03516cfeb0
o Unify <machine/endian.h>'s across all architectures. o Make bswapXX() functions use a different spelling of u_int16_t and friends to reduce namespace pollution. The bswapXX() functions don't actually exist, but we'll probably import these at some point. Atleast one driver (if_de) depends on bswapXX() for big endian cases. o Deprecate byteorder(3) prototypes from <sys/types.h>, these are now prototyped indirectly in <arpa/inet.h>. o Deprecate in_addr_t and in_port_t typedefs in <sys/types.h>, these are now typedef'd in <arpa/inet.h>. o Change byteorder(3) prototypes to use standards compliant uint32_t (spelled __uint32_t to reduce namespace pollution). o Document new preferred headers and standards compliance. Discussed with: bde PR: 29946 Reviewed by: bmilekic
97 lines
3.3 KiB
C
97 lines
3.3 KiB
C
/* $FreeBSD$ */
|
|
/* From: NetBSD: endian.h,v 1.5 1997/10/09 15:42:19 bouyer Exp */
|
|
|
|
/*
|
|
* Copyright (c) 1987, 1991, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)endian.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
#ifndef _ENDIAN_H_
|
|
#define _ENDIAN_H_
|
|
|
|
/*
|
|
* Define the order of 32-bit words in 64-bit words.
|
|
*/
|
|
#define _QUAD_HIGHWORD 1
|
|
#define _QUAD_LOWWORD 0
|
|
|
|
#ifndef _POSIX_SOURCE
|
|
/*
|
|
* Definitions for byte order, according to byte significance from low
|
|
* address to high.
|
|
*/
|
|
#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
|
|
#define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
|
|
#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */
|
|
|
|
#define BYTE_ORDER LITTLE_ENDIAN
|
|
|
|
#ifndef _KERNEL
|
|
#include <sys/cdefs.h>
|
|
#endif
|
|
#include <machine/ansi.h>
|
|
|
|
__BEGIN_DECLS
|
|
__uint32_t htonl __P((__uint32_t));
|
|
__uint16_t htons __P((__uint16_t));
|
|
__uint32_t ntohl __P((__uint32_t));
|
|
__uint16_t ntohs __P((__uint16_t));
|
|
__uint16_t bswap16 __P((__uint16_t));
|
|
__uint32_t bswap32 __P((__uint32_t));
|
|
__uint64_t bswap64 __P((__uint64_t));
|
|
__END_DECLS
|
|
|
|
/*
|
|
* Macros for network/external number representation conversion.
|
|
*/
|
|
#if BYTE_ORDER == BIG_ENDIAN && !defined(lint)
|
|
#define ntohl(x) (x)
|
|
#define ntohs(x) (x)
|
|
#define htonl(x) (x)
|
|
#define htons(x) (x)
|
|
|
|
#define NTOHL(x) (x)
|
|
#define NTOHS(x) (x)
|
|
#define HTONL(x) (x)
|
|
#define HTONS(x) (x)
|
|
|
|
#else
|
|
|
|
#define NTOHL(x) (x) = ntohl((__uint32_t)x)
|
|
#define NTOHS(x) (x) = ntohs((__uint16_t)x)
|
|
#define HTONL(x) (x) = htonl((__uint32_t)x)
|
|
#define HTONS(x) (x) = htons((__uint16_t)x)
|
|
#endif
|
|
#endif /* !_POSIX_SOURCE */
|
|
#endif /* !_ENDIAN_H_ */
|