1 /*- 2 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 3 * 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 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/usr.sbin/ppp/ua.h,v 1.3 1999/08/28 01:18:49 peter Exp $ 27 */ 28 29 #define ua_htonl(src, tgt) \ 30 do { \ 31 u_int32_t __oh; \ 32 memcpy(&__oh, (src), sizeof __oh); \ 33 *(u_char *)(tgt) = __oh >> 24; \ 34 *((u_char *)(tgt) + 1) = (__oh >> 16) & 0xff; \ 35 *((u_char *)(tgt) + 2) = (__oh >> 8) & 0xff; \ 36 *((u_char *)(tgt) + 3) = __oh & 0xff; \ 37 } while (0) 38 39 #define ua_ntohl(src, tgt) \ 40 do { \ 41 u_int32_t __nh; \ 42 __nh = ((u_int32_t)*(u_char *)(src) << 24) | \ 43 ((u_int32_t)*((u_char *)(src) + 1) << 16) | \ 44 ((u_int32_t)*((u_char *)(src) + 2) << 8) | \ 45 (u_int32_t)*((u_char *)(src) + 3); \ 46 memcpy((tgt), &__nh, sizeof __nh); \ 47 } while (0) 48 49 #define ua_htons(src, tgt) \ 50 do { \ 51 u_int16_t __oh; \ 52 memcpy(&__oh, (src), sizeof __oh); \ 53 *(u_char *)(tgt) = __oh >> 8; \ 54 *((u_char *)(tgt) + 1) = __oh & 0xff; \ 55 } while (0) 56 57 #define ua_ntohs(src, tgt) \ 58 do { \ 59 u_int16_t __nh; \ 60 __nh = ((u_int16_t)*(u_char *)(src) << 8) | \ 61 (u_int16_t)*((u_char *)(src) + 1); \ 62 memcpy((tgt), &__nh, sizeof __nh); \ 63 } while (0) 64