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(©, len, sizeof(*copy)); 40 if (errno) 41 return NULL; 42 43 return wmemcpy(copy, str, len); 44} 45