sudo/lib/util/strnlen.c

46 lines
1.3 KiB
C

/* $OpenBSD: strnlen.c,v 1.5 2014/06/10 04:17:37 deraadt Exp $ */
/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2010 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
*/
#include <config.h>
#ifndef HAVE_STRNLEN
#include <sys/types.h>
#include <sudo_compat.h>
size_t
sudo_strnlen(const char *str, size_t maxlen)
{
const char *cp;
for (cp = str; maxlen != 0 && *cp != '\0'; cp++, maxlen--)
continue;
return (size_t)(cp - str);
}
#endif /* HAVE_STRNLEN */