initial import of NetBSD tree

3 files changed, 626 insertions, 0 deletions

diff --git a/usr.sbin/diskpart/Makefile b/usr.sbin/diskpart/Makefile
new file mode 100644
index 00000000000..c45f8660608
--- /dev/null
+++ b/usr.sbin/diskpart/Makefile
@@ -0,0 +1,7 @@
+#	from: @(#)Makefile	5.3 (Berkeley) 5/11/90
+#	$Id: Makefile,v 1.1 1995/10/18 08:47:32 deraadt Exp $
+
+PROG=	diskpart
+MAN=	diskpart.8
+
+.include <bsd.prog.mk>
diff --git a/usr.sbin/diskpart/diskpart.8 b/usr.sbin/diskpart/diskpart.8
new file mode 100644
index 00000000000..cdf18869616
--- /dev/null
+++ b/usr.sbin/diskpart/diskpart.8
@@ -0,0 +1,144 @@
+.\" Copyright (c) 1983, 1991 Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)diskpart.8	6.6 (Berkeley) 3/16/91
+.\"	$Id: diskpart.8,v 1.1 1995/10/18 08:47:32 deraadt Exp $
+.\"
+.Dd March 16, 1991
+.Dt DISKPART 8
+.Os BSD 4
+.Sh NAME
+.Nm diskpart
+.Nd calculate default disk partition sizes
+.Sh SYNOPSIS
+.Nm diskpart
+.Op Fl p
+.Op Fl d
+.Op Fl s Ar size
+.Ar disk-type
+.Sh DESCRIPTION
+.Nm Diskpart
+is used to calculate the disk partition sizes based on the
+default rules used at Berkeley.
+.Pp
+Available options and operands:
+.Bl -tag -width Fl
+.It Fl p
+Tables suitable for inclusion in a device driver
+are produced.
+.It Fl d
+An entry suitable for inclusion in the disk
+description file
+.Pa /etc/disktab
+is generated; for example,
+.Xr disktab 5 .
+.It Fl s Ar size
+The size of the disk may be limited to
+.Ar size
+with the
+.Fl s
+option.
+.El
+.Pp
+On disks that use
+.Xr bad144 8
+type of
+bad-sector forwarding,
+space is normally left in the last partition on the disk
+for a bad sector forwarding table, although this space
+is not reflected in the tables produced.  The space reserved
+is one track for the replicated copies of the table and
+sufficient tracks to hold a pool of 126 sectors to which bad sectors
+are mapped.  For more information, see 
+.Xr bad144 8 .
+The
+.Fl s
+option is intended for other controllers which reserve some space at the end
+of the disk for bad-sector replacements or other control areas,
+even if not a multiple of cylinders.
+.Pp
+The disk partition sizes are based on the total amount of
+space on the disk as given in the table below (all values
+are supplied in units of sectors).  The
+.Ql c
+partition
+is, by convention, used to access the entire physical disk.
+The device driver tables include
+the space reserved for the bad sector forwarding table in the
+.Ql c
+partition;
+those used in the disktab and default formats exclude reserved tracks.
+In normal operation, either the
+.Ql g
+partition is used, or the
+.Ql d ,
+.Ql e ,
+and
+.Ql f
+partitions are used.  The
+.Ql g
+and
+.Ql f
+partitions
+are variable-sized, occupying whatever space remains after allocation
+of the fixed sized partitions.
+If the disk is smaller than 20 Megabytes, then
+.Nm diskpart
+aborts with the message
+.Dq Li disk too small, calculate by hand .
+.Bl -column Partition 20-60\ MB 61-205\ MB 206-355\ MB 356+\ MB
+Partition	20-60 MB	61-205 MB	206-355 MB	356+ MB
+a	15884	15884	15884	15884
+b	10032	33440	33440	66880
+d	15884	15884	15884	15884
+e	unused	55936	55936	307200
+h	unused	unused	291346	291346
+.El
+.Pp
+If an unknown disk type is specified, 
+.Nm diskpart
+will prompt for the required disk geometry information.
+.Sh SEE ALSO
+.Xr disktab 5 ,
+.Xr bad144 8
+.Sh BUGS
+Most default partition sizes are based on historical artifacts
+(like the RP06), and may result in unsatisfactory layouts.
+.Pp
+When using the
+.Fl d
+flag, alternate disk names are not included
+in the output.
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.2 .
diff --git a/usr.sbin/diskpart/diskpart.c b/usr.sbin/diskpart/diskpart.c
new file mode 100644
index 00000000000..b885d0529d2
--- /dev/null
+++ b/usr.sbin/diskpart/diskpart.c
@@ -0,0 +1,475 @@
+/*
+ * Copyright (c) 1983, 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1983, 1988 Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+/*static char sccsid[] = "from: @(#)diskpart.c	5.11 (Berkeley) 6/1/90";*/
+static char rcsid[] = "$Id: diskpart.c,v 1.1 1995/10/18 08:47:32 deraadt Exp $";
+#endif /* not lint */
+
+/*
+ * Program to calculate standard disk partition sizes.
+ */
+#include <sys/param.h>
+#define DKTYPENAMES
+#include <sys/disklabel.h>
+
+#include <stdio.h>
+#include <ctype.h>
+
+#define	for_now			/* show all of `c' partition for disklabel */
+#define	NPARTITIONS	8
+#define	PART(x)		(x - 'a')
+
+/*
+ * Default partition sizes, where they exist.
+ */
+#define	NDEFAULTS	4
+int	defpart[NDEFAULTS][NPARTITIONS] = {
+   { 15884, 66880, 0, 15884, 307200, 0, 0, 291346 },	/* ~ 356+ Mbytes */
+   { 15884, 33440, 0, 15884, 55936, 0, 0, 291346 },	/* ~ 206-355 Mbytes */
+   { 15884, 33440, 0, 15884, 55936, 0, 0, 0 },		/* ~ 61-205 Mbytes */
+   { 15884, 10032, 0, 15884, 0, 0, 0, 0 },		/* ~ 20-60 Mbytes */
+};
+
+/*
+ * Each array defines a layout for a disk;
+ * that is, the collection of partitions totally
+ * covers the physical space on a disk.
+ */
+#define	NLAYOUTS	3
+char	layouts[NLAYOUTS][NPARTITIONS] = {
+   { 'a', 'b', 'h', 'g' },
+   { 'a', 'b', 'h', 'd', 'e', 'f' },
+   { 'c' },
+};
+
+/*
+ * Default disk block and disk block fragment
+ * sizes for each file system.  Those file systems
+ * with zero block and frag sizes are special cases
+ * (e.g. swap areas or for access to the entire device).
+ */
+struct	partition defparam[NPARTITIONS] = {
+	{ 0, 0, 1024, FS_UNUSED, 8, 0 },		/* a */
+	{ 0, 0, 1024, FS_SWAP,   8, 0 },		/* b */
+	{ 0, 0, 1024, FS_UNUSED, 8, 0 },		/* c */
+	{ 0, 0,  512, FS_UNUSED, 8, 0 },		/* d */
+	{ 0, 0, 1024, FS_UNUSED, 8, 0 },		/* e */
+	{ 0, 0, 1024, FS_UNUSED, 8, 0 },		/* f */
+	{ 0, 0, 1024, FS_UNUSED, 8, 0 },		/* g */
+	{ 0, 0, 1024, FS_UNUSED, 8, 0 }			/* h */
+};
+
+/*
+ * Each disk has some space reserved for a bad sector
+ * forwarding table.  DEC standard 144 uses the first
+ * 5 even numbered sectors in the last track of the
+ * last cylinder for replicated storage of the bad sector
+ * table; another 126 sectors past this is needed as a
+ * pool of replacement sectors.
+ */
+int	badsecttable = 126;	/* # sectors */
+
+int	pflag;			/* print device driver partition tables */
+int	dflag;			/* print disktab entry */
+
+struct	disklabel *promptfordisk();
+
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	struct disklabel *dp;
+	register int curcyl, spc, def, part, layout, j;
+	int threshhold, numcyls[NPARTITIONS], startcyl[NPARTITIONS];
+	int totsize = 0;
+	char *lp, *tyname;
+
+	argc--, argv++;
+	if (argc < 1) {
+		fprintf(stderr,
+		    "usage: diskpart [ -p ] [ -d ] [ -s size ] disk-type\n");
+		exit(1);
+	}
+	if (argc > 0 && strcmp(*argv, "-p") == 0) {
+		pflag++;
+		argc--, argv++;
+	}
+	if (argc > 0 && strcmp(*argv, "-d") == 0) {
+		dflag++;
+		argc--, argv++;
+	}
+	if (argc > 1 && strcmp(*argv, "-s") == 0) {
+		totsize = atoi(argv[1]);
+		argc += 2, argv += 2;
+	}
+	dp = getdiskbyname(*argv);
+	if (dp == NULL) {
+		if (isatty(0))
+			dp = promptfordisk(*argv);
+		if (dp == NULL) {
+			fprintf(stderr, "%s: unknown disk type\n", *argv);
+			exit(2);
+		}
+	} else {
+		if (dp->d_flags & D_REMOVABLE)
+			tyname = "removable";
+		else if (dp->d_flags & D_RAMDISK)
+			tyname = "simulated";
+		else
+			tyname = "winchester";
+	}
+	spc = dp->d_secpercyl;
+	/*
+	 * Bad sector table contains one track for the replicated
+	 * copies of the table and enough full tracks preceding
+	 * the last track to hold the pool of free blocks to which
+	 * bad sectors are mapped.
+	 * If disk size was specified explicitly, use specified size.
+	 */
+	if (dp->d_type == DTYPE_SMD && dp->d_flags & D_BADSECT &&
+	    totsize == 0) {
+		badsecttable = dp->d_nsectors +
+		    roundup(badsecttable, dp->d_nsectors);
+		threshhold = howmany(spc, badsecttable);
+	} else {
+		badsecttable = 0;
+		threshhold = 0;
+	}
+	/*
+	 * If disk size was specified, recompute number of cylinders
+	 * that may be used, and set badsecttable to any remaining
+	 * fraction of the last cylinder.
+	 */
+	if (totsize != 0) {
+		dp->d_ncylinders = howmany(totsize, spc);
+		badsecttable = spc * dp->d_ncylinders - totsize;
+	}
+
+	/* 
+	 * Figure out if disk is large enough for
+	 * expanded swap area and 'd', 'e', and 'f'
+	 * partitions.  Otherwise, use smaller defaults
+	 * based on RK07.
+	 */
+	for (def = 0; def < NDEFAULTS; def++) {
+		curcyl = 0;
+		for (part = PART('a'); part < NPARTITIONS; part++)
+			curcyl += howmany(defpart[def][part], spc);
+		if (curcyl < dp->d_ncylinders - threshhold)
+			break;
+	}
+	if (def >= NDEFAULTS) {
+		fprintf(stderr, "%s: disk too small, calculate by hand\n",
+			*argv);
+		exit(3);
+	}
+
+	/*
+	 * Calculate number of cylinders allocated to each disk
+	 * partition.  We may waste a bit of space here, but it's
+	 * in the interest of (very backward) compatibility
+	 * (for mixed disk systems).
+	 */
+	for (curcyl = 0, part = PART('a'); part < NPARTITIONS; part++) {
+		numcyls[part] = 0;
+		if (defpart[def][part] != 0) {
+			numcyls[part] = howmany(defpart[def][part], spc);
+			curcyl += numcyls[part];
+		}
+	}
+	numcyls[PART('f')] = dp->d_ncylinders - curcyl;
+	numcyls[PART('g')] =
+		numcyls[PART('d')] + numcyls[PART('e')] + numcyls[PART('f')];
+	numcyls[PART('c')] = dp->d_ncylinders;
+	defpart[def][PART('f')] = numcyls[PART('f')] * spc - badsecttable;
+	defpart[def][PART('g')] = numcyls[PART('g')] * spc - badsecttable;
+	defpart[def][PART('c')] = numcyls[PART('c')] * spc;
+#ifndef for_now
+	if (totsize || !pflag)
+#else
+	if (totsize)
+#endif
+		defpart[def][PART('c')] -= badsecttable;
+
+	/*
+	 * Calculate starting cylinder number for each partition.
+	 * Note the 'h' partition is physically located before the
+	 * 'g' or 'd' partition.  This is reflected in the layout
+	 * arrays defined above.
+	 */
+	for (layout = 0; layout < NLAYOUTS; layout++) {
+		curcyl = 0;
+		for (lp = layouts[layout]; *lp != 0; lp++) {
+			startcyl[PART(*lp)] = curcyl;
+			curcyl += numcyls[PART(*lp)];
+		}
+	}
+
+	if (pflag) {
+		printf("}, %s_sizes[%d] = {\n", dp->d_typename, NPARTITIONS);
+		for (part = PART('a'); part < NPARTITIONS; part++) {
+			if (numcyls[part] == 0) {
+				printf("\t0,\t0,\n");
+				continue;
+			}
+			if (dp->d_type != DTYPE_MSCP) {
+			       printf("\t%d,\t%d,\t\t/* %c=cyl %d thru %d */\n",
+					defpart[def][part], startcyl[part],
+					'A' + part, startcyl[part],
+					startcyl[part] + numcyls[part] - 1);
+				continue;
+			}
+			printf("\t%d,\t%d,\t\t/* %c=sectors %d thru %d */\n",
+				defpart[def][part], spc * startcyl[part],
+				'A' + part, spc * startcyl[part],
+				spc * startcyl[part] + defpart[def][part] - 1);
+		}
+		exit(0);
+	}
+	if (dflag) {
+		int nparts;
+
+		/*
+		 * In case the disk is in the ``in-between'' range
+		 * where the 'g' partition is smaller than the 'h'
+		 * partition, reverse the frag sizes so the /usr partition
+		 * is always set up with a frag size larger than the
+		 * user's partition.
+		 */
+		if (defpart[def][PART('g')] < defpart[def][PART('h')]) {
+			int temp;
+
+			temp = defparam[PART('h')].p_fsize;
+			defparam[PART('h')].p_fsize =
+				defparam[PART('g')].p_fsize;
+			defparam[PART('g')].p_fsize = temp;
+		}
+		printf("%s:\\\n", dp->d_typename);
+		printf("\t:ty=%s:ns#%d:nt#%d:nc#%d:", tyname,
+			dp->d_nsectors, dp->d_ntracks, dp->d_ncylinders);
+		if (dp->d_secpercyl != dp->d_nsectors * dp->d_ntracks)
+			printf("sc#%d:", dp->d_secpercyl);
+		if (dp->d_type == DTYPE_SMD && dp->d_flags & D_BADSECT)
+			printf("sf:");
+		printf("\\\n\t:dt=%s:", dktypenames[dp->d_type]);
+		for (part = NDDATA - 1; part >= 0; part--)
+			if (dp->d_drivedata[part])
+				break;
+		for (j = 0; j <= part; j++)
+			printf("d%d#%d:", j, dp->d_drivedata[j]);
+		printf("\\\n");
+		for (nparts = 0, part = PART('a'); part < NPARTITIONS; part++)
+			if (defpart[def][part] != 0)
+				nparts++;
+		for (part = PART('a'); part < NPARTITIONS; part++) {
+			if (defpart[def][part] == 0)
+				continue;
+			printf("\t:p%c#%d:", 'a' + part, defpart[def][part]);
+			printf("o%c#%d:b%c#%d:f%c#%d:",
+			    'a' + part, spc * startcyl[part],
+			    'a' + part,
+			    defparam[part].p_frag * defparam[part].p_fsize,
+			    'a' + part, defparam[part].p_fsize);
+			if (defparam[part].p_fstype == FS_SWAP)
+				printf("t%c=swap:", 'a' + part);
+			nparts--;
+			printf("%s\n", nparts > 0 ? "\\" : "");
+		}
+#ifdef for_now
+		defpart[def][PART('c')] -= badsecttable;
+		part = PART('c');
+		printf("#\t:p%c#%d:", 'a' + part, defpart[def][part]);
+		printf("o%c#%d:b%c#%d:f%c#%d:\n",
+		    'a' + part, spc * startcyl[part],
+		    'a' + part,
+		    defparam[part].p_frag * defparam[part].p_fsize,
+		    'a' + part, defparam[part].p_fsize);
+#endif
+		exit(0);
+	}
+	printf("%s: #sectors/track=%d, #tracks/cylinder=%d #cylinders=%d\n",
+		dp->d_typename, dp->d_nsectors, dp->d_ntracks,
+		dp->d_ncylinders);
+	printf("\n    Partition\t   Size\t Offset\t   Range\n");
+	for (part = PART('a'); part < NPARTITIONS; part++) {
+		printf("\t%c\t", 'a' + part);
+		if (numcyls[part] == 0) {
+			printf(" unused\n");
+			continue;
+		}
+		printf("%7d\t%7d\t%4d - %d%s\n",
+			defpart[def][part], startcyl[part] * spc,
+			startcyl[part], startcyl[part] + numcyls[part] - 1,
+			defpart[def][part] % spc ? "*" : "");
+	}
+}
+
+struct disklabel disk;
+
+struct	field {
+	char	*f_name;
+	char	*f_defaults;
+	u_int32_t *f_location;
+} fields[] = {
+	{ "sector size",		"512",	&disk.d_secsize },
+	{ "#sectors/track",		0,	&disk.d_nsectors },
+	{ "#tracks/cylinder",		0,	&disk.d_ntracks },
+	{ "#cylinders",			0,	&disk.d_ncylinders },
+	{ 0, 0, 0 },
+};
+
+struct disklabel *
+promptfordisk(name)
+	char *name;
+{
+	register struct disklabel *dp = &disk;
+	register struct field *fp;
+	register i;
+	char buf[BUFSIZ], **tp, *cp, *gets();
+
+	strncpy(dp->d_typename, name, sizeof(dp->d_typename));
+	fprintf(stderr,
+		"%s: unknown disk type, want to supply parameters (y/n)? ",
+		name);
+	(void) gets(buf);
+	if (*buf != 'y')
+		return ((struct disklabel *)0);
+	for (;;) {
+		fprintf(stderr, "Disk/controller type (%s)? ", dktypenames[1]);
+		(void) gets(buf);
+		if (buf[0] == 0)
+			dp->d_type = 1;
+		else
+			dp->d_type = gettype(buf, dktypenames);
+		if ((int16_t)dp->d_type >= 0)
+			break;
+		fprintf(stderr, "%s: unrecognized controller type\n", buf);
+		fprintf(stderr, "use one of:\n", buf);
+		for (tp = dktypenames; *tp; tp++)
+			if (index(*tp, ' ') == 0)
+				fprintf(stderr, "\t%s\n", *tp);
+	}
+gettype:
+	dp->d_flags = 0;
+	fprintf(stderr, "type (winchester|removable|simulated)? ");
+	(void) gets(buf);
+	if (strcmp(buf, "removable") == 0)
+		dp->d_flags = D_REMOVABLE;
+	else if (strcmp(buf, "simulated") == 0)
+		dp->d_flags = D_RAMDISK;
+	else if (strcmp(buf, "winchester")) {
+		fprintf(stderr, "%s: bad disk type\n", buf);
+		goto gettype;
+	}
+	strncpy(dp->d_typename, buf, sizeof(dp->d_typename));
+	fprintf(stderr, "(type <cr> to get default value, if only one)\n");
+	if (dp->d_type == DTYPE_SMD)
+	   fprintf(stderr, "Do %ss support bad144 bad block forwarding (yes)? ",
+		dp->d_typename);
+	(void) gets(buf);
+	if (*buf != 'n')
+		dp->d_flags |= D_BADSECT;
+	for (fp = fields; fp->f_name != NULL; fp++) {
+again:
+		fprintf(stderr, "%s ", fp->f_name);
+		if (fp->f_defaults != NULL)
+			fprintf(stderr, "(%s)", fp->f_defaults);
+		fprintf(stderr, "? ");
+		cp = gets(buf);
+		if (*cp == '\0') {
+			if (fp->f_defaults == NULL) {
+				fprintf(stderr, "no default value\n");
+				goto again;
+			}
+			cp = fp->f_defaults;
+		}
+		*fp->f_location = atol(cp);
+		if (*fp->f_location == 0) {
+			fprintf(stderr, "%s: bad value\n", cp);
+			goto again;
+		}
+	}
+	fprintf(stderr, "sectors/cylinder (%d)? ",
+	    dp->d_nsectors * dp->d_ntracks);
+	(void) gets(buf);
+	if (buf[0] == 0)
+		dp->d_secpercyl = dp->d_nsectors * dp->d_ntracks;
+	else
+		dp->d_secpercyl = atol(buf);
+	fprintf(stderr, "Drive-type-specific parameters, <cr> to terminate:\n");
+	for (i = 0; i < NDDATA; i++) {
+		fprintf(stderr, "d%d? ", i);
+		(void) gets(buf);
+		if (buf[0] == 0)
+			break;
+		dp->d_drivedata[i] = atol(buf);
+	}
+	return (dp);
+}
+
+gettype(t, names)
+	char *t;
+	char **names;
+{
+	register char **nm;
+
+	for (nm = names; *nm; nm++)
+		if (ustrcmp(t, *nm) == 0)
+			return (nm - names);
+	if (isdigit(*t))
+		return (atoi(t));
+	return (-1);
+}
+
+ustrcmp(s1, s2)
+	register char *s1, *s2;
+{
+#define	lower(c)	(islower(c) ? (c) : tolower(c))
+
+	for (; *s1; s1++, s2++) {
+		if (*s1 == *s2)
+			continue;
+		if (isalpha(*s1) && isalpha(*s2) &&
+		    lower(*s1) == lower(*s2))
+			continue;
+		return (*s2 - *s1);
+	}
+	return (0);
+}