702 lines
20 KiB
C
702 lines
20 KiB
C
/* Copyright (C) 1995-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>. */
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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 <errno.h>
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#include <fcntl.h>
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#include <libintl.h>
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#include <locale.h>
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#include <stdbool.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 <error.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#include "localedef.h"
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#include "charmap.h"
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#include "locfile.h"
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/* Undefine the following line in the production version. */
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/* #define NDEBUG 1 */
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#include <assert.h>
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/* List of copied locales. */
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struct copy_def_list_t *copy_list;
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/* If this is defined be POSIX conform. */
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int posix_conformance;
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/* If not zero force output even if warning were issued. */
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static int force_output;
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/* Prefix for output files. */
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const char *output_prefix;
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/* Name of the character map file. */
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static const char *charmap_file;
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/* Name of the locale definition file. */
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static const char *input_file;
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/* Name of the repertoire map file. */
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const char *repertoire_global;
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/* Name of the locale.alias file. */
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const char *alias_file;
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/* List of all locales. */
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static struct localedef_t *locales;
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/* If true don't add locale data to archive. */
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bool no_archive;
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/* If true add named locales to archive. */
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static bool add_to_archive;
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/* If true delete named locales from archive. */
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static bool delete_from_archive;
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/* If true replace archive content when adding. */
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static bool replace_archive;
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/* If true list archive content. */
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static bool list_archive;
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/* If true create hard links to other locales (default). */
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bool hard_links = true;
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/* Maximum number of retries when opening the locale archive. */
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int max_locarchive_open_retry = 10;
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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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#define OPT_POSIX 301
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#define OPT_QUIET 302
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#define OPT_PREFIX 304
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#define OPT_NO_ARCHIVE 305
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#define OPT_ADD_TO_ARCHIVE 306
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#define OPT_REPLACE 307
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#define OPT_DELETE_FROM_ARCHIVE 308
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#define OPT_LIST_ARCHIVE 309
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#define OPT_LITTLE_ENDIAN 400
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#define OPT_BIG_ENDIAN 401
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#define OPT_NO_WARN 402
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#define OPT_WARN 403
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#define OPT_NO_HARD_LINKS 404
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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_("Input Files:") },
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{ "charmap", 'f', N_("FILE"), 0,
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N_("Symbolic character names defined in FILE") },
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{ "inputfile", 'i', N_("FILE"), 0,
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N_("Source definitions are found in FILE") },
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{ "repertoire-map", 'u', N_("FILE"), 0,
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N_("FILE contains mapping from symbolic names to UCS4 values") },
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{ NULL, 0, NULL, 0, N_("Output control:") },
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{ "force", 'c', NULL, 0,
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N_("Create output even if warning messages were issued") },
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{ "no-hard-links", OPT_NO_HARD_LINKS, NULL, 0,
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N_("Do not create hard links between installed locales") },
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{ "prefix", OPT_PREFIX, N_("PATH"), 0, N_("Optional output file prefix") },
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{ "posix", OPT_POSIX, NULL, 0, N_("Strictly conform to POSIX") },
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{ "quiet", OPT_QUIET, NULL, 0,
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N_("Suppress warnings and information messages") },
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{ "verbose", 'v', NULL, 0, N_("Print more messages") },
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{ "no-warnings", OPT_NO_WARN, N_("<warnings>"), 0,
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N_("Comma-separated list of warnings to disable; "
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"supported warnings are: ascii, intcurrsym") },
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{ "warnings", OPT_WARN, N_("<warnings>"), 0,
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N_("Comma-separated list of warnings to enable; "
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"supported warnings are: ascii, intcurrsym") },
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{ NULL, 0, NULL, 0, N_("Archive control:") },
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{ "no-archive", OPT_NO_ARCHIVE, NULL, 0,
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N_("Don't add new data to archive") },
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{ "add-to-archive", OPT_ADD_TO_ARCHIVE, NULL, 0,
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N_("Add locales named by parameters to archive") },
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{ "replace", OPT_REPLACE, NULL, 0, N_("Replace existing archive content") },
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{ "delete-from-archive", OPT_DELETE_FROM_ARCHIVE, NULL, 0,
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N_("Remove locales named by parameters from archive") },
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{ "list-archive", OPT_LIST_ARCHIVE, NULL, 0, N_("List content of archive") },
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{ "alias-file", 'A', N_("FILE"), 0,
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N_("locale.alias file to consult when making archive")},
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{ "little-endian", OPT_LITTLE_ENDIAN, NULL, 0,
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N_("Generate little-endian output") },
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{ "big-endian", OPT_BIG_ENDIAN, NULL, 0,
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N_("Generate big-endian output") },
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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_("Compile locale specification");
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/* Strings for arguments in help texts. */
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static const char args_doc[] = N_("\
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NAME\n\
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[--add-to-archive|--delete-from-archive] FILE...\n\
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--list-archive [FILE]");
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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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/* Prototypes for local functions. */
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static void error_print (void);
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static char *construct_output_path (char *path);
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static char *normalize_codeset (const char *codeset, size_t name_len);
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int
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main (int argc, char *argv[])
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{
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char *output_path;
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int cannot_write_why;
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struct charmap_t *charmap;
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struct localedef_t global;
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int remaining;
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/* Set initial values for global variables. */
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copy_list = NULL;
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posix_conformance = getenv ("POSIXLY_CORRECT") != NULL;
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error_print_progname = error_print;
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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_MESSAGES, "");
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setlocale (LC_CTYPE, "");
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/* Initialize the message catalog. */
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textdomain (_libc_intl_domainname);
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/* Parse and process arguments. */
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argp_err_exit_status = 4;
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argp_parse (&argp, argc, argv, 0, &remaining, NULL);
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/* Handle a few special cases. */
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if (list_archive)
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show_archive_content (remaining > 1 ? argv[remaining] : NULL, verbose);
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if (add_to_archive)
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return add_locales_to_archive (argc - remaining, &argv[remaining],
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replace_archive);
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if (delete_from_archive)
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return delete_locales_from_archive (argc - remaining, &argv[remaining]);
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/* POSIX.2 requires to be verbose about missing characters in the
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character map. */
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verbose |= posix_conformance;
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if (argc - remaining != 1)
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{
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/* We need exactly one non-option parameter. */
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argp_help (&argp, stdout, ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR,
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program_invocation_short_name);
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exit (4);
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}
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/* The parameter describes the output path of the constructed files.
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If the described files cannot be written return a NULL pointer.
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We don't free output_path because we will exit. */
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output_path = construct_output_path (argv[remaining]);
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if (output_path == NULL && ! no_archive)
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error (4, errno, _("cannot create directory for output files"));
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cannot_write_why = errno;
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/* Now that the parameters are processed we have to reset the local
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ctype locale. (P1003.2 4.35.5.2) */
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setlocale (LC_CTYPE, "POSIX");
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/* Look whether the system really allows locale definitions. POSIX
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defines error code 3 for this situation so I think it must be
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a fatal error (see P1003.2 4.35.8). */
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if (sysconf (_SC_2_LOCALEDEF) < 0)
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record_error (3, 0, _("\
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FATAL: system does not define `_POSIX2_LOCALEDEF'"));
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/* Process charmap file. */
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charmap = charmap_read (charmap_file, verbose, 1, be_quiet, 1);
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/* Add the first entry in the locale list. */
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memset (&global, '\0', sizeof (struct localedef_t));
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global.name = input_file ?: "/dev/stdin";
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global.needed = ALL_LOCALES;
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locales = &global;
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/* Now read the locale file. */
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if (locfile_read (&global, charmap) != 0)
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record_error (4, errno, _("\
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cannot open locale definition file `%s'"), input_file);
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/* Perhaps we saw some `copy' instructions. */
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while (1)
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{
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struct localedef_t *runp = locales;
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while (runp != NULL && (runp->needed & runp->avail) == runp->needed)
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runp = runp->next;
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if (runp == NULL)
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/* Everything read. */
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break;
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if (locfile_read (runp, charmap) != 0)
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record_error (4, errno, _("\
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cannot open locale definition file `%s'"), runp->name);
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}
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/* Check the categories we processed in source form. */
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check_all_categories (locales, charmap);
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/* What we do next depends on the number of errors and warnings we
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have generated in processing the input files.
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* No errors: Write the output file.
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* Some warnings: Write the output file and exit with status 1 to
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indicate there may be problems using the output file e.g. missing
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data that makes it difficult to use
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* Errors: We don't write the output file and we exit with status 4
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to indicate no output files were written.
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The use of -c|--force writes the output file even if errors were
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seen. */
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if (recorded_error_count == 0 || force_output != 0)
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{
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if (cannot_write_why != 0)
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record_error (4, cannot_write_why, _("\
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cannot write output files to `%s'"), output_path ? : argv[remaining]);
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else
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write_all_categories (locales, charmap, argv[remaining], output_path);
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}
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else
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record_error (4, 0, _("\
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no output file produced because errors were issued"));
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/* This exit status is prescribed by POSIX.2 4.35.7. */
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exit (recorded_warning_count != 0);
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}
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/* Search warnings for matching warnings and if found enable those
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warnings if ENABLED is true, otherwise disable the warnings. */
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static void
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set_warnings (char *warnings, bool enabled)
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{
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char *tok = warnings;
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char *copy = (char *) malloc (strlen (warnings) + 1);
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char *save = copy;
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/* As we make a copy of the warnings list we remove all spaces from
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the warnings list to make the processing a more robust. We don't
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support spaces in a warning name. */
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do
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{
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while (isspace (*tok) != 0)
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tok++;
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}
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while ((*save++ = *tok++) != '\0');
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warnings = copy;
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/* Tokenize the input list of warnings to set, compare them to
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known warnings, and set the warning. We purposely ignore unknown
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warnings, and are thus forward compatible, users can attempt to
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disable whaterver new warnings they know about, but we will only
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disable those *we* known about. */
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while ((tok = strtok_r (warnings, ",", &save)) != NULL)
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{
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warnings = NULL;
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if (strcmp (tok, "ascii") == 0)
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warn_ascii = enabled;
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else if (strcmp (tok, "intcurrsym") == 0)
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warn_int_curr_symbol = enabled;
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}
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free (copy);
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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 OPT_QUIET:
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be_quiet = 1;
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break;
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case OPT_POSIX:
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posix_conformance = 1;
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break;
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case OPT_PREFIX:
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output_prefix = arg;
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break;
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case OPT_NO_ARCHIVE:
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no_archive = true;
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break;
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case OPT_ADD_TO_ARCHIVE:
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add_to_archive = true;
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break;
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case OPT_REPLACE:
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replace_archive = true;
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break;
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case OPT_DELETE_FROM_ARCHIVE:
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delete_from_archive = true;
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break;
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case OPT_LIST_ARCHIVE:
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list_archive = true;
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break;
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case OPT_LITTLE_ENDIAN:
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set_big_endian (false);
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break;
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case OPT_BIG_ENDIAN:
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set_big_endian (true);
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break;
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case OPT_NO_WARN:
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/* Disable the warnings. */
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set_warnings (arg, false);
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break;
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case OPT_WARN:
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/* Enable the warnings. */
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set_warnings (arg, true);
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break;
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case OPT_NO_HARD_LINKS:
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/* Do not hard link to other locales. */
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hard_links = false;
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break;
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case 'c':
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force_output = 1;
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break;
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case 'f':
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charmap_file = arg;
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break;
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case 'A':
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alias_file = arg;
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break;
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case 'i':
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input_file = arg;
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break;
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case 'u':
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repertoire_global = arg;
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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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char *cp;
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char *tp;
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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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tp = xasprintf (gettext ("\
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For bug reporting instructions, please see:\n\
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%s.\n"), REPORT_BUGS_TO);
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cp = xasprintf (gettext ("\
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System's directory for character maps : %s\n\
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repertoire maps: %s\n\
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locale path : %s\n\
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%s"),
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CHARMAP_PATH, REPERTOIREMAP_PATH, LOCALE_PATH, tp);
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free (tp);
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return cp;
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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, "localedef %s%s\n", PKGVERSION, 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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"), "2022");
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fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");
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}
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/* The address of this function will be assigned to the hook in the error
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functions. */
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static void
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error_print (void)
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{
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}
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/* The parameter to localedef describes the output path. If it does contain a
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'/' character it is a relative path. Otherwise it names the locale this
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definition is for. The returned path must be freed by the caller. */
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static char *
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construct_output_path (char *path)
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{
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char *result;
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if (strchr (path, '/') == NULL)
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{
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/* This is a system path. First examine whether the locale name
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contains a reference to the codeset. This should be
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normalized. */
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char *startp;
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char *endp = NULL;
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char *normal = NULL;
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startp = path;
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/* Either we have a '@' which starts a CEN name or '.' which starts the
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codeset specification. The CEN name starts with '@' and may also have
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a codeset specification, but we do not normalize the string after '@'.
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If we only find the codeset specification then we normalize only the codeset
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specification (but not anything after a subsequent '@'). */
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while (*startp != '\0' && *startp != '@' && *startp != '.')
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++startp;
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if (*startp == '.')
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{
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/* We found a codeset specification. Now find the end. */
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endp = ++startp;
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/* Stop at the first '@', and don't normalize anything past that. */
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while (*endp != '\0' && *endp != '@')
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++endp;
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if (endp > startp)
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normal = normalize_codeset (startp, endp - startp);
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}
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if (normal == NULL)
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result = xasprintf ("%s%s/%s/", output_prefix ?: "",
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COMPLOCALEDIR, path);
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else
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result = xasprintf ("%s%s/%.*s%s%s/",
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output_prefix ?: "", COMPLOCALEDIR,
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(int) (startp - path), path, normal, endp ?: "");
|
|
/* Free the allocated normalized codeset name. */
|
|
free (normal);
|
|
}
|
|
else
|
|
{
|
|
/* This is a user path. */
|
|
result = xasprintf ("%s/", path);
|
|
|
|
/* If the user specified an output path we cannot add the output
|
|
to the archive. */
|
|
no_archive = true;
|
|
}
|
|
|
|
errno = 0;
|
|
|
|
if (no_archive && euidaccess (result, W_OK) == -1)
|
|
{
|
|
/* Perhaps the directory does not exist now. Try to create it. */
|
|
if (errno == ENOENT)
|
|
{
|
|
errno = 0;
|
|
if (mkdir (result, 0777) < 0)
|
|
{
|
|
record_verbose (stderr,
|
|
_("cannot create output path \'%s\': %s"),
|
|
result, strerror (errno));
|
|
free (result);
|
|
return NULL;
|
|
}
|
|
}
|
|
else
|
|
record_verbose (stderr,
|
|
_("no write permission to output path \'%s\': %s"),
|
|
result, strerror (errno));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/* Normalize codeset name. There is no standard for the codeset names.
|
|
Normalization allows the user to use any of the common names e.g. UTF-8,
|
|
utf-8, utf8, UTF8 etc.
|
|
|
|
We normalize using the following rules:
|
|
- Remove all non-alpha-numeric characters
|
|
- Lowercase all characters.
|
|
- If there are only digits assume it's an ISO standard and prefix with 'iso'
|
|
|
|
We return the normalized string which needs to be freed by free. */
|
|
static char *
|
|
normalize_codeset (const char *codeset, size_t name_len)
|
|
{
|
|
int len = 0;
|
|
int only_digit = 1;
|
|
char *retval;
|
|
char *wp;
|
|
size_t cnt;
|
|
|
|
/* Compute the length of only the alpha-numeric characters. */
|
|
for (cnt = 0; cnt < name_len; ++cnt)
|
|
if (isalnum (codeset[cnt]))
|
|
{
|
|
++len;
|
|
|
|
if (isalpha (codeset[cnt]))
|
|
only_digit = 0;
|
|
}
|
|
|
|
/* If there were only digits we assume it's an ISO standard and we will
|
|
prefix with 'iso' so include space for that. We fill in the required
|
|
space from codeset up to the converted length. */
|
|
wp = retval = xasprintf ("%s%.*s", only_digit ? "iso" : "", len, codeset);
|
|
|
|
/* Skip "iso". */
|
|
if (only_digit)
|
|
wp += 3;
|
|
|
|
/* Lowercase all characters. */
|
|
for (cnt = 0; cnt < name_len; ++cnt)
|
|
if (isalpha (codeset[cnt]))
|
|
*wp++ = tolower (codeset[cnt]);
|
|
else if (isdigit (codeset[cnt]))
|
|
*wp++ = codeset[cnt];
|
|
|
|
/* Return allocated and converted name for caller to free. */
|
|
return retval;
|
|
}
|
|
|
|
|
|
struct localedef_t *
|
|
add_to_readlist (int category, const char *name, const char *repertoire_name,
|
|
int generate, struct localedef_t *copy_locale)
|
|
{
|
|
struct localedef_t *runp = locales;
|
|
|
|
while (runp != NULL && strcmp (name, runp->name) != 0)
|
|
runp = runp->next;
|
|
|
|
if (runp == NULL)
|
|
{
|
|
/* Add a new entry at the end. */
|
|
struct localedef_t *newp;
|
|
|
|
assert (generate == 1);
|
|
|
|
newp = xcalloc (1, sizeof (struct localedef_t));
|
|
newp->name = name;
|
|
newp->repertoire_name = repertoire_name;
|
|
|
|
if (locales == NULL)
|
|
runp = locales = newp;
|
|
else
|
|
{
|
|
runp = locales;
|
|
while (runp->next != NULL)
|
|
runp = runp->next;
|
|
runp = runp->next = newp;
|
|
}
|
|
}
|
|
|
|
if (generate
|
|
&& (runp->needed & (1 << category)) != 0
|
|
&& (runp->avail & (1 << category)) == 0)
|
|
record_error (5, 0, _("\
|
|
circular dependencies between locale definitions"));
|
|
|
|
if (copy_locale != NULL)
|
|
{
|
|
if (runp->categories[category].generic != NULL)
|
|
record_error (5, 0, _("\
|
|
cannot add already read locale `%s' a second time"), name);
|
|
else
|
|
runp->categories[category].generic =
|
|
copy_locale->categories[category].generic;
|
|
}
|
|
|
|
runp->needed |= 1 << category;
|
|
|
|
return runp;
|
|
}
|
|
|
|
|
|
struct localedef_t *
|
|
find_locale (int category, const char *name, const char *repertoire_name,
|
|
const struct charmap_t *charmap)
|
|
{
|
|
struct localedef_t *result;
|
|
|
|
/* Find the locale, but do not generate it since this would be a bug. */
|
|
result = add_to_readlist (category, name, repertoire_name, 0, NULL);
|
|
|
|
assert (result != NULL);
|
|
|
|
if ((result->avail & (1 << category)) == 0
|
|
&& locfile_read (result, charmap) != 0)
|
|
record_error (4, errno, _("\
|
|
cannot open locale definition file `%s'"), result->name);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
struct localedef_t *
|
|
load_locale (int category, const char *name, const char *repertoire_name,
|
|
const struct charmap_t *charmap, struct localedef_t *copy_locale)
|
|
{
|
|
struct localedef_t *result;
|
|
|
|
/* Generate the locale if it does not exist. */
|
|
result = add_to_readlist (category, name, repertoire_name, 1, copy_locale);
|
|
|
|
assert (result != NULL);
|
|
|
|
if ((result->avail & (1 << category)) == 0
|
|
&& locfile_read (result, charmap) != 0)
|
|
record_error (4, errno, _("\
|
|
cannot open locale definition file `%s'"), result->name);
|
|
|
|
return result;
|
|
}
|