/*      $NetBSD: wcsdup.c,v 1.6 2022/03/12 17:31:40 christos Exp $      */

/*
* Copyright (C) 2006 Aleksey Cheusov
*
* This material is provided "as is", with absolutely no warranty expressed
* or implied. Any use is at your own risk.
*
* Permission to use or copy this software for any purpose is hereby granted
* without fee. Permission to modify the code and to distribute modified
* code is also granted without any restrictions.
*/

#include <sys/cdefs.h>

#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: wcsdup.c,v 1.6 2022/03/12 17:31:40 christos Exp $");
#endif /* LIBC_SCCS and not lint */

#include "namespace.h"
#include <stdlib.h>
#include <assert.h>
#include <errno.h>
#include <wchar.h>

__weak_alias(wcsdup,_wcsdup)

wchar_t *
wcsdup(const wchar_t *str)
{
       wchar_t *copy;
       size_t len;

       _DIAGASSERT(str != NULL);

       len = wcslen(str) + 1;

       copy = NULL;
       errno = reallocarr(&copy, len, sizeof(*copy));
       if (errno)
               return NULL;

       return wmemcpy(copy, str, len);
}