1706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh/*- 2706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 3706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * All rights reserved. 4706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 5706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Redistribution and use in source and binary forms, with or without 6706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * modification, are permitted provided that the following conditions 7706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * are met: 8706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 1. Redistributions of source code must retain the above copyright 9706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * notice, this list of conditions and the following disclaimer. 10706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 2. Redistributions in binary form must reproduce the above copyright 11706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * notice, this list of conditions and the following disclaimer in the 12706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * documentation and/or other materials provided with the distribution. 13706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 14706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * SUCH DAMAGE. 25706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 26706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * $FreeBSD: src/usr.sbin/ppp/ua.h,v 1.3.62.1 2010/12/21 17:10:29 kensmith Exp $ 27706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh */ 28706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 29706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifdef __i386__ /* Do any other archs not care about alignment ? */ 30706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 31706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh# define ua_htonl(src, tgt) (*(u_int32_t *)(tgt) = htonl(*(u_int32_t *)(src))) 32706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh# define ua_ntohl(src, tgt) (*(u_int32_t *)(tgt) = ntohl(*(u_int32_t *)(src))) 33706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh# define ua_htons(src, tgt) (*(u_int16_t *)(tgt) = htons(*(u_int16_t *)(src))) 34706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh# define ua_ntohs(src, tgt) (*(u_int16_t *)(tgt) = ntohs(*(u_int16_t *)(src))) 35706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 36706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#else /* We care about alignment (or else drop a core !) */ 37706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 38706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh# define ua_htonl(src, tgt) \ 39706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh do { \ 40706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh u_int32_t __oh; \ 41706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh memcpy(&__oh, (src), sizeof __oh); \ 42706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh *(u_char *)(tgt) = __oh >> 24; \ 43706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh *((u_char *)(tgt) + 1) = (__oh >> 16) & 0xff; \ 44706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh *((u_char *)(tgt) + 2) = (__oh >> 8) & 0xff; \ 45706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh *((u_char *)(tgt) + 3) = __oh & 0xff; \ 46706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } while (0) 47706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 48706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh# define ua_ntohl(src, tgt) \ 49706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh do { \ 50706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh u_int32_t __nh; \ 51706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh __nh = ((u_int32_t)*(u_char *)(src) << 24) | \ 52706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ((u_int32_t)*((u_char *)(src) + 1) << 16) | \ 53706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ((u_int32_t)*((u_char *)(src) + 2) << 8) | \ 54706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (u_int32_t)*((u_char *)(src) + 3); \ 55706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh memcpy((tgt), &__nh, sizeof __nh); \ 56706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } while (0) 57706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 58706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh# define ua_htons(src, tgt) \ 59706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh do { \ 60706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh u_int16_t __oh; \ 61706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh memcpy(&__oh, (src), sizeof __oh); \ 62706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh *(u_char *)(tgt) = __oh >> 8; \ 63706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh *((u_char *)(tgt) + 1) = __oh & 0xff; \ 64706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } while (0) 65706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 66706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh# define ua_ntohs(src, tgt) \ 67706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh do { \ 68706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh u_int16_t __nh; \ 69706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh __nh = ((u_int16_t)*(u_char *)(src) << 8) | \ 70706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (u_int16_t)*((u_char *)(src) + 1); \ 71706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh memcpy((tgt), &__nh, sizeof __nh); \ 72706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } while (0) 73706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 74706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 75