usr/src/include/disktab.h

/*
 * Copyright (c) 1983 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *      @(#)disktab.h   5.3 (Berkeley) %G%
 */

/*
 * Disk description table, see disktab(5)
 */
#define DISKTAB         "/etc/disktab"

struct  disktab {
        char    *d_name;                /* drive name */
        char    *d_type;                /* drive type */
        int     d_secsize;              /* sector size in bytes */
        int     d_ntracks;              /* # tracks/cylinder */
        int     d_nsectors;             /* # sectors/track */
        int     d_ncylinders;           /* # cylinders */
        int     d_rpm;                  /* revolutions/minute */
        int     d_badsectforw;          /* supports DEC bad144 std */
        int     d_sectoffset;           /* use sect rather than cyl offsets */
        struct  partition {
                int     p_size;         /* #sectors in partition */
                short   p_bsize;        /* block size in bytes */
                short   p_fsize;        /* frag size in bytes */
        } d_partitions[8];
};

struct  disktab *getdiskbyname();