usr/src/sys/hp300/include/endian.h

/*
 * Copyright (c) 1987, 1991, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)endian.h    8.1 (Berkeley) %G%
 */

#ifndef _ENDIAN_H_
#define _ENDIAN_H_

/*
 * Define the order of 32-bit words in 64-bit words.
 */
#define _QUAD_HIGHWORD 0
#define _QUAD_LOWWORD 1

#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      BIG_ENDIAN

#include <sys/cdefs.h>

__BEGIN_DECLS
unsigned long   htonl __P((unsigned long));
unsigned short  htons __P((unsigned short));
unsigned long   ntohl __P((unsigned long));
unsigned short  ntohs __P((unsigned short));
__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((u_long)x)
#define NTOHS(x)        (x) = ntohs((u_short)x)
#define HTONL(x)        (x) = htonl((u_long)x)
#define HTONS(x)        (x) = htons((u_short)x)
#endif
#endif /* !_POSIX_SOURCE */
#endif /* !_ENDIAN_H_ */