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freebsd/lib/libdisk/write_disk.c
Poul-Henning Kamp 532dd2fa86 Untangle #ifdefs in the write-end of things by giving each arch its
own file and own copy of WriteDisk() to do things in.

This should have happened years ago, instead of adding #ifdefs all
over the place.
2002-10-23 19:52:32 +00:00

75 lines
2.0 KiB
C

/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/disklabel.h>
#include <sys/diskslice.h>
#include <paths.h>
#include "libdisk.h"
void
Fill_Disklabel(struct disklabel *dl, const struct disk *new, const struct disk *old, const struct chunk *c1)
{
struct chunk *c2;
int j;
memset(dl, 0, sizeof *dl);
for(c2 = c1->part; c2; c2 = c2->next) {
if (c2->type == unused) continue;
if (!strcmp(c2->name, "X")) continue;
j = c2->name[strlen(c2->name) - 1] - 'a';
if (j < 0 || j >= MAXPARTITIONS || j == RAW_PART)
continue;
dl->d_partitions[j].p_size = c2->size;
dl->d_partitions[j].p_offset = c2->offset;
dl->d_partitions[j].p_fstype = c2->subtype;
}
dl->d_bbsize = BBSIZE;
/*
* Add in defaults for superblock size, interleave, and rpms
*/
dl->d_sbsize = 0;
strcpy(dl->d_typename, c1->name);
dl->d_secsize = 512;
dl->d_secperunit = new->chunks->size;
dl->d_ncylinders = new->bios_cyl;
dl->d_ntracks = new->bios_hd;
dl->d_nsectors = new->bios_sect;
dl->d_secpercyl = dl->d_ntracks * dl->d_nsectors;
dl->d_npartitions = MAXPARTITIONS;
dl->d_type = new->name[0] == 's' || new->name[0] == 'd' ||
new->name[0] == 'o' ? DTYPE_SCSI : DTYPE_ESDI;
dl->d_partitions[RAW_PART].p_size = c1->size;
dl->d_partitions[RAW_PART].p_offset = c1->offset;
dl->d_rpm = 3600;
dl->d_interleave = 1;
dl->d_magic = DISKMAGIC;
dl->d_magic2 = DISKMAGIC;
dl->d_checksum = dkcksum(dl);
return;
}