-/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-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 free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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.
+ 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
+ Lesser 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., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+#include <alloca.h>
+#include <argz.h>
#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
+#include <libc-lock.h>
#include <locale.h>
-#include <langinfo.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
#include "localeinfo.h"
-/* For each category declare two external variables (with weak references):
- extern const struct locale_data *_nl_current_CATEGORY;
- This points to the current locale's in-core data for CATEGORY.
- extern const struct locale_data _nl_C_CATEGORY;
- This contains the built-in "C"/"POSIX" locale's data for CATEGORY.
- Both are weak references; if &_nl_current_CATEGORY is zero,
- then nothing is using the locale data. */
-#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
-extern const struct locale_data *_nl_current_##category; \
-extern const struct locale_data _nl_C_##category; \
-weak_symbol (_nl_current_##category) weak_symbol (_nl_C_##category)
-#include "categories.def"
-#undef DEFINE_CATEGORY
+#ifdef NL_CURRENT_INDIRECT
+
+/* For each category declare a special external symbol
+ _nl_current_CATEGORY_used with a weak reference.
+ This symbol will is defined in lc-CATEGORY.c and will be linked in
+ if anything uses _nl_current_CATEGORY (also defined in that module).
+ Also use a weak reference for the _nl_current_CATEGORY thread variable. */
+
+# define DEFINE_CATEGORY(category, category_name, items, a) \
+ extern char _nl_current_##category##_used; \
+ weak_extern (_nl_current_##category##_used) \
+ weak_extern (_nl_current_##category)
+# include "categories.def"
+# undef DEFINE_CATEGORY
+
+/* Now define a table of flags based on those special weak symbols' values.
+ _nl_current_used[CATEGORY] will be zero if _nl_current_CATEGORY is not
+ linked in. */
+static char *const _nl_current_used[] =
+ {
+# define DEFINE_CATEGORY(category, category_name, items, a) \
+ [category] = &_nl_current_##category##_used,
+# include "categories.def"
+# undef DEFINE_CATEGORY
+ };
-/* Array indexed by category of pointers to _nl_current_CATEGORY slots.
- Elements are zero for categories whose data is never used. */
-const struct locale_data * *const _nl_current[] =
-{
-#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
- [category] = &_nl_current_##category,
-#include "categories.def"
-#undef DEFINE_CATEGORY
-};
+# define CATEGORY_USED(category) (_nl_current_used[category] != 0)
-/* Array indexed by category of pointers to _nl_C_CATEGORY slots.
- Elements are zero for categories whose data is never used. */
-const struct locale_data *const _nl_C[] =
-{
-#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
- [category] = &_nl_C_##category,
-#include "categories.def"
-#undef DEFINE_CATEGORY
-};
+#else
+
+/* The shared library always loads all the categories,
+ and the current global settings are kept in _nl_global_locale. */
+# define CATEGORY_USED(category) (1)
-/* Define an array of category names (also the environment variable names),
- indexed by integral category. */
-const char *const _nl_category_names[] =
+#endif
+
+
+/* Define an array of category names (also the environment variable names). */
+const struct catnamestr_t _nl_category_names attribute_hidden =
{
-#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
- [category] = category_name,
+#define DEFINE_CATEGORY(category, category_name, items, a) \
+ category_name,
#include "categories.def"
-#undef DEFINE_CATEGORY
+#undef DEFINE_CATEGORY
+ };
+
+const uint8_t _nl_category_name_idxs[__LC_LAST] attribute_hidden =
+ {
+#define DEFINE_CATEGORY(category, category_name, items, a) \
+ [category] = offsetof (struct catnamestr_t, CATNAMEMF (__LINE__)),
+#include "categories.def"
+#undef DEFINE_CATEGORY
};
+
/* An array of their lengths, for convenience. */
-const size_t _nl_category_name_sizes[] =
+const uint8_t _nl_category_name_sizes[] attribute_hidden =
{
-#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
+#define DEFINE_CATEGORY(category, category_name, items, a) \
[category] = sizeof (category_name) - 1,
#include "categories.def"
#undef DEFINE_CATEGORY
+ [LC_ALL] = sizeof ("LC_ALL") - 1
};
+#ifdef NL_CURRENT_INDIRECT
+# define WEAK_POSTLOAD(postload) weak_extern (postload)
+#else
+# define WEAK_POSTLOAD(postload) /* Need strong refs in static linking. */
+#endif
+
/* Declare the postload functions used below. */
#undef NO_POSTLOAD
#define NO_POSTLOAD _nl_postload_ctype /* Harmless thing known to exist. */
-#define DEFINE_CATEGORY(category, category_name, items, postload, b, c, d) \
-extern void postload (void);
+#define DEFINE_CATEGORY(category, category_name, items, postload) \
+extern void postload (void); WEAK_POSTLOAD (postload)
#include "categories.def"
#undef DEFINE_CATEGORY
#undef NO_POSTLOAD
/* Define an array indexed by category of postload functions to call after
loading and installing that category's data. */
-void (*const _nl_category_postload[]) (void) =
+static void (*const _nl_category_postload[]) (void) =
{
-#define DEFINE_CATEGORY(category, category_name, items, postload, b, c, d) \
+#define DEFINE_CATEGORY(category, category_name, items, postload) \
[category] = postload,
#include "categories.def"
#undef DEFINE_CATEGORY
};
-const char _nl_C_name[] = "C";
+/* Lock for protecting global data. */
+__libc_rwlock_define_initialized (, __libc_setlocale_lock attribute_hidden)
-/* Name of current locale for each individual category.
- Each is malloc'd unless it is nl_C_name. */
-const char *_nl_current_names[] =
- {
-#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
- _nl_C_name,
-#include "categories.def"
-#undef DEFINE_CATEGORY
- };
+/* Defined in loadmsgcat.c. */
+extern int _nl_msg_cat_cntr;
-/* Composite LC_ALL name for current locale.
- This is malloc'd unless it's _nl_C_name. */
-char *_nl_current_composite_name = (char *) _nl_C_name;
+/* Use this when we come along an error. */
+#define ERROR_RETURN \
+ do { \
+ __set_errno (EINVAL); \
+ return NULL; \
+ } while (0)
-/* Switch to the locale called NAME in CATEGORY. Return a string
- describing the locale. This string can be used as the NAME argument in
- a later call. If NAME is NULL, don't switch locales, but return the
- current one. If NAME is "", switch to a locale based on the environment
- variables, as per POSIX. Return NULL on error. */
-char *
-setlocale (int category, const char *name)
+/* Construct a new composite name. */
+static char *
+new_composite_name (int category, const char **newnames)
{
- /* Return a malloc'd copy of STRING. */
- char *copy (const char *string)
- {
- size_t len = strlen (string) + 1;
- char *new = malloc (len);
- return new ? memcpy (new, string, len) : NULL;
- }
-
- /* Construct a new composite name. */
- char *new_composite_name (int category, char *newnames[LC_ALL])
- {
- size_t lens[LC_ALL], cumlen = 0;
- int i;
- char *new, *p;
- int same = 1;
-
- for (i = 0; i < LC_ALL; ++i)
+ size_t last_len = 0;
+ size_t cumlen = 0;
+ int i;
+ char *new, *p;
+ int same = 1;
+
+ for (i = 0; i < __LC_LAST; ++i)
+ if (i != LC_ALL)
{
- char *name = (category == LC_ALL ? newnames[i] :
- category == i ? newnames[0] :
- (char *) _nl_current_names[i]);
- lens[i] = strlen (name);
- cumlen += _nl_category_name_sizes[i] + 1 + lens[i] + 1;
- if (i > 0 && same && strcmp (name, newnames[0]))
+ const char *name = (category == LC_ALL ? newnames[i]
+ : category == i ? newnames[0]
+ : _nl_global_locale.__names[i]);
+ last_len = strlen (name);
+ cumlen += _nl_category_name_sizes[i] + 1 + last_len + 1;
+ if (same && name != newnames[0] && strcmp (name, newnames[0]) != 0)
same = 0;
}
- if (same)
- {
- /* All the categories use the same name. */
- new = malloc (lens[0] + 1);
- if (! new)
- {
- if (!strcmp (newnames[0], "C") || !strcmp (newnames[0], "POSIX"))
- return (char *) _nl_C_name;
- return NULL;
- }
- memcpy (new, newnames[0], lens[0] + 1);
- return new;
- }
+ if (same)
+ {
+ /* All the categories use the same name. */
+ if (strcmp (newnames[0], _nl_C_name) == 0
+ || strcmp (newnames[0], _nl_POSIX_name) == 0)
+ return (char *) _nl_C_name;
+
+ new = malloc (last_len + 1);
+
+ return new == NULL ? NULL : memcpy (new, newnames[0], last_len + 1);
+ }
- new = malloc (cumlen);
- if (! new)
- return NULL;
- p = new;
- for (i = 0; i < LC_ALL; ++i)
+ new = malloc (cumlen);
+ if (new == NULL)
+ return NULL;
+ p = new;
+ for (i = 0; i < __LC_LAST; ++i)
+ if (i != LC_ALL)
{
/* Add "CATEGORY=NAME;" to the string. */
- char *name = (category == LC_ALL ? newnames[i] :
- category == i ? newnames[0] :
- (char *) _nl_current_names[i]);
- memcpy (p, _nl_category_names[i], _nl_category_name_sizes[i]);
- p += _nl_category_name_sizes[i];
+ const char *name = (category == LC_ALL ? newnames[i]
+ : category == i ? newnames[0]
+ : _nl_global_locale.__names[i]);
+ p = __stpcpy (p, _nl_category_names_get (i));
*p++ = '=';
- memcpy (p, name, lens[i]);
- p += lens[i];
+ p = __stpcpy (p, name);
*p++ = ';';
}
- p[-1] = '\0'; /* Clobber the last ';'. */
- return new;
- }
- /* Put COMPOSITE in _nl_current_composite_name and free the old value. */
- void setcomposite (char *composite)
- {
- char *old = _nl_current_composite_name;
- _nl_current_composite_name = composite;
- if (old != _nl_C_name)
- free (old);
- }
- /* Put NAME in _nl_current_names and free the old value. */
- void setname (int category, const char *name)
- {
- const char *oldname = _nl_current_names[category];
- _nl_current_names[category] = name;
- if (oldname != _nl_C_name)
- free ((char *) oldname);
- }
- /* Put DATA in *_nl_current[CATEGORY] and free the old value. */
- void setdata (int category, struct locale_data *data)
+ p[-1] = '\0'; /* Clobber the last ';'. */
+ return new;
+}
+
+
+/* Put NAME in _nl_global_locale.__names. */
+static void
+setname (int category, const char *name)
+{
+ if (_nl_global_locale.__names[category] == name)
+ return;
+
+ if (_nl_global_locale.__names[category] != _nl_C_name)
+ free ((char *) _nl_global_locale.__names[category]);
+
+ _nl_global_locale.__names[category] = name;
+}
+
+/* Put DATA in *_nl_current[CATEGORY]. */
+static void
+setdata (int category, struct __locale_data *data)
+{
+ if (CATEGORY_USED (category))
{
- if (_nl_current[category])
- {
- const struct locale_data *olddata = *_nl_current[category];
- *_nl_current[category] = data;
- if (_nl_category_postload[category])
- (*_nl_category_postload[category]) ();
- if (olddata != _nl_C[category])
- _nl_free_locale ((struct locale_data *) olddata);
- }
+ _nl_global_locale.__locales[category] = data;
+ if (_nl_category_postload[category])
+ (*_nl_category_postload[category]) ();
}
+}
- const char *current_name;
+char *
+setlocale (int category, const char *locale)
+{
+ char *locale_path;
+ size_t locale_path_len;
+ const char *locpath_var;
char *composite;
- if (category < 0 || category > LC_ALL)
+ /* Sanity check for CATEGORY argument. */
+ if (__builtin_expect (category, 0) < 0
+ || __builtin_expect (category, 0) >= __LC_LAST)
+ ERROR_RETURN;
+
+ /* Does user want name of current locale? */
+ if (locale == NULL)
+ return (char *) _nl_global_locale.__names[category];
+
+ /* Protect global data. */
+ __libc_rwlock_wrlock (__libc_setlocale_lock);
+
+ if (strcmp (locale, _nl_global_locale.__names[category]) == 0)
{
- errno = EINVAL;
- return NULL;
- }
+ /* Changing to the same thing. */
+ __libc_rwlock_unlock (__libc_setlocale_lock);
- if (category == LC_ALL)
- current_name = _nl_current_composite_name;
- else
- current_name = _nl_current_names[category];
+ return (char *) _nl_global_locale.__names[category];
+ }
- if (name == NULL)
- /* Return the name of the current locale. */
- return (char *) current_name;
+ /* We perhaps really have to load some data. So we determine the
+ path in which to look for the data now. The environment variable
+ `LOCPATH' must only be used when the binary has no SUID or SGID
+ bit set. If using the default path, we tell _nl_find_locale
+ by passing null and it can check the canonical locale archive. */
+ locale_path = NULL;
+ locale_path_len = 0;
- if (name == current_name)
- /* Changing to the same thing. */
- return (char *) current_name;
+ locpath_var = getenv ("LOCPATH");
+ if (locpath_var != NULL && locpath_var[0] != '\0')
+ {
+ if (__argz_create_sep (locpath_var, ':',
+ &locale_path, &locale_path_len) != 0
+ || __argz_add_sep (&locale_path, &locale_path_len,
+ _nl_default_locale_path, ':') != 0)
+ {
+ __libc_rwlock_unlock (__libc_setlocale_lock);
+ return NULL;
+ }
+ }
if (category == LC_ALL)
{
- const size_t len = strlen (name) + 1;
- char *newnames[LC_ALL];
- char *p;
- struct locale_data *newdata[LC_ALL];
+ /* The user wants to set all categories. The desired locales
+ for the individual categories can be selected by using a
+ composite locale name. This is a semi-colon separated list
+ of entries of the form `CATEGORY=VALUE'. */
+ const char *newnames[__LC_LAST];
+ struct __locale_data *newdata[__LC_LAST];
+ /* Copy of the locale argument, for in-place splitting. */
+ char *locale_copy = NULL;
/* Set all name pointers to the argument name. */
- for (category = 0; category < LC_ALL; ++category)
- newnames[category] = (char *) name;
+ for (category = 0; category < __LC_LAST; ++category)
+ if (category != LC_ALL)
+ newnames[category] = (char *) locale;
- p = strchr (name, ';');
- if (p)
+ if (__glibc_unlikely (strchr (locale, ';') != NULL))
{
- /* This is a composite name. Make a local copy and split it up. */
- int i;
- char *n = alloca (len);
- memcpy (n, name, len);
+ /* This is a composite name. Make a copy and split it up. */
+ locale_copy = __strdup (locale);
+ if (__glibc_unlikely (locale_copy == NULL))
+ {
+ __libc_rwlock_unlock (__libc_setlocale_lock);
+ return NULL;
+ }
+ char *np = locale_copy;
+ char *cp;
+ int cnt;
- while ((p = strchr (n, '=')) != NULL)
+ while ((cp = strchr (np, '=')) != NULL)
{
- for (i = 0; i < LC_ALL; ++i)
- if (_nl_category_name_sizes[i] == p - n &&
- !memcmp (_nl_category_names[i], n, p - n))
+ for (cnt = 0; cnt < __LC_LAST; ++cnt)
+ if (cnt != LC_ALL
+ && (size_t) (cp - np) == _nl_category_name_sizes[cnt]
+ && (memcmp (np, (_nl_category_names_get (cnt)), cp - np)
+ == 0))
break;
- if (i == LC_ALL)
+
+ if (cnt == __LC_LAST)
{
+ error_return:
+ __libc_rwlock_unlock (__libc_setlocale_lock);
+ free (locale_copy);
+
/* Bogus category name. */
- errno = EINVAL;
- return NULL;
+ ERROR_RETURN;
}
- if (i < LC_ALL)
+
+ /* Found the category this clause sets. */
+ newnames[cnt] = ++cp;
+ cp = strchr (cp, ';');
+ if (cp != NULL)
{
- /* Found the category this clause sets. */
- char *end = strchr (++p, ';');
- newnames[i] = p;
- if (end)
- {
- /* Examine the next clause. */
- *end = '\0';
- n = end + 1;
- }
- else
- /* This was the last clause. We are done. */
- break;
+ /* Examine the next clause. */
+ *cp = '\0';
+ np = cp + 1;
}
+ else
+ /* This was the last clause. We are done. */
+ break;
}
- for (i = 0; i < LC_ALL; ++i)
- if (newnames[i] == name)
+ for (cnt = 0; cnt < __LC_LAST; ++cnt)
+ if (cnt != LC_ALL && newnames[cnt] == locale)
/* The composite name did not specify all categories. */
- return NULL;
+ goto error_return;
}
-
+
/* Load the new data for each category. */
while (category-- > 0)
- /* Only actually load the data if anything will use it. */
- if (_nl_current[category])
+ if (category != LC_ALL)
{
- newdata[category] = _nl_load_locale (category,
+ newdata[category] = _nl_find_locale (locale_path, locale_path_len,
+ category,
&newnames[category]);
- if (newdata[category])
- newnames[category] = copy (newnames[category]);
- if (! newdata[category] || ! newnames[category])
+
+ if (newdata[category] == NULL)
{
- if (!strcmp (newnames[category], "C") ||
- !strcmp (newnames[category], "POSIX"))
- {
- /* Loading from a file failed, but this is a request
- for the default locale. Use the built-in data. */
- if (! newdata[category])
- newdata[category]
- = (struct locale_data *) _nl_C[category];
- newnames[category] = (char *) _nl_C_name;
- }
- else
- {
- /* Loading this part of the locale failed.
- Abort the composite load. */
- abort_composite:
- while (++category < LC_ALL)
- {
- if (_nl_current[category])
- _nl_free_locale (newdata[category]);
- if (newnames[category] != _nl_C_name)
- free (newnames[category]);
- }
- return NULL;
- }
+#ifdef NL_CURRENT_INDIRECT
+ if (newnames[category] == _nl_C_name)
+ /* Null because it's the weak value of _nl_C_LC_FOO. */
+ continue;
+#endif
+ break;
}
- }
- else
- {
- /* The data is never used; just change the name. */
- newnames[category] = copy (newnames[category]);
- if (! newnames[category])
+
+ /* We must not simply free a global locale since we have
+ no control over the usage. So we mark it as
+ un-deletable. And yes, the 'if' is needed, the data
+ might be in read-only memory. */
+ if (newdata[category]->usage_count != UNDELETABLE)
+ newdata[category]->usage_count = UNDELETABLE;
+
+ /* Make a copy of locale name. */
+ if (newnames[category] != _nl_C_name)
{
- if (!strcmp (newnames[category], "C") ||
- !strcmp (newnames[category], "POSIX"))
- newnames[category] = (char *) _nl_C_name;
+ if (strcmp (newnames[category],
+ _nl_global_locale.__names[category]) == 0)
+ newnames[category] = _nl_global_locale.__names[category];
else
{
- while (++category < LC_ALL)
- if (newnames[category] != _nl_C_name)
- free (newnames[category]);
+ newnames[category] = __strdup (newnames[category]);
+ if (newnames[category] == NULL)
+ break;
}
}
}
- composite = new_composite_name (LC_ALL, newnames);
- if (! composite)
+ /* Create new composite name. */
+ composite = (category >= 0
+ ? NULL : new_composite_name (LC_ALL, newnames));
+ if (composite != NULL)
{
- category = -1;
- goto abort_composite;
- }
+ /* Now we have loaded all the new data. Put it in place. */
+ for (category = 0; category < __LC_LAST; ++category)
+ if (category != LC_ALL)
+ {
+ setdata (category, newdata[category]);
+ setname (category, newnames[category]);
+ }
+ setname (LC_ALL, composite);
- /* Now we have loaded all the new data. Put it in place. */
- for (category = 0; category < LC_ALL; ++category)
- {
- setdata (category, newdata[category]);
- setname (category, newnames[category]);
+ /* We successfully loaded a new locale. Let the message catalog
+ functions know about this. */
+ ++_nl_msg_cat_cntr;
}
- setcomposite (composite);
+ else
+ for (++category; category < __LC_LAST; ++category)
+ if (category != LC_ALL && newnames[category] != _nl_C_name
+ && newnames[category] != _nl_global_locale.__names[category])
+ free ((char *) newnames[category]);
+
+ /* Critical section left. */
+ __libc_rwlock_unlock (__libc_setlocale_lock);
+
+ /* Free the resources. */
+ free (locale_path);
+ free (locale_copy);
return composite;
}
else
{
- char *newname = copy (name);
- if (! newname)
+ struct __locale_data *newdata = NULL;
+ const char *newname[1] = { locale };
+
+ if (CATEGORY_USED (category))
{
- if (!strcmp (name, "C") || !strcmp (name, "POSIX"))
- newname = (char *) _nl_C_name;
- else
- return NULL;
+ /* Only actually load the data if anything will use it. */
+ newdata = _nl_find_locale (locale_path, locale_path_len, category,
+ &newname[0]);
+ if (newdata == NULL)
+ goto abort_single;
+
+ /* We must not simply free a global locale since we have no
+ control over the usage. So we mark it as un-deletable.
+
+ Note: do not remove the `if', it's necessary to cope with
+ the builtin locale data. */
+ if (newdata->usage_count != UNDELETABLE)
+ newdata->usage_count = UNDELETABLE;
}
- composite = new_composite_name (category, &newname);
- if (! composite)
+ /* Make a copy of locale name. */
+ if (newname[0] != _nl_C_name)
{
- if (newname != _nl_C_name)
- free (newname);
- return NULL;
+ newname[0] = __strdup (newname[0]);
+ if (newname[0] == NULL)
+ goto abort_single;
}
- /* Only actually load the data if anything will use it. */
- if (_nl_current[category])
+ /* Create new composite name. */
+ composite = new_composite_name (category, newname);
+ if (composite == NULL)
{
- struct locale_data *newdata = _nl_load_locale (category,
- (char **) &name);
- if (! newdata)
- {
- if (!strcmp (name, "C") || !strcmp (name, "POSIX"))
- newdata = (struct locale_data *) _nl_C[category];
- else
- return NULL;
- }
- setdata (category, newdata);
+ if (newname[0] != _nl_C_name)
+ free ((char *) newname[0]);
+
+ /* Say that we don't have any data loaded. */
+ abort_single:
+ newname[0] = NULL;
+ }
+ else
+ {
+ if (CATEGORY_USED (category))
+ setdata (category, newdata);
+
+ setname (category, newname[0]);
+ setname (LC_ALL, composite);
+
+ /* We successfully loaded a new locale. Let the message catalog
+ functions know about this. */
+ ++_nl_msg_cat_cntr;
}
- setname (category, newname);
- setcomposite (composite);
+ /* Critical section left. */
+ __libc_rwlock_unlock (__libc_setlocale_lock);
+
+ /* Free the resources (the locale path variable. */
+ free (locale_path);
+
+ return (char *) newname[0];
+ }
+}
+libc_hidden_def (setlocale)
+
+static void __libc_freeres_fn_section
+free_category (int category,
+ struct __locale_data *here, struct __locale_data *c_data)
+{
+ struct loaded_l10nfile *runp = _nl_locale_file_list[category];
- return newname;
+ /* If this category is already "C" don't do anything. */
+ if (here != c_data)
+ {
+ /* We have to be prepared that sometime later we still
+ might need the locale information. */
+ setdata (category, c_data);
+ setname (category, _nl_C_name);
+ }
+
+ while (runp != NULL)
+ {
+ struct loaded_l10nfile *curr = runp;
+ struct __locale_data *data = (struct __locale_data *) runp->data;
+
+ if (data != NULL && data != c_data)
+ _nl_unload_locale (data);
+ runp = runp->next;
+ free ((char *) curr->filename);
+ free (curr);
+ }
+}
+
+/* This is called from iconv/gconv_db.c's free_mem, as locales must
+ be freed before freeing gconv steps arrays. */
+void __libc_freeres_fn_section
+_nl_locale_subfreeres (void)
+{
+#ifdef NL_CURRENT_INDIRECT
+ /* We don't use the loop because we want to have individual weak
+ symbol references here. */
+# define DEFINE_CATEGORY(category, category_name, items, a) \
+ if (CATEGORY_USED (category)) \
+ { \
+ extern struct __locale_data _nl_C_##category; \
+ weak_extern (_nl_C_##category) \
+ free_category (category, *_nl_current_##category, &_nl_C_##category); \
}
+# include "categories.def"
+# undef DEFINE_CATEGORY
+#else
+ int category;
+
+ for (category = 0; category < __LC_LAST; ++category)
+ if (category != LC_ALL)
+ free_category (category, _NL_CURRENT_DATA (category),
+ _nl_C_locobj.__locales[category]);
+#endif
+
+ setname (LC_ALL, _nl_C_name);
+
+ /* This frees the data structures associated with the locale archive.
+ The locales from the archive are not in the file list, so we have
+ not called _nl_unload_locale on them above. */
+ _nl_archive_subfreeres ();
}
projects / thirdparty / glibc.git / blobdiff