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jbd2: jbd2 stats through procfs
[linux-2.6/x86.git] / scripts / kconfig / mconf.c
blob47e226fdedd7c8564447c76ab2481dd0ee608a44
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 <sys/ioctl.h>
12 #include <sys/wait.h>
13 #include <ctype.h>
14 #include <errno.h>
15 #include <fcntl.h>
16 #include <limits.h>
17 #include <signal.h>
18 #include <stdarg.h>
19 #include <stdlib.h>
20 #include <string.h>
21 #include <termios.h>
22 #include <unistd.h>
23 #include <locale.h>
24
25 #define LKC_DIRECT_LINK
26 #include "lkc.h"
27 #include "lxdialog/dialog.h"
28
29 static const char mconf_readme[] = N_(
30 "Overview\n"
31 "--------\n"
32 "Some kernel features may be built directly into the kernel.\n"
33 "Some may be made into loadable runtime modules. Some features\n"
34 "may be completely removed altogether. There are also certain\n"
35 "kernel parameters which are not really features, but must be\n"
36 "entered in as decimal or hexadecimal numbers or possibly text.\n"
37 "\n"
38 "Menu items beginning with following braces represent features that\n"
39 " [ ] can be built in or removed\n"
40 " < > can be built in, modularized or removed\n"
41 " { } can be built in or modularized (selected by other feature)\n"
42 " - - are selected by other feature,\n"
43 "while *, M or whitespace inside braces means to build in, build as\n"
44 "a module or to exclude the feature respectively.\n"
45 "\n"
46 "To change any of these features, highlight it with the cursor\n"
47 "keys and press <Y> to build it in, <M> to make it a module or\n"
48 "<N> to removed it. You may also press the <Space Bar> to cycle\n"
49 "through the available options (ie. Y->N->M->Y).\n"
50 "\n"
51 "Some additional keyboard hints:\n"
52 "\n"
53 "Menus\n"
54 "----------\n"
55 "o Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
56 " you wish to change or submenu wish to select and press <Enter>.\n"
57 " Submenus are designated by \"--->\".\n"
58 "\n"
59 " Shortcut: Press the option's highlighted letter (hotkey).\n"
60 " Pressing a hotkey more than once will sequence\n"
61 " through all visible items which use that hotkey.\n"
62 "\n"
63 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
64 " unseen options into view.\n"
65 "\n"
66 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
67 " and press <ENTER>.\n"
68 "\n"
69 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
70 " using those letters. You may press a single <ESC>, but\n"
71 " there is a delayed response which you may find annoying.\n"
72 "\n"
73 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
74 " <Exit> and <Help>\n"
75 "\n"
76 "o To get help with an item, use the cursor keys to highlight <Help>\n"
77 " and Press <ENTER>.\n"
78 "\n"
79 " Shortcut: Press <H> or <?>.\n"
80 "\n"
81 "\n"
82 "Radiolists (Choice lists)\n"
83 "-----------\n"
84 "o Use the cursor keys to select the option you wish to set and press\n"
85 " <S> or the <SPACE BAR>.\n"
86 "\n"
87 " Shortcut: Press the first letter of the option you wish to set then\n"
88 " press <S> or <SPACE BAR>.\n"
89 "\n"
90 "o To see available help for the item, use the cursor keys to highlight\n"
91 " <Help> and Press <ENTER>.\n"
92 "\n"
93 " Shortcut: Press <H> or <?>.\n"
94 "\n"
95 " Also, the <TAB> and cursor keys will cycle between <Select> and\n"
96 " <Help>\n"
97 "\n"
98 "\n"
99 "Data Entry\n"
100 "-----------\n"
101 "o Enter the requested information and press <ENTER>\n"
102 " If you are entering hexadecimal values, it is not necessary to\n"
103 " add the '0x' prefix to the entry.\n"
104 "\n"
105 "o For help, use the <TAB> or cursor keys to highlight the help option\n"
106 " and press <ENTER>. You can try <TAB><H> as well.\n"
107 "\n"
108 "\n"
109 "Text Box (Help Window)\n"
110 "--------\n"
111 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
112 " keys h,j,k,l function here as do <SPACE BAR> and <B> for those\n"
113 " who are familiar with less and lynx.\n"
114 "\n"
115 "o Press <E>, <X>, <Enter> or <Esc><Esc> to exit.\n"
116 "\n"
117 "\n"
118 "Alternate Configuration Files\n"
119 "-----------------------------\n"
120 "Menuconfig supports the use of alternate configuration files for\n"
121 "those who, for various reasons, find it necessary to switch\n"
122 "between different kernel configurations.\n"
123 "\n"
124 "At the end of the main menu you will find two options. One is\n"
125 "for saving the current configuration to a file of your choosing.\n"
126 "The other option is for loading a previously saved alternate\n"
127 "configuration.\n"
128 "\n"
129 "Even if you don't use alternate configuration files, but you\n"
130 "find during a Menuconfig session that you have completely messed\n"
131 "up your settings, you may use the \"Load Alternate...\" option to\n"
132 "restore your previously saved settings from \".config\" without\n"
133 "restarting Menuconfig.\n"
134 "\n"
135 "Other information\n"
136 "-----------------\n"
137 "If you use Menuconfig in an XTERM window make sure you have your\n"
138 "$TERM variable set to point to a xterm definition which supports color.\n"
139 "Otherwise, Menuconfig will look rather bad. Menuconfig will not\n"
140 "display correctly in a RXVT window because rxvt displays only one\n"
141 "intensity of color, bright.\n"
142 "\n"
143 "Menuconfig will display larger menus on screens or xterms which are\n"
144 "set to display more than the standard 25 row by 80 column geometry.\n"
145 "In order for this to work, the \"stty size\" command must be able to\n"
146 "display the screen's current row and column geometry. I STRONGLY\n"
147 "RECOMMEND that you make sure you do NOT have the shell variables\n"
148 "LINES and COLUMNS exported into your environment. Some distributions\n"
149 "export those variables via /etc/profile. Some ncurses programs can\n"
150 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
151 "the true screen size.\n"
152 "\n"
153 "Optional personality available\n"
154 "------------------------------\n"
155 "If you prefer to have all of the kernel options listed in a single\n"
156 "menu, rather than the default multimenu hierarchy, run the menuconfig\n"
157 "with MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
158 "\n"
159 "make MENUCONFIG_MODE=single_menu menuconfig\n"
160 "\n"
161 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
162 "is already unrolled.\n"
163 "\n"
164 "Note that this mode can eventually be a little more CPU expensive\n"
165 "(especially with a larger number of unrolled categories) than the\n"
166 "default mode.\n"
167 "\n"
168 "Different color themes available\n"
169 "--------------------------------\n"
170 "It is possible to select different color themes using the variable\n"
171 "MENUCONFIG_COLOR. To select a theme use:\n"
172 "\n"
173 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
174 "\n"
175 "Available themes are\n"
176 " mono => selects colors suitable for monochrome displays\n"
177 " blackbg => selects a color scheme with black background\n"
178 " classic => theme with blue background. The classic look\n"
179 " bluetitle => a LCD friendly version of classic. (default)\n"
180 "\n"),
181 menu_instructions[] = N_(
182 "Arrow keys navigate the menu. "
183 "<Enter> selects submenus --->. "
184 "Highlighted letters are hotkeys. "
185 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
186 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
187 "Legend: [*] built-in [ ] excluded <M> module < > module capable"),
188 radiolist_instructions[] = N_(
189 "Use the arrow keys to navigate this window or "
190 "press the hotkey of the item you wish to select "
191 "followed by the <SPACE BAR>. "
192 "Press <?> for additional information about this option."),
193 inputbox_instructions_int[] = N_(
194 "Please enter a decimal value. "
195 "Fractions will not be accepted. "
196 "Use the <TAB> key to move from the input field to the buttons below it."),
197 inputbox_instructions_hex[] = N_(
198 "Please enter a hexadecimal value. "
199 "Use the <TAB> key to move from the input field to the buttons below it."),
200 inputbox_instructions_string[] = N_(
201 "Please enter a string value. "
202 "Use the <TAB> key to move from the input field to the buttons below it."),
203 setmod_text[] = N_(
204 "This feature depends on another which has been configured as a module.\n"
205 "As a result, this feature will be built as a module."),
206 nohelp_text[] = N_(
207 "There is no help available for this kernel option.\n"),
208 load_config_text[] = N_(
209 "Enter the name of the configuration file you wish to load. "
210 "Accept the name shown to restore the configuration you "
211 "last retrieved. Leave blank to abort."),
212 load_config_help[] = N_(
213 "\n"
214 "For various reasons, one may wish to keep several different kernel\n"
215 "configurations available on a single machine.\n"
216 "\n"
217 "If you have saved a previous configuration in a file other than the\n"
218 "kernel's default, entering the name of the file here will allow you\n"
219 "to modify that configuration.\n"
220 "\n"
221 "If you are uncertain, then you have probably never used alternate\n"
222 "configuration files. You should therefor leave this blank to abort.\n"),
223 save_config_text[] = N_(
224 "Enter a filename to which this configuration should be saved "
225 "as an alternate. Leave blank to abort."),
226 save_config_help[] = N_(
227 "\n"
228 "For various reasons, one may wish to keep different kernel\n"
229 "configurations available on a single machine.\n"
230 "\n"
231 "Entering a file name here will allow you to later retrieve, modify\n"
232 "and use the current configuration as an alternate to whatever\n"
233 "configuration options you have selected at that time.\n"
234 "\n"
235 "If you are uncertain what all this means then you should probably\n"
236 "leave this blank.\n"),
237 search_help[] = N_(
238 "\n"
239 "Search for CONFIG_ symbols and display their relations.\n"
240 "Regular expressions are allowed.\n"
241 "Example: search for \"^FOO\"\n"
242 "Result:\n"
243 "-----------------------------------------------------------------\n"
244 "Symbol: FOO [=m]\n"
245 "Prompt: Foo bus is used to drive the bar HW\n"
246 "Defined at drivers/pci/Kconfig:47\n"
247 "Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
248 "Location:\n"
249 " -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
250 " -> PCI support (PCI [=y])\n"
251 " -> PCI access mode (<choice> [=y])\n"
252 "Selects: LIBCRC32\n"
253 "Selected by: BAR\n"
254 "-----------------------------------------------------------------\n"
255 "o The line 'Prompt:' shows the text used in the menu structure for\n"
256 " this CONFIG_ symbol\n"
257 "o The 'Defined at' line tell at what file / line number the symbol\n"
258 " is defined\n"
259 "o The 'Depends on:' line tell what symbols needs to be defined for\n"
260 " this symbol to be visible in the menu (selectable)\n"
261 "o The 'Location:' lines tell where in the menu structure this symbol\n"
262 " is located\n"
263 " A location followed by a [=y] indicate that this is a selectable\n"
264 " menu item - and current value is displayed inside brackets.\n"
265 "o The 'Selects:' line tell what symbol will be automatically\n"
266 " selected if this symbol is selected (y or m)\n"
267 "o The 'Selected by' line tell what symbol has selected this symbol\n"
268 "\n"
269 "Only relevant lines are shown.\n"
270 "\n\n"
271 "Search examples:\n"
272 "Examples: USB => find all CONFIG_ symbols containing USB\n"
273 " ^USB => find all CONFIG_ symbols starting with USB\n"
274 " USB$ => find all CONFIG_ symbols ending with USB\n"
275 "\n");
276
277 static int indent;
278 static struct termios ios_org;
279 static int rows = 0, cols = 0;
280 static struct menu *current_menu;
281 static int child_count;
282 static int single_menu_mode;
283
284 static void conf(struct menu *menu);
285 static void conf_choice(struct menu *menu);
286 static void conf_string(struct menu *menu);
287 static void conf_load(void);
288 static void conf_save(void);
289 static void show_textbox(const char *title, const char *text, int r, int c);
290 static void show_helptext(const char *title, const char *text);
291 static void show_help(struct menu *menu);
292
293 static void init_wsize(void)
294 {
295 struct winsize ws;
296 char *env;
297
298 if (!ioctl(STDIN_FILENO, TIOCGWINSZ, &ws)) {
299 rows = ws.ws_row;
300 cols = ws.ws_col;
301 }
302
303 if (!rows) {
304 env = getenv("LINES");
305 if (env)
306 rows = atoi(env);
307 if (!rows)
308 rows = 24;
309 }
310 if (!cols) {
311 env = getenv("COLUMNS");
312 if (env)
313 cols = atoi(env);
314 if (!cols)
315 cols = 80;
316 }
317
318 if (rows < 19 || cols < 80) {
319 fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
320 fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
321 exit(1);
322 }
323
324 rows -= 4;
325 cols -= 5;
326 }
327
328 static void get_prompt_str(struct gstr *r, struct property *prop)
329 {
330 int i, j;
331 struct menu *submenu[8], *menu;
332
333 str_printf(r, "Prompt: %s\n", prop->text);
334 str_printf(r, " Defined at %s:%d\n", prop->menu->file->name,
335 prop->menu->lineno);
336 if (!expr_is_yes(prop->visible.expr)) {
337 str_append(r, " Depends on: ");
338 expr_gstr_print(prop->visible.expr, r);
339 str_append(r, "\n");
340 }
341 menu = prop->menu->parent;
342 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
343 submenu[i++] = menu;
344 if (i > 0) {
345 str_printf(r, " Location:\n");
346 for (j = 4; --i >= 0; j += 2) {
347 menu = submenu[i];
348 str_printf(r, "%*c-> %s", j, ' ', menu_get_prompt(menu));
349 if (menu->sym) {
350 str_printf(r, " (%s [=%s])", menu->sym->name ?
351 menu->sym->name : "<choice>",
352 sym_get_string_value(menu->sym));
353 }
354 str_append(r, "\n");
355 }
356 }
357 }
358
359 static void get_symbol_str(struct gstr *r, struct symbol *sym)
360 {
361 bool hit;
362 struct property *prop;
363
364 if (sym && sym->name)
365 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
366 sym_get_string_value(sym));
367 for_all_prompts(sym, prop)
368 get_prompt_str(r, prop);
369 hit = false;
370 for_all_properties(sym, prop, P_SELECT) {
371 if (!hit) {
372 str_append(r, " Selects: ");
373 hit = true;
374 } else
375 str_printf(r, " && ");
376 expr_gstr_print(prop->expr, r);
377 }
378 if (hit)
379 str_append(r, "\n");
380 if (sym->rev_dep.expr) {
381 str_append(r, " Selected by: ");
382 expr_gstr_print(sym->rev_dep.expr, r);
383 str_append(r, "\n");
384 }
385 str_append(r, "\n\n");
386 }
387
388 static struct gstr get_relations_str(struct symbol **sym_arr)
389 {
390 struct symbol *sym;
391 struct gstr res = str_new();
392 int i;
393
394 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
395 get_symbol_str(&res, sym);
396 if (!i)
397 str_append(&res, "No matches found.\n");
398 return res;
399 }
400
401 static char filename[PATH_MAX+1];
402 static void set_config_filename(const char *config_filename)
403 {
404 static char menu_backtitle[PATH_MAX+128];
405 int size;
406 struct symbol *sym;
407
408 sym = sym_lookup("KERNELVERSION", 0);
409 sym_calc_value(sym);
410 size = snprintf(menu_backtitle, sizeof(menu_backtitle),
411 _("%s - Linux Kernel v%s Configuration"),
412 config_filename, sym_get_string_value(sym));
413 if (size >= sizeof(menu_backtitle))
414 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
415 set_dialog_backtitle(menu_backtitle);
416
417 size = snprintf(filename, sizeof(filename), "%s", config_filename);
418 if (size >= sizeof(filename))
419 filename[sizeof(filename)-1] = '\0';
420 }
421
422
423 static void search_conf(void)
424 {
425 struct symbol **sym_arr;
426 struct gstr res;
427 char *dialog_input;
428 int dres;
429 again:
430 dialog_clear();
431 dres = dialog_inputbox(_("Search Configuration Parameter"),
432 _("Enter CONFIG_ (sub)string to search for "
433 "(with or without \"CONFIG\")"),
434 10, 75, "");
435 switch (dres) {
436 case 0:
437 break;
438 case 1:
439 show_helptext(_("Search Configuration"), search_help);
440 goto again;
441 default:
442 return;
443 }
444
445 /* strip CONFIG_ if necessary */
446 dialog_input = dialog_input_result;
447 if (strncasecmp(dialog_input_result, "CONFIG_", 7) == 0)
448 dialog_input += 7;
449
450 sym_arr = sym_re_search(dialog_input);
451 res = get_relations_str(sym_arr);
452 free(sym_arr);
453 show_textbox(_("Search Results"), str_get(&res), 0, 0);
454 str_free(&res);
455 }
456
457 static void build_conf(struct menu *menu)
458 {
459 struct symbol *sym;
460 struct property *prop;
461 struct menu *child;
462 int type, tmp, doint = 2;
463 tristate val;
464 char ch;
465
466 if (!menu_is_visible(menu))
467 return;
468
469 sym = menu->sym;
470 prop = menu->prompt;
471 if (!sym) {
472 if (prop && menu != current_menu) {
473 const char *prompt = menu_get_prompt(menu);
474 switch (prop->type) {
475 case P_MENU:
476 child_count++;
477 if (single_menu_mode) {
478 item_make("%s%*c%s",
479 menu->data ? "-->" : "++>",
480 indent + 1, ' ', prompt);
481 } else
482 item_make(" %*c%s --->", indent + 1, ' ', prompt);
483
484 item_set_tag('m');
485 item_set_data(menu);
486 if (single_menu_mode && menu->data)
487 goto conf_childs;
488 return;
489 case P_COMMENT:
490 if (prompt) {
491 child_count++;
492 item_make(" %*c*** %s ***", indent + 1, ' ', prompt);
493 item_set_tag(':');
494 item_set_data(menu);
495 }
496 break;
497 default:
498 if (prompt) {
499 child_count++;
500 item_make("---%*c%s", indent + 1, ' ', prompt);
501 item_set_tag(':');
502 item_set_data(menu);
503 }
504 }
505 } else
506 doint = 0;
507 goto conf_childs;
508 }
509
510 type = sym_get_type(sym);
511 if (sym_is_choice(sym)) {
512 struct symbol *def_sym = sym_get_choice_value(sym);
513 struct menu *def_menu = NULL;
514
515 child_count++;
516 for (child = menu->list; child; child = child->next) {
517 if (menu_is_visible(child) && child->sym == def_sym)
518 def_menu = child;
519 }
520
521 val = sym_get_tristate_value(sym);
522 if (sym_is_changable(sym)) {
523 switch (type) {
524 case S_BOOLEAN:
525 item_make("[%c]", val == no ? ' ' : '*');
526 break;
527 case S_TRISTATE:
528 switch (val) {
529 case yes: ch = '*'; break;
530 case mod: ch = 'M'; break;
531 default: ch = ' '; break;
532 }
533 item_make("<%c>", ch);
534 break;
535 }
536 item_set_tag('t');
537 item_set_data(menu);
538 } else {
539 item_make(" ");
540 item_set_tag(def_menu ? 't' : ':');
541 item_set_data(menu);
542 }
543
544 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
545 if (val == yes) {
546 if (def_menu) {
547 item_add_str(" (%s)", menu_get_prompt(def_menu));
548 item_add_str(" --->");
549 if (def_menu->list) {
550 indent += 2;
551 build_conf(def_menu);
552 indent -= 2;
553 }
554 }
555 return;
556 }
557 } else {
558 if (menu == current_menu) {
559 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
560 item_set_tag(':');
561 item_set_data(menu);
562 goto conf_childs;
563 }
564 child_count++;
565 val = sym_get_tristate_value(sym);
566 if (sym_is_choice_value(sym) && val == yes) {
567 item_make(" ");
568 item_set_tag(':');
569 item_set_data(menu);
570 } else {
571 switch (type) {
572 case S_BOOLEAN:
573 if (sym_is_changable(sym))
574 item_make("[%c]", val == no ? ' ' : '*');
575 else
576 item_make("-%c-", val == no ? ' ' : '*');
577 item_set_tag('t');
578 item_set_data(menu);
579 break;
580 case S_TRISTATE:
581 switch (val) {
582 case yes: ch = '*'; break;
583 case mod: ch = 'M'; break;
584 default: ch = ' '; break;
585 }
586 if (sym_is_changable(sym)) {
587 if (sym->rev_dep.tri == mod)
588 item_make("{%c}", ch);
589 else
590 item_make("<%c>", ch);
591 } else
592 item_make("-%c-", ch);
593 item_set_tag('t');
594 item_set_data(menu);
595 break;
596 default:
597 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
598 item_make("(%s)", sym_get_string_value(sym));
599 tmp = indent - tmp + 4;
600 if (tmp < 0)
601 tmp = 0;
602 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
603 (sym_has_value(sym) || !sym_is_changable(sym)) ?
604 "" : " (NEW)");
605 item_set_tag('s');
606 item_set_data(menu);
607 goto conf_childs;
608 }
609 }
610 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
611 (sym_has_value(sym) || !sym_is_changable(sym)) ?
612 "" : " (NEW)");
613 if (menu->prompt->type == P_MENU) {
614 item_add_str(" --->");
615 return;
616 }
617 }
618
619 conf_childs:
620 indent += doint;
621 for (child = menu->list; child; child = child->next)
622 build_conf(child);
623 indent -= doint;
624 }
625
626 static void conf(struct menu *menu)
627 {
628 struct menu *submenu;
629 const char *prompt = menu_get_prompt(menu);
630 struct symbol *sym;
631 struct menu *active_menu = NULL;
632 int res;
633 int s_scroll = 0;
634
635 while (1) {
636 item_reset();
637 current_menu = menu;
638 build_conf(menu);
639 if (!child_count)
640 break;
641 if (menu == &rootmenu) {
642 item_make("--- ");
643 item_set_tag(':');
644 item_make(_(" Load an Alternate Configuration File"));
645 item_set_tag('L');
646 item_make(_(" Save an Alternate Configuration File"));
647 item_set_tag('S');
648 }
649 dialog_clear();
650 res = dialog_menu(prompt ? prompt : _("Main Menu"),
651 _(menu_instructions),
652 active_menu, &s_scroll);
653 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
654 break;
655 if (!item_activate_selected())
656 continue;
657 if (!item_tag())
658 continue;
659
660 submenu = item_data();
661 active_menu = item_data();
662 if (submenu)
663 sym = submenu->sym;
664 else
665 sym = NULL;
666
667 switch (res) {
668 case 0:
669 switch (item_tag()) {
670 case 'm':
671 if (single_menu_mode)
672 submenu->data = (void *) (long) !submenu->data;
673 else
674 conf(submenu);
675 break;
676 case 't':
677 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
678 conf_choice(submenu);
679 else if (submenu->prompt->type == P_MENU)
680 conf(submenu);
681 break;
682 case 's':
683 conf_string(submenu);
684 break;
685 case 'L':
686 conf_load();
687 break;
688 case 'S':
689 conf_save();
690 break;
691 }
692 break;
693 case 2:
694 if (sym)
695 show_help(submenu);
696 else
697 show_helptext("README", _(mconf_readme));
698 break;
699 case 3:
700 if (item_is_tag('t')) {
701 if (sym_set_tristate_value(sym, yes))
702 break;
703 if (sym_set_tristate_value(sym, mod))
704 show_textbox(NULL, setmod_text, 6, 74);
705 }
706 break;
707 case 4:
708 if (item_is_tag('t'))
709 sym_set_tristate_value(sym, no);
710 break;
711 case 5:
712 if (item_is_tag('t'))
713 sym_set_tristate_value(sym, mod);
714 break;
715 case 6:
716 if (item_is_tag('t'))
717 sym_toggle_tristate_value(sym);
718 else if (item_is_tag('m'))
719 conf(submenu);
720 break;
721 case 7:
722 search_conf();
723 break;
724 }
725 }
726 }
727
728 static void show_textbox(const char *title, const char *text, int r, int c)
729 {
730 dialog_clear();
731 dialog_textbox(title, text, r, c);
732 }
733
734 static void show_helptext(const char *title, const char *text)
735 {
736 show_textbox(title, text, 0, 0);
737 }
738
739 static void show_help(struct menu *menu)
740 {
741 struct gstr help = str_new();
742 struct symbol *sym = menu->sym;
743
744 if (menu_has_help(menu))
745 {
746 if (sym->name) {
747 str_printf(&help, "CONFIG_%s:\n\n", sym->name);
748 str_append(&help, _(menu_get_help(menu)));
749 str_append(&help, "\n");
750 }
751 } else {
752 str_append(&help, nohelp_text);
753 }
754 get_symbol_str(&help, sym);
755 show_helptext(menu_get_prompt(menu), str_get(&help));
756 str_free(&help);
757 }
758
759 static void conf_choice(struct menu *menu)
760 {
761 const char *prompt = menu_get_prompt(menu);
762 struct menu *child;
763 struct symbol *active;
764
765 active = sym_get_choice_value(menu->sym);
766 while (1) {
767 int res;
768 int selected;
769 item_reset();
770
771 current_menu = menu;
772 for (child = menu->list; child; child = child->next) {
773 if (!menu_is_visible(child))
774 continue;
775 item_make("%s", menu_get_prompt(child));
776 item_set_data(child);
777 if (child->sym == active)
778 item_set_selected(1);
779 if (child->sym == sym_get_choice_value(menu->sym))
780 item_set_tag('X');
781 }
782 dialog_clear();
783 res = dialog_checklist(prompt ? prompt : _("Main Menu"),
784 _(radiolist_instructions),
785 15, 70, 6);
786 selected = item_activate_selected();
787 switch (res) {
788 case 0:
789 if (selected) {
790 child = item_data();
791 sym_set_tristate_value(child->sym, yes);
792 }
793 return;
794 case 1:
795 if (selected) {
796 child = item_data();
797 show_help(child);
798 active = child->sym;
799 } else
800 show_help(menu);
801 break;
802 case KEY_ESC:
803 return;
804 case -ERRDISPLAYTOOSMALL:
805 return;
806 }
807 }
808 }
809
810 static void conf_string(struct menu *menu)
811 {
812 const char *prompt = menu_get_prompt(menu);
813
814 while (1) {
815 int res;
816 char *heading;
817
818 switch (sym_get_type(menu->sym)) {
819 case S_INT:
820 heading = _(inputbox_instructions_int);
821 break;
822 case S_HEX:
823 heading = _(inputbox_instructions_hex);
824 break;
825 case S_STRING:
826 heading = _(inputbox_instructions_string);
827 break;
828 default:
829 heading = "Internal mconf error!";
830 }
831 dialog_clear();
832 res = dialog_inputbox(prompt ? prompt : _("Main Menu"),
833 heading, 10, 75,
834 sym_get_string_value(menu->sym));
835 switch (res) {
836 case 0:
837 if (sym_set_string_value(menu->sym, dialog_input_result))
838 return;
839 show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
840 break;
841 case 1:
842 show_help(menu);
843 break;
844 case KEY_ESC:
845 return;
846 }
847 }
848 }
849
850 static void conf_load(void)
851 {
852
853 while (1) {
854 int res;
855 dialog_clear();
856 res = dialog_inputbox(NULL, load_config_text,
857 11, 55, filename);
858 switch(res) {
859 case 0:
860 if (!dialog_input_result[0])
861 return;
862 if (!conf_read(dialog_input_result)) {
863 set_config_filename(dialog_input_result);
864 return;
865 }
866 show_textbox(NULL, _("File does not exist!"), 5, 38);
867 break;
868 case 1:
869 show_helptext(_("Load Alternate Configuration"), load_config_help);
870 break;
871 case KEY_ESC:
872 return;
873 }
874 }
875 }
876
877 static void conf_save(void)
878 {
879 while (1) {
880 int res;
881 dialog_clear();
882 res = dialog_inputbox(NULL, save_config_text,
883 11, 55, filename);
884 switch(res) {
885 case 0:
886 if (!dialog_input_result[0])
887 return;
888 if (!conf_write(dialog_input_result)) {
889 set_config_filename(dialog_input_result);
890 return;
891 }
892 show_textbox(NULL, _("Can't create file! Probably a nonexistent directory."), 5, 60);
893 break;
894 case 1:
895 show_helptext(_("Save Alternate Configuration"), save_config_help);
896 break;
897 case KEY_ESC:
898 return;
899 }
900 }
901 }
902
903 static void conf_cleanup(void)
904 {
905 tcsetattr(1, TCSAFLUSH, &ios_org);
906 }
907
908 int main(int ac, char **av)
909 {
910 char *mode;
911 int res;
912
913 setlocale(LC_ALL, "");
914 bindtextdomain(PACKAGE, LOCALEDIR);
915 textdomain(PACKAGE);
916
917 conf_parse(av[1]);
918 conf_read(NULL);
919
920 mode = getenv("MENUCONFIG_MODE");
921 if (mode) {
922 if (!strcasecmp(mode, "single_menu"))
923 single_menu_mode = 1;
924 }
925
926 tcgetattr(1, &ios_org);
927 atexit(conf_cleanup);
928 init_wsize();
929 reset_dialog();
930 init_dialog(NULL);
931 set_config_filename(conf_get_configname());
932 do {
933 conf(&rootmenu);
934 dialog_clear();
935 if (conf_get_changed())
936 res = dialog_yesno(NULL,
937 _("Do you wish to save your "
938 "new kernel configuration?\n"
939 "<ESC><ESC> to continue."),
940 6, 60);
941 else
942 res = -1;
943 } while (res == KEY_ESC);
944 end_dialog();
945
946 switch (res) {
947 case 0:
948 if (conf_write(filename)) {
949 fprintf(stderr, _("\n\n"
950 "Error during writing of the kernel configuration.\n"
951 "Your kernel configuration changes were NOT saved."
952 "\n\n"));
953 return 1;
954 }
955 case -1:
956 printf(_("\n\n"
957 "*** End of Linux kernel configuration.\n"
958 "*** Execute 'make' to build the kernel or try 'make help'."
959 "\n\n"));
960 break;
961 default:
962 fprintf(stderr, _("\n\n"
963 "Your kernel configuration changes were NOT saved."
964 "\n\n"));
965 }
966
967 return 0;
968 }
x86 "subsystem" repository