1 /*- 2 * Copyright (c) 2002 Jonathan Belson <jon@witchspace.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/types.h> 31 #include <sys/queue.h> 32 33 #include <assert.h> 34 #include <ctype.h> 35 #include <dirent.h> 36 #include <limits.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <stringlist.h> 41 #include <unistd.h> 42 43 #include "kbdmap.h" 44 45 46 static const char *lang_default = DEFAULT_LANG; 47 static const char *font; 48 static const char *lang; 49 static const char *program; 50 static const char *keymapdir = DEFAULT_KEYMAP_DIR; 51 static const char *fontdir = DEFAULT_FONT_DIR; 52 static const char *sysconfig = DEFAULT_SYSCONFIG; 53 static const char *font_default = DEFAULT_FONT; 54 static const char *font_current; 55 static const char *dir; 56 static const char *menu = ""; 57 58 static int x11; 59 static int show; 60 static int verbose; 61 static int print; 62 63 64 struct keymap { 65 char *desc; 66 char *keym; 67 int mark; 68 SLIST_ENTRY(keymap) entries; 69 }; 70 static SLIST_HEAD(slisthead, keymap) head = SLIST_HEAD_INITIALIZER(head); 71 72 73 /* 74 * Get keymap entry for 'key', or NULL of not found 75 */ 76 static struct keymap * 77 get_keymap(const char *key) 78 { 79 struct keymap *km; 80 81 SLIST_FOREACH(km, &head, entries) 82 if (!strcmp(km->keym, key)) 83 return km; 84 85 return NULL; 86 } 87 88 /* 89 * Count the number of keymaps we found 90 */ 91 static int 92 get_num_keymaps(void) 93 { 94 struct keymap *km; 95 int count = 0; 96 97 SLIST_FOREACH(km, &head, entries) 98 count++; 99 100 return count; 101 } 102 103 /* 104 * Remove any keymap with given keym 105 */ 106 static void 107 remove_keymap(const char *keym) 108 { 109 struct keymap *km; 110 111 SLIST_FOREACH(km, &head, entries) { 112 if (!strcmp(keym, km->keym)) { 113 SLIST_REMOVE(&head, km, keymap, entries); 114 free(km); 115 break; 116 } 117 } 118 } 119 120 /* 121 * Add to hash with 'key' 122 */ 123 static void 124 add_keymap(const char *desc, int mark, const char *keym) 125 { 126 struct keymap *km, *km_new; 127 128 /* Is there already an entry with this key? */ 129 SLIST_FOREACH(km, &head, entries) { 130 if (!strcmp(km->keym, keym)) { 131 /* Reuse this entry */ 132 free(km->desc); 133 km->desc = strdup(desc); 134 km->mark = mark; 135 return; 136 } 137 } 138 139 km_new = (struct keymap *) malloc (sizeof(struct keymap)); 140 km_new->desc = strdup(desc); 141 km_new->keym = strdup(keym); 142 km_new->mark = mark; 143 144 /* Add to keymap list */ 145 SLIST_INSERT_HEAD(&head, km_new, entries); 146 } 147 148 /* 149 * Figure out the default language to use. 150 */ 151 static const char * 152 get_locale(void) 153 { 154 const char *locale; 155 156 if ((locale = getenv("LC_ALL")) == NULL && 157 (locale = getenv("LC_CTYPE")) == NULL && 158 (locale = getenv("LANG")) == NULL) 159 locale = lang_default; 160 161 /* Check for alias */ 162 if (!strcmp(locale, "C")) 163 locale = DEFAULT_LANG; 164 165 return locale; 166 } 167 168 /* 169 * Extract filename part 170 */ 171 static const char * 172 extract_name(const char *name) 173 { 174 char *p; 175 176 p = strrchr(name, '/'); 177 if (p != NULL && p[1] != '\0') 178 return p + 1; 179 180 return name; 181 } 182 183 /* 184 * Return file extension or NULL 185 */ 186 static char * 187 get_extension(const char *name) 188 { 189 char *p; 190 191 p = strrchr(name, '.'); 192 193 if (p != NULL && p[1] != '\0') 194 return p; 195 196 return NULL; 197 } 198 199 /* 200 * Read font from /etc/rc.conf else return default. 201 * Freeing the memory is the caller's responsibility. 202 */ 203 static char * 204 get_font(void) 205 { 206 char line[256], buf[20]; 207 char *fnt = NULL; 208 209 FILE *fp = fopen(sysconfig, "r"); 210 if (fp) { 211 while (fgets(line, sizeof(line), fp)) { 212 int a, b, matches; 213 214 if (line[0] == '#') 215 continue; 216 217 matches = sscanf(line, 218 " font%dx%d = \"%20[-.0-9a-zA-Z_]", 219 &a, &b, buf); 220 if (matches==3) { 221 if (strcmp(buf, "NO")) { 222 if (fnt) 223 free(fnt); 224 fnt = (char *) malloc(strlen(buf) + 1); 225 strcpy(fnt, buf); 226 } 227 } 228 } 229 } else 230 fprintf(stderr, "Could not open %s for reading\n", sysconfig); 231 232 return fnt; 233 } 234 235 /* 236 * Set a font using 'vidcontrol' 237 */ 238 static void 239 vidcontrol(const char *fnt) 240 { 241 char *tmp, *p, *q; 242 char ch; 243 int i; 244 245 /* syscons test failed */ 246 if (x11) 247 return; 248 249 tmp = strdup(fnt); 250 251 /* Extract font size */ 252 p = strrchr(tmp, '-'); 253 if (p && p[1] != '\0') { 254 p++; 255 /* Remove any '.fnt' extension */ 256 if ((q = strstr(p, ".fnt"))) 257 *q = '\0'; 258 259 /* 260 * Check font size is valid, with no trailing characters 261 * ('&ch' should not be matched) 262 */ 263 if (sscanf(p, "%dx%d%c", &i, &i, &ch) != 2) 264 fprintf(stderr, "Which font size? %s\n", fnt); 265 else { 266 char *cmd; 267 asprintf(&cmd, "vidcontrol -f %s %s", p, fnt); 268 if (verbose) 269 fprintf(stderr, "%s\n", cmd); 270 system(cmd); 271 free(cmd); 272 } 273 } else 274 fprintf(stderr, "Which font size? %s\n", fnt); 275 276 free(tmp); 277 } 278 279 /* 280 * Execute 'kbdcontrol' with the appropriate arguments 281 */ 282 static void 283 do_kbdcontrol(struct keymap *km) 284 { 285 char *kbd_cmd; 286 asprintf(&kbd_cmd, "kbdcontrol -l %s/%s", dir, km->keym); 287 288 if (!x11) 289 system(kbd_cmd); 290 291 fprintf(stderr, "keymap=%s\n", km->keym); 292 free(kbd_cmd); 293 } 294 295 /* 296 * Call 'vidcontrol' with the appropriate arguments 297 */ 298 static void 299 do_vidfont(struct keymap *km) 300 { 301 char *vid_cmd, *tmp, *p, *q; 302 303 asprintf(&vid_cmd, "%s/%s", dir, km->keym); 304 vidcontrol(vid_cmd); 305 free(vid_cmd); 306 307 tmp = strdup(km->keym); 308 p = strrchr(tmp, '-'); 309 if (p && p[1]!='\0') { 310 p++; 311 q = get_extension(p); 312 if (q) { 313 *q = '\0'; 314 printf("font%s=%s\n", p, km->keym); 315 } 316 } 317 free(tmp); 318 } 319 320 /* 321 * Display dialog from 'keymaps[]' 322 */ 323 static void 324 show_dialog(struct keymap **km_sorted, int num_keymaps) 325 { 326 FILE *fp; 327 char *cmd, *dialog; 328 char tmp_name[] = "/tmp/_kbd_lang.XXXX"; 329 const char *ext; 330 int fd, i, size; 331 332 fd = mkstemp(tmp_name); 333 if (fd == -1) { 334 fprintf(stderr, "Could not open temporary file \"%s\"\n", 335 tmp_name); 336 exit(1); 337 } 338 asprintf(&dialog, "/usr/bin/dialog --clear --title \"Keyboard Menu\" " 339 "--menu \"%s\" -1 -1 10", menu); 340 341 ext = extract_name(dir); 342 343 /* start right font, assume that current font is equal 344 * to default font in /etc/rc.conf 345 * 346 * $font is the font which require the language $lang; e.g. 347 * russian *need* a koi8 font 348 * $font_current is the current font from /etc/rc.conf 349 */ 350 if (font && strcmp(font, font_current)) 351 vidcontrol(font); 352 353 /* Build up the command */ 354 size = 0; 355 for (i=0; i<num_keymaps; i++) { 356 /* 357 * Each 'font' is passed as ' "font" ""', so allow the 358 * extra space 359 */ 360 size += strlen(km_sorted[i]->desc) + 6; 361 } 362 363 /* Allow the space for '2> tmpfilename' redirection */ 364 size += strlen(tmp_name) + 3; 365 366 cmd = (char *) malloc(strlen(dialog) + size + 1); 367 strcpy(cmd, dialog); 368 369 for (i=0; i<num_keymaps; i++) { 370 strcat(cmd, " \""); 371 strcat(cmd, km_sorted[i]->desc); 372 strcat(cmd, "\""); 373 strcat(cmd, " \"\""); 374 } 375 376 strcat(cmd, " 2>"); 377 strcat(cmd, tmp_name); 378 379 /* Show the dialog.. */ 380 system(cmd); 381 382 fp = fopen(tmp_name, "r"); 383 if (fp) { 384 char choice[64]; 385 if (fgets(choice, sizeof(choice), fp) != NULL) { 386 /* Find key for desc */ 387 for (i=0; i<num_keymaps; i++) { 388 if (!strcmp(choice, km_sorted[i]->desc)) { 389 if (!strcmp(program, "kbdmap")) 390 do_kbdcontrol(km_sorted[i]); 391 else 392 do_vidfont(km_sorted[i]); 393 break; 394 } 395 } 396 } else { 397 if (font != NULL && strcmp(font, font_current)) 398 /* Cancelled, restore old font */ 399 vidcontrol(font_current); 400 } 401 fclose(fp); 402 } else 403 fprintf(stderr, "Failed to open temporary file"); 404 405 /* Tidy up */ 406 remove(tmp_name); 407 free(cmd); 408 free(dialog); 409 close(fd); 410 } 411 412 /* 413 * Search for 'token' in comma delimited array 'buffer'. 414 * Return true for found, false for not found. 415 */ 416 static int 417 find_token(const char *buffer, const char *token) 418 { 419 char *buffer_tmp, *buffer_copy, *inputstring; 420 char **ap; 421 int found; 422 423 buffer_copy = strdup(buffer); 424 buffer_tmp = buffer_copy; 425 inputstring = buffer_copy; 426 ap = &buffer_tmp; 427 428 found = 0; 429 430 while ((*ap = strsep(&inputstring, ",")) != NULL) { 431 if (strcmp(buffer_tmp, token) == 0) { 432 found = 1; 433 break; 434 } 435 } 436 437 free(buffer_copy); 438 439 return found; 440 } 441 442 /* 443 * Compare function for qsort 444 */ 445 static int 446 compare_keymap(const void *a, const void *b) 447 { 448 449 /* We've been passed pointers to pointers, so: */ 450 const struct keymap *km1 = *((const struct keymap * const *) a); 451 const struct keymap *km2 = *((const struct keymap * const *) b); 452 453 return strcmp(km1->desc, km2->desc); 454 } 455 456 /* 457 * Compare function for qsort 458 */ 459 static int 460 compare_lang(const void *a, const void *b) 461 { 462 const char *l1 = *((const char * const *) a); 463 const char *l2 = *((const char * const *) b); 464 465 return strcmp(l1, l2); 466 } 467 468 /* 469 * Change '8x8' to '8x08' so qsort will put it before eg. '8x14' 470 */ 471 static void 472 kludge_desc(struct keymap **km_sorted, int num_keymaps) 473 { 474 int i; 475 476 for (i=0; i<num_keymaps; i++) { 477 char *p; 478 char *km = km_sorted[i]->desc; 479 if ((p = strstr(km, "8x8")) != NULL) { 480 int len; 481 int j; 482 int offset; 483 484 offset = p - km; 485 486 /* Make enough space for the extra '0' */ 487 len = strlen(km); 488 km = realloc(km, len + 2); 489 490 for (j=len; j!=offset+1; j--) 491 km[j + 1] = km[j]; 492 493 km[offset+2] = '0'; 494 495 km_sorted[i]->desc = km; 496 } 497 } 498 } 499 500 /* 501 * Reverse 'kludge_desc()' - change '8x08' back to '8x8' 502 */ 503 static void 504 unkludge_desc(struct keymap **km_sorted, int num_keymaps) 505 { 506 int i; 507 508 for (i=0; i<num_keymaps; i++) { 509 char *p; 510 char *km = km_sorted[i]->desc; 511 if ((p = strstr(km, "8x08")) != NULL) { 512 p += 2; 513 while (*p++) 514 p[-1] = p[0]; 515 516 km = realloc(km, p - km - 1); 517 km_sorted[i]->desc = km; 518 } 519 } 520 } 521 522 /* 523 * Return 0 if file exists and is readable, else -1 524 */ 525 static int 526 check_file(const char *keym) 527 { 528 int status = 0; 529 530 if (access(keym, R_OK) == -1) { 531 char *fn; 532 asprintf(&fn, "%s/%s", dir, keym); 533 if (access(fn, R_OK) == -1) { 534 if (verbose) 535 fprintf(stderr, "%s not found!\n", fn); 536 status = -1; 537 } 538 free(fn); 539 } else { 540 if (verbose) 541 fprintf(stderr, "No read permission for %s!\n", keym); 542 status = -1; 543 } 544 545 return status; 546 } 547 548 /* 549 * Read options from the relevent configuration file, then 550 * present to user. 551 */ 552 static void 553 menu_read(void) 554 { 555 const char *lg; 556 char *p; 557 int mark, num_keymaps, items, i; 558 char buffer[256], filename[PATH_MAX]; 559 char keym[64], lng[64], desc[64]; 560 char dialect[64], lang_abk[64]; 561 struct keymap *km; 562 struct keymap **km_sorted; 563 struct dirent *dp; 564 StringList *lang_list; 565 FILE *fp; 566 DIR *dirp; 567 568 lang_list = sl_init(); 569 570 sprintf(filename, "%s/INDEX.%s", dir, extract_name(dir)); 571 572 /* en_US.ISO8859-1 -> en_..\.ISO8859-1 */ 573 strlcpy(dialect, lang, sizeof(dialect)); 574 if (strlen(dialect) >= 6 && dialect[2] == '_') { 575 dialect[3] = '.'; 576 dialect[4] = '.'; 577 } 578 579 580 /* en_US.ISO8859-1 -> en */ 581 strlcpy(lang_abk, lang, sizeof(lang_abk)); 582 if (strlen(lang_abk) >= 3 && lang_abk[2] == '_') 583 lang_abk[2] = '\0'; 584 585 fprintf(stderr, "lang_default = %s\n", lang_default); 586 fprintf(stderr, "dialect = %s\n", dialect); 587 fprintf(stderr, "lang_abk = %s\n", lang_abk); 588 589 fp = fopen(filename, "r"); 590 if (fp) { 591 int matches; 592 while (fgets(buffer, sizeof(buffer), fp)) { 593 p = buffer; 594 if (p[0] == '#') 595 continue; 596 597 while (isspace(*p)) 598 p++; 599 600 if (*p == '\0') 601 continue; 602 603 /* Parse input, removing newline */ 604 matches = sscanf(p, "%64[^:]:%64[^:]:%64[^:\n]", 605 keym, lng, desc); 606 if (matches == 3) { 607 if (strcmp(keym, "FONT") 608 && strcmp(keym, "MENU")) { 609 /* Check file exists & is readable */ 610 if (check_file(keym) == -1) 611 continue; 612 } 613 } 614 615 if (show) { 616 /* 617 * Take note of supported languages, which 618 * might be in a comma-delimited list 619 */ 620 char *tmp = strdup(lng); 621 char *delim = tmp; 622 623 for (delim = tmp; ; ) { 624 char ch = *delim++; 625 if (ch == ',' || ch == '\0') { 626 delim[-1] = '\0'; 627 if (!sl_find(lang_list, tmp)) 628 sl_add(lang_list, tmp); 629 if (ch == '\0') 630 break; 631 tmp = delim; 632 } 633 } 634 } 635 /* Set empty language to default language */ 636 if (lng[0] == '\0') 637 lg = lang_default; 638 else 639 lg = lng; 640 641 642 /* 4) Your choice if it exists 643 * 3) Long match eg. en_GB.ISO8859-1 is equal to 644 * en_..\.ISO8859-1 645 * 2) short match 'de' 646 * 1) default langlist 'en' 647 * 0) any language 648 * 649 * Language may be a comma separated list 650 * A higher match overwrites a lower 651 * A later entry overwrites a previous if it exists 652 * twice in the database 653 */ 654 655 /* Check for favoured language */ 656 km = get_keymap(keym); 657 mark = (km) ? km->mark : 0; 658 659 if (find_token(lg, lang)) 660 add_keymap(desc, 4, keym); 661 else if (mark <= 3 && find_token(lg, dialect)) 662 add_keymap(desc, 3, keym); 663 else if (mark <= 2 && find_token(lg, lang_abk)) 664 add_keymap(desc, 2, keym); 665 else if (mark <= 1 && find_token(lg, lang_default)) 666 add_keymap(desc, 1, keym); 667 else if (mark <= 0) 668 add_keymap(desc, 0, keym); 669 } 670 fclose(fp); 671 672 } else 673 printf("Could not open file\n"); 674 675 if (show) { 676 qsort(lang_list->sl_str, lang_list->sl_cur, sizeof(char*), 677 compare_lang); 678 printf("Currently supported languages: "); 679 for (i=0; i< (int) lang_list->sl_cur; i++) 680 printf("%s ", lang_list->sl_str[i]); 681 puts(""); 682 exit(0); 683 } 684 685 km = get_keymap("MENU"); 686 if (km) 687 /* Take note of menu title */ 688 menu = strdup(km->desc); 689 km = get_keymap("FONT"); 690 if (km) 691 /* Take note of language font */ 692 font = strdup(km->desc); 693 694 /* Remove unwanted items from list */ 695 remove_keymap("MENU"); 696 remove_keymap("FONT"); 697 698 /* Look for keymaps not in database */ 699 dirp = opendir(dir); 700 if (dirp) { 701 while ((dp = readdir(dirp)) != NULL) { 702 const char *ext = get_extension(dp->d_name); 703 if (ext) { 704 if ((!strcmp(ext, ".fnt") || 705 !strcmp(ext, ".kbd")) && 706 !get_keymap(dp->d_name)) { 707 char *q; 708 709 /* Remove any .fnt or .kbd extension */ 710 q = strdup(dp->d_name); 711 *(get_extension(q)) = '\0'; 712 add_keymap(q, 0, dp->d_name); 713 free(q); 714 715 if (verbose) 716 fprintf(stderr, 717 "'%s' not in database\n", 718 dp->d_name); 719 } 720 } 721 } 722 closedir(dirp); 723 } else 724 fprintf(stderr, "Could not open directory '%s'\n", dir); 725 726 /* Sort items in keymap */ 727 num_keymaps = get_num_keymaps(); 728 729 km_sorted = (struct keymap **) 730 malloc(num_keymaps*sizeof(struct keymap *)); 731 732 /* Make array of pointers to items in hash */ 733 items = 0; 734 SLIST_FOREACH(km, &head, entries) 735 km_sorted[items++] = km; 736 737 /* Change '8x8' to '8x08' so sort works as we might expect... */ 738 kludge_desc(km_sorted, num_keymaps); 739 740 qsort(km_sorted, num_keymaps, sizeof(struct keymap *), compare_keymap); 741 742 /* ...change back again */ 743 unkludge_desc(km_sorted, num_keymaps); 744 745 if (print) { 746 for (i=0; i<num_keymaps; i++) 747 printf("%s\n", km_sorted[i]->desc); 748 exit(0); 749 } 750 751 show_dialog(km_sorted, num_keymaps); 752 753 free(km_sorted); 754 } 755 756 /* 757 * Display usage information and exit 758 */ 759 static void 760 usage(void) 761 { 762 763 fprintf(stderr, "usage: %s\t[-K] [-V] [-d|-default] [-h|-help] " 764 "[-l|-lang language]\n\t\t[-p|-print] [-r|-restore] [-s|-show] " 765 "[-v|-verbose]\n", program); 766 exit(1); 767 } 768 769 static void 770 parse_args(int argc, char **argv) 771 { 772 int i; 773 774 for (i=1; i<argc; i++) { 775 if (argv[i][0] != '-') 776 usage(); 777 else if (!strcmp(argv[i], "-help") || !strcmp(argv[i], "-h")) 778 usage(); 779 else if (!strcmp(argv[i], "-verbose") || !strcmp(argv[i], "-v")) 780 verbose = 1; 781 else if (!strcmp(argv[i], "-lang") || !strcmp(argv[i], "-l")) 782 if (i + 1 == argc) 783 usage(); 784 else 785 lang = argv[++i]; 786 else if (!strcmp(argv[i], "-default") || !strcmp(argv[i], "-d")) 787 lang = lang_default; 788 else if (!strcmp(argv[i], "-show") || !strcmp(argv[i], "-s")) 789 show = 1; 790 else if (!strcmp(argv[i], "-print") || !strcmp(argv[i], "-p")) 791 print = 1; 792 else if (!strcmp(argv[i], "-restore") || 793 !strcmp(argv[i], "-r")) { 794 vidcontrol(font_current); 795 exit(0); 796 } else if (!strcmp(argv[i], "-K")) 797 dir = keymapdir; 798 else if (!strcmp(argv[i], "-V")) 799 dir = fontdir; 800 else 801 usage(); 802 } 803 } 804 805 /* 806 * A front-end for the 'vidfont' and 'kbdmap' programs. 807 */ 808 int 809 main(int argc, char **argv) 810 { 811 812 x11 = system("kbdcontrol -d >/dev/null"); 813 814 if (x11) { 815 fprintf(stderr, "You are not on a virtual console - " 816 "expect certain strange side-effects\n"); 817 sleep(2); 818 } 819 820 SLIST_INIT(&head); 821 822 lang = get_locale(); 823 824 program = extract_name(argv[0]); 825 826 font_current = get_font(); 827 if (font_current == NULL) 828 font_current = font_default; 829 830 if (strcmp(program, "kbdmap")) 831 dir = fontdir; 832 else 833 dir = keymapdir; 834 835 /* Parse command line arguments */ 836 parse_args(argc, argv); 837 838 /* Read and display options */ 839 menu_read(); 840 841 return 0; 842 } 843