rpcd: iwinfo plugin fixes
[openwrt.git] / scripts / config / mconf.c
1 /*
2  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3  * Released under the terms of the GNU GPL v2.0.
4  *
5  * Introduced single menu mode (show all sub-menus in one large tree).
6  * 2002-11-06 Petr Baudis <pasky@ucw.cz>
7  *
8  * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
9  */
10
11 #include <ctype.h>
12 #include <errno.h>
13 #include <fcntl.h>
14 #include <limits.h>
15 #include <stdarg.h>
16 #include <stdlib.h>
17 #include <string.h>
18 #include <signal.h>
19 #include <unistd.h>
20 #include <locale.h>
21
22 #include "lkc.h"
23 #include "lxdialog/dialog.h"
24
25 static const char mconf_readme[] = N_(
26 "Overview\n"
27 "--------\n"
28 "Some OpenWrt features may be built directly into the image.\n"
29 "Some may be made into installable ipkg packages. Some features\n"
30 "may be completely removed altogether.\n"
31 "\n"
32 "Menu items beginning with [*], <M> or [ ] represent features\n"
33 "configured to be included, built as package or removed respectively.\n"
34 "Pointed brackets <> represent packaging capable features.\n"
35 "\n"
36 "To change any of these features, highlight it with the cursor\n"
37 "keys and press <Y> to build it in, <M> to make it a module or\n"
38 "<N> to remove it.  You may also press the <Space Bar> to cycle\n"
39 "through the available options (i.e. Y->N->M->Y).\n"
40 "\n"
41 "Some additional keyboard hints:\n"
42 "\n"
43 "Menus\n"
44 "----------\n"
45 "o  Use the Up/Down arrow keys (cursor keys) to highlight the item you\n"
46 "   wish to change or the submenu you wish to select and press <Enter>.\n"
47 "   Submenus are designated by \"--->\", empty ones by \"----\".\n"
48 "\n"
49 "   Shortcut: Press the option's highlighted letter (hotkey).\n"
50 "             Pressing a hotkey more than once will sequence\n"
51 "             through all visible items which use that hotkey.\n"
52 "\n"
53 "   You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
54 "   unseen options into view.\n"
55 "\n"
56 "o  To exit a menu use the cursor keys to highlight the <Exit> button\n"
57 "   and press <ENTER>.\n"
58 "\n"
59 "   Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
60 "             using those letters.  You may press a single <ESC>, but\n"
61 "             there is a delayed response which you may find annoying.\n"
62 "\n"
63 "   Also, the <TAB> and cursor keys will cycle between <Select>,\n"
64 "   <Exit>, <Help>, <Save>, and <Load>.\n"
65 "\n"
66 "o  To get help with an item, use the cursor keys to highlight <Help>\n"
67 "   and press <ENTER>.\n"
68 "\n"
69 "   Shortcut: Press <H> or <?>.\n"
70 "\n"
71 "o  To toggle the display of hidden options, press <Z>.\n"
72 "\n"
73 "\n"
74 "Radiolists  (Choice lists)\n"
75 "-----------\n"
76 "o  Use the cursor keys to select the option you wish to set and press\n"
77 "   <S> or the <SPACE BAR>.\n"
78 "\n"
79 "   Shortcut: Press the first letter of the option you wish to set then\n"
80 "             press <S> or <SPACE BAR>.\n"
81 "\n"
82 "o  To see available help for the item, use the cursor keys to highlight\n"
83 "   <Help> and Press <ENTER>.\n"
84 "\n"
85 "   Shortcut: Press <H> or <?>.\n"
86 "\n"
87 "   Also, the <TAB> and cursor keys will cycle between <Select> and\n"
88 "   <Help>\n"
89 "\n"
90 "\n"
91 "Data Entry\n"
92 "-----------\n"
93 "o  Enter the requested information and press <ENTER>\n"
94 "   If you are entering hexadecimal values, it is not necessary to\n"
95 "   add the '0x' prefix to the entry.\n"
96 "\n"
97 "o  For help, use the <TAB> or cursor keys to highlight the help option\n"
98 "   and press <ENTER>.  You can try <TAB><H> as well.\n"
99 "\n"
100 "\n"
101 "Text Box    (Help Window)\n"
102 "--------\n"
103 "o  Use the cursor keys to scroll up/down/left/right.  The VI editor\n"
104 "   keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n"
105 "   those who are familiar with less and lynx.\n"
106 "\n"
107 "o  Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
108 "\n"
109 "\n"
110 "Alternate Configuration Files\n"
111 "-----------------------------\n"
112 "Menuconfig supports the use of alternate configuration files for\n"
113 "those who, for various reasons, find it necessary to switch\n"
114 "between different configurations.\n"
115 "\n"
116 "The <Save> button will let you save the current configuration to\n"
117 "a file of your choosing.  Use the <Load> button to load a previously\n"
118 "saved alternate configuration.\n"
119 "\n"
120 "Even if you don't use alternate configuration files, but you find\n"
121 "during a Menuconfig session that you have completely messed up your\n"
122 "settings, you may use the <Load> button to restore your previously\n"
123 "saved settings from \".config\" without restarting Menuconfig.\n"
124 "\n"
125 "Other information\n"
126 "-----------------\n"
127 "If you use Menuconfig in an XTERM window, make sure you have your\n"
128 "$TERM variable set to point to an xterm definition which supports\n"
129 "color.  Otherwise, Menuconfig will look rather bad.  Menuconfig will\n"
130 "not display correctly in an RXVT window because rxvt displays only one\n"
131 "intensity of color, bright.\n"
132 "\n"
133 "Menuconfig will display larger menus on screens or xterms which are\n"
134 "set to display more than the standard 25 row by 80 column geometry.\n"
135 "In order for this to work, the \"stty size\" command must be able to\n"
136 "display the screen's current row and column geometry.  I STRONGLY\n"
137 "RECOMMEND that you make sure you do NOT have the shell variables\n"
138 "LINES and COLUMNS exported into your environment.  Some distributions\n"
139 "export those variables via /etc/profile.  Some ncurses programs can\n"
140 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
141 "the true screen size.\n"
142 "\n"
143 "Optional personality available\n"
144 "------------------------------\n"
145 "If you prefer to have all of the options listed in a single menu,\n"
146 "rather than the default multimenu hierarchy, run the menuconfig with\n"
147 "MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
148 "\n"
149 "make MENUCONFIG_MODE=single_menu menuconfig\n"
150 "\n"
151 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
152 "is already unrolled.\n"
153 "\n"
154 "Note that this mode can eventually be a little more CPU expensive\n"
155 "(especially with a larger number of unrolled categories) than the\n"
156 "default mode.\n"
157 "\n"
158 "Different color themes available\n"
159 "--------------------------------\n"
160 "It is possible to select different color themes using the variable\n"
161 "MENUCONFIG_COLOR. To select a theme use:\n"
162 "\n"
163 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
164 "\n"
165 "Available themes are\n"
166 " mono       => selects colors suitable for monochrome displays\n"
167 " blackbg    => selects a color scheme with black background\n"
168 " classic    => theme with blue background. The classic look\n"
169 " bluetitle  => an LCD friendly version of classic. (default)\n"
170 "\n"),
171 menu_instructions[] = N_(
172         "Arrow keys navigate the menu.  "
173         "<Enter> selects submenus ---> (or empty submenus ----).  "
174         "Highlighted letters are hotkeys.  "
175         "Pressing <Y> includes, <N> excludes, <M> modularizes features.  "
176         "Press <Esc><Esc> to exit, <?> for Help, </> for Search.  "
177         "Legend: [*] built-in  [ ] excluded  <M> module  < > module capable"),
178 radiolist_instructions[] = N_(
179         "Use the arrow keys to navigate this window or "
180         "press the hotkey of the item you wish to select "
181         "followed by the <SPACE BAR>. "
182         "Press <?> for additional information about this option."),
183 inputbox_instructions_int[] = N_(
184         "Please enter a decimal value. "
185         "Fractions will not be accepted.  "
186         "Use the <TAB> key to move from the input field to the buttons below it."),
187 inputbox_instructions_hex[] = N_(
188         "Please enter a hexadecimal value. "
189         "Use the <TAB> key to move from the input field to the buttons below it."),
190 inputbox_instructions_string[] = N_(
191         "Please enter a string value. "
192         "Use the <TAB> key to move from the input field to the buttons below it."),
193 setmod_text[] = N_(
194         "This feature depends on another which has been configured as a module.\n"
195         "As a result, this feature will be built as a module."),
196 load_config_text[] = N_(
197         "Enter the name of the configuration file you wish to load.  "
198         "Accept the name shown to restore the configuration you "
199         "last retrieved.  Leave blank to abort."),
200 load_config_help[] = N_(
201         "\n"
202         "For various reasons, one may wish to keep several different\n"
203         "configurations available on a single machine.\n"
204         "\n"
205         "If you have saved a previous configuration in a file other than the\n"
206         "default one, entering its name here will allow you to modify that\n"
207         "configuration.\n"
208         "\n"
209         "If you are uncertain, then you have probably never used alternate\n"
210         "configuration files. You should therefore leave this blank to abort.\n"),
211 save_config_text[] = N_(
212         "Enter a filename to which this configuration should be saved "
213         "as an alternate.  Leave blank to abort."),
214 save_config_help[] = N_(
215         "\n"
216         "For various reasons, one may wish to keep different configurations\n"
217         "available on a single machine.\n"
218         "\n"
219         "Entering a file name here will allow you to later retrieve, modify\n"
220         "and use the current configuration as an alternate to whatever\n"
221         "configuration options you have selected at that time.\n"
222         "\n"
223         "If you are uncertain what all this means then you should probably\n"
224         "leave this blank.\n"),
225 search_help[] = N_(
226         "\n"
227         "Search for symbols and display their relations.\n"
228         "Regular expressions are allowed.\n"
229         "Example: search for \"^FOO\"\n"
230         "Result:\n"
231         "-----------------------------------------------------------------\n"
232         "Symbol: FOO [=m]\n"
233         "Type  : tristate\n"
234         "Prompt: Foo bus is used to drive the bar HW\n"
235         "  Location:\n"
236         "    -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
237         "      -> PCI support (PCI [=y])\n"
238         "(1)     -> PCI access mode (<choice> [=y])\n"
239         "  Defined at drivers/pci/Kconfig:47\n"
240         "  Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
241         "  Selects: LIBCRC32\n"
242         "  Selected by: BAR [=n]\n"
243         "-----------------------------------------------------------------\n"
244         "o The line 'Type:' shows the type of the configuration option for\n"
245         "  this symbol (boolean, tristate, string, ...)\n"
246         "o The line 'Prompt:' shows the text used in the menu structure for\n"
247         "  this symbol\n"
248         "o The 'Defined at' line tells at what file / line number the symbol\n"
249         "  is defined\n"
250         "o The 'Depends on:' line tells what symbols need to be defined for\n"
251         "  this symbol to be visible in the menu (selectable)\n"
252         "o The 'Location:' lines tells where in the menu structure this symbol\n"
253         "  is located\n"
254         "    A location followed by a [=y] indicates that this is a\n"
255         "    selectable menu item - and the current value is displayed inside\n"
256         "    brackets.\n"
257         "    Press the key in the (#) prefix to jump directly to that\n"
258         "    location. You will be returned to the current search results\n"
259         "    after exiting this new menu.\n"
260         "o The 'Selects:' line tells what symbols will be automatically\n"
261         "  selected if this symbol is selected (y or m)\n"
262         "o The 'Selected by' line tells what symbol has selected this symbol\n"
263         "\n"
264         "Only relevant lines are shown.\n"
265         "\n\n"
266         "Search examples:\n"
267         "Examples: USB  => find all symbols containing USB\n"
268         "          ^USB => find all symbols starting with USB\n"
269         "          USB$ => find all symbols ending with USB\n"
270         "\n");
271
272 static int indent;
273 static struct menu *current_menu;
274 static int child_count;
275 static int single_menu_mode;
276 static int show_all_options;
277 static int save_and_exit;
278
279 static void conf(struct menu *menu, struct menu *active_menu);
280 static void conf_choice(struct menu *menu);
281 static void conf_string(struct menu *menu);
282 static void conf_load(void);
283 static void conf_save(void);
284 static int show_textbox_ext(const char *title, char *text, int r, int c,
285                             int *keys, int *vscroll, int *hscroll,
286                             update_text_fn update_text, void *data);
287 static void show_textbox(const char *title, const char *text, int r, int c);
288 static void show_helptext(const char *title, const char *text);
289 static void show_help(struct menu *menu);
290
291 static char filename[PATH_MAX+1];
292 static void set_config_filename(const char *config_filename)
293 {
294         static char menu_backtitle[PATH_MAX+128];
295         int size;
296
297         size = snprintf(menu_backtitle, sizeof(menu_backtitle),
298                         "%s - %s", config_filename, rootmenu.prompt->text);
299         if (size >= sizeof(menu_backtitle))
300                 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
301         set_dialog_backtitle(menu_backtitle);
302
303         size = snprintf(filename, sizeof(filename), "%s", config_filename);
304         if (size >= sizeof(filename))
305                 filename[sizeof(filename)-1] = '\0';
306 }
307
308 struct subtitle_part {
309         struct list_head entries;
310         const char *text;
311 };
312 static LIST_HEAD(trail);
313
314 static struct subtitle_list *subtitles;
315 static void set_subtitle(void)
316 {
317         struct subtitle_part *sp;
318         struct subtitle_list *pos, *tmp;
319
320         for (pos = subtitles; pos != NULL; pos = tmp) {
321                 tmp = pos->next;
322                 free(pos);
323         }
324
325         subtitles = NULL;
326         list_for_each_entry(sp, &trail, entries) {
327                 if (sp->text) {
328                         if (pos) {
329                                 pos->next = xcalloc(1, sizeof(*pos));
330                                 pos = pos->next;
331                         } else {
332                                 subtitles = pos = xcalloc(1, sizeof(*pos));
333                         }
334                         pos->text = sp->text;
335                 }
336         }
337
338         set_dialog_subtitles(subtitles);
339 }
340
341 static void reset_subtitle(void)
342 {
343         struct subtitle_list *pos, *tmp;
344
345         for (pos = subtitles; pos != NULL; pos = tmp) {
346                 tmp = pos->next;
347                 free(pos);
348         }
349         subtitles = NULL;
350         set_dialog_subtitles(subtitles);
351 }
352
353 struct search_data {
354         struct list_head *head;
355         struct menu **targets;
356         int *keys;
357 };
358
359 static void update_text(char *buf, size_t start, size_t end, void *_data)
360 {
361         struct search_data *data = _data;
362         struct jump_key *pos;
363         int k = 0;
364
365         list_for_each_entry(pos, data->head, entries) {
366                 if (pos->offset >= start && pos->offset < end) {
367                         char header[4];
368
369                         if (k < JUMP_NB) {
370                                 int key = '0' + (pos->index % JUMP_NB) + 1;
371
372                                 sprintf(header, "(%c)", key);
373                                 data->keys[k] = key;
374                                 data->targets[k] = pos->target;
375                                 k++;
376                         } else {
377                                 sprintf(header, "   ");
378                         }
379
380                         memcpy(buf + pos->offset, header, sizeof(header) - 1);
381                 }
382         }
383         data->keys[k] = 0;
384 }
385
386 static void search_conf(void)
387 {
388         struct symbol **sym_arr;
389         struct gstr res;
390         struct gstr title;
391         char *dialog_input;
392         int dres, vscroll = 0, hscroll = 0;
393         bool again;
394         struct gstr sttext;
395         struct subtitle_part stpart;
396
397         title = str_new();
398         str_printf( &title, _("Enter (sub)string or regexp to search for "
399                               "(with or without \"%s\")"), CONFIG_);
400
401 again:
402         dialog_clear();
403         dres = dialog_inputbox(_("Search Configuration Parameter"),
404                               str_get(&title),
405                               10, 75, "");
406         switch (dres) {
407         case 0:
408                 break;
409         case 1:
410                 show_helptext(_("Search Configuration"), search_help);
411                 goto again;
412         default:
413                 str_free(&title);
414                 return;
415         }
416
417         /* strip the prefix if necessary */
418         dialog_input = dialog_input_result;
419         if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
420                 dialog_input += strlen(CONFIG_);
421
422         sttext = str_new();
423         str_printf(&sttext, "Search (%s)", dialog_input_result);
424         stpart.text = str_get(&sttext);
425         list_add_tail(&stpart.entries, &trail);
426
427         sym_arr = sym_re_search(dialog_input);
428         do {
429                 LIST_HEAD(head);
430                 struct menu *targets[JUMP_NB];
431                 int keys[JUMP_NB + 1], i;
432                 struct search_data data = {
433                         .head = &head,
434                         .targets = targets,
435                         .keys = keys,
436                 };
437                 struct jump_key *pos, *tmp;
438
439                 res = get_relations_str(sym_arr, &head);
440                 set_subtitle();
441                 dres = show_textbox_ext(_("Search Results"), (char *)
442                                         str_get(&res), 0, 0, keys, &vscroll,
443                                         &hscroll, &update_text, (void *)
444                                         &data);
445                 again = false;
446                 for (i = 0; i < JUMP_NB && keys[i]; i++)
447                         if (dres == keys[i]) {
448                                 conf(targets[i]->parent, targets[i]);
449                                 again = true;
450                         }
451                 str_free(&res);
452                 list_for_each_entry_safe(pos, tmp, &head, entries)
453                         free(pos);
454         } while (again);
455         free(sym_arr);
456         str_free(&title);
457         list_del(trail.prev);
458         str_free(&sttext);
459 }
460
461 static void build_conf(struct menu *menu)
462 {
463         struct symbol *sym;
464         struct property *prop;
465         struct menu *child;
466         int type, tmp, doint = 2;
467         tristate val;
468         char ch;
469         bool visible;
470
471         /*
472          * note: menu_is_visible() has side effect that it will
473          * recalc the value of the symbol.
474          */
475         visible = menu_is_visible(menu);
476         if (show_all_options && !menu_has_prompt(menu))
477                 return;
478         else if (!show_all_options && !visible)
479                 return;
480
481         sym = menu->sym;
482         prop = menu->prompt;
483         if (!sym) {
484                 if (prop && menu != current_menu) {
485                         const char *prompt = menu_get_prompt(menu);
486                         switch (prop->type) {
487                         case P_MENU:
488                                 child_count++;
489                                 prompt = _(prompt);
490                                 if (single_menu_mode) {
491                                         item_make("%s%*c%s",
492                                                   menu->data ? "-->" : "++>",
493                                                   indent + 1, ' ', prompt);
494                                 } else
495                                         item_make("   %*c%s  %s",
496                                                   indent + 1, ' ', prompt,
497                                                   menu_is_empty(menu) ? "----" : "--->");
498                                 item_set_tag('m');
499                                 item_set_data(menu);
500                                 if (single_menu_mode && menu->data)
501                                         goto conf_childs;
502                                 return;
503                         case P_COMMENT:
504                                 if (prompt) {
505                                         child_count++;
506                                         item_make("   %*c*** %s ***", indent + 1, ' ', _(prompt));
507                                         item_set_tag(':');
508                                         item_set_data(menu);
509                                 }
510                                 break;
511                         default:
512                                 if (prompt) {
513                                         child_count++;
514                                         item_make("---%*c%s", indent + 1, ' ', _(prompt));
515                                         item_set_tag(':');
516                                         item_set_data(menu);
517                                 }
518                         }
519                 } else
520                         doint = 0;
521                 goto conf_childs;
522         }
523
524         type = sym_get_type(sym);
525         if (sym_is_choice(sym)) {
526                 struct symbol *def_sym = sym_get_choice_value(sym);
527                 struct menu *def_menu = NULL;
528
529                 child_count++;
530                 for (child = menu->list; child; child = child->next) {
531                         if (menu_is_visible(child) && child->sym == def_sym)
532                                 def_menu = child;
533                 }
534
535                 val = sym_get_tristate_value(sym);
536                 if (sym_is_changable(sym)) {
537                         switch (type) {
538                         case S_BOOLEAN:
539                                 item_make("[%c]", val == no ? ' ' : '*');
540                                 break;
541                         case S_TRISTATE:
542                                 switch (val) {
543                                 case yes: ch = '*'; break;
544                                 case mod: ch = 'M'; break;
545                                 default:  ch = ' '; break;
546                                 }
547                                 item_make("<%c>", ch);
548                                 break;
549                         }
550                         item_set_tag('t');
551                         item_set_data(menu);
552                 } else {
553                         item_make("   ");
554                         item_set_tag(def_menu ? 't' : ':');
555                         item_set_data(menu);
556                 }
557
558                 item_add_str("%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
559                 if (val == yes) {
560                         if (def_menu) {
561                                 item_add_str(" (%s)", _(menu_get_prompt(def_menu)));
562                                 item_add_str("  --->");
563                                 if (def_menu->list) {
564                                         indent += 2;
565                                         build_conf(def_menu);
566                                         indent -= 2;
567                                 }
568                         }
569                         return;
570                 }
571         } else {
572                 if (menu == current_menu) {
573                         item_make("---%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
574                         item_set_tag(':');
575                         item_set_data(menu);
576                         goto conf_childs;
577                 }
578                 child_count++;
579                 val = sym_get_tristate_value(sym);
580                 if (sym_is_choice_value(sym) && val == yes) {
581                         item_make("   ");
582                         item_set_tag(':');
583                         item_set_data(menu);
584                 } else {
585                         switch (type) {
586                         case S_BOOLEAN:
587                                 if (sym_is_changable(sym))
588                                         item_make("[%c]", val == no ? ' ' : '*');
589                                 else
590                                         item_make("-%c-", val == no ? ' ' : '*');
591                                 item_set_tag('t');
592                                 item_set_data(menu);
593                                 break;
594                         case S_TRISTATE:
595                                 switch (val) {
596                                 case yes: ch = '*'; break;
597                                 case mod: ch = 'M'; break;
598                                 default:  ch = ' '; break;
599                                 }
600                                 if (sym_is_changable(sym)) {
601                                         if (sym->rev_dep.tri == mod)
602                                                 item_make("{%c}", ch);
603                                         else
604                                                 item_make("<%c>", ch);
605                                 } else
606                                         item_make("-%c-", ch);
607                                 item_set_tag('t');
608                                 item_set_data(menu);
609                                 break;
610                         default:
611                                 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
612                                 item_make("(%s)", sym_get_string_value(sym));
613                                 tmp = indent - tmp + 4;
614                                 if (tmp < 0)
615                                         tmp = 0;
616                                 item_add_str("%*c%s%s", tmp, ' ', _(menu_get_prompt(menu)),
617                                              (sym_has_value(sym) || !sym_is_changable(sym)) ?
618                                              "" : _(" (NEW)"));
619                                 item_set_tag('s');
620                                 item_set_data(menu);
621                                 goto conf_childs;
622                         }
623                 }
624                 item_add_str("%*c%s%s", indent + 1, ' ', _(menu_get_prompt(menu)),
625                           (sym_has_value(sym) || !sym_is_changable(sym)) ?
626                           "" : _(" (NEW)"));
627                 if (menu->prompt->type == P_MENU) {
628                         item_add_str("  %s", menu_is_empty(menu) ? "----" : "--->");
629                         return;
630                 }
631         }
632
633 conf_childs:
634         indent += doint;
635         for (child = menu->list; child; child = child->next)
636                 build_conf(child);
637         indent -= doint;
638 }
639
640 static void conf(struct menu *menu, struct menu *active_menu)
641 {
642         struct menu *submenu;
643         const char *prompt = menu_get_prompt(menu);
644         struct subtitle_part stpart;
645         struct symbol *sym;
646         int res;
647         int s_scroll = 0;
648
649         if (menu != &rootmenu)
650                 stpart.text = menu_get_prompt(menu);
651         else
652                 stpart.text = NULL;
653         list_add_tail(&stpart.entries, &trail);
654
655         while (1) {
656                 item_reset();
657                 current_menu = menu;
658                 build_conf(menu);
659                 if (!child_count)
660                         break;
661                 set_subtitle();
662                 dialog_clear();
663                 res = dialog_menu(prompt ? _(prompt) : _("Main Menu"),
664                                   _(menu_instructions),
665                                   active_menu, &s_scroll);
666                 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
667                         break;
668                 if (item_count() != 0) {
669                         if (!item_activate_selected())
670                                 continue;
671                         if (!item_tag())
672                                 continue;
673                 }
674                 submenu = item_data();
675                 active_menu = item_data();
676                 if (submenu)
677                         sym = submenu->sym;
678                 else
679                         sym = NULL;
680
681                 switch (res) {
682                 case 0:
683                         switch (item_tag()) {
684                         case 'm':
685                                 if (single_menu_mode)
686                                         submenu->data = (void *) (long) !submenu->data;
687                                 else
688                                         conf(submenu, NULL);
689                                 break;
690                         case 't':
691                                 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
692                                         conf_choice(submenu);
693                                 else if (submenu->prompt->type == P_MENU)
694                                         conf(submenu, NULL);
695                                 break;
696                         case 's':
697                                 conf_string(submenu);
698                                 break;
699                         }
700                         break;
701                 case 2:
702                         if (sym)
703                                 show_help(submenu);
704                         else {
705                                 reset_subtitle();
706                                 show_helptext(_("README"), _(mconf_readme));
707                         }
708                         break;
709                 case 3:
710                         reset_subtitle();
711                         conf_save();
712                         break;
713                 case 4:
714                         reset_subtitle();
715                         conf_load();
716                         break;
717                 case 5:
718                         if (item_is_tag('t')) {
719                                 if (sym_set_tristate_value(sym, yes))
720                                         break;
721                                 if (sym_set_tristate_value(sym, mod))
722                                         show_textbox(NULL, setmod_text, 6, 74);
723                         }
724                         break;
725                 case 6:
726                         if (item_is_tag('t'))
727                                 sym_set_tristate_value(sym, no);
728                         break;
729                 case 7:
730                         if (item_is_tag('t'))
731                                 sym_set_tristate_value(sym, mod);
732                         break;
733                 case 8:
734                         if (item_is_tag('t'))
735                                 sym_toggle_tristate_value(sym);
736                         else if (item_is_tag('m'))
737                                 conf(submenu, NULL);
738                         break;
739                 case 9:
740                         search_conf();
741                         break;
742                 case 10:
743                         show_all_options = !show_all_options;
744                         break;
745                 }
746         }
747
748         list_del(trail.prev);
749 }
750
751 static int show_textbox_ext(const char *title, char *text, int r, int c, int
752                             *keys, int *vscroll, int *hscroll, update_text_fn
753                             update_text, void *data)
754 {
755         dialog_clear();
756         return dialog_textbox(title, text, r, c, keys, vscroll, hscroll,
757                               update_text, data);
758 }
759
760 static void show_textbox(const char *title, const char *text, int r, int c)
761 {
762         show_textbox_ext(title, (char *) text, r, c, (int []) {0}, NULL, NULL,
763                          NULL, NULL);
764 }
765
766 static void show_helptext(const char *title, const char *text)
767 {
768         show_textbox(title, text, 0, 0);
769 }
770
771 static void conf_message_callback(const char *fmt, va_list ap)
772 {
773         char buf[PATH_MAX+1];
774
775         vsnprintf(buf, sizeof(buf), fmt, ap);
776         if (save_and_exit)
777                 printf("%s", buf);
778         else
779                 show_textbox(NULL, buf, 6, 60);
780 }
781
782 static void show_help(struct menu *menu)
783 {
784         struct gstr help = str_new();
785
786         help.max_width = getmaxx(stdscr) - 10;
787         menu_get_ext_help(menu, &help);
788
789         show_helptext(_(menu_get_prompt(menu)), str_get(&help));
790         str_free(&help);
791 }
792
793 static void conf_choice(struct menu *menu)
794 {
795         const char *prompt = _(menu_get_prompt(menu));
796         struct menu *child;
797         struct symbol *active;
798         struct property *prop;
799
800         active = sym_get_choice_value(menu->sym);
801         while (1) {
802                 int res;
803                 int selected;
804                 item_reset();
805
806                 current_menu = menu;
807                 for (child = menu->list; child; child = child->next) {
808                         if (!menu_is_visible(child))
809                                 continue;
810                         if (child->sym)
811                                 item_make("%s", _(menu_get_prompt(child)));
812                         else {
813                                 item_make("*** %s ***", _(menu_get_prompt(child)));
814                                 item_set_tag(':');
815                         }
816                         item_set_data(child);
817                         if (child->sym == active)
818                                 item_set_selected(1);
819                         if (child->sym == sym_get_choice_value(menu->sym))
820                                 item_set_tag('X');
821                 }
822                 dialog_clear();
823                 res = dialog_checklist(prompt ? _(prompt) : _("Main Menu"),
824                                         _(radiolist_instructions),
825                                         MENUBOX_HEIGTH_MIN,
826                                         MENUBOX_WIDTH_MIN,
827                                         CHECKLIST_HEIGTH_MIN);
828                 selected = item_activate_selected();
829                 switch (res) {
830                 case 0:
831                         if (selected) {
832                                 child = item_data();
833                                 if (!child->sym)
834                                         break;
835
836                                 if (sym_get_tristate_value(child->sym) != yes) {
837                                         for_all_properties(menu->sym, prop, P_RESET) {
838                                                 if (expr_calc_value(prop->visible.expr) == no)
839                                                         continue;
840
841                                                 conf_reset(S_DEF_USER);
842                                                 break;
843                                         }
844                                 }
845                                 sym_set_tristate_value(child->sym, yes);
846                         }
847                         return;
848                 case 1:
849                         if (selected) {
850                                 child = item_data();
851                                 show_help(child);
852                                 active = child->sym;
853                         } else
854                                 show_help(menu);
855                         break;
856                 case KEY_ESC:
857                         return;
858                 case -ERRDISPLAYTOOSMALL:
859                         return;
860                 }
861         }
862 }
863
864 static void conf_string(struct menu *menu)
865 {
866         const char *prompt = menu_get_prompt(menu);
867
868         while (1) {
869                 int res;
870                 const char *heading;
871
872                 switch (sym_get_type(menu->sym)) {
873                 case S_INT:
874                         heading = _(inputbox_instructions_int);
875                         break;
876                 case S_HEX:
877                         heading = _(inputbox_instructions_hex);
878                         break;
879                 case S_STRING:
880                         heading = _(inputbox_instructions_string);
881                         break;
882                 default:
883                         heading = _("Internal mconf error!");
884                 }
885                 dialog_clear();
886                 res = dialog_inputbox(prompt ? _(prompt) : _("Main Menu"),
887                                       heading, 10, 75,
888                                       sym_get_string_value(menu->sym));
889                 switch (res) {
890                 case 0:
891                         if (sym_set_string_value(menu->sym, dialog_input_result))
892                                 return;
893                         show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
894                         break;
895                 case 1:
896                         show_help(menu);
897                         break;
898                 case KEY_ESC:
899                         return;
900                 }
901         }
902 }
903
904 static void conf_load(void)
905 {
906
907         while (1) {
908                 int res;
909                 dialog_clear();
910                 res = dialog_inputbox(NULL, load_config_text,
911                                       11, 55, filename);
912                 switch(res) {
913                 case 0:
914                         if (!dialog_input_result[0])
915                                 return;
916                         if (!conf_read(dialog_input_result)) {
917                                 set_config_filename(dialog_input_result);
918                                 sym_set_change_count(1);
919                                 return;
920                         }
921                         show_textbox(NULL, _("File does not exist!"), 5, 38);
922                         break;
923                 case 1:
924                         show_helptext(_("Load Alternate Configuration"), load_config_help);
925                         break;
926                 case KEY_ESC:
927                         return;
928                 }
929         }
930 }
931
932 static void conf_save(void)
933 {
934         while (1) {
935                 int res;
936                 dialog_clear();
937                 res = dialog_inputbox(NULL, save_config_text,
938                                       11, 55, filename);
939                 switch(res) {
940                 case 0:
941                         if (!dialog_input_result[0])
942                                 return;
943                         if (!conf_write(dialog_input_result)) {
944                                 set_config_filename(dialog_input_result);
945                                 return;
946                         }
947                         show_textbox(NULL, _("Can't create file!  Probably a nonexistent directory."), 5, 60);
948                         break;
949                 case 1:
950                         show_helptext(_("Save Alternate Configuration"), save_config_help);
951                         break;
952                 case KEY_ESC:
953                         return;
954                 }
955         }
956 }
957
958 static int handle_exit(void)
959 {
960         int res;
961
962         save_and_exit = 1;
963         reset_subtitle();
964         dialog_clear();
965         if (conf_get_changed())
966                 res = dialog_yesno(NULL,
967                                    _("Do you wish to save your new configuration?\n"
968                                      "(Press <ESC><ESC> to continue kernel configuration.)"),
969                                    6, 60);
970         else
971                 res = -1;
972
973         end_dialog(saved_x, saved_y);
974
975         switch (res) {
976         case 0:
977                 if (conf_write(filename)) {
978                         fprintf(stderr, _("\n\n"
979                                           "Error while writing of the configuration.\n"
980                                           "Your configuration changes were NOT saved."
981                                           "\n\n"));
982                         return 1;
983                 }
984                 /* fall through */
985         case -1:
986                 printf(_("\n\n"
987                          "*** End of the configuration.\n"
988                          "*** Execute 'make' to start the build or try 'make help'."
989                          "\n\n"));
990                 res = 0;
991                 break;
992         default:
993                 fprintf(stderr, _("\n\n"
994                                   "Your configuration changes were NOT saved."
995                                   "\n\n"));
996                 if (res != KEY_ESC)
997                         res = 0;
998         }
999
1000         return res;
1001 }
1002
1003 static void sig_handler(int signo)
1004 {
1005         exit(handle_exit());
1006 }
1007
1008 int main(int ac, char **av)
1009 {
1010         char *mode;
1011         int res;
1012
1013         setlocale(LC_ALL, "");
1014         bindtextdomain(PACKAGE, LOCALEDIR);
1015         textdomain(PACKAGE);
1016
1017         signal(SIGINT, sig_handler);
1018
1019         conf_parse(av[1]);
1020         conf_read(NULL);
1021
1022         mode = getenv("MENUCONFIG_MODE");
1023         if (mode) {
1024                 if (!strcasecmp(mode, "single_menu"))
1025                         single_menu_mode = 1;
1026         }
1027
1028         if (init_dialog(NULL)) {
1029                 fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
1030                 fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
1031                 return 1;
1032         }
1033
1034         set_config_filename(conf_get_configname());
1035         conf_set_message_callback(conf_message_callback);
1036         do {
1037                 conf(&rootmenu, NULL);
1038                 res = handle_exit();
1039         } while (res == KEY_ESC);
1040
1041         return res;
1042 }