OpenE2K
/
glibc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
glibc/locale/programs/localedef.c

494 lines
13 KiB
C
Raw Blame History

/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. 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 <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <libintl.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include "error.h"
#include "charset.h"
#include "locfile.h"
#include "../intl/loadinfo.h"
/* Undefine the following line in the production version. */
/* #define NDEBUG 1 */
#include <assert.h>
/* List of locale definition files which are used in `copy' instructions. */
struct copy_def_list_t
{
struct copy_def_list_t *next;
const char *name;
int mask;
struct localedef_t *locale;
struct
{
void *data;
size_t len;
} binary[6];
};
/* 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;
/* Long options. */
static const struct option long_options[] =
{
{ "charmap", required_argument, NULL, 'f' },
{ "code-set-name", required_argument, NULL, 'u' },
{ "help", no_argument, NULL, 'h' },
{ "force", no_argument, NULL, 'c' },
{ "inputfile", required_argument, NULL, 'i' },
{ "posix", no_argument, &posix_conformance, 1 },
{ "verbose", no_argument, &verbose, 1},
{ "version", no_argument, NULL, 'V' },
{ NULL, 0, NULL, 0 }
};
/* Prototypes for global functions. */
void *xmalloc (size_t __n);
/* Prototypes for local functions. */
static void usage (int status) __attribute__ ((noreturn));
static void error_print (void);
static const char *construct_output_path (char *path);
int
main (int argc, char *argv[])
{
int optchar;
int do_help = 0;
int do_version = 0;
int force_output = 0;
const char *charmap_file = NULL;
const char *input_file = NULL;
const char *ucs_csn = NULL;
const char *output_path;
int cannot_write_why;
struct charset_t *charset;
struct localedef_t *localedef;
struct copy_def_list_t *act_add_locdef;
/* Set initial values for global variables. */
copy_list = NULL;
posix_conformance = getenv ("POSIXLY_CORRECT") != NULL;
error_print_progname = error_print;
verbose = 0;
/* 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);
while ((optchar = getopt_long (argc, argv, "cf:hi:u:vV", long_options, NULL))
!= -1)
switch (optchar)
{
case '\0': /* Long option. */
break;
case 'c':
force_output = 1;
break;
case 'f':
charmap_file = optarg;
break;
case 'h':
do_help = 1;
break;
case 'i':
input_file = optarg;
break;
case 'u':
ucs_csn = optarg;
break;
case 'v':
verbose = 1;
break;
case 'V':
do_version = 1;
break;
default:
usage (4); /* A value >3 is forced by POSIX. */
break;
}
/* POSIX.2 requires to be verbose about missing characters in the
character map. */
verbose |= posix_conformance;
/* Version information is requested. */
if (do_version)
{
printf ("localedef (GNU %s) %s\n", PACKAGE, VERSION);
printf (_("\
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\
"), "1995, 1996, 1997");
printf (_("Written by %s.\n"), "Ulrich Drepper");
exit (0);
}
/* Help is requested. */
if (do_help)
/* Possible violation: POSIX.2 4.35.8 defines the return value 0 as
"No errors occurred and the locale(s) were successfully created."
But giving a other value than 0 does not make sense here. It
is perhaps not that important because POSIX does not specify the
-h option for localedef. */
usage (0);
if (argc - optind != 1)
/* We need exactly one non-option parameter. */
usage (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[optind]);
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)
error (3, 0, _("FATAL: system does not define `_POSIX2_LOCALEDEF'"));
/* Process charmap file. */
charset = charmap_read (charmap_file);
/* Now read the locale file. */
localedef = locfile_read (input_file, charset);
if (localedef->failed != 0)
error (4, errno, _("cannot open locale definition file `%s'"), input_file);
/* Perhaps we saw some `copy' instructions. Process the given list.
We use a very simple algorithm: we look up the list from the
beginning every time. */
do
{
int cat;
for (act_add_locdef = copy_list; act_add_locdef != NULL;
act_add_locdef = act_add_locdef->next)
{
for (cat = LC_CTYPE; cat <= LC_MESSAGES; ++cat)
if ((act_add_locdef->mask & (1 << cat)) != 0)
{
act_add_locdef->mask &= ~(1 << cat);
break;
}
if (cat <= LC_MESSAGES)
break;
}
if (act_add_locdef != NULL)
{
int avail = 0;
if (act_add_locdef->locale == NULL)
act_add_locdef->locale = locfile_read (act_add_locdef->name,
charset);
if (! act_add_locdef->locale->failed)
{
avail = act_add_locdef->locale->categories[cat].generic != NULL;
if (avail)
localedef->categories[cat].generic
= act_add_locdef->locale->categories[cat].generic;
}
if (! avail)
{
const char *locale_names[] = { "LC_COLLATE", "LC_CTYPE",
"LC_MONETARY", "LC_NUMERIC",
"LC_TIME", "LC_MESSAGES" };
char *fname;
int fd;
struct stat st;
asprintf (&fname, LOCALE_PATH "/%s/%s", act_add_locdef->name,
locale_names[cat]);
fd = open (fname, O_RDONLY);
if (fd == -1)
{
free (fname);
asprintf (&fname, LOCALE_PATH "/%s/%s/SYS_%s",
act_add_locdef->name, locale_names[cat],
locale_names[cat]);
fd = open (fname, O_RDONLY);
if (fd == -1)
error (5, 0, _("\
locale file `%s', used in `copy' statement, not found"),
act_add_locdef->name);
}
if (fstat (fd, &st) < 0)
error (5, errno, _("\
cannot `stat' locale file `%s'"),
fname);
localedef->len[cat] = st.st_size;
localedef->categories[cat].generic
= mmap (NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (localedef->categories[cat].generic == (void *) -1)
{
size_t left = st.st_size;
void *read_ptr;
localedef->categories[cat].generic
= xmalloc (st.st_size);
read_ptr = localedef->categories[cat].generic;
do
{
long int n;
n = read (fd, read_ptr, left);
if (n == -1)
error (5, errno, _("cannot read locale file `%s'"),
fname);
read_ptr += n;
left -= n;
}
while (left > 0);
}
close (fd);
free (fname);
localedef->binary |= 1 << cat;
}
}
}
while (act_add_locdef != NULL);
/* Check the categories we processed in source form. */
check_all_categories (localedef, charset);
/* 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)
error (4, cannot_write_why, _("cannot write output files to `%s'"),
output_path);
else
write_all_categories (localedef, charset, output_path);
}
else
error (4, 0, _("no output file produced because warning were issued"));
/* This exit status is prescribed by POSIX.2 4.35.7. */
exit (error_message_count != 0);
}
void
def_to_process (const char *name, int category)
{
struct copy_def_list_t *new, **rp;
for (rp = &copy_list; *rp != NULL; rp = &(*rp)->next)
if (strcmp (name, (*rp)->name) == 0)
break;
if (*rp == NULL)
{
size_t cnt;
*rp = (struct copy_def_list_t *) xmalloc (sizeof (**rp));
(*rp)->next = NULL;
(*rp)->name = name;
(*rp)->mask = 0;
(*rp)->locale = NULL;
for (cnt = 0; cnt < 6; ++cnt)
{
(*rp)->binary[cnt].data = NULL;
(*rp)->binary[cnt].len = 0;
}
}
new = *rp;
if ((new->mask & category) != 0)
/* We already have the information. This cannot happen. */
error (5, 0, _("\
category data requested more than once: should not happen"));
new->mask |= category;
}
/* Display usage information and exit. */
static void
usage (int status)
{
if (status != 0)
fprintf (stderr, _("Try `%s --help' for more information.\n"),
program_invocation_name);
else
{
printf (_("\
Usage: %s [OPTION]... name\n\
Mandatory arguments to long options are mandatory for short options too.\n\
-c, --force create output even if warning messages were issued\n\
-h, --help display this help and exit\n\
-f, --charmap=FILE symbolic character names defined in FILE\n\
-i, --inputfile=FILE source definitions are found in FILE\n\
-u, --code-set-name=NAME specify code set for mapping ISO 10646 elements\n\
-v, --verbose print more messages\n\
-V, --version output version information and exit\n\
--posix be strictly POSIX conform\n\
\n\
System's directory for character maps: %s\n\
locale files : %s\n"),
program_invocation_name, CHARMAP_PATH, LOCALE_PATH);
fputs (gettext ("\
Report bugs using the `glibcbug' script to <bugs@gnu.ai.mit.edu>.\n"),
stdout);
}
exit (status);
}
/* The address of this function will be assigned to the hook in the error
functions. */
static void
error_print ()
{
/* We don't want the program name to be printed in messages. Emacs'
compile.el does not like this. */
}
/* 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;
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, *endp;
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 != '+' && *startp != ',')
++startp;
if (*startp == '.')
{
/* We found a codeset specification. Now find the end. */
endp = ++startp;
while (*endp != '\0' && *endp != '@')
++endp;
if (endp > startp)
normal = _nl_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)
asprintf (&result, "%s/%s%c", LOCALEDIR, path, '\0');
else
asprintf (&result, "%s/%.*s%s%s%c", LOCALEDIR, startp - path, path,
normal, endp, '\0');
}
else
{
/* This is a user path. Please note the additional byte in the
memory allocation. */
result = xmalloc (strlen (path) + 2);
strcpy (result, path);
}
errno = 0;
if (euidaccess (result, W_OK) == -1)
/* Perhaps the directory does not exist now. Try to create it. */
if (errno == ENOENT)
{
errno = 0;
mkdir (result, 0777);
}
strcat (result, "/");
return result;
}
Reference in New Issue View Git Blame Copy Permalink