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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996, 1997
* Sleepycat Software. All rights reserved.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)db_byteorder.c 10.4 (Sleepycat) 9/4/97";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>
#ifdef HAVE_ENDIAN_H
#include <endian.h>
#if BYTE_ORDER == BIG_ENDIAN
#define WORDS_BIGENDIAN 1
#endif
#endif
#include <errno.h>
#endif
#include "db_int.h"
#include "common_ext.h"
/*
* __db_byteorder --
* Return if we need to do byte swapping, checking for illegal
* values.
*
* PUBLIC: int __db_byteorder __P((DB_ENV *, int));
*/
int
__db_byteorder(dbenv, lorder)
DB_ENV *dbenv;
int lorder;
{
switch (lorder) {
case 0:
break;
case 1234:
#if defined(WORDS_BIGENDIAN)
return (DB_SWAPBYTES);
#else
break;
#endif
case 4321:
#if defined(WORDS_BIGENDIAN)
break;
#else
return (DB_SWAPBYTES);
#endif
default:
__db_err(dbenv,
"illegal byte order, only big and little-endian supported");
return (EINVAL);
}
return (0);
}
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