kqueue: Nuke unused code
[dragonfly.git] / usr.sbin / kbdmap / kbdmap.c
blob78bef55bd332393ec6283634393f05301305a48a
1 /*-
2 * Copyright (c) 2002 Jonathan Belson <jon@witchspace.com>
3 * All rights reserved.
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.
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.
26 * $FreeBSD: head/usr.sbin/kbdmap/kbdmap.c 237257 2012-06-19 06:10:31Z eadler $
29 #include <sys/types.h>
30 #include <sys/queue.h>
32 #include <assert.h>
33 #include <ctype.h>
34 #include <dirent.h>
35 #include <limits.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <string.h>
39 #include <stringlist.h>
40 #include <unistd.h>
42 #include "kbdmap.h"
45 static const char *lang_default = DEFAULT_LANG;
46 static const char *font;
47 static const char *lang;
48 static const char *program;
49 static const char *keymapdir = DEFAULT_KEYMAP_DIR;
50 static const char *fontdir = DEFAULT_FONT_DIR;
51 static const char *sysconfig = DEFAULT_SYSCONFIG;
52 static const char *font_default = DEFAULT_FONT;
53 static const char *font_current;
54 static const char *dir;
55 static const char *menu = "";
57 static int x11;
58 static int show;
59 static int verbose;
60 static int print;
63 struct keymap {
64 char *desc;
65 char *keym;
66 int mark;
67 SLIST_ENTRY(keymap) entries;
69 static SLIST_HEAD(slisthead, keymap) head = SLIST_HEAD_INITIALIZER(head);
73 * Get keymap entry for 'key', or NULL of not found
75 static struct keymap *
76 get_keymap(const char *key)
78 struct keymap *km;
80 SLIST_FOREACH(km, &head, entries)
81 if (!strcmp(km->keym, key))
82 return km;
84 return NULL;
88 * Count the number of keymaps we found
90 static int
91 get_num_keymaps(void)
93 struct keymap *km;
94 int count = 0;
96 SLIST_FOREACH(km, &head, entries)
97 count++;
99 return count;
103 * Remove any keymap with given keym
105 static void
106 remove_keymap(const char *keym)
108 struct keymap *km;
110 SLIST_FOREACH(km, &head, entries) {
111 if (!strcmp(keym, km->keym)) {
112 SLIST_REMOVE(&head, km, keymap, entries);
113 free(km);
114 break;
120 * Add to hash with 'key'
122 static void
123 add_keymap(const char *desc, int mark, const char *keym)
125 struct keymap *km, *km_new;
127 /* Is there already an entry with this key? */
128 SLIST_FOREACH(km, &head, entries) {
129 if (!strcmp(km->keym, keym)) {
130 /* Reuse this entry */
131 free(km->desc);
132 km->desc = strdup(desc);
133 km->mark = mark;
134 return;
138 km_new = (struct keymap *) malloc (sizeof(struct keymap));
139 km_new->desc = strdup(desc);
140 km_new->keym = strdup(keym);
141 km_new->mark = mark;
143 /* Add to keymap list */
144 SLIST_INSERT_HEAD(&head, km_new, entries);
148 * Figure out the default language to use.
150 static const char *
151 get_locale(void)
153 const char *locale;
155 if ((locale = getenv("LC_ALL")) == NULL &&
156 (locale = getenv("LC_CTYPE")) == NULL &&
157 (locale = getenv("LANG")) == NULL)
158 locale = lang_default;
160 /* Check for alias */
161 if (!strcmp(locale, "C"))
162 locale = DEFAULT_LANG;
164 return locale;
168 * Extract filename part
170 static const char *
171 extract_name(const char *name)
173 char *p;
175 p = strrchr(name, '/');
176 if (p != NULL && p[1] != '\0')
177 return p + 1;
179 return name;
183 * Return file extension or NULL
185 static char *
186 get_extension(const char *name)
188 char *p;
190 p = strrchr(name, '.');
192 if (p != NULL && p[1] != '\0')
193 return p;
195 return NULL;
199 * Read font from /etc/rc.conf else return default.
200 * Freeing the memory is the caller's responsibility.
202 static char *
203 get_font(void)
205 char line[256], buf[20];
206 char *fnt = NULL;
208 FILE *fp = fopen(sysconfig, "r");
209 if (fp) {
210 while (fgets(line, sizeof(line), fp)) {
211 int a, b, matches;
213 if (line[0] == '#')
214 continue;
216 matches = sscanf(line,
217 " font%dx%d = \"%20[-.0-9a-zA-Z_]",
218 &a, &b, buf);
219 if (matches==3) {
220 if (strcmp(buf, "NO")) {
221 if (fnt)
222 free(fnt);
223 fnt = (char *) malloc(strlen(buf) + 1);
224 strcpy(fnt, buf);
228 fclose(fp);
229 } else
230 fprintf(stderr, "Could not open %s for reading\n", sysconfig);
232 return fnt;
236 * Set a font using 'vidcontrol'
238 static void
239 vidcontrol(const char *fnt)
241 char *tmp, *p, *q;
242 char ch;
243 int i;
245 /* syscons test failed */
246 if (x11)
247 return;
249 tmp = strdup(fnt);
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';
260 * Check font size is valid, with no trailing characters
261 * ('&ch' should not be matched)
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);
273 } else
274 fprintf(stderr, "Which font size? %s\n", fnt);
276 free(tmp);
280 * Execute 'kbdcontrol' with the appropriate arguments
282 static void
283 do_kbdcontrol(struct keymap *km)
285 char *kbd_cmd;
286 asprintf(&kbd_cmd, "kbdcontrol -l %s/%s", dir, km->keym);
288 if (!x11)
289 system(kbd_cmd);
291 fprintf(stderr, "keymap=\"%s\"\n", km->keym);
292 free(kbd_cmd);
296 * Call 'vidcontrol' with the appropriate arguments
298 static void
299 do_vidfont(struct keymap *km)
301 char *vid_cmd, *tmp, *p, *q;
303 asprintf(&vid_cmd, "%s/%s", dir, km->keym);
304 vidcontrol(vid_cmd);
305 free(vid_cmd);
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);
317 free(tmp);
321 * Display dialog from 'keymaps[]'
323 static void
324 show_dialog(struct keymap **km_sorted, int num_keymaps)
326 FILE *fp;
327 char *cmd, *dialog;
328 char tmp_name[] = "/tmp/_kbd_lang.XXXX";
329 int fd, i, size;
331 fd = mkstemp(tmp_name);
332 if (fd == -1) {
333 fprintf(stderr, "Could not open temporary file \"%s\"\n",
334 tmp_name);
335 exit(1);
337 asprintf(&dialog, "/usr/bin/dialog --clear --title \"Keyboard Menu\" "
338 "--menu \"%s\" 0 0 0", menu);
340 /* start right font, assume that current font is equal
341 * to default font in /etc/rc.conf
343 * $font is the font which require the language $lang; e.g.
344 * russian *need* a koi8 font
345 * $font_current is the current font from /etc/rc.conf
347 if (font && strcmp(font, font_current))
348 vidcontrol(font);
350 /* Build up the command */
351 size = 0;
352 for (i=0; i<num_keymaps; i++) {
354 * Each 'font' is passed as ' "font" ""', so allow the
355 * extra space
357 size += strlen(km_sorted[i]->desc) + 6;
360 /* Allow the space for '2> tmpfilename' redirection */
361 size += strlen(tmp_name) + 3;
363 cmd = (char *) malloc(strlen(dialog) + size + 1);
364 strcpy(cmd, dialog);
366 for (i=0; i<num_keymaps; i++) {
367 strcat(cmd, " \"");
368 strcat(cmd, km_sorted[i]->desc);
369 strcat(cmd, "\"");
370 strcat(cmd, " \"\"");
373 strcat(cmd, " 2>");
374 strcat(cmd, tmp_name);
376 /* Show the dialog.. */
377 system(cmd);
379 fp = fopen(tmp_name, "r");
380 if (fp) {
381 char choice[64];
382 if (fgets(choice, sizeof(choice), fp) != NULL) {
383 /* Find key for desc */
384 for (i=0; i<num_keymaps; i++) {
385 if (!strcmp(choice, km_sorted[i]->desc)) {
386 if (!strcmp(program, "kbdmap"))
387 do_kbdcontrol(km_sorted[i]);
388 else
389 do_vidfont(km_sorted[i]);
390 break;
393 } else {
394 if (font != NULL && strcmp(font, font_current))
395 /* Cancelled, restore old font */
396 vidcontrol(font_current);
398 fclose(fp);
399 } else
400 fprintf(stderr, "Failed to open temporary file");
402 /* Tidy up */
403 remove(tmp_name);
404 free(cmd);
405 free(dialog);
406 close(fd);
410 * Search for 'token' in comma delimited array 'buffer'.
411 * Return true for found, false for not found.
413 static int
414 find_token(const char *buffer, const char *token)
416 char *buffer_tmp, *buffer_copy, *inputstring;
417 char **ap;
418 int found;
420 buffer_copy = strdup(buffer);
421 buffer_tmp = buffer_copy;
422 inputstring = buffer_copy;
423 ap = &buffer_tmp;
425 found = 0;
427 while ((*ap = strsep(&inputstring, ",")) != NULL) {
428 if (strcmp(buffer_tmp, token) == 0) {
429 found = 1;
430 break;
434 free(buffer_copy);
436 return found;
440 * Compare function for qsort
442 static int
443 compare_keymap(const void *a, const void *b)
446 /* We've been passed pointers to pointers, so: */
447 const struct keymap *km1 = *((const struct keymap * const *) a);
448 const struct keymap *km2 = *((const struct keymap * const *) b);
450 return strcmp(km1->desc, km2->desc);
454 * Compare function for qsort
456 static int
457 compare_lang(const void *a, const void *b)
459 const char *l1 = *((const char * const *) a);
460 const char *l2 = *((const char * const *) b);
462 return strcmp(l1, l2);
466 * Change '8x8' to '8x08' so qsort will put it before eg. '8x14'
468 static void
469 kludge_desc(struct keymap **km_sorted, int num_keymaps)
471 int i;
473 for (i=0; i<num_keymaps; i++) {
474 char *p;
475 char *km = km_sorted[i]->desc;
476 if ((p = strstr(km, "8x8")) != NULL) {
477 int len;
478 int j;
479 int offset;
481 offset = p - km;
483 /* Make enough space for the extra '0' */
484 len = strlen(km);
485 km = realloc(km, len + 2);
487 for (j=len; j!=offset+1; j--)
488 km[j + 1] = km[j];
490 km[offset+2] = '0';
492 km_sorted[i]->desc = km;
498 * Reverse 'kludge_desc()' - change '8x08' back to '8x8'
500 static void
501 unkludge_desc(struct keymap **km_sorted, int num_keymaps)
503 int i;
505 for (i=0; i<num_keymaps; i++) {
506 char *p;
507 char *km = km_sorted[i]->desc;
508 if ((p = strstr(km, "8x08")) != NULL) {
509 p += 2;
510 while (*p++)
511 p[-1] = p[0];
513 km = realloc(km, p - km - 1);
514 km_sorted[i]->desc = km;
520 * Return 0 if file exists and is readable, else -1
522 static int
523 check_file(const char *keym)
525 int status = 0;
527 if (access(keym, R_OK) == -1) {
528 char *fn;
529 asprintf(&fn, "%s/%s", dir, keym);
530 if (access(fn, R_OK) == -1) {
531 if (verbose)
532 fprintf(stderr, "%s not found!\n", fn);
533 status = -1;
535 free(fn);
536 } else {
537 if (verbose)
538 fprintf(stderr, "No read permission for %s!\n", keym);
539 status = -1;
542 return status;
546 * Read options from the relevant configuration file, then
547 * present to user.
549 static void
550 menu_read(void)
552 const char *lg;
553 char *p;
554 int mark, num_keymaps, items, i;
555 char buffer[256], filename[PATH_MAX];
556 char keym[64], lng[64], desc[64];
557 char dialect[64], lang_abk[64];
558 struct keymap *km;
559 struct keymap **km_sorted;
560 struct dirent *dp;
561 StringList *lang_list;
562 FILE *fp;
563 DIR *dirp;
565 lang_list = sl_init();
567 sprintf(filename, "%s/INDEX.%s", dir, extract_name(dir));
569 /* en_US.ISO8859-1 -> en_..\.ISO8859-1 */
570 strlcpy(dialect, lang, sizeof(dialect));
571 if (strlen(dialect) >= 6 && dialect[2] == '_') {
572 dialect[3] = '.';
573 dialect[4] = '.';
577 /* en_US.ISO8859-1 -> en */
578 strlcpy(lang_abk, lang, sizeof(lang_abk));
579 if (strlen(lang_abk) >= 3 && lang_abk[2] == '_')
580 lang_abk[2] = '\0';
582 fprintf(stderr, "lang_default = %s\n", lang_default);
583 fprintf(stderr, "dialect = %s\n", dialect);
584 fprintf(stderr, "lang_abk = %s\n", lang_abk);
586 fp = fopen(filename, "r");
587 if (fp) {
588 int matches;
589 while (fgets(buffer, sizeof(buffer), fp)) {
590 p = buffer;
591 if (p[0] == '#')
592 continue;
594 while (isspace(*p))
595 p++;
597 if (*p == '\0')
598 continue;
600 /* Parse input, removing newline */
601 matches = sscanf(p, "%64[^:]:%64[^:]:%64[^:\n]",
602 keym, lng, desc);
603 if (matches == 3) {
604 if (strcmp(keym, "FONT")
605 && strcmp(keym, "MENU")) {
606 /* Check file exists & is readable */
607 if (check_file(keym) == -1)
608 continue;
612 if (show) {
614 * Take note of supported languages, which
615 * might be in a comma-delimited list
617 char *tmp = strdup(lng);
618 char *delim = tmp;
620 for (delim = tmp; ; ) {
621 char ch = *delim++;
622 if (ch == ',' || ch == '\0') {
623 delim[-1] = '\0';
624 if (!sl_find(lang_list, tmp))
625 sl_add(lang_list, tmp);
626 if (ch == '\0')
627 break;
628 tmp = delim;
632 /* Set empty language to default language */
633 if (lng[0] == '\0')
634 lg = lang_default;
635 else
636 lg = lng;
639 /* 4) Your choice if it exists
640 * 3) Long match eg. en_GB.ISO8859-1 is equal to
641 * en_..\.ISO8859-1
642 * 2) short match 'de'
643 * 1) default langlist 'en'
644 * 0) any language
646 * Language may be a comma separated list
647 * A higher match overwrites a lower
648 * A later entry overwrites a previous if it exists
649 * twice in the database
652 /* Check for favoured language */
653 km = get_keymap(keym);
654 mark = (km) ? km->mark : 0;
656 if (find_token(lg, lang))
657 add_keymap(desc, 4, keym);
658 else if (mark <= 3 && find_token(lg, dialect))
659 add_keymap(desc, 3, keym);
660 else if (mark <= 2 && find_token(lg, lang_abk))
661 add_keymap(desc, 2, keym);
662 else if (mark <= 1 && find_token(lg, lang_default))
663 add_keymap(desc, 1, keym);
664 else if (mark <= 0)
665 add_keymap(desc, 0, keym);
667 fclose(fp);
669 } else
670 printf("Could not open file\n");
672 if (show) {
673 qsort(lang_list->sl_str, lang_list->sl_cur, sizeof(char*),
674 compare_lang);
675 printf("Currently supported languages: ");
676 for (i=0; i< (int) lang_list->sl_cur; i++)
677 printf("%s ", lang_list->sl_str[i]);
678 puts("");
679 exit(0);
682 km = get_keymap("MENU");
683 if (km)
684 /* Take note of menu title */
685 menu = strdup(km->desc);
686 km = get_keymap("FONT");
687 if (km)
688 /* Take note of language font */
689 font = strdup(km->desc);
691 /* Remove unwanted items from list */
692 remove_keymap("MENU");
693 remove_keymap("FONT");
695 /* Look for keymaps not in database */
696 dirp = opendir(dir);
697 if (dirp) {
698 while ((dp = readdir(dirp)) != NULL) {
699 const char *ext = get_extension(dp->d_name);
700 if (ext) {
701 if ((!strcmp(ext, ".fnt") ||
702 !strcmp(ext, ".kbd")) &&
703 !get_keymap(dp->d_name)) {
704 char *q;
706 /* Remove any .fnt or .kbd extension */
707 q = strdup(dp->d_name);
708 *(get_extension(q)) = '\0';
709 add_keymap(q, 0, dp->d_name);
710 free(q);
712 if (verbose)
713 fprintf(stderr,
714 "'%s' not in database\n",
715 dp->d_name);
719 closedir(dirp);
720 } else
721 fprintf(stderr, "Could not open directory '%s'\n", dir);
723 /* Sort items in keymap */
724 num_keymaps = get_num_keymaps();
726 km_sorted = (struct keymap **)
727 malloc(num_keymaps*sizeof(struct keymap *));
729 /* Make array of pointers to items in hash */
730 items = 0;
731 SLIST_FOREACH(km, &head, entries)
732 km_sorted[items++] = km;
734 /* Change '8x8' to '8x08' so sort works as we might expect... */
735 kludge_desc(km_sorted, num_keymaps);
737 qsort(km_sorted, num_keymaps, sizeof(struct keymap *), compare_keymap);
739 /* ...change back again */
740 unkludge_desc(km_sorted, num_keymaps);
742 if (print) {
743 for (i=0; i<num_keymaps; i++)
744 printf("%s\n", km_sorted[i]->desc);
745 exit(0);
748 show_dialog(km_sorted, num_keymaps);
750 free(km_sorted);
754 * Display usage information and exit
756 static void
757 usage(void)
760 fprintf(stderr, "usage: %s\t[-K] [-V] [-d|-default] [-h|-help] "
761 "[-l|-lang language]\n\t\t[-p|-print] [-r|-restore] [-s|-show] "
762 "[-v|-verbose]\n", program);
763 exit(1);
766 static void
767 parse_args(int argc, char **argv)
769 int i;
771 for (i=1; i<argc; i++) {
772 if (argv[i][0] != '-')
773 usage();
774 else if (!strcmp(argv[i], "-help") || !strcmp(argv[i], "-h"))
775 usage();
776 else if (!strcmp(argv[i], "-verbose") || !strcmp(argv[i], "-v"))
777 verbose = 1;
778 else if (!strcmp(argv[i], "-lang") || !strcmp(argv[i], "-l"))
779 if (i + 1 == argc)
780 usage();
781 else
782 lang = argv[++i];
783 else if (!strcmp(argv[i], "-default") || !strcmp(argv[i], "-d"))
784 lang = lang_default;
785 else if (!strcmp(argv[i], "-show") || !strcmp(argv[i], "-s"))
786 show = 1;
787 else if (!strcmp(argv[i], "-print") || !strcmp(argv[i], "-p"))
788 print = 1;
789 else if (!strcmp(argv[i], "-restore") ||
790 !strcmp(argv[i], "-r")) {
791 vidcontrol(font_current);
792 exit(0);
793 } else if (!strcmp(argv[i], "-K"))
794 dir = keymapdir;
795 else if (!strcmp(argv[i], "-V"))
796 dir = fontdir;
797 else
798 usage();
803 * A front-end for the 'vidfont' and 'kbdmap' programs.
806 main(int argc, char **argv)
809 x11 = system("kbdcontrol -d >/dev/null");
811 if (x11) {
812 fprintf(stderr, "You are not on a virtual console - "
813 "expect certain strange side-effects\n");
814 sleep(2);
817 SLIST_INIT(&head);
819 lang = get_locale();
821 program = extract_name(argv[0]);
823 font_current = get_font();
824 if (font_current == NULL)
825 font_current = font_default;
827 if (strcmp(program, "kbdmap"))
828 dir = fontdir;
829 else
830 dir = keymapdir;
832 /* Parse command line arguments */
833 parse_args(argc, argv);
835 /* Read and display options */
836 menu_read();
838 return 0;