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/* Copyright (c) 1991 by NeXT Computer, Inc.
*
* File: bsd/dev/disk_label.h - NeXT disk label definition.
*
* HISTORY
* 28-Mar-92 Doug Mitchell at NeXT
* Split out from <bsd/dev/disk.h>.
*/
#ifndef _BSD_DEV_DISK_LABEL_
#define _BSD_DEV_DISK_LABEL_
#import <bsd/sys/disktab.h>
#define NLABELS 4 /* # of labels on a disk */
#define MAXLBLLEN 24 /* dl_label[] size */
#define NBAD 1670 /* sized to make label ~= 8KB */
/*
* if dl_version >= DL_V3 then the bad block table is relocated
* to a structure separate from the disk label.
*/
typedef union {
unsigned short DL_v3_checksum;
int DL_bad[NBAD]; /* block number that is bad */
} dl_un_t;
typedef struct disk_label {
int dl_version; /* label version number*/
int dl_label_blkno; /* block # where this label is*/
int dl_size; /* size of media area (sectors)*/
char dl_label[MAXLBLLEN]; /* media label*/
unsigned dl_flags; /* flags (see DL_xxx, below)*/
unsigned dl_tag; /* volume tag*/
struct disktab dl_dt; /* common info in disktab*/
dl_un_t dl_un;
unsigned short dl_checksum; /* ones complement checksum*/
/* add things here so dl_checksum stays in a fixed place */
} disk_label_t;
/*
* Known label versions.
*/
#define DL_V1 0x4e655854 /* version #1: "NeXT" */
#define DL_V2 0x646c5632 /* version #2: "dlV2" */
#define DL_V3 0x646c5633 /* version #3: "dlV3" */
#define DL_VERSION DL_V3 /* default version */
/*
* dl_flags values
*/
#define DL_UNINIT 0x80000000 /* label is uninitialized */
/*
* Aliases for disktab fields
*/
#define dl_name dl_dt.d_name
#define dl_type dl_dt.d_type
#define dl_part dl_dt.d_partitions
#define dl_front dl_dt.d_front
#define dl_back dl_dt.d_back
#define dl_ngroups dl_dt.d_ngroups
#define dl_ag_size dl_dt.d_ag_size
#define dl_ag_alts dl_dt.d_ag_alts
#define dl_ag_off dl_dt.d_ag_off
#define dl_secsize dl_dt.d_secsize
#define dl_ncyl dl_dt.d_ncylinders
#define dl_nsect dl_dt.d_nsectors
#define dl_ntrack dl_dt.d_ntracks
#define dl_rpm dl_dt.d_rpm
#define dl_bootfile dl_dt.d_bootfile
#define dl_boot0_blkno dl_dt.d_boot0_blkno
#define dl_hostname dl_dt.d_hostname
#define dl_rootpartition dl_dt.d_rootpartition
#define dl_rwpartition dl_dt.d_rwpartition
/*
* Other aliases
*/
#define dl_v3_checksum dl_un.DL_v3_checksum
#define dl_bad dl_un.DL_bad
#endif
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.