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 "list.h" 23#include "lkc.h" 24#include "lxdialog/dialog.h" 25#include "mnconf-common.h" 26 27static 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" 164 165"Search\n" 166"-------\n" 167"Pressing the forward-slash (/) anywhere brings up a search dialog box.\n" 168"\n" 169 170"Different color themes available\n" 171"--------------------------------\n" 172"It is possible to select different color themes using the variable\n" 173"MENUCONFIG_COLOR. To select a theme use:\n" 174"\n" 175"make MENUCONFIG_COLOR=<theme> menuconfig\n" 176"\n" 177"Available themes are\n" 178" mono => selects colors suitable for monochrome displays\n" 179" blackbg => selects a color scheme with black background\n" 180" classic => theme with blue background. The classic look\n" 181" bluetitle => an LCD friendly version of classic. (default)\n" 182"\n", 183menu_instructions[] = 184 "Arrow keys navigate the menu. " 185 "<Enter> selects submenus ---> (or empty submenus ----). " 186 "Highlighted letters are hotkeys. " 187 "Pressing <Y> includes, <N> excludes, <M> modularizes features. " 188 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. " 189 "Legend: [*] built-in [ ] excluded <M> module < > module capable", 190radiolist_instructions[] = 191 "Use the arrow keys to navigate this window or " 192 "press the hotkey of the item you wish to select " 193 "followed by the <SPACE BAR>. " 194 "Press <?> for additional information about this option.", 195inputbox_instructions_int[] = 196 "Please enter a decimal value. " 197 "Fractions will not be accepted. " 198 "Use the <TAB> key to move from the input field to the buttons below it.", 199inputbox_instructions_hex[] = 200 "Please enter a hexadecimal value. " 201 "Use the <TAB> key to move from the input field to the buttons below it.", 202inputbox_instructions_string[] = 203 "Please enter a string value. " 204 "Use the <TAB> key to move from the input field to the buttons below it.", 205setmod_text[] = 206 "This feature depends on another which has been configured as a module.\n" 207 "As a result, this feature will be built as a module.", 208load_config_text[] = 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.", 212load_config_help[] = 213 "\n" 214 "For various reasons, one may wish to keep several different\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 "default one, entering its name here will allow you to modify that\n" 219 "configuration.\n" 220 "\n" 221 "If you are uncertain, then you have probably never used alternate\n" 222 "configuration files. You should therefore leave this blank to abort.\n", 223save_config_text[] = 224 "Enter a filename to which this configuration should be saved " 225 "as an alternate. Leave blank to abort.", 226save_config_help[] = 227 "\n" 228 "For various reasons, one may wish to keep different configurations\n" 229 "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", 237search_help[] = 238 "\n" 239 "Search for 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 "Type : tristate\n" 246 "Prompt: Foo bus is used to drive the bar HW\n" 247 " Location:\n" 248 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n" 249 " -> PCI support (PCI [=y])\n" 250 "(1) -> PCI access mode (<choice> [=y])\n" 251 " Defined at drivers/pci/Kconfig:47\n" 252 " Depends on: X86_LOCAL_APIC && X86_IO_APIC\n" 253 " Selects: LIBCRC32\n" 254 " Selected by: BAR [=n]\n" 255 "-----------------------------------------------------------------\n" 256 "o The line 'Type:' shows the type of the configuration option for\n" 257 " this symbol (bool, tristate, string, ...)\n" 258 "o The line 'Prompt:' shows the text used in the menu structure for\n" 259 " this symbol\n" 260 "o The 'Defined at' line tells at what file / line number the symbol\n" 261 " is defined\n" 262 "o The 'Depends on:' line tells what symbols need to be defined for\n" 263 " this symbol to be visible in the menu (selectable)\n" 264 "o The 'Location:' lines tells where in the menu structure this symbol\n" 265 " is located\n" 266 " A location followed by a [=y] indicates that this is a\n" 267 " selectable menu item - and the current value is displayed inside\n" 268 " brackets.\n" 269 " Press the key in the (#) prefix to jump directly to that\n" 270 " location. You will be returned to the current search results\n" 271 " after exiting this new menu.\n" 272 "o The 'Selects:' line tells what symbols will be automatically\n" 273 " selected if this symbol is selected (y or m)\n" 274 "o The 'Selected by' line tells what symbol has selected this symbol\n" 275 "\n" 276 "Only relevant lines are shown.\n" 277 "\n\n" 278 "Search examples:\n" 279 "Examples: USB => find all symbols containing USB\n" 280 " ^USB => find all symbols starting with USB\n" 281 " USB$ => find all symbols ending with USB\n" 282 "\n"; 283 284static int indent; 285static struct menu *current_menu; 286static int child_count; 287static int single_menu_mode; 288static int show_all_options; 289static int save_and_exit; 290static int silent; 291 292static void conf(struct menu *menu, struct menu *active_menu); 293 294static char filename[PATH_MAX+1]; 295static void set_config_filename(const char *config_filename) 296{ 297 static char menu_backtitle[PATH_MAX+128]; 298 299 snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s", 300 config_filename, rootmenu.prompt->text); 301 set_dialog_backtitle(menu_backtitle); 302 303 snprintf(filename, sizeof(filename), "%s", config_filename); 304} 305 306struct subtitle_part { 307 struct list_head entries; 308 const char *text; 309}; 310static LIST_HEAD(trail); 311 312static struct subtitle_list *subtitles; 313static void set_subtitle(void) 314{ 315 struct subtitle_part *sp; 316 struct subtitle_list *pos, *tmp; 317 318 for (pos = subtitles; pos != NULL; pos = tmp) { 319 tmp = pos->next; 320 free(pos); 321 } 322 323 subtitles = NULL; 324 list_for_each_entry(sp, &trail, entries) { 325 if (sp->text) { 326 if (pos) { 327 pos->next = xcalloc(1, sizeof(*pos)); 328 pos = pos->next; 329 } else { 330 subtitles = pos = xcalloc(1, sizeof(*pos)); 331 } 332 pos->text = sp->text; 333 } 334 } 335 336 set_dialog_subtitles(subtitles); 337} 338 339static void reset_subtitle(void) 340{ 341 struct subtitle_list *pos, *tmp; 342 343 for (pos = subtitles; pos != NULL; pos = tmp) { 344 tmp = pos->next; 345 free(pos); 346 } 347 subtitles = NULL; 348 set_dialog_subtitles(subtitles); 349} 350 351static int show_textbox_ext(const char *title, const char *text, int r, int c, 352 int *vscroll, int *hscroll, 353 int (*extra_key_cb)(int, size_t, size_t, void *), 354 void *data) 355{ 356 dialog_clear(); 357 return dialog_textbox(title, text, r, c, vscroll, hscroll, 358 extra_key_cb, data); 359} 360 361static void show_textbox(const char *title, const char *text, int r, int c) 362{ 363 show_textbox_ext(title, text, r, c, NULL, NULL, NULL, NULL); 364} 365 366static void show_helptext(const char *title, const char *text) 367{ 368 show_textbox(title, text, 0, 0); 369} 370 371static void show_help(struct menu *menu) 372{ 373 struct gstr help = str_new(); 374 375 help.max_width = getmaxx(stdscr) - 10; 376 menu_get_ext_help(menu, &help); 377 378 show_helptext(menu_get_prompt(menu), str_get(&help)); 379 str_free(&help); 380} 381 382static void search_conf(void) 383{ 384 struct symbol **sym_arr; 385 struct gstr res; 386 struct gstr title; 387 char *dialog_input; 388 int dres, vscroll = 0, hscroll = 0; 389 bool again; 390 struct gstr sttext; 391 struct subtitle_part stpart; 392 393 title = str_new(); 394 str_printf( &title, "Enter (sub)string or regexp to search for " 395 "(with or without \"%s\")", CONFIG_); 396 397again: 398 dialog_clear(); 399 dres = dialog_inputbox("Search Configuration Parameter", 400 str_get(&title), 401 10, 75, ""); 402 switch (dres) { 403 case 0: 404 break; 405 case 1: 406 show_helptext("Search Configuration", search_help); 407 goto again; 408 default: 409 str_free(&title); 410 return; 411 } 412 413 /* strip the prefix if necessary */ 414 dialog_input = dialog_input_result; 415 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0) 416 dialog_input += strlen(CONFIG_); 417 418 sttext = str_new(); 419 str_printf(&sttext, "Search (%s)", dialog_input_result); 420 stpart.text = str_get(&sttext); 421 list_add_tail(&stpart.entries, &trail); 422 423 sym_arr = sym_re_search(dialog_input); 424 do { 425 LIST_HEAD(head); 426 struct search_data data = { 427 .head = &head, 428 }; 429 struct jump_key *pos, *tmp; 430 431 jump_key_char = 0; 432 res = get_relations_str(sym_arr, &head); 433 set_subtitle(); 434 dres = show_textbox_ext("Search Results", str_get(&res), 0, 0, 435 &vscroll, &hscroll, 436 handle_search_keys, &data); 437 again = false; 438 if (dres >= '1' && dres <= '9') { 439 assert(data.target != NULL); 440 conf(data.target->parent, data.target); 441 again = true; 442 } 443 str_free(&res); 444 list_for_each_entry_safe(pos, tmp, &head, entries) 445 free(pos); 446 } while (again); 447 free(sym_arr); 448 str_free(&title); 449 list_del(trail.prev); 450 str_free(&sttext); 451} 452 453static void build_conf(struct menu *menu) 454{ 455 struct symbol *sym; 456 struct property *prop; 457 struct menu *child; 458 int type, tmp, doint = 2; 459 tristate val; 460 char ch; 461 bool visible; 462 463 /* 464 * note: menu_is_visible() has side effect that it will 465 * recalc the value of the symbol. 466 */ 467 visible = menu_is_visible(menu); 468 if (show_all_options && !menu_has_prompt(menu)) 469 return; 470 else if (!show_all_options && !visible) 471 return; 472 473 sym = menu->sym; 474 prop = menu->prompt; 475 if (!sym) { 476 if (prop && menu != current_menu) { 477 const char *prompt = menu_get_prompt(menu); 478 switch (prop->type) { 479 case P_MENU: 480 child_count++; 481 if (single_menu_mode) { 482 item_make("%s%*c%s", 483 menu->data ? "-->" : "++>", 484 indent + 1, ' ', prompt); 485 } else 486 item_make(" %*c%s %s", 487 indent + 1, ' ', prompt, 488 menu_is_empty(menu) ? "----" : "--->"); 489 item_set_tag('m'); 490 item_set_data(menu); 491 if (single_menu_mode && menu->data) 492 goto conf_childs; 493 return; 494 case P_COMMENT: 495 if (prompt) { 496 child_count++; 497 item_make(" %*c*** %s ***", indent + 1, ' ', prompt); 498 item_set_tag(':'); 499 item_set_data(menu); 500 } 501 break; 502 default: 503 if (prompt) { 504 child_count++; 505 item_make("---%*c%s", indent + 1, ' ', prompt); 506 item_set_tag(':'); 507 item_set_data(menu); 508 } 509 } 510 } else 511 doint = 0; 512 goto conf_childs; 513 } 514 515 type = sym_get_type(sym); 516 if (sym_is_choice(sym)) { 517 struct symbol *def_sym = sym_get_choice_value(sym); 518 struct menu *def_menu = NULL; 519 520 child_count++; 521 for (child = menu->list; child; child = child->next) { 522 if (menu_is_visible(child) && child->sym == def_sym) 523 def_menu = child; 524 } 525 526 val = sym_get_tristate_value(sym); 527 if (sym_is_changeable(sym)) { 528 switch (type) { 529 case S_BOOLEAN: 530 item_make("[%c]", val == no ? ' ' : '*'); 531 break; 532 case S_TRISTATE: 533 switch (val) { 534 case yes: ch = '*'; break; 535 case mod: ch = 'M'; break; 536 default: ch = ' '; break; 537 } 538 item_make("<%c>", ch); 539 break; 540 } 541 item_set_tag('t'); 542 item_set_data(menu); 543 } else { 544 item_make(" "); 545 item_set_tag(def_menu ? 't' : ':'); 546 item_set_data(menu); 547 } 548 549 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu)); 550 if (val == yes) { 551 if (def_menu) { 552 item_add_str(" (%s)", menu_get_prompt(def_menu)); 553 item_add_str(" --->"); 554 if (def_menu->list) { 555 indent += 2; 556 build_conf(def_menu); 557 indent -= 2; 558 } 559 } 560 return; 561 } 562 } else { 563 if (menu == current_menu) { 564 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu)); 565 item_set_tag(':'); 566 item_set_data(menu); 567 goto conf_childs; 568 } 569 child_count++; 570 val = sym_get_tristate_value(sym); 571 if (sym_is_choice_value(sym) && val == yes) { 572 item_make(" "); 573 item_set_tag(':'); 574 item_set_data(menu); 575 } else { 576 switch (type) { 577 case S_BOOLEAN: 578 if (sym_is_changeable(sym)) 579 item_make("[%c]", val == no ? ' ' : '*'); 580 else 581 item_make("-%c-", val == no ? ' ' : '*'); 582 item_set_tag('t'); 583 item_set_data(menu); 584 break; 585 case S_TRISTATE: 586 switch (val) { 587 case yes: ch = '*'; break; 588 case mod: ch = 'M'; break; 589 default: ch = ' '; break; 590 } 591 if (sym_is_changeable(sym)) { 592 if (sym->rev_dep.tri == mod) 593 item_make("{%c}", ch); 594 else 595 item_make("<%c>", ch); 596 } else 597 item_make("-%c-", ch); 598 item_set_tag('t'); 599 item_set_data(menu); 600 break; 601 default: 602 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */ 603 item_make("(%s)", sym_get_string_value(sym)); 604 tmp = indent - tmp + 4; 605 if (tmp < 0) 606 tmp = 0; 607 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu), 608 (sym_has_value(sym) || !sym_is_changeable(sym)) ? 609 "" : " (NEW)"); 610 item_set_tag('s'); 611 item_set_data(menu); 612 goto conf_childs; 613 } 614 } 615 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu), 616 (sym_has_value(sym) || !sym_is_changeable(sym)) ? 617 "" : " (NEW)"); 618 if (menu->prompt->type == P_MENU) { 619 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->"); 620 return; 621 } 622 } 623 624conf_childs: 625 indent += doint; 626 for (child = menu->list; child; child = child->next) 627 build_conf(child); 628 indent -= doint; 629} 630 631static void conf_choice(struct menu *menu) 632{ 633 const char *prompt = menu_get_prompt(menu); 634 struct menu *child; 635 struct symbol *active; 636 637 active = sym_get_choice_value(menu->sym); 638 while (1) { 639 int res; 640 int selected; 641 item_reset(); 642 643 current_menu = menu; 644 for (child = menu->list; child; child = child->next) { 645 if (!menu_is_visible(child)) 646 continue; 647 if (child->sym) 648 item_make("%s", menu_get_prompt(child)); 649 else { 650 item_make("*** %s ***", menu_get_prompt(child)); 651 item_set_tag(':'); 652 } 653 item_set_data(child); 654 if (child->sym == active) 655 item_set_selected(1); 656 if (child->sym == sym_get_choice_value(menu->sym)) 657 item_set_tag('X'); 658 } 659 dialog_clear(); 660 res = dialog_checklist(prompt ? prompt : "Main Menu", 661 radiolist_instructions, 662 MENUBOX_HEIGHT_MIN, 663 MENUBOX_WIDTH_MIN, 664 CHECKLIST_HEIGHT_MIN); 665 selected = item_activate_selected(); 666 switch (res) { 667 case 0: 668 if (selected) { 669 child = item_data(); 670 if (!child->sym) 671 break; 672 673 sym_set_tristate_value(child->sym, yes); 674 } 675 return; 676 case 1: 677 if (selected) { 678 child = item_data(); 679 show_help(child); 680 active = child->sym; 681 } else 682 show_help(menu); 683 break; 684 case KEY_ESC: 685 return; 686 case -ERRDISPLAYTOOSMALL: 687 return; 688 } 689 } 690} 691 692static void conf_string(struct menu *menu) 693{ 694 const char *prompt = menu_get_prompt(menu); 695 696 while (1) { 697 int res; 698 const char *heading; 699 700 switch (sym_get_type(menu->sym)) { 701 case S_INT: 702 heading = inputbox_instructions_int; 703 break; 704 case S_HEX: 705 heading = inputbox_instructions_hex; 706 break; 707 case S_STRING: 708 heading = inputbox_instructions_string; 709 break; 710 default: 711 heading = "Internal mconf error!"; 712 } 713 dialog_clear(); 714 res = dialog_inputbox(prompt ? prompt : "Main Menu", 715 heading, 10, 75, 716 sym_get_string_value(menu->sym)); 717 switch (res) { 718 case 0: 719 if (sym_set_string_value(menu->sym, dialog_input_result)) 720 return; 721 show_textbox(NULL, "You have made an invalid entry.", 5, 43); 722 break; 723 case 1: 724 show_help(menu); 725 break; 726 case KEY_ESC: 727 return; 728 } 729 } 730} 731 732static void conf_load(void) 733{ 734 735 while (1) { 736 int res; 737 dialog_clear(); 738 res = dialog_inputbox(NULL, load_config_text, 739 11, 55, filename); 740 switch(res) { 741 case 0: 742 if (!dialog_input_result[0]) 743 return; 744 if (!conf_read(dialog_input_result)) { 745 set_config_filename(dialog_input_result); 746 conf_set_changed(true); 747 return; 748 } 749 show_textbox(NULL, "File does not exist!", 5, 38); 750 break; 751 case 1: 752 show_helptext("Load Alternate Configuration", load_config_help); 753 break; 754 case KEY_ESC: 755 return; 756 } 757 } 758} 759 760static void conf_save(void) 761{ 762 while (1) { 763 int res; 764 dialog_clear(); 765 res = dialog_inputbox(NULL, save_config_text, 766 11, 55, filename); 767 switch(res) { 768 case 0: 769 if (!dialog_input_result[0]) 770 return; 771 if (!conf_write(dialog_input_result)) { 772 set_config_filename(dialog_input_result); 773 return; 774 } 775 show_textbox(NULL, "Can't create file!", 5, 60); 776 break; 777 case 1: 778 show_helptext("Save Alternate Configuration", save_config_help); 779 break; 780 case KEY_ESC: 781 return; 782 } 783 } 784} 785 786static void conf(struct menu *menu, struct menu *active_menu) 787{ 788 struct menu *submenu; 789 const char *prompt = menu_get_prompt(menu); 790 struct subtitle_part stpart; 791 struct symbol *sym; 792 int res; 793 int s_scroll = 0; 794 795 if (menu != &rootmenu) 796 stpart.text = menu_get_prompt(menu); 797 else 798 stpart.text = NULL; 799 list_add_tail(&stpart.entries, &trail); 800 801 while (1) { 802 item_reset(); 803 current_menu = menu; 804 build_conf(menu); 805 if (!child_count) 806 break; 807 set_subtitle(); 808 dialog_clear(); 809 res = dialog_menu(prompt ? prompt : "Main Menu", 810 menu_instructions, 811 active_menu, &s_scroll); 812 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL) 813 break; 814 if (item_count() != 0) { 815 if (!item_activate_selected()) 816 continue; 817 if (!item_tag()) 818 continue; 819 } 820 submenu = item_data(); 821 active_menu = item_data(); 822 if (submenu) 823 sym = submenu->sym; 824 else 825 sym = NULL; 826 827 switch (res) { 828 case 0: 829 switch (item_tag()) { 830 case 'm': 831 if (single_menu_mode) 832 submenu->data = (void *) (long) !submenu->data; 833 else 834 conf(submenu, NULL); 835 break; 836 case 't': 837 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes) 838 conf_choice(submenu); 839 else if (submenu->prompt->type == P_MENU) 840 conf(submenu, NULL); 841 break; 842 case 's': 843 conf_string(submenu); 844 break; 845 } 846 break; 847 case 2: 848 if (sym) 849 show_help(submenu); 850 else { 851 reset_subtitle(); 852 show_helptext("README", mconf_readme); 853 } 854 break; 855 case 3: 856 reset_subtitle(); 857 conf_save(); 858 break; 859 case 4: 860 reset_subtitle(); 861 conf_load(); 862 break; 863 case 5: 864 if (item_is_tag('t')) { 865 if (sym_set_tristate_value(sym, yes)) 866 break; 867 if (sym_set_tristate_value(sym, mod)) 868 show_textbox(NULL, setmod_text, 6, 74); 869 } 870 break; 871 case 6: 872 if (item_is_tag('t')) 873 sym_set_tristate_value(sym, no); 874 break; 875 case 7: 876 if (item_is_tag('t')) 877 sym_set_tristate_value(sym, mod); 878 break; 879 case 8: 880 if (item_is_tag('t')) 881 sym_toggle_tristate_value(sym); 882 else if (item_is_tag('m')) 883 conf(submenu, NULL); 884 break; 885 case 9: 886 search_conf(); 887 break; 888 case 10: 889 show_all_options = !show_all_options; 890 break; 891 } 892 } 893 894 list_del(trail.prev); 895} 896 897static void conf_message_callback(const char *s) 898{ 899 if (save_and_exit) { 900 if (!silent) 901 printf("%s", s); 902 } else { 903 show_textbox(NULL, s, 6, 60); 904 } 905} 906 907static int handle_exit(void) 908{ 909 int res; 910 911 save_and_exit = 1; 912 reset_subtitle(); 913 dialog_clear(); 914 if (conf_get_changed()) 915 res = dialog_yesno(NULL, 916 "Do you wish to save your new configuration?\n" 917 "(Press <ESC><ESC> to continue kernel configuration.)", 918 6, 60); 919 else 920 res = -1; 921 922 end_dialog(saved_x, saved_y); 923 924 switch (res) { 925 case 0: 926 if (conf_write(filename)) { 927 fprintf(stderr, "\n\n" 928 "Error while writing of the configuration.\n" 929 "Your configuration changes were NOT saved." 930 "\n\n"); 931 return 1; 932 } 933 conf_write_autoconf(0); 934 /* fall through */ 935 case -1: 936 if (!silent) 937 printf("\n\n" 938 "*** End of the configuration.\n" 939 "*** Execute 'make' to start the build or try 'make help'." 940 "\n\n"); 941 res = 0; 942 break; 943 default: 944 if (!silent) 945 fprintf(stderr, "\n\n" 946 "Your configuration changes were NOT saved." 947 "\n\n"); 948 if (res != KEY_ESC) 949 res = 0; 950 } 951 952 return res; 953} 954 955static void sig_handler(int signo) 956{ 957 exit(handle_exit()); 958} 959 960int main(int ac, char **av) 961{ 962 char *mode; 963 int res; 964 965 signal(SIGINT, sig_handler); 966 967 if (ac > 1 && strcmp(av[1], "-s") == 0) { 968 silent = 1; 969 /* Silence conf_read() until the real callback is set up */ 970 conf_set_message_callback(NULL); 971 av++; 972 } 973 conf_parse(av[1]); 974 conf_read(NULL); 975 976 mode = getenv("MENUCONFIG_MODE"); 977 if (mode) { 978 if (!strcasecmp(mode, "single_menu")) 979 single_menu_mode = 1; 980 } 981 982 if (init_dialog(NULL)) { 983 fprintf(stderr, "Your display is too small to run Menuconfig!\n"); 984 fprintf(stderr, "It must be at least 19 lines by 80 columns.\n"); 985 return 1; 986 } 987 988 set_config_filename(conf_get_configname()); 989 conf_set_message_callback(conf_message_callback); 990 do { 991 conf(&rootmenu, NULL); 992 res = handle_exit(); 993 } while (res == KEY_ESC); 994 995 return res; 996} 997