4 #define UNIXWARE_FS_UNUSED 0
5 #define UNIXWARE_NUMSLICE 16
6 #define UNIXWARE_DISKMAGIC (0xCA5E600D)
7 #define UNIXWARE_DISKMAGIC2 (0x600DDEEE)
9 struct unixware_slice {
10 unsigned short s_label; /* label */
11 unsigned short s_flags; /* permission flags */
12 unsigned int start_sect; /* starting sector */
13 unsigned int nr_sects; /* number of sectors in slice */
16 struct unixware_disklabel {
17 unsigned int d_type; /* drive type */
18 unsigned char d_magic[4]; /* the magic number */
19 unsigned int d_version; /* version number */
20 char d_serial[12]; /* serial number of the device */
21 unsigned int d_ncylinders; /* # of data cylinders per device */
22 unsigned int d_ntracks; /* # of tracks per cylinder */
23 unsigned int d_nsectors; /* # of data sectors per track */
24 unsigned int d_secsize; /* # of bytes per sector */
25 unsigned int d_part_start; /* # of first sector of this partition */
26 unsigned int d_unknown1[12]; /* ? */
27 unsigned int d_alt_tbl; /* byte offset of alternate table */
28 unsigned int d_alt_len; /* byte length of alternate table */
29 unsigned int d_phys_cyl; /* # of physical cylinders per device */
30 unsigned int d_phys_trk; /* # of physical tracks per cylinder */
31 unsigned int d_phys_sec; /* # of physical sectors per track */
32 unsigned int d_phys_bytes; /* # of physical bytes per sector */
33 unsigned int d_unknown2; /* ? */
34 unsigned int d_unknown3; /* ? */
35 unsigned int d_pad[8]; /* pad */
37 struct unixware_vtoc {
38 unsigned char v_magic[4]; /* the magic number */
39 unsigned int v_version; /* version number */
40 char v_name[8]; /* volume name */
41 unsigned short v_nslices; /* # of slices */
42 unsigned short v_unknown1; /* ? */
43 unsigned int v_reserved[10]; /* reserved */
45 v_slice[UNIXWARE_NUMSLICE]; /* slice headers */
51 read_unixware_pt(int fd, struct slice all, struct slice *sp, int ns) {
52 struct unixware_disklabel *l;
53 struct unixware_slice *p;
54 unsigned int offset = all.start;
58 bp = getblock(fd, offset+29); /* 1 sector suffices */
62 l = (struct unixware_disklabel *) bp;
63 if (four2int(l->d_magic) != UNIXWARE_DISKMAGIC ||
64 four2int(l->vtoc.v_magic) != UNIXWARE_DISKMAGIC2)
67 p = &l->vtoc.v_slice[1]; /* slice 0 is the whole disk. */
68 while (p - &l->vtoc.v_slice[0] < UNIXWARE_NUMSLICE) {
69 if (p->s_label == UNIXWARE_FS_UNUSED)
72 sp[n].start = p->start_sect;
73 sp[n].size = p->nr_sects;
77 "unixware_partition: too many slices\n");