| 1 | /* $NetBSD: strnlen.c,v 1.2 2014/01/09 11:25:11 apb Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2009 David Schultz <das@FreeBSD.org> |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #if HAVE_NBTOOL_CONFIG_H |
| 30 | #include "nbtool_config.h" |
| 31 | #endif |
| 32 | |
| 33 | #include <sys/cdefs.h> |
| 34 | #if defined(LIBC_SCCS) && !defined(lint) |
| 35 | __RCSID("$NetBSD: strnlen.c,v 1.2 2014/01/09 11:25:11 apb Exp $" ); |
| 36 | #endif /* LIBC_SCCS and not lint */ |
| 37 | /* FreeBSD: src/lib/libc/string/strnlen.c,v 1.1 2009/02/28 06:00:58 das Exp */ |
| 38 | |
| 39 | #if !defined(_KERNEL) && !defined(_STANDALONE) |
| 40 | #include <string.h> |
| 41 | #else |
| 42 | #include <lib/libkern/libkern.h> |
| 43 | #endif |
| 44 | |
| 45 | #if !HAVE_STRNLEN |
| 46 | size_t |
| 47 | strnlen(const char *s, size_t maxlen) |
| 48 | { |
| 49 | size_t len; |
| 50 | |
| 51 | for (len = 0; len < maxlen; len++, s++) { |
| 52 | if (!*s) |
| 53 | break; |
| 54 | } |
| 55 | return (len); |
| 56 | } |
| 57 | #endif /* !HAVE_STRNLEN */ |
| 58 | |