/* * 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 2008 Sun Microsystems, Inc. * All rights reserved. Use is subject to license terms. */ #include "lint.h" #include #include /* * Returns the number of non-NULL bytes in string argument, * but not more than maxlen. Does not look past str + maxlen. */ size_t strnlen(const char *str, size_t maxlen) { const char *ptr; ptr = memchr(str, 0, maxlen); if (ptr == NULL) return (maxlen); return (ptr - str); }