1/* 2 * Copyright (c) 2009-2011 Apple Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23 24/* 25 * nbo.h 26 * - network byte order 27 * - inlines to set/get values to/from network byte order 28 */ 29 30#ifndef _S_NBO_H 31#define _S_NBO_H 32 33#include "symbol_scope.h" 34#include <strings.h> 35 36/* 37 * Function: net_uint16_set 38 * Purpose: 39 * Set a field in a structure that's at least 16 bits to the given 40 * value, putting it into network byte order 41 */ 42INLINE void 43net_uint16_set(uint8_t * field, uint16_t value) 44{ 45 uint16_t tmp_value = htons(value); 46 bcopy((void *)&tmp_value, (void *)field, 47 sizeof(uint16_t)); 48 return; 49} 50 51/* 52 * Function: net_uint16_get 53 * Purpose: 54 * Get a field in a structure that's at least 16 bits, converting 55 * to host byte order. 56 */ 57INLINE uint16_t 58net_uint16_get(const uint8_t * field) 59{ 60 uint16_t tmp_field; 61 62 bcopy((void *)field, (void *)&tmp_field, 63 sizeof(uint16_t)); 64 return (ntohs(tmp_field)); 65} 66 67/* 68 * Function: net_uint32_set 69 * Purpose: 70 * Set a field in a structure that's at least 32 bits to the given 71 * value, putting it into network byte order 72 */ 73INLINE void 74net_uint32_set(uint8_t * field, uint32_t value) 75{ 76 uint32_t tmp_value = htonl(value); 77 78 bcopy((void *)&tmp_value, (void *)field, 79 sizeof(uint32_t)); 80 return; 81} 82 83/* 84 * Function: net_uint32_get 85 * Purpose: 86 * Get a field in a structure that's at least 32 bits, converting 87 * to host byte order. 88 */ 89INLINE uint32_t 90net_uint32_get(const uint8_t * field) 91{ 92 uint32_t tmp_field; 93 94 bcopy((void *)field, &tmp_field, 95 sizeof(uint32_t)); 96 return (ntohl(tmp_field)); 97} 98 99#endif /* _S_NBO_H */ 100