1 /*- 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)in_systm.h 8.1 (Berkeley) 6/10/93 30 * $FreeBSD$ 31 */ 32 33 #ifndef _NETINET_IN_SYSTM_H_ 34 #define _NETINET_IN_SYSTM_H_ 35 36 /* 37 * Miscellaneous internetwork 38 * definitions for kernel. 39 */ 40 41 /* 42 * Network types. 43 * 44 * Internally the system keeps counters in the headers with the bytes 45 * swapped so that VAX instructions will work on them. It reverses 46 * the bytes before transmission at each protocol level. The n_ types 47 * represent the types with the bytes in ``high-ender'' order. Network 48 * byte order is usually referered to as big-endian these days rather 49 * than high-ender, which sadly invokes an Orson Scott Card novel, or 50 * worse, the movie. 51 */ 52 typedef u_int16_t n_short; /* short as received from the net */ 53 typedef u_int32_t n_long; /* long as received from the net */ 54 55 typedef u_int32_t n_time; /* ms since 00:00 UTC, byte rev */ 56 57 #ifdef _KERNEL 58 uint32_t iptime(void); 59 #endif 60 61 #endif 62