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NetBSD/sbin/disklabel/bswap.h

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Make disklabel a MI tool. It will use MACHINE/MACHINE_ARCH to determine the disklabel params as well as allowing command-line options of -M <machine> and -B {le,be} to specify MACHINE and byteorder to be used.
2013-05-03 20:05:11 +04:00
/* $NetBSD: bswap.h,v 1.2 2013/05/03 16:05:12 matt Exp $ */
Add necessary byteswap ops for tools disklabel(8) used with -F option (treating a target disk as a regular file and suppressing ioctl(2)s) on reading/writing disklabel in a target file. This allows cross build enviroment creating bootable disk images for targets in different endian. No functional changes to native (non-tools) disklabel(8) command. Closes PR toolchain/42357.
2010-01-05 18:45:26 +03:00
/*-
* Copyright (c) 2009 Izumi Tsutsui. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/types.h>
#if HAVE_NBTOOL_CONFIG_H
#ifndef BYTE_ORDER
#ifdef WORDS_BIGENDIAN
#define BYTE_ORDER BIG_ENDIAN
#else
#define BYTE_ORDER LITTLE_ENDIAN
#endif
#endif
Make disklabel a MI tool. It will use MACHINE/MACHINE_ARCH to determine the disklabel params as well as allowing command-line options of -M <machine> and -B {le,be} to specify MACHINE and byteorder to be used.
2013-05-03 20:05:11 +04:00
#else
#include <sys/endian.h>
Add necessary byteswap ops for tools disklabel(8) used with -F option (treating a target disk as a regular file and suppressing ioctl(2)s) on reading/writing disklabel in a target file. This allows cross build enviroment creating bootable disk images for targets in different endian. No functional changes to native (non-tools) disklabel(8) command. Closes PR toolchain/42357.
2010-01-05 18:45:26 +03:00
#endif
Make disklabel a MI tool. It will use MACHINE/MACHINE_ARCH to determine the disklabel params as well as allowing command-line options of -M <machine> and -B {le,be} to specify MACHINE and byteorder to be used.
2013-05-03 20:05:11 +04:00
extern int bswap_p;
extern u_int maxpartitions;
Add necessary byteswap ops for tools disklabel(8) used with -F option (treating a target disk as a regular file and suppressing ioctl(2)s) on reading/writing disklabel in a target file. This allows cross build enviroment creating bootable disk images for targets in different endian. No functional changes to native (non-tools) disklabel(8) command. Closes PR toolchain/42357.
2010-01-05 18:45:26 +03:00
Make disklabel a MI tool. It will use MACHINE/MACHINE_ARCH to determine the disklabel params as well as allowing command-line options of -M <machine> and -B {le,be} to specify MACHINE and byteorder to be used.
2013-05-03 20:05:11 +04:00
#define htotarget16(x) (bswap_p ? bswap16(x) : (x))
#define target16toh(x) (bswap_p ? bswap16(x) : (x))
#define htotarget32(x) (bswap_p ? bswap32(x) : (x))
#define target32toh(x) (bswap_p ? bswap32(x) : (x))
Add necessary byteswap ops for tools disklabel(8) used with -F option (treating a target disk as a regular file and suppressing ioctl(2)s) on reading/writing disklabel in a target file. This allows cross build enviroment creating bootable disk images for targets in different endian. No functional changes to native (non-tools) disklabel(8) command. Closes PR toolchain/42357.
2010-01-05 18:45:26 +03:00
Make disklabel a MI tool. It will use MACHINE/MACHINE_ARCH to determine the disklabel params as well as allowing command-line options of -M <machine> and -B {le,be} to specify MACHINE and byteorder to be used.
2013-05-03 20:05:11 +04:00
void htotargetlabel(struct disklabel *, const struct disklabel *);
void targettohlabel(struct disklabel *, const struct disklabel *);
uint16_t dkcksum_target(struct disklabel *);