422 lines
12 KiB
C
422 lines
12 KiB
C
/* Copyright (C) 1995-1999, 2000-2004 Free Software Foundation, Inc.
|
||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
|
||
|
||
This program 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, or (at your option)
|
||
any later version.
|
||
|
||
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
|
||
Library General Public License for more details.
|
||
|
||
You should have received a copy of the GNU Library 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. */
|
||
|
||
/* Tell glibc's <string.h> to provide a prototype for stpcpy().
|
||
This must come before <config.h> because <config.h> may include
|
||
<features.h>, and once <features.h> has been included, it's too late. */
|
||
#ifndef _GNU_SOURCE
|
||
# define _GNU_SOURCE 1
|
||
#endif
|
||
|
||
#ifdef HAVE_CONFIG_H
|
||
# include <config.h>
|
||
#endif
|
||
|
||
#include <string.h>
|
||
|
||
#if defined _LIBC || defined HAVE_ARGZ_H
|
||
# include <argz.h>
|
||
#endif
|
||
#include <ctype.h>
|
||
#include <sys/types.h>
|
||
#include <stdlib.h>
|
||
|
||
#include "loadinfo.h"
|
||
|
||
/* On some strange systems still no definition of NULL is found. Sigh! */
|
||
#ifndef NULL
|
||
# if defined __STDC__ && __STDC__
|
||
# define NULL ((void *) 0)
|
||
# else
|
||
# define NULL 0
|
||
# endif
|
||
#endif
|
||
|
||
/* @@ end of prolog @@ */
|
||
|
||
#ifdef _LIBC
|
||
/* Rename the non ANSI C functions. This is required by the standard
|
||
because some ANSI C functions will require linking with this object
|
||
file and the name space must not be polluted. */
|
||
# ifndef stpcpy
|
||
# define stpcpy(dest, src) __stpcpy(dest, src)
|
||
# endif
|
||
#else
|
||
# ifndef HAVE_STPCPY
|
||
static char *stpcpy (char *dest, const char *src);
|
||
# endif
|
||
#endif
|
||
|
||
/* Pathname support.
|
||
ISSLASH(C) tests whether C is a directory separator character.
|
||
IS_ABSOLUTE_PATH(P) tests whether P is an absolute path. If it is not,
|
||
it may be concatenated to a directory pathname.
|
||
*/
|
||
#if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
|
||
/* Win32, Cygwin, OS/2, DOS */
|
||
# define ISSLASH(C) ((C) == '/' || (C) == '\\')
|
||
# define HAS_DEVICE(P) \
|
||
((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \
|
||
&& (P)[1] == ':')
|
||
# define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P))
|
||
#else
|
||
/* Unix */
|
||
# define ISSLASH(C) ((C) == '/')
|
||
# define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0])
|
||
#endif
|
||
|
||
/* Define function which are usually not available. */
|
||
|
||
#if !defined _LIBC && !defined HAVE___ARGZ_COUNT
|
||
/* Returns the number of strings in ARGZ. */
|
||
static size_t
|
||
argz_count__ (const char *argz, size_t len)
|
||
{
|
||
size_t count = 0;
|
||
while (len > 0)
|
||
{
|
||
size_t part_len = strlen (argz);
|
||
argz += part_len + 1;
|
||
len -= part_len + 1;
|
||
count++;
|
||
}
|
||
return count;
|
||
}
|
||
# undef __argz_count
|
||
# define __argz_count(argz, len) argz_count__ (argz, len)
|
||
#else
|
||
# ifdef _LIBC
|
||
# define __argz_count(argz, len) INTUSE(__argz_count) (argz, len)
|
||
# endif
|
||
#endif /* !_LIBC && !HAVE___ARGZ_COUNT */
|
||
|
||
#if !defined _LIBC && !defined HAVE___ARGZ_STRINGIFY
|
||
/* Make '\0' separated arg vector ARGZ printable by converting all the '\0's
|
||
except the last into the character SEP. */
|
||
static void
|
||
argz_stringify__ (char *argz, size_t len, int sep)
|
||
{
|
||
while (len > 0)
|
||
{
|
||
size_t part_len = strlen (argz);
|
||
argz += part_len;
|
||
len -= part_len + 1;
|
||
if (len > 0)
|
||
*argz++ = sep;
|
||
}
|
||
}
|
||
# undef __argz_stringify
|
||
# define __argz_stringify(argz, len, sep) argz_stringify__ (argz, len, sep)
|
||
#else
|
||
# ifdef _LIBC
|
||
# define __argz_stringify(argz, len, sep) \
|
||
INTUSE(__argz_stringify) (argz, len, sep)
|
||
# endif
|
||
#endif /* !_LIBC && !HAVE___ARGZ_STRINGIFY */
|
||
|
||
#if !defined _LIBC && !defined HAVE___ARGZ_NEXT
|
||
static char *
|
||
argz_next__ (char *argz, size_t argz_len, const char *entry)
|
||
{
|
||
if (entry)
|
||
{
|
||
if (entry < argz + argz_len)
|
||
entry = strchr (entry, '\0') + 1;
|
||
|
||
return entry >= argz + argz_len ? NULL : (char *) entry;
|
||
}
|
||
else
|
||
if (argz_len > 0)
|
||
return argz;
|
||
else
|
||
return 0;
|
||
}
|
||
# undef __argz_next
|
||
# define __argz_next(argz, len, entry) argz_next__ (argz, len, entry)
|
||
#endif /* !_LIBC && !HAVE___ARGZ_NEXT */
|
||
|
||
|
||
/* Return number of bits set in X. */
|
||
static inline int
|
||
pop (int x)
|
||
{
|
||
/* We assume that no more than 16 bits are used. */
|
||
x = ((x & ~0x5555) >> 1) + (x & 0x5555);
|
||
x = ((x & ~0x3333) >> 2) + (x & 0x3333);
|
||
x = ((x >> 4) + x) & 0x0f0f;
|
||
x = ((x >> 8) + x) & 0xff;
|
||
|
||
return x;
|
||
}
|
||
|
||
|
||
struct loaded_l10nfile *
|
||
_nl_make_l10nflist (struct loaded_l10nfile **l10nfile_list,
|
||
const char *dirlist, size_t dirlist_len,
|
||
int mask, const char *language, const char *territory,
|
||
const char *codeset, const char *normalized_codeset,
|
||
const char *modifier, const char *special,
|
||
const char *sponsor, const char *revision,
|
||
const char *filename, int do_allocate)
|
||
{
|
||
char *abs_filename;
|
||
struct loaded_l10nfile **lastp;
|
||
struct loaded_l10nfile *retval;
|
||
char *cp;
|
||
size_t dirlist_count;
|
||
size_t entries;
|
||
int cnt;
|
||
|
||
/* If LANGUAGE contains an absolute directory specification, we ignore
|
||
DIRLIST. */
|
||
if (IS_ABSOLUTE_PATH (language))
|
||
dirlist_len = 0;
|
||
|
||
/* Allocate room for the full file name. */
|
||
abs_filename = (char *) malloc (dirlist_len
|
||
+ strlen (language)
|
||
+ ((mask & TERRITORY) != 0
|
||
? strlen (territory) + 1 : 0)
|
||
+ ((mask & XPG_CODESET) != 0
|
||
? strlen (codeset) + 1 : 0)
|
||
+ ((mask & XPG_NORM_CODESET) != 0
|
||
? strlen (normalized_codeset) + 1 : 0)
|
||
+ (((mask & XPG_MODIFIER) != 0
|
||
|| (mask & CEN_AUDIENCE) != 0)
|
||
? strlen (modifier) + 1 : 0)
|
||
+ ((mask & CEN_SPECIAL) != 0
|
||
? strlen (special) + 1 : 0)
|
||
+ (((mask & CEN_SPONSOR) != 0
|
||
|| (mask & CEN_REVISION) != 0)
|
||
? (1 + ((mask & CEN_SPONSOR) != 0
|
||
? strlen (sponsor) : 0)
|
||
+ ((mask & CEN_REVISION) != 0
|
||
? strlen (revision) + 1 : 0)) : 0)
|
||
+ 1 + strlen (filename) + 1);
|
||
|
||
if (abs_filename == NULL)
|
||
return NULL;
|
||
|
||
/* Construct file name. */
|
||
cp = abs_filename;
|
||
if (dirlist_len > 0)
|
||
{
|
||
memcpy (cp, dirlist, dirlist_len);
|
||
__argz_stringify (cp, dirlist_len, PATH_SEPARATOR);
|
||
cp += dirlist_len;
|
||
cp[-1] = '/';
|
||
}
|
||
|
||
cp = stpcpy (cp, language);
|
||
|
||
if ((mask & TERRITORY) != 0)
|
||
{
|
||
*cp++ = '_';
|
||
cp = stpcpy (cp, territory);
|
||
}
|
||
if ((mask & XPG_CODESET) != 0)
|
||
{
|
||
*cp++ = '.';
|
||
cp = stpcpy (cp, codeset);
|
||
}
|
||
if ((mask & XPG_NORM_CODESET) != 0)
|
||
{
|
||
*cp++ = '.';
|
||
cp = stpcpy (cp, normalized_codeset);
|
||
}
|
||
if ((mask & (XPG_MODIFIER | CEN_AUDIENCE)) != 0)
|
||
{
|
||
/* This component can be part of both syntaces but has different
|
||
leading characters. For CEN we use `+', else `@'. */
|
||
*cp++ = (mask & CEN_AUDIENCE) != 0 ? '+' : '@';
|
||
cp = stpcpy (cp, modifier);
|
||
}
|
||
if ((mask & CEN_SPECIAL) != 0)
|
||
{
|
||
*cp++ = '+';
|
||
cp = stpcpy (cp, special);
|
||
}
|
||
if ((mask & (CEN_SPONSOR | CEN_REVISION)) != 0)
|
||
{
|
||
*cp++ = ',';
|
||
if ((mask & CEN_SPONSOR) != 0)
|
||
cp = stpcpy (cp, sponsor);
|
||
if ((mask & CEN_REVISION) != 0)
|
||
{
|
||
*cp++ = '_';
|
||
cp = stpcpy (cp, revision);
|
||
}
|
||
}
|
||
|
||
*cp++ = '/';
|
||
stpcpy (cp, filename);
|
||
|
||
/* Look in list of already loaded domains whether it is already
|
||
available. */
|
||
lastp = l10nfile_list;
|
||
for (retval = *l10nfile_list; retval != NULL; retval = retval->next)
|
||
if (retval->filename != NULL)
|
||
{
|
||
int compare = strcmp (retval->filename, abs_filename);
|
||
if (compare == 0)
|
||
/* We found it! */
|
||
break;
|
||
if (compare < 0)
|
||
{
|
||
/* It's not in the list. */
|
||
retval = NULL;
|
||
break;
|
||
}
|
||
|
||
lastp = &retval->next;
|
||
}
|
||
|
||
if (retval != NULL || do_allocate == 0)
|
||
{
|
||
free (abs_filename);
|
||
return retval;
|
||
}
|
||
|
||
dirlist_count = (dirlist_len > 0 ? __argz_count (dirlist, dirlist_len) : 1);
|
||
|
||
/* Allocate a new loaded_l10nfile. */
|
||
retval =
|
||
(struct loaded_l10nfile *)
|
||
malloc (sizeof (*retval)
|
||
+ (((dirlist_count << pop (mask)) + (dirlist_count > 1 ? 1 : 0))
|
||
* sizeof (struct loaded_l10nfile *)));
|
||
if (retval == NULL)
|
||
return NULL;
|
||
|
||
retval->filename = abs_filename;
|
||
|
||
/* We set retval->data to NULL here; it is filled in later.
|
||
Setting retval->decided to 1 here means that retval does not
|
||
correspond to a real file (dirlist_count > 1) or is not worth
|
||
looking up (if an unnormalized codeset was specified). */
|
||
retval->decided = (dirlist_count > 1
|
||
|| ((mask & XPG_CODESET) != 0
|
||
&& (mask & XPG_NORM_CODESET) != 0));
|
||
retval->data = NULL;
|
||
|
||
retval->next = *lastp;
|
||
*lastp = retval;
|
||
|
||
entries = 0;
|
||
/* Recurse to fill the inheritance list of RETVAL.
|
||
If the DIRLIST is a real list (i.e. DIRLIST_COUNT > 1), the RETVAL
|
||
entry does not correspond to a real file; retval->filename contains
|
||
colons. In this case we loop across all elements of DIRLIST and
|
||
across all bit patterns dominated by MASK.
|
||
If the DIRLIST is a single directory or entirely redundant (i.e.
|
||
DIRLIST_COUNT == 1), we loop across all bit patterns dominated by
|
||
MASK, excluding MASK itself.
|
||
In either case, we loop down from MASK to 0. This has the effect
|
||
that the extra bits in the locale name are dropped in this order:
|
||
first the modifier, then the territory, then the codeset, then the
|
||
normalized_codeset. */
|
||
for (cnt = dirlist_count > 1 ? mask : mask - 1; cnt >= 0; --cnt)
|
||
if ((cnt & ~mask) == 0
|
||
&& ((cnt & CEN_SPECIFIC) == 0 || (cnt & XPG_SPECIFIC) == 0)
|
||
&& ((cnt & XPG_CODESET) == 0 || (cnt & XPG_NORM_CODESET) == 0))
|
||
{
|
||
if (dirlist_count > 1)
|
||
{
|
||
/* Iterate over all elements of the DIRLIST. */
|
||
char *dir = NULL;
|
||
|
||
while ((dir = __argz_next ((char *) dirlist, dirlist_len, dir))
|
||
!= NULL)
|
||
retval->successor[entries++]
|
||
= _nl_make_l10nflist (l10nfile_list, dir, strlen (dir) + 1,
|
||
cnt, language, territory, codeset,
|
||
normalized_codeset, modifier, special,
|
||
sponsor, revision, filename, 1);
|
||
}
|
||
else
|
||
retval->successor[entries++]
|
||
= _nl_make_l10nflist (l10nfile_list, dirlist, dirlist_len,
|
||
cnt, language, territory, codeset,
|
||
normalized_codeset, modifier, special,
|
||
sponsor, revision, filename, 1);
|
||
}
|
||
retval->successor[entries] = NULL;
|
||
|
||
return retval;
|
||
}
|
||
|
||
/* Normalize codeset name. There is no standard for the codeset
|
||
names. Normalization allows the user to use any of the common
|
||
names. The return value is dynamically allocated and has to be
|
||
freed by the caller. */
|
||
const char *
|
||
_nl_normalize_codeset (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 ((unsigned char) codeset[cnt]))
|
||
{
|
||
++len;
|
||
|
||
if (isalpha ((unsigned char) 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 ((unsigned char) codeset[cnt]))
|
||
*wp++ = tolower ((unsigned char) codeset[cnt]);
|
||
else if (isdigit ((unsigned char) codeset[cnt]))
|
||
*wp++ = codeset[cnt];
|
||
|
||
*wp = '\0';
|
||
}
|
||
|
||
return (const char *) retval;
|
||
}
|
||
|
||
|
||
/* @@ begin of epilog @@ */
|
||
|
||
/* We don't want libintl.a to depend on any other library. So we
|
||
avoid the non-standard function stpcpy. In GNU C Library this
|
||
function is available, though. Also allow the symbol HAVE_STPCPY
|
||
to be defined. */
|
||
#if !_LIBC && !HAVE_STPCPY
|
||
static char *
|
||
stpcpy (char *dest, const char *src)
|
||
{
|
||
while ((*dest++ = *src++) != '\0')
|
||
/* Do nothing. */ ;
|
||
return dest - 1;
|
||
}
|
||
#endif
|