glibc/locale/programs/localedef.c

634 lines
17 KiB
C

/* Copyright (C) 1995-2004, 2005, 2006, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1995.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <argp.h>
#include <errno.h>
#include <fcntl.h>
#include <libintl.h>
#include <locale.h>
#include <mcheck.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <error.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include "localedef.h"
#include "charmap.h"
#include "locfile.h"
/* Undefine the following line in the production version. */
/* #define NDEBUG 1 */
#include <assert.h>
/* List of copied locales. */
struct copy_def_list_t *copy_list;
/* If this is defined be POSIX conform. */
int posix_conformance;
/* If not zero give a lot more messages. */
int verbose;
/* If not zero suppress warnings and information messages. */
int be_quiet;
/* If not zero, produce old-style hash table instead of 3-level access
tables. */
int oldstyle_tables;
/* If not zero force output even if warning were issued. */
static int force_output;
/* Prefix for output files. */
const char *output_prefix;
/* Name of the character map file. */
static const char *charmap_file;
/* Name of the locale definition file. */
static const char *input_file;
/* Name of the repertoire map file. */
const char *repertoire_global;
/* Name of the locale.alias file. */
const char *alias_file;
/* List of all locales. */
static struct localedef_t *locales;
/* If true don't add locale data to archive. */
bool no_archive;
/* If true add named locales to archive. */
static bool add_to_archive;
/* If true delete named locales from archive. */
static bool delete_from_archive;
/* If true replace archive content when adding. */
static bool replace_archive;
/* If true list archive content. */
static bool list_archive;
/* Maximum number of retries when opening the locale archive. */
int max_locarchive_open_retry = 10;
/* Name and version of program. */
static void print_version (FILE *stream, struct argp_state *state);
void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version;
#define OPT_POSIX 301
#define OPT_QUIET 302
#define OPT_OLDSTYLE 303
#define OPT_PREFIX 304
#define OPT_NO_ARCHIVE 305
#define OPT_ADD_TO_ARCHIVE 306
#define OPT_REPLACE 307
#define OPT_DELETE_FROM_ARCHIVE 308
#define OPT_LIST_ARCHIVE 309
/* Definitions of arguments for argp functions. */
static const struct argp_option options[] =
{
{ NULL, 0, NULL, 0, N_("Input Files:") },
{ "charmap", 'f', "FILE", 0,
N_("Symbolic character names defined in FILE") },
{ "inputfile", 'i', "FILE", 0, N_("Source definitions are found in FILE") },
{ "repertoire-map", 'u', "FILE", 0,
N_("FILE contains mapping from symbolic names to UCS4 values") },
{ NULL, 0, NULL, 0, N_("Output control:") },
{ "force", 'c', NULL, 0,
N_("Create output even if warning messages were issued") },
{ "old-style", OPT_OLDSTYLE, NULL, 0, N_("Create old-style tables") },
{ "prefix", OPT_PREFIX, "PATH", 0, N_("Optional output file prefix") },
{ "posix", OPT_POSIX, NULL, 0, N_("Be strictly POSIX conform") },
{ "quiet", OPT_QUIET, NULL, 0,
N_("Suppress warnings and information messages") },
{ "verbose", 'v', NULL, 0, N_("Print more messages") },
{ NULL, 0, NULL, 0, N_("Archive control:") },
{ "no-archive", OPT_NO_ARCHIVE, NULL, 0,
N_("Don't add new data to archive") },
{ "add-to-archive", OPT_ADD_TO_ARCHIVE, NULL, 0,
N_("Add locales named by parameters to archive") },
{ "replace", OPT_REPLACE, NULL, 0, N_("Replace existing archive content") },
{ "delete-from-archive", OPT_DELETE_FROM_ARCHIVE, NULL, 0,
N_("Remove locales named by parameters from archive") },
{ "list-archive", OPT_LIST_ARCHIVE, NULL, 0, N_("List content of archive") },
{ "alias-file", 'A', "FILE", 0,
N_("locale.alias file to consult when making archive")},
{ NULL, 0, NULL, 0, NULL }
};
/* Short description of program. */
static const char doc[] = N_("Compile locale specification");
/* Strings for arguments in help texts. */
static const char args_doc[] = N_("\
NAME\n\
[--add-to-archive|--delete-from-archive] FILE...\n\
--list-archive [FILE]");
/* Prototype for option handler. */
static error_t parse_opt (int key, char *arg, struct argp_state *state);
/* Function to print some extra text in the help message. */
static char *more_help (int key, const char *text, void *input);
/* Data structure to communicate with argp functions. */
static struct argp argp =
{
options, parse_opt, args_doc, doc, NULL, more_help
};
/* Prototypes for global functions. */
extern void *xmalloc (size_t __n);
/* Prototypes for local functions. */
static void error_print (void);
static const char *construct_output_path (char *path);
static const char *normalize_codeset (const char *codeset, size_t name_len);
int
main (int argc, char *argv[])
{
const char *output_path;
int cannot_write_why;
struct charmap_t *charmap;
struct localedef_t global;
int remaining;
/* Set initial values for global variables. */
copy_list = NULL;
posix_conformance = getenv ("POSIXLY_CORRECT") != NULL;
error_print_progname = error_print;
/* Set locale. Do not set LC_ALL because the other categories must
not be affected (according to POSIX.2). */
setlocale (LC_MESSAGES, "");
setlocale (LC_CTYPE, "");
/* Initialize the message catalog. */
textdomain (_libc_intl_domainname);
/* Parse and process arguments. */
argp_err_exit_status = 4;
argp_parse (&argp, argc, argv, 0, &remaining, NULL);
/* Handle a few special cases. */
if (list_archive)
show_archive_content (verbose);
if (add_to_archive)
return add_locales_to_archive (argc - remaining, &argv[remaining],
replace_archive);
if (delete_from_archive)
return delete_locales_from_archive (argc - remaining, &argv[remaining]);
/* POSIX.2 requires to be verbose about missing characters in the
character map. */
verbose |= posix_conformance;
if (argc - remaining != 1)
{
/* We need exactly one non-option parameter. */
argp_help (&argp, stdout, ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR,
program_invocation_short_name);
exit (4);
}
/* The parameter describes the output path of the constructed files.
If the described files cannot be written return a NULL pointer. */
output_path = construct_output_path (argv[remaining]);
if (output_path == NULL && ! no_archive)
error (4, errno, _("cannot create directory for output files"));
cannot_write_why = errno;
/* Now that the parameters are processed we have to reset the local
ctype locale. (P1003.2 4.35.5.2) */
setlocale (LC_CTYPE, "POSIX");
/* Look whether the system really allows locale definitions. POSIX
defines error code 3 for this situation so I think it must be
a fatal error (see P1003.2 4.35.8). */
if (sysconf (_SC_2_LOCALEDEF) < 0)
WITH_CUR_LOCALE (error (3, 0, _("\
FATAL: system does not define `_POSIX2_LOCALEDEF'")));
/* Process charmap file. */
charmap = charmap_read (charmap_file, verbose, 1, be_quiet, 1);
/* Add the first entry in the locale list. */
memset (&global, '\0', sizeof (struct localedef_t));
global.name = input_file ?: "/dev/stdin";
global.needed = ALL_LOCALES;
locales = &global;
/* Now read the locale file. */
if (locfile_read (&global, charmap) != 0)
WITH_CUR_LOCALE (error (4, errno, _("\
cannot open locale definition file `%s'"), input_file));
/* Perhaps we saw some `copy' instructions. */
while (1)
{
struct localedef_t *runp = locales;
while (runp != NULL && (runp->needed & runp->avail) == runp->needed)
runp = runp->next;
if (runp == NULL)
/* Everything read. */
break;
if (locfile_read (runp, charmap) != 0)
WITH_CUR_LOCALE (error (4, errno, _("\
cannot open locale definition file `%s'"), runp->name));
}
/* Check the categories we processed in source form. */
check_all_categories (locales, charmap);
/* We are now able to write the data files. If warning were given we
do it only if it is explicitly requested (--force). */
if (error_message_count == 0 || force_output != 0)
{
if (cannot_write_why != 0)
WITH_CUR_LOCALE (error (4, cannot_write_why, _("\
cannot write output files to `%s'"), output_path));
else
write_all_categories (locales, charmap, argv[remaining], output_path);
}
else
WITH_CUR_LOCALE (error (4, 0, _("\
no output file produced because warnings were issued")));
/* This exit status is prescribed by POSIX.2 4.35.7. */
exit (error_message_count != 0);
}
/* Handle program arguments. */
static error_t
parse_opt (int key, char *arg, struct argp_state *state)
{
switch (key)
{
case OPT_QUIET:
be_quiet = 1;
break;
case OPT_POSIX:
posix_conformance = 1;
break;
case OPT_OLDSTYLE:
oldstyle_tables = 1;
break;
case OPT_PREFIX:
output_prefix = arg;
break;
case OPT_NO_ARCHIVE:
no_archive = true;
break;
case OPT_ADD_TO_ARCHIVE:
add_to_archive = true;
break;
case OPT_REPLACE:
replace_archive = true;
break;
case OPT_DELETE_FROM_ARCHIVE:
delete_from_archive = true;
break;
case OPT_LIST_ARCHIVE:
list_archive = true;
break;
case 'c':
force_output = 1;
break;
case 'f':
charmap_file = arg;
break;
case 'A':
alias_file = arg;
break;
case 'i':
input_file = arg;
break;
case 'u':
repertoire_global = arg;
break;
case 'v':
verbose = 1;
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static char *
more_help (int key, const char *text, void *input)
{
char *cp;
switch (key)
{
case ARGP_KEY_HELP_EXTRA:
/* We print some extra information. */
if (asprintf (&cp, gettext ("\
System's directory for character maps : %s\n\
repertoire maps: %s\n\
locale path : %s\n\
%s"),
CHARMAP_PATH, REPERTOIREMAP_PATH, LOCALE_PATH, gettext ("\
For bug reporting instructions, please see:\n\
<http://www.gnu.org/software/libc/bugs.html>.\n")) < 0)
return NULL;
return cp;
default:
break;
}
return (char *) text;
}
/* Print the version information. */
static void
print_version (FILE *stream, struct argp_state *state)
{
fprintf (stream, "localedef (GNU %s) %s\n", PACKAGE, VERSION);
fprintf (stream, gettext ("\
Copyright (C) %s Free Software Foundation, Inc.\n\
This is free software; see the source for copying conditions. There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
"), "2007");
fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");
}
/* The address of this function will be assigned to the hook in the error
functions. */
static void
error_print (void)
{
}
/* The parameter to localedef describes the output path. If it does
contain a '/' character it is a relative path. Otherwise it names the
locale this definition is for. */
static const char *
construct_output_path (char *path)
{
const char *normal = NULL;
char *result;
char *endp;
if (strchr (path, '/') == NULL)
{
/* This is a system path. First examine whether the locale name
contains a reference to the codeset. This should be
normalized. */
char *startp;
size_t n;
startp = path;
/* We must be prepared for finding a CEN name or a location of
the introducing `.' where it is not possible anymore. */
while (*startp != '\0' && *startp != '@' && *startp != '.')
++startp;
if (*startp == '.')
{
/* We found a codeset specification. Now find the end. */
endp = ++startp;
while (*endp != '\0' && *endp != '@')
++endp;
if (endp > startp)
normal = normalize_codeset (startp, endp - startp);
}
else
/* This is to keep gcc quiet. */
endp = NULL;
/* We put an additional '\0' at the end of the string because at
the end of the function we need another byte for the trailing
'/'. */
if (normal == NULL)
n = asprintf (&result, "%s%s/%s%c",
output_prefix ?: "", LOCALEDIR, path, '\0');
else
n = asprintf (&result, "%s%s/%.*s%s%s%c",
output_prefix ?: "", LOCALEDIR,
(int) (startp - path), path, normal, endp, '\0');
if (n < 0)
return NULL;
endp = result + n - 1;
}
else
{
/* This is a user path. Please note the additional byte in the
memory allocation. */
size_t len = strlen (path) + 1;
result = xmalloc (len + 1);
endp = mempcpy (result, path, len) - 1;
/* 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)
return NULL;
}
*endp++ = '/';
*endp = '\0';
return result;
}
/* Normalize codeset name. There is no standard for the codeset
names. Normalization allows the user to use any of the common
names. */
static const char *
normalize_codeset (codeset, name_len)
const char *codeset;
size_t name_len;
{
int len = 0;
int only_digit = 1;
char *retval;
char *wp;
size_t cnt;
for (cnt = 0; cnt < name_len; ++cnt)
if (isalnum (codeset[cnt]))
{
++len;
if (isalpha (codeset[cnt]))
only_digit = 0;
}
retval = (char *) malloc ((only_digit ? 3 : 0) + len + 1);
if (retval != NULL)
{
if (only_digit)
wp = stpcpy (retval, "iso");
else
wp = retval;
for (cnt = 0; cnt < name_len; ++cnt)
if (isalpha (codeset[cnt]))
*wp++ = tolower (codeset[cnt]);
else if (isdigit (codeset[cnt]))
*wp++ = codeset[cnt];
*wp = '\0';
}
return (const char *) 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)
WITH_CUR_LOCALE (error (5, 0, _("\
circular dependencies between locale definitions")));
if (copy_locale != NULL)
{
if (runp->categories[category].generic != NULL)
WITH_CUR_LOCALE (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)
WITH_CUR_LOCALE (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)
WITH_CUR_LOCALE (error (4, errno, _("\
cannot open locale definition file `%s'"), result->name));
return result;
}
static void
turn_on_mcheck (void)
{
/* Enable `malloc' debugging. */
mcheck (NULL);
/* Use the following line for a more thorough but much slower testing. */
/* mcheck_pedantic (NULL); */
}
void (*__malloc_initialize_hook) (void) = turn_on_mcheck;