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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com>
4 *
5 * Derived from menuconfig.
6 */
7#ifndef _GNU_SOURCE
8#define _GNU_SOURCE
9#endif
10#include <string.h>
11#include <strings.h>
12#include <stdlib.h>
13
14#include "lkc.h"
15#include "nconf.h"
16#include <ctype.h>
17
18static const char nconf_global_help[] =
19"Help windows\n"
20"------------\n"
21"o Global help: Unless in a data entry window, pressing <F1> will give \n"
22" you the global help window, which you are just reading.\n"
23"\n"
24"o A short version of the global help is available by pressing <F3>.\n"
25"\n"
26"o Local help: To get help related to the current menu entry, use any\n"
27" of <?> <h>, or if in a data entry window then press <F1>.\n"
28"\n"
29"\n"
30"Menu entries\n"
31"------------\n"
32"This interface lets you select features and parameters for the kernel\n"
33"build. Kernel features can either be built-in, modularized, or removed.\n"
34"Parameters must be entered as text or decimal or hexadecimal numbers.\n"
35"\n"
36"Menu entries beginning with following braces represent features that\n"
37" [ ] can be built in or removed\n"
38" < > can be built in, modularized or removed\n"
39" { } can be built in or modularized, are selected by another feature\n"
40" - - are selected by another feature\n"
41" XXX cannot be selected. Symbol Info <F2> tells you why.\n"
42"*, M or whitespace inside braces means to build in, build as a module\n"
43"or to exclude the feature respectively.\n"
44"\n"
45"To change any of these features, highlight it with the movement keys\n"
46"listed below and press <y> to build it in, <m> to make it a module or\n"
47"<n> to remove it. You may press the <Space> key to cycle through the\n"
48"available options.\n"
49"\n"
50"A trailing \"--->\" designates a submenu, a trailing \"----\" an\n"
51"empty submenu.\n"
52"\n"
53"Menu navigation keys\n"
54"----------------------------------------------------------------------\n"
55"Linewise up <Up>\n"
56"Linewise down <Down>\n"
57"Pagewise up <Page Up>\n"
58"Pagewise down <Page Down>\n"
59"First entry <Home>\n"
60"Last entry <End>\n"
61"Enter a submenu <Right> <Enter>\n"
62"Go back to parent menu <Left> <Esc> <F5>\n"
63"Close a help window <Enter> <Esc> <F5>\n"
64"Close entry window, apply <Enter>\n"
65"Close entry window, forget <Esc> <F5>\n"
66"Start incremental, case-insensitive search for STRING in menu entries,\n"
67" no regex support, STRING is displayed in upper left corner\n"
68" </>STRING\n"
69" Remove last character <Backspace>\n"
70" Jump to next hit <Down>\n"
71" Jump to previous hit <Up>\n"
72"Exit menu search mode </> <Esc>\n"
73"Search for configuration variables with or without leading CONFIG_\n"
74" <F8>RegExpr<Enter>\n"
75"Verbose search help <F8><F1>\n"
76"----------------------------------------------------------------------\n"
77"\n"
78"Unless in a data entry window, key <1> may be used instead of <F1>,\n"
79"<2> instead of <F2>, etc.\n"
80"\n"
81"\n"
82"Radiolist (Choice list)\n"
83"-----------------------\n"
84"Use the movement keys listed above to select the option you wish to set\n"
85"and press <Space>.\n"
86"\n"
87"\n"
88"Data entry\n"
89"----------\n"
90"Enter the requested information and press <Enter>. Hexadecimal values\n"
91"may be entered without the \"0x\" prefix.\n"
92"\n"
93"\n"
94"Text Box (Help Window)\n"
95"----------------------\n"
96"Use movement keys as listed in table above.\n"
97"\n"
98"Press any of <Enter> <Esc> <q> <F5> <F9> to exit.\n"
99"\n"
100"\n"
101"Alternate configuration files\n"
102"-----------------------------\n"
103"nconfig supports switching between different configurations.\n"
104"Press <F6> to save your current configuration. Press <F7> and enter\n"
105"a file name to load a previously saved configuration.\n"
106"\n"
107"\n"
108"Terminal configuration\n"
109"----------------------\n"
110"If you use nconfig in a xterm window, make sure your TERM environment\n"
111"variable specifies a terminal configuration which supports at least\n"
112"16 colors. Otherwise nconfig will look rather bad.\n"
113"\n"
114"If the \"stty size\" command reports the current terminalsize correctly,\n"
115"nconfig will adapt to sizes larger than the traditional 80x25 \"standard\"\n"
116"and display longer menus properly.\n"
117"\n"
118"\n"
119"Single menu mode\n"
120"----------------\n"
121"If you prefer to have all of the menu entries listed in a single menu,\n"
122"rather than the default multimenu hierarchy, run nconfig with\n"
123"NCONFIG_MODE environment variable set to single_menu. Example:\n"
124"\n"
125"make NCONFIG_MODE=single_menu nconfig\n"
126"\n"
127"<Enter> will then unfold the appropriate category, or fold it if it\n"
128"is already unfolded. Folded menu entries will be designated by a\n"
129"leading \"++>\" and unfolded entries by a leading \"-->\".\n"
130"\n"
131"Note that this mode can eventually be a little more CPU expensive than\n"
132"the default mode, especially with a larger number of unfolded submenus.\n"
133"\n",
134menu_no_f_instructions[] =
135"Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
136"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
137"\n"
138"Use the following keys to navigate the menus:\n"
139"Move up or down with <Up> and <Down>.\n"
140"Enter a submenu with <Enter> or <Right>.\n"
141"Exit a submenu to its parent menu with <Esc> or <Left>.\n"
142"Pressing <y> includes, <n> excludes, <m> modularizes features.\n"
143"Pressing <Space> cycles through the available options.\n"
144"To search for menu entries press </>.\n"
145"<Esc> always leaves the current window.\n"
146"\n"
147"You do not have function keys support.\n"
148"Press <1> instead of <F1>, <2> instead of <F2>, etc.\n"
149"For verbose global help use key <1>.\n"
150"For help related to the current menu entry press <?> or <h>.\n",
151menu_instructions[] =
152"Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
153"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
154"\n"
155"Use the following keys to navigate the menus:\n"
156"Move up or down with <Up> or <Down>.\n"
157"Enter a submenu with <Enter> or <Right>.\n"
158"Exit a submenu to its parent menu with <Esc> or <Left>.\n"
159"Pressing <y> includes, <n> excludes, <m> modularizes features.\n"
160"Pressing <Space> cycles through the available options.\n"
161"To search for menu entries press </>.\n"
162"<Esc> always leaves the current window.\n"
163"\n"
164"Pressing <1> may be used instead of <F1>, <2> instead of <F2>, etc.\n"
165"For verbose global help press <F1>.\n"
166"For help related to the current menu entry press <?> or <h>.\n",
167radiolist_instructions[] =
168"Press <Up>, <Down>, <Home> or <End> to navigate a radiolist, select\n"
169"with <Space>.\n"
170"For help related to the current entry press <?> or <h>.\n"
171"For global help press <F1>.\n",
172inputbox_instructions_int[] =
173"Please enter a decimal value.\n"
174"Fractions will not be accepted.\n"
175"Press <Enter> to apply, <Esc> to cancel.",
176inputbox_instructions_hex[] =
177"Please enter a hexadecimal value.\n"
178"Press <Enter> to apply, <Esc> to cancel.",
179inputbox_instructions_string[] =
180"Please enter a string value.\n"
181"Press <Enter> to apply, <Esc> to cancel.",
182setmod_text[] =
183"This feature depends on another feature which has been configured as a\n"
184"module. As a result, the current feature will be built as a module too.",
185load_config_text[] =
186"Enter the name of the configuration file you wish to load.\n"
187"Accept the name shown to restore the configuration you last\n"
188"retrieved. Leave empty to abort.",
189load_config_help[] =
190"For various reasons, one may wish to keep several different\n"
191"configurations available on a single machine.\n"
192"\n"
193"If you have saved a previous configuration in a file other than the\n"
194"default one, entering its name here will allow you to load and modify\n"
195"that configuration.\n"
196"\n"
197"Leave empty to abort.\n",
198save_config_text[] =
199"Enter a filename to which this configuration should be saved\n"
200"as an alternate. Leave empty to abort.",
201save_config_help[] =
202"For various reasons, one may wish to keep several different\n"
203"configurations available on a single machine.\n"
204"\n"
205"Entering a file name here will allow you to later retrieve, modify\n"
206"and use the current configuration as an alternate to whatever\n"
207"configuration options you have selected at that time.\n"
208"\n"
209"Leave empty to abort.\n",
210search_help[] =
211"Search for symbols (configuration variable names CONFIG_*) and display\n"
212"their relations. Regular expressions are supported.\n"
213"Example: Search for \"^FOO\".\n"
214"Result:\n"
215"-----------------------------------------------------------------\n"
216"Symbol: FOO [ = m]\n"
217"Prompt: Foo bus is used to drive the bar HW\n"
218"Defined at drivers/pci/Kconfig:47\n"
219"Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
220"Location:\n"
221" -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
222" -> PCI support (PCI [ = y])\n"
223" -> PCI access mode (<choice> [ = y])\n"
224"Selects: LIBCRC32\n"
225"Selected by: BAR\n"
226"-----------------------------------------------------------------\n"
227"o The line 'Prompt:' shows the text displayed for this symbol in\n"
228" the menu hierarchy.\n"
229"o The 'Defined at' line tells at what file / line number the symbol is\n"
230" defined.\n"
231"o The 'Depends on:' line lists symbols that need to be defined for\n"
232" this symbol to be visible and selectable in the menu.\n"
233"o The 'Location:' lines tell, where in the menu structure this symbol\n"
234" is located. A location followed by a [ = y] indicates that this is\n"
235" a selectable menu item, and the current value is displayed inside\n"
236" brackets.\n"
237"o The 'Selects:' line tells, what symbol will be automatically selected\n"
238" if this symbol is selected (y or m).\n"
239"o The 'Selected by' line tells what symbol has selected this symbol.\n"
240"\n"
241"Only relevant lines are shown.\n"
242"\n\n"
243"Search examples:\n"
244"USB => find all symbols containing USB\n"
245"^USB => find all symbols starting with USB\n"
246"USB$ => find all symbols ending with USB\n"
247"\n";
248
249struct mitem {
250 char str[256];
251 char tag;
252 void *usrptr;
253 int is_visible;
254};
255
256#define MAX_MENU_ITEMS 4096
257static int show_all_items;
258static int indent;
259static struct menu *current_menu;
260static int child_count;
261static int single_menu_mode;
262/* the window in which all information appears */
263static WINDOW *main_window;
264/* the largest size of the menu window */
265static int mwin_max_lines;
266static int mwin_max_cols;
267/* the window in which we show option buttons */
268static MENU *curses_menu;
269static ITEM *curses_menu_items[MAX_MENU_ITEMS];
270static struct mitem k_menu_items[MAX_MENU_ITEMS];
271static unsigned int items_num;
272static int global_exit;
273/* the currently selected button */
274static const char *current_instructions = menu_instructions;
275
276static char *dialog_input_result;
277static int dialog_input_result_len;
278
279static void conf(struct menu *menu);
280static void conf_choice(struct menu *menu);
281static void conf_string(struct menu *menu);
282static void conf_load(void);
283static void conf_save(void);
284static void show_help(struct menu *menu);
285static int do_exit(void);
286static void setup_windows(void);
287static void search_conf(void);
288
289typedef void (*function_key_handler_t)(int *key, struct menu *menu);
290static void handle_f1(int *key, struct menu *current_item);
291static void handle_f2(int *key, struct menu *current_item);
292static void handle_f3(int *key, struct menu *current_item);
293static void handle_f4(int *key, struct menu *current_item);
294static void handle_f5(int *key, struct menu *current_item);
295static void handle_f6(int *key, struct menu *current_item);
296static void handle_f7(int *key, struct menu *current_item);
297static void handle_f8(int *key, struct menu *current_item);
298static void handle_f9(int *key, struct menu *current_item);
299
300struct function_keys {
301 const char *key_str;
302 const char *func;
303 function_key key;
304 function_key_handler_t handler;
305};
306
307static const int function_keys_num = 9;
308static struct function_keys function_keys[] = {
309 {
310 .key_str = "F1",
311 .func = "Help",
312 .key = F_HELP,
313 .handler = handle_f1,
314 },
315 {
316 .key_str = "F2",
317 .func = "SymInfo",
318 .key = F_SYMBOL,
319 .handler = handle_f2,
320 },
321 {
322 .key_str = "F3",
323 .func = "Help 2",
324 .key = F_INSTS,
325 .handler = handle_f3,
326 },
327 {
328 .key_str = "F4",
329 .func = "ShowAll",
330 .key = F_CONF,
331 .handler = handle_f4,
332 },
333 {
334 .key_str = "F5",
335 .func = "Back",
336 .key = F_BACK,
337 .handler = handle_f5,
338 },
339 {
340 .key_str = "F6",
341 .func = "Save",
342 .key = F_SAVE,
343 .handler = handle_f6,
344 },
345 {
346 .key_str = "F7",
347 .func = "Load",
348 .key = F_LOAD,
349 .handler = handle_f7,
350 },
351 {
352 .key_str = "F8",
353 .func = "SymSearch",
354 .key = F_SEARCH,
355 .handler = handle_f8,
356 },
357 {
358 .key_str = "F9",
359 .func = "Exit",
360 .key = F_EXIT,
361 .handler = handle_f9,
362 },
363};
364
365static void print_function_line(void)
366{
367 int i;
368 int offset = 1;
369 const int skip = 1;
370 int lines = getmaxy(stdscr);
371
372 for (i = 0; i < function_keys_num; i++) {
373 wattrset(main_window, attr_function_highlight);
374 mvwprintw(main_window, lines-3, offset,
375 "%s",
376 function_keys[i].key_str);
377 wattrset(main_window, attr_function_text);
378 offset += strlen(function_keys[i].key_str);
379 mvwprintw(main_window, lines-3,
380 offset, "%s",
381 function_keys[i].func);
382 offset += strlen(function_keys[i].func) + skip;
383 }
384 wattrset(main_window, attr_normal);
385}
386
387/* help */
388static void handle_f1(int *key, struct menu *current_item)
389{
390 show_scroll_win(main_window,
391 "Global help", nconf_global_help);
392 return;
393}
394
395/* symbole help */
396static void handle_f2(int *key, struct menu *current_item)
397{
398 show_help(current_item);
399 return;
400}
401
402/* instructions */
403static void handle_f3(int *key, struct menu *current_item)
404{
405 show_scroll_win(main_window,
406 "Short help",
407 current_instructions);
408 return;
409}
410
411/* config */
412static void handle_f4(int *key, struct menu *current_item)
413{
414 int res = btn_dialog(main_window,
415 "Show all symbols?",
416 2,
417 " <Show All> ",
418 "<Don't show all>");
419 if (res == 0)
420 show_all_items = 1;
421 else if (res == 1)
422 show_all_items = 0;
423
424 return;
425}
426
427/* back */
428static void handle_f5(int *key, struct menu *current_item)
429{
430 *key = KEY_LEFT;
431 return;
432}
433
434/* save */
435static void handle_f6(int *key, struct menu *current_item)
436{
437 conf_save();
438 return;
439}
440
441/* load */
442static void handle_f7(int *key, struct menu *current_item)
443{
444 conf_load();
445 return;
446}
447
448/* search */
449static void handle_f8(int *key, struct menu *current_item)
450{
451 search_conf();
452 return;
453}
454
455/* exit */
456static void handle_f9(int *key, struct menu *current_item)
457{
458 do_exit();
459 return;
460}
461
462/* return != 0 to indicate the key was handles */
463static int process_special_keys(int *key, struct menu *menu)
464{
465 int i;
466
467 if (*key == KEY_RESIZE) {
468 setup_windows();
469 return 1;
470 }
471
472 for (i = 0; i < function_keys_num; i++) {
473 if (*key == KEY_F(function_keys[i].key) ||
474 *key == '0' + function_keys[i].key){
475 function_keys[i].handler(key, menu);
476 return 1;
477 }
478 }
479
480 return 0;
481}
482
483static void clean_items(void)
484{
485 int i;
486 for (i = 0; curses_menu_items[i]; i++)
487 free_item(curses_menu_items[i]);
488 bzero(curses_menu_items, sizeof(curses_menu_items));
489 bzero(k_menu_items, sizeof(k_menu_items));
490 items_num = 0;
491}
492
493typedef enum {MATCH_TINKER_PATTERN_UP, MATCH_TINKER_PATTERN_DOWN,
494 FIND_NEXT_MATCH_DOWN, FIND_NEXT_MATCH_UP} match_f;
495
496/* return the index of the matched item, or -1 if no such item exists */
497static int get_mext_match(const char *match_str, match_f flag)
498{
499 int match_start, index;
500
501 /* Do not search if the menu is empty (i.e. items_num == 0) */
502 match_start = item_index(current_item(curses_menu));
503 if (match_start == ERR)
504 return -1;
505
506 if (flag == FIND_NEXT_MATCH_DOWN)
507 ++match_start;
508 else if (flag == FIND_NEXT_MATCH_UP)
509 --match_start;
510
511 match_start = (match_start + items_num) % items_num;
512 index = match_start;
513 while (true) {
514 char *str = k_menu_items[index].str;
515 if (strcasestr(str, match_str) != NULL)
516 return index;
517 if (flag == FIND_NEXT_MATCH_UP ||
518 flag == MATCH_TINKER_PATTERN_UP)
519 --index;
520 else
521 ++index;
522 index = (index + items_num) % items_num;
523 if (index == match_start)
524 return -1;
525 }
526}
527
528/* Make a new item. */
529static void item_make(struct menu *menu, char tag, const char *fmt, ...)
530{
531 va_list ap;
532
533 if (items_num > MAX_MENU_ITEMS-1)
534 return;
535
536 bzero(&k_menu_items[items_num], sizeof(k_menu_items[0]));
537 k_menu_items[items_num].tag = tag;
538 k_menu_items[items_num].usrptr = menu;
539 if (menu != NULL)
540 k_menu_items[items_num].is_visible =
541 menu_is_visible(menu);
542 else
543 k_menu_items[items_num].is_visible = 1;
544
545 va_start(ap, fmt);
546 vsnprintf(k_menu_items[items_num].str,
547 sizeof(k_menu_items[items_num].str),
548 fmt, ap);
549 va_end(ap);
550
551 if (!k_menu_items[items_num].is_visible)
552 memcpy(k_menu_items[items_num].str, "XXX", 3);
553
554 curses_menu_items[items_num] = new_item(
555 k_menu_items[items_num].str,
556 k_menu_items[items_num].str);
557 set_item_userptr(curses_menu_items[items_num],
558 &k_menu_items[items_num]);
559 /*
560 if (!k_menu_items[items_num].is_visible)
561 item_opts_off(curses_menu_items[items_num], O_SELECTABLE);
562 */
563
564 items_num++;
565 curses_menu_items[items_num] = NULL;
566}
567
568/* very hackish. adds a string to the last item added */
569static void item_add_str(const char *fmt, ...)
570{
571 va_list ap;
572 int index = items_num-1;
573 char new_str[256];
574 char tmp_str[256];
575
576 if (index < 0)
577 return;
578
579 va_start(ap, fmt);
580 vsnprintf(new_str, sizeof(new_str), fmt, ap);
581 va_end(ap);
582 snprintf(tmp_str, sizeof(tmp_str), "%s%s",
583 k_menu_items[index].str, new_str);
584 strncpy(k_menu_items[index].str,
585 tmp_str,
586 sizeof(k_menu_items[index].str));
587
588 free_item(curses_menu_items[index]);
589 curses_menu_items[index] = new_item(
590 k_menu_items[index].str,
591 k_menu_items[index].str);
592 set_item_userptr(curses_menu_items[index],
593 &k_menu_items[index]);
594}
595
596/* get the tag of the currently selected item */
597static char item_tag(void)
598{
599 ITEM *cur;
600 struct mitem *mcur;
601
602 cur = current_item(curses_menu);
603 if (cur == NULL)
604 return 0;
605 mcur = (struct mitem *) item_userptr(cur);
606 return mcur->tag;
607}
608
609static int curses_item_index(void)
610{
611 return item_index(current_item(curses_menu));
612}
613
614static void *item_data(void)
615{
616 ITEM *cur;
617 struct mitem *mcur;
618
619 cur = current_item(curses_menu);
620 if (!cur)
621 return NULL;
622 mcur = (struct mitem *) item_userptr(cur);
623 return mcur->usrptr;
624
625}
626
627static int item_is_tag(char tag)
628{
629 return item_tag() == tag;
630}
631
632static char filename[PATH_MAX+1];
633static char menu_backtitle[PATH_MAX+128];
634static void set_config_filename(const char *config_filename)
635{
636 snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
637 config_filename, rootmenu.prompt->text);
638
639 snprintf(filename, sizeof(filename), "%s", config_filename);
640}
641
642/* return = 0 means we are successful.
643 * -1 means go on doing what you were doing
644 */
645static int do_exit(void)
646{
647 int res;
648 if (!conf_get_changed()) {
649 global_exit = 1;
650 return 0;
651 }
652 res = btn_dialog(main_window,
653 "Do you wish to save your new configuration?\n"
654 "<ESC> to cancel and resume nconfig.",
655 2,
656 " <save> ",
657 "<don't save>");
658 if (res == KEY_EXIT) {
659 global_exit = 0;
660 return -1;
661 }
662
663 /* if we got here, the user really wants to exit */
664 switch (res) {
665 case 0:
666 res = conf_write(filename);
667 if (res)
668 btn_dialog(
669 main_window,
670 "Error during writing of configuration.\n"
671 "Your configuration changes were NOT saved.",
672 1,
673 "<OK>");
674 conf_write_autoconf(0);
675 break;
676 default:
677 btn_dialog(
678 main_window,
679 "Your configuration changes were NOT saved.",
680 1,
681 "<OK>");
682 break;
683 }
684 global_exit = 1;
685 return 0;
686}
687
688
689static void search_conf(void)
690{
691 struct symbol **sym_arr;
692 struct gstr res;
693 struct gstr title;
694 char *dialog_input;
695 int dres;
696
697 title = str_new();
698 str_printf( &title, "Enter (sub)string or regexp to search for "
699 "(with or without \"%s\")", CONFIG_);
700
701again:
702 dres = dialog_inputbox(main_window,
703 "Search Configuration Parameter",
704 str_get(&title),
705 "", &dialog_input_result, &dialog_input_result_len);
706 switch (dres) {
707 case 0:
708 break;
709 case 1:
710 show_scroll_win(main_window,
711 "Search Configuration", search_help);
712 goto again;
713 default:
714 str_free(&title);
715 return;
716 }
717
718 /* strip the prefix if necessary */
719 dialog_input = dialog_input_result;
720 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
721 dialog_input += strlen(CONFIG_);
722
723 sym_arr = sym_re_search(dialog_input);
724 res = get_relations_str(sym_arr, NULL);
725 free(sym_arr);
726 show_scroll_win(main_window,
727 "Search Results", str_get(&res));
728 str_free(&res);
729 str_free(&title);
730}
731
732
733static void build_conf(struct menu *menu)
734{
735 struct symbol *sym;
736 struct property *prop;
737 struct menu *child;
738 int type, tmp, doint = 2;
739 tristate val;
740 char ch;
741
742 if (!menu || (!show_all_items && !menu_is_visible(menu)))
743 return;
744
745 sym = menu->sym;
746 prop = menu->prompt;
747 if (!sym) {
748 if (prop && menu != current_menu) {
749 const char *prompt = menu_get_prompt(menu);
750 enum prop_type ptype;
751 ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
752 switch (ptype) {
753 case P_MENU:
754 child_count++;
755 if (single_menu_mode) {
756 item_make(menu, 'm',
757 "%s%*c%s",
758 menu->data ? "-->" : "++>",
759 indent + 1, ' ', prompt);
760 } else
761 item_make(menu, 'm',
762 " %*c%s %s",
763 indent + 1, ' ', prompt,
764 menu_is_empty(menu) ? "----" : "--->");
765
766 if (single_menu_mode && menu->data)
767 goto conf_childs;
768 return;
769 case P_COMMENT:
770 if (prompt) {
771 child_count++;
772 item_make(menu, ':',
773 " %*c*** %s ***",
774 indent + 1, ' ',
775 prompt);
776 }
777 break;
778 default:
779 if (prompt) {
780 child_count++;
781 item_make(menu, ':', "---%*c%s",
782 indent + 1, ' ',
783 prompt);
784 }
785 }
786 } else
787 doint = 0;
788 goto conf_childs;
789 }
790
791 type = sym_get_type(sym);
792 if (sym_is_choice(sym)) {
793 struct symbol *def_sym = sym_get_choice_value(sym);
794 struct menu *def_menu = NULL;
795
796 child_count++;
797 for (child = menu->list; child; child = child->next) {
798 if (menu_is_visible(child) && child->sym == def_sym)
799 def_menu = child;
800 }
801
802 val = sym_get_tristate_value(sym);
803 if (sym_is_changeable(sym)) {
804 switch (type) {
805 case S_BOOLEAN:
806 item_make(menu, 't', "[%c]",
807 val == no ? ' ' : '*');
808 break;
809 case S_TRISTATE:
810 switch (val) {
811 case yes:
812 ch = '*';
813 break;
814 case mod:
815 ch = 'M';
816 break;
817 default:
818 ch = ' ';
819 break;
820 }
821 item_make(menu, 't', "<%c>", ch);
822 break;
823 }
824 } else {
825 item_make(menu, def_menu ? 't' : ':', " ");
826 }
827
828 item_add_str("%*c%s", indent + 1,
829 ' ', menu_get_prompt(menu));
830 if (val == yes) {
831 if (def_menu) {
832 item_add_str(" (%s)",
833 menu_get_prompt(def_menu));
834 item_add_str(" --->");
835 if (def_menu->list) {
836 indent += 2;
837 build_conf(def_menu);
838 indent -= 2;
839 }
840 }
841 return;
842 }
843 } else {
844 if (menu == current_menu) {
845 item_make(menu, ':',
846 "---%*c%s", indent + 1,
847 ' ', menu_get_prompt(menu));
848 goto conf_childs;
849 }
850 child_count++;
851 val = sym_get_tristate_value(sym);
852 if (sym_is_choice_value(sym) && val == yes) {
853 item_make(menu, ':', " ");
854 } else {
855 switch (type) {
856 case S_BOOLEAN:
857 if (sym_is_changeable(sym))
858 item_make(menu, 't', "[%c]",
859 val == no ? ' ' : '*');
860 else
861 item_make(menu, 't', "-%c-",
862 val == no ? ' ' : '*');
863 break;
864 case S_TRISTATE:
865 switch (val) {
866 case yes:
867 ch = '*';
868 break;
869 case mod:
870 ch = 'M';
871 break;
872 default:
873 ch = ' ';
874 break;
875 }
876 if (sym_is_changeable(sym)) {
877 if (sym->rev_dep.tri == mod)
878 item_make(menu,
879 't', "{%c}", ch);
880 else
881 item_make(menu,
882 't', "<%c>", ch);
883 } else
884 item_make(menu, 't', "-%c-", ch);
885 break;
886 default:
887 tmp = 2 + strlen(sym_get_string_value(sym));
888 item_make(menu, 's', " (%s)",
889 sym_get_string_value(sym));
890 tmp = indent - tmp + 4;
891 if (tmp < 0)
892 tmp = 0;
893 item_add_str("%*c%s%s", tmp, ' ',
894 menu_get_prompt(menu),
895 (sym_has_value(sym) ||
896 !sym_is_changeable(sym)) ? "" :
897 " (NEW)");
898 goto conf_childs;
899 }
900 }
901 item_add_str("%*c%s%s", indent + 1, ' ',
902 menu_get_prompt(menu),
903 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
904 "" : " (NEW)");
905 if (menu->prompt && menu->prompt->type == P_MENU) {
906 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
907 return;
908 }
909 }
910
911conf_childs:
912 indent += doint;
913 for (child = menu->list; child; child = child->next)
914 build_conf(child);
915 indent -= doint;
916}
917
918static void reset_menu(void)
919{
920 unpost_menu(curses_menu);
921 clean_items();
922}
923
924/* adjust the menu to show this item.
925 * prefer not to scroll the menu if possible*/
926static void center_item(int selected_index, int *last_top_row)
927{
928 int toprow;
929
930 set_top_row(curses_menu, *last_top_row);
931 toprow = top_row(curses_menu);
932 if (selected_index < toprow ||
933 selected_index >= toprow+mwin_max_lines) {
934 toprow = max(selected_index-mwin_max_lines/2, 0);
935 if (toprow >= item_count(curses_menu)-mwin_max_lines)
936 toprow = item_count(curses_menu)-mwin_max_lines;
937 set_top_row(curses_menu, toprow);
938 }
939 set_current_item(curses_menu,
940 curses_menu_items[selected_index]);
941 *last_top_row = toprow;
942 post_menu(curses_menu);
943 refresh_all_windows(main_window);
944}
945
946/* this function assumes reset_menu has been called before */
947static void show_menu(const char *prompt, const char *instructions,
948 int selected_index, int *last_top_row)
949{
950 int maxx, maxy;
951 WINDOW *menu_window;
952
953 current_instructions = instructions;
954
955 clear();
956 print_in_middle(stdscr, 1, getmaxx(stdscr),
957 menu_backtitle,
958 attr_main_heading);
959
960 wattrset(main_window, attr_main_menu_box);
961 box(main_window, 0, 0);
962 wattrset(main_window, attr_main_menu_heading);
963 mvwprintw(main_window, 0, 3, " %s ", prompt);
964 wattrset(main_window, attr_normal);
965
966 set_menu_items(curses_menu, curses_menu_items);
967
968 /* position the menu at the middle of the screen */
969 scale_menu(curses_menu, &maxy, &maxx);
970 maxx = min(maxx, mwin_max_cols-2);
971 maxy = mwin_max_lines;
972 menu_window = derwin(main_window,
973 maxy,
974 maxx,
975 2,
976 (mwin_max_cols-maxx)/2);
977 keypad(menu_window, TRUE);
978 set_menu_win(curses_menu, menu_window);
979 set_menu_sub(curses_menu, menu_window);
980
981 /* must reassert this after changing items, otherwise returns to a
982 * default of 16
983 */
984 set_menu_format(curses_menu, maxy, 1);
985 center_item(selected_index, last_top_row);
986 set_menu_format(curses_menu, maxy, 1);
987
988 print_function_line();
989
990 /* Post the menu */
991 post_menu(curses_menu);
992 refresh_all_windows(main_window);
993}
994
995static void adj_match_dir(match_f *match_direction)
996{
997 if (*match_direction == FIND_NEXT_MATCH_DOWN)
998 *match_direction =
999 MATCH_TINKER_PATTERN_DOWN;
1000 else if (*match_direction == FIND_NEXT_MATCH_UP)
1001 *match_direction =
1002 MATCH_TINKER_PATTERN_UP;
1003 /* else, do no change.. */
1004}
1005
1006struct match_state
1007{
1008 int in_search;
1009 match_f match_direction;
1010 char pattern[256];
1011};
1012
1013/* Return 0 means I have handled the key. In such a case, ans should hold the
1014 * item to center, or -1 otherwise.
1015 * Else return -1 .
1016 */
1017static int do_match(int key, struct match_state *state, int *ans)
1018{
1019 char c = (char) key;
1020 int terminate_search = 0;
1021 *ans = -1;
1022 if (key == '/' || (state->in_search && key == 27)) {
1023 move(0, 0);
1024 refresh();
1025 clrtoeol();
1026 state->in_search = 1-state->in_search;
1027 bzero(state->pattern, sizeof(state->pattern));
1028 state->match_direction = MATCH_TINKER_PATTERN_DOWN;
1029 return 0;
1030 } else if (!state->in_search)
1031 return 1;
1032
1033 if (isalnum(c) || isgraph(c) || c == ' ') {
1034 state->pattern[strlen(state->pattern)] = c;
1035 state->pattern[strlen(state->pattern)] = '\0';
1036 adj_match_dir(&state->match_direction);
1037 *ans = get_mext_match(state->pattern,
1038 state->match_direction);
1039 } else if (key == KEY_DOWN) {
1040 state->match_direction = FIND_NEXT_MATCH_DOWN;
1041 *ans = get_mext_match(state->pattern,
1042 state->match_direction);
1043 } else if (key == KEY_UP) {
1044 state->match_direction = FIND_NEXT_MATCH_UP;
1045 *ans = get_mext_match(state->pattern,
1046 state->match_direction);
1047 } else if (key == KEY_BACKSPACE || key == 8 || key == 127) {
1048 state->pattern[strlen(state->pattern)-1] = '\0';
1049 adj_match_dir(&state->match_direction);
1050 } else
1051 terminate_search = 1;
1052
1053 if (terminate_search) {
1054 state->in_search = 0;
1055 bzero(state->pattern, sizeof(state->pattern));
1056 move(0, 0);
1057 refresh();
1058 clrtoeol();
1059 return -1;
1060 }
1061 return 0;
1062}
1063
1064static void conf(struct menu *menu)
1065{
1066 struct menu *submenu = NULL;
1067 struct symbol *sym;
1068 int res;
1069 int current_index = 0;
1070 int last_top_row = 0;
1071 struct match_state match_state = {
1072 .in_search = 0,
1073 .match_direction = MATCH_TINKER_PATTERN_DOWN,
1074 .pattern = "",
1075 };
1076
1077 while (!global_exit) {
1078 reset_menu();
1079 current_menu = menu;
1080 build_conf(menu);
1081 if (!child_count)
1082 break;
1083
1084 show_menu(menu_get_prompt(menu), menu_instructions,
1085 current_index, &last_top_row);
1086 keypad((menu_win(curses_menu)), TRUE);
1087 while (!global_exit) {
1088 if (match_state.in_search) {
1089 mvprintw(0, 0,
1090 "searching: %s", match_state.pattern);
1091 clrtoeol();
1092 }
1093 refresh_all_windows(main_window);
1094 res = wgetch(menu_win(curses_menu));
1095 if (!res)
1096 break;
1097 if (do_match(res, &match_state, ¤t_index) == 0) {
1098 if (current_index != -1)
1099 center_item(current_index,
1100 &last_top_row);
1101 continue;
1102 }
1103 if (process_special_keys(&res,
1104 (struct menu *) item_data()))
1105 break;
1106 switch (res) {
1107 case KEY_DOWN:
1108 menu_driver(curses_menu, REQ_DOWN_ITEM);
1109 break;
1110 case KEY_UP:
1111 menu_driver(curses_menu, REQ_UP_ITEM);
1112 break;
1113 case KEY_NPAGE:
1114 menu_driver(curses_menu, REQ_SCR_DPAGE);
1115 break;
1116 case KEY_PPAGE:
1117 menu_driver(curses_menu, REQ_SCR_UPAGE);
1118 break;
1119 case KEY_HOME:
1120 menu_driver(curses_menu, REQ_FIRST_ITEM);
1121 break;
1122 case KEY_END:
1123 menu_driver(curses_menu, REQ_LAST_ITEM);
1124 break;
1125 case 'h':
1126 case '?':
1127 show_help((struct menu *) item_data());
1128 break;
1129 }
1130 if (res == 10 || res == 27 ||
1131 res == 32 || res == 'n' || res == 'y' ||
1132 res == KEY_LEFT || res == KEY_RIGHT ||
1133 res == 'm')
1134 break;
1135 refresh_all_windows(main_window);
1136 }
1137
1138 refresh_all_windows(main_window);
1139 /* if ESC or left*/
1140 if (res == 27 || (menu != &rootmenu && res == KEY_LEFT))
1141 break;
1142
1143 /* remember location in the menu */
1144 last_top_row = top_row(curses_menu);
1145 current_index = curses_item_index();
1146
1147 if (!item_tag())
1148 continue;
1149
1150 submenu = (struct menu *) item_data();
1151 if (!submenu || !menu_is_visible(submenu))
1152 continue;
1153 sym = submenu->sym;
1154
1155 switch (res) {
1156 case ' ':
1157 if (item_is_tag('t'))
1158 sym_toggle_tristate_value(sym);
1159 else if (item_is_tag('m'))
1160 conf(submenu);
1161 break;
1162 case KEY_RIGHT:
1163 case 10: /* ENTER WAS PRESSED */
1164 switch (item_tag()) {
1165 case 'm':
1166 if (single_menu_mode)
1167 submenu->data =
1168 (void *) (long) !submenu->data;
1169 else
1170 conf(submenu);
1171 break;
1172 case 't':
1173 if (sym_is_choice(sym) &&
1174 sym_get_tristate_value(sym) == yes)
1175 conf_choice(submenu);
1176 else if (submenu->prompt &&
1177 submenu->prompt->type == P_MENU)
1178 conf(submenu);
1179 else if (res == 10)
1180 sym_toggle_tristate_value(sym);
1181 break;
1182 case 's':
1183 conf_string(submenu);
1184 break;
1185 }
1186 break;
1187 case 'y':
1188 if (item_is_tag('t')) {
1189 if (sym_set_tristate_value(sym, yes))
1190 break;
1191 if (sym_set_tristate_value(sym, mod))
1192 btn_dialog(main_window, setmod_text, 0);
1193 }
1194 break;
1195 case 'n':
1196 if (item_is_tag('t'))
1197 sym_set_tristate_value(sym, no);
1198 break;
1199 case 'm':
1200 if (item_is_tag('t'))
1201 sym_set_tristate_value(sym, mod);
1202 break;
1203 }
1204 }
1205}
1206
1207static void conf_message_callback(const char *s)
1208{
1209 btn_dialog(main_window, s, 1, "<OK>");
1210}
1211
1212static void show_help(struct menu *menu)
1213{
1214 struct gstr help;
1215
1216 if (!menu)
1217 return;
1218
1219 help = str_new();
1220 menu_get_ext_help(menu, &help);
1221 show_scroll_win(main_window, menu_get_prompt(menu), str_get(&help));
1222 str_free(&help);
1223}
1224
1225static void conf_choice(struct menu *menu)
1226{
1227 const char *prompt = menu_get_prompt(menu);
1228 struct menu *child = NULL;
1229 struct symbol *active;
1230 int selected_index = 0;
1231 int last_top_row = 0;
1232 int res, i = 0;
1233 struct match_state match_state = {
1234 .in_search = 0,
1235 .match_direction = MATCH_TINKER_PATTERN_DOWN,
1236 .pattern = "",
1237 };
1238
1239 active = sym_get_choice_value(menu->sym);
1240 /* this is mostly duplicated from the conf() function. */
1241 while (!global_exit) {
1242 reset_menu();
1243
1244 for (i = 0, child = menu->list; child; child = child->next) {
1245 if (!show_all_items && !menu_is_visible(child))
1246 continue;
1247
1248 if (child->sym == sym_get_choice_value(menu->sym))
1249 item_make(child, ':', "<X> %s",
1250 menu_get_prompt(child));
1251 else if (child->sym)
1252 item_make(child, ':', " %s",
1253 menu_get_prompt(child));
1254 else
1255 item_make(child, ':', "*** %s ***",
1256 menu_get_prompt(child));
1257
1258 if (child->sym == active){
1259 last_top_row = top_row(curses_menu);
1260 selected_index = i;
1261 }
1262 i++;
1263 }
1264 show_menu(prompt ? prompt : "Choice Menu",
1265 radiolist_instructions,
1266 selected_index,
1267 &last_top_row);
1268 while (!global_exit) {
1269 if (match_state.in_search) {
1270 mvprintw(0, 0, "searching: %s",
1271 match_state.pattern);
1272 clrtoeol();
1273 }
1274 refresh_all_windows(main_window);
1275 res = wgetch(menu_win(curses_menu));
1276 if (!res)
1277 break;
1278 if (do_match(res, &match_state, &selected_index) == 0) {
1279 if (selected_index != -1)
1280 center_item(selected_index,
1281 &last_top_row);
1282 continue;
1283 }
1284 if (process_special_keys(
1285 &res,
1286 (struct menu *) item_data()))
1287 break;
1288 switch (res) {
1289 case KEY_DOWN:
1290 menu_driver(curses_menu, REQ_DOWN_ITEM);
1291 break;
1292 case KEY_UP:
1293 menu_driver(curses_menu, REQ_UP_ITEM);
1294 break;
1295 case KEY_NPAGE:
1296 menu_driver(curses_menu, REQ_SCR_DPAGE);
1297 break;
1298 case KEY_PPAGE:
1299 menu_driver(curses_menu, REQ_SCR_UPAGE);
1300 break;
1301 case KEY_HOME:
1302 menu_driver(curses_menu, REQ_FIRST_ITEM);
1303 break;
1304 case KEY_END:
1305 menu_driver(curses_menu, REQ_LAST_ITEM);
1306 break;
1307 case 'h':
1308 case '?':
1309 show_help((struct menu *) item_data());
1310 break;
1311 }
1312 if (res == 10 || res == 27 || res == ' ' ||
1313 res == KEY_LEFT){
1314 break;
1315 }
1316 refresh_all_windows(main_window);
1317 }
1318 /* if ESC or left */
1319 if (res == 27 || res == KEY_LEFT)
1320 break;
1321
1322 child = item_data();
1323 if (!child || !menu_is_visible(child) || !child->sym)
1324 continue;
1325 switch (res) {
1326 case ' ':
1327 case 10:
1328 case KEY_RIGHT:
1329 sym_set_tristate_value(child->sym, yes);
1330 return;
1331 case 'h':
1332 case '?':
1333 show_help(child);
1334 active = child->sym;
1335 break;
1336 case KEY_EXIT:
1337 return;
1338 }
1339 }
1340}
1341
1342static void conf_string(struct menu *menu)
1343{
1344 const char *prompt = menu_get_prompt(menu);
1345
1346 while (1) {
1347 int res;
1348 const char *heading;
1349
1350 switch (sym_get_type(menu->sym)) {
1351 case S_INT:
1352 heading = inputbox_instructions_int;
1353 break;
1354 case S_HEX:
1355 heading = inputbox_instructions_hex;
1356 break;
1357 case S_STRING:
1358 heading = inputbox_instructions_string;
1359 break;
1360 default:
1361 heading = "Internal nconf error!";
1362 }
1363 res = dialog_inputbox(main_window,
1364 prompt ? prompt : "Main Menu",
1365 heading,
1366 sym_get_string_value(menu->sym),
1367 &dialog_input_result,
1368 &dialog_input_result_len);
1369 switch (res) {
1370 case 0:
1371 if (sym_set_string_value(menu->sym,
1372 dialog_input_result))
1373 return;
1374 btn_dialog(main_window,
1375 "You have made an invalid entry.", 0);
1376 break;
1377 case 1:
1378 show_help(menu);
1379 break;
1380 case KEY_EXIT:
1381 return;
1382 }
1383 }
1384}
1385
1386static void conf_load(void)
1387{
1388 while (1) {
1389 int res;
1390 res = dialog_inputbox(main_window,
1391 NULL, load_config_text,
1392 filename,
1393 &dialog_input_result,
1394 &dialog_input_result_len);
1395 switch (res) {
1396 case 0:
1397 if (!dialog_input_result[0])
1398 return;
1399 if (!conf_read(dialog_input_result)) {
1400 set_config_filename(dialog_input_result);
1401 conf_set_changed(true);
1402 return;
1403 }
1404 btn_dialog(main_window, "File does not exist!", 0);
1405 break;
1406 case 1:
1407 show_scroll_win(main_window,
1408 "Load Alternate Configuration",
1409 load_config_help);
1410 break;
1411 case KEY_EXIT:
1412 return;
1413 }
1414 }
1415}
1416
1417static void conf_save(void)
1418{
1419 while (1) {
1420 int res;
1421 res = dialog_inputbox(main_window,
1422 NULL, save_config_text,
1423 filename,
1424 &dialog_input_result,
1425 &dialog_input_result_len);
1426 switch (res) {
1427 case 0:
1428 if (!dialog_input_result[0])
1429 return;
1430 res = conf_write(dialog_input_result);
1431 if (!res) {
1432 set_config_filename(dialog_input_result);
1433 return;
1434 }
1435 btn_dialog(main_window, "Can't create file!",
1436 1, "<OK>");
1437 break;
1438 case 1:
1439 show_scroll_win(main_window,
1440 "Save Alternate Configuration",
1441 save_config_help);
1442 break;
1443 case KEY_EXIT:
1444 return;
1445 }
1446 }
1447}
1448
1449static void setup_windows(void)
1450{
1451 int lines, columns;
1452
1453 getmaxyx(stdscr, lines, columns);
1454
1455 if (main_window != NULL)
1456 delwin(main_window);
1457
1458 /* set up the menu and menu window */
1459 main_window = newwin(lines-2, columns-2, 2, 1);
1460 keypad(main_window, TRUE);
1461 mwin_max_lines = lines-7;
1462 mwin_max_cols = columns-6;
1463
1464 /* panels order is from bottom to top */
1465 new_panel(main_window);
1466}
1467
1468int main(int ac, char **av)
1469{
1470 int lines, columns;
1471 char *mode;
1472
1473 if (ac > 1 && strcmp(av[1], "-s") == 0) {
1474 /* Silence conf_read() until the real callback is set up */
1475 conf_set_message_callback(NULL);
1476 av++;
1477 }
1478 conf_parse(av[1]);
1479 conf_read(NULL);
1480
1481 mode = getenv("NCONFIG_MODE");
1482 if (mode) {
1483 if (!strcasecmp(mode, "single_menu"))
1484 single_menu_mode = 1;
1485 }
1486
1487 /* Initialize curses */
1488 initscr();
1489 /* set color theme */
1490 set_colors();
1491
1492 cbreak();
1493 noecho();
1494 keypad(stdscr, TRUE);
1495 curs_set(0);
1496
1497 getmaxyx(stdscr, lines, columns);
1498 if (columns < 75 || lines < 20) {
1499 endwin();
1500 printf("Your terminal should have at "
1501 "least 20 lines and 75 columns\n");
1502 return 1;
1503 }
1504
1505 notimeout(stdscr, FALSE);
1506#if NCURSES_REENTRANT
1507 set_escdelay(1);
1508#else
1509 ESCDELAY = 1;
1510#endif
1511
1512 /* set btns menu */
1513 curses_menu = new_menu(curses_menu_items);
1514 menu_opts_off(curses_menu, O_SHOWDESC);
1515 menu_opts_on(curses_menu, O_SHOWMATCH);
1516 menu_opts_on(curses_menu, O_ONEVALUE);
1517 menu_opts_on(curses_menu, O_NONCYCLIC);
1518 menu_opts_on(curses_menu, O_IGNORECASE);
1519 set_menu_mark(curses_menu, " ");
1520 set_menu_fore(curses_menu, attr_main_menu_fore);
1521 set_menu_back(curses_menu, attr_main_menu_back);
1522 set_menu_grey(curses_menu, attr_main_menu_grey);
1523
1524 set_config_filename(conf_get_configname());
1525 setup_windows();
1526
1527 /* check for KEY_FUNC(1) */
1528 if (has_key(KEY_F(1)) == FALSE) {
1529 show_scroll_win(main_window,
1530 "Instructions",
1531 menu_no_f_instructions);
1532 }
1533
1534 conf_set_message_callback(conf_message_callback);
1535 /* do the work */
1536 while (!global_exit) {
1537 conf(&rootmenu);
1538 if (!global_exit && do_exit() == 0)
1539 break;
1540 }
1541 /* ok, we are done */
1542 unpost_menu(curses_menu);
1543 free_menu(curses_menu);
1544 delwin(main_window);
1545 clear();
1546 refresh();
1547 endwin();
1548 return 0;
1549}
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com>
4 *
5 * Derived from menuconfig.
6 */
7#ifndef _GNU_SOURCE
8#define _GNU_SOURCE
9#endif
10#include <string.h>
11#include <strings.h>
12#include <stdlib.h>
13
14#include <list.h>
15#include <xalloc.h>
16#include "lkc.h"
17#include "mnconf-common.h"
18#include "nconf.h"
19#include <ctype.h>
20
21static const char nconf_global_help[] =
22"Help windows\n"
23"------------\n"
24"o Global help: Unless in a data entry window, pressing <F1> will give \n"
25" you the global help window, which you are just reading.\n"
26"\n"
27"o A short version of the global help is available by pressing <F3>.\n"
28"\n"
29"o Local help: To get help related to the current menu entry, use any\n"
30" of <?> <h>, or if in a data entry window then press <F1>.\n"
31"\n"
32"\n"
33"Menu entries\n"
34"------------\n"
35"This interface lets you select features and parameters for the kernel\n"
36"build. Kernel features can either be built-in, modularized, or removed.\n"
37"Parameters must be entered as text or decimal or hexadecimal numbers.\n"
38"\n"
39"Menu entries beginning with following braces represent features that\n"
40" [ ] can be built in or removed\n"
41" < > can be built in, modularized or removed\n"
42" { } can be built in or modularized, are selected by another feature\n"
43" - - are selected by another feature\n"
44" XXX cannot be selected. Symbol Info <F2> tells you why.\n"
45"*, M or whitespace inside braces means to build in, build as a module\n"
46"or to exclude the feature respectively.\n"
47"\n"
48"To change any of these features, highlight it with the movement keys\n"
49"listed below and press <y> to build it in, <m> to make it a module or\n"
50"<n> to remove it. You may press the <Space> key to cycle through the\n"
51"available options.\n"
52"\n"
53"A trailing \"--->\" designates a submenu, a trailing \"----\" an\n"
54"empty submenu.\n"
55"\n"
56"Menu navigation keys\n"
57"----------------------------------------------------------------------\n"
58"Linewise up <Up> <k>\n"
59"Linewise down <Down> <j>\n"
60"Pagewise up <Page Up>\n"
61"Pagewise down <Page Down>\n"
62"First entry <Home>\n"
63"Last entry <End>\n"
64"Enter a submenu <Right> <Enter>\n"
65"Go back to parent menu <Left> <Esc> <F5>\n"
66"Close a help window <Enter> <Esc> <F5>\n"
67"Close entry window, apply <Enter>\n"
68"Close entry window, forget <Esc> <F5>\n"
69"Start incremental, case-insensitive search for STRING in menu entries,\n"
70" no regex support, STRING is displayed in upper left corner\n"
71" </>STRING\n"
72" Remove last character <Backspace>\n"
73" Jump to next hit <Down>\n"
74" Jump to previous hit <Up>\n"
75"Exit menu search mode </> <Esc>\n"
76"Search for configuration variables with or without leading CONFIG_\n"
77" <F8>RegExpr<Enter>\n"
78"Verbose search help <F8><F1>\n"
79"----------------------------------------------------------------------\n"
80"\n"
81"Unless in a data entry window, key <1> may be used instead of <F1>,\n"
82"<2> instead of <F2>, etc.\n"
83"\n"
84"\n"
85"Radiolist (Choice list)\n"
86"-----------------------\n"
87"Use the movement keys listed above to select the option you wish to set\n"
88"and press <Space>.\n"
89"\n"
90"\n"
91"Data entry\n"
92"----------\n"
93"Enter the requested information and press <Enter>. Hexadecimal values\n"
94"may be entered without the \"0x\" prefix.\n"
95"\n"
96"\n"
97"Text Box (Help Window)\n"
98"----------------------\n"
99"Use movement keys as listed in table above.\n"
100"\n"
101"Press any of <Enter> <Esc> <q> <F5> <F9> to exit.\n"
102"\n"
103"\n"
104"Alternate configuration files\n"
105"-----------------------------\n"
106"nconfig supports switching between different configurations.\n"
107"Press <F6> to save your current configuration. Press <F7> and enter\n"
108"a file name to load a previously saved configuration.\n"
109"\n"
110"\n"
111"Terminal configuration\n"
112"----------------------\n"
113"If you use nconfig in a xterm window, make sure your TERM environment\n"
114"variable specifies a terminal configuration which supports at least\n"
115"16 colors. Otherwise nconfig will look rather bad.\n"
116"\n"
117"If the \"stty size\" command reports the current terminalsize correctly,\n"
118"nconfig will adapt to sizes larger than the traditional 80x25 \"standard\"\n"
119"and display longer menus properly.\n"
120"\n"
121"\n"
122"Single menu mode\n"
123"----------------\n"
124"If you prefer to have all of the menu entries listed in a single menu,\n"
125"rather than the default multimenu hierarchy, run nconfig with\n"
126"NCONFIG_MODE environment variable set to single_menu. Example:\n"
127"\n"
128"make NCONFIG_MODE=single_menu nconfig\n"
129"\n"
130"<Enter> will then unfold the appropriate category, or fold it if it\n"
131"is already unfolded. Folded menu entries will be designated by a\n"
132"leading \"++>\" and unfolded entries by a leading \"-->\".\n"
133"\n"
134"Note that this mode can eventually be a little more CPU expensive than\n"
135"the default mode, especially with a larger number of unfolded submenus.\n"
136"\n",
137menu_no_f_instructions[] =
138"Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
139"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
140"\n"
141"Use the following keys to navigate the menus:\n"
142"Move up or down with <Up> and <Down>.\n"
143"Enter a submenu with <Enter> or <Right>.\n"
144"Exit a submenu to its parent menu with <Esc> or <Left>.\n"
145"Pressing <y> includes, <n> excludes, <m> modularizes features.\n"
146"Pressing <Space> cycles through the available options.\n"
147"To search for menu entries press </>.\n"
148"<Esc> always leaves the current window.\n"
149"\n"
150"You do not have function keys support.\n"
151"Press <1> instead of <F1>, <2> instead of <F2>, etc.\n"
152"For verbose global help use key <1>.\n"
153"For help related to the current menu entry press <?> or <h>.\n",
154menu_instructions[] =
155"Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
156"Submenus are designated by a trailing \"--->\", empty ones by \"----\".\n"
157"\n"
158"Use the following keys to navigate the menus:\n"
159"Move up or down with <Up> or <Down>.\n"
160"Enter a submenu with <Enter> or <Right>.\n"
161"Exit a submenu to its parent menu with <Esc> or <Left>.\n"
162"Pressing <y> includes, <n> excludes, <m> modularizes features.\n"
163"Pressing <Space> cycles through the available options.\n"
164"To search for menu entries press </>.\n"
165"<Esc> always leaves the current window.\n"
166"\n"
167"Pressing <1> may be used instead of <F1>, <2> instead of <F2>, etc.\n"
168"For verbose global help press <F1>.\n"
169"For help related to the current menu entry press <?> or <h>.\n",
170radiolist_instructions[] =
171"Press <Up>, <Down>, <Home> or <End> to navigate a radiolist, select\n"
172"with <Space>.\n"
173"For help related to the current entry press <?> or <h>.\n"
174"For global help press <F1>.\n",
175inputbox_instructions_int[] =
176"Please enter a decimal value.\n"
177"Fractions will not be accepted.\n"
178"Press <Enter> to apply, <Esc> to cancel.",
179inputbox_instructions_hex[] =
180"Please enter a hexadecimal value.\n"
181"Press <Enter> to apply, <Esc> to cancel.",
182inputbox_instructions_string[] =
183"Please enter a string value.\n"
184"Press <Enter> to apply, <Esc> to cancel.",
185setmod_text[] =
186"This feature depends on another feature which has been configured as a\n"
187"module. As a result, the current feature will be built as a module too.",
188load_config_text[] =
189"Enter the name of the configuration file you wish to load.\n"
190"Accept the name shown to restore the configuration you last\n"
191"retrieved. Leave empty to abort.",
192load_config_help[] =
193"For various reasons, one may wish to keep several different\n"
194"configurations available on a single machine.\n"
195"\n"
196"If you have saved a previous configuration in a file other than the\n"
197"default one, entering its name here will allow you to load and modify\n"
198"that configuration.\n"
199"\n"
200"Leave empty to abort.\n",
201save_config_text[] =
202"Enter a filename to which this configuration should be saved\n"
203"as an alternate. Leave empty to abort.",
204save_config_help[] =
205"For various reasons, one may wish to keep several different\n"
206"configurations available on a single machine.\n"
207"\n"
208"Entering a file name here will allow you to later retrieve, modify\n"
209"and use the current configuration as an alternate to whatever\n"
210"configuration options you have selected at that time.\n"
211"\n"
212"Leave empty to abort.\n",
213search_help[] =
214"Search for symbols (configuration variable names CONFIG_*) and display\n"
215"their relations. Regular expressions are supported.\n"
216"Example: Search for \"^FOO\".\n"
217"Result:\n"
218"-----------------------------------------------------------------\n"
219"Symbol: FOO [ = m]\n"
220"Prompt: Foo bus is used to drive the bar HW\n"
221"Defined at drivers/pci/Kconfig:47\n"
222"Depends on: X86_LOCAL_APIC && X86_IO_APIC\n"
223"Location:\n"
224" -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
225" -> PCI support (PCI [ = y])\n"
226"(1) -> PCI access mode (<choice> [ = y])\n"
227"Selects: LIBCRC32\n"
228"Selected by: BAR\n"
229"-----------------------------------------------------------------\n"
230"o The line 'Prompt:' shows the text displayed for this symbol in\n"
231" the menu hierarchy.\n"
232"o The 'Defined at' line tells at what file / line number the symbol is\n"
233" defined.\n"
234"o The 'Depends on:' line lists symbols that need to be defined for\n"
235" this symbol to be visible and selectable in the menu.\n"
236"o The 'Location:' lines tell, where in the menu structure this symbol\n"
237" is located.\n"
238" A location followed by a [ = y] indicates that this is\n"
239" a selectable menu item, and the current value is displayed inside\n"
240" brackets.\n"
241" Press the key in the (#) prefix to jump directly to that\n"
242" location. You will be returned to the current search results\n"
243" after exiting this new menu.\n"
244"o The 'Selects:' line tells, what symbol will be automatically selected\n"
245" if this symbol is selected (y or m).\n"
246"o The 'Selected by' line tells what symbol has selected this symbol.\n"
247"\n"
248"Only relevant lines are shown.\n"
249"\n\n"
250"Search examples:\n"
251"USB => find all symbols containing USB\n"
252"^USB => find all symbols starting with USB\n"
253"USB$ => find all symbols ending with USB\n"
254"\n";
255
256struct mitem {
257 char str[256];
258 char tag;
259 void *usrptr;
260 int is_visible;
261};
262
263#define MAX_MENU_ITEMS 4096
264static int show_all_items;
265static int indent;
266static struct menu *current_menu;
267static int child_count;
268static int single_menu_mode;
269/* the window in which all information appears */
270static WINDOW *main_window;
271/* the largest size of the menu window */
272static int mwin_max_lines;
273static int mwin_max_cols;
274/* the window in which we show option buttons */
275static MENU *curses_menu;
276static ITEM *curses_menu_items[MAX_MENU_ITEMS];
277static struct mitem k_menu_items[MAX_MENU_ITEMS];
278static unsigned int items_num;
279static int global_exit;
280/* the currently selected button */
281static const char *current_instructions = menu_instructions;
282
283static char *dialog_input_result;
284static int dialog_input_result_len;
285
286static void selected_conf(struct menu *menu, struct menu *active_menu);
287static void conf(struct menu *menu);
288static void conf_choice(struct menu *menu);
289static void conf_string(struct menu *menu);
290static void conf_load(void);
291static void conf_save(void);
292static void show_help(struct menu *menu);
293static int do_exit(void);
294static void setup_windows(void);
295static void search_conf(void);
296
297typedef void (*function_key_handler_t)(int *key, struct menu *menu);
298static void handle_f1(int *key, struct menu *current_item);
299static void handle_f2(int *key, struct menu *current_item);
300static void handle_f3(int *key, struct menu *current_item);
301static void handle_f4(int *key, struct menu *current_item);
302static void handle_f5(int *key, struct menu *current_item);
303static void handle_f6(int *key, struct menu *current_item);
304static void handle_f7(int *key, struct menu *current_item);
305static void handle_f8(int *key, struct menu *current_item);
306static void handle_f9(int *key, struct menu *current_item);
307
308struct function_keys {
309 const char *key_str;
310 const char *func;
311 function_key key;
312 function_key_handler_t handler;
313};
314
315static const int function_keys_num = 9;
316static struct function_keys function_keys[] = {
317 {
318 .key_str = "F1",
319 .func = "Help",
320 .key = F_HELP,
321 .handler = handle_f1,
322 },
323 {
324 .key_str = "F2",
325 .func = "SymInfo",
326 .key = F_SYMBOL,
327 .handler = handle_f2,
328 },
329 {
330 .key_str = "F3",
331 .func = "Help 2",
332 .key = F_INSTS,
333 .handler = handle_f3,
334 },
335 {
336 .key_str = "F4",
337 .func = "ShowAll",
338 .key = F_CONF,
339 .handler = handle_f4,
340 },
341 {
342 .key_str = "F5",
343 .func = "Back",
344 .key = F_BACK,
345 .handler = handle_f5,
346 },
347 {
348 .key_str = "F6",
349 .func = "Save",
350 .key = F_SAVE,
351 .handler = handle_f6,
352 },
353 {
354 .key_str = "F7",
355 .func = "Load",
356 .key = F_LOAD,
357 .handler = handle_f7,
358 },
359 {
360 .key_str = "F8",
361 .func = "SymSearch",
362 .key = F_SEARCH,
363 .handler = handle_f8,
364 },
365 {
366 .key_str = "F9",
367 .func = "Exit",
368 .key = F_EXIT,
369 .handler = handle_f9,
370 },
371};
372
373static void print_function_line(void)
374{
375 int i;
376 int offset = 1;
377 const int skip = 1;
378 int lines = getmaxy(stdscr);
379
380 for (i = 0; i < function_keys_num; i++) {
381 wattrset(main_window, attr_function_highlight);
382 mvwprintw(main_window, lines-3, offset,
383 "%s",
384 function_keys[i].key_str);
385 wattrset(main_window, attr_function_text);
386 offset += strlen(function_keys[i].key_str);
387 mvwprintw(main_window, lines-3,
388 offset, "%s",
389 function_keys[i].func);
390 offset += strlen(function_keys[i].func) + skip;
391 }
392 wattrset(main_window, attr_normal);
393}
394
395/* help */
396static void handle_f1(int *key, struct menu *current_item)
397{
398 show_scroll_win(main_window,
399 "Global help", nconf_global_help);
400 return;
401}
402
403/* symbole help */
404static void handle_f2(int *key, struct menu *current_item)
405{
406 show_help(current_item);
407 return;
408}
409
410/* instructions */
411static void handle_f3(int *key, struct menu *current_item)
412{
413 show_scroll_win(main_window,
414 "Short help",
415 current_instructions);
416 return;
417}
418
419/* config */
420static void handle_f4(int *key, struct menu *current_item)
421{
422 int res = btn_dialog(main_window,
423 "Show all symbols?",
424 2,
425 " <Show All> ",
426 "<Don't show all>");
427 if (res == 0)
428 show_all_items = 1;
429 else if (res == 1)
430 show_all_items = 0;
431
432 return;
433}
434
435/* back */
436static void handle_f5(int *key, struct menu *current_item)
437{
438 *key = KEY_LEFT;
439 return;
440}
441
442/* save */
443static void handle_f6(int *key, struct menu *current_item)
444{
445 conf_save();
446 return;
447}
448
449/* load */
450static void handle_f7(int *key, struct menu *current_item)
451{
452 conf_load();
453 return;
454}
455
456/* search */
457static void handle_f8(int *key, struct menu *current_item)
458{
459 search_conf();
460 return;
461}
462
463/* exit */
464static void handle_f9(int *key, struct menu *current_item)
465{
466 do_exit();
467 return;
468}
469
470/* return != 0 to indicate the key was handled */
471static int process_special_keys(int *key, struct menu *menu)
472{
473 int i;
474
475 if (*key == KEY_RESIZE) {
476 setup_windows();
477 return 1;
478 }
479
480 for (i = 0; i < function_keys_num; i++) {
481 if (*key == KEY_F(function_keys[i].key) ||
482 *key == '0' + function_keys[i].key){
483 function_keys[i].handler(key, menu);
484 return 1;
485 }
486 }
487
488 return 0;
489}
490
491static void clean_items(void)
492{
493 int i;
494 for (i = 0; curses_menu_items[i]; i++)
495 free_item(curses_menu_items[i]);
496 bzero(curses_menu_items, sizeof(curses_menu_items));
497 bzero(k_menu_items, sizeof(k_menu_items));
498 items_num = 0;
499}
500
501typedef enum {MATCH_TINKER_PATTERN_UP, MATCH_TINKER_PATTERN_DOWN,
502 FIND_NEXT_MATCH_DOWN, FIND_NEXT_MATCH_UP} match_f;
503
504/* return the index of the matched item, or -1 if no such item exists */
505static int get_mext_match(const char *match_str, match_f flag)
506{
507 int match_start, index;
508
509 /* Do not search if the menu is empty (i.e. items_num == 0) */
510 match_start = item_index(current_item(curses_menu));
511 if (match_start == ERR)
512 return -1;
513
514 if (flag == FIND_NEXT_MATCH_DOWN)
515 ++match_start;
516 else if (flag == FIND_NEXT_MATCH_UP)
517 --match_start;
518
519 match_start = (match_start + items_num) % items_num;
520 index = match_start;
521 while (true) {
522 char *str = k_menu_items[index].str;
523 if (strcasestr(str, match_str) != NULL)
524 return index;
525 if (flag == FIND_NEXT_MATCH_UP ||
526 flag == MATCH_TINKER_PATTERN_UP)
527 --index;
528 else
529 ++index;
530 index = (index + items_num) % items_num;
531 if (index == match_start)
532 return -1;
533 }
534}
535
536/* Make a new item. */
537static void item_make(struct menu *menu, char tag, const char *fmt, ...)
538{
539 va_list ap;
540
541 if (items_num > MAX_MENU_ITEMS-1)
542 return;
543
544 bzero(&k_menu_items[items_num], sizeof(k_menu_items[0]));
545 k_menu_items[items_num].tag = tag;
546 k_menu_items[items_num].usrptr = menu;
547 if (menu != NULL)
548 k_menu_items[items_num].is_visible =
549 menu_is_visible(menu);
550 else
551 k_menu_items[items_num].is_visible = 1;
552
553 va_start(ap, fmt);
554 vsnprintf(k_menu_items[items_num].str,
555 sizeof(k_menu_items[items_num].str),
556 fmt, ap);
557 va_end(ap);
558
559 if (!k_menu_items[items_num].is_visible)
560 memcpy(k_menu_items[items_num].str, "XXX", 3);
561
562 curses_menu_items[items_num] = new_item(
563 k_menu_items[items_num].str,
564 k_menu_items[items_num].str);
565 set_item_userptr(curses_menu_items[items_num],
566 &k_menu_items[items_num]);
567 /*
568 if (!k_menu_items[items_num].is_visible)
569 item_opts_off(curses_menu_items[items_num], O_SELECTABLE);
570 */
571
572 items_num++;
573 curses_menu_items[items_num] = NULL;
574}
575
576/* very hackish. adds a string to the last item added */
577static void item_add_str(const char *fmt, ...)
578{
579 va_list ap;
580 int index = items_num-1;
581 char new_str[256];
582 char tmp_str[256];
583
584 if (index < 0)
585 return;
586
587 va_start(ap, fmt);
588 vsnprintf(new_str, sizeof(new_str), fmt, ap);
589 va_end(ap);
590 snprintf(tmp_str, sizeof(tmp_str), "%s%s",
591 k_menu_items[index].str, new_str);
592 strncpy(k_menu_items[index].str,
593 tmp_str,
594 sizeof(k_menu_items[index].str));
595
596 free_item(curses_menu_items[index]);
597 curses_menu_items[index] = new_item(
598 k_menu_items[index].str,
599 k_menu_items[index].str);
600 set_item_userptr(curses_menu_items[index],
601 &k_menu_items[index]);
602}
603
604/* get the tag of the currently selected item */
605static char item_tag(void)
606{
607 ITEM *cur;
608 struct mitem *mcur;
609
610 cur = current_item(curses_menu);
611 if (cur == NULL)
612 return 0;
613 mcur = (struct mitem *) item_userptr(cur);
614 return mcur->tag;
615}
616
617static int curses_item_index(void)
618{
619 return item_index(current_item(curses_menu));
620}
621
622static void *item_data(void)
623{
624 ITEM *cur;
625 struct mitem *mcur;
626
627 cur = current_item(curses_menu);
628 if (!cur)
629 return NULL;
630 mcur = (struct mitem *) item_userptr(cur);
631 return mcur->usrptr;
632
633}
634
635static int item_is_tag(char tag)
636{
637 return item_tag() == tag;
638}
639
640static char filename[PATH_MAX+1];
641static char menu_backtitle[PATH_MAX+128];
642static void set_config_filename(const char *config_filename)
643{
644 snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
645 config_filename, rootmenu.prompt->text);
646
647 snprintf(filename, sizeof(filename), "%s", config_filename);
648}
649
650/* return = 0 means we are successful.
651 * -1 means go on doing what you were doing
652 */
653static int do_exit(void)
654{
655 int res;
656 if (!conf_get_changed()) {
657 global_exit = 1;
658 return 0;
659 }
660 res = btn_dialog(main_window,
661 "Do you wish to save your new configuration?\n"
662 "<ESC> to cancel and resume nconfig.",
663 2,
664 " <save> ",
665 "<don't save>");
666 if (res == KEY_EXIT) {
667 global_exit = 0;
668 return -1;
669 }
670
671 /* if we got here, the user really wants to exit */
672 switch (res) {
673 case 0:
674 res = conf_write(filename);
675 if (res)
676 btn_dialog(
677 main_window,
678 "Error during writing of configuration.\n"
679 "Your configuration changes were NOT saved.",
680 1,
681 "<OK>");
682 conf_write_autoconf(0);
683 break;
684 default:
685 btn_dialog(
686 main_window,
687 "Your configuration changes were NOT saved.",
688 1,
689 "<OK>");
690 break;
691 }
692 global_exit = 1;
693 return 0;
694}
695
696
697static void search_conf(void)
698{
699 struct symbol **sym_arr;
700 struct gstr res;
701 struct gstr title;
702 char *dialog_input;
703 int dres, vscroll = 0, hscroll = 0;
704 bool again;
705
706 title = str_new();
707 str_printf( &title, "Enter (sub)string or regexp to search for "
708 "(with or without \"%s\")", CONFIG_);
709
710again:
711 dres = dialog_inputbox(main_window,
712 "Search Configuration Parameter",
713 str_get(&title),
714 "", &dialog_input_result, &dialog_input_result_len);
715 switch (dres) {
716 case 0:
717 break;
718 case 1:
719 show_scroll_win(main_window,
720 "Search Configuration", search_help);
721 goto again;
722 default:
723 str_free(&title);
724 return;
725 }
726
727 /* strip the prefix if necessary */
728 dialog_input = dialog_input_result;
729 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
730 dialog_input += strlen(CONFIG_);
731
732 sym_arr = sym_re_search(dialog_input);
733
734 do {
735 LIST_HEAD(head);
736 struct search_data data = {
737 .head = &head,
738 .target = NULL,
739 };
740 jump_key_char = 0;
741 res = get_relations_str(sym_arr, &head);
742 dres = show_scroll_win_ext(main_window,
743 "Search Results", str_get(&res),
744 &vscroll, &hscroll,
745 handle_search_keys, &data);
746 again = false;
747 if (dres >= '1' && dres <= '9') {
748 assert(data.target != NULL);
749 selected_conf(data.target->parent, data.target);
750 again = true;
751 }
752 str_free(&res);
753 } while (again);
754 free(sym_arr);
755 str_free(&title);
756}
757
758
759static void build_conf(struct menu *menu)
760{
761 struct symbol *sym;
762 struct property *prop;
763 struct menu *child;
764 int type, tmp, doint = 2;
765 tristate val;
766 char ch;
767
768 if (!menu || (!show_all_items && !menu_is_visible(menu)))
769 return;
770
771 sym = menu->sym;
772 prop = menu->prompt;
773 if (!sym) {
774 if (prop && menu != current_menu) {
775 const char *prompt = menu_get_prompt(menu);
776 enum prop_type ptype;
777 ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
778 switch (ptype) {
779 case P_MENU:
780 child_count++;
781 if (single_menu_mode) {
782 item_make(menu, 'm',
783 "%s%*c%s",
784 menu->data ? "-->" : "++>",
785 indent + 1, ' ', prompt);
786 } else
787 item_make(menu, 'm',
788 " %*c%s %s",
789 indent + 1, ' ', prompt,
790 menu_is_empty(menu) ? "----" : "--->");
791
792 if (single_menu_mode && menu->data)
793 goto conf_childs;
794 return;
795 case P_COMMENT:
796 if (prompt) {
797 child_count++;
798 item_make(menu, ':',
799 " %*c*** %s ***",
800 indent + 1, ' ',
801 prompt);
802 }
803 break;
804 default:
805 if (prompt) {
806 child_count++;
807 item_make(menu, ':', "---%*c%s",
808 indent + 1, ' ',
809 prompt);
810 }
811 }
812 } else
813 doint = 0;
814 goto conf_childs;
815 }
816
817 type = sym_get_type(sym);
818 if (sym_is_choice(sym)) {
819 struct symbol *def_sym = sym_calc_choice(menu);
820 struct menu *def_menu = NULL;
821
822 child_count++;
823 for (child = menu->list; child; child = child->next) {
824 if (menu_is_visible(child) && child->sym == def_sym)
825 def_menu = child;
826 }
827
828 val = sym_get_tristate_value(sym);
829 item_make(menu, def_menu ? 't' : ':', " ");
830
831 item_add_str("%*c%s", indent + 1,
832 ' ', menu_get_prompt(menu));
833 if (def_menu)
834 item_add_str(" (%s) --->", menu_get_prompt(def_menu));
835 return;
836 } else {
837 if (menu == current_menu) {
838 item_make(menu, ':',
839 "---%*c%s", indent + 1,
840 ' ', menu_get_prompt(menu));
841 goto conf_childs;
842 }
843 child_count++;
844 val = sym_get_tristate_value(sym);
845 switch (type) {
846 case S_BOOLEAN:
847 if (sym_is_changeable(sym))
848 item_make(menu, 't', "[%c]",
849 val == no ? ' ' : '*');
850 else
851 item_make(menu, 't', "-%c-",
852 val == no ? ' ' : '*');
853 break;
854 case S_TRISTATE:
855 switch (val) {
856 case yes:
857 ch = '*';
858 break;
859 case mod:
860 ch = 'M';
861 break;
862 default:
863 ch = ' ';
864 break;
865 }
866 if (sym_is_changeable(sym)) {
867 if (sym->rev_dep.tri == mod)
868 item_make(menu, 't', "{%c}", ch);
869 else
870 item_make(menu, 't', "<%c>", ch);
871 } else
872 item_make(menu, 't', "-%c-", ch);
873 break;
874 default:
875 tmp = 2 + strlen(sym_get_string_value(sym));
876 item_make(menu, 's', " (%s)",
877 sym_get_string_value(sym));
878 tmp = indent - tmp + 4;
879 if (tmp < 0)
880 tmp = 0;
881 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
882 (sym_has_value(sym) ||
883 !sym_is_changeable(sym)) ? "" : " (NEW)");
884 goto conf_childs;
885 }
886 item_add_str("%*c%s%s", indent + 1, ' ',
887 menu_get_prompt(menu),
888 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
889 "" : " (NEW)");
890 if (menu->prompt && menu->prompt->type == P_MENU) {
891 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
892 return;
893 }
894 }
895
896conf_childs:
897 indent += doint;
898 for (child = menu->list; child; child = child->next)
899 build_conf(child);
900 indent -= doint;
901}
902
903static void reset_menu(void)
904{
905 unpost_menu(curses_menu);
906 clean_items();
907}
908
909/* adjust the menu to show this item.
910 * prefer not to scroll the menu if possible*/
911static void center_item(int selected_index, int *last_top_row)
912{
913 int toprow;
914
915 set_top_row(curses_menu, *last_top_row);
916 toprow = top_row(curses_menu);
917 if (selected_index < toprow ||
918 selected_index >= toprow+mwin_max_lines) {
919 toprow = max(selected_index-mwin_max_lines/2, 0);
920 if (toprow >= item_count(curses_menu)-mwin_max_lines)
921 toprow = item_count(curses_menu)-mwin_max_lines;
922 set_top_row(curses_menu, toprow);
923 }
924 set_current_item(curses_menu,
925 curses_menu_items[selected_index]);
926 *last_top_row = toprow;
927 post_menu(curses_menu);
928 refresh_all_windows(main_window);
929}
930
931/* this function assumes reset_menu has been called before */
932static void show_menu(const char *prompt, const char *instructions,
933 int selected_index, int *last_top_row)
934{
935 int maxx, maxy;
936 WINDOW *menu_window;
937
938 current_instructions = instructions;
939
940 clear();
941 print_in_middle(stdscr, 1, getmaxx(stdscr),
942 menu_backtitle,
943 attr_main_heading);
944
945 wattrset(main_window, attr_main_menu_box);
946 box(main_window, 0, 0);
947 wattrset(main_window, attr_main_menu_heading);
948 mvwprintw(main_window, 0, 3, " %s ", prompt);
949 wattrset(main_window, attr_normal);
950
951 set_menu_items(curses_menu, curses_menu_items);
952
953 /* position the menu at the middle of the screen */
954 scale_menu(curses_menu, &maxy, &maxx);
955 maxx = min(maxx, mwin_max_cols-2);
956 maxy = mwin_max_lines;
957 menu_window = derwin(main_window,
958 maxy,
959 maxx,
960 2,
961 (mwin_max_cols-maxx)/2);
962 keypad(menu_window, TRUE);
963 set_menu_win(curses_menu, menu_window);
964 set_menu_sub(curses_menu, menu_window);
965
966 /* must reassert this after changing items, otherwise returns to a
967 * default of 16
968 */
969 set_menu_format(curses_menu, maxy, 1);
970 center_item(selected_index, last_top_row);
971 set_menu_format(curses_menu, maxy, 1);
972
973 print_function_line();
974
975 /* Post the menu */
976 post_menu(curses_menu);
977 refresh_all_windows(main_window);
978}
979
980static void adj_match_dir(match_f *match_direction)
981{
982 if (*match_direction == FIND_NEXT_MATCH_DOWN)
983 *match_direction =
984 MATCH_TINKER_PATTERN_DOWN;
985 else if (*match_direction == FIND_NEXT_MATCH_UP)
986 *match_direction =
987 MATCH_TINKER_PATTERN_UP;
988 /* else, do no change.. */
989}
990
991struct match_state
992{
993 int in_search;
994 match_f match_direction;
995 char pattern[256];
996};
997
998/* Return 0 means I have handled the key. In such a case, ans should hold the
999 * item to center, or -1 otherwise.
1000 * Else return -1 .
1001 */
1002static int do_match(int key, struct match_state *state, int *ans)
1003{
1004 char c = (char) key;
1005 int terminate_search = 0;
1006 *ans = -1;
1007 if (key == '/' || (state->in_search && key == 27)) {
1008 move(0, 0);
1009 refresh();
1010 clrtoeol();
1011 state->in_search = 1-state->in_search;
1012 bzero(state->pattern, sizeof(state->pattern));
1013 state->match_direction = MATCH_TINKER_PATTERN_DOWN;
1014 return 0;
1015 } else if (!state->in_search)
1016 return 1;
1017
1018 if (isalnum(c) || isgraph(c) || c == ' ') {
1019 state->pattern[strlen(state->pattern)] = c;
1020 state->pattern[strlen(state->pattern)] = '\0';
1021 adj_match_dir(&state->match_direction);
1022 *ans = get_mext_match(state->pattern,
1023 state->match_direction);
1024 } else if (key == KEY_DOWN) {
1025 state->match_direction = FIND_NEXT_MATCH_DOWN;
1026 *ans = get_mext_match(state->pattern,
1027 state->match_direction);
1028 } else if (key == KEY_UP) {
1029 state->match_direction = FIND_NEXT_MATCH_UP;
1030 *ans = get_mext_match(state->pattern,
1031 state->match_direction);
1032 } else if (key == KEY_BACKSPACE || key == 8 || key == 127) {
1033 state->pattern[strlen(state->pattern)-1] = '\0';
1034 adj_match_dir(&state->match_direction);
1035 } else
1036 terminate_search = 1;
1037
1038 if (terminate_search) {
1039 state->in_search = 0;
1040 bzero(state->pattern, sizeof(state->pattern));
1041 move(0, 0);
1042 refresh();
1043 clrtoeol();
1044 return -1;
1045 }
1046 return 0;
1047}
1048
1049static void conf(struct menu *menu)
1050{
1051 selected_conf(menu, NULL);
1052}
1053
1054static void selected_conf(struct menu *menu, struct menu *active_menu)
1055{
1056 struct menu *submenu = NULL;
1057 struct symbol *sym;
1058 int i, res;
1059 int current_index = 0;
1060 int last_top_row = 0;
1061 struct match_state match_state = {
1062 .in_search = 0,
1063 .match_direction = MATCH_TINKER_PATTERN_DOWN,
1064 .pattern = "",
1065 };
1066
1067 while (!global_exit) {
1068 reset_menu();
1069 current_menu = menu;
1070 build_conf(menu);
1071 if (!child_count)
1072 break;
1073
1074 if (active_menu != NULL) {
1075 for (i = 0; i < items_num; i++) {
1076 struct mitem *mcur;
1077
1078 mcur = (struct mitem *) item_userptr(curses_menu_items[i]);
1079 if ((struct menu *) mcur->usrptr == active_menu) {
1080 current_index = i;
1081 break;
1082 }
1083 }
1084 active_menu = NULL;
1085 }
1086
1087 show_menu(menu_get_prompt(menu), menu_instructions,
1088 current_index, &last_top_row);
1089 keypad((menu_win(curses_menu)), TRUE);
1090 while (!global_exit) {
1091 if (match_state.in_search) {
1092 mvprintw(0, 0,
1093 "searching: %s", match_state.pattern);
1094 clrtoeol();
1095 }
1096 refresh_all_windows(main_window);
1097 res = wgetch(menu_win(curses_menu));
1098 if (!res)
1099 break;
1100 if (do_match(res, &match_state, ¤t_index) == 0) {
1101 if (current_index != -1)
1102 center_item(current_index,
1103 &last_top_row);
1104 continue;
1105 }
1106 if (process_special_keys(&res,
1107 (struct menu *) item_data()))
1108 break;
1109 switch (res) {
1110 case KEY_DOWN:
1111 case 'j':
1112 menu_driver(curses_menu, REQ_DOWN_ITEM);
1113 break;
1114 case KEY_UP:
1115 case 'k':
1116 menu_driver(curses_menu, REQ_UP_ITEM);
1117 break;
1118 case KEY_NPAGE:
1119 menu_driver(curses_menu, REQ_SCR_DPAGE);
1120 break;
1121 case KEY_PPAGE:
1122 menu_driver(curses_menu, REQ_SCR_UPAGE);
1123 break;
1124 case KEY_HOME:
1125 menu_driver(curses_menu, REQ_FIRST_ITEM);
1126 break;
1127 case KEY_END:
1128 menu_driver(curses_menu, REQ_LAST_ITEM);
1129 break;
1130 case 'h':
1131 case '?':
1132 show_help((struct menu *) item_data());
1133 break;
1134 }
1135 if (res == 10 || res == 27 ||
1136 res == 32 || res == 'n' || res == 'y' ||
1137 res == KEY_LEFT || res == KEY_RIGHT ||
1138 res == 'm')
1139 break;
1140 refresh_all_windows(main_window);
1141 }
1142
1143 refresh_all_windows(main_window);
1144 /* if ESC or left*/
1145 if (res == 27 || (menu != &rootmenu && res == KEY_LEFT))
1146 break;
1147
1148 /* remember location in the menu */
1149 last_top_row = top_row(curses_menu);
1150 current_index = curses_item_index();
1151
1152 if (!item_tag())
1153 continue;
1154
1155 submenu = (struct menu *) item_data();
1156 if (!submenu || !menu_is_visible(submenu))
1157 continue;
1158 sym = submenu->sym;
1159
1160 switch (res) {
1161 case ' ':
1162 if (item_is_tag('t'))
1163 sym_toggle_tristate_value(sym);
1164 else if (item_is_tag('m'))
1165 conf(submenu);
1166 break;
1167 case KEY_RIGHT:
1168 case 10: /* ENTER WAS PRESSED */
1169 switch (item_tag()) {
1170 case 'm':
1171 if (single_menu_mode)
1172 submenu->data =
1173 (void *) (long) !submenu->data;
1174 else
1175 conf(submenu);
1176 break;
1177 case 't':
1178 if (sym_is_choice(sym))
1179 conf_choice(submenu);
1180 else if (submenu->prompt &&
1181 submenu->prompt->type == P_MENU)
1182 conf(submenu);
1183 else if (res == 10)
1184 sym_toggle_tristate_value(sym);
1185 break;
1186 case 's':
1187 conf_string(submenu);
1188 break;
1189 }
1190 break;
1191 case 'y':
1192 if (item_is_tag('t')) {
1193 if (sym_set_tristate_value(sym, yes))
1194 break;
1195 if (sym_set_tristate_value(sym, mod))
1196 btn_dialog(main_window, setmod_text, 0);
1197 }
1198 break;
1199 case 'n':
1200 if (item_is_tag('t'))
1201 sym_set_tristate_value(sym, no);
1202 break;
1203 case 'm':
1204 if (item_is_tag('t'))
1205 sym_set_tristate_value(sym, mod);
1206 break;
1207 }
1208 }
1209}
1210
1211static void conf_message_callback(const char *s)
1212{
1213 btn_dialog(main_window, s, 1, "<OK>");
1214}
1215
1216static void show_help(struct menu *menu)
1217{
1218 struct gstr help;
1219
1220 if (!menu)
1221 return;
1222
1223 help = str_new();
1224 menu_get_ext_help(menu, &help);
1225 show_scroll_win(main_window, menu_get_prompt(menu), str_get(&help));
1226 str_free(&help);
1227}
1228
1229static void conf_choice(struct menu *menu)
1230{
1231 const char *prompt = menu_get_prompt(menu);
1232 struct menu *child = NULL;
1233 struct symbol *active;
1234 int selected_index = 0;
1235 int last_top_row = 0;
1236 int res, i = 0;
1237 struct match_state match_state = {
1238 .in_search = 0,
1239 .match_direction = MATCH_TINKER_PATTERN_DOWN,
1240 .pattern = "",
1241 };
1242
1243 active = sym_calc_choice(menu);
1244 /* this is mostly duplicated from the conf() function. */
1245 while (!global_exit) {
1246 reset_menu();
1247
1248 for (i = 0, child = menu->list; child; child = child->next) {
1249 if (!show_all_items && !menu_is_visible(child))
1250 continue;
1251
1252 if (child->sym == sym_calc_choice(menu))
1253 item_make(child, ':', "<X> %s",
1254 menu_get_prompt(child));
1255 else if (child->sym)
1256 item_make(child, ':', " %s",
1257 menu_get_prompt(child));
1258 else
1259 item_make(child, ':', "*** %s ***",
1260 menu_get_prompt(child));
1261
1262 if (child->sym == active){
1263 last_top_row = top_row(curses_menu);
1264 selected_index = i;
1265 }
1266 i++;
1267 }
1268 show_menu(prompt ? prompt : "Choice Menu",
1269 radiolist_instructions,
1270 selected_index,
1271 &last_top_row);
1272 while (!global_exit) {
1273 if (match_state.in_search) {
1274 mvprintw(0, 0, "searching: %s",
1275 match_state.pattern);
1276 clrtoeol();
1277 }
1278 refresh_all_windows(main_window);
1279 res = wgetch(menu_win(curses_menu));
1280 if (!res)
1281 break;
1282 if (do_match(res, &match_state, &selected_index) == 0) {
1283 if (selected_index != -1)
1284 center_item(selected_index,
1285 &last_top_row);
1286 continue;
1287 }
1288 if (process_special_keys(
1289 &res,
1290 (struct menu *) item_data()))
1291 break;
1292 switch (res) {
1293 case KEY_DOWN:
1294 case 'j':
1295 menu_driver(curses_menu, REQ_DOWN_ITEM);
1296 break;
1297 case KEY_UP:
1298 case 'k':
1299 menu_driver(curses_menu, REQ_UP_ITEM);
1300 break;
1301 case KEY_NPAGE:
1302 menu_driver(curses_menu, REQ_SCR_DPAGE);
1303 break;
1304 case KEY_PPAGE:
1305 menu_driver(curses_menu, REQ_SCR_UPAGE);
1306 break;
1307 case KEY_HOME:
1308 menu_driver(curses_menu, REQ_FIRST_ITEM);
1309 break;
1310 case KEY_END:
1311 menu_driver(curses_menu, REQ_LAST_ITEM);
1312 break;
1313 case 'h':
1314 case '?':
1315 show_help((struct menu *) item_data());
1316 break;
1317 }
1318 if (res == 10 || res == 27 || res == ' ' ||
1319 res == KEY_LEFT){
1320 break;
1321 }
1322 refresh_all_windows(main_window);
1323 }
1324 /* if ESC or left */
1325 if (res == 27 || res == KEY_LEFT)
1326 break;
1327
1328 child = item_data();
1329 if (!child || !menu_is_visible(child) || !child->sym)
1330 continue;
1331 switch (res) {
1332 case ' ':
1333 case 10:
1334 case KEY_RIGHT:
1335 choice_set_value(menu, child->sym);
1336 return;
1337 case 'h':
1338 case '?':
1339 show_help(child);
1340 active = child->sym;
1341 break;
1342 case KEY_EXIT:
1343 return;
1344 }
1345 }
1346}
1347
1348static void conf_string(struct menu *menu)
1349{
1350 const char *prompt = menu_get_prompt(menu);
1351
1352 while (1) {
1353 int res;
1354 const char *heading;
1355
1356 switch (sym_get_type(menu->sym)) {
1357 case S_INT:
1358 heading = inputbox_instructions_int;
1359 break;
1360 case S_HEX:
1361 heading = inputbox_instructions_hex;
1362 break;
1363 case S_STRING:
1364 heading = inputbox_instructions_string;
1365 break;
1366 default:
1367 heading = "Internal nconf error!";
1368 }
1369 res = dialog_inputbox(main_window,
1370 prompt ? prompt : "Main Menu",
1371 heading,
1372 sym_get_string_value(menu->sym),
1373 &dialog_input_result,
1374 &dialog_input_result_len);
1375 switch (res) {
1376 case 0:
1377 if (sym_set_string_value(menu->sym,
1378 dialog_input_result))
1379 return;
1380 btn_dialog(main_window,
1381 "You have made an invalid entry.", 0);
1382 break;
1383 case 1:
1384 show_help(menu);
1385 break;
1386 case KEY_EXIT:
1387 return;
1388 }
1389 }
1390}
1391
1392static void conf_load(void)
1393{
1394 while (1) {
1395 int res;
1396 res = dialog_inputbox(main_window,
1397 NULL, load_config_text,
1398 filename,
1399 &dialog_input_result,
1400 &dialog_input_result_len);
1401 switch (res) {
1402 case 0:
1403 if (!dialog_input_result[0])
1404 return;
1405 if (!conf_read(dialog_input_result)) {
1406 set_config_filename(dialog_input_result);
1407 conf_set_changed(true);
1408 return;
1409 }
1410 btn_dialog(main_window, "File does not exist!", 0);
1411 break;
1412 case 1:
1413 show_scroll_win(main_window,
1414 "Load Alternate Configuration",
1415 load_config_help);
1416 break;
1417 case KEY_EXIT:
1418 return;
1419 }
1420 }
1421}
1422
1423static void conf_save(void)
1424{
1425 while (1) {
1426 int res;
1427 res = dialog_inputbox(main_window,
1428 NULL, save_config_text,
1429 filename,
1430 &dialog_input_result,
1431 &dialog_input_result_len);
1432 switch (res) {
1433 case 0:
1434 if (!dialog_input_result[0])
1435 return;
1436 res = conf_write(dialog_input_result);
1437 if (!res) {
1438 set_config_filename(dialog_input_result);
1439 return;
1440 }
1441 btn_dialog(main_window, "Can't create file!",
1442 1, "<OK>");
1443 break;
1444 case 1:
1445 show_scroll_win(main_window,
1446 "Save Alternate Configuration",
1447 save_config_help);
1448 break;
1449 case KEY_EXIT:
1450 return;
1451 }
1452 }
1453}
1454
1455static void setup_windows(void)
1456{
1457 int lines, columns;
1458
1459 getmaxyx(stdscr, lines, columns);
1460
1461 if (main_window != NULL)
1462 delwin(main_window);
1463
1464 /* set up the menu and menu window */
1465 main_window = newwin(lines-2, columns-2, 2, 1);
1466 keypad(main_window, TRUE);
1467 mwin_max_lines = lines-7;
1468 mwin_max_cols = columns-6;
1469
1470 /* panels order is from bottom to top */
1471 new_panel(main_window);
1472}
1473
1474int main(int ac, char **av)
1475{
1476 int lines, columns;
1477 char *mode;
1478
1479 if (ac > 1 && strcmp(av[1], "-s") == 0) {
1480 /* Silence conf_read() until the real callback is set up */
1481 conf_set_message_callback(NULL);
1482 av++;
1483 }
1484 conf_parse(av[1]);
1485 conf_read(NULL);
1486
1487 mode = getenv("NCONFIG_MODE");
1488 if (mode) {
1489 if (!strcasecmp(mode, "single_menu"))
1490 single_menu_mode = 1;
1491 }
1492
1493 /* Initialize curses */
1494 initscr();
1495 /* set color theme */
1496 set_colors();
1497
1498 cbreak();
1499 noecho();
1500 keypad(stdscr, TRUE);
1501 curs_set(0);
1502
1503 getmaxyx(stdscr, lines, columns);
1504 if (columns < 75 || lines < 20) {
1505 endwin();
1506 printf("Your terminal should have at "
1507 "least 20 lines and 75 columns\n");
1508 return 1;
1509 }
1510
1511 notimeout(stdscr, FALSE);
1512#if NCURSES_REENTRANT
1513 set_escdelay(1);
1514#else
1515 ESCDELAY = 1;
1516#endif
1517
1518 /* set btns menu */
1519 curses_menu = new_menu(curses_menu_items);
1520 menu_opts_off(curses_menu, O_SHOWDESC);
1521 menu_opts_on(curses_menu, O_SHOWMATCH);
1522 menu_opts_on(curses_menu, O_ONEVALUE);
1523 menu_opts_on(curses_menu, O_NONCYCLIC);
1524 menu_opts_on(curses_menu, O_IGNORECASE);
1525 set_menu_mark(curses_menu, " ");
1526 set_menu_fore(curses_menu, attr_main_menu_fore);
1527 set_menu_back(curses_menu, attr_main_menu_back);
1528 set_menu_grey(curses_menu, attr_main_menu_grey);
1529
1530 set_config_filename(conf_get_configname());
1531 setup_windows();
1532
1533 /* check for KEY_FUNC(1) */
1534 if (has_key(KEY_F(1)) == FALSE) {
1535 show_scroll_win(main_window,
1536 "Instructions",
1537 menu_no_f_instructions);
1538 }
1539
1540 conf_set_message_callback(conf_message_callback);
1541 /* do the work */
1542 while (!global_exit) {
1543 conf(&rootmenu);
1544 if (!global_exit && do_exit() == 0)
1545 break;
1546 }
1547 /* ok, we are done */
1548 unpost_menu(curses_menu);
1549 free_menu(curses_menu);
1550 delwin(main_window);
1551 clear();
1552 refresh();
1553 endwin();
1554 return 0;
1555}