1 /* $NetBSD: udf_bswap.h,v 1.8 2009/10/22 21:50:01 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 1998 Manuel Bouyer. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * adapted for UDF by Reinoud Zandijk <reinoud@netbsd.org> 27 * 28 */ 29 30 #ifndef _FS_UDF_UDF_BSWAP_H_ 31 #define _FS_UDF_UDF_BSWAP_H_ 32 33 #include <sys/endian.h> 34 #include <machine/bswap.h> 35 #include <sys/bswap.h> 36 37 /* rest only relevant for big endian machines */ 38 #if (BYTE_ORDER == BIG_ENDIAN) 39 40 /* inlines for access to swapped data */ 41 static __inline uint16_t udf_rw16(uint16_t); 42 static __inline uint32_t udf_rw32(uint32_t); 43 static __inline uint64_t udf_rw64(uint64_t); 44 45 46 static __inline uint16_t 47 udf_rw16(uint16_t a) 48 { 49 return bswap16(a); 50 } 51 52 53 static __inline uint32_t 54 udf_rw32(uint32_t a) 55 { 56 return bswap32(a); 57 } 58 59 60 static __inline uint64_t 61 udf_rw64(uint64_t a) 62 { 63 return bswap64(a); 64 } 65 66 #else 67 68 #define udf_rw16(a) ((uint16_t)(a)) 69 #define udf_rw32(a) ((uint32_t)(a)) 70 #define udf_rw64(a) ((uint64_t)(a)) 71 72 #endif 73 74 75 #endif /* !_FS_UDF_UDF_BSWAP_H_ */ 76 77