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/*
* 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.
* Copyright 2018 Joyent, Inc.
*/
#include "lint.h"
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include <sys/types.h>
/*
* Create a copy of string s, but only duplicate the first n bytes.
* Return NULL if the new string can't be allocated.
*/
char *
strndup(const char *s1, size_t n)
{
char *s2;
n = strnlen(s1, n);
if ((s2 = malloc(n + 1)) != NULL) {
bcopy(s1, s2, n);
s2[n] = '\0';
}
return (s2);
}
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