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79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/*-
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* Copyright (c) 2003 TAKAHASHI Yoshihiro
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* 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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/diskpc98.h>
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#include <sys/endian.h>
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void
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pc98_partition_dec(void const *pp, struct pc98_partition *d)
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{
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unsigned char const *ptr = pp;
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int i;
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d->dp_mid = ptr[0];
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d->dp_sid = ptr[1];
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d->dp_dum1 = ptr[2];
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d->dp_dum2 = ptr[3];
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d->dp_ipl_sct = ptr[4];
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d->dp_ipl_head = ptr[5];
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d->dp_ipl_cyl = le16dec(ptr + 6);
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d->dp_ssect = ptr[8];
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d->dp_shd = ptr[9];
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d->dp_scyl = le16dec(ptr + 10);
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d->dp_esect = ptr[12];
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d->dp_ehd = ptr[13];
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d->dp_ecyl = le16dec(ptr + 14);
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for (i = 0; i < sizeof (d->dp_name); i++)
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d->dp_name[i] = ptr[16 + i];
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}
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void
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pc98_partition_enc(void *pp, struct pc98_partition *d)
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{
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unsigned char *ptr = pp;
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int i;
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ptr[0] = d->dp_mid;
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ptr[1] = d->dp_sid;
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ptr[2] = d->dp_dum1;
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ptr[3] = d->dp_dum2;
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ptr[4] = d->dp_ipl_sct;
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ptr[5] = d->dp_ipl_head;
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le16enc(ptr + 6, d->dp_ipl_cyl);
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ptr[8] = d->dp_ssect;
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ptr[9] = d->dp_shd;
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le16enc(ptr + 10, d->dp_scyl);
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ptr[12] = d->dp_esect;
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ptr[13] = d->dp_ehd;
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le16enc(ptr + 14, d->dp_ecyl);
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for (i = 0; i < sizeof (d->dp_name); i++)
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ptr[16 + i] = d->dp_name[i];
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}
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