2006-12-06 17:25:43 -06:00
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#include <stdio.h>
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#include "partx.h"
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#define UNIXWARE_FS_UNUSED 0
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#define UNIXWARE_NUMSLICE 16
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2006-12-06 17:25:54 -06:00
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#define UNIXWARE_DISKMAGIC (0xCA5E600D)
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#define UNIXWARE_DISKMAGIC2 (0x600DDEEE)
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2006-12-06 17:25:43 -06:00
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struct unixware_slice {
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unsigned short s_label; /* label */
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unsigned short s_flags; /* permission flags */
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unsigned int start_sect; /* starting sector */
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unsigned int nr_sects; /* number of sectors in slice */
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};
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struct unixware_disklabel {
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unsigned int d_type; /* drive type */
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unsigned char d_magic[4]; /* the magic number */
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unsigned int d_version; /* version number */
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char d_serial[12]; /* serial number of the device */
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unsigned int d_ncylinders; /* # of data cylinders per device */
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unsigned int d_ntracks; /* # of tracks per cylinder */
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unsigned int d_nsectors; /* # of data sectors per track */
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unsigned int d_secsize; /* # of bytes per sector */
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unsigned int d_part_start; /* # of first sector of this partition */
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unsigned int d_unknown1[12]; /* ? */
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unsigned int d_alt_tbl; /* byte offset of alternate table */
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unsigned int d_alt_len; /* byte length of alternate table */
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unsigned int d_phys_cyl; /* # of physical cylinders per device */
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unsigned int d_phys_trk; /* # of physical tracks per cylinder */
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unsigned int d_phys_sec; /* # of physical sectors per track */
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unsigned int d_phys_bytes; /* # of physical bytes per sector */
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unsigned int d_unknown2; /* ? */
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unsigned int d_unknown3; /* ? */
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unsigned int d_pad[8]; /* pad */
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struct unixware_vtoc {
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unsigned char v_magic[4]; /* the magic number */
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unsigned int v_version; /* version number */
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char v_name[8]; /* volume name */
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unsigned short v_nslices; /* # of slices */
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unsigned short v_unknown1; /* ? */
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unsigned int v_reserved[10]; /* reserved */
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struct unixware_slice
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v_slice[UNIXWARE_NUMSLICE]; /* slice headers */
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} vtoc;
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}; /* 408 */
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int
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read_unixware_pt(int fd, struct slice all, struct slice *sp, int ns) {
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struct unixware_disklabel *l;
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struct unixware_slice *p;
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unsigned int offset = all.start;
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char *bp;
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int n = 0;
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bp = getblock(fd, offset+29); /* 1 sector suffices */
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if (bp == NULL)
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return -1;
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l = (struct unixware_disklabel *) bp;
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if (four2int(l->d_magic) != UNIXWARE_DISKMAGIC ||
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four2int(l->vtoc.v_magic) != UNIXWARE_DISKMAGIC2)
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return -1;
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p = &l->vtoc.v_slice[1]; /* slice 0 is the whole disk. */
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while (p - &l->vtoc.v_slice[0] < UNIXWARE_NUMSLICE) {
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if (p->s_label == UNIXWARE_FS_UNUSED)
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/* nothing */;
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else if (n < ns) {
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sp[n].start = p->start_sect;
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sp[n].size = p->nr_sects;
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n++;
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} else {
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fprintf(stderr,
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"unixware_partition: too many slices\n");
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break;
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}
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p++;
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}
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return n;
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}
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