bsd/ppc/endian.h

   1 /*
   2  * Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
   3  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
   4  *
   5  * @APPLE_LICENSE_HEADER_START@
   6  *
   7  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   8  *
   9  * This file contains Original Code and/or Modifications of Original Code
  10  * as defined in and that are subject to the Apple Public Source License
  11  * Version 2.0 (the 'License'). You may not use this file except in
  12  * compliance with the License. Please obtain a copy of the License at
  13  * http://www.opensource.apple.com/apsl/ and read it before using this
  14  * file.
  15  *
  16  * The Original Code and all software distributed under the License are
  17  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  18  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  19  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  21  * Please see the License for the specific language governing rights and
  22  * limitations under the License.
  23  *
  24  * @APPLE_LICENSE_HEADER_END@
  25  */
  26 /*
  27  * Copyright (c) 1987, 1991, 1993
  28  *      The Regents of the University of California.  All rights reserved.
  29  *
  30  * Redistribution and use in source and binary forms, with or without
  31  * modification, are permitted provided that the following conditions
  32  * are met:
  33  * 1. Redistributions of source code must retain the above copyright
  34  *    notice, this list of conditions and the following disclaimer.
  35  * 2. Redistributions in binary form must reproduce the above copyright
  36  *    notice, this list of conditions and the following disclaimer in the
  37  *    documentation and/or other materials provided with the distribution.
  38  * 3. All advertising materials mentioning features or use of this software
  39  *    must display the following acknowledgement:
  40  *      This product includes software developed by the University of
  41  *      California, Berkeley and its contributors.
  42  * 4. Neither the name of the University nor the names of its contributors
  43  *    may be used to endorse or promote products derived from this software
  44  *    without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  56  * SUCH DAMAGE.
  57  *
  58  *      @(#)endian.h    8.1 (Berkeley) 6/10/93
  59  */
  60
  61 #ifndef _PPC_ENDIAN_H_
  62 #define _PPC_ENDIAN_H_
  63
  64 /*
  65  * Define the order of 32-bit words in 64-bit words.
  66  */
  67 #define _QUAD_HIGHWORD 0
  68 #define _QUAD_LOWWORD 1
  69
  70 #if     defined(KERNEL) || !defined(_POSIX_SOURCE)
  71 /*
  72  * Definitions for byte order, according to byte significance from low
  73  * address to high.
  74  */
  75 #define LITTLE_ENDIAN   1234    /* LSB first: i386, vax */
  76 #define BIG_ENDIAN      4321    /* MSB first: 68000, ibm, net, ppc */
  77 #define PDP_ENDIAN      3412    /* LSB first in word, MSW first in long */
  78
  79 #define BYTE_ORDER      BIG_ENDIAN
  80
  81 #include <sys/cdefs.h>
  82
  83 #ifndef __ASSEMBLER__
  84 __BEGIN_DECLS
  85 unsigned long   htonl __P((unsigned long));
  86 unsigned short  htons __P((unsigned short));
  87 unsigned long   ntohl __P((unsigned long));
  88 unsigned short  ntohs __P((unsigned short));
  89 __END_DECLS
  90 #endif /* __ASSEMBLER__ */
  91
  92 /*
  93  * Macros for network/external number representation conversion.
  94  */
  95 #if BYTE_ORDER == BIG_ENDIAN && !defined(lint)
  96 #define ntohl(x)        (x)
  97 #define ntohs(x)        (x)
  98 #define htonl(x)        (x)
  99 #define htons(x)        (x)
 100
 101 #define NTOHL(x)        (x)
 102 #define NTOHS(x)        (x)
 103 #define HTONL(x)        (x)
 104 #define HTONS(x)        (x)
 105
 106 #else
 107
 108 #include <machine/byte_order.h>
 109
 110 #define ntohl(x)        NXSwapBigLongToHost(x)
 111 #define ntohs(x)        NXSwapBigShortToHost(x)
 112 #define htonl(x)        NXSwapHostLongToBig(x)
 113 #define htons(x)        NXSwapHostShortToBig(x)
 114
 115 #define NTOHL(x)        (x) = ntohl((u_long)x)
 116 #define NTOHS(x)        (x) = ntohs((u_short)x)
 117 #define HTONL(x)        (x) = htonl((u_long)x)
 118 #define HTONS(x)        (x) = htons((u_short)x)
 119 #endif
 120 #endif /* defined(KERNEL) || !defined(_POSIX_SOURCE) */
 121 #endif /* !_PPC_ENDIAN_H_ */