1*ff77ab83SAlan Somers /*- 2*ff77ab83SAlan Somers * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3*ff77ab83SAlan Somers * 4*ff77ab83SAlan Somers * Copyright (C) 2019 Jan Sucan <jansucan@FreeBSD.org> 5*ff77ab83SAlan Somers * All rights reserved. 6*ff77ab83SAlan Somers * 7*ff77ab83SAlan Somers * Redistribution and use in source and binary forms, with or without 8*ff77ab83SAlan Somers * modification, are permitted provided that the following conditions 9*ff77ab83SAlan Somers * are met: 10*ff77ab83SAlan Somers * 1. Redistributions of source code must retain the above copyright 11*ff77ab83SAlan Somers * notice, this list of conditions and the following disclaimer. 12*ff77ab83SAlan Somers * 2. Redistributions in binary form must reproduce the above copyright 13*ff77ab83SAlan Somers * notice, this list of conditions and the following disclaimer in the 14*ff77ab83SAlan Somers * documentation and/or other materials provided with the distribution. 15*ff77ab83SAlan Somers * 16*ff77ab83SAlan Somers * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17*ff77ab83SAlan Somers * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18*ff77ab83SAlan Somers * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19*ff77ab83SAlan Somers * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20*ff77ab83SAlan Somers * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21*ff77ab83SAlan Somers * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22*ff77ab83SAlan Somers * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23*ff77ab83SAlan Somers * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24*ff77ab83SAlan Somers * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25*ff77ab83SAlan Somers * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26*ff77ab83SAlan Somers * SUCH DAMAGE. 27*ff77ab83SAlan Somers * 28*ff77ab83SAlan Somers * $FreeBSD$ 29*ff77ab83SAlan Somers */ 30*ff77ab83SAlan Somers 31*ff77ab83SAlan Somers #ifndef PING_H 32*ff77ab83SAlan Somers #define PING_H 1 33*ff77ab83SAlan Somers 34*ff77ab83SAlan Somers #include <sys/types.h> 35*ff77ab83SAlan Somers 36*ff77ab83SAlan Somers u_short in_cksum(u_char *, int); 37*ff77ab83SAlan Somers 38*ff77ab83SAlan Somers #endif 39