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#include <stdio.h>
#include "partx.h"
#define UNIXWARE_FS_UNUSED 0
#define UNIXWARE_NUMSLICE 16
#define UNIXWARE_DISKMAGIC (0xCA5E600D)
#define UNIXWARE_DISKMAGIC2 (0x600DDEEE)
struct unixware_slice {
unsigned short s_label; /* label */
unsigned short s_flags; /* permission flags */
unsigned int start_sect; /* starting sector */
unsigned int nr_sects; /* number of sectors in slice */
};
struct unixware_disklabel {
unsigned int d_type; /* drive type */
unsigned char d_magic[4]; /* the magic number */
unsigned int d_version; /* version number */
char d_serial[12]; /* serial number of the device */
unsigned int d_ncylinders; /* # of data cylinders per device */
unsigned int d_ntracks; /* # of tracks per cylinder */
unsigned int d_nsectors; /* # of data sectors per track */
unsigned int d_secsize; /* # of bytes per sector */
unsigned int d_part_start; /* # of first sector of this partition */
unsigned int d_unknown1[12]; /* ? */
unsigned int d_alt_tbl; /* byte offset of alternate table */
unsigned int d_alt_len; /* byte length of alternate table */
unsigned int d_phys_cyl; /* # of physical cylinders per device */
unsigned int d_phys_trk; /* # of physical tracks per cylinder */
unsigned int d_phys_sec; /* # of physical sectors per track */
unsigned int d_phys_bytes; /* # of physical bytes per sector */
unsigned int d_unknown2; /* ? */
unsigned int d_unknown3; /* ? */
unsigned int d_pad[8]; /* pad */
struct unixware_vtoc {
unsigned char v_magic[4]; /* the magic number */
unsigned int v_version; /* version number */
char v_name[8]; /* volume name */
unsigned short v_nslices; /* # of slices */
unsigned short v_unknown1; /* ? */
unsigned int v_reserved[10]; /* reserved */
struct unixware_slice
v_slice[UNIXWARE_NUMSLICE]; /* slice headers */
} vtoc;
}; /* 408 */
int
read_unixware_pt(int fd, struct slice all, struct slice *sp, int ns) {
struct unixware_disklabel *l;
struct unixware_slice *p;
unsigned int offset = all.start;
char *bp;
int n = 0;
bp = getblock(fd, offset+29); /* 1 sector suffices */
if (bp == NULL)
return -1;
l = (struct unixware_disklabel *) bp;
if (four2int(l->d_magic) != UNIXWARE_DISKMAGIC ||
four2int(l->vtoc.v_magic) != UNIXWARE_DISKMAGIC2)
return -1;
p = &l->vtoc.v_slice[1]; /* slice 0 is the whole disk. */
while (p - &l->vtoc.v_slice[0] < UNIXWARE_NUMSLICE) {
if (p->s_label == UNIXWARE_FS_UNUSED)
/* nothing */;
else if (n < ns) {
sp[n].start = p->start_sect;
sp[n].size = p->nr_sects;
n++;
} else {
fprintf(stderr,
"unixware_partition: too many slices\n");
break;
}
p++;
}
return n;
}
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