2003-04-12 08:34:40 +00:00
|
|
|
/*-
|
|
|
|
|
* Copyright (c) 2003 Poul-Henning Kamp
|
|
|
|
|
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
|
|
|
|
*
|
|
|
|
|
* Functions to encode or decode struct dos_partition into a bytestream
|
|
|
|
|
* of correct endianess and packing. These functions do no validation
|
|
|
|
|
* or sanity checking, they only pack/unpack the fields correctly.
|
|
|
|
|
*
|
|
|
|
|
* NB! This file must be usable both in kernel and userland.
|
|
|
|
|
*/
|
|
|
|
|
|
2003-06-11 06:49:16 +00:00
|
|
|
#include <sys/cdefs.h>
|
|
|
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
|
|
2003-04-12 08:34:40 +00:00
|
|
|
#include <sys/types.h>
|
|
|
|
|
#include <sys/diskmbr.h>
|
|
|
|
|
#include <sys/endian.h>
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
dos_partition_dec(void const *pp, struct dos_partition *d)
|
|
|
|
|
{
|
|
|
|
|
unsigned char const *p = pp;
|
|
|
|
|
|
|
|
|
|
d->dp_flag = p[0];
|
|
|
|
|
d->dp_shd = p[1];
|
|
|
|
|
d->dp_ssect = p[2];
|
|
|
|
|
d->dp_scyl = p[3];
|
|
|
|
|
d->dp_typ = p[4];
|
|
|
|
|
d->dp_ehd = p[5];
|
|
|
|
|
d->dp_esect = p[6];
|
|
|
|
|
d->dp_ecyl = p[7];
|
|
|
|
|
d->dp_start = le32dec(p + 8);
|
|
|
|
|
d->dp_size = le32dec(p + 12);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
dos_partition_enc(void *pp, struct dos_partition *d)
|
|
|
|
|
{
|
|
|
|
|
unsigned char *p = pp;
|
|
|
|
|
|
|
|
|
|
p[0] = d->dp_flag;
|
|
|
|
|
p[1] = d->dp_shd;
|
|
|
|
|
p[2] = d->dp_ssect;
|
|
|
|
|
p[3] = d->dp_scyl;
|
|
|
|
|
p[4] = d->dp_typ;
|
|
|
|
|
p[5] = d->dp_ehd;
|
|
|
|
|
p[6] = d->dp_esect;
|
|
|
|
|
p[7] = d->dp_ecyl;
|
|
|
|
|
le32enc(p + 8, d->dp_start);
|
|
|
|
|
le32enc(p + 12, d->dp_size);
|
|
|
|
|
}
|
