549 lines
14 KiB
C
549 lines
14 KiB
C
/* Copyright (C) 1995,1996,1997,1998,1999,2000 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 <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 <mcheck.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 "error.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 give a lot more messages. */
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int verbose;
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/* If not zero suppress warnings and information messages. */
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int be_quiet;
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/* If not zero, produce old-style hash table instead of 3-level access tables. */
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int oldstyle_tables;
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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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/* List of all locales. */
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static struct localedef_t *locales;
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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 1
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#define OPT_QUIET 2
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#define OPT_OLDSTYLE 3
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#define OPT_PREFIX 4
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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', "FILE", 0,
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N_("Symbolic character names defined in FILE") },
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{ "inputfile", 'i', "FILE", 0, N_("Source definitions are found in FILE") },
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{ "repertoire-map", 'u', "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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{ "old-style", OPT_OLDSTYLE, NULL, 0, N_("Create old-style tables") },
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{ "prefix", OPT_PREFIX, "PATH", 0, N_("Optional output file prefix") },
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{ "posix", OPT_POSIX, NULL, 0, N_("Be strictly POSIX conform") },
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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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{ 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_("NAME");
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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 global functions. */
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extern void *xmalloc (size_t __n);
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/* Prototypes for local functions. */
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static void error_print (void);
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static const char *construct_output_path (char *path);
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static const 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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const 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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/* 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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output_path = construct_output_path (argv[remaining]);
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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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error (3, 0, _("FATAL: system does not define `_POSIX2_LOCALEDEF'"));
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/* Process charmap file. */
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charmap = charmap_read (charmap_file);
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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;
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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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error (4, errno, _("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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error (4, errno, _("cannot open locale definition file `%s'"),
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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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/* We are now able to write the data files. If warning were given we
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do it only if it is explicitly requested (--force). */
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if (error_message_count == 0 || force_output != 0)
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{
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if (cannot_write_why != 0)
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error (4, cannot_write_why, _("cannot write output files to `%s'"),
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output_path);
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else
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write_all_categories (locales, charmap, output_path);
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}
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else
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error (4, 0, _("no output file produced because warning were issued"));
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/* This exit status is prescribed by POSIX.2 4.35.7. */
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exit (error_message_count != 0);
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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_OLDSTYLE:
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oldstyle_tables = 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 '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 '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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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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asprintf (&cp, 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, gettext ("\
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Report bugs using the `glibcbug' script to <bugs@gnu.org>.\n"));
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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 (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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"), "2000");
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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
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contain a '/' character it is a relative path. Otherwise it names the
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locale this definition is for. */
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static const char *
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construct_output_path (char *path)
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{
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const char *normal = NULL;
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char *result;
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char *endp;
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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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size_t n;
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startp = path;
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/* We must be prepared for finding a CEN name or a location of
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the introducing `.' where it is not possible anymore. */
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while (*startp != '\0' && *startp != '@' && *startp != '.'
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&& *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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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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else
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/* This is to keep gcc quiet. */
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endp = NULL;
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/* We put an additional '\0' at the end of the string because at
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the end of the function we need another byte for the trailing
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'/'. */
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if (normal == NULL)
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n = asprintf (&result, "%s%s/%s%c",
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output_prefix ?: "", LOCALEDIR, path, '\0');
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else
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n = asprintf (&result, "%s%s/%.*s%s%s%c",
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output_prefix ?: "", LOCALEDIR,
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(int) (startp - path), path, normal, endp, '\0');
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endp = result + n - 1;
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}
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else
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{
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/* This is a user path. Please note the additional byte in the
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memory allocation. */
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size_t len = strlen (path) + 1;
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result = xmalloc (len + 1);
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endp = mempcpy (result, path, len) - 1;
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}
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errno = 0;
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if (euidaccess (result, W_OK) == -1)
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/* Perhaps the directory does not exist now. Try to create it. */
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if (errno == ENOENT)
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{
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errno = 0;
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mkdir (result, 0777);
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}
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*endp++ = '/';
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*endp = '\0';
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return result;
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}
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/* Normalize codeset name. There is no standard for the codeset
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names. Normalization allows the user to use any of the common
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names. */
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static const char *
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normalize_codeset (codeset, name_len)
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const char *codeset;
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size_t name_len;
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{
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int len = 0;
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int only_digit = 1;
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char *retval;
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char *wp;
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size_t cnt;
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for (cnt = 0; cnt < name_len; ++cnt)
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if (isalnum (codeset[cnt]))
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{
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++len;
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if (isalpha (codeset[cnt]))
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only_digit = 0;
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}
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retval = (char *) malloc ((only_digit ? 3 : 0) + len + 1);
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if (retval != NULL)
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{
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if (only_digit)
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wp = stpcpy (retval, "iso");
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else
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wp = retval;
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for (cnt = 0; cnt < name_len; ++cnt)
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if (isalpha (codeset[cnt]))
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*wp++ = tolower (codeset[cnt]);
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else if (isdigit (codeset[cnt]))
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*wp++ = codeset[cnt];
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*wp = '\0';
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}
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return (const char *) retval;
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}
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struct localedef_t *
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add_to_readlist (int locale, const char *name, const char *repertoire_name,
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int generate, struct localedef_t *copy_locale)
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{
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struct localedef_t *runp = locales;
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while (runp != NULL && strcmp (name, runp->name) != 0)
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runp = runp->next;
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if (runp == NULL)
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{
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/* Add a new entry at the end. */
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struct localedef_t *newp;
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assert (generate == 1);
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newp = xcalloc (1, sizeof (struct localedef_t));
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newp->name = name;
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newp->repertoire_name = repertoire_name;
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if (locales == NULL)
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runp = locales = newp;
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else
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{
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runp = locales;
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while (runp->next != NULL)
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runp = runp->next;
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runp = runp->next = newp;
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}
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}
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if (generate && (runp->needed & (1 << locale)) != 0)
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error (5, 0, _("circular dependencies between locale definitions"));
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if (copy_locale != NULL)
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{
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if (runp->categories[locale].generic != NULL)
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error (5, 0, _("cannot add already read locale `%s' a second time"),
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name);
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else
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runp->categories[locale].generic =
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copy_locale->categories[locale].generic;
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}
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runp->needed |= 1 << locale;
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return runp;
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}
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struct localedef_t *
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find_locale (int locale, const char *name, const char *repertoire_name,
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struct charmap_t *charmap)
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{
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struct localedef_t *result;
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/* Find the locale, but do not generate it since this would be a bug. */
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result = add_to_readlist (locale, name, repertoire_name, 0, NULL);
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assert (result != NULL);
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if ((result->avail & (1 << locale)) == 0
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&& locfile_read (result, charmap) != 0)
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error (4, errno, _("cannot open locale definition file `%s'"),
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result->name);
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return result;
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}
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struct localedef_t *
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load_locale (int locale, const char *name, const char *repertoire_name,
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struct charmap_t *charmap, struct localedef_t *copy_locale)
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{
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struct localedef_t *result;
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/* Generate the locale if it does not exist. */
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result = add_to_readlist (locale, name, repertoire_name, 1, copy_locale);
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assert (result != NULL);
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if ((result->avail & (1 << locale)) == 0
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&& locfile_read (result, charmap) != 0)
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error (4, errno, _("cannot open locale definition file `%s'"),
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result->name);
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return result;
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}
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static void
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turn_on_mcheck (void)
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{
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/* Enable `malloc' debugging. */
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mcheck (NULL);
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/* Use the following line for a more thorough but much slower testing. */
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/* mcheck_pedantic (NULL); */
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}
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void (*__malloc_initialize_hook) (void) = turn_on_mcheck;
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