xref: /freebsd/usr.sbin/kbdmap/kbdmap.c (revision b0d29bc47dba79f6f38e67eabadfb4b32ffd9390)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/types.h>
33 #include <sys/queue.h>
34 #include <sys/sysctl.h>
35 
36 #include <assert.h>
37 #include <ctype.h>
38 #include <dirent.h>
39 #include <limits.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <stringlist.h>
44 #include <unistd.h>
45 
46 #include "kbdmap.h"
47 
48 
49 static const char *lang_default = DEFAULT_LANG;
50 static const char *font;
51 static const char *lang;
52 static const char *program;
53 static const char *keymapdir = DEFAULT_VT_KEYMAP_DIR;
54 static const char *fontdir = DEFAULT_VT_FONT_DIR;
55 static const char *font_default = DEFAULT_VT_FONT;
56 static const char *sysconfig = DEFAULT_SYSCONFIG;
57 static const char *font_current;
58 static const char *dir;
59 static const char *menu = "";
60 static const char *title = "Keyboard Menu";
61 
62 static int x11;
63 static int using_vt;
64 static int show;
65 static int verbose;
66 static int print;
67 
68 
69 struct keymap {
70 	char	*desc;
71 	char	*keym;
72 	int	mark;
73 	SLIST_ENTRY(keymap) entries;
74 };
75 static SLIST_HEAD(slisthead, keymap) head = SLIST_HEAD_INITIALIZER(head);
76 
77 
78 /*
79  * Get keymap entry for 'key', or NULL of not found
80  */
81 static struct keymap *
82 get_keymap(const char *key)
83 {
84 	struct keymap *km;
85 
86 	SLIST_FOREACH(km, &head, entries)
87 		if (!strcmp(km->keym, key))
88 			return km;
89 
90 	return NULL;
91 }
92 
93 /*
94  * Count the number of keymaps we found
95  */
96 static int
97 get_num_keymaps(void)
98 {
99 	struct keymap *km;
100 	int count = 0;
101 
102 	SLIST_FOREACH(km, &head, entries)
103 		count++;
104 
105 	return count;
106 }
107 
108 /*
109  * Remove any keymap with given keym
110  */
111 static void
112 remove_keymap(const char *keym)
113 {
114 	struct keymap *km;
115 
116 	SLIST_FOREACH(km, &head, entries) {
117 		if (!strcmp(keym, km->keym)) {
118 			SLIST_REMOVE(&head, km, keymap, entries);
119 			free(km);
120 			break;
121 		}
122 	}
123 }
124 
125 /*
126  * Add to hash with 'key'
127  */
128 static void
129 add_keymap(const char *desc, int mark, const char *keym)
130 {
131 	struct keymap *km, *km_new;
132 
133 	/* Is there already an entry with this key? */
134 	SLIST_FOREACH(km, &head, entries) {
135 		if (!strcmp(km->keym, keym)) {
136 			/* Reuse this entry */
137 			free(km->desc);
138 			km->desc = strdup(desc);
139 			km->mark = mark;
140 			return;
141 		}
142 	}
143 
144 	km_new = (struct keymap *) malloc (sizeof(struct keymap));
145 	km_new->desc = strdup(desc);
146 	km_new->keym = strdup(keym);
147 	km_new->mark = mark;
148 
149 	/* Add to keymap list */
150 	SLIST_INSERT_HEAD(&head, km_new, entries);
151 }
152 
153 /*
154  * Return 0 if syscons is in use (to select legacy defaults).
155  */
156 static int
157 check_vt(void)
158 {
159 	size_t len;
160 	char term[3];
161 
162 	len = 3;
163 	if (sysctlbyname("kern.vty", &term, &len, NULL, 0) != 0 ||
164 	    strcmp(term, "vt") != 0)
165 		return 0;
166 	return 1;
167 }
168 
169 /*
170  * Figure out the default language to use.
171  */
172 static const char *
173 get_locale(void)
174 {
175 	const char *locale;
176 
177 	if ((locale = getenv("LC_ALL")) == NULL &&
178 	    (locale = getenv("LC_CTYPE")) == NULL &&
179 	    (locale = getenv("LANG")) == NULL)
180 		locale = lang_default;
181 
182 	/* Check for alias */
183 	if (!strcmp(locale, "C"))
184 		locale = DEFAULT_LANG;
185 
186 	return locale;
187 }
188 
189 /*
190  * Extract filename part
191  */
192 static const char *
193 extract_name(const char *name)
194 {
195 	char *p;
196 
197 	p = strrchr(name, '/');
198 	if (p != NULL && p[1] != '\0')
199 		return p + 1;
200 
201 	return name;
202 }
203 
204 /*
205  * Return file extension or NULL
206  */
207 static char *
208 get_extension(const char *name)
209 {
210 	char *p;
211 
212 	p = strrchr(name, '.');
213 
214 	if (p != NULL && p[1] != '\0')
215 		return p;
216 
217 	return NULL;
218 }
219 
220 /*
221  * Read font from /etc/rc.conf else return default.
222  * Freeing the memory is the caller's responsibility.
223  */
224 static char *
225 get_font(void)
226 {
227 	char line[256], buf[20];
228 	char *fnt = NULL;
229 
230 	FILE *fp = fopen(sysconfig, "r");
231 	if (fp) {
232 		while (fgets(line, sizeof(line), fp)) {
233 			int a, b, matches;
234 
235 			if (line[0] == '#')
236 				continue;
237 
238 			matches = sscanf(line,
239 			    " font%dx%d = \"%20[-.0-9a-zA-Z_]",
240 			    &a, &b, buf);
241 			if (matches==3) {
242 				if (strcmp(buf, "NO")) {
243 					if (fnt)
244 						free(fnt);
245 					fnt = strdup(buf);
246 				}
247 			}
248 		}
249 		fclose(fp);
250 	} else
251 		fprintf(stderr, "Could not open %s for reading\n", sysconfig);
252 
253 	return fnt;
254 }
255 
256 /*
257  * Set a font using 'vidcontrol'
258  */
259 static void
260 vidcontrol(const char *fnt)
261 {
262 	char *tmp, *p, *q, *cmd;
263 	char ch;
264 	int i;
265 
266 	/* syscons test failed */
267 	if (x11)
268 		return;
269 
270 	if (using_vt) {
271 		asprintf(&cmd, "vidcontrol -f %s", fnt);
272 		system(cmd);
273 		free(cmd);
274 		return;
275 	}
276 
277 	tmp = strdup(fnt);
278 
279 	/* Extract font size */
280 	p = strrchr(tmp, '-');
281 	if (p && p[1] != '\0') {
282 		p++;
283 		/* Remove any '.fnt' extension */
284 		if ((q = strstr(p, ".fnt")))
285 			*q = '\0';
286 
287 		/*
288 		 * Check font size is valid, with no trailing characters
289 		 *  ('&ch' should not be matched)
290 		 */
291 		if (sscanf(p, "%dx%d%c", &i, &i, &ch) != 2)
292 			fprintf(stderr, "Which font size? %s\n", fnt);
293 		else {
294 			asprintf(&cmd, "vidcontrol -f %s %s", p, fnt);
295 			if (verbose)
296 				fprintf(stderr, "%s\n", cmd);
297 			system(cmd);
298 			free(cmd);
299 		}
300 	} else
301 		fprintf(stderr, "Which font size? %s\n", fnt);
302 
303 	free(tmp);
304 }
305 
306 /*
307  * Execute 'kbdcontrol' with the appropriate arguments
308  */
309 static void
310 do_kbdcontrol(struct keymap *km)
311 {
312 	char *kbd_cmd;
313 	asprintf(&kbd_cmd, "kbdcontrol -l %s/%s", dir, km->keym);
314 
315 	if (!x11)
316 		system(kbd_cmd);
317 
318 	fprintf(stderr, "keymap=\"%s\"\n", km->keym);
319 	free(kbd_cmd);
320 }
321 
322 /*
323  * Call 'vidcontrol' with the appropriate arguments
324  */
325 static void
326 do_vidfont(struct keymap *km)
327 {
328 	char *vid_cmd, *tmp, *p, *q;
329 
330 	asprintf(&vid_cmd, "%s/%s", dir, km->keym);
331 	vidcontrol(vid_cmd);
332 	free(vid_cmd);
333 
334 	tmp = strdup(km->keym);
335 	p = strrchr(tmp, '-');
336 	if (p && p[1]!='\0') {
337 		p++;
338 		q = get_extension(p);
339 		if (q) {
340 			*q = '\0';
341 			printf("font%s=%s\n", p, km->keym);
342 		}
343 	}
344 	free(tmp);
345 }
346 
347 /*
348  * Display dialog from 'keymaps[]'
349  */
350 static void
351 show_dialog(struct keymap **km_sorted, int num_keymaps)
352 {
353 	FILE *fp;
354 	char *cmd, *dialog;
355 	char tmp_name[] = "/tmp/_kbd_lang.XXXX";
356 	int fd, i, size;
357 
358 	fd = mkstemp(tmp_name);
359 	if (fd == -1) {
360 		fprintf(stderr, "Could not open temporary file \"%s\"\n",
361 		    tmp_name);
362 		exit(1);
363 	}
364 	asprintf(&dialog, "/usr/bin/dialog --clear --title \"%s\" "
365 			  "--menu \"%s\" 0 0 0", title, menu);
366 
367 	/* start right font, assume that current font is equal
368 	 * to default font in /etc/rc.conf
369 	 *
370 	 * $font is the font which require the language $lang; e.g.
371 	 * russian *need* a koi8 font
372 	 * $font_current is the current font from /etc/rc.conf
373 	 */
374 	if (font && strcmp(font, font_current))
375 		vidcontrol(font);
376 
377 	/* Build up the command */
378 	size = 0;
379 	for (i=0; i<num_keymaps; i++) {
380 		/*
381 		 * Each 'font' is passed as ' "font" ""', so allow the
382 		 * extra space
383 		 */
384 		size += strlen(km_sorted[i]->desc) + 6;
385 	}
386 
387 	/* Allow the space for '2> tmpfilename' redirection */
388 	size += strlen(tmp_name) + 3;
389 
390 	cmd = (char *) malloc(strlen(dialog) + size + 1);
391 	strcpy(cmd, dialog);
392 
393 	for (i=0; i<num_keymaps; i++) {
394 		strcat(cmd, " \"");
395 		strcat(cmd, km_sorted[i]->desc);
396 		strcat(cmd, "\"");
397 		strcat(cmd, " \"\"");
398 	}
399 
400 	strcat(cmd, " 2>");
401 	strcat(cmd, tmp_name);
402 
403 	/* Show the dialog.. */
404 	system(cmd);
405 
406 	fp = fopen(tmp_name, "r");
407 	if (fp) {
408 		char choice[64];
409 		if (fgets(choice, sizeof(choice), fp) != NULL) {
410 			/* Find key for desc */
411 			for (i=0; i<num_keymaps; i++) {
412 				if (!strcmp(choice, km_sorted[i]->desc)) {
413 					if (!strcmp(program, "kbdmap"))
414 						do_kbdcontrol(km_sorted[i]);
415 					else
416 						do_vidfont(km_sorted[i]);
417 					break;
418 				}
419 			}
420 		} else {
421 			if (font != NULL && strcmp(font, font_current))
422 				/* Cancelled, restore old font */
423 				vidcontrol(font_current);
424 		}
425 		fclose(fp);
426 	} else
427 		fprintf(stderr, "Failed to open temporary file");
428 
429 	/* Tidy up */
430 	remove(tmp_name);
431 	free(cmd);
432 	free(dialog);
433 	close(fd);
434 }
435 
436 /*
437  * Search for 'token' in comma delimited array 'buffer'.
438  * Return true for found, false for not found.
439  */
440 static int
441 find_token(const char *buffer, const char *token)
442 {
443 	char *buffer_tmp, *buffer_copy, *inputstring;
444 	char **ap;
445 	int found;
446 
447 	buffer_copy = strdup(buffer);
448 	buffer_tmp = buffer_copy;
449 	inputstring = buffer_copy;
450 	ap = &buffer_tmp;
451 
452 	found = 0;
453 
454 	while ((*ap = strsep(&inputstring, ",")) != NULL) {
455 		if (strcmp(buffer_tmp, token) == 0) {
456 			found = 1;
457 			break;
458 		}
459 	}
460 
461 	free(buffer_copy);
462 
463 	return found;
464 }
465 
466 /*
467  * Compare function for qsort
468  */
469 static int
470 compare_keymap(const void *a, const void *b)
471 {
472 
473 	/* We've been passed pointers to pointers, so: */
474 	const struct keymap *km1 = *((const struct keymap * const *) a);
475 	const struct keymap *km2 = *((const struct keymap * const *) b);
476 
477 	return strcmp(km1->desc, km2->desc);
478 }
479 
480 /*
481  * Compare function for qsort
482  */
483 static int
484 compare_lang(const void *a, const void *b)
485 {
486 	const char *l1 = *((const char * const *) a);
487 	const char *l2 = *((const char * const *) b);
488 
489 	return strcmp(l1, l2);
490 }
491 
492 /*
493  * Change '8x8' to '8x08' so qsort will put it before eg. '8x14'
494  */
495 static void
496 kludge_desc(struct keymap **km_sorted, int num_keymaps)
497 {
498 	int i;
499 
500 	for (i=0; i<num_keymaps; i++) {
501 		char *p;
502 		char *km = km_sorted[i]->desc;
503 		if ((p = strstr(km, "8x8")) != NULL) {
504 			int len;
505 			int j;
506 			int offset;
507 
508 			offset = p - km;
509 
510 			/* Make enough space for the extra '0' */
511 			len = strlen(km);
512 			km = realloc(km, len + 2);
513 
514 			for (j=len; j!=offset+1; j--)
515 				km[j + 1] = km[j];
516 
517 			km[offset+2] = '0';
518 
519 			km_sorted[i]->desc = km;
520 		}
521 	}
522 }
523 
524 /*
525  * Reverse 'kludge_desc()' - change '8x08' back to '8x8'
526  */
527 static void
528 unkludge_desc(struct keymap **km_sorted, int num_keymaps)
529 {
530 	int i;
531 
532 	for (i=0; i<num_keymaps; i++) {
533 		char *p;
534 		char *km = km_sorted[i]->desc;
535 		if ((p = strstr(km, "8x08")) != NULL) {
536 			p += 2;
537 			while (*p++)
538 				p[-1] = p[0];
539 
540 			km = realloc(km, p - km - 1);
541 			km_sorted[i]->desc = km;
542 		}
543 	}
544 }
545 
546 /*
547  * Return 0 if file exists and is readable, else -1
548  */
549 static int
550 check_file(const char *keym)
551 {
552 	int status = 0;
553 
554 	if (access(keym, R_OK) == -1) {
555 		char *fn;
556 		asprintf(&fn, "%s/%s", dir, keym);
557 		if (access(fn, R_OK) == -1) {
558 			if (verbose)
559 				fprintf(stderr, "%s not found!\n", fn);
560 			status = -1;
561 		}
562 		free(fn);
563 	} else {
564 		if (verbose)
565 			fprintf(stderr, "No read permission for %s!\n", keym);
566 		status = -1;
567 	}
568 
569 	return status;
570 }
571 
572 /*
573  * Read options from the relevant configuration file, then
574  *  present to user.
575  */
576 static void
577 menu_read(void)
578 {
579 	const char *lg;
580 	char *p;
581 	int mark, num_keymaps, items, i;
582 	char buffer[256], filename[PATH_MAX];
583 	char keym[64], lng[64], desc[256];
584 	char dialect[64], lang_abk[64];
585 	struct keymap *km;
586 	struct keymap **km_sorted;
587 	struct dirent *dp;
588 	StringList *lang_list;
589 	FILE *fp;
590 	DIR *dirp;
591 
592 	lang_list = sl_init();
593 
594 	sprintf(filename, "%s/INDEX.%s", dir, extract_name(dir));
595 
596 	/* en_US.ISO8859-1 -> en_..\.ISO8859-1 */
597 	strlcpy(dialect, lang, sizeof(dialect));
598 	if (strlen(dialect) >= 6 && dialect[2] == '_') {
599 		dialect[3] = '.';
600 		dialect[4] = '.';
601 	}
602 
603 
604 	/* en_US.ISO8859-1 -> en */
605 	strlcpy(lang_abk, lang, sizeof(lang_abk));
606 	if (strlen(lang_abk) >= 3 && lang_abk[2] == '_')
607 		lang_abk[2] = '\0';
608 
609 	fprintf(stderr, "lang_default = %s\n", lang_default);
610 	fprintf(stderr, "dialect = %s\n", dialect);
611 	fprintf(stderr, "lang_abk = %s\n", lang_abk);
612 
613 	fp = fopen(filename, "r");
614 	if (fp) {
615 		int matches;
616 		while (fgets(buffer, sizeof(buffer), fp)) {
617 			p = buffer;
618 			if (p[0] == '#')
619 				continue;
620 
621 			while (isspace(*p))
622 				p++;
623 
624 			if (*p == '\0')
625 				continue;
626 
627 			/* Parse input, removing newline */
628 			matches = sscanf(p, "%64[^:]:%64[^:]:%256[^:\n]",
629 			    keym, lng, desc);
630 			if (matches == 3) {
631 				if (strcmp(keym, "FONT") != 0 &&
632 				    strcmp(keym, "MENU") != 0 &&
633 				    strcmp(keym, "TITLE") != 0) {
634 					/* Check file exists & is readable */
635 					if (check_file(keym) == -1)
636 						continue;
637 				}
638 			}
639 
640 			if (show) {
641 				/*
642 				 * Take note of supported languages, which
643 				 * might be in a comma-delimited list
644 				 */
645 				char *tmp = strdup(lng);
646 				char *delim = tmp;
647 
648 				for (delim = tmp; ; ) {
649 					char ch = *delim++;
650 					if (ch == ',' || ch == '\0') {
651 						delim[-1] = '\0';
652 						if (!sl_find(lang_list, tmp))
653 							sl_add(lang_list, tmp);
654 						if (ch == '\0')
655 							break;
656 						tmp = delim;
657 					}
658 				}
659 			}
660 			/* Set empty language to default language */
661 			if (lng[0] == '\0')
662 				lg = lang_default;
663 			else
664 				lg = lng;
665 
666 
667 			/* 4) Your choice if it exists
668 			 * 3) Long match eg. en_GB.ISO8859-1 is equal to
669 			 *      en_..\.ISO8859-1
670 			 * 2) short match 'de'
671 			 * 1) default langlist 'en'
672 			 * 0) any language
673 			 *
674 			 * Language may be a comma separated list
675 			 * A higher match overwrites a lower
676 			 * A later entry overwrites a previous if it exists
677 			 *     twice in the database
678 			 */
679 
680 			/* Check for favoured language */
681 			km = get_keymap(keym);
682 			mark = (km) ? km->mark : 0;
683 
684 			if (find_token(lg, lang))
685 				add_keymap(desc, 4, keym);
686 			else if (mark <= 3 && find_token(lg, dialect))
687 				add_keymap(desc, 3, keym);
688 			else if (mark <= 2 && find_token(lg, lang_abk))
689 				add_keymap(desc, 2, keym);
690 			else if (mark <= 1 && find_token(lg, lang_default))
691 				add_keymap(desc, 1, keym);
692 			else if (mark <= 0)
693 				add_keymap(desc, 0, keym);
694 		}
695 		fclose(fp);
696 
697 	} else
698 		fprintf(stderr, "Could not open %s for reading\n", filename);
699 
700 	if (show) {
701 		qsort(lang_list->sl_str, lang_list->sl_cur, sizeof(char*),
702 		    compare_lang);
703 		printf("Currently supported languages: ");
704 		for (i=0; i< (int) lang_list->sl_cur; i++)
705 			printf("%s ", lang_list->sl_str[i]);
706 		puts("");
707 		exit(0);
708 	}
709 
710 	km = get_keymap("TITLE");
711 	if (km)
712 		/* Take note of dialog title */
713 		title = strdup(km->desc);
714 	km = get_keymap("MENU");
715 	if (km)
716 		/* Take note of menu title */
717 		menu = strdup(km->desc);
718 	km = get_keymap("FONT");
719 	if (km)
720 		/* Take note of language font */
721 		font = strdup(km->desc);
722 
723 	/* Remove unwanted items from list */
724 	remove_keymap("FONT");
725 	remove_keymap("MENU");
726 	remove_keymap("TITLE");
727 
728 	/* Look for keymaps not in database */
729 	dirp = opendir(dir);
730 	if (dirp) {
731 		while ((dp = readdir(dirp)) != NULL) {
732 			const char *ext = get_extension(dp->d_name);
733 			if (ext) {
734 				if ((!strcmp(ext, ".fnt") ||
735 				    !strcmp(ext, ".kbd")) &&
736 				    !get_keymap(dp->d_name)) {
737 					char *q;
738 
739 					/* Remove any .fnt or .kbd extension */
740 					q = strdup(dp->d_name);
741 					*(get_extension(q)) = '\0';
742 					add_keymap(q, 0, dp->d_name);
743 					free(q);
744 
745 					if (verbose)
746 						fprintf(stderr,
747 						    "'%s' not in database\n",
748 						    dp->d_name);
749 				}
750 			}
751 		}
752 		closedir(dirp);
753 	} else
754 		fprintf(stderr, "Could not open directory '%s'\n", dir);
755 
756 	/* Sort items in keymap */
757 	num_keymaps = get_num_keymaps();
758 
759 	km_sorted = (struct keymap **)
760 	    malloc(num_keymaps*sizeof(struct keymap *));
761 
762 	/* Make array of pointers to items in hash */
763 	items = 0;
764 	SLIST_FOREACH(km, &head, entries)
765 		km_sorted[items++] = km;
766 
767 	/* Change '8x8' to '8x08' so sort works as we might expect... */
768 	kludge_desc(km_sorted, num_keymaps);
769 
770 	qsort(km_sorted, num_keymaps, sizeof(struct keymap *), compare_keymap);
771 
772 	/* ...change back again */
773 	unkludge_desc(km_sorted, num_keymaps);
774 
775 	if (print) {
776 		for (i=0; i<num_keymaps; i++)
777 			printf("%s\n", km_sorted[i]->desc);
778 		exit(0);
779 	}
780 
781 	show_dialog(km_sorted, num_keymaps);
782 
783 	free(km_sorted);
784 }
785 
786 /*
787  * Display usage information and exit
788  */
789 static void
790 usage(void)
791 {
792 
793 	fprintf(stderr, "usage: %s\t[-K] [-V] [-d|-default] [-h|-help] "
794 	    "[-l|-lang language]\n\t\t[-p|-print] [-r|-restore] [-s|-show] "
795 	    "[-v|-verbose]\n", program);
796 	exit(1);
797 }
798 
799 static void
800 parse_args(int argc, char **argv)
801 {
802 	int i;
803 
804 	for (i=1; i<argc; i++) {
805 		if (argv[i][0] != '-')
806 			usage();
807 		else if (!strcmp(argv[i], "-help") || !strcmp(argv[i], "-h"))
808 			usage();
809 		else if (!strcmp(argv[i], "-verbose") || !strcmp(argv[i], "-v"))
810 			verbose = 1;
811 		else if (!strcmp(argv[i], "-lang") || !strcmp(argv[i], "-l"))
812 			if (i + 1 == argc)
813 				usage();
814 			else
815 				lang = argv[++i];
816 		else if (!strcmp(argv[i], "-default") || !strcmp(argv[i], "-d"))
817 			lang = lang_default;
818 		else if (!strcmp(argv[i], "-show") || !strcmp(argv[i], "-s"))
819 			show = 1;
820 		else if (!strcmp(argv[i], "-print") || !strcmp(argv[i], "-p"))
821 			print = 1;
822 		else if (!strcmp(argv[i], "-restore") ||
823 		    !strcmp(argv[i], "-r")) {
824 			vidcontrol(font_current);
825 			exit(0);
826 		} else if (!strcmp(argv[i], "-K"))
827 			dir = keymapdir;
828 		else if (!strcmp(argv[i], "-V"))
829 			dir = fontdir;
830 		else
831 			usage();
832 	}
833 }
834 
835 /*
836  * A front-end for the 'vidfont' and 'kbdmap' programs.
837  */
838 int
839 main(int argc, char **argv)
840 {
841 
842 	x11 = system("kbdcontrol -d >/dev/null");
843 
844 	if (x11) {
845 		fprintf(stderr, "You are not on a virtual console - "
846 				"expect certain strange side-effects\n");
847 		sleep(2);
848 	}
849 
850 	using_vt = check_vt();
851 	if (using_vt == 0) {
852 		keymapdir = DEFAULT_SC_KEYMAP_DIR;
853 		fontdir = DEFAULT_SC_FONT_DIR;
854 		font_default = DEFAULT_SC_FONT;
855 	}
856 
857 	SLIST_INIT(&head);
858 
859 	lang = get_locale();
860 
861 	program = extract_name(argv[0]);
862 
863 	font_current = get_font();
864 	if (font_current == NULL)
865 		font_current = font_default;
866 
867 	if (strcmp(program, "kbdmap"))
868 		dir = fontdir;
869 	else
870 		dir = keymapdir;
871 
872 	/* Parse command line arguments */
873 	parse_args(argc, argv);
874 
875 	/* Read and display options */
876 	menu_read();
877 
878 	return 0;
879 }
880