805 lines
20 KiB
C
805 lines
20 KiB
C
/* Implementation of the locale program according to POSIX 9945-2.
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Copyright (C) 1995-1997, 1999, 2000, 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1995.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <argp.h>
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#include <argz.h>
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#include <dirent.h>
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#include <errno.h>
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#include <error.h>
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#include <fcntl.h>
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#include <langinfo.h>
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#include <libintl.h>
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#include <limits.h>
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#include <locale.h>
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#include <search.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include "localeinfo.h"
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#include "charmap-dir.h"
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extern void *xmalloc (size_t __n);
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extern char *xstrdup (const char *__str);
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/* If set print the name of the category. */
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static int show_category_name;
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/* If set print the name of the item. */
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static int show_keyword_name;
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/* Print names of all available locales. */
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static int do_all;
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/* Print names of all available character maps. */
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static int do_charmaps = 0;
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/* Nonzero if verbose output is wanted. */
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static int verbose;
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/* Name and version of program. */
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static void print_version (FILE *stream, struct argp_state *state);
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void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version;
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/* Definitions of arguments for argp functions. */
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static const struct argp_option options[] =
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{
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{ NULL, 0, NULL, 0, N_("System information:") },
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{ "all-locales", 'a', NULL, OPTION_NO_USAGE,
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N_("Write names of available locales") },
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{ "charmaps", 'm', NULL, OPTION_NO_USAGE,
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N_("Write names of available charmaps") },
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{ NULL, 0, NULL, 0, N_("Modify output format:") },
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{ "category-name", 'c', NULL, 0, N_("Write names of selected categories") },
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{ "keyword-name", 'k', NULL, 0, N_("Write names of selected keywords") },
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{ "verbose", 'v', NULL, 0, N_("Print more information") },
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{ NULL, 0, NULL, 0, NULL }
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};
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/* Short description of program. */
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static const char doc[] = N_("Get locale-specific information.");
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/* Strings for arguments in help texts. */
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static const char args_doc[] = N_("NAME\n[-a|-m]");
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/* Prototype for option handler. */
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static error_t parse_opt (int key, char *arg, struct argp_state *state);
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/* Function to print some extra text in the help message. */
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static char *more_help (int key, const char *text, void *input);
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/* Data structure to communicate with argp functions. */
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static struct argp argp =
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{
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options, parse_opt, args_doc, doc, NULL, more_help
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};
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/* We don't have these constants defined because we don't use them. Give
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default values. */
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#define CTYPE_MB_CUR_MIN 0
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#define CTYPE_MB_CUR_MAX 0
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#define CTYPE_HASH_SIZE 0
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#define CTYPE_HASH_LAYERS 0
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#define CTYPE_CLASS 0
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#define CTYPE_TOUPPER_EB 0
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#define CTYPE_TOLOWER_EB 0
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#define CTYPE_TOUPPER_EL 0
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#define CTYPE_TOLOWER_EL 0
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/* Definition of the data structure which represents a category and its
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items. */
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struct category
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{
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int cat_id;
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const char *name;
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size_t number;
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struct cat_item
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{
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int item_id;
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const char *name;
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enum { std, opt } status;
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enum value_type value_type;
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int min;
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int max;
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} *item_desc;
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};
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/* Simple helper macro. */
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#define NELEMS(arr) ((sizeof (arr)) / (sizeof (arr[0])))
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/* For some tricky stuff. */
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#define NO_PAREN(Item, More...) Item, ## More
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/* We have all categories defined in `categories.def'. Now construct
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the description and data structure used for all categories. */
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#define DEFINE_ELEMENT(Item, More...) { Item, ## More },
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#define DEFINE_CATEGORY(category, name, items, postload) \
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static struct cat_item category##_desc[] = \
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{ \
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NO_PAREN items \
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};
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#include "categories.def"
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#undef DEFINE_CATEGORY
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static struct category category[] =
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{
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#define DEFINE_CATEGORY(category, name, items, postload) \
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[category] = { _NL_NUM_##category, name, NELEMS (category##_desc), \
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category##_desc },
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#include "categories.def"
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#undef DEFINE_CATEGORY
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};
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#define NCATEGORIES NELEMS (category)
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/* Automatically set variable. */
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extern const char *__progname;
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/* helper function for extended name handling. */
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extern void locale_special (const char *name, int show_category_name,
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int show_keyword_name);
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/* Prototypes for local functions. */
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static void write_locales (void);
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static void write_charmaps (void);
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static void show_locale_vars (void);
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static void show_info (const char *name);
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int
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main (int argc, char *argv[])
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{
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int remaining;
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/* Set initial values for global variables. */
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show_category_name = 0;
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show_keyword_name = 0;
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/* Set locale. Do not set LC_ALL because the other categories must
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not be affected (according to POSIX.2). */
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setlocale (LC_CTYPE, "");
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setlocale (LC_MESSAGES, "");
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/* Initialize the message catalog. */
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textdomain (PACKAGE);
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/* Parse and process arguments. */
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argp_parse (&argp, argc, argv, 0, &remaining, NULL);
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/* `-a' requests the names of all available locales. */
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if (do_all != 0)
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{
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setlocale (LC_COLLATE, "");
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write_locales ();
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exit (EXIT_SUCCESS);
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}
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/* `m' requests the names of all available charmaps. The names can be
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used for the -f argument to localedef(1). */
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if (do_charmaps != 0)
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{
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write_charmaps ();
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exit (EXIT_SUCCESS);
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}
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/* Specific information about the current locale are requested.
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Change to this locale now. */
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setlocale (LC_ALL, "");
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/* If no real argument is given we have to print the contents of the
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current locale definition variables. These are LANG and the LC_*. */
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if (remaining == argc && show_keyword_name == 0 && show_category_name == 0)
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{
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show_locale_vars ();
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exit (EXIT_SUCCESS);
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}
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/* Process all given names. */
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while (remaining < argc)
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show_info (argv[remaining++]);
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exit (EXIT_SUCCESS);
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}
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/* Handle program arguments. */
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static error_t
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parse_opt (int key, char *arg, struct argp_state *state)
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{
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switch (key)
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{
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case 'a':
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do_all = 1;
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break;
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case 'c':
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show_category_name = 1;
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break;
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case 'm':
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do_charmaps = 1;
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break;
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case 'k':
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show_keyword_name = 1;
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break;
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case 'v':
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verbose = 1;
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break;
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default:
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return ARGP_ERR_UNKNOWN;
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}
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return 0;
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}
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static char *
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more_help (int key, const char *text, void *input)
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{
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switch (key)
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{
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case ARGP_KEY_HELP_EXTRA:
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/* We print some extra information. */
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return xstrdup (gettext ("\
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Report bugs using the `glibcbug' script to <bugs@gnu.org>.\n"));
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default:
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break;
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}
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return (char *) text;
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}
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/* Print the version information. */
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static void
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print_version (FILE *stream, struct argp_state *state)
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{
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fprintf (stream, "locale (GNU %s) %s\n", PACKAGE, VERSION);
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fprintf (stream, gettext ("\
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Copyright (C) %s Free Software Foundation, Inc.\n\
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This is free software; see the source for copying conditions. There is NO\n\
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
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"), "2001");
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fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");
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}
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/* Simple action function which prints arguments as strings. */
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static void
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print_names (const void *nodep, VISIT value, int level)
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{
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if (value == postorder || value == leaf)
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puts (*(char **) nodep);
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}
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static int
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select_dirs (const struct dirent *dirent)
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{
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int result = 0;
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if (strcmp (dirent->d_name, ".") != 0 && strcmp (dirent->d_name, "..") != 0)
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{
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mode_t mode = 0;
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#ifdef _DIRENT_HAVE_D_TYPE
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if (dirent->d_type != DT_UNKNOWN && dirent->d_type != DT_LNK)
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mode = DTTOIF (dirent->d_type);
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else
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#endif
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{
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struct stat64 st;
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char buf[sizeof (LOCALEDIR) + strlen (dirent->d_name) + 1];
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stpcpy (stpcpy (stpcpy (buf, LOCALEDIR), "/"), dirent->d_name);
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if (stat64 (buf, &st) == 0)
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mode = st.st_mode;
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}
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result = S_ISDIR (mode);
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}
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return result;
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}
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/* Write the names of all available locales to stdout. We have some
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sources of the information: the contents of the locale directory
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and the locale.alias file. To avoid duplicates and print the
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result is a reasonable order we put all entries is a search tree
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and print them afterwards. */
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static void
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write_locales (void)
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{
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char linebuf[80];
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void *all_data = NULL;
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struct dirent **dirents;
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int ndirents;
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int cnt;
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char *alias_path;
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size_t alias_path_len;
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char *entry;
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int first_locale = 1;
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#define PUT(name) tsearch (name, &all_data, \
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(int (*) (const void *, const void *)) strcoll)
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/* Now read the locale.alias files. */
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if (argz_create_sep (LOCALE_ALIAS_PATH, ':', &alias_path, &alias_path_len))
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error (1, errno, gettext ("while preparing output"));
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entry = NULL;
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while ((entry = argz_next (alias_path, alias_path_len, entry)))
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{
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static const char aliasfile[] = "/locale.alias";
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FILE *fp;
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char full_name[strlen (entry) + sizeof aliasfile];
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stpcpy (stpcpy (full_name, entry), aliasfile);
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fp = fopen (full_name, "r");
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if (fp == NULL)
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/* Ignore non-existing files. */
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continue;
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while (! feof (fp))
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{
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/* It is a reasonable approach to use a fix buffer here
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because
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a) we are only interested in the first two fields
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b) these fields must be usable as file names and so must
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not be that long */
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char buf[BUFSIZ];
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char *alias;
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char *value;
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char *cp;
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if (fgets_unlocked (buf, BUFSIZ, fp) == NULL)
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/* EOF reached. */
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break;
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cp = buf;
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/* Ignore leading white space. */
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while (isspace (cp[0]) && cp[0] != '\n')
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++cp;
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/* A leading '#' signals a comment line. */
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if (cp[0] != '\0' && cp[0] != '#' && cp[0] != '\n')
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{
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alias = cp++;
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while (cp[0] != '\0' && !isspace (cp[0]))
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++cp;
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/* Terminate alias name. */
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if (cp[0] != '\0')
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*cp++ = '\0';
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/* Now look for the beginning of the value. */
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while (isspace (cp[0]))
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++cp;
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if (cp[0] != '\0')
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{
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value = cp++;
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while (cp[0] != '\0' && !isspace (cp[0]))
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++cp;
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/* Terminate value. */
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if (cp[0] == '\n')
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{
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/* This has to be done to make the following
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test for the end of line possible. We are
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looking for the terminating '\n' which do not
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overwrite here. */
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*cp++ = '\0';
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*cp = '\n';
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}
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else if (cp[0] != '\0')
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*cp++ = '\0';
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/* Add the alias. */
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if (! verbose)
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PUT (xstrdup (alias));
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}
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}
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/* Possibly not the whole line fits into the buffer.
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Ignore the rest of the line. */
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while (strchr (cp, '\n') == NULL)
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{
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cp = buf;
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if (fgets_unlocked (buf, BUFSIZ, fp) == NULL)
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/* Make sure the inner loop will be left. The outer
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loop will exit at the `feof' test. */
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*cp = '\n';
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}
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}
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fclose (fp);
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}
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memset (linebuf, '-', sizeof (linebuf) - 1);
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linebuf[sizeof (linebuf) - 1] = '\0';
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/* Now we can look for all files in the directory. */
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ndirents = scandir (LOCALEDIR, &dirents, select_dirs, alphasort);
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for (cnt = 0; cnt < ndirents; ++cnt)
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{
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/* Test whether at least the LC_CTYPE data is there. Some
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directories only contain translations. */
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char buf[sizeof (LOCALEDIR) + strlen (dirents[cnt]->d_name)
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+ sizeof "/LC_IDENTIFICATION"];
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char *enddir;
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struct stat64 st;
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stpcpy (enddir = stpcpy (stpcpy (stpcpy (buf, LOCALEDIR), "/"),
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dirents[cnt]->d_name),
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"/LC_IDENTIFICATION");
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if (stat64 (buf, &st) == 0 && S_ISREG (st.st_mode))
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{
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if (verbose)
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{
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/* Provide some nice output of all kinds of
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information. */
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int fd;
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if (! first_locale)
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putchar_unlocked ('\n');
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first_locale = 0;
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printf ("locale: %-15.15s directory: %.*s\n%s\n",
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dirents[cnt]->d_name, (int) (enddir - buf), buf,
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linebuf);
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fd = open64 (buf, O_RDONLY);
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if (fd != -1)
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{
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void *mapped = mmap64 (NULL, st.st_size, PROT_READ,
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MAP_SHARED, fd, 0);
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if (mapped != MAP_FAILED)
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{
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/* Read the information from the file. */
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struct
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{
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unsigned int magic;
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unsigned int nstrings;
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unsigned int strindex[0];
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} *filedata = mapped;
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if (filedata->magic == LIMAGIC (LC_IDENTIFICATION)
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&& (sizeof *filedata
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+ (filedata->nstrings
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* sizeof (unsigned int))
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<= (size_t) st.st_size))
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{
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const char *str;
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#define HANDLE(idx, name) \
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str = ((char *) mapped \
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+ filedata->strindex[_NL_ITEM_INDEX (_NL_IDENTIFICATION_##idx)]); \
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if (*str != '\0') \
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printf ("%9s | %s\n", name, str)
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HANDLE (TITLE, "title");
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HANDLE (SOURCE, "source");
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HANDLE (ADDRESS, "address");
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HANDLE (CONTACT, "contact");
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HANDLE (EMAIL, "email");
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HANDLE (TEL, "telephone");
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HANDLE (FAX, "fax");
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HANDLE (LANGUAGE, "language");
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HANDLE (TERRITORY, "territory");
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HANDLE (AUDIENCE, "audience");
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HANDLE (APPLICATION, "application");
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HANDLE (ABBREVIATION, "abbreviation");
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HANDLE (REVISION, "revision");
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HANDLE (DATE, "date");
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}
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munmap (mapped, st.st_size);
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}
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close (fd);
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/* Now try to get the charset information. */
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strcpy (enddir, "/LC_CTYPE");
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fd = open64 (buf, O_RDONLY);
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if (fd != -1 && fstat64 (fd, &st) >= 0
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&& ((mapped = mmap64 (NULL, st.st_size, PROT_READ,
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MAP_SHARED, fd, 0))
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!= MAP_FAILED))
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{
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struct
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{
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unsigned int magic;
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unsigned int nstrings;
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unsigned int strindex[0];
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} *filedata = mapped;
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if (filedata->magic == LIMAGIC (LC_CTYPE)
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&& (sizeof *filedata
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+ (filedata->nstrings
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* sizeof (unsigned int))
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<= (size_t) st.st_size))
|
|
{
|
|
const char *str;
|
|
|
|
str = ((char *) mapped
|
|
+ filedata->strindex[_NL_ITEM_INDEX (_NL_CTYPE_CODESET_NAME)]);
|
|
if (*str != '\0')
|
|
printf (" codeset | %s\n", str);
|
|
}
|
|
|
|
munmap (mapped, st.st_size);
|
|
}
|
|
|
|
if (fd != -1)
|
|
close (fd);
|
|
}
|
|
}
|
|
else
|
|
/* If the verbose format is not selected we simply
|
|
collect the names. */
|
|
PUT (xstrdup (dirents[cnt]->d_name));
|
|
}
|
|
}
|
|
if (ndirents > 0)
|
|
free (dirents);
|
|
|
|
if (! verbose)
|
|
{
|
|
/* `POSIX' locale is always available (POSIX.2 4.34.3). */
|
|
PUT ("POSIX");
|
|
/* And so is the "C" locale. */
|
|
PUT ("C");
|
|
|
|
twalk (all_data, print_names);
|
|
}
|
|
}
|
|
|
|
|
|
/* Write the names of all available character maps to stdout. */
|
|
static void
|
|
write_charmaps (void)
|
|
{
|
|
void *all_data = NULL;
|
|
CHARMAP_DIR *dir;
|
|
const char *dirent;
|
|
|
|
/* Look for all files in the charmap directory. */
|
|
dir = charmap_opendir (CHARMAP_PATH);
|
|
if (dir == NULL)
|
|
return;
|
|
|
|
while ((dirent = charmap_readdir (dir)) != NULL)
|
|
{
|
|
char **aliases;
|
|
char **p;
|
|
|
|
PUT (xstrdup (dirent));
|
|
|
|
aliases = charmap_aliases (CHARMAP_PATH, dirent);
|
|
|
|
#if 0
|
|
/* Add the code_set_name and the aliases. */
|
|
for (p = aliases; *p; p++)
|
|
PUT (xstrdup (*p));
|
|
#else
|
|
/* Add the code_set_name only. Most aliases are obsolete. */
|
|
p = aliases;
|
|
if (*p)
|
|
PUT (xstrdup (*p));
|
|
#endif
|
|
|
|
charmap_free_aliases (aliases);
|
|
}
|
|
|
|
charmap_closedir (dir);
|
|
|
|
twalk (all_data, print_names);
|
|
}
|
|
|
|
|
|
/* We have to show the contents of the environments determining the
|
|
locale. */
|
|
static void
|
|
show_locale_vars (void)
|
|
{
|
|
size_t cat_no;
|
|
const char *lcall = getenv ("LC_ALL");
|
|
const char *lang = getenv ("LANG") ? : "POSIX";
|
|
|
|
auto void get_source (const char *name);
|
|
|
|
void get_source (const char *name)
|
|
{
|
|
char *val = getenv (name);
|
|
|
|
if ((lcall ?: "")[0] != '\0' || val == NULL)
|
|
printf ("%s=\"%s\"\n", name, (lcall ?: "")[0] ? lcall : lang);
|
|
else
|
|
printf ("%s=%s\n", name, val);
|
|
}
|
|
|
|
/* LANG has to be the first value. */
|
|
printf ("LANG=%s\n", lang);
|
|
|
|
/* Now all categories in an unspecified order. */
|
|
for (cat_no = 0; cat_no < NCATEGORIES; ++cat_no)
|
|
if (cat_no != LC_ALL)
|
|
get_source (category[cat_no].name);
|
|
|
|
/* The last is the LC_ALL value. */
|
|
printf ("LC_ALL=%s\n", lcall ? : "");
|
|
}
|
|
|
|
|
|
/* Show the information request for NAME. */
|
|
static void
|
|
show_info (const char *name)
|
|
{
|
|
size_t cat_no;
|
|
|
|
auto void print_item (struct cat_item *item);
|
|
|
|
void print_item (struct cat_item *item)
|
|
{
|
|
switch (item->value_type)
|
|
{
|
|
case string:
|
|
if (show_keyword_name)
|
|
printf ("%s=\"", item->name);
|
|
fputs (nl_langinfo (item->item_id) ? : "", stdout);
|
|
if (show_keyword_name)
|
|
putchar ('"');
|
|
putchar ('\n');
|
|
break;
|
|
case stringarray:
|
|
{
|
|
int cnt;
|
|
const char *val;
|
|
|
|
if (show_keyword_name)
|
|
printf ("%s=\"", item->name);
|
|
|
|
for (cnt = 0; cnt < item->max - 1; ++cnt)
|
|
{
|
|
val = nl_langinfo (item->item_id + cnt);
|
|
if (val != NULL)
|
|
fputs (val, stdout);
|
|
putchar (';');
|
|
}
|
|
|
|
val = nl_langinfo (item->item_id + cnt);
|
|
if (val != NULL)
|
|
fputs (val, stdout);
|
|
|
|
if (show_keyword_name)
|
|
putchar ('"');
|
|
putchar ('\n');
|
|
}
|
|
break;
|
|
case stringlist:
|
|
{
|
|
int first = 1;
|
|
const char *val = nl_langinfo (item->item_id) ? : "";
|
|
int cnt;
|
|
|
|
if (show_keyword_name)
|
|
printf ("%s=", item->name);
|
|
|
|
for (cnt = 0; cnt < item->max && *val != '\0'; ++cnt)
|
|
{
|
|
printf ("%s%s%s%s", first ? "" : ";",
|
|
show_keyword_name ? "\"" : "", val,
|
|
show_keyword_name ? "\"" : "");
|
|
val = strchr (val, '\0') + 1;
|
|
first = 0;
|
|
}
|
|
putchar ('\n');
|
|
}
|
|
break;
|
|
case byte:
|
|
{
|
|
const char *val = nl_langinfo (item->item_id);
|
|
|
|
if (show_keyword_name)
|
|
printf ("%s=", item->name);
|
|
|
|
if (val != NULL)
|
|
printf ("%d", *val == CHAR_MAX ? -1 : *val);
|
|
putchar ('\n');
|
|
}
|
|
break;
|
|
case bytearray:
|
|
{
|
|
const char *val = nl_langinfo (item->item_id);
|
|
int cnt = val ? strlen (val) : 0;
|
|
|
|
if (show_keyword_name)
|
|
printf ("%s=", item->name);
|
|
|
|
while (cnt > 1)
|
|
{
|
|
printf ("%d;", *val == CHAR_MAX ? -1 : *val);
|
|
--cnt;
|
|
++val;
|
|
}
|
|
|
|
printf ("%d\n", cnt == 0 || *val == CHAR_MAX ? -1 : *val);
|
|
}
|
|
break;
|
|
case word:
|
|
{
|
|
unsigned int val =
|
|
(unsigned int) (unsigned long int) nl_langinfo (item->item_id);
|
|
if (show_keyword_name)
|
|
printf ("%s=", item->name);
|
|
|
|
printf ("%d\n", val);
|
|
}
|
|
break;
|
|
case wstring:
|
|
case wstringarray:
|
|
case wstringlist:
|
|
/* We don't print wide character information since the same
|
|
information is available in a multibyte string. */
|
|
default:
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
for (cat_no = 0; cat_no < NCATEGORIES; ++cat_no)
|
|
if (cat_no != LC_ALL)
|
|
{
|
|
size_t item_no;
|
|
|
|
if (strcmp (name, category[cat_no].name) == 0)
|
|
/* Print the whole category. */
|
|
{
|
|
if (show_category_name != 0)
|
|
puts (category[cat_no].name);
|
|
|
|
for (item_no = 0; item_no < category[cat_no].number; ++item_no)
|
|
print_item (&category[cat_no].item_desc[item_no]);
|
|
|
|
return;
|
|
}
|
|
|
|
for (item_no = 0; item_no < category[cat_no].number; ++item_no)
|
|
if (strcmp (name, category[cat_no].item_desc[item_no].name) == 0)
|
|
{
|
|
if (show_category_name != 0)
|
|
puts (category[cat_no].name);
|
|
|
|
print_item (&category[cat_no].item_desc[item_no]);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* The name is not a standard one.
|
|
For testing and perhaps advanced use allow some more symbols. */
|
|
locale_special (name, show_category_name, show_keyword_name);
|
|
}
|