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-rw-r--r--lib/hard-locale.c70
1 files changed, 12 insertions, 58 deletions
diff --git a/lib/hard-locale.c b/lib/hard-locale.c
index 89027f7..f7fbc47 100644
--- a/lib/hard-locale.c
+++ b/lib/hard-locale.c
@@ -1,28 +1,19 @@
/* hard-locale.c -- Determine whether a locale is hard.
- Copyright (C) 1997-1999, 2002-2004, 2006-2007, 2009-2018 Free Software
+ Copyright (C) 1997-1999, 2002-2004, 2006-2007, 2009-2022 Free Software
Foundation, Inc.
- This program is free software: you can redistribute it and/or
- modify it under the terms of either:
+ This file 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 Lesser General Public License as published by the Free
- Software Foundation; either version 3 of the License, or (at your
- option) any later version.
-
- or
-
- * the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at your
- option) any later version.
-
- or both in parallel, as here.
- This program is distributed in the hope that it will be useful,
+ This file 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.
+ GNU Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
@@ -30,52 +21,15 @@
#include "hard-locale.h"
#include <locale.h>
-#include <stdlib.h>
#include <string.h>
-#ifdef __GLIBC__
-# define GLIBC_VERSION __GLIBC__
-#elif defined __UCLIBC__
-# define GLIBC_VERSION 2
-#else
-# define GLIBC_VERSION 0
-#endif
-
-/* Return true if the current CATEGORY locale is hard, i.e. if you
- can't get away with assuming traditional C or POSIX behavior. */
bool
hard_locale (int category)
{
- bool hard = true;
- char const *p = setlocale (category, NULL);
-
- if (p)
- {
- if (2 <= GLIBC_VERSION)
- {
- if (strcmp (p, "C") == 0 || strcmp (p, "POSIX") == 0)
- hard = false;
- }
- else
- {
- char *locale = strdup (p);
- if (locale)
- {
- /* Temporarily set the locale to the "C" and "POSIX" locales
- to find their names, so that we can determine whether one
- or the other is the caller's locale. */
- if (((p = setlocale (category, "C"))
- && strcmp (p, locale) == 0)
- || ((p = setlocale (category, "POSIX"))
- && strcmp (p, locale) == 0))
- hard = false;
+ char locale[SETLOCALE_NULL_MAX];
- /* Restore the caller's locale. */
- setlocale (category, locale);
- free (locale);
- }
- }
- }
+ if (setlocale_null_r (category, locale, sizeof (locale)))
+ return false;
- return hard;
+ return !(strcmp (locale, "C") == 0 || strcmp (locale, "POSIX") == 0);
}