| #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; |
| unsigned 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; |
| } |
