.\n"
157 "\n"
158 "Note that this mode can eventually be a little more CPU expensive\n"
159 "(especially with a larger number of unrolled categories) than the\n"
160 "default mode.\n"
161 "\n"
162 "Different color themes available\n"
163 "--------------------------------\n"
164 "It is possible to select different color themes using the variable\n"
165 "MENUCONFIG_COLOR. To select a theme use:\n"
166 "\n"
167 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
168 "\n"
169 "Available themes are\n"
170 " mono       => selects colors suitable for monochrome displays\n"
171 " blackbg    => selects a color scheme with black background\n"
172 " classic    => theme with blue background. The classic look\n"
173 " bluetitle  => an LCD friendly version of classic. (default)\n"
174 "\n"),
175 menu_instructions[] = N_(
176 	"Arrow keys navigate the menu.  "
177 	"<Enter> selects submenus ---> (or empty submenus ----).  "
178 	"Highlighted letters are hotkeys.  "
179 	"Pressing <Y> includes, <N> excludes, <M> modularizes features.  "
180 	"Press <Esc><Esc> to exit, <?> for Help, </> for Search.  "
181 	"Legend: [*] built-in  [ ] excluded  <M> module  < > module capable"),
182 radiolist_instructions[] = N_(
183 	"Use the arrow keys to navigate this window or "
184 	"press the hotkey of the item you wish to select "
185 	"followed by the <SPACE BAR>. "
186 	"Press <?> for additional information about this option."),
187 inputbox_instructions_int[] = N_(
188 	"Please enter a decimal value. "
189 	"Fractions will not be accepted.  "
190 	"Use the <TAB> key to move from the input field to the buttons below it."),
191 inputbox_instructions_hex[] = N_(
192 	"Please enter a hexadecimal value. "
193 	"Use the <TAB> key to move from the input field to the buttons below it."),
194 inputbox_instructions_string[] = N_(
195 	"Please enter a string value. "
196 	"Use the <TAB> key to move from the input field to the buttons below it."),
197 setmod_text[] = N_(
198 	"This feature depends on another which has been configured as a module.\n"
199 	"As a result, this feature will be built as a module."),
200 load_config_text[] = N_(
201 	"Enter the name of the configuration file you wish to load.  "
202 	"Accept the name shown to restore the configuration you "
203 	"last retrieved.  Leave blank to abort."),
204 load_config_help[] = N_(
205 	"\n"
206 	"For various reasons, one may wish to keep several different\n"
207 	"configurations available on a single machine.\n"
208 	"\n"
209 	"If you have saved a previous configuration in a file other than the\n"
210 	"default one, entering its name here will allow you to modify that\n"
211 	"configuration.\n"
212 	"\n"
213 	"If you are uncertain, then you have probably never used alternate\n"
214 	"configuration files. You should therefore leave this blank to abort.\n"),
215 save_config_text[] = N_(
216 	"Enter a filename to which this configuration should be saved "
217 	"as an alternate.  Leave blank to abort."),
218 save_config_help[] = N_(
219 	"\n"
220 	"For various reasons, one may wish to keep different configurations\n"
221 	"available on a single machine.\n"
222 	"\n"
223 	"Entering a file name here will allow you to later retrieve, modify\n"
224 	"and use the current configuration as an alternate to whatever\n"
225 	"configuration options you have selected at that time.\n"
226 	"\n"
227 	"If you are uncertain what all this means then you should probably\n"
228 	"leave this blank.\n"),
229 search_help[] = N_(
230 	"\n"
231 	"Search for symbols and display their relations.\n"
232 	"Regular expressions are allowed.\n"
233 	"Example: search for \"^FOO\"\n"
234 	"Result:\n"
235 	"-----------------------------------------------------------------\n"
236 	"Symbol: FOO [=m]\n"
237 	"Type  : tristate\n"
238 	"Prompt: Foo bus is used to drive the bar HW\n"
239 	"  Location:\n"
240 	"    -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
241 	"      -> PCI support (PCI [=y])\n"
242 	"(1)     -> PCI access mode (<choice> [=y])\n"
243 	"  Defined at drivers/pci/Kconfig:47\n"
244 	"  Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
245 	"  Selects: LIBCRC32\n"
246 	"  Selected by: BAR [=n]\n"
247 	"-----------------------------------------------------------------\n"
248 	"o The line 'Type:' shows the type of the configuration option for\n"
249 	"  this symbol (boolean, tristate, string, ...)\n"
250 	"o The line 'Prompt:' shows the text used in the menu structure for\n"
251 	"  this symbol\n"
252 	"o The 'Defined at' line tells at what file / line number the symbol\n"
253 	"  is defined\n"
254 	"o The 'Depends on:' line tells what symbols need to be defined for\n"
255 	"  this symbol to be visible in the menu (selectable)\n"
256 	"o The 'Location:' lines tells where in the menu structure this symbol\n"
257 	"  is located\n"
258 	"    A location followed by a [=y] indicates that this is a\n"
259 	"    selectable menu item - and the current value is displayed inside\n"
260 	"    brackets.\n"
261 	"    Press the key in the (#) prefix to jump directly to that\n"
262 	"    location. You will be returned to the current search results\n"
263 	"    after exiting this new menu.\n"
264 	"o The 'Selects:' line tells what symbols will be automatically\n"
265 	"  selected if this symbol is selected (y or m)\n"
266 	"o The 'Selected by' line tells what symbol has selected this symbol\n"
267 	"\n"
268 	"Only relevant lines are shown.\n"
269 	"\n\n"
270 	"Search examples:\n"
271 	"Examples: USB	=> find all symbols containing USB\n"
272 	"          ^USB => find all symbols starting with USB\n"
273 	"          USB$ => find all symbols ending with USB\n"
274 	"\n");
275 
276 static int indent;
277 static struct menu *current_menu;
278 static int child_count;
279 static int single_menu_mode;
280 static int show_all_options;
281 static int save_and_exit;
282 static int silent;
283 
284 static void conf(struct menu *menu, struct menu *active_menu);
285 static void conf_choice(struct menu *menu);
286 static void conf_string(struct menu *menu);
287 static void conf_load(void);
288 static void conf_save(void);
289 static int show_textbox_ext(const char *title, char *text, int r, int c,
290 			    int *keys, int *vscroll, int *hscroll,
291 			    update_text_fn update_text, void *data);
292 static void show_textbox(const char *title, const char *text, int r, int c);
293 static void show_helptext(const char *title, const char *text);
294 static void show_help(struct menu *menu);
295 
296 static char filename[PATH_MAX+1];
set_config_filename(const char * config_filename)297 static void set_config_filename(const char *config_filename)
298 {
299 	static char menu_backtitle[PATH_MAX+128];
300 	int size;
301 
302 	size = snprintf(menu_backtitle, sizeof(menu_backtitle),
303 			"%s - %s", config_filename, rootmenu.prompt->text);
304 	if (size >= sizeof(menu_backtitle))
305 		menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
306 	set_dialog_backtitle(menu_backtitle);
307 
308 	size = snprintf(filename, sizeof(filename), "%s", config_filename);
309 	if (size >= sizeof(filename))
310 		filename[sizeof(filename)-1] = '\0';
311 }
312 
313 struct subtitle_part {
314 	struct list_head entries;
315 	const char *text;
316 };
317 static LIST_HEAD(trail);
318 
319 static struct subtitle_list *subtitles;
set_subtitle(void)320 static void set_subtitle(void)
321 {
322 	struct subtitle_part *sp;
323 	struct subtitle_list *pos, *tmp;
324 
325 	for (pos = subtitles; pos != NULL; pos = tmp) {
326 		tmp = pos->next;
327 		free(pos);
328 	}
329 
330 	subtitles = NULL;
331 	list_for_each_entry(sp, &trail, entries) {
332 		if (sp->text) {
333 			if (pos) {
334 				pos->next = xcalloc(1, sizeof(*pos));
335 				pos = pos->next;
336 			} else {
337 				subtitles = pos = xcalloc(1, sizeof(*pos));
338 			}
339 			pos->text = sp->text;
340 		}
341 	}
342 
343 	set_dialog_subtitles(subtitles);
344 }
345 
reset_subtitle(void)346 static void reset_subtitle(void)
347 {
348 	struct subtitle_list *pos, *tmp;
349 
350 	for (pos = subtitles; pos != NULL; pos = tmp) {
351 		tmp = pos->next;
352 		free(pos);
353 	}
354 	subtitles = NULL;
355 	set_dialog_subtitles(subtitles);
356 }
357 
358 struct search_data {
359 	struct list_head *head;
360 	struct menu **targets;
361 	int *keys;
362 };
363 
update_text(char * buf,size_t start,size_t end,void * _data)364 static void update_text(char *buf, size_t start, size_t end, void *_data)
365 {
366 	struct search_data *data = _data;
367 	struct jump_key *pos;
368 	int k = 0;
369 
370 	list_for_each_entry(pos, data->head, entries) {
371 		if (pos->offset >= start && pos->offset < end) {
372 			char header[4];
373 
374 			if (k < JUMP_NB) {
375 				int key = '0' + (pos->index % JUMP_NB) + 1;
376 
377 				sprintf(header, "(%c)", key);
378 				data->keys[k] = key;
379 				data->targets[k] = pos->target;
380 				k++;
381 			} else {
382 				sprintf(header, "   ");
383 			}
384 
385 			memcpy(buf + pos->offset, header, sizeof(header) - 1);
386 		}
387 	}
388 	data->keys[k] = 0;
389 }
390 
search_conf(void)391 static void search_conf(void)
392 {
393 	struct symbol **sym_arr;
394 	struct gstr res;
395 	struct gstr title;
396 	char *dialog_input;
397 	int dres, vscroll = 0, hscroll = 0;
398 	bool again;
399 	struct gstr sttext;
400 	struct subtitle_part stpart;
401 
402 	title = str_new();
403 	str_printf( &title, _("Enter (sub)string or regexp to search for "
404 			      "(with or without \"%s\")"), CONFIG_);
405 
406 again:
407 	dialog_clear();
408 	dres = dialog_inputbox(_("Search Configuration Parameter"),
409 			      str_get(&title),
410 			      10, 75, "");
411 	switch (dres) {
412 	case 0:
413 		break;
414 	case 1:
415 		show_helptext(_("Search Configuration"), search_help);
416 		goto again;
417 	default:
418 		str_free(&title);
419 		return;
420 	}
421 
422 	/* strip the prefix if necessary */
423 	dialog_input = dialog_input_result;
424 	if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
425 		dialog_input += strlen(CONFIG_);
426 
427 	sttext = str_new();
428 	str_printf(&sttext, "Search (%s)", dialog_input_result);
429 	stpart.text = str_get(&sttext);
430 	list_add_tail(&stpart.entries, &trail);
431 
432 	sym_arr = sym_re_search(dialog_input);
433 	do {
434 		LIST_HEAD(head);
435 		struct menu *targets[JUMP_NB];
436 		int keys[JUMP_NB + 1], i;
437 		struct search_data data = {
438 			.head = &head,
439 			.targets = targets,
440 			.keys = keys,
441 		};
442 		struct jump_key *pos, *tmp;
443 
444 		res = get_relations_str(sym_arr, &head);
445 		set_subtitle();
446 		dres = show_textbox_ext(_("Search Results"), (char *)
447 					str_get(&res), 0, 0, keys, &vscroll,
448 					&hscroll, &update_text, (void *)
449 					&data);
450 		again = false;
451 		for (i = 0; i < JUMP_NB && keys[i]; i++)
452 			if (dres == keys[i]) {
453 				conf(targets[i]->parent, targets[i]);
454 				again = true;
455 			}
456 		str_free(&res);
457 		list_for_each_entry_safe(pos, tmp, &head, entries)
458 			free(pos);
459 	} while (again);
460 	free(sym_arr);
461 	str_free(&title);
462 	list_del(trail.prev);
463 	str_free(&sttext);
464 }
465 
build_conf(struct menu * menu)466 static void build_conf(struct menu *menu)
467 {
468 	struct symbol *sym;
469 	struct property *prop;
470 	struct menu *child;
471 	int type, tmp, doint = 2;
472 	tristate val;
473 	char ch;
474 	bool visible;
475 
476 	/*
477 	 * note: menu_is_visible() has side effect that it will
478 	 * recalc the value of the symbol.
479 	 */
480 	visible = menu_is_visible(menu);
481 	if (show_all_options && !menu_has_prompt(menu))
482 		return;
483 	else if (!show_all_options && !visible)
484 		return;
485 
486 	sym = menu->sym;
487 	prop = menu->prompt;
488 	if (!sym) {
489 		if (prop && menu != current_menu) {
490 			const char *prompt = menu_get_prompt(menu);
491 			switch (prop->type) {
492 			case P_MENU:
493 				child_count++;
494 				prompt = _(prompt);
495 				if (single_menu_mode) {
496 					item_make("%s%*c%s",
497 						  menu->data ? "-->" : "++>",
498 						  indent + 1, ' ', prompt);
499 				} else
500 					item_make("   %*c%s  %s",
501 						  indent + 1, ' ', prompt,
502 						  menu_is_empty(menu) ? "----" : "--->");
503 				item_set_tag('m');
504 				item_set_data(menu);
505 				if (single_menu_mode && menu->data)
506 					goto conf_childs;
507 				return;
508 			case P_COMMENT:
509 				if (prompt) {
510 					child_count++;
511 					item_make("   %*c*** %s ***", indent + 1, ' ', _(prompt));
512 					item_set_tag(':');
513 					item_set_data(menu);
514 				}
515 				break;
516 			default:
517 				if (prompt) {
518 					child_count++;
519 					item_make("---%*c%s", indent + 1, ' ', _(prompt));
520 					item_set_tag(':');
521 					item_set_data(menu);
522 				}
523 			}
524 		} else
525 			doint = 0;
526 		goto conf_childs;
527 	}
528 
529 	type = sym_get_type(sym);
530 	if (sym_is_choice(sym)) {
531 		struct symbol *def_sym = sym_get_choice_value(sym);
532 		struct menu *def_menu = NULL;
533 
534 		child_count++;
535 		for (child = menu->list; child; child = child->next) {
536 			if (menu_is_visible(child) && child->sym == def_sym)
537 				def_menu = child;
538 		}
539 
540 		val = sym_get_tristate_value(sym);
541 		if (sym_is_changable(sym)) {
542 			switch (type) {
543 			case S_BOOLEAN:
544 				item_make("[%c]", val == no ? ' ' : '*');
545 				break;
546 			case S_TRISTATE:
547 				switch (val) {
548 				case yes: ch = '*'; break;
549 				case mod: ch = 'M'; break;
550 				default:  ch = ' '; break;
551 				}
552 				item_make("<%c>", ch);
553 				break;
554 			}
555 			item_set_tag('t');
556 			item_set_data(menu);
557 		} else {
558 			item_make("   ");
559 			item_set_tag(def_menu ? 't' : ':');
560 			item_set_data(menu);
561 		}
562 
563 		item_add_str("%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
564 		if (val == yes) {
565 			if (def_menu) {
566 				item_add_str(" (%s)", _(menu_get_prompt(def_menu)));
567 				item_add_str("  --->");
568 				if (def_menu->list) {
569 					indent += 2;
570 					build_conf(def_menu);
571 					indent -= 2;
572 				}
573 			}
574 			return;
575 		}
576 	} else {
577 		if (menu == current_menu) {
578 			item_make("---%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
579 			item_set_tag(':');
580 			item_set_data(menu);
581 			goto conf_childs;
582 		}
583 		child_count++;
584 		val = sym_get_tristate_value(sym);
585 		if (sym_is_choice_value(sym) && val == yes) {
586 			item_make("   ");
587 			item_set_tag(':');
588 			item_set_data(menu);
589 		} else {
590 			switch (type) {
591 			case S_BOOLEAN:
592 				if (sym_is_changable(sym))
593 					item_make("[%c]", val == no ? ' ' : '*');
594 				else
595 					item_make("-%c-", val == no ? ' ' : '*');
596 				item_set_tag('t');
597 				item_set_data(menu);
598 				break;
599 			case S_TRISTATE:
600 				switch (val) {
601 				case yes: ch = '*'; break;
602 				case mod: ch = 'M'; break;
603 				default:  ch = ' '; break;
604 				}
605 				if (sym_is_changable(sym)) {
606 					if (sym->rev_dep.tri == mod)
607 						item_make("{%c}", ch);
608 					else
609 						item_make("<%c>", ch);
610 				} else
611 					item_make("-%c-", ch);
612 				item_set_tag('t');
613 				item_set_data(menu);
614 				break;
615 			default:
616 				tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
617 				item_make("(%s)", sym_get_string_value(sym));
618 				tmp = indent - tmp + 4;
619 				if (tmp < 0)
620 					tmp = 0;
621 				item_add_str("%*c%s%s", tmp, ' ', _(menu_get_prompt(menu)),
622 					     (sym_has_value(sym) || !sym_is_changable(sym)) ?
623 					     "" : _(" (NEW)"));
624 				item_set_tag('s');
625 				item_set_data(menu);
626 				goto conf_childs;
627 			}
628 		}
629 		item_add_str("%*c%s%s", indent + 1, ' ', _(menu_get_prompt(menu)),
630 			  (sym_has_value(sym) || !sym_is_changable(sym)) ?
631 			  "" : _(" (NEW)"));
632 		if (menu->prompt->type == P_MENU) {
633 			item_add_str("  %s", menu_is_empty(menu) ? "----" : "--->");
634 			return;
635 		}
636 	}
637 
638 conf_childs:
639 	indent += doint;
640 	for (child = menu->list; child; child = child->next)
641 		build_conf(child);
642 	indent -= doint;
643 }
644 
conf(struct menu * menu,struct menu * active_menu)645 static void conf(struct menu *menu, struct menu *active_menu)
646 {
647 	struct menu *submenu;
648 	const char *prompt = menu_get_prompt(menu);
649 	struct subtitle_part stpart;
650 	struct symbol *sym;
651 	int res;
652 	int s_scroll = 0;
653 
654 	if (menu != &rootmenu)
655 		stpart.text = menu_get_prompt(menu);
656 	else
657 		stpart.text = NULL;
658 	list_add_tail(&stpart.entries, &trail);
659 
660 	while (1) {
661 		item_reset();
662 		current_menu = menu;
663 		build_conf(menu);
664 		if (!child_count)
665 			break;
666 		set_subtitle();
667 		dialog_clear();
668 		res = dialog_menu(prompt ? _(prompt) : _("Main Menu"),
669 				  _(menu_instructions),
670 				  active_menu, &s_scroll);
671 		if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
672 			break;
673 		if (item_count() != 0) {
674 			if (!item_activate_selected())
675 				continue;
676 			if (!item_tag())
677 				continue;
678 		}
679 		submenu = item_data();
680 		active_menu = item_data();
681 		if (submenu)
682 			sym = submenu->sym;
683 		else
684 			sym = NULL;
685 
686 		switch (res) {
687 		case 0:
688 			switch (item_tag()) {
689 			case 'm':
690 				if (single_menu_mode)
691 					submenu->data = (void *) (long) !submenu->data;
692 				else
693 					conf(submenu, NULL);
694 				break;
695 			case 't':
696 				if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
697 					conf_choice(submenu);
698 				else if (submenu->prompt->type == P_MENU)
699 					conf(submenu, NULL);
700 				break;
701 			case 's':
702 				conf_string(submenu);
703 				break;
704 			}
705 			break;
706 		case 2:
707 			if (sym)
708 				show_help(submenu);
709 			else {
710 				reset_subtitle();
711 				show_helptext(_("README"), _(mconf_readme));
712 			}
713 			break;
714 		case 3:
715 			reset_subtitle();
716 			conf_save();
717 			break;
718 		case 4:
719 			reset_subtitle();
720 			conf_load();
721 			break;
722 		case 5:
723 			if (item_is_tag('t')) {
724 				if (sym_set_tristate_value(sym, yes))
725 					break;
726 				if (sym_set_tristate_value(sym, mod))
727 					show_textbox(NULL, setmod_text, 6, 74);
728 			}
729 			break;
730 		case 6:
731 			if (item_is_tag('t'))
732 				sym_set_tristate_value(sym, no);
733 			break;
734 		case 7:
735 			if (item_is_tag('t'))
736 				sym_set_tristate_value(sym, mod);
737 			break;
738 		case 8:
739 			if (item_is_tag('t'))
740 				sym_toggle_tristate_value(sym);
741 			else if (item_is_tag('m'))
742 				conf(submenu, NULL);
743 			break;
744 		case 9:
745 			search_conf();
746 			break;
747 		case 10:
748 			show_all_options = !show_all_options;
749 			break;
750 		}
751 	}
752 
753 	list_del(trail.prev);
754 }
755 
show_textbox_ext(const char * title,char * text,int r,int c,int * keys,int * vscroll,int * hscroll,update_text_fn update_text,void * data)756 static int show_textbox_ext(const char *title, char *text, int r, int c, int
757 			    *keys, int *vscroll, int *hscroll, update_text_fn
758 			    update_text, void *data)
759 {
760 	dialog_clear();
761 	return dialog_textbox(title, text, r, c, keys, vscroll, hscroll,
762 			      update_text, data);
763 }
764 
show_textbox(const char * title,const char * text,int r,int c)765 static void show_textbox(const char *title, const char *text, int r, int c)
766 {
767 	show_textbox_ext(title, (char *) text, r, c, (int []) {0}, NULL, NULL,
768 			 NULL, NULL);
769 }
770 
show_helptext(const char * title,const char * text)771 static void show_helptext(const char *title, const char *text)
772 {
773 	show_textbox(title, text, 0, 0);
774 }
775 
conf_message_callback(const char * fmt,va_list ap)776 static void conf_message_callback(const char *fmt, va_list ap)
777 {
778 	char buf[PATH_MAX+1];
779 
780 	vsnprintf(buf, sizeof(buf), fmt, ap);
781 	if (save_and_exit) {
782 		if (!silent)
783 			printf("%s", buf);
784 	} else {
785 		show_textbox(NULL, buf, 6, 60);
786 	}
787 }
788 
show_help(struct menu * menu)789 static void show_help(struct menu *menu)
790 {
791 	struct gstr help = str_new();
792 
793 	help.max_width = getmaxx(stdscr) - 10;
794 	menu_get_ext_help(menu, &help);
795 
796 	show_helptext(_(menu_get_prompt(menu)), str_get(&help));
797 	str_free(&help);
798 }
799 
conf_choice(struct menu * menu)800 static void conf_choice(struct menu *menu)
801 {
802 	const char *prompt = _(menu_get_prompt(menu));
803 	struct menu *child;
804 	struct symbol *active;
805 
806 	active = sym_get_choice_value(menu->sym);
807 	while (1) {
808 		int res;
809 		int selected;
810 		item_reset();
811 
812 		current_menu = menu;
813 		for (child = menu->list; child; child = child->next) {
814 			if (!menu_is_visible(child))
815 				continue;
816 			if (child->sym)
817 				item_make("%s", _(menu_get_prompt(child)));
818 			else {
819 				item_make("*** %s ***", _(menu_get_prompt(child)));
820 				item_set_tag(':');
821 			}
822 			item_set_data(child);
823 			if (child->sym == active)
824 				item_set_selected(1);
825 			if (child->sym == sym_get_choice_value(menu->sym))
826 				item_set_tag('X');
827 		}
828 		dialog_clear();
829 		res = dialog_checklist(prompt ? _(prompt) : _("Main Menu"),
830 					_(radiolist_instructions),
831 					MENUBOX_HEIGTH_MIN,
832 					MENUBOX_WIDTH_MIN,
833 					CHECKLIST_HEIGTH_MIN);
834 		selected = item_activate_selected();
835 		switch (res) {
836 		case 0:
837 			if (selected) {
838 				child = item_data();
839 				if (!child->sym)
840 					break;
841 
842 				sym_set_tristate_value(child->sym, yes);
843 			}
844 			return;
845 		case 1:
846 			if (selected) {
847 				child = item_data();
848 				show_help(child);
849 				active = child->sym;
850 			} else
851 				show_help(menu);
852 			break;
853 		case KEY_ESC:
854 			return;
855 		case -ERRDISPLAYTOOSMALL:
856 			return;
857 		}
858 	}
859 }
860 
conf_string(struct menu * menu)861 static void conf_string(struct menu *menu)
862 {
863 	const char *prompt = menu_get_prompt(menu);
864 
865 	while (1) {
866 		int res;
867 		const char *heading;
868 
869 		switch (sym_get_type(menu->sym)) {
870 		case S_INT:
871 			heading = _(inputbox_instructions_int);
872 			break;
873 		case S_HEX:
874 			heading = _(inputbox_instructions_hex);
875 			break;
876 		case S_STRING:
877 			heading = _(inputbox_instructions_string);
878 			break;
879 		default:
880 			heading = _("Internal mconf error!");
881 		}
882 		dialog_clear();
883 		res = dialog_inputbox(prompt ? _(prompt) : _("Main Menu"),
884 				      heading, 10, 75,
885 				      sym_get_string_value(menu->sym));
886 		switch (res) {
887 		case 0:
888 			if (sym_set_string_value(menu->sym, dialog_input_result))
889 				return;
890 			show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
891 			break;
892 		case 1:
893 			show_help(menu);
894 			break;
895 		case KEY_ESC:
896 			return;
897 		}
898 	}
899 }
900 
conf_load(void)901 static void conf_load(void)
902 {
903 
904 	while (1) {
905 		int res;
906 		dialog_clear();
907 		res = dialog_inputbox(NULL, load_config_text,
908 				      11, 55, filename);
909 		switch(res) {
910 		case 0:
911 			if (!dialog_input_result[0])
912 				return;
913 			if (!conf_read(dialog_input_result)) {
914 				set_config_filename(dialog_input_result);
915 				sym_set_change_count(1);
916 				return;
917 			}
918 			show_textbox(NULL, _("File does not exist!"), 5, 38);
919 			break;
920 		case 1:
921 			show_helptext(_("Load Alternate Configuration"), load_config_help);
922 			break;
923 		case KEY_ESC:
924 			return;
925 		}
926 	}
927 }
928 
conf_save(void)929 static void conf_save(void)
930 {
931 	while (1) {
932 		int res;
933 		dialog_clear();
934 		res = dialog_inputbox(NULL, save_config_text,
935 				      11, 55, filename);
936 		switch(res) {
937 		case 0:
938 			if (!dialog_input_result[0])
939 				return;
940 			if (!conf_write(dialog_input_result)) {
941 				set_config_filename(dialog_input_result);
942 				return;
943 			}
944 			show_textbox(NULL, _("Can't create file!  Probably a nonexistent directory."), 5, 60);
945 			break;
946 		case 1:
947 			show_helptext(_("Save Alternate Configuration"), save_config_help);
948 			break;
949 		case KEY_ESC:
950 			return;
951 		}
952 	}
953 }
954 
handle_exit(void)955 static int handle_exit(void)
956 {
957 	int res;
958 
959 	save_and_exit = 1;
960 	reset_subtitle();
961 	dialog_clear();
962 	if (conf_get_changed())
963 		res = dialog_yesno(NULL,
964 				   _("Do you wish to save your new configuration?\n"
965 				     "(Press <ESC><ESC> to continue kernel configuration.)"),
966 				   6, 60);
967 	else
968 		res = -1;
969 
970 	end_dialog(saved_x, saved_y);
971 
972 	switch (res) {
973 	case 0:
974 		if (conf_write(filename)) {
975 			fprintf(stderr, _("\n\n"
976 					  "Error while writing of the configuration.\n"
977 					  "Your configuration changes were NOT saved."
978 					  "\n\n"));
979 			return 1;
980 		}
981 		/* fall through */
982 	case -1:
983 		if (!silent) {
984 			const char *is_cmake = getenv("IDF_CMAKE");
985 			const char *build_msg;
986 			if (is_cmake && is_cmake[0] == 'y')
987 				build_msg = _("Ready to use CMake (or 'idf.py build') to build the project.");
988 			else
989 				build_msg = _("Execute 'make' to start the build or try 'make help'.");
990 			printf(_("\n\n"
991 					 "*** End of the configuration.\n"
992 					 "*** %s\n\n"), build_msg);
993 		}
994 		res = 0;
995 		break;
996 	default:
997 		if (!silent)
998 			fprintf(stderr, _("\n\n"
999 					  "Your configuration changes were NOT saved."
1000 					  "\n\n"));
1001 		if (res != KEY_ESC)
1002 			res = 0;
1003 	}
1004 
1005 	return res;
1006 }
1007 
sig_handler(int signo)1008 static void sig_handler(int signo)
1009 {
1010 	exit(handle_exit());
1011 }
1012 
main(int ac,char ** av)1013 int main(int ac, char **av)
1014 {
1015 	char *mode;
1016 	int res;
1017 
1018 	setlocale(LC_ALL, "");
1019 	bindtextdomain(PACKAGE, LOCALEDIR);
1020 	textdomain(PACKAGE);
1021 
1022 	signal(SIGINT, sig_handler);
1023 
1024 	if (ac > 1 && strcmp(av[1], "-s") == 0) {
1025 		silent = 1;
1026 		/* Silence conf_read() until the real callback is set up */
1027 		conf_set_message_callback(NULL);
1028 		av++;
1029 	}
1030 	conf_parse(av[1]);
1031 	conf_read(NULL);
1032 
1033 	mode = getenv("MENUCONFIG_MODE");
1034 	if (mode) {
1035 		if (!strcasecmp(mode, "single_menu"))
1036 			single_menu_mode = 1;
1037 	}
1038 
1039 	if (init_dialog(NULL)) {
1040 		fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
1041 		fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
1042 		return 1;
1043 	}
1044 
1045 	sym_set_change_count(0);
1046 
1047 	set_config_filename(conf_get_configname());
1048 	conf_set_message_callback(conf_message_callback);
1049 	do {
1050 		conf(&rootmenu, NULL);
1051 		res = handle_exit();
1052 	} while (res == KEY_ESC);
1053 
1054 	return res;
1055 }
1056