64 lines
1.1 KiB
C
64 lines
1.1 KiB
C
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1996, 1997, 1998
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* Sleepycat Software. All rights reserved.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "@(#)db_byteorder.c 10.5 (Sleepycat) 4/10/98";
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#endif /* not lint */
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#ifdef HAVE_ENDIAN_H
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#include <endian.h>
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#if BYTE_ORDER == BIG_ENDIAN
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#define WORDS_BIGENDIAN 1
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#endif
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#endif
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#include <errno.h>
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#endif
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#include "db_int.h"
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#include "common_ext.h"
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/*
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* __db_byteorder --
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* Return if we need to do byte swapping, checking for illegal
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* values.
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*
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* PUBLIC: int __db_byteorder __P((DB_ENV *, int));
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*/
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int
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__db_byteorder(dbenv, lorder)
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DB_ENV *dbenv;
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int lorder;
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{
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switch (lorder) {
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case 0:
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break;
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case 1234:
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#if defined(WORDS_BIGENDIAN)
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return (DB_SWAPBYTES);
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#else
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break;
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#endif
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case 4321:
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#if defined(WORDS_BIGENDIAN)
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break;
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#else
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return (DB_SWAPBYTES);
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#endif
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default:
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__db_err(dbenv,
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"illegal byte order, only big and little-endian supported");
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return (EINVAL);
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}
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return (0);
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}
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