1 dd038bc6 2021-09-21 thomas.ad /*	$OpenBSD: strnlen.c,v 1.8 2016/10/16 17:37:39 dtucker Exp $	*/
 2 dd038bc6 2021-09-21 thomas.ad 
 3 dd038bc6 2021-09-21 thomas.ad /*
 4 dd038bc6 2021-09-21 thomas.ad  * Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
 5 dd038bc6 2021-09-21 thomas.ad  *
 6 dd038bc6 2021-09-21 thomas.ad  * Permission to use, copy, modify, and distribute this software for any
 7 dd038bc6 2021-09-21 thomas.ad  * purpose with or without fee is hereby granted, provided that the above
 8 dd038bc6 2021-09-21 thomas.ad  * copyright notice and this permission notice appear in all copies.
 9 dd038bc6 2021-09-21 thomas.ad  *
10 dd038bc6 2021-09-21 thomas.ad  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 dd038bc6 2021-09-21 thomas.ad  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 dd038bc6 2021-09-21 thomas.ad  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 dd038bc6 2021-09-21 thomas.ad  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 dd038bc6 2021-09-21 thomas.ad  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 dd038bc6 2021-09-21 thomas.ad  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 dd038bc6 2021-09-21 thomas.ad  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 dd038bc6 2021-09-21 thomas.ad  */
18 dd038bc6 2021-09-21 thomas.ad 
19 dd038bc6 2021-09-21 thomas.ad #include <sys/types.h>
20 dd038bc6 2021-09-21 thomas.ad 
21 dd038bc6 2021-09-21 thomas.ad #include <string.h>
22 dd038bc6 2021-09-21 thomas.ad 
23 dd038bc6 2021-09-21 thomas.ad size_t
24 dd038bc6 2021-09-21 thomas.ad strnlen(const char *str, size_t maxlen)
25 dd038bc6 2021-09-21 thomas.ad {
26 dd038bc6 2021-09-21 thomas.ad 	const char *cp;
27 dd038bc6 2021-09-21 thomas.ad 
28 dd038bc6 2021-09-21 thomas.ad 	for (cp = str; maxlen != 0 && *cp != '\0'; cp++, maxlen--)
29 dd038bc6 2021-09-21 thomas.ad 		;
30 dd038bc6 2021-09-21 thomas.ad 
31 dd038bc6 2021-09-21 thomas.ad 	return (size_t)(cp - str);
32 dd038bc6 2021-09-21 thomas.ad }