1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> 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 <strings.h> 19 #include <signal.h> 20 #include <unistd.h> 21 22 #include "lkc.h" 23 #include "lxdialog/dialog.h" 24 25 #define JUMP_NB 9 26 27 static const char mconf_readme[] = 28 "Overview\n" 29 "--------\n" 30 "This interface lets you select features and parameters for the build.\n" 31 "Features can either be built-in, modularized, or ignored. Parameters\n" 32 "must be entered in as decimal or hexadecimal numbers or text.\n" 33 "\n" 34 "Menu items beginning with following braces represent features that\n" 35 " [ ] can be built in or removed\n" 36 " < > can be built in, modularized or removed\n" 37 " { } can be built in or modularized (selected by other feature)\n" 38 " - - are selected by other feature,\n" 39 "while *, M or whitespace inside braces means to build in, build as\n" 40 "a module or to exclude the feature respectively.\n" 41 "\n" 42 "To change any of these features, highlight it with the cursor\n" 43 "keys and press <Y> to build it in, <M> to make it a module or\n" 44 "<N> to remove it. You may also press the <Space Bar> to cycle\n" 45 "through the available options (i.e. Y->N->M->Y).\n" 46 "\n" 47 "Some additional keyboard hints:\n" 48 "\n" 49 "Menus\n" 50 "----------\n" 51 "o Use the Up/Down arrow keys (cursor keys) to highlight the item you\n" 52 " wish to change or the submenu you wish to select and press <Enter>.\n" 53 " Submenus are designated by \"--->\", empty ones by \"----\".\n" 54 "\n" 55 " Shortcut: Press the option's highlighted letter (hotkey).\n" 56 " Pressing a hotkey more than once will sequence\n" 57 " through all visible items which use that hotkey.\n" 58 "\n" 59 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n" 60 " unseen options into view.\n" 61 "\n" 62 "o To exit a menu use the cursor keys to highlight the <Exit> button\n" 63 " and press <ENTER>.\n" 64 "\n" 65 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n" 66 " using those letters. You may press a single <ESC>, but\n" 67 " there is a delayed response which you may find annoying.\n" 68 "\n" 69 " Also, the <TAB> and cursor keys will cycle between <Select>,\n" 70 " <Exit>, <Help>, <Save>, and <Load>.\n" 71 "\n" 72 "o To get help with an item, use the cursor keys to highlight <Help>\n" 73 " and press <ENTER>.\n" 74 "\n" 75 " Shortcut: Press <H> or <?>.\n" 76 "\n" 77 "o To toggle the display of hidden options, press <Z>.\n" 78 "\n" 79 "\n" 80 "Radiolists (Choice lists)\n" 81 "-----------\n" 82 "o Use the cursor keys to select the option you wish to set and press\n" 83 " <S> or the <SPACE BAR>.\n" 84 "\n" 85 " Shortcut: Press the first letter of the option you wish to set then\n" 86 " press <S> or <SPACE BAR>.\n" 87 "\n" 88 "o To see available help for the item, use the cursor keys to highlight\n" 89 " <Help> and Press <ENTER>.\n" 90 "\n" 91 " Shortcut: Press <H> or <?>.\n" 92 "\n" 93 " Also, the <TAB> and cursor keys will cycle between <Select> and\n" 94 " <Help>\n" 95 "\n" 96 "\n" 97 "Data Entry\n" 98 "-----------\n" 99 "o Enter the requested information and press <ENTER>\n" 100 " If you are entering hexadecimal values, it is not necessary to\n" 101 " add the '0x' prefix to the entry.\n" 102 "\n" 103 "o For help, use the <TAB> or cursor keys to highlight the help option\n" 104 " and press <ENTER>. You can try <TAB><H> as well.\n" 105 "\n" 106 "\n" 107 "Text Box (Help Window)\n" 108 "--------\n" 109 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n" 110 " keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n" 111 " those who are familiar with less and lynx.\n" 112 "\n" 113 "o Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n" 114 "\n" 115 "\n" 116 "Alternate Configuration Files\n" 117 "-----------------------------\n" 118 "Menuconfig supports the use of alternate configuration files for\n" 119 "those who, for various reasons, find it necessary to switch\n" 120 "between different configurations.\n" 121 "\n" 122 "The <Save> button will let you save the current configuration to\n" 123 "a file of your choosing. Use the <Load> button to load a previously\n" 124 "saved alternate configuration.\n" 125 "\n" 126 "Even if you don't use alternate configuration files, but you find\n" 127 "during a Menuconfig session that you have completely messed up your\n" 128 "settings, you may use the <Load> button to restore your previously\n" 129 "saved settings from \".config\" without 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 an xterm definition which supports\n" 135 "color. Otherwise, Menuconfig will look rather bad. Menuconfig will\n" 136 "not display correctly in an 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,\n" 152 "rather 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 => an LCD friendly version of classic. (default)\n" 176 "\n", 177 menu_instructions[] = 178 "Arrow keys navigate the menu. " 179 "<Enter> selects submenus ---> (or empty 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[] = 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[] = 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[] = 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[] = 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[] = 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[] = 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[] = 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[] = 218 "Enter a filename to which this configuration should be saved " 219 "as an alternate. Leave blank to abort.", 220 save_config_help[] = 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[] = 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 "Type : tristate\n" 240 "Prompt: Foo bus is used to drive the bar HW\n" 241 " Location:\n" 242 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n" 243 " -> PCI support (PCI [=y])\n" 244 "(1) -> PCI access mode (<choice> [=y])\n" 245 " Defined at drivers/pci/Kconfig:47\n" 246 " Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n" 247 " Selects: LIBCRC32\n" 248 " Selected by: BAR [=n]\n" 249 "-----------------------------------------------------------------\n" 250 "o The line 'Type:' shows the type of the configuration option for\n" 251 " this symbol (bool, tristate, string, ...)\n" 252 "o The line 'Prompt:' shows the text used in the menu structure for\n" 253 " this symbol\n" 254 "o The 'Defined at' line tells at what file / line number the symbol\n" 255 " is defined\n" 256 "o The 'Depends on:' line tells what symbols need to be defined for\n" 257 " this symbol to be visible in the menu (selectable)\n" 258 "o The 'Location:' lines tells where in the menu structure this symbol\n" 259 " is located\n" 260 " A location followed by a [=y] indicates that this is a\n" 261 " selectable menu item - and the current value is displayed inside\n" 262 " brackets.\n" 263 " Press the key in the (#) prefix to jump directly to that\n" 264 " location. You will be returned to the current search results\n" 265 " after exiting this new menu.\n" 266 "o The 'Selects:' line tells what symbols will be automatically\n" 267 " selected if this symbol is selected (y or m)\n" 268 "o The 'Selected by' line tells what symbol has selected this symbol\n" 269 "\n" 270 "Only relevant lines are shown.\n" 271 "\n\n" 272 "Search examples:\n" 273 "Examples: USB => find all symbols containing USB\n" 274 " ^USB => find all symbols starting with USB\n" 275 " USB$ => find all symbols ending with USB\n" 276 "\n"; 277 278 static int indent; 279 static struct menu *current_menu; 280 static int child_count; 281 static int single_menu_mode; 282 static int show_all_options; 283 static int save_and_exit; 284 static int silent; 285 286 static void conf(struct menu *menu, struct menu *active_menu); 287 static void conf_choice(struct menu *menu); 288 static void conf_string(struct menu *menu); 289 static void conf_load(void); 290 static void conf_save(void); 291 static int show_textbox_ext(const char *title, char *text, int r, int c, 292 int *keys, int *vscroll, int *hscroll, 293 update_text_fn update_text, void *data); 294 static void show_textbox(const char *title, const char *text, int r, int c); 295 static void show_helptext(const char *title, const char *text); 296 static void show_help(struct menu *menu); 297 298 static char filename[PATH_MAX+1]; 299 static void set_config_filename(const char *config_filename) 300 { 301 static char menu_backtitle[PATH_MAX+128]; 302 int size; 303 304 size = snprintf(menu_backtitle, sizeof(menu_backtitle), 305 "%s - %s", config_filename, rootmenu.prompt->text); 306 if (size >= sizeof(menu_backtitle)) 307 menu_backtitle[sizeof(menu_backtitle)-1] = '\0'; 308 set_dialog_backtitle(menu_backtitle); 309 310 size = snprintf(filename, sizeof(filename), "%s", config_filename); 311 if (size >= sizeof(filename)) 312 filename[sizeof(filename)-1] = '\0'; 313 } 314 315 struct subtitle_part { 316 struct list_head entries; 317 const char *text; 318 }; 319 static LIST_HEAD(trail); 320 321 static struct subtitle_list *subtitles; 322 static void set_subtitle(void) 323 { 324 struct subtitle_part *sp; 325 struct subtitle_list *pos, *tmp; 326 327 for (pos = subtitles; pos != NULL; pos = tmp) { 328 tmp = pos->next; 329 free(pos); 330 } 331 332 subtitles = NULL; 333 list_for_each_entry(sp, &trail, entries) { 334 if (sp->text) { 335 if (pos) { 336 pos->next = xcalloc(1, sizeof(*pos)); 337 pos = pos->next; 338 } else { 339 subtitles = pos = xcalloc(1, sizeof(*pos)); 340 } 341 pos->text = sp->text; 342 } 343 } 344 345 set_dialog_subtitles(subtitles); 346 } 347 348 static void reset_subtitle(void) 349 { 350 struct subtitle_list *pos, *tmp; 351 352 for (pos = subtitles; pos != NULL; pos = tmp) { 353 tmp = pos->next; 354 free(pos); 355 } 356 subtitles = NULL; 357 set_dialog_subtitles(subtitles); 358 } 359 360 struct search_data { 361 struct list_head *head; 362 struct menu **targets; 363 int *keys; 364 }; 365 366 static void update_text(char *buf, size_t start, size_t end, void *_data) 367 { 368 struct search_data *data = _data; 369 struct jump_key *pos; 370 int k = 0; 371 372 list_for_each_entry(pos, data->head, entries) { 373 if (pos->offset >= start && pos->offset < end) { 374 char header[4]; 375 376 if (k < JUMP_NB) { 377 int key = '0' + (pos->index % JUMP_NB) + 1; 378 379 sprintf(header, "(%c)", key); 380 data->keys[k] = key; 381 data->targets[k] = pos->target; 382 k++; 383 } else { 384 sprintf(header, " "); 385 } 386 387 memcpy(buf + pos->offset, header, sizeof(header) - 1); 388 } 389 } 390 data->keys[k] = 0; 391 } 392 393 static void search_conf(void) 394 { 395 struct symbol **sym_arr; 396 struct gstr res; 397 struct gstr title; 398 char *dialog_input; 399 int dres, vscroll = 0, hscroll = 0; 400 bool again; 401 struct gstr sttext; 402 struct subtitle_part stpart; 403 404 title = str_new(); 405 str_printf( &title, "Enter (sub)string or regexp to search for " 406 "(with or without \"%s\")", CONFIG_); 407 408 again: 409 dialog_clear(); 410 dres = dialog_inputbox("Search Configuration Parameter", 411 str_get(&title), 412 10, 75, ""); 413 switch (dres) { 414 case 0: 415 break; 416 case 1: 417 show_helptext("Search Configuration", search_help); 418 goto again; 419 default: 420 str_free(&title); 421 return; 422 } 423 424 /* strip the prefix if necessary */ 425 dialog_input = dialog_input_result; 426 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0) 427 dialog_input += strlen(CONFIG_); 428 429 sttext = str_new(); 430 str_printf(&sttext, "Search (%s)", dialog_input_result); 431 stpart.text = str_get(&sttext); 432 list_add_tail(&stpart.entries, &trail); 433 434 sym_arr = sym_re_search(dialog_input); 435 do { 436 LIST_HEAD(head); 437 struct menu *targets[JUMP_NB]; 438 int keys[JUMP_NB + 1], i; 439 struct search_data data = { 440 .head = &head, 441 .targets = targets, 442 .keys = keys, 443 }; 444 struct jump_key *pos, *tmp; 445 446 res = get_relations_str(sym_arr, &head); 447 set_subtitle(); 448 dres = show_textbox_ext("Search Results", (char *) 449 str_get(&res), 0, 0, keys, &vscroll, 450 &hscroll, &update_text, (void *) 451 &data); 452 again = false; 453 for (i = 0; i < JUMP_NB && keys[i]; i++) 454 if (dres == keys[i]) { 455 conf(targets[i]->parent, targets[i]); 456 again = true; 457 } 458 str_free(&res); 459 list_for_each_entry_safe(pos, tmp, &head, entries) 460 free(pos); 461 } while (again); 462 free(sym_arr); 463 str_free(&title); 464 list_del(trail.prev); 465 str_free(&sttext); 466 } 467 468 static void build_conf(struct menu *menu) 469 { 470 struct symbol *sym; 471 struct property *prop; 472 struct menu *child; 473 int type, tmp, doint = 2; 474 tristate val; 475 char ch; 476 bool visible; 477 478 /* 479 * note: menu_is_visible() has side effect that it will 480 * recalc the value of the symbol. 481 */ 482 visible = menu_is_visible(menu); 483 if (show_all_options && !menu_has_prompt(menu)) 484 return; 485 else if (!show_all_options && !visible) 486 return; 487 488 sym = menu->sym; 489 prop = menu->prompt; 490 if (!sym) { 491 if (prop && menu != current_menu) { 492 const char *prompt = menu_get_prompt(menu); 493 switch (prop->type) { 494 case P_MENU: 495 child_count++; 496 if (single_menu_mode) { 497 item_make("%s%*c%s", 498 menu->data ? "-->" : "++>", 499 indent + 1, ' ', prompt); 500 } else 501 item_make(" %*c%s %s", 502 indent + 1, ' ', prompt, 503 menu_is_empty(menu) ? "----" : "--->"); 504 item_set_tag('m'); 505 item_set_data(menu); 506 if (single_menu_mode && menu->data) 507 goto conf_childs; 508 return; 509 case P_COMMENT: 510 if (prompt) { 511 child_count++; 512 item_make(" %*c*** %s ***", indent + 1, ' ', prompt); 513 item_set_tag(':'); 514 item_set_data(menu); 515 } 516 break; 517 default: 518 if (prompt) { 519 child_count++; 520 item_make("---%*c%s", indent + 1, ' ', prompt); 521 item_set_tag(':'); 522 item_set_data(menu); 523 } 524 } 525 } else 526 doint = 0; 527 goto conf_childs; 528 } 529 530 type = sym_get_type(sym); 531 if (sym_is_choice(sym)) { 532 struct symbol *def_sym = sym_get_choice_value(sym); 533 struct menu *def_menu = NULL; 534 535 child_count++; 536 for (child = menu->list; child; child = child->next) { 537 if (menu_is_visible(child) && child->sym == def_sym) 538 def_menu = child; 539 } 540 541 val = sym_get_tristate_value(sym); 542 if (sym_is_changeable(sym)) { 543 switch (type) { 544 case S_BOOLEAN: 545 item_make("[%c]", val == no ? ' ' : '*'); 546 break; 547 case S_TRISTATE: 548 switch (val) { 549 case yes: ch = '*'; break; 550 case mod: ch = 'M'; break; 551 default: ch = ' '; break; 552 } 553 item_make("<%c>", ch); 554 break; 555 } 556 item_set_tag('t'); 557 item_set_data(menu); 558 } else { 559 item_make(" "); 560 item_set_tag(def_menu ? 't' : ':'); 561 item_set_data(menu); 562 } 563 564 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu)); 565 if (val == yes) { 566 if (def_menu) { 567 item_add_str(" (%s)", menu_get_prompt(def_menu)); 568 item_add_str(" --->"); 569 if (def_menu->list) { 570 indent += 2; 571 build_conf(def_menu); 572 indent -= 2; 573 } 574 } 575 return; 576 } 577 } else { 578 if (menu == current_menu) { 579 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu)); 580 item_set_tag(':'); 581 item_set_data(menu); 582 goto conf_childs; 583 } 584 child_count++; 585 val = sym_get_tristate_value(sym); 586 if (sym_is_choice_value(sym) && val == yes) { 587 item_make(" "); 588 item_set_tag(':'); 589 item_set_data(menu); 590 } else { 591 switch (type) { 592 case S_BOOLEAN: 593 if (sym_is_changeable(sym)) 594 item_make("[%c]", val == no ? ' ' : '*'); 595 else 596 item_make("-%c-", val == no ? ' ' : '*'); 597 item_set_tag('t'); 598 item_set_data(menu); 599 break; 600 case S_TRISTATE: 601 switch (val) { 602 case yes: ch = '*'; break; 603 case mod: ch = 'M'; break; 604 default: ch = ' '; break; 605 } 606 if (sym_is_changeable(sym)) { 607 if (sym->rev_dep.tri == mod) 608 item_make("{%c}", ch); 609 else 610 item_make("<%c>", ch); 611 } else 612 item_make("-%c-", ch); 613 item_set_tag('t'); 614 item_set_data(menu); 615 break; 616 default: 617 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */ 618 item_make("(%s)", sym_get_string_value(sym)); 619 tmp = indent - tmp + 4; 620 if (tmp < 0) 621 tmp = 0; 622 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu), 623 (sym_has_value(sym) || !sym_is_changeable(sym)) ? 624 "" : " (NEW)"); 625 item_set_tag('s'); 626 item_set_data(menu); 627 goto conf_childs; 628 } 629 } 630 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu), 631 (sym_has_value(sym) || !sym_is_changeable(sym)) ? 632 "" : " (NEW)"); 633 if (menu->prompt->type == P_MENU) { 634 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->"); 635 return; 636 } 637 } 638 639 conf_childs: 640 indent += doint; 641 for (child = menu->list; child; child = child->next) 642 build_conf(child); 643 indent -= doint; 644 } 645 646 static void conf(struct menu *menu, struct menu *active_menu) 647 { 648 struct menu *submenu; 649 const char *prompt = menu_get_prompt(menu); 650 struct subtitle_part stpart; 651 struct symbol *sym; 652 int res; 653 int s_scroll = 0; 654 655 if (menu != &rootmenu) 656 stpart.text = menu_get_prompt(menu); 657 else 658 stpart.text = NULL; 659 list_add_tail(&stpart.entries, &trail); 660 661 while (1) { 662 item_reset(); 663 current_menu = menu; 664 build_conf(menu); 665 if (!child_count) 666 break; 667 set_subtitle(); 668 dialog_clear(); 669 res = dialog_menu(prompt ? prompt : "Main Menu", 670 menu_instructions, 671 active_menu, &s_scroll); 672 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL) 673 break; 674 if (item_count() != 0) { 675 if (!item_activate_selected()) 676 continue; 677 if (!item_tag()) 678 continue; 679 } 680 submenu = item_data(); 681 active_menu = item_data(); 682 if (submenu) 683 sym = submenu->sym; 684 else 685 sym = NULL; 686 687 switch (res) { 688 case 0: 689 switch (item_tag()) { 690 case 'm': 691 if (single_menu_mode) 692 submenu->data = (void *) (long) !submenu->data; 693 else 694 conf(submenu, NULL); 695 break; 696 case 't': 697 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes) 698 conf_choice(submenu); 699 else if (submenu->prompt->type == P_MENU) 700 conf(submenu, NULL); 701 break; 702 case 's': 703 conf_string(submenu); 704 break; 705 } 706 break; 707 case 2: 708 if (sym) 709 show_help(submenu); 710 else { 711 reset_subtitle(); 712 show_helptext("README", mconf_readme); 713 } 714 break; 715 case 3: 716 reset_subtitle(); 717 conf_save(); 718 break; 719 case 4: 720 reset_subtitle(); 721 conf_load(); 722 break; 723 case 5: 724 if (item_is_tag('t')) { 725 if (sym_set_tristate_value(sym, yes)) 726 break; 727 if (sym_set_tristate_value(sym, mod)) 728 show_textbox(NULL, setmod_text, 6, 74); 729 } 730 break; 731 case 6: 732 if (item_is_tag('t')) 733 sym_set_tristate_value(sym, no); 734 break; 735 case 7: 736 if (item_is_tag('t')) 737 sym_set_tristate_value(sym, mod); 738 break; 739 case 8: 740 if (item_is_tag('t')) 741 sym_toggle_tristate_value(sym); 742 else if (item_is_tag('m')) 743 conf(submenu, NULL); 744 break; 745 case 9: 746 search_conf(); 747 break; 748 case 10: 749 show_all_options = !show_all_options; 750 break; 751 } 752 } 753 754 list_del(trail.prev); 755 } 756 757 static int show_textbox_ext(const char *title, char *text, int r, int c, int 758 *keys, int *vscroll, int *hscroll, update_text_fn 759 update_text, void *data) 760 { 761 dialog_clear(); 762 return dialog_textbox(title, text, r, c, keys, vscroll, hscroll, 763 update_text, data); 764 } 765 766 static void show_textbox(const char *title, const char *text, int r, int c) 767 { 768 show_textbox_ext(title, (char *) text, r, c, (int []) {0}, NULL, NULL, 769 NULL, NULL); 770 } 771 772 static void show_helptext(const char *title, const char *text) 773 { 774 show_textbox(title, text, 0, 0); 775 } 776 777 static void conf_message_callback(const char *s) 778 { 779 if (save_and_exit) { 780 if (!silent) 781 printf("%s", s); 782 } else { 783 show_textbox(NULL, s, 6, 60); 784 } 785 } 786 787 static void show_help(struct menu *menu) 788 { 789 struct gstr help = str_new(); 790 791 help.max_width = getmaxx(stdscr) - 10; 792 menu_get_ext_help(menu, &help); 793 794 show_helptext(menu_get_prompt(menu), str_get(&help)); 795 str_free(&help); 796 } 797 798 static void conf_choice(struct menu *menu) 799 { 800 const char *prompt = menu_get_prompt(menu); 801 struct menu *child; 802 struct symbol *active; 803 804 active = sym_get_choice_value(menu->sym); 805 while (1) { 806 int res; 807 int selected; 808 item_reset(); 809 810 current_menu = menu; 811 for (child = menu->list; child; child = child->next) { 812 if (!menu_is_visible(child)) 813 continue; 814 if (child->sym) 815 item_make("%s", menu_get_prompt(child)); 816 else { 817 item_make("*** %s ***", menu_get_prompt(child)); 818 item_set_tag(':'); 819 } 820 item_set_data(child); 821 if (child->sym == active) 822 item_set_selected(1); 823 if (child->sym == sym_get_choice_value(menu->sym)) 824 item_set_tag('X'); 825 } 826 dialog_clear(); 827 res = dialog_checklist(prompt ? prompt : "Main Menu", 828 radiolist_instructions, 829 MENUBOX_HEIGTH_MIN, 830 MENUBOX_WIDTH_MIN, 831 CHECKLIST_HEIGTH_MIN); 832 selected = item_activate_selected(); 833 switch (res) { 834 case 0: 835 if (selected) { 836 child = item_data(); 837 if (!child->sym) 838 break; 839 840 sym_set_tristate_value(child->sym, yes); 841 } 842 return; 843 case 1: 844 if (selected) { 845 child = item_data(); 846 show_help(child); 847 active = child->sym; 848 } else 849 show_help(menu); 850 break; 851 case KEY_ESC: 852 return; 853 case -ERRDISPLAYTOOSMALL: 854 return; 855 } 856 } 857 } 858 859 static void conf_string(struct menu *menu) 860 { 861 const char *prompt = menu_get_prompt(menu); 862 863 while (1) { 864 int res; 865 const char *heading; 866 867 switch (sym_get_type(menu->sym)) { 868 case S_INT: 869 heading = inputbox_instructions_int; 870 break; 871 case S_HEX: 872 heading = inputbox_instructions_hex; 873 break; 874 case S_STRING: 875 heading = inputbox_instructions_string; 876 break; 877 default: 878 heading = "Internal mconf error!"; 879 } 880 dialog_clear(); 881 res = dialog_inputbox(prompt ? prompt : "Main Menu", 882 heading, 10, 75, 883 sym_get_string_value(menu->sym)); 884 switch (res) { 885 case 0: 886 if (sym_set_string_value(menu->sym, dialog_input_result)) 887 return; 888 show_textbox(NULL, "You have made an invalid entry.", 5, 43); 889 break; 890 case 1: 891 show_help(menu); 892 break; 893 case KEY_ESC: 894 return; 895 } 896 } 897 } 898 899 static void conf_load(void) 900 { 901 902 while (1) { 903 int res; 904 dialog_clear(); 905 res = dialog_inputbox(NULL, load_config_text, 906 11, 55, filename); 907 switch(res) { 908 case 0: 909 if (!dialog_input_result[0]) 910 return; 911 if (!conf_read(dialog_input_result)) { 912 set_config_filename(dialog_input_result); 913 sym_set_change_count(1); 914 return; 915 } 916 show_textbox(NULL, "File does not exist!", 5, 38); 917 break; 918 case 1: 919 show_helptext("Load Alternate Configuration", load_config_help); 920 break; 921 case KEY_ESC: 922 return; 923 } 924 } 925 } 926 927 static void conf_save(void) 928 { 929 while (1) { 930 int res; 931 dialog_clear(); 932 res = dialog_inputbox(NULL, save_config_text, 933 11, 55, filename); 934 switch(res) { 935 case 0: 936 if (!dialog_input_result[0]) 937 return; 938 if (!conf_write(dialog_input_result)) { 939 set_config_filename(dialog_input_result); 940 return; 941 } 942 show_textbox(NULL, "Can't create file!", 5, 60); 943 break; 944 case 1: 945 show_helptext("Save Alternate Configuration", save_config_help); 946 break; 947 case KEY_ESC: 948 return; 949 } 950 } 951 } 952 953 static int handle_exit(void) 954 { 955 int res; 956 957 save_and_exit = 1; 958 reset_subtitle(); 959 dialog_clear(); 960 if (conf_get_changed()) 961 res = dialog_yesno(NULL, 962 "Do you wish to save your new configuration?\n" 963 "(Press <ESC><ESC> to continue kernel configuration.)", 964 6, 60); 965 else 966 res = -1; 967 968 end_dialog(saved_x, saved_y); 969 970 switch (res) { 971 case 0: 972 if (conf_write(filename)) { 973 fprintf(stderr, "\n\n" 974 "Error while writing of the configuration.\n" 975 "Your configuration changes were NOT saved." 976 "\n\n"); 977 return 1; 978 } 979 conf_write_autoconf(0); 980 /* fall through */ 981 case -1: 982 if (!silent) 983 printf("\n\n" 984 "*** End of the configuration.\n" 985 "*** Execute 'make' to start the build or try 'make help'." 986 "\n\n"); 987 res = 0; 988 break; 989 default: 990 if (!silent) 991 fprintf(stderr, "\n\n" 992 "Your configuration changes were NOT saved." 993 "\n\n"); 994 if (res != KEY_ESC) 995 res = 0; 996 } 997 998 return res; 999 } 1000 1001 static void sig_handler(int signo) 1002 { 1003 exit(handle_exit()); 1004 } 1005 1006 int main(int ac, char **av) 1007 { 1008 char *mode; 1009 int res; 1010 1011 signal(SIGINT, sig_handler); 1012 1013 if (ac > 1 && strcmp(av[1], "-s") == 0) { 1014 silent = 1; 1015 /* Silence conf_read() until the real callback is set up */ 1016 conf_set_message_callback(NULL); 1017 av++; 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, "Your display is too small to run Menuconfig!\n"); 1030 fprintf(stderr, "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 } 1043