xref: /freebsd/usr.sbin/kbdmap/kbdmap.c (revision 397e83df75e0fcd0d3fcb95ae4d794cb7600fc89)
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 }
861