usr.sbin/kbdmap/kbdmap.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause
   3  *
   4  * Copyright (c) 2002 Jonathan Belson <jon@witchspace.com>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/types.h>
  30 #include <sys/queue.h>
  31 #include <sys/sysctl.h>
  32
  33 #include <assert.h>
  34 #include <bsddialog.h>
  35 #include <ctype.h>
  36 #include <dirent.h>
  37 #include <limits.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <stringlist.h>
  42 #include <unistd.h>
  43
  44 #include "kbdmap.h"
  45
  46
  47 static const char *lang_default = DEFAULT_LANG;
  48 static const char *font;
  49 static const char *lang;
  50 static const char *program;
  51 static const char *keymapdir = DEFAULT_VT_KEYMAP_DIR;
  52 static const char *fontdir = DEFAULT_VT_FONT_DIR;
  53 static const char *font_default = DEFAULT_VT_FONT;
  54 static const char *sysconfig = DEFAULT_SYSCONFIG;
  55 static const char *font_current;
  56 static const char *dir;
  57 static const char *menu = "";
  58 static const char *title = "Keyboard Menu";
  59
  60 static int x11;
  61 static int using_vt;
  62 static int show;
  63 static int verbose;
  64 static int print;
  65
  66
  67 struct keymap {
  68         char    *desc;
  69         char    *keym;
  70         int     mark;
  71         SLIST_ENTRY(keymap) entries;
  72 };
  73 static SLIST_HEAD(slisthead, keymap) head = SLIST_HEAD_INITIALIZER(head);
  74
  75
  76 /*
  77  * Get keymap entry for 'key', or NULL of not found
  78  */
  79 static struct keymap *
  80 get_keymap(const char *key)
  81 {
  82         struct keymap *km;
  83
  84         SLIST_FOREACH(km, &head, entries)
  85                 if (!strcmp(km->keym, key))
  86                         return km;
  87
  88         return NULL;
  89 }
  90
  91 /*
  92  * Count the number of keymaps we found
  93  */
  94 static int
  95 get_num_keymaps(void)
  96 {
  97         struct keymap *km;
  98         int count = 0;
  99
 100         SLIST_FOREACH(km, &head, entries)
 101                 count++;
 102
 103         return count;
 104 }
 105
 106 /*
 107  * Remove any keymap with given keym
 108  */
 109 static void
 110 remove_keymap(const char *keym)
 111 {
 112         struct keymap *km;
 113
 114         SLIST_FOREACH(km, &head, entries) {
 115                 if (!strcmp(keym, km->keym)) {
 116                         SLIST_REMOVE(&head, km, keymap, entries);
 117                         free(km);
 118                         break;
 119                 }
 120         }
 121 }
 122
 123 /*
 124  * Add to hash with 'key'
 125  */
 126 static void
 127 add_keymap(const char *desc, int mark, const char *keym)
 128 {
 129         struct keymap *km, *km_new;
 130
 131         /* Is there already an entry with this key? */
 132         SLIST_FOREACH(km, &head, entries) {
 133                 if (!strcmp(km->keym, keym)) {
 134                         /* Reuse this entry */
 135                         free(km->desc);
 136                         km->desc = strdup(desc);
 137                         km->mark = mark;
 138                         return;
 139                 }
 140         }
 141
 142         km_new = (struct keymap *) malloc (sizeof(struct keymap));
 143         km_new->desc = strdup(desc);
 144         km_new->keym = strdup(keym);
 145         km_new->mark = mark;
 146
 147         /* Add to keymap list */
 148         SLIST_INSERT_HEAD(&head, km_new, entries);
 149 }
 150
 151 /*
 152  * Return 0 if syscons is in use (to select legacy defaults).
 153  */
 154 static int
 155 check_vt(void)
 156 {
 157         size_t len;
 158         char term[3];
 159
 160         len = 3;
 161         if (sysctlbyname("kern.vty", &term, &len, NULL, 0) != 0 ||
 162             strcmp(term, "vt") != 0)
 163                 return 0;
 164         return 1;
 165 }
 166
 167 /*
 168  * Figure out the default language to use.
 169  */
 170 static const char *
 171 get_locale(void)
 172 {
 173         const char *locale;
 174
 175         if ((locale = getenv("LC_ALL")) == NULL &&
 176             (locale = getenv("LC_CTYPE")) == NULL &&
 177             (locale = getenv("LANG")) == NULL)
 178                 locale = lang_default;
 179
 180         /* Check for alias */
 181         if (!strcmp(locale, "C"))
 182                 locale = DEFAULT_LANG;
 183
 184         return locale;
 185 }
 186
 187 /*
 188  * Extract filename part
 189  */
 190 static const char *
 191 extract_name(const char *name)
 192 {
 193         char *p;
 194
 195         p = strrchr(name, '/');
 196         if (p != NULL && p[1] != '\0')
 197                 return p + 1;
 198
 199         return name;
 200 }
 201
 202 /*
 203  * Return file extension or NULL
 204  */
 205 static char *
 206 get_extension(const char *name)
 207 {
 208         char *p;
 209
 210         p = strrchr(name, '.');
 211
 212         if (p != NULL && p[1] != '\0')
 213                 return p;
 214
 215         return NULL;
 216 }
 217
 218 /*
 219  * Read font from /etc/rc.conf else return default.
 220  * Freeing the memory is the caller's responsibility.
 221  */
 222 static char *
 223 get_font(void)
 224 {
 225         char line[256], buf[21];
 226         char *fnt = NULL;
 227
 228         FILE *fp = fopen(sysconfig, "r");
 229         if (fp) {
 230                 while (fgets(line, sizeof(line), fp)) {
 231                         int a, b, matches;
 232
 233                         if (line[0] == '#')
 234                                 continue;
 235
 236                         matches = sscanf(line,
 237                             " font%dx%d = \"%20[-.0-9a-zA-Z_]",
 238                             &a, &b, buf);
 239                         if (matches==3) {
 240                                 if (strcmp(buf, "NO")) {
 241                                         if (fnt)
 242                                                 free(fnt);
 243                                         fnt = strdup(buf);
 244                                 }
 245                         }
 246                 }
 247                 fclose(fp);
 248         } else
 249                 fprintf(stderr, "Could not open %s for reading\n", sysconfig);
 250
 251         return fnt;
 252 }
 253
 254 /*
 255  * Set a font using 'vidcontrol'
 256  */
 257 static void
 258 vidcontrol(const char *fnt)
 259 {
 260         char *tmp, *p, *q, *cmd;
 261         char ch;
 262         int i;
 263
 264         /* syscons test failed */
 265         if (x11)
 266                 return;
 267
 268         if (using_vt) {
 269                 asprintf(&cmd, "vidcontrol -f %s", fnt);
 270                 system(cmd);
 271                 free(cmd);
 272                 return;
 273         }
 274
 275         tmp = strdup(fnt);
 276
 277         /* Extract font size */
 278         p = strrchr(tmp, '-');
 279         if (p && p[1] != '\0') {
 280                 p++;
 281                 /* Remove any '.fnt' extension */
 282                 if ((q = strstr(p, ".fnt")))
 283                         *q = '\0';
 284
 285                 /*
 286                  * Check font size is valid, with no trailing characters
 287                  *  ('&ch' should not be matched)
 288                  */
 289                 if (sscanf(p, "%dx%d%c", &i, &i, &ch) != 2)
 290                         fprintf(stderr, "Which font size? %s\n", fnt);
 291                 else {
 292                         asprintf(&cmd, "vidcontrol -f %s %s", p, fnt);
 293                         if (verbose)
 294                                 fprintf(stderr, "%s\n", cmd);
 295                         system(cmd);
 296                         free(cmd);
 297                 }
 298         } else
 299                 fprintf(stderr, "Which font size? %s\n", fnt);
 300
 301         free(tmp);
 302 }
 303
 304 /*
 305  * Execute 'kbdcontrol' with the appropriate arguments
 306  */
 307 static void
 308 do_kbdcontrol(struct keymap *km)
 309 {
 310         char *kbd_cmd;
 311         asprintf(&kbd_cmd, "kbdcontrol -l %s/%s", dir, km->keym);
 312
 313         if (!x11)
 314                 system(kbd_cmd);
 315
 316         fprintf(stderr, "keymap=\"%s\"\n", km->keym);
 317         free(kbd_cmd);
 318 }
 319
 320 /*
 321  * Call 'vidcontrol' with the appropriate arguments
 322  */
 323 static void
 324 do_vidfont(struct keymap *km)
 325 {
 326         char *vid_cmd, *tmp, *p, *q;
 327
 328         asprintf(&vid_cmd, "%s/%s", dir, km->keym);
 329         vidcontrol(vid_cmd);
 330         free(vid_cmd);
 331
 332         tmp = strdup(km->keym);
 333         p = strrchr(tmp, '-');
 334         if (p && p[1]!='\0') {
 335                 p++;
 336                 q = get_extension(p);
 337                 if (q) {
 338                         *q = '\0';
 339                         printf("font%s=%s\n", p, km->keym);
 340                 }
 341         }
 342         free(tmp);
 343 }
 344
 345 /*
 346  * Display dialog from 'keymaps[]'
 347  */
 348 static void
 349 show_dialog(struct keymap **km_sorted, int num_keymaps)
 350 {
 351         struct bsddialog_conf conf;
 352         struct bsddialog_menuitem *listitems;
 353         int i, result;
 354
 355         if (bsddialog_init() == BSDDIALOG_ERROR) {
 356                 fprintf(stderr, "Error bsddialog: %s\n", bsddialog_geterror());
 357                 exit(1);
 358         }
 359         conf.title = __DECONST(char *, title);
 360
 361         listitems = calloc(num_keymaps + 1, sizeof(struct bsddialog_menuitem));
 362         if (listitems == NULL) {
 363                 fprintf(stderr, "Failed to allocate memory in show_dialog");
 364                 bsddialog_end();
 365                 exit(1);
 366         }
 367
 368         /* start right font, assume that current font is equal
 369          * to default font in /etc/rc.conf
 370          *
 371          * $font is the font which require the language $lang; e.g.
 372          * russian *need* a koi8 font
 373          * $font_current is the current font from /etc/rc.conf
 374          */
 375         if (font && strcmp(font, font_current))
 376                 vidcontrol(font);
 377
 378         /* Build up the menu */
 379         for (i=0; i<num_keymaps; i++) {
 380                 listitems[i].prefix = "";
 381                 listitems[i].depth = 0;
 382                 listitems[i].bottomdesc = "";
 383                 listitems[i].on = false;
 384                 listitems[i].name = km_sorted[i]->desc;
 385                 listitems[i].desc = "";
 386         }
 387         bsddialog_initconf(&conf);
 388         conf.title = title;
 389         conf.clear = true;
 390         conf.key.enable_esc = true;
 391         result = bsddialog_menu(&conf, menu, 0, 0, 0, num_keymaps, listitems,
 392             NULL);
 393         if (result == BSDDIALOG_ERROR)
 394                 fprintf(stderr, "Error bsddialog: %s\n", bsddialog_geterror());
 395         bsddialog_end();
 396
 397         switch (result) {
 398         case BSDDIALOG_OK:
 399                 for (i = 0; i < num_keymaps; i++) {
 400                         if (listitems[i].on) {
 401                                 if (!strcmp(program, "kbdmap"))
 402                                         do_kbdcontrol(km_sorted[i]);
 403                                 else
 404                                         do_vidfont(km_sorted[i]);
 405                                 break;
 406                         }
 407                 }
 408                 break;
 409         default:
 410                 if (font != NULL && strcmp(font, font_current))
 411                         /* Cancelled, restore old font */
 412                         vidcontrol(font_current);
 413                 break;
 414         }
 415 }
 416
 417 /*
 418  * Search for 'token' in comma delimited array 'buffer'.
 419  * Return true for found, false for not found.
 420  */
 421 static int
 422 find_token(const char *buffer, const char *token)
 423 {
 424         char *buffer_tmp, *buffer_copy, *inputstring;
 425         char **ap;
 426         int found;
 427
 428         buffer_copy = strdup(buffer);
 429         buffer_tmp = buffer_copy;
 430         inputstring = buffer_copy;
 431         ap = &buffer_tmp;
 432
 433         found = 0;
 434
 435         while ((*ap = strsep(&inputstring, ",")) != NULL) {
 436                 if (strcmp(buffer_tmp, token) == 0) {
 437                         found = 1;
 438                         break;
 439                 }
 440         }
 441
 442         free(buffer_copy);
 443
 444         return found;
 445 }
 446
 447 /*
 448  * Compare function for qsort
 449  */
 450 static int
 451 compare_keymap(const void *a, const void *b)
 452 {
 453
 454         /* We've been passed pointers to pointers, so: */
 455         const struct keymap *km1 = *((const struct keymap * const *) a);
 456         const struct keymap *km2 = *((const struct keymap * const *) b);
 457
 458         return strcmp(km1->desc, km2->desc);
 459 }
 460
 461 /*
 462  * Compare function for qsort
 463  */
 464 static int
 465 compare_lang(const void *a, const void *b)
 466 {
 467         const char *l1 = *((const char * const *) a);
 468         const char *l2 = *((const char * const *) b);
 469
 470         return strcmp(l1, l2);
 471 }
 472
 473 /*
 474  * Change '8x8' to '8x08' so qsort will put it before eg. '8x14'
 475  */
 476 static void
 477 kludge_desc(struct keymap **km_sorted, int num_keymaps)
 478 {
 479         int i;
 480
 481         for (i=0; i<num_keymaps; i++) {
 482                 char *p;
 483                 char *km = km_sorted[i]->desc;
 484                 if ((p = strstr(km, "8x8")) != NULL) {
 485                         int len;
 486                         int j;
 487                         int offset;
 488
 489                         offset = p - km;
 490
 491                         /* Make enough space for the extra '0' */
 492                         len = strlen(km);
 493                         km = realloc(km, len + 2);
 494
 495                         for (j=len; j!=offset+1; j--)
 496                                 km[j + 1] = km[j];
 497
 498                         km[offset+2] = '0';
 499
 500                         km_sorted[i]->desc = km;
 501                 }
 502         }
 503 }
 504
 505 /*
 506  * Reverse 'kludge_desc()' - change '8x08' back to '8x8'
 507  */
 508 static void
 509 unkludge_desc(struct keymap **km_sorted, int num_keymaps)
 510 {
 511         int i;
 512
 513         for (i=0; i<num_keymaps; i++) {
 514                 char *p;
 515                 char *km = km_sorted[i]->desc;
 516                 if ((p = strstr(km, "8x08")) != NULL) {
 517                         p += 2;
 518                         while (*p++)
 519                                 p[-1] = p[0];
 520
 521                         km = realloc(km, p - km - 1);
 522                         km_sorted[i]->desc = km;
 523                 }
 524         }
 525 }
 526
 527 /*
 528  * Return 0 if file exists and is readable, else -1
 529  */
 530 static int
 531 check_file(const char *keym)
 532 {
 533         int status = 0;
 534
 535         if (access(keym, R_OK) == -1) {
 536                 char *fn;
 537                 asprintf(&fn, "%s/%s", dir, keym);
 538                 if (access(fn, R_OK) == -1) {
 539                         if (verbose)
 540                                 fprintf(stderr, "%s not found!\n", fn);
 541                         status = -1;
 542                 }
 543                 free(fn);
 544         } else {
 545                 if (verbose)
 546                         fprintf(stderr, "No read permission for %s!\n", keym);
 547                 status = -1;
 548         }
 549
 550         return status;
 551 }
 552
 553 /*
 554  * Read options from the relevant configuration file, then
 555  *  present to user.
 556  */
 557 static void
 558 menu_read(void)
 559 {
 560         const char *lg;
 561         char *p;
 562         int mark, num_keymaps, items, i;
 563         char buffer[256], filename[PATH_MAX];
 564         char keym[65], lng[65], desc[257];
 565         char dialect[64], lang_abk[64];
 566         struct keymap *km;
 567         struct keymap **km_sorted;
 568         struct dirent *dp;
 569         StringList *lang_list;
 570         FILE *fp;
 571         DIR *dirp;
 572
 573         lang_list = sl_init();
 574
 575         sprintf(filename, "%s/INDEX.%s", dir, extract_name(dir));
 576
 577         /* en_US.ISO8859-1 -> en_..\.ISO8859-1 */
 578         strlcpy(dialect, lang, sizeof(dialect));
 579         if (strlen(dialect) >= 6 && dialect[2] == '_') {
 580                 dialect[3] = '.';
 581                 dialect[4] = '.';
 582         }
 583
 584
 585         /* en_US.ISO8859-1 -> en */
 586         strlcpy(lang_abk, lang, sizeof(lang_abk));
 587         if (strlen(lang_abk) >= 3 && lang_abk[2] == '_')
 588                 lang_abk[2] = '\0';
 589
 590         fprintf(stderr, "lang_default = %s\n", lang_default);
 591         fprintf(stderr, "dialect = %s\n", dialect);
 592         fprintf(stderr, "lang_abk = %s\n", lang_abk);
 593
 594         fp = fopen(filename, "r");
 595         if (fp) {
 596                 int matches;
 597                 while (fgets(buffer, sizeof(buffer), fp)) {
 598                         p = buffer;
 599                         if (p[0] == '#')
 600                                 continue;
 601
 602                         while (isspace(*p))
 603                                 p++;
 604
 605                         if (*p == '\0')
 606                                 continue;
 607
 608                         /* Parse input, removing newline */
 609                         matches = sscanf(p, "%64[^:]:%64[^:]:%256[^:\n]",
 610                             keym, lng, desc);
 611                         if (matches == 3) {
 612                                 if (strcmp(keym, "FONT") != 0 &&
 613                                     strcmp(keym, "MENU") != 0 &&
 614                                     strcmp(keym, "TITLE") != 0) {
 615                                         /* Check file exists & is readable */
 616                                         if (check_file(keym) == -1)
 617                                                 continue;
 618                                 }
 619                         }
 620
 621                         if (show) {
 622                                 /*
 623                                  * Take note of supported languages, which
 624                                  * might be in a comma-delimited list
 625                                  */
 626                                 char *tmp = strdup(lng);
 627                                 char *delim = tmp;
 628
 629                                 for (delim = tmp; ; ) {
 630                                         char ch = *delim++;
 631                                         if (ch == ',' || ch == '\0') {
 632                                                 delim[-1] = '\0';
 633                                                 if (!sl_find(lang_list, tmp))
 634                                                         sl_add(lang_list, tmp);
 635                                                 if (ch == '\0')
 636                                                         break;
 637                                                 tmp = delim;
 638                                         }
 639                                 }
 640                         }
 641                         /* Set empty language to default language */
 642                         if (lng[0] == '\0')
 643                                 lg = lang_default;
 644                         else
 645                                 lg = lng;
 646
 647
 648                         /* 4) Your choice if it exists
 649                          * 3) Long match eg. en_GB.ISO8859-1 is equal to
 650                          *      en_..\.ISO8859-1
 651                          * 2) short match 'de'
 652                          * 1) default langlist 'en'
 653                          * 0) any language
 654                          *
 655                          * Language may be a comma separated list
 656                          * A higher match overwrites a lower
 657                          * A later entry overwrites a previous if it exists
 658                          *     twice in the database
 659                          */
 660
 661                         /* Check for favoured language */
 662                         km = get_keymap(keym);
 663                         mark = (km) ? km->mark : 0;
 664
 665                         if (find_token(lg, lang))
 666                                 add_keymap(desc, 4, keym);
 667                         else if (mark <= 3 && find_token(lg, dialect))
 668                                 add_keymap(desc, 3, keym);
 669                         else if (mark <= 2 && find_token(lg, lang_abk))
 670                                 add_keymap(desc, 2, keym);
 671                         else if (mark <= 1 && find_token(lg, lang_default))
 672                                 add_keymap(desc, 1, keym);
 673                         else if (mark <= 0)
 674                                 add_keymap(desc, 0, keym);
 675                 }
 676                 fclose(fp);
 677
 678         } else
 679                 fprintf(stderr, "Could not open %s for reading\n", filename);
 680
 681         if (show) {
 682                 qsort(lang_list->sl_str, lang_list->sl_cur, sizeof(char*),
 683                     compare_lang);
 684                 printf("Currently supported languages: ");
 685                 for (i=0; i< (int) lang_list->sl_cur; i++)
 686                         printf("%s ", lang_list->sl_str[i]);
 687                 puts("");
 688                 exit(0);
 689         }
 690
 691         km = get_keymap("TITLE");
 692         if (km)
 693                 /* Take note of dialog title */
 694                 title = strdup(km->desc);
 695         km = get_keymap("MENU");
 696         if (km)
 697                 /* Take note of menu title */
 698                 menu = strdup(km->desc);
 699         km = get_keymap("FONT");
 700         if (km)
 701                 /* Take note of language font */
 702                 font = strdup(km->desc);
 703
 704         /* Remove unwanted items from list */
 705         remove_keymap("FONT");
 706         remove_keymap("MENU");
 707         remove_keymap("TITLE");
 708
 709         /* Look for keymaps not in database */
 710         dirp = opendir(dir);
 711         if (dirp) {
 712                 while ((dp = readdir(dirp)) != NULL) {
 713                         const char *ext = get_extension(dp->d_name);
 714                         if (ext) {
 715                                 if ((!strcmp(ext, ".fnt") ||
 716                                     !strcmp(ext, ".kbd")) &&
 717                                     !get_keymap(dp->d_name)) {
 718                                         char *q;
 719
 720                                         /* Remove any .fnt or .kbd extension */
 721                                         q = strdup(dp->d_name);
 722                                         *(get_extension(q)) = '\0';
 723                                         add_keymap(q, 0, dp->d_name);
 724                                         free(q);
 725
 726                                         if (verbose)
 727                                                 fprintf(stderr,
 728                                                     "'%s' not in database\n",
 729                                                     dp->d_name);
 730                                 }
 731                         }
 732                 }
 733                 closedir(dirp);
 734         } else
 735                 fprintf(stderr, "Could not open directory '%s'\n", dir);
 736
 737         /* Sort items in keymap */
 738         num_keymaps = get_num_keymaps();
 739
 740         km_sorted = (struct keymap **)
 741             malloc(num_keymaps*sizeof(struct keymap *));
 742
 743         /* Make array of pointers to items in hash */
 744         items = 0;
 745         SLIST_FOREACH(km, &head, entries)
 746                 km_sorted[items++] = km;
 747
 748         /* Change '8x8' to '8x08' so sort works as we might expect... */
 749         kludge_desc(km_sorted, num_keymaps);
 750
 751         qsort(km_sorted, num_keymaps, sizeof(struct keymap *), compare_keymap);
 752
 753         /* ...change back again */
 754         unkludge_desc(km_sorted, num_keymaps);
 755
 756         if (print) {
 757                 for (i=0; i<num_keymaps; i++)
 758                         printf("%s\n", km_sorted[i]->desc);
 759                 exit(0);
 760         }
 761
 762         show_dialog(km_sorted, num_keymaps);
 763
 764         free(km_sorted);
 765 }
 766
 767 /*
 768  * Display usage information and exit
 769  */
 770 static void
 771 usage(void)
 772 {
 773
 774         fprintf(stderr, "usage: %s\t[-K] [-V] [-d|-default] [-h|-help] "
 775             "[-l|-lang language]\n\t\t[-p|-print] [-r|-restore] [-s|-show] "
 776             "[-v|-verbose]\n", program);
 777         exit(1);
 778 }
 779
 780 static void
 781 parse_args(int argc, char **argv)
 782 {
 783         int i;
 784
 785         for (i=1; i<argc; i++) {
 786                 if (argv[i][0] != '-')
 787                         usage();
 788                 else if (!strcmp(argv[i], "-help") || !strcmp(argv[i], "-h"))
 789                         usage();
 790                 else if (!strcmp(argv[i], "-verbose") || !strcmp(argv[i], "-v"))
 791                         verbose = 1;
 792                 else if (!strcmp(argv[i], "-lang") || !strcmp(argv[i], "-l"))
 793                         if (i + 1 == argc)
 794                                 usage();
 795                         else
 796                                 lang = argv[++i];
 797                 else if (!strcmp(argv[i], "-default") || !strcmp(argv[i], "-d"))
 798                         lang = lang_default;
 799                 else if (!strcmp(argv[i], "-show") || !strcmp(argv[i], "-s"))
 800                         show = 1;
 801                 else if (!strcmp(argv[i], "-print") || !strcmp(argv[i], "-p"))
 802                         print = 1;
 803                 else if (!strcmp(argv[i], "-restore") ||
 804                     !strcmp(argv[i], "-r")) {
 805                         vidcontrol(font_current);
 806                         exit(0);
 807                 } else if (!strcmp(argv[i], "-K"))
 808                         dir = keymapdir;
 809                 else if (!strcmp(argv[i], "-V"))
 810                         dir = fontdir;
 811                 else
 812                         usage();
 813         }
 814 }
 815
 816 /*
 817  * A front-end for the 'vidfont' and 'kbdmap' programs.
 818  */
 819 int
 820 main(int argc, char **argv)
 821 {
 822
 823         x11 = system("kbdcontrol -d >/dev/null");
 824
 825         if (x11) {
 826                 fprintf(stderr, "You are not on a virtual console - "
 827                                 "expect certain strange side-effects\n");
 828                 sleep(2);
 829         }
 830
 831         using_vt = check_vt();
 832         if (using_vt == 0) {
 833                 keymapdir = DEFAULT_SC_KEYMAP_DIR;
 834                 fontdir = DEFAULT_SC_FONT_DIR;
 835                 font_default = DEFAULT_SC_FONT;
 836         }
 837
 838         SLIST_INIT(&head);
 839
 840         lang = get_locale();
 841
 842         program = extract_name(argv[0]);
 843
 844         font_current = get_font();
 845         if (font_current == NULL)
 846                 font_current = font_default;
 847
 848         if (strcmp(program, "kbdmap"))
 849                 dir = fontdir;
 850         else
 851                 dir = keymapdir;
 852
 853         /* Parse command line arguments */
 854         parse_args(argc, argv);
 855
 856         /* Read and display options */
 857         menu_read();
 858
 859         return 0;
 860 }