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45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2008 Sun Microsystems, Inc.
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* All rights reserved. Use is subject to license terms.
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*/
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#include <string.h>
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#include <sys/types.h>
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/*
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* Returns the number of non-NULL bytes in string argument,
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* but not more than maxlen. Does not look past str + maxlen.
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*/
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size_t
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strnlen(const char *str, size_t maxlen)
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{
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const char *ptr;
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ptr = memchr(str, 0, maxlen);
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if (ptr == NULL)
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return (maxlen);
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return (ptr - str);
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}
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