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Add a -F option to specify the device number format. 

Also accept a single opaque device number.
This commit is contained in:
mycroft 1998-01-17 12:14:31 +00:00
parent 65d21cb64e
commit 535aef9832
2 changed files with 289 additions and 53 deletions
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38
sbin/mknod/mknod.8
View File

@ -1,4 +1,4 @@
.\" $NetBSD: mknod.8,v 1.12 1997/10/11 02:59:26 enami Exp $
.\" $NetBSD: mknod.8,v 1.13 1998/01/17 12:14:31 mycroft Exp $
.\"
.\" Copyright (c) 1980, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
@ -33,17 +33,22 @@
.\"
.\" @(#)mknod.8 8.2 (Berkeley) 12/11/93
.\"
.Dd December 11, 1993
.Dd January 17, 1998
.Dt MKNOD 8
.Os BSD 4
.Os NetBSD 1.4
.Sh NAME
.Nm mknod
.Nd build special file
.Nd make device special file
.Sh SYNOPSIS
.Nm
.Op Fl F Ar format
.Ar name
.Op Cm c | Cm b
.Ar major minor
.Nm ""
.Ar name
.Op Cm c | Cm b
.Ar number
.Sh DESCRIPTION
The
.Nm
@ -92,6 +97,27 @@ the node corresponds to on the device; for example,
a subunit may be a filesystem partition
or a tty line.
.El
.Pp
Device numbers for different operating systems may be packed in a different
format. To create device nodes that may be used by such an operating system
(e.g. in an exported file system used for netbooting), the
.Fl F
option is used. The following formats are recognized:
native,
386bsd,
4bsd,
freebsd,
hpux,
linux,
netbsd,
osf1,
solaris,
sunos,
svr3,
svr4 and
ultrix.
.Pp
Alternatively, a single opaque device number may be specified.
.Sh SEE ALSO
.Xr mkfifo 1 ,
.Xr mkfifo 2 ,
@ -102,3 +128,7 @@ A
.Nm
command appeared in
.At v6 .
The
.Fl F
option appeared in
.Nx 1.4 .

304
sbin/mknod/mknod.c
View File

@ -1,11 +1,7 @@
/* $NetBSD: mknod.c,v 1.10 1997/11/05 21:29:29 cgd Exp $ */
/* $NetBSD: mknod.c,v 1.11 1998/01/17 12:14:34 mycroft Exp $ */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Kevin Fall.
* Copyright (c) 1998 Charles M. Hannum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -17,84 +13,294 @@
* 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 product includes software developed by Charles M. Hannum.
* 4. The name of the author may not 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.
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1989, 1993\n\
The Regents of the University of California. All rights reserved.\n");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)mknod.c 8.1 (Berkeley) 6/5/93";
#else
__RCSID("$NetBSD: mknod.c,v 1.10 1997/11/05 21:29:29 cgd Exp $");
#endif
__COPYRIGHT("@(#) Copyright (c) 1998 Charles M. Hannum. All rights reserved.\n");
__RCSID("$NetBSD: mknod.c,v 1.11 1998/01/17 12:14:34 mycroft Exp $");
#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
int main __P((int, char *[]));
static void usage __P((void));
int main __P((int, char *[]));
static void usage __P((void));
typedef dev_t pack_t __P((u_long, u_long, u_long *, u_long *));
pack_t pack_native;
dev_t
pack_native(maj, min, maj2, min2)
u_long maj, min, *maj2, *min2;
{
dev_t dev;
dev = makedev(maj, min);
*maj2 = major(dev);
*min2 = minor(dev);
return (dev);
}
#define major_netbsd(x) ((int32_t)((((x) & 0x000fff00) >> 8)))
#define minor_netbsd(x) ((int32_t)((((x) & 0xfff00000) >> 12) | \
(((x) & 0x000000ff) >> 0)))
#define makedev_netbsd(x,y) ((dev_t)((((x) << 8) & 0x000fff00) | \
(((y) << 12) & 0xfff00000) | \
(((y) << 0) & 0x000000ff)))
pack_t pack_netbsd;
dev_t
pack_netbsd(maj, min, maj2, min2)
u_long maj, min, *maj2, *min2;
{
dev_t dev;
dev = makedev_netbsd(maj, min);
*maj2 = major_netbsd(dev);
*min2 = minor_netbsd(dev);
return (dev);
}
#define major_freebsd(x) ((int32_t)(((x) & 0x0000ff00) >> 8))
#define minor_freebsd(x) ((int32_t)(((x) & 0xffff00ff) >> 0))
#define makedev_freebsd(x,y) ((dev_t)((((x) << 8) & 0x0000ff00) | \
(((y) << 0) & 0xffff00ff)))
pack_t pack_freebsd;
dev_t
pack_freebsd(maj, min, maj2, min2)
u_long maj, min, *maj2, *min2;
{
dev_t dev;
dev = makedev_freebsd(maj, min);
*maj2 = major_freebsd(dev);
*min2 = minor_freebsd(dev);
return (dev);
}
#define major_8_8(x) ((int32_t)(((x) & 0x0000ff00) >> 8))
#define minor_8_8(x) ((int32_t)(((x) & 0x000000ff) >> 0))
#define makedev_8_8(x,y) ((dev_t)((((x) << 8) & 0x0000ff00) | \
(((y) << 0) & 0x000000ff)))
pack_t pack_8_8;
dev_t
pack_8_8(maj, min, maj2, min2)
u_long maj, min, *maj2, *min2;
{
dev_t dev;
dev = makedev_8_8(maj, min);
*maj2 = major_8_8(dev);
*min2 = minor_8_8(dev);
return (dev);
}
#define major_12_20(x) ((int32_t)(((x) & 0xfff00000) >> 20))
#define minor_12_20(x) ((int32_t)(((x) & 0x000fffff) >> 0))
#define makedev_12_20(x,y) ((dev_t)((((x) << 20) & 0xfff00000) | \
(((y) << 0) & 0x000fffff)))
pack_t pack_12_20;
dev_t
pack_12_20(maj, min, maj2, min2)
u_long maj, min, *maj2, *min2;
{
dev_t dev;
dev = makedev_12_20(maj, min);
*maj2 = major_12_20(dev);
*min2 = minor_12_20(dev);
return (dev);
}
#define major_14_18(x) ((int32_t)(((x) & 0xfffc0000) >> 18))
#define minor_14_18(x) ((int32_t)(((x) & 0x0003ffff) >> 0))
#define makedev_14_18(x,y) ((dev_t)((((x) << 18) & 0xfffc0000) | \
(((y) << 0) & 0x0003ffff)))
pack_t pack_14_18;
dev_t
pack_14_18(maj, min, maj2, min2)
u_long maj, min, *maj2, *min2;
{
dev_t dev;
dev = makedev_14_18(maj, min);
*maj2 = major_14_18(dev);
*min2 = minor_14_18(dev);
return (dev);
}
#define major_8_24(x) ((int32_t)(((x) & 0xff000000) >> 24))
#define minor_8_24(x) ((int32_t)(((x) & 0x00ffffff) >> 0))
#define makedev_8_24(x,y) ((dev_t)((((x) << 24) & 0xff000000) | \
(((y) << 0) & 0x00ffffff)))
pack_t pack_8_24;
dev_t
pack_8_24(maj, min, maj2, min2)
u_long maj, min, *maj2, *min2;
{
dev_t dev;
dev = makedev_8_24(maj, min);
*maj2 = major_8_24(dev);
*min2 = minor_8_24(dev);
return (dev);
}
struct format {
char *name;
pack_t *pack;
} formats[] = {
{"386bsd", pack_8_8},
{"4bsd", pack_8_8},
{"freebsd", pack_freebsd},
{"hpux", pack_8_24},
{"linux", pack_8_8},
{"native", pack_native},
{"netbsd", pack_netbsd},
{"osf1", pack_12_20},
{"solaris", pack_14_18},
{"sunos", pack_8_8},
{"svr3", pack_8_8},
{"svr4", pack_14_18},
{"ultrix", pack_8_8},
};
int compare_format __P((const void *, const void *));
int
compare_format(key, element)
const void *key;
const void *element;
{
const char *name;
const struct format *format;
name = key;
format = element;
return (strcmp(name, format->name));
}
int
main(argc, argv)
int argc;
char **argv;
{
struct format *format;
pack_t *pack;
char *p;
u_long maj, min, maj2, min2;
mode_t mode;
dev_t dev;
int ch;
if (argc != 5) {
usage();
/* NOTREACHED */
pack = pack_native;
while ((ch = getopt(argc, argv, "F:")) != -1) {
switch (ch) {
case 'F':
format = bsearch(optarg, formats,
sizeof(formats)/sizeof(formats[0]),
sizeof(formats[0]), compare_format);
if (format == 0)
errx(1, "invalid format: %s", optarg);
pack = format->pack;
break;
default:
case '?':
usage();
}
}
argc -= optind;
argv += optind;
if (argc != 3 && argc != 4)
usage();
mode = 0666;
if (argv[2][0] == 'c')
if (argv[1][0] == 'c')
mode |= S_IFCHR;
else if (argv[2][0] == 'b')
else if (argv[1][0] == 'b')
mode |= S_IFBLK;
else {
else
errx(1, "node must be type 'b' or 'c'.");
/* NOTREACHED */
if (argc == 4) {
maj = strtoul(argv[2], &p, 0);
if ((p && *p != '\0') || (maj == ULONG_MAX && errno == ERANGE))
errx(1, "invalid major number: %s", argv[2]);
min = strtoul(argv[3], &p, 0);
if ((p && *p != '\0') || (min == ULONG_MAX && errno == ERANGE))
errx(1, "invalid minor number: %s", argv[3]);
dev = (*pack)(maj, min, &maj2, &min2);
if (maj2 != maj)
errx(1, "major number out of range: %s", argv[2]);
if (min2 != min)
errx(1, "minor number out of range: %s", argv[3]);
} else {
dev = (dev_t) strtoul(argv[2], &p, 0);
if ((p && *p != '\0') || (dev == ULONG_MAX && errno == ERANGE))
errx(1, "invalid device number: %s", argv[2]);
}
if (mknod(argv[1], mode, makedev(atoi(argv[3]), atoi(argv[4]))) < 0) {
err(1, "%s", argv[1]);
/* NOTREACHED */
}
if (mknod(argv[0], mode, dev) < 0)
err(1, "%s", argv[0]);
exit(0);
/* NOTREACHED */
}
void
usage()
{
(void)fprintf(stderr, "usage: mknod name [b | c] major minor\n");
fprintf(stderr, "usage: mknod [-F format] name [b | c] major minor\n");
fprintf(stderr, " mknod name [b | c] number\n");
exit(1);
/* NOTREACHED */
}