65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
/* $NetBSD: bswap.h,v 1.1 2010/01/05 15:45:26 tsutsui Exp $ */
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/*-
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* Copyright (c) 2009 Izumi Tsutsui. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#if HAVE_NBTOOL_CONFIG_H
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#ifndef BYTE_ORDER
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#ifdef WORDS_BIGENDIAN
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif
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#endif
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#ifndef TARGET_BYTE_ORDER
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#define TARGET_BYTE_ORDER BYTE_ORDER
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#endif
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#if TARGET_BYTE_ORDER != BYTE_ORDER
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#define htotarget16(x) bswap16(x)
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#define target16toh(x) bswap16(x)
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#define htotarget32(x) bswap32(x)
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#define target32toh(x) bswap32(x)
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#define dkcksum_target(lp) dkcksum_re(lp)
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void htotargetlabel(struct disklabel *, struct disklabel *);
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void targettohlabel(struct disklabel *, struct disklabel *);
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uint16_t dkcksum_re(struct disklabel *);
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#else
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#define htotarget16(x) (x)
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#define target16toh(x) (x)
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#define htotarget32(x) (x)
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#define target32toh(x) (x)
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#define dkcksum_target(lp) dkcksum(lp)
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#define htotargetlabel(tlp, hlp) \
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do {*(tlp) = *(hlp);} while (/* CONSTCOND */0)
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#define targettohlabel(hlp, tlp) \
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do {*(hlp) = *(tlp);} while (/* CONSTCOND */0)
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#endif
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