1 files changed, 67 insertions, 0 deletions
diff --git a/lib/getlocalename_l-unsafe.h b/lib/getlocalename_l-unsafe.h
new file mode 100644
index 00000000..97b86637
--- /dev/null
+++ b/lib/getlocalename_l-unsafe.h
@@ -0,0 +1,67 @@
+/* Return name of a single locale category.
+   Copyright (C) 2025 Free Software Foundation, Inc.
+
+   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.
+
+   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 Lesser General Public License for more details.
+
+   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/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2025.  */
+
+#ifndef _GETLOCALENAME_L_UNSAFE_H
+#define _GETLOCALENAME_L_UNSAFE_H
+
+#include <locale.h>
+
+#include "arg-nonnull.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* This enumeration describes the storage of the return value.  */
+enum storage
+{
+  /* Storage with indefinite extent.  */
+  STORAGE_INDEFINITE,
+  /* Storage in a thread-independent location, valid until the next setlocale()
+     call.  */
+  STORAGE_GLOBAL,
+  /* Storage in a thread-local buffer, valid until the next
+     getlocalename_l_unlocked() call in the same thread.  */
+  STORAGE_THREAD,
+  /* Storage in or attached to the locale_t object, valid until the next call
+     to newlocale() with that object as base or until the next freelocale() call
+     for that object.  */
+  STORAGE_OBJECT
+};
+
+/* Return type of getlocalename_l_unsafe.  */
+struct string_with_storage
+{
+  const char *value;
+  enum storage storage;
+};
+
+/* Returns the name of the locale category CATEGORY in the given LOCALE object
+   or, if LOCALE is LC_GLOBAL_LOCALE, in the global locale.
+   CATEGORY must be != LC_ALL.  */
+extern struct string_with_storage
+       getlocalename_l_unsafe (int category, locale_t locale)
+                              _GL_ARG_NONNULL ((2));
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GETLOCALENAME_L_UNSAFE_H */