/*      $NetBSD: locale.c,v 1.9 2020/04/28 22:29:32 ginsbach Exp $      */

/*-
 * Copyright (c) 2002, 2003 Alexey Zelkin <phantom@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * FreeBSD: src/usr.bin/locale/locale.c,v 1.10 2003/06/26 11:05:56 phantom Exp
 */

#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: locale.c,v 1.9 2020/04/28 22:29:32 ginsbach Exp $");
#endif /* LIBC_SCCS and not lint */

/*
 * XXX: implement missing era_* (LC_TIME) keywords (require libc &
 *      nl_langinfo(3) extensions)
 *
 * XXX: correctly handle reserved 'charmap' keyword and '-m' option (require
 *      localedef(1) implementation).  Currently it's handled via
 *      nl_langinfo(CODESET).
 */

#include <sys/types.h>
#include <assert.h>
#include <dirent.h>
#include <err.h>
#include <locale.h>
#include <langinfo.h>
#include <limits.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stringlist.h>
#include <unistd.h>

#include "citrus_namespace.h"
#include "citrus_region.h"
#include "citrus_lookup.h"
#include "setlocale_local.h"

/* Local prototypes */
void    init_locales_list(void);
void    init_locales_list_alias(void);
void    list_charmaps(void);
void    list_locales(void);
const char *lookup_localecat(int);
char    *kwval_lconv(int);
int     kwval_lookup(char *, char **, int *, int *);
void    showdetails(char *);
void    showkeywordslist(void);
void    showlocale(void);
void    usage(void);

/* Global variables */
static StringList *locales = NULL;

int     all_locales = 0;
int     all_charmaps = 0;
int     prt_categories = 0;
int     prt_keywords = 0;
int     more_params = 0;

struct _lcinfo {
        const char      *name;
        int             id;
} lcinfo [] = {
        { "LC_CTYPE",           LC_CTYPE },
        { "LC_COLLATE",         LC_COLLATE },
        { "LC_TIME",            LC_TIME },
        { "LC_NUMERIC",         LC_NUMERIC },
        { "LC_MONETARY",        LC_MONETARY },
        { "LC_MESSAGES",        LC_MESSAGES }
};
#define NLCINFO (sizeof(lcinfo)/sizeof(lcinfo[0]))

/* ids for values not referenced by nl_langinfo() */
#define KW_ZERO                 10000
#define KW_GROUPING             (KW_ZERO+1)
#define KW_INT_CURR_SYMBOL      (KW_ZERO+2)
#define KW_CURRENCY_SYMBOL      (KW_ZERO+3)
#define KW_MON_DECIMAL_POINT    (KW_ZERO+4)
#define KW_MON_THOUSANDS_SEP    (KW_ZERO+5)
#define KW_MON_GROUPING         (KW_ZERO+6)
#define KW_POSITIVE_SIGN        (KW_ZERO+7)
#define KW_NEGATIVE_SIGN        (KW_ZERO+8)
#define KW_INT_FRAC_DIGITS      (KW_ZERO+9)
#define KW_FRAC_DIGITS          (KW_ZERO+10)
#define KW_P_CS_PRECEDES        (KW_ZERO+11)
#define KW_P_SEP_BY_SPACE       (KW_ZERO+12)
#define KW_N_CS_PRECEDES        (KW_ZERO+13)
#define KW_N_SEP_BY_SPACE       (KW_ZERO+14)
#define KW_P_SIGN_POSN          (KW_ZERO+15)
#define KW_N_SIGN_POSN          (KW_ZERO+16)
#define KW_INT_P_CS_PRECEDES    (KW_ZERO+17)
#define KW_INT_P_SEP_BY_SPACE   (KW_ZERO+18)
#define KW_INT_N_CS_PRECEDES    (KW_ZERO+19)
#define KW_INT_N_SEP_BY_SPACE   (KW_ZERO+20)
#define KW_INT_P_SIGN_POSN      (KW_ZERO+21)
#define KW_INT_N_SIGN_POSN      (KW_ZERO+22)

struct _kwinfo {
        const char      *name;
        int             isstr;          /* true - string, false - number */
        int             catid;          /* LC_* */
        int             value_ref;
        const char      *comment;
} kwinfo [] = {
        { "charmap",            1, LC_CTYPE,    CODESET, "" },  /* hack */

        { "decimal_point",      1, LC_NUMERIC,  RADIXCHAR, "" },
        { "thousands_sep",      1, LC_NUMERIC,  THOUSEP, "" },
        { "grouping",           1, LC_NUMERIC,  KW_GROUPING, "" },
        { "radixchar",          1, LC_NUMERIC,  RADIXCHAR,
          "Same as decimal_point (BSD only)" },                 /* compat */
        { "thousep",            1, LC_NUMERIC,  THOUSEP,
          "Same as thousands_sep (BSD only)" },                 /* compat */

        { "int_curr_symbol",    1, LC_MONETARY, KW_INT_CURR_SYMBOL, "" },
        { "currency_symbol",    1, LC_MONETARY, KW_CURRENCY_SYMBOL, "" },
        { "mon_decimal_point",  1, LC_MONETARY, KW_MON_DECIMAL_POINT, "" },
        { "mon_thousands_sep",  1, LC_MONETARY, KW_MON_THOUSANDS_SEP, "" },
        { "mon_grouping",       1, LC_MONETARY, KW_MON_GROUPING, "" },
        { "positive_sign",      1, LC_MONETARY, KW_POSITIVE_SIGN, "" },
        { "negative_sign",      1, LC_MONETARY, KW_NEGATIVE_SIGN, "" },

        { "int_frac_digits",    0, LC_MONETARY, KW_INT_FRAC_DIGITS, "" },
        { "frac_digits",        0, LC_MONETARY, KW_FRAC_DIGITS, "" },
        { "p_cs_precedes",      0, LC_MONETARY, KW_P_CS_PRECEDES, "" },
        { "p_sep_by_space",     0, LC_MONETARY, KW_P_SEP_BY_SPACE, "" },
        { "n_cs_precedes",      0, LC_MONETARY, KW_N_CS_PRECEDES, "" },
        { "n_sep_by_space",     0, LC_MONETARY, KW_N_SEP_BY_SPACE, "" },
        { "p_sign_posn",        0, LC_MONETARY, KW_P_SIGN_POSN, "" },
        { "n_sign_posn",        0, LC_MONETARY, KW_N_SIGN_POSN, "" },
        { "int_p_cs_precedes",  0, LC_MONETARY, KW_INT_P_CS_PRECEDES, "" },
        { "int_p_sep_by_space", 0, LC_MONETARY, KW_INT_P_SEP_BY_SPACE, "" },
        { "int_n_cs_precedes",  0, LC_MONETARY, KW_INT_N_CS_PRECEDES, "" },
        { "int_n_sep_by_space", 0, LC_MONETARY, KW_INT_N_SEP_BY_SPACE, "" },
        { "int_p_sign_posn",    0, LC_MONETARY, KW_INT_P_SIGN_POSN, "" },
        { "int_n_sign_posn",    0, LC_MONETARY, KW_INT_N_SIGN_POSN, "" },

        { "d_t_fmt",            1, LC_TIME,     D_T_FMT, "" },
        { "d_fmt",              1, LC_TIME,     D_FMT, "" },
        { "t_fmt",              1, LC_TIME,     T_FMT, "" },
        { "am_str",             1, LC_TIME,     AM_STR, "" },
        { "pm_str",             1, LC_TIME,     PM_STR, "" },
        { "t_fmt_ampm",         1, LC_TIME,     T_FMT_AMPM, "" },
        { "day_1",              1, LC_TIME,     DAY_1, "" },
        { "day_2",              1, LC_TIME,     DAY_2, "" },
        { "day_3",              1, LC_TIME,     DAY_3, "" },
        { "day_4",              1, LC_TIME,     DAY_4, "" },
        { "day_5",              1, LC_TIME,     DAY_5, "" },
        { "day_6",              1, LC_TIME,     DAY_6, "" },
        { "day_7",              1, LC_TIME,     DAY_7, "" },
        { "abday_1",            1, LC_TIME,     ABDAY_1, "" },
        { "abday_2",            1, LC_TIME,     ABDAY_2, "" },
        { "abday_3",            1, LC_TIME,     ABDAY_3, "" },
        { "abday_4",            1, LC_TIME,     ABDAY_4, "" },
        { "abday_5",            1, LC_TIME,     ABDAY_5, "" },
        { "abday_6",            1, LC_TIME,     ABDAY_6, "" },
        { "abday_7",            1, LC_TIME,     ABDAY_7, "" },
        { "mon_1",              1, LC_TIME,     MON_1, "" },
        { "mon_2",              1, LC_TIME,     MON_2, "" },
        { "mon_3",              1, LC_TIME,     MON_3, "" },
        { "mon_4",              1, LC_TIME,     MON_4, "" },
        { "mon_5",              1, LC_TIME,     MON_5, "" },
        { "mon_6",              1, LC_TIME,     MON_6, "" },
        { "mon_7",              1, LC_TIME,     MON_7, "" },
        { "mon_8",              1, LC_TIME,     MON_8, "" },
        { "mon_9",              1, LC_TIME,     MON_9, "" },
        { "mon_10",             1, LC_TIME,     MON_10, "" },
        { "mon_11",             1, LC_TIME,     MON_11, "" },
        { "mon_12",             1, LC_TIME,     MON_12, "" },
        { "abmon_1",            1, LC_TIME,     ABMON_1, "" },
        { "abmon_2",            1, LC_TIME,     ABMON_2, "" },
        { "abmon_3",            1, LC_TIME,     ABMON_3, "" },
        { "abmon_4",            1, LC_TIME,     ABMON_4, "" },
        { "abmon_5",            1, LC_TIME,     ABMON_5, "" },
        { "abmon_6",            1, LC_TIME,     ABMON_6, "" },
        { "abmon_7",            1, LC_TIME,     ABMON_7, "" },
        { "abmon_8",            1, LC_TIME,     ABMON_8, "" },
        { "abmon_9",            1, LC_TIME,     ABMON_9, "" },
        { "abmon_10",           1, LC_TIME,     ABMON_10, "" },
        { "abmon_11",           1, LC_TIME,     ABMON_11, "" },
        { "abmon_12",           1, LC_TIME,     ABMON_12, "" },
        { "era",                1, LC_TIME,     ERA, "(unavailable)" },
        { "era_d_fmt",          1, LC_TIME,     ERA_D_FMT, "(unavailable)" },
        { "era_d_t_fmt",        1, LC_TIME,     ERA_D_T_FMT, "(unavailable)" },
        { "era_t_fmt",          1, LC_TIME,     ERA_T_FMT, "(unavailable)" },
        { "alt_digits",         1, LC_TIME,     ALT_DIGITS, "" },

        { "yesexpr",            1, LC_MESSAGES, YESEXPR, "" },
        { "noexpr",             1, LC_MESSAGES, NOEXPR, "" },
        { "yesstr",             1, LC_MESSAGES, YESSTR,
          "(POSIX legacy)" },                                   /* compat */
        { "nostr",              1, LC_MESSAGES, NOSTR,
          "(POSIX legacy)" }                                    /* compat */

};
#define NKWINFO (sizeof(kwinfo)/sizeof(kwinfo[0]))

int
main(int argc, char *argv[])
{
        int     ch;
        int     tmp;

        while ((ch = getopt(argc, argv, "ackm")) != -1) {
                switch (ch) {
                case 'a':
                        all_locales = 1;
                        break;
                case 'c':
                        prt_categories = 1;
                        break;
                case 'k':
                        prt_keywords = 1;
                        break;
                case 'm':
                        all_charmaps = 1;
                        break;
                default:
                        usage();
                }
        }
        argc -= optind;
        argv += optind;

        /* validate arguments */
        if (all_locales && all_charmaps)
                usage();
        if ((all_locales || all_charmaps) && argc > 0)
                usage();
        if ((all_locales || all_charmaps) && (prt_categories || prt_keywords))
                usage();
        if ((prt_categories || prt_keywords) && argc <= 0)
                usage();

        /* process '-a' */
        if (all_locales) {
                list_locales();
                exit(0);
        }

        /* process '-m' */
        if (all_charmaps) {
                list_charmaps();
                exit(0);
        }

        /* check for special case '-k list' */
        tmp = 0;
        if (prt_keywords && argc > 0)
                while (tmp < argc)
                        if (strcasecmp(argv[tmp++], "list") == 0) {
                                showkeywordslist();
                                exit(0);
                        }

        /* process '-c' and/or '-k' */
        if (prt_categories || prt_keywords || argc > 0) {
                setlocale(LC_ALL, "");
                while (argc > 0) {
                        showdetails(*argv);
                        argv++;
                        argc--;
                }
                exit(0);
        }

        /* no arguments, show current locale state */
        showlocale();

        return (0);
}

void
usage(void)
{
        printf("usage: locale [ -a | -m ]\n"
               "       locale [ -ck ] name ...\n");
        exit(1);
}

/*
 * Output information about all available locales
 *
 * XXX actually output of this function does not guarantee that locale
 *     is really available to application, since it can be broken or
 *     inconsistent thus setlocale() will fail.  Maybe add '-V' function to
 *     also validate these locales?
 */
void
list_locales(void)
{
        size_t i;

        init_locales_list();
        for (i = 0; i < locales->sl_cur; i++) {
                printf("%s\n", locales->sl_str[i]);
        }
}

/*
 * qsort() helper function
 */
static int
scmp(const void *s1, const void *s2)
{
        return strcmp(*(const char **)s1, *(const char **)s2);
}

/*
 * Output information about all available charmaps
 *
 * XXX this function is doing a task in hackish way, i.e. by scanning
 *     list of locales, splitting their codeset part and building list of
 *     them.
 */
void
list_charmaps(void)
{
        size_t i;
        char *s, *cs;
        StringList *charmaps;

        /* initialize StringList */
        charmaps = sl_init();
        if (charmaps == NULL)
                err(1, "could not allocate memory");

        /* fetch locales list */
        init_locales_list();

        /* split codesets and build their list */
        for (i = 0; i < locales->sl_cur; i++) {
                s = locales->sl_str[i];
                if ((cs = strchr(s, '.')) != NULL) {
                        cs++;
                        if (sl_find(charmaps, cs) == NULL)
                                sl_add(charmaps, cs);
                }
        }

        /* add US-ASCII, if not yet added */
        if (sl_find(charmaps, "US-ASCII") == NULL)
                sl_add(charmaps, "US-ASCII");

        /* sort the list */
        qsort(charmaps->sl_str, charmaps->sl_cur, sizeof(char *), scmp);

        /* print results */
        for (i = 0; i < charmaps->sl_cur; i++) {
                printf("%s\n", charmaps->sl_str[i]);
        }
}

/*
 * Retrieve sorted list of system locales (or user locales, if PATH_LOCALE
 * environment variable is set)
 */
void
init_locales_list(void)
{
        DIR *dirp;
        struct dirent *dp;
        char *s;

        /* why call this function twice ? */
        if (locales != NULL)
                return;

        /* initialize StringList */
        locales = sl_init();
        if (locales == NULL)
                err(1, "could not allocate memory");

        /* get actual locales directory name */
        setlocale(LC_CTYPE, "C");
        if (_PathLocale == NULL)
                errx(1, "unable to find locales storage");

        /* open locales directory */
        dirp = opendir(_PathLocale);
        if (dirp == NULL)
                err(1, "could not open directory '%s'", _PathLocale);

        /* scan directory and store its contents except "." and ".." */
        while ((dp = readdir(dirp)) != NULL) {
                /* exclude "." and "..", _LOCALE_ALIAS_NAME */
                if ((dp->d_name[0] != '.' || (dp->d_name[1] != '\0' &&
                    (dp->d_name[1] != '.' ||  dp->d_name[2] != '\0'))) &&
                    strcmp(_LOCALE_ALIAS_NAME, dp->d_name) != 0) {
                        s = strdup(dp->d_name);
                        if (s == NULL)
                                err(1, "could not allocate memory");
                        sl_add(locales, s);
                }
        }
        closedir(dirp);

        /* make sure that 'POSIX' and 'C' locales are present in the list.
         * POSIX 1003.1-2001 requires presence of 'POSIX' name only here, but
         * we also list 'C' for consistency
         */
        if (sl_find(locales, "POSIX") == NULL)
                sl_add(locales, "POSIX");

        if (sl_find(locales, "C") == NULL)
                sl_add(locales, "C");

        init_locales_list_alias();

        /* make output nicer, sort the list */
        qsort(locales->sl_str, locales->sl_cur, sizeof(char *), scmp);
}

void
init_locales_list_alias(void)
{
        char aliaspath[PATH_MAX];
        struct _lookup *hlookup;
        struct _region key, dat;
        size_t n;
        char *s, *t;

        _DIAGASSERT(locales != NULL);
        _DIAGASSERT(_PathLocale != NULL);

        (void)snprintf(aliaspath, sizeof(aliaspath),
                "%s/" _LOCALE_ALIAS_NAME, _PathLocale);

        if (_lookup_seq_open(&hlookup, aliaspath,
            _LOOKUP_CASE_SENSITIVE) == 0) {
                while (_lookup_seq_next(hlookup, &key, &dat) == 0) {
                        n = _region_size((const struct _region *)&key);
                        s = _region_head((const struct _region *)&key);
                        for (t = s; n > 0 && *s!= '/'; --n, ++s);
                        n = (size_t)(s - t);
                        s = malloc(n + 1);
                        if (s == NULL)
                                err(1, "could not allocate memory");
                        memcpy(s, t, n);
                        s[n] = '\0';
                        if (sl_find(locales, s) == NULL)
                                sl_add(locales, s);
                        else
                                free(s);
                }
                _lookup_seq_close(hlookup);
        }
}

/*
 * Show current locale status, depending on environment variables
 */
void
showlocale(void)
{
        size_t  i;
        const char *lang, *vval, *eval;

        setlocale(LC_ALL, "");

        lang = getenv("LANG");
        if (lang == NULL) {
                lang = "";
        }
        printf("LANG=\"%s\"\n", lang);
        /* XXX: if LANG is null, then set it to "C" to get implied values? */

        for (i = 0; i < NLCINFO; i++) {
                vval = setlocale(lcinfo[i].id, NULL);
                eval = getenv(lcinfo[i].name);
                if (eval != NULL && !strcmp(eval, vval)
                                && strcmp(lang, vval)) {
                        /*
                         * Appropriate environment variable set, its value
                         * is valid and not overridden by LC_ALL
                         *
                         * XXX: possible side effect: if both LANG and
                         * overridden environment variable are set into same
                         * value, then it'll be assumed as 'implied'
                         */
                        printf("%s=\"%s\"\n", lcinfo[i].name, vval);
                } else {
                        printf("%s=\"%s\"\n", lcinfo[i].name, vval);
                }
        }

        vval = getenv("LC_ALL");
        if (vval == NULL) {
                vval = "";
        }
        printf("LC_ALL=\"%s\"\n", vval);
}

/*
 * keyword value lookup helper (via localeconv())
 */
char *
kwval_lconv(int id)
{
        struct lconv *lc;
        char *rval;

        rval = NULL;
        lc = localeconv();
        switch (id) {
                case KW_GROUPING:
                        rval = lc->grouping;
                        break;
                case KW_INT_CURR_SYMBOL:
                        rval = lc->int_curr_symbol;
                        break;
                case KW_CURRENCY_SYMBOL:
                        rval = lc->currency_symbol;
                        break;
                case KW_MON_DECIMAL_POINT:
                        rval = lc->mon_decimal_point;
                        break;
                case KW_MON_THOUSANDS_SEP:
                        rval = lc->mon_thousands_sep;
                        break;
                case KW_MON_GROUPING:
                        rval = lc->mon_grouping;
                        break;
                case KW_POSITIVE_SIGN:
                        rval = lc->positive_sign;
                        break;
                case KW_NEGATIVE_SIGN:
                        rval = lc->negative_sign;
                        break;
                case KW_INT_FRAC_DIGITS:
                        rval = &(lc->int_frac_digits);
                        break;
                case KW_FRAC_DIGITS:
                        rval = &(lc->frac_digits);
                        break;
                case KW_P_CS_PRECEDES:
                        rval = &(lc->p_cs_precedes);
                        break;
                case KW_P_SEP_BY_SPACE:
                        rval = &(lc->p_sep_by_space);
                        break;
                case KW_N_CS_PRECEDES:
                        rval = &(lc->n_cs_precedes);
                        break;
                case KW_N_SEP_BY_SPACE:
                        rval = &(lc->n_sep_by_space);
                        break;
                case KW_P_SIGN_POSN:
                        rval = &(lc->p_sign_posn);
                        break;
                case KW_N_SIGN_POSN:
                        rval = &(lc->n_sign_posn);
                        break;
                case KW_INT_P_CS_PRECEDES:
                        rval = &(lc->int_p_cs_precedes);
                        break;
                case KW_INT_P_SEP_BY_SPACE:
                        rval = &(lc->int_p_sep_by_space);
                        break;
                case KW_INT_N_CS_PRECEDES:
                        rval = &(lc->int_n_cs_precedes);
                        break;
                case KW_INT_N_SEP_BY_SPACE:
                        rval = &(lc->int_n_sep_by_space);
                        break;
                case KW_INT_P_SIGN_POSN:
                        rval = &(lc->int_p_sign_posn);
                        break;
                case KW_INT_N_SIGN_POSN:
                        rval = &(lc->int_n_sign_posn);
                        break;
                default:
                        break;
        }
        return (rval);
}

/*
 * keyword value and properties lookup
 */
int
kwval_lookup(char *kwname, char **kwval, int *cat, int *isstr)
{
        int     rval;
        size_t  i;

        rval = 0;
        for (i = 0; i < NKWINFO; i++) {
                if (strcasecmp(kwname, kwinfo[i].name) == 0) {
                        rval = 1;
                        *cat = kwinfo[i].catid;
                        *isstr = kwinfo[i].isstr;
                        if (kwinfo[i].value_ref < KW_ZERO) {
                                *kwval = nl_langinfo(kwinfo[i].value_ref);
                        } else {
                                *kwval = kwval_lconv(kwinfo[i].value_ref);
                        }
                        break;
                }
        }

        return (rval);
}

/*
 * Show details about requested keyword according to '-k' and/or '-c'
 * command line options specified.
 */
void
showdetails(char *kw)
{
        int     isstr, cat, tmpval;
        char    *kwval;

        if (kwval_lookup(kw, &kwval, &cat, &isstr) == 0) {
                /*
                 * invalid keyword specified.
                 * XXX: any actions?
                 */
                return;
        }

        if (prt_categories) {
                printf("%s\n", lookup_localecat(cat));
        }

        if (prt_keywords) {
                if (isstr) {
                        printf("%s=\"%s\"\n", kw, kwval);
                } else {
                        tmpval = (char) *kwval;
                        printf("%s=%d\n", kw, tmpval);
                }
        }

        if (!prt_categories && !prt_keywords) {
                if (isstr) {
                        printf("%s\n", kwval);
                } else {
                        tmpval = (char) *kwval;
                        printf("%d\n", tmpval);
                }
        }
}

/*
 * Convert locale category id into string
 */
const char *
lookup_localecat(int cat)
{
        size_t  i;

        for (i = 0; i < NLCINFO; i++)
                if (lcinfo[i].id == cat) {
                        return (lcinfo[i].name);
                }
        return ("UNKNOWN");
}

/*
 * Show list of keywords
 */
void
showkeywordslist(void)
{
        size_t  i;

#define FMT "%-20s %-12s %-7s %-20s\n"

        printf("List of available keywords\n\n");
        printf(FMT, "Keyword", "Category", "Type", "Comment");
        printf("-------------------- ------------ ------- --------------------\n");
        for (i = 0; i < NKWINFO; i++) {
                printf(FMT,
                        kwinfo[i].name,
                        lookup_localecat(kwinfo[i].catid),
                        (kwinfo[i].isstr == 0) ? "number" : "string",
                        kwinfo[i].comment);
        }
}