1*54fd6939SJiyong Park /*-
2*54fd6939SJiyong Park * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3*54fd6939SJiyong Park *
4*54fd6939SJiyong Park * Copyright (c) 2009 David Schultz <[email protected]>
5*54fd6939SJiyong Park * All rights reserved.
6*54fd6939SJiyong Park *
7*54fd6939SJiyong Park * Redistribution and use in source and binary forms, with or without
8*54fd6939SJiyong Park * modification, are permitted provided that the following conditions
9*54fd6939SJiyong Park * are met:
10*54fd6939SJiyong Park * 1. Redistributions of source code must retain the above copyright
11*54fd6939SJiyong Park * notice, this list of conditions and the following disclaimer.
12*54fd6939SJiyong Park * 2. Redistributions in binary form must reproduce the above copyright
13*54fd6939SJiyong Park * notice, this list of conditions and the following disclaimer in the
14*54fd6939SJiyong Park * documentation and/or other materials provided with the distribution.
15*54fd6939SJiyong Park *
16*54fd6939SJiyong Park * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17*54fd6939SJiyong Park * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18*54fd6939SJiyong Park * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19*54fd6939SJiyong Park * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20*54fd6939SJiyong Park * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21*54fd6939SJiyong Park * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22*54fd6939SJiyong Park * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23*54fd6939SJiyong Park * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24*54fd6939SJiyong Park * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25*54fd6939SJiyong Park * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26*54fd6939SJiyong Park * SUCH DAMAGE.
27*54fd6939SJiyong Park */
28*54fd6939SJiyong Park
29*54fd6939SJiyong Park /*
30*54fd6939SJiyong Park * Portions copyright (c) 2018, ARM Limited and Contributors.
31*54fd6939SJiyong Park * All rights reserved.
32*54fd6939SJiyong Park */
33*54fd6939SJiyong Park
34*54fd6939SJiyong Park #include <string.h>
35*54fd6939SJiyong Park
36*54fd6939SJiyong Park size_t
strnlen(const char * s,size_t maxlen)37*54fd6939SJiyong Park strnlen(const char *s, size_t maxlen)
38*54fd6939SJiyong Park {
39*54fd6939SJiyong Park size_t len;
40*54fd6939SJiyong Park
41*54fd6939SJiyong Park for (len = 0; len < maxlen; len++, s++) {
42*54fd6939SJiyong Park if (!*s)
43*54fd6939SJiyong Park break;
44*54fd6939SJiyong Park }
45*54fd6939SJiyong Park return (len);
46*54fd6939SJiyong Park }
47