1 /* $NetBSD: udf_bswap.h,v 1.5 2008/05/14 16:49:48 reinoud 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 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * adapted for UDF by Reinoud Zandijk <reinoud@netbsd.org> 34 * 35 */ 36 37 #ifndef _FS_UDF_UDF_BSWAP_H_ 38 #define _FS_UDF_UDF_BSWAP_H_ 39 40 #if HAVE_ENDIAN_H 41 #include <endian.h> 42 #else 43 #if HAVE_SYS_ENDIAN_H 44 #include <sys/endian.h> 45 #else 46 #if HAVE_MACHINE_ENDIAN_H 47 #include <machine/endian.h> 48 #endif 49 #endif 50 #endif 51 52 /* rest only relevant for big endian machines */ 53 #if (BYTE_ORDER == BIG_ENDIAN) 54 55 #include <machine/bswap.h> 56 #include <sys/bswap.h> 57 58 /* inlines for access to swapped data */ 59 static __inline u_int16_t udf_rw16(u_int16_t); 60 static __inline u_int32_t udf_rw32(u_int32_t); 61 static __inline u_int64_t udf_rw64(u_int64_t); 62 63 64 static __inline u_int16_t 65 udf_rw16(a) 66 u_int16_t a; 67 { 68 return bswap16(a); 69 } 70 71 72 static __inline u_int32_t 73 udf_rw32(a) 74 u_int32_t a; 75 { 76 return bswap32(a); 77 } 78 79 80 static __inline u_int64_t 81 udf_rw64(a) 82 u_int64_t a; 83 { 84 return bswap64(a); 85 } 86 87 #else 88 89 #define udf_rw16(a) ((uint16_t)(a)) 90 #define udf_rw32(a) ((uint32_t)(a)) 91 #define udf_rw64(a) ((uint64_t)(a)) 92 93 #endif 94 95 96 #endif /* !_FS_UDF_UDF_BSWAP_H_ */ 97