1/*	$NetBSD: wcsdup.c,v 1.6 2022/03/12 17:31:40 christos Exp $	*/
2
3/*
4 * Copyright (C) 2006 Aleksey Cheusov
5 *
6 * This material is provided "as is", with absolutely no warranty expressed
7 * or implied. Any use is at your own risk.
8 *
9 * Permission to use or copy this software for any purpose is hereby granted
10 * without fee. Permission to modify the code and to distribute modified
11 * code is also granted without any restrictions.
12 */
13
14#include <sys/cdefs.h>
15
16#if defined(LIBC_SCCS) && !defined(lint)
17__RCSID("$NetBSD: wcsdup.c,v 1.6 2022/03/12 17:31:40 christos Exp $");
18#endif /* LIBC_SCCS and not lint */
19
20#include "namespace.h"
21#include <stdlib.h>
22#include <assert.h>
23#include <errno.h>
24#include <wchar.h>
25
26__weak_alias(wcsdup,_wcsdup)
27
28wchar_t *
29wcsdup(const wchar_t *str)
30{
31	wchar_t *copy;
32	size_t len;
33
34	_DIAGASSERT(str != NULL);
35
36	len = wcslen(str) + 1;
37
38	copy = NULL;
39	errno = reallocarr(&copy, len, sizeof(*copy));
40	if (errno)
41		return NULL;
42
43	return wmemcpy(copy, str, len);
44}
45