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nfsd: don't fail unchecked creates of non-special files
[zen-stable.git] / scripts / kconfig / mconf.c
blob2c6286c0bc1ac70ef190bdbd031905593070c933
1 /*
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
4 *
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
7 *
8 * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
9 */
10
11 #include <ctype.h>
12 #include <errno.h>
13 #include <fcntl.h>
14 #include <limits.h>
15 #include <stdarg.h>
16 #include <stdlib.h>
17 #include <string.h>
18 #include <signal.h>
19 #include <unistd.h>
20 #include <locale.h>
21
22 #include "lkc.h"
23 #include "lxdialog/dialog.h"
24
25 static const char mconf_readme[] = N_(
26 "Overview\n"
27 "--------\n"
28 "This interface let you select features and parameters for the build.\n"
29 "Features can either be built-in, modularized, or ignored. Parameters\n"
30 "must be entered in as decimal or hexadecimal numbers or text.\n"
31 "\n"
32 "Menu items beginning with following braces represent features that\n"
33 " [ ] can be built in or removed\n"
34 " < > can be built in, modularized or removed\n"
35 " { } can be built in or modularized (selected by other feature)\n"
36 " - - are selected by other feature,\n"
37 "while *, M or whitespace inside braces means to build in, build as\n"
38 "a module or to exclude the feature respectively.\n"
39 "\n"
40 "To change any of these features, highlight it with the cursor\n"
41 "keys and press <Y> to build it in, <M> to make it a module or\n"
42 "<N> to removed it. You may also press the <Space Bar> to cycle\n"
43 "through the available options (ie. Y->N->M->Y).\n"
44 "\n"
45 "Some additional keyboard hints:\n"
46 "\n"
47 "Menus\n"
48 "----------\n"
49 "o Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
50 " you wish to change or submenu wish to select and press <Enter>.\n"
51 " Submenus are designated by \"--->\".\n"
52 "\n"
53 " Shortcut: Press the option's highlighted letter (hotkey).\n"
54 " Pressing a hotkey more than once will sequence\n"
55 " through all visible items which use that hotkey.\n"
56 "\n"
57 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
58 " unseen options into view.\n"
59 "\n"
60 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
61 " and press <ENTER>.\n"
62 "\n"
63 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
64 " using those letters. You may press a single <ESC>, but\n"
65 " there is a delayed response which you may find annoying.\n"
66 "\n"
67 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
68 " <Exit> and <Help>.\n"
69 "\n"
70 "o To get help with an item, use the cursor keys to highlight <Help>\n"
71 " and press <ENTER>.\n"
72 "\n"
73 " Shortcut: Press <H> or <?>.\n"
74 "\n"
75 "o To toggle the display of hidden options, press <Z>.\n"
76 "\n"
77 "\n"
78 "Radiolists (Choice lists)\n"
79 "-----------\n"
80 "o Use the cursor keys to select the option you wish to set and press\n"
81 " <S> or the <SPACE BAR>.\n"
82 "\n"
83 " Shortcut: Press the first letter of the option you wish to set then\n"
84 " press <S> or <SPACE BAR>.\n"
85 "\n"
86 "o To see available help for the item, use the cursor keys to highlight\n"
87 " <Help> and Press <ENTER>.\n"
88 "\n"
89 " Shortcut: Press <H> or <?>.\n"
90 "\n"
91 " Also, the <TAB> and cursor keys will cycle between <Select> and\n"
92 " <Help>\n"
93 "\n"
94 "\n"
95 "Data Entry\n"
96 "-----------\n"
97 "o Enter the requested information and press <ENTER>\n"
98 " If you are entering hexadecimal values, it is not necessary to\n"
99 " add the '0x' prefix to the entry.\n"
100 "\n"
101 "o For help, use the <TAB> or cursor keys to highlight the help option\n"
102 " and press <ENTER>. You can try <TAB><H> as well.\n"
103 "\n"
104 "\n"
105 "Text Box (Help Window)\n"
106 "--------\n"
107 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
108 " keys h,j,k,l function here as do <SPACE BAR> and <B> for those\n"
109 " who are familiar with less and lynx.\n"
110 "\n"
111 "o Press <E>, <X>, <Enter> or <Esc><Esc> to exit.\n"
112 "\n"
113 "\n"
114 "Alternate Configuration Files\n"
115 "-----------------------------\n"
116 "Menuconfig supports the use of alternate configuration files for\n"
117 "those who, for various reasons, find it necessary to switch\n"
118 "between different configurations.\n"
119 "\n"
120 "At the end of the main menu you will find two options. One is\n"
121 "for saving the current configuration to a file of your choosing.\n"
122 "The other option is for loading a previously saved alternate\n"
123 "configuration.\n"
124 "\n"
125 "Even if you don't use alternate configuration files, but you\n"
126 "find during a Menuconfig session that you have completely messed\n"
127 "up your settings, you may use the \"Load Alternate...\" option to\n"
128 "restore your previously saved settings from \".config\" without\n"
129 "restarting Menuconfig.\n"
130 "\n"
131 "Other information\n"
132 "-----------------\n"
133 "If you use Menuconfig in an XTERM window make sure you have your\n"
134 "$TERM variable set to point to a xterm definition which supports color.\n"
135 "Otherwise, Menuconfig will look rather bad. Menuconfig will not\n"
136 "display correctly in a RXVT window because rxvt displays only one\n"
137 "intensity of color, bright.\n"
138 "\n"
139 "Menuconfig will display larger menus on screens or xterms which are\n"
140 "set to display more than the standard 25 row by 80 column geometry.\n"
141 "In order for this to work, the \"stty size\" command must be able to\n"
142 "display the screen's current row and column geometry. I STRONGLY\n"
143 "RECOMMEND that you make sure you do NOT have the shell variables\n"
144 "LINES and COLUMNS exported into your environment. Some distributions\n"
145 "export those variables via /etc/profile. Some ncurses programs can\n"
146 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
147 "the true screen size.\n"
148 "\n"
149 "Optional personality available\n"
150 "------------------------------\n"
151 "If you prefer to have all of the options listed in a single menu, rather\n"
152 "than the default multimenu hierarchy, run the menuconfig with\n"
153 "MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
154 "\n"
155 "make MENUCONFIG_MODE=single_menu menuconfig\n"
156 "\n"
157 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
158 "is already unrolled.\n"
159 "\n"
160 "Note that this mode can eventually be a little more CPU expensive\n"
161 "(especially with a larger number of unrolled categories) than the\n"
162 "default mode.\n"
163 "\n"
164 "Different color themes available\n"
165 "--------------------------------\n"
166 "It is possible to select different color themes using the variable\n"
167 "MENUCONFIG_COLOR. To select a theme use:\n"
168 "\n"
169 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
170 "\n"
171 "Available themes are\n"
172 " mono => selects colors suitable for monochrome displays\n"
173 " blackbg => selects a color scheme with black background\n"
174 " classic => theme with blue background. The classic look\n"
175 " bluetitle => a LCD friendly version of classic. (default)\n"
176 "\n"),
177 menu_instructions[] = N_(
178 "Arrow keys navigate the menu. "
179 "<Enter> selects submenus --->. "
180 "Highlighted letters are hotkeys. "
181 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
182 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
183 "Legend: [*] built-in [ ] excluded <M> module < > module capable"),
184 radiolist_instructions[] = N_(
185 "Use the arrow keys to navigate this window or "
186 "press the hotkey of the item you wish to select "
187 "followed by the <SPACE BAR>. "
188 "Press <?> for additional information about this option."),
189 inputbox_instructions_int[] = N_(
190 "Please enter a decimal value. "
191 "Fractions will not be accepted. "
192 "Use the <TAB> key to move from the input field to the buttons below it."),
193 inputbox_instructions_hex[] = N_(
194 "Please enter a hexadecimal value. "
195 "Use the <TAB> key to move from the input field to the buttons below it."),
196 inputbox_instructions_string[] = N_(
197 "Please enter a string value. "
198 "Use the <TAB> key to move from the input field to the buttons below it."),
199 setmod_text[] = N_(
200 "This feature depends on another which has been configured as a module.\n"
201 "As a result, this feature will be built as a module."),
202 load_config_text[] = N_(
203 "Enter the name of the configuration file you wish to load. "
204 "Accept the name shown to restore the configuration you "
205 "last retrieved. Leave blank to abort."),
206 load_config_help[] = N_(
207 "\n"
208 "For various reasons, one may wish to keep several different\n"
209 "configurations available on a single machine.\n"
210 "\n"
211 "If you have saved a previous configuration in a file other than the\n"
212 "default one, entering its name here will allow you to modify that\n"
213 "configuration.\n"
214 "\n"
215 "If you are uncertain, then you have probably never used alternate\n"
216 "configuration files. You should therefore leave this blank to abort.\n"),
217 save_config_text[] = N_(
218 "Enter a filename to which this configuration should be saved "
219 "as an alternate. Leave blank to abort."),
220 save_config_help[] = N_(
221 "\n"
222 "For various reasons, one may wish to keep different configurations\n"
223 "available on a single machine.\n"
224 "\n"
225 "Entering a file name here will allow you to later retrieve, modify\n"
226 "and use the current configuration as an alternate to whatever\n"
227 "configuration options you have selected at that time.\n"
228 "\n"
229 "If you are uncertain what all this means then you should probably\n"
230 "leave this blank.\n"),
231 search_help[] = N_(
232 "\n"
233 "Search for symbols and display their relations.\n"
234 "Regular expressions are allowed.\n"
235 "Example: search for \"^FOO\"\n"
236 "Result:\n"
237 "-----------------------------------------------------------------\n"
238 "Symbol: FOO [=m]\n"
239 "Prompt: Foo bus is used to drive the bar HW\n"
240 "Defined at drivers/pci/Kconfig:47\n"
241 "Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
242 "Location:\n"
243 " -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
244 " -> PCI support (PCI [=y])\n"
245 " -> PCI access mode (<choice> [=y])\n"
246 "Selects: LIBCRC32\n"
247 "Selected by: BAR\n"
248 "-----------------------------------------------------------------\n"
249 "o The line 'Prompt:' shows the text used in the menu structure for\n"
250 " this symbol\n"
251 "o The 'Defined at' line tell at what file / line number the symbol\n"
252 " is defined\n"
253 "o The 'Depends on:' line tell what symbols needs to be defined for\n"
254 " this symbol to be visible in the menu (selectable)\n"
255 "o The 'Location:' lines tell where in the menu structure this symbol\n"
256 " is located\n"
257 " A location followed by a [=y] indicate that this is a selectable\n"
258 " menu item - and current value is displayed inside brackets.\n"
259 "o The 'Selects:' line tell what symbol will be automatically\n"
260 " selected if this symbol is selected (y or m)\n"
261 "o The 'Selected by' line tell what symbol has selected this symbol\n"
262 "\n"
263 "Only relevant lines are shown.\n"
264 "\n\n"
265 "Search examples:\n"
266 "Examples: USB => find all symbols containing USB\n"
267 " ^USB => find all symbols starting with USB\n"
268 " USB$ => find all symbols ending with USB\n"
269 "\n");
270
271 static int indent;
272 static struct menu *current_menu;
273 static int child_count;
274 static int single_menu_mode;
275 static int show_all_options;
276 static int saved_x, saved_y;
277
278 static void conf(struct menu *menu);
279 static void conf_choice(struct menu *menu);
280 static void conf_string(struct menu *menu);
281 static void conf_load(void);
282 static void conf_save(void);
283 static void show_textbox(const char *title, const char *text, int r, int c);
284 static void show_helptext(const char *title, const char *text);
285 static void show_help(struct menu *menu);
286
287 static char filename[PATH_MAX+1];
288 static void set_config_filename(const char *config_filename)
289 {
290 static char menu_backtitle[PATH_MAX+128];
291 int size;
292
293 size = snprintf(menu_backtitle, sizeof(menu_backtitle),
294 "%s - %s", config_filename, rootmenu.prompt->text);
295 if (size >= sizeof(menu_backtitle))
296 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
297 set_dialog_backtitle(menu_backtitle);
298
299 size = snprintf(filename, sizeof(filename), "%s", config_filename);
300 if (size >= sizeof(filename))
301 filename[sizeof(filename)-1] = '\0';
302 }
303
304
305 static void search_conf(void)
306 {
307 struct symbol **sym_arr;
308 struct gstr res;
309 char *dialog_input;
310 int dres;
311 again:
312 dialog_clear();
313 dres = dialog_inputbox(_("Search Configuration Parameter"),
314 _("Enter " CONFIG_ " (sub)string to search for "
315 "(with or without \"" CONFIG_ "\")"),
316 10, 75, "");
317 switch (dres) {
318 case 0:
319 break;
320 case 1:
321 show_helptext(_("Search Configuration"), search_help);
322 goto again;
323 default:
324 return;
325 }
326
327 /* strip the prefix if necessary */
328 dialog_input = dialog_input_result;
329 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
330 dialog_input += strlen(CONFIG_);
331
332 sym_arr = sym_re_search(dialog_input);
333 res = get_relations_str(sym_arr);
334 free(sym_arr);
335 show_textbox(_("Search Results"), str_get(&res), 0, 0);
336 str_free(&res);
337 }
338
339 static void build_conf(struct menu *menu)
340 {
341 struct symbol *sym;
342 struct property *prop;
343 struct menu *child;
344 int type, tmp, doint = 2;
345 tristate val;
346 char ch;
347 bool visible;
348
349 /*
350 * note: menu_is_visible() has side effect that it will
351 * recalc the value of the symbol.
352 */
353 visible = menu_is_visible(menu);
354 if (show_all_options && !menu_has_prompt(menu))
355 return;
356 else if (!show_all_options && !visible)
357 return;
358
359 sym = menu->sym;
360 prop = menu->prompt;
361 if (!sym) {
362 if (prop && menu != current_menu) {
363 const char *prompt = menu_get_prompt(menu);
364 switch (prop->type) {
365 case P_MENU:
366 child_count++;
367 prompt = _(prompt);
368 if (single_menu_mode) {
369 item_make("%s%*c%s",
370 menu->data ? "-->" : "++>",
371 indent + 1, ' ', prompt);
372 } else
373 item_make(" %*c%s --->", indent + 1, ' ', prompt);
374
375 item_set_tag('m');
376 item_set_data(menu);
377 if (single_menu_mode && menu->data)
378 goto conf_childs;
379 return;
380 case P_COMMENT:
381 if (prompt) {
382 child_count++;
383 item_make(" %*c*** %s ***", indent + 1, ' ', _(prompt));
384 item_set_tag(':');
385 item_set_data(menu);
386 }
387 break;
388 default:
389 if (prompt) {
390 child_count++;
391 item_make("---%*c%s", indent + 1, ' ', _(prompt));
392 item_set_tag(':');
393 item_set_data(menu);
394 }
395 }
396 } else
397 doint = 0;
398 goto conf_childs;
399 }
400
401 type = sym_get_type(sym);
402 if (sym_is_choice(sym)) {
403 struct symbol *def_sym = sym_get_choice_value(sym);
404 struct menu *def_menu = NULL;
405
406 child_count++;
407 for (child = menu->list; child; child = child->next) {
408 if (menu_is_visible(child) && child->sym == def_sym)
409 def_menu = child;
410 }
411
412 val = sym_get_tristate_value(sym);
413 if (sym_is_changable(sym)) {
414 switch (type) {
415 case S_BOOLEAN:
416 item_make("[%c]", val == no ? ' ' : '*');
417 break;
418 case S_TRISTATE:
419 switch (val) {
420 case yes: ch = '*'; break;
421 case mod: ch = 'M'; break;
422 default: ch = ' '; break;
423 }
424 item_make("<%c>", ch);
425 break;
426 }
427 item_set_tag('t');
428 item_set_data(menu);
429 } else {
430 item_make(" ");
431 item_set_tag(def_menu ? 't' : ':');
432 item_set_data(menu);
433 }
434
435 item_add_str("%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
436 if (val == yes) {
437 if (def_menu) {
438 item_add_str(" (%s)", _(menu_get_prompt(def_menu)));
439 item_add_str(" --->");
440 if (def_menu->list) {
441 indent += 2;
442 build_conf(def_menu);
443 indent -= 2;
444 }
445 }
446 return;
447 }
448 } else {
449 if (menu == current_menu) {
450 item_make("---%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
451 item_set_tag(':');
452 item_set_data(menu);
453 goto conf_childs;
454 }
455 child_count++;
456 val = sym_get_tristate_value(sym);
457 if (sym_is_choice_value(sym) && val == yes) {
458 item_make(" ");
459 item_set_tag(':');
460 item_set_data(menu);
461 } else {
462 switch (type) {
463 case S_BOOLEAN:
464 if (sym_is_changable(sym))
465 item_make("[%c]", val == no ? ' ' : '*');
466 else
467 item_make("-%c-", val == no ? ' ' : '*');
468 item_set_tag('t');
469 item_set_data(menu);
470 break;
471 case S_TRISTATE:
472 switch (val) {
473 case yes: ch = '*'; break;
474 case mod: ch = 'M'; break;
475 default: ch = ' '; break;
476 }
477 if (sym_is_changable(sym)) {
478 if (sym->rev_dep.tri == mod)
479 item_make("{%c}", ch);
480 else
481 item_make("<%c>", ch);
482 } else
483 item_make("-%c-", ch);
484 item_set_tag('t');
485 item_set_data(menu);
486 break;
487 default:
488 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
489 item_make("(%s)", sym_get_string_value(sym));
490 tmp = indent - tmp + 4;
491 if (tmp < 0)
492 tmp = 0;
493 item_add_str("%*c%s%s", tmp, ' ', _(menu_get_prompt(menu)),
494 (sym_has_value(sym) || !sym_is_changable(sym)) ?
495 "" : _(" (NEW)"));
496 item_set_tag('s');
497 item_set_data(menu);
498 goto conf_childs;
499 }
500 }
501 item_add_str("%*c%s%s", indent + 1, ' ', _(menu_get_prompt(menu)),
502 (sym_has_value(sym) || !sym_is_changable(sym)) ?
503 "" : _(" (NEW)"));
504 if (menu->prompt->type == P_MENU) {
505 item_add_str(" --->");
506 return;
507 }
508 }
509
510 conf_childs:
511 indent += doint;
512 for (child = menu->list; child; child = child->next)
513 build_conf(child);
514 indent -= doint;
515 }
516
517 static void conf(struct menu *menu)
518 {
519 struct menu *submenu;
520 const char *prompt = menu_get_prompt(menu);
521 struct symbol *sym;
522 struct menu *active_menu = NULL;
523 int res;
524 int s_scroll = 0;
525
526 while (1) {
527 item_reset();
528 current_menu = menu;
529 build_conf(menu);
530 if (!child_count)
531 break;
532 if (menu == &rootmenu) {
533 item_make("--- ");
534 item_set_tag(':');
535 item_make(_(" Load an Alternate Configuration File"));
536 item_set_tag('L');
537 item_make(_(" Save an Alternate Configuration File"));
538 item_set_tag('S');
539 }
540 dialog_clear();
541 res = dialog_menu(prompt ? _(prompt) : _("Main Menu"),
542 _(menu_instructions),
543 active_menu, &s_scroll);
544 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
545 break;
546 if (!item_activate_selected())
547 continue;
548 if (!item_tag())
549 continue;
550
551 submenu = item_data();
552 active_menu = item_data();
553 if (submenu)
554 sym = submenu->sym;
555 else
556 sym = NULL;
557
558 switch (res) {
559 case 0:
560 switch (item_tag()) {
561 case 'm':
562 if (single_menu_mode)
563 submenu->data = (void *) (long) !submenu->data;
564 else
565 conf(submenu);
566 break;
567 case 't':
568 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
569 conf_choice(submenu);
570 else if (submenu->prompt->type == P_MENU)
571 conf(submenu);
572 break;
573 case 's':
574 conf_string(submenu);
575 break;
576 case 'L':
577 conf_load();
578 break;
579 case 'S':
580 conf_save();
581 break;
582 }
583 break;
584 case 2:
585 if (sym)
586 show_help(submenu);
587 else
588 show_helptext(_("README"), _(mconf_readme));
589 break;
590 case 3:
591 if (item_is_tag('t')) {
592 if (sym_set_tristate_value(sym, yes))
593 break;
594 if (sym_set_tristate_value(sym, mod))
595 show_textbox(NULL, setmod_text, 6, 74);
596 }
597 break;
598 case 4:
599 if (item_is_tag('t'))
600 sym_set_tristate_value(sym, no);
601 break;
602 case 5:
603 if (item_is_tag('t'))
604 sym_set_tristate_value(sym, mod);
605 break;
606 case 6:
607 if (item_is_tag('t'))
608 sym_toggle_tristate_value(sym);
609 else if (item_is_tag('m'))
610 conf(submenu);
611 break;
612 case 7:
613 search_conf();
614 break;
615 case 8:
616 show_all_options = !show_all_options;
617 break;
618 }
619 }
620 }
621
622 static void show_textbox(const char *title, const char *text, int r, int c)
623 {
624 dialog_clear();
625 dialog_textbox(title, text, r, c);
626 }
627
628 static void show_helptext(const char *title, const char *text)
629 {
630 show_textbox(title, text, 0, 0);
631 }
632
633 static void show_help(struct menu *menu)
634 {
635 struct gstr help = str_new();
636
637 help.max_width = getmaxx(stdscr) - 10;
638 menu_get_ext_help(menu, &help);
639
640 show_helptext(_(menu_get_prompt(menu)), str_get(&help));
641 str_free(&help);
642 }
643
644 static void conf_choice(struct menu *menu)
645 {
646 const char *prompt = _(menu_get_prompt(menu));
647 struct menu *child;
648 struct symbol *active;
649
650 active = sym_get_choice_value(menu->sym);
651 while (1) {
652 int res;
653 int selected;
654 item_reset();
655
656 current_menu = menu;
657 for (child = menu->list; child; child = child->next) {
658 if (!menu_is_visible(child))
659 continue;
660 if (child->sym)
661 item_make("%s", _(menu_get_prompt(child)));
662 else {
663 item_make("*** %s ***", _(menu_get_prompt(child)));
664 item_set_tag(':');
665 }
666 item_set_data(child);
667 if (child->sym == active)
668 item_set_selected(1);
669 if (child->sym == sym_get_choice_value(menu->sym))
670 item_set_tag('X');
671 }
672 dialog_clear();
673 res = dialog_checklist(prompt ? _(prompt) : _("Main Menu"),
674 _(radiolist_instructions),
675 15, 70, 6);
676 selected = item_activate_selected();
677 switch (res) {
678 case 0:
679 if (selected) {
680 child = item_data();
681 if (!child->sym)
682 break;
683
684 sym_set_tristate_value(child->sym, yes);
685 }
686 return;
687 case 1:
688 if (selected) {
689 child = item_data();
690 show_help(child);
691 active = child->sym;
692 } else
693 show_help(menu);
694 break;
695 case KEY_ESC:
696 return;
697 case -ERRDISPLAYTOOSMALL:
698 return;
699 }
700 }
701 }
702
703 static void conf_string(struct menu *menu)
704 {
705 const char *prompt = menu_get_prompt(menu);
706
707 while (1) {
708 int res;
709 const char *heading;
710
711 switch (sym_get_type(menu->sym)) {
712 case S_INT:
713 heading = _(inputbox_instructions_int);
714 break;
715 case S_HEX:
716 heading = _(inputbox_instructions_hex);
717 break;
718 case S_STRING:
719 heading = _(inputbox_instructions_string);
720 break;
721 default:
722 heading = _("Internal mconf error!");
723 }
724 dialog_clear();
725 res = dialog_inputbox(prompt ? _(prompt) : _("Main Menu"),
726 heading, 10, 75,
727 sym_get_string_value(menu->sym));
728 switch (res) {
729 case 0:
730 if (sym_set_string_value(menu->sym, dialog_input_result))
731 return;
732 show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
733 break;
734 case 1:
735 show_help(menu);
736 break;
737 case KEY_ESC:
738 return;
739 }
740 }
741 }
742
743 static void conf_load(void)
744 {
745
746 while (1) {
747 int res;
748 dialog_clear();
749 res = dialog_inputbox(NULL, load_config_text,
750 11, 55, filename);
751 switch(res) {
752 case 0:
753 if (!dialog_input_result[0])
754 return;
755 if (!conf_read(dialog_input_result)) {
756 set_config_filename(dialog_input_result);
757 sym_set_change_count(1);
758 return;
759 }
760 show_textbox(NULL, _("File does not exist!"), 5, 38);
761 break;
762 case 1:
763 show_helptext(_("Load Alternate Configuration"), load_config_help);
764 break;
765 case KEY_ESC:
766 return;
767 }
768 }
769 }
770
771 static void conf_save(void)
772 {
773 while (1) {
774 int res;
775 dialog_clear();
776 res = dialog_inputbox(NULL, save_config_text,
777 11, 55, filename);
778 switch(res) {
779 case 0:
780 if (!dialog_input_result[0])
781 return;
782 if (!conf_write(dialog_input_result)) {
783 set_config_filename(dialog_input_result);
784 return;
785 }
786 show_textbox(NULL, _("Can't create file! Probably a nonexistent directory."), 5, 60);
787 break;
788 case 1:
789 show_helptext(_("Save Alternate Configuration"), save_config_help);
790 break;
791 case KEY_ESC:
792 return;
793 }
794 }
795 }
796
797 static int handle_exit(void)
798 {
799 int res;
800
801 dialog_clear();
802 if (conf_get_changed())
803 res = dialog_yesno(NULL,
804 _("Do you wish to save your new configuration ?\n"
805 "<ESC><ESC> to continue."),
806 6, 60);
807 else
808 res = -1;
809
810 end_dialog(saved_x, saved_y);
811
812 switch (res) {
813 case 0:
814 if (conf_write(filename)) {
815 fprintf(stderr, _("\n\n"
816 "Error while writing of the configuration.\n"
817 "Your configuration changes were NOT saved."
818 "\n\n"));
819 return 1;
820 }
821 /* fall through */
822 case -1:
823 printf(_("\n\n"
824 "*** End of the configuration.\n"
825 "*** Execute 'make' to start the build or try 'make help'."
826 "\n\n"));
827 res = 0;
828 break;
829 default:
830 fprintf(stderr, _("\n\n"
831 "Your configuration changes were NOT saved."
832 "\n\n"));
833 if (res != KEY_ESC)
834 res = 0;
835 }
836
837 return res;
838 }
839
840 static void sig_handler(int signo)
841 {
842 exit(handle_exit());
843 }
844
845 int main(int ac, char **av)
846 {
847 char *mode;
848 int res;
849
850 setlocale(LC_ALL, "");
851 bindtextdomain(PACKAGE, LOCALEDIR);
852 textdomain(PACKAGE);
853
854 signal(SIGINT, sig_handler);
855
856 conf_parse(av[1]);
857 conf_read(NULL);
858
859 mode = getenv("MENUCONFIG_MODE");
860 if (mode) {
861 if (!strcasecmp(mode, "single_menu"))
862 single_menu_mode = 1;
863 }
864
865 initscr();
866
867 getyx(stdscr, saved_y, saved_x);
868 if (init_dialog(NULL)) {
869 fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
870 fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
871 return 1;
872 }
873
874 set_config_filename(conf_get_configname());
875 do {
876 conf(&rootmenu);
877 res = handle_exit();
878 } while (res == KEY_ESC);
879
880 return res;
881 }
882