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freebsd/usr.bin/locale/locale.c
Edwin Groothuis dec5a150d1 Add the comment "(FreeBSD only)" to the altmonth_x keywords 
MFC after:	1 week
2009-10-07 21:14:45 +00:00

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/*-
* 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.
*
* $FreeBSD$
*/
/*
* 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 <dirent.h>
#include <err.h>
#include <locale.h>
#include <langinfo.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stringlist.h>
#include <unistd.h>
#include "setlocale.h"
/* Local prototypes */
void init_locales_list(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(char *substring);
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 (FreeBSD only)" }, /* compat */
{ "thousep", 1, LC_NUMERIC, THOUSEP,
"Same as thousands_sep (FreeBSD 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, "" },
{ "altmon_1", 1, LC_TIME, ALTMON_1, "(FreeBSD only)" },
{ "altmon_2", 1, LC_TIME, ALTMON_2, "(FreeBSD only)" },
{ "altmon_3", 1, LC_TIME, ALTMON_3, "(FreeBSD only)" },
{ "altmon_4", 1, LC_TIME, ALTMON_4, "(FreeBSD only)" },
{ "altmon_5", 1, LC_TIME, ALTMON_5, "(FreeBSD only)" },
{ "altmon_6", 1, LC_TIME, ALTMON_6, "(FreeBSD only)" },
{ "altmon_7", 1, LC_TIME, ALTMON_7, "(FreeBSD only)" },
{ "altmon_8", 1, LC_TIME, ALTMON_8, "(FreeBSD only)" },
{ "altmon_9", 1, LC_TIME, ALTMON_9, "(FreeBSD only)" },
{ "altmon_10", 1, LC_TIME, ALTMON_10, "(FreeBSD only)" },
{ "altmon_11", 1, LC_TIME, ALTMON_11, "(FreeBSD only)" },
{ "altmon_12", 1, LC_TIME, ALTMON_12, "(FreeBSD only)" },
{ "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, "" },
{ "d_md_order", 1, LC_TIME, D_MD_ORDER,
"(FreeBSD only)" }, /* local */
{ "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]))
const char *boguslocales[] = { "UTF-8" };
#define NBOGUS (sizeof(boguslocales)/sizeof(boguslocales[0]))
int
main(int argc, char *argv[])
{
int ch;
int tmp;
while ((ch = getopt(argc, argv, "ackms:")) != -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(argv[tmp]);
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 -k list [prefix]\n"
" locale [ -ck ] keyword ...\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 scaning
* list of locales, spliting 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;
size_t i;
int bogus;
/* 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 */
if (__detect_path_locale() != 0)
err(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) {
if (*(dp->d_name) == '.')
continue; /* exclude "." and ".." */
for (bogus = i = 0; i < NBOGUS; i++)
if (strncmp(dp->d_name, boguslocales[i],
strlen(boguslocales[i])) == 0)
bogus = 1;
if (!bogus)
sl_add(locales, strdup(dp->d_name));
}
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 constistency
*/
if (sl_find(locales, "POSIX") == NULL)
sl_add(locales, "POSIX");
if (sl_find(locales, "C") == NULL)
sl_add(locales, "C");
/* make output nicer, sort the list */
qsort(locales->sl_str, locales->sl_cur, sizeof(char *), scmp);
}
/*
* 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 overriden by LC_ALL
*
* XXX: possible side effect: if both LANG and
* overriden 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?
*/
fprintf(stderr, "Unknown keyword: `%s'\n", kw);
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(char *substring)
{
size_t i;
#define FMT "%-20s %-12s %-7s %-20s\n"
if (substring == NULL)
printf("List of available keywords\n\n");
else
printf("List of available keywords starting with '%s'\n\n",
substring);
printf(FMT, "Keyword", "Category", "Type", "Comment");
printf("-------------------- ------------ ------- --------------------\n");
for (i = 0; i < NKWINFO; i++) {
if (substring != NULL) {
if (strncmp(kwinfo[i].name, substring,
strlen(substring)) != 0)
continue;
}
printf(FMT,
kwinfo[i].name,
lookup_localecat(kwinfo[i].catid),
(kwinfo[i].isstr == 0) ? "number" : "string",
kwinfo[i].comment);
}
}
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