locale.c revision 197764
1/*-
2 * Copyright (c) 2002, 2003 Alexey Zelkin <phantom@FreeBSD.org>
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 * $FreeBSD: head/usr.bin/locale/locale.c 197764 2009-10-05 07:11:19Z edwin $
27 */
28
29/*
30 * XXX: implement missing era_* (LC_TIME) keywords (require libc &
31 *	nl_langinfo(3) extensions)
32 *
33 * XXX: correctly handle reserved 'charmap' keyword and '-m' option (require
34 *      localedef(1) implementation).  Currently it's handled via
35 *	nl_langinfo(CODESET).
36 */
37
38#include <sys/types.h>
39#include <dirent.h>
40#include <err.h>
41#include <locale.h>
42#include <langinfo.h>
43#include <stdio.h>
44#include <stdlib.h>
45#include <string.h>
46#include <stringlist.h>
47#include <unistd.h>
48#include "setlocale.h"
49
50/* Local prototypes */
51void	init_locales_list(void);
52void	list_charmaps(void);
53void	list_locales(void);
54const char *lookup_localecat(int);
55char	*kwval_lconv(int);
56int	kwval_lookup(char *, char **, int *, int *);
57void	showdetails(char *);
58void	showkeywordslist(char *substring);
59void	showlocale(void);
60void	usage(void);
61
62/* Global variables */
63static StringList *locales = NULL;
64
65int	all_locales = 0;
66int	all_charmaps = 0;
67int	prt_categories = 0;
68int	prt_keywords = 0;
69int	more_params = 0;
70
71struct _lcinfo {
72	const char	*name;
73	int		id;
74} lcinfo [] = {
75	{ "LC_CTYPE",		LC_CTYPE },
76	{ "LC_COLLATE",		LC_COLLATE },
77	{ "LC_TIME",		LC_TIME },
78	{ "LC_NUMERIC",		LC_NUMERIC },
79	{ "LC_MONETARY",	LC_MONETARY },
80	{ "LC_MESSAGES",	LC_MESSAGES }
81};
82#define NLCINFO (sizeof(lcinfo)/sizeof(lcinfo[0]))
83
84/* ids for values not referenced by nl_langinfo() */
85#define	KW_ZERO			10000
86#define	KW_GROUPING		(KW_ZERO+1)
87#define KW_INT_CURR_SYMBOL 	(KW_ZERO+2)
88#define KW_CURRENCY_SYMBOL 	(KW_ZERO+3)
89#define KW_MON_DECIMAL_POINT 	(KW_ZERO+4)
90#define KW_MON_THOUSANDS_SEP 	(KW_ZERO+5)
91#define KW_MON_GROUPING 	(KW_ZERO+6)
92#define KW_POSITIVE_SIGN 	(KW_ZERO+7)
93#define KW_NEGATIVE_SIGN 	(KW_ZERO+8)
94#define KW_INT_FRAC_DIGITS 	(KW_ZERO+9)
95#define KW_FRAC_DIGITS 		(KW_ZERO+10)
96#define KW_P_CS_PRECEDES 	(KW_ZERO+11)
97#define KW_P_SEP_BY_SPACE 	(KW_ZERO+12)
98#define KW_N_CS_PRECEDES 	(KW_ZERO+13)
99#define KW_N_SEP_BY_SPACE 	(KW_ZERO+14)
100#define KW_P_SIGN_POSN 		(KW_ZERO+15)
101#define KW_N_SIGN_POSN 		(KW_ZERO+16)
102#define KW_INT_P_CS_PRECEDES 	(KW_ZERO+17)
103#define KW_INT_P_SEP_BY_SPACE 	(KW_ZERO+18)
104#define KW_INT_N_CS_PRECEDES 	(KW_ZERO+19)
105#define KW_INT_N_SEP_BY_SPACE 	(KW_ZERO+20)
106#define KW_INT_P_SIGN_POSN 	(KW_ZERO+21)
107#define KW_INT_N_SIGN_POSN 	(KW_ZERO+22)
108
109struct _kwinfo {
110	const char	*name;
111	int		isstr;		/* true - string, false - number */
112	int		catid;		/* LC_* */
113	int		value_ref;
114	const char	*comment;
115} kwinfo [] = {
116	{ "charmap",		1, LC_CTYPE,	CODESET, "" },	/* hack */
117
118	{ "decimal_point",	1, LC_NUMERIC,	RADIXCHAR, "" },
119	{ "thousands_sep",	1, LC_NUMERIC,	THOUSEP, "" },
120	{ "grouping",		1, LC_NUMERIC,	KW_GROUPING, "" },
121	{ "radixchar",		1, LC_NUMERIC,	RADIXCHAR,
122	  "Same as decimal_point (FreeBSD only)" },		/* compat */
123	{ "thousep",		1, LC_NUMERIC,	THOUSEP,
124	  "Same as thousands_sep (FreeBSD only)" },		/* compat */
125
126	{ "int_curr_symbol",	1, LC_MONETARY,	KW_INT_CURR_SYMBOL, "" },
127	{ "currency_symbol",	1, LC_MONETARY,	KW_CURRENCY_SYMBOL, "" },
128	{ "mon_decimal_point",	1, LC_MONETARY,	KW_MON_DECIMAL_POINT, "" },
129	{ "mon_thousands_sep",	1, LC_MONETARY,	KW_MON_THOUSANDS_SEP, "" },
130	{ "mon_grouping",	1, LC_MONETARY,	KW_MON_GROUPING, "" },
131	{ "positive_sign",	1, LC_MONETARY,	KW_POSITIVE_SIGN, "" },
132	{ "negative_sign",	1, LC_MONETARY,	KW_NEGATIVE_SIGN, "" },
133
134	{ "int_frac_digits",	0, LC_MONETARY,	KW_INT_FRAC_DIGITS, "" },
135	{ "frac_digits",	0, LC_MONETARY,	KW_FRAC_DIGITS, "" },
136	{ "p_cs_precedes",	0, LC_MONETARY,	KW_P_CS_PRECEDES, "" },
137	{ "p_sep_by_space",	0, LC_MONETARY,	KW_P_SEP_BY_SPACE, "" },
138	{ "n_cs_precedes",	0, LC_MONETARY,	KW_N_CS_PRECEDES, "" },
139	{ "n_sep_by_space",	0, LC_MONETARY,	KW_N_SEP_BY_SPACE, "" },
140	{ "p_sign_posn",	0, LC_MONETARY,	KW_P_SIGN_POSN, "" },
141	{ "n_sign_posn",	0, LC_MONETARY,	KW_N_SIGN_POSN, "" },
142	{ "int_p_cs_precedes",	0, LC_MONETARY,	KW_INT_P_CS_PRECEDES, "" },
143	{ "int_p_sep_by_space",	0, LC_MONETARY,	KW_INT_P_SEP_BY_SPACE, "" },
144	{ "int_n_cs_precedes",	0, LC_MONETARY,	KW_INT_N_CS_PRECEDES, "" },
145	{ "int_n_sep_by_space",	0, LC_MONETARY,	KW_INT_N_SEP_BY_SPACE, "" },
146	{ "int_p_sign_posn",	0, LC_MONETARY,	KW_INT_P_SIGN_POSN, "" },
147	{ "int_n_sign_posn",	0, LC_MONETARY,	KW_INT_N_SIGN_POSN, "" },
148
149	{ "d_t_fmt",		1, LC_TIME,	D_T_FMT, "" },
150	{ "d_fmt",		1, LC_TIME,	D_FMT, "" },
151	{ "t_fmt",		1, LC_TIME,	T_FMT, "" },
152	{ "c_fmt",		1, LC_TIME,	C_FMT, "" },
153	{ "x_fmt",		1, LC_TIME,	X_FMT, "" },
154	{ "X_fmt",		1, LC_TIME,	CAPITALX_FMT, "" },
155	{ "am_str",		1, LC_TIME,	AM_STR, "" },
156	{ "pm_str",		1, LC_TIME,	PM_STR, "" },
157	{ "t_fmt_ampm",		1, LC_TIME,	T_FMT_AMPM, "" },
158	{ "day_1",		1, LC_TIME,	DAY_1, "" },
159	{ "day_2",		1, LC_TIME,	DAY_2, "" },
160	{ "day_3",		1, LC_TIME,	DAY_3, "" },
161	{ "day_4",		1, LC_TIME,	DAY_4, "" },
162	{ "day_5",		1, LC_TIME,	DAY_5, "" },
163	{ "day_6",		1, LC_TIME,	DAY_6, "" },
164	{ "day_7",		1, LC_TIME,	DAY_7, "" },
165	{ "abday_1",		1, LC_TIME,	ABDAY_1, "" },
166	{ "abday_2",		1, LC_TIME,	ABDAY_2, "" },
167	{ "abday_3",		1, LC_TIME,	ABDAY_3, "" },
168	{ "abday_4",		1, LC_TIME,	ABDAY_4, "" },
169	{ "abday_5",		1, LC_TIME,	ABDAY_5, "" },
170	{ "abday_6",		1, LC_TIME,	ABDAY_6, "" },
171	{ "abday_7",		1, LC_TIME,	ABDAY_7, "" },
172	{ "mon_1",		1, LC_TIME,	MON_1, "" },
173	{ "mon_2",		1, LC_TIME,	MON_2, "" },
174	{ "mon_3",		1, LC_TIME,	MON_3, "" },
175	{ "mon_4",		1, LC_TIME,	MON_4, "" },
176	{ "mon_5",		1, LC_TIME,	MON_5, "" },
177	{ "mon_6",		1, LC_TIME,	MON_6, "" },
178	{ "mon_7",		1, LC_TIME,	MON_7, "" },
179	{ "mon_8",		1, LC_TIME,	MON_8, "" },
180	{ "mon_9",		1, LC_TIME,	MON_9, "" },
181	{ "mon_10",		1, LC_TIME,	MON_10, "" },
182	{ "mon_11",		1, LC_TIME,	MON_11, "" },
183	{ "mon_12",		1, LC_TIME,	MON_12, "" },
184	{ "abmon_1",		1, LC_TIME,	ABMON_1, "" },
185	{ "abmon_2",		1, LC_TIME,	ABMON_2, "" },
186	{ "abmon_3",		1, LC_TIME,	ABMON_3, "" },
187	{ "abmon_4",		1, LC_TIME,	ABMON_4, "" },
188	{ "abmon_5",		1, LC_TIME,	ABMON_5, "" },
189	{ "abmon_6",		1, LC_TIME,	ABMON_6, "" },
190	{ "abmon_7",		1, LC_TIME,	ABMON_7, "" },
191	{ "abmon_8",		1, LC_TIME,	ABMON_8, "" },
192	{ "abmon_9",		1, LC_TIME,	ABMON_9, "" },
193	{ "abmon_10",		1, LC_TIME,	ABMON_10, "" },
194	{ "abmon_11",		1, LC_TIME,	ABMON_11, "" },
195	{ "abmon_12",		1, LC_TIME,	ABMON_12, "" },
196	{ "altmon_1",		1, LC_TIME,	ALTMON_1, "" },
197	{ "altmon_2",		1, LC_TIME,	ALTMON_2, "" },
198	{ "altmon_3",		1, LC_TIME,	ALTMON_3, "" },
199	{ "altmon_4",		1, LC_TIME,	ALTMON_4, "" },
200	{ "altmon_5",		1, LC_TIME,	ALTMON_5, "" },
201	{ "altmon_6",		1, LC_TIME,	ALTMON_6, "" },
202	{ "altmon_7",		1, LC_TIME,	ALTMON_7, "" },
203	{ "altmon_8",		1, LC_TIME,	ALTMON_8, "" },
204	{ "altmon_9",		1, LC_TIME,	ALTMON_9, "" },
205	{ "altmon_10",		1, LC_TIME,	ALTMON_10, "" },
206	{ "altmon_11",		1, LC_TIME,	ALTMON_11, "" },
207	{ "altmon_12",		1, LC_TIME,	ALTMON_12, "" },
208	{ "era",		1, LC_TIME,	ERA, "(unavailable)" },
209	{ "era_d_fmt",		1, LC_TIME,	ERA_D_FMT, "(unavailable)" },
210	{ "era_d_t_fmt",	1, LC_TIME,	ERA_D_T_FMT, "(unavailable)" },
211	{ "era_t_fmt",		1, LC_TIME,	ERA_T_FMT, "(unavailable)" },
212	{ "alt_digits",		1, LC_TIME,	ALT_DIGITS, "" },
213	{ "d_md_order",		1, LC_TIME,	D_MD_ORDER,
214	  "(FreeBSD only)"				},	/* local */
215
216	{ "yesexpr",		1, LC_MESSAGES, YESEXPR, "" },
217	{ "noexpr",		1, LC_MESSAGES, NOEXPR, "" },
218	{ "yesstr",		1, LC_MESSAGES, YESSTR,
219	  "(POSIX legacy)" },					/* compat */
220	{ "nostr",		1, LC_MESSAGES, NOSTR,
221	  "(POSIX legacy)" }					/* compat */
222
223};
224#define NKWINFO (sizeof(kwinfo)/sizeof(kwinfo[0]))
225
226const char *boguslocales[] = { "UTF-8" };
227#define	NBOGUS	(sizeof(boguslocales)/sizeof(boguslocales[0]))
228
229int
230main(int argc, char *argv[])
231{
232	int	ch;
233	int	tmp;
234
235	while ((ch = getopt(argc, argv, "ackms:")) != -1) {
236		switch (ch) {
237		case 'a':
238			all_locales = 1;
239			break;
240		case 'c':
241			prt_categories = 1;
242			break;
243		case 'k':
244			prt_keywords = 1;
245			break;
246		case 'm':
247			all_charmaps = 1;
248			break;
249		default:
250			usage();
251		}
252	}
253	argc -= optind;
254	argv += optind;
255
256	/* validate arguments */
257	if (all_locales && all_charmaps)
258		usage();
259	if ((all_locales || all_charmaps) && argc > 0)
260		usage();
261	if ((all_locales || all_charmaps) && (prt_categories || prt_keywords))
262		usage();
263	if ((prt_categories || prt_keywords) && argc <= 0)
264		usage();
265
266	/* process '-a' */
267	if (all_locales) {
268		list_locales();
269		exit(0);
270	}
271
272	/* process '-m' */
273	if (all_charmaps) {
274		list_charmaps();
275		exit(0);
276	}
277
278	/* check for special case '-k list' */
279	tmp = 0;
280	if (prt_keywords && argc > 0)
281		while (tmp < argc)
282			if (strcasecmp(argv[tmp++], "list") == 0) {
283				showkeywordslist(argv[tmp]);
284				exit(0);
285			}
286
287	/* process '-c' and/or '-k' */
288	if (prt_categories || prt_keywords || argc > 0) {
289		setlocale(LC_ALL, "");
290		while (argc > 0) {
291			showdetails(*argv);
292			argv++;
293			argc--;
294		}
295		exit(0);
296	}
297
298	/* no arguments, show current locale state */
299	showlocale();
300
301	return (0);
302}
303
304void
305usage(void)
306{
307	printf("Usage: locale [ -a | -m ]\n"
308               "       locale -k list [prefix]\n"
309               "       locale [ -ck ] keyword ...\n");
310	exit(1);
311}
312
313/*
314 * Output information about all available locales
315 *
316 * XXX actually output of this function does not guarantee that locale
317 *     is really available to application, since it can be broken or
318 *     inconsistent thus setlocale() will fail.  Maybe add '-V' function to
319 *     also validate these locales?
320 */
321void
322list_locales(void)
323{
324	size_t i;
325
326	init_locales_list();
327	for (i = 0; i < locales->sl_cur; i++) {
328		printf("%s\n", locales->sl_str[i]);
329	}
330}
331
332/*
333 * qsort() helper function
334 */
335static int
336scmp(const void *s1, const void *s2)
337{
338	return strcmp(*(const char **)s1, *(const char **)s2);
339}
340
341/*
342 * Output information about all available charmaps
343 *
344 * XXX this function is doing a task in hackish way, i.e. by scaning
345 *     list of locales, spliting their codeset part and building list of
346 *     them.
347 */
348void
349list_charmaps(void)
350{
351	size_t i;
352	char *s, *cs;
353	StringList *charmaps;
354
355	/* initialize StringList */
356	charmaps = sl_init();
357	if (charmaps == NULL)
358		err(1, "could not allocate memory");
359
360	/* fetch locales list */
361	init_locales_list();
362
363	/* split codesets and build their list */
364	for (i = 0; i < locales->sl_cur; i++) {
365		s = locales->sl_str[i];
366		if ((cs = strchr(s, '.')) != NULL) {
367			cs++;
368			if (sl_find(charmaps, cs) == NULL)
369				sl_add(charmaps, cs);
370		}
371	}
372
373	/* add US-ASCII, if not yet added */
374	if (sl_find(charmaps, "US-ASCII") == NULL)
375		sl_add(charmaps, "US-ASCII");
376
377	/* sort the list */
378	qsort(charmaps->sl_str, charmaps->sl_cur, sizeof(char *), scmp);
379
380	/* print results */
381	for (i = 0; i < charmaps->sl_cur; i++) {
382		printf("%s\n", charmaps->sl_str[i]);
383	}
384}
385
386/*
387 * Retrieve sorted list of system locales (or user locales, if PATH_LOCALE
388 * environment variable is set)
389 */
390void
391init_locales_list(void)
392{
393	DIR *dirp;
394	struct dirent *dp;
395	size_t i;
396	int bogus;
397
398	/* why call this function twice ? */
399	if (locales != NULL)
400		return;
401
402	/* initialize StringList */
403	locales = sl_init();
404	if (locales == NULL)
405		err(1, "could not allocate memory");
406
407	/* get actual locales directory name */
408	if (__detect_path_locale() != 0)
409		err(1, "unable to find locales storage");
410
411	/* open locales directory */
412	dirp = opendir(_PathLocale);
413	if (dirp == NULL)
414		err(1, "could not open directory '%s'", _PathLocale);
415
416	/* scan directory and store its contents except "." and ".." */
417	while ((dp = readdir(dirp)) != NULL) {
418		if (*(dp->d_name) == '.')
419			continue;		/* exclude "." and ".." */
420		for (bogus = i = 0; i < NBOGUS; i++)
421			if (strncmp(dp->d_name, boguslocales[i],
422			    strlen(boguslocales[i])) == 0)
423				bogus = 1;
424		if (!bogus)
425			sl_add(locales, strdup(dp->d_name));
426	}
427	closedir(dirp);
428
429        /* make sure that 'POSIX' and 'C' locales are present in the list.
430	 * POSIX 1003.1-2001 requires presence of 'POSIX' name only here, but
431         * we also list 'C' for constistency
432         */
433	if (sl_find(locales, "POSIX") == NULL)
434		sl_add(locales, "POSIX");
435
436	if (sl_find(locales, "C") == NULL)
437		sl_add(locales, "C");
438
439	/* make output nicer, sort the list */
440	qsort(locales->sl_str, locales->sl_cur, sizeof(char *), scmp);
441}
442
443/*
444 * Show current locale status, depending on environment variables
445 */
446void
447showlocale(void)
448{
449	size_t	i;
450	const char *lang, *vval, *eval;
451
452	setlocale(LC_ALL, "");
453
454	lang = getenv("LANG");
455	if (lang == NULL) {
456		lang = "";
457	}
458	printf("LANG=%s\n", lang);
459	/* XXX: if LANG is null, then set it to "C" to get implied values? */
460
461	for (i = 0; i < NLCINFO; i++) {
462		vval = setlocale(lcinfo[i].id, NULL);
463		eval = getenv(lcinfo[i].name);
464		if (eval != NULL && !strcmp(eval, vval)
465				&& strcmp(lang, vval)) {
466			/*
467			 * Appropriate environment variable set, its value
468			 * is valid and not overriden by LC_ALL
469			 *
470			 * XXX: possible side effect: if both LANG and
471			 * overriden environment variable are set into same
472			 * value, then it'll be assumed as 'implied'
473			 */
474			printf("%s=%s\n", lcinfo[i].name, vval);
475		} else {
476			printf("%s=\"%s\"\n", lcinfo[i].name, vval);
477		}
478	}
479
480	vval = getenv("LC_ALL");
481	if (vval == NULL) {
482		vval = "";
483	}
484	printf("LC_ALL=%s\n", vval);
485}
486
487/*
488 * keyword value lookup helper (via localeconv())
489 */
490char *
491kwval_lconv(int id)
492{
493	struct lconv *lc;
494	char *rval;
495
496	rval = NULL;
497	lc = localeconv();
498	switch (id) {
499		case KW_GROUPING:
500			rval = lc->grouping;
501			break;
502		case KW_INT_CURR_SYMBOL:
503			rval = lc->int_curr_symbol;
504			break;
505		case KW_CURRENCY_SYMBOL:
506			rval = lc->currency_symbol;
507			break;
508		case KW_MON_DECIMAL_POINT:
509			rval = lc->mon_decimal_point;
510			break;
511		case KW_MON_THOUSANDS_SEP:
512			rval = lc->mon_thousands_sep;
513			break;
514		case KW_MON_GROUPING:
515			rval = lc->mon_grouping;
516			break;
517		case KW_POSITIVE_SIGN:
518			rval = lc->positive_sign;
519			break;
520		case KW_NEGATIVE_SIGN:
521			rval = lc->negative_sign;
522			break;
523		case KW_INT_FRAC_DIGITS:
524			rval = &(lc->int_frac_digits);
525			break;
526		case KW_FRAC_DIGITS:
527			rval = &(lc->frac_digits);
528			break;
529		case KW_P_CS_PRECEDES:
530			rval = &(lc->p_cs_precedes);
531			break;
532		case KW_P_SEP_BY_SPACE:
533			rval = &(lc->p_sep_by_space);
534			break;
535		case KW_N_CS_PRECEDES:
536			rval = &(lc->n_cs_precedes);
537			break;
538		case KW_N_SEP_BY_SPACE:
539			rval = &(lc->n_sep_by_space);
540			break;
541		case KW_P_SIGN_POSN:
542			rval = &(lc->p_sign_posn);
543			break;
544		case KW_N_SIGN_POSN:
545			rval = &(lc->n_sign_posn);
546			break;
547		case KW_INT_P_CS_PRECEDES:
548			rval = &(lc->int_p_cs_precedes);
549			break;
550		case KW_INT_P_SEP_BY_SPACE:
551			rval = &(lc->int_p_sep_by_space);
552			break;
553		case KW_INT_N_CS_PRECEDES:
554			rval = &(lc->int_n_cs_precedes);
555			break;
556		case KW_INT_N_SEP_BY_SPACE:
557			rval = &(lc->int_n_sep_by_space);
558			break;
559		case KW_INT_P_SIGN_POSN:
560			rval = &(lc->int_p_sign_posn);
561			break;
562		case KW_INT_N_SIGN_POSN:
563			rval = &(lc->int_n_sign_posn);
564			break;
565		default:
566			break;
567	}
568	return (rval);
569}
570
571/*
572 * keyword value and properties lookup
573 */
574int
575kwval_lookup(char *kwname, char **kwval, int *cat, int *isstr)
576{
577	int	rval;
578	size_t	i;
579
580	rval = 0;
581	for (i = 0; i < NKWINFO; i++) {
582		if (strcasecmp(kwname, kwinfo[i].name) == 0) {
583			rval = 1;
584			*cat = kwinfo[i].catid;
585			*isstr = kwinfo[i].isstr;
586			if (kwinfo[i].value_ref < KW_ZERO) {
587				*kwval = nl_langinfo(kwinfo[i].value_ref);
588			} else {
589				*kwval = kwval_lconv(kwinfo[i].value_ref);
590			}
591			break;
592		}
593	}
594
595	return (rval);
596}
597
598/*
599 * Show details about requested keyword according to '-k' and/or '-c'
600 * command line options specified.
601 */
602void
603showdetails(char *kw)
604{
605	int	isstr, cat, tmpval;
606	char	*kwval;
607
608	if (kwval_lookup(kw, &kwval, &cat, &isstr) == 0) {
609		/*
610		 * invalid keyword specified.
611		 * XXX: any actions?
612		 */
613		fprintf(stderr, "Unknown keyword: `%s'\n", kw);
614		return;
615	}
616
617	if (prt_categories) {
618		printf("%s\n", lookup_localecat(cat));
619	}
620
621	if (prt_keywords) {
622		if (isstr) {
623			printf("%s=\"%s\"\n", kw, kwval);
624		} else {
625			tmpval = (char) *kwval;
626			printf("%s=%d\n", kw, tmpval);
627		}
628	}
629
630	if (!prt_categories && !prt_keywords) {
631		if (isstr) {
632			printf("%s\n", kwval);
633		} else {
634			tmpval = (char) *kwval;
635			printf("%d\n", tmpval);
636		}
637	}
638}
639
640/*
641 * Convert locale category id into string
642 */
643const char *
644lookup_localecat(int cat)
645{
646	size_t	i;
647
648	for (i = 0; i < NLCINFO; i++)
649		if (lcinfo[i].id == cat) {
650			return (lcinfo[i].name);
651		}
652	return ("UNKNOWN");
653}
654
655/*
656 * Show list of keywords
657 */
658void
659showkeywordslist(char *substring)
660{
661	size_t	i;
662
663#define FMT "%-20s %-12s %-7s %-20s\n"
664
665	if (substring == NULL)
666		printf("List of available keywords\n\n");
667	else
668		printf("List of available keywords starting with '%s'\n\n",
669		    substring);
670	printf(FMT, "Keyword", "Category", "Type", "Comment");
671	printf("-------------------- ------------ ------- --------------------\n");
672	for (i = 0; i < NKWINFO; i++) {
673		if (substring != NULL) {
674			if (strncmp(kwinfo[i].name, substring,
675			    strlen(substring)) != 0)
676				continue;
677		}
678		printf(FMT,
679			kwinfo[i].name,
680			lookup_localecat(kwinfo[i].catid),
681			(kwinfo[i].isstr == 0) ? "number" : "string",
682			kwinfo[i].comment);
683	}
684}
685