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 <stdint.h> 35#include <strings.h> 36#include <sys/_endian.h> 37 38/* 39 * Function: net_uint16_set 40 * Purpose: 41 * Set a field in a structure that's at least 16 bits to the given 42 * value, putting it into network byte order 43 */ 44INLINE void 45net_uint16_set(uint8_t * field, uint16_t value) 46{ 47 uint16_t tmp_value = htons(value); 48 bcopy((void *)&tmp_value, (void *)field, 49 sizeof(uint16_t)); 50 return; 51} 52 53/* 54 * Function: net_uint16_get 55 * Purpose: 56 * Get a field in a structure that's at least 16 bits, converting 57 * to host byte order. 58 */ 59INLINE uint16_t 60net_uint16_get(const uint8_t * field) 61{ 62 uint16_t tmp_field; 63 64 bcopy((void *)field, (void *)&tmp_field, 65 sizeof(uint16_t)); 66 return (ntohs(tmp_field)); 67} 68 69/* 70 * Function: net_uint32_set 71 * Purpose: 72 * Set a field in a structure that's at least 32 bits to the given 73 * value, putting it into network byte order 74 */ 75INLINE void 76net_uint32_set(uint8_t * field, uint32_t value) 77{ 78 uint32_t tmp_value = htonl(value); 79 80 bcopy((void *)&tmp_value, (void *)field, 81 sizeof(uint32_t)); 82 return; 83} 84 85/* 86 * Function: net_uint32_get 87 * Purpose: 88 * Get a field in a structure that's at least 32 bits, converting 89 * to host byte order. 90 */ 91INLINE uint32_t 92net_uint32_get(const uint8_t * field) 93{ 94 uint32_t tmp_field; 95 96 bcopy((void *)field, &tmp_field, 97 sizeof(uint32_t)); 98 return (ntohl(tmp_field)); 99} 100 101#endif /* _S_NBO_H */ 102