/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
* Returns the number of non-NULL characters in str,
* but not more than maxlen. Does not look past str + maxlen.
*/
#include "lint.h"
#include <stdlib.h>
#include <wchar.h>
size_t
wcsnlen(const wchar_t *str, size_t maxlen)
{
const wchar_t *ptr = str;
if (maxlen != 0) {
do {
if (*ptr++ == L'\0') {
ptr--;
break;
}
} while (--maxlen != 0);
}
return (ptr - str);
}