NetBSD/sbin/mknod/mknod.c

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/* $NetBSD: mknod.c,v 1.21 2001/02/19 22:56:21 cgd Exp $ */
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/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
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*
* 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:
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* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
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*/
#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1998 The NetBSD Foundation, Inc. All rights reserved.\n");
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__RCSID("$NetBSD: mknod.c,v 1.21 2001/02/19 22:56:21 cgd Exp $");
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#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
#include <unistd.h>
#include <string.h>
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int main __P((int, char *[]));
static void usage __P((void));
typedef dev_t pack_t __P((int, u_long []));
pack_t pack_native;
dev_t
pack_native(n, numbers)
int n;
u_long numbers[];
{
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dev_t dev=0; /* Quiet -Wall */
if (n == 2) {
dev = makedev(numbers[0], numbers[1]);
if (major(dev) != numbers[0])
errx(1, "invalid major number");
if (minor(dev) != numbers[1])
errx(1, "invalid minor number");
} else
errx(1, "too many fields for format");
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(n, numbers)
int n;
u_long numbers[];
{
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dev_t dev=0; /* Quiet -Wall */
if (n == 2) {
dev = makedev_netbsd(numbers[0], numbers[1]);
if (major_netbsd(dev) != numbers[0])
errx(1, "invalid major number");
if (minor_netbsd(dev) != numbers[1])
errx(1, "invalid minor number");
} else
errx(1, "too many fields for format");
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(n, numbers)
int n;
u_long numbers[];
{
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dev_t dev=0; /* Quiet -Wall */
if (n == 2) {
dev = makedev_freebsd(numbers[0], numbers[1]);
if (major_freebsd(dev) != numbers[0])
errx(1, "invalid major number");
if (minor_freebsd(dev) != numbers[1])
errx(1, "invalid minor number");
} else
errx(1, "too many fields for format");
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(n, numbers)
int n;
u_long numbers[];
{
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dev_t dev=0; /* Quiet -Wall */
if (n == 2) {
dev = makedev_8_8(numbers[0], numbers[1]);
if (major_8_8(dev) != numbers[0])
errx(1, "invalid major number");
if (minor_8_8(dev) != numbers[1])
errx(1, "invalid minor number");
} else
errx(1, "too many fields for format");
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(n, numbers)
int n;
u_long numbers[];
{
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dev_t dev=0; /* Quiet -Wall */
if (n == 2) {
dev = makedev_12_20(numbers[0], numbers[1]);
if (major_12_20(dev) != numbers[0])
errx(1, "invalid major number");
if (minor_12_20(dev) != numbers[1])
errx(1, "invalid minor number");
} else
errx(1, "too many fields for format");
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(n, numbers)
int n;
u_long numbers[];
{
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dev_t dev=0; /* Quiet -Wall */
if (n == 2) {
dev = makedev_14_18(numbers[0], numbers[1]);
if (major_14_18(dev) != numbers[0])
errx(1, "invalid major number");
if (minor_14_18(dev) != numbers[1])
errx(1, "invalid minor number");
} else
errx(1, "too many fields for format");
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(n, numbers)
int n;
u_long numbers[];
{
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dev_t dev=0; /* Quiet -Wall */
if (n == 2) {
dev = makedev_8_24(numbers[0], numbers[1]);
if (major_8_24(dev) != numbers[0])
errx(1, "invalid major number");
if (minor_8_24(dev) != numbers[1])
errx(1, "invalid minor number");
} else
errx(1, "too many fields for format");
return (dev);
}
#define major_12_12_8(x) ((int32_t)(((x) & 0xfff00000) >> 20))
#define unit_12_12_8(x) ((int32_t)(((x) & 0x000fff00) >> 8))
#define subunit_12_12_8(x) ((int32_t)(((x) & 0x000000ff) >> 0))
#define makedev_12_12_8(x,y,z) ((dev_t)((((x) << 20) & 0xfff00000) | \
(((y) << 8) & 0x000fff00) | \
(((z) << 0) & 0x000000ff)))
pack_t pack_bsdos;
dev_t
pack_bsdos(n, numbers)
int n;
u_long numbers[];
{
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dev_t dev=0; /* Quiet -Wall */
if (n == 2) {
dev = makedev_12_20(numbers[0], numbers[1]);
if (major_12_20(dev) != numbers[0])
errx(1, "invalid major number");
if (minor_12_20(dev) != numbers[1])
errx(1, "invalid minor number");
} else if (n == 3) {
dev = makedev_12_12_8(numbers[0], numbers[1], numbers[2]);
if (major_12_12_8(dev) != numbers[0])
errx(1, "invalid major number");
if (unit_12_12_8(dev) != numbers[1])
errx(1, "invalid unit number");
if (subunit_12_12_8(dev) != numbers[2])
errx(1, "invalid subunit number");
} else
errx(1, "too many fields for format");
return (dev);
}
struct format {
char *name;
pack_t *pack;
} formats[] = {
{"386bsd", pack_8_8},
{"4bsd", pack_8_8},
{"bsdos", pack_bsdos},
{"freebsd", pack_freebsd},
{"hpux", pack_8_24},
{"isc", pack_8_8},
{"linux", pack_8_8},
{"native", pack_native},
{"netbsd", pack_netbsd},
{"osf1", pack_12_20},
{"sco", pack_8_8},
{"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));
}
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int
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main(argc, argv)
int argc;
char **argv;
{
char *name;
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mode_t mode;
dev_t dev = 0;
pack_t *pack;
u_long numbers[8];
struct format *format = NULL;
char *p;
int n;
int ch;
int fifo = 0;
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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();
}
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}
argc -= optind;
argv += optind;
if (argc < 2 || argc > 10)
usage();
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name = *argv;
argc--;
argv++;
mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH;
switch (*argv[0]) {
case 'c':
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mode |= S_IFCHR;
break;
case 'b':
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mode |= S_IFBLK;
break;
case 'p':
if (format)
errx(1, "format is meaningless for fifos");
fifo = 1;
break;
default:
errx(1, "node type must be 'b', 'c' or 'p'.");
}
argc--;
argv++;
if (!fifo == (argc == 0))
usage();
for (n = 0; n < argc; n++) {
numbers[n] = strtoul(argv[n], &p, 0);
if ((p && *p != '\0') || (numbers[n] == ULONG_MAX && errno == ERANGE))
errx(1, "invalid number: %s", argv[n]);
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}
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switch (argc) {
case 0:
dev = 0;
break;
case 1:
dev = numbers[0];
break;
default:
dev = (*pack)(argc, numbers);
break;
}
#if 0
printf("name: %s\nmode: %05o\ndev: %08x\n", name, mode, dev);
#else
if ((fifo ? mkfifo(name, mode) : mknod(name, mode, dev)) < 0)
err(1, "%s", name);
#endif
return(0);
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}
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static void
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usage()
{
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const char *progname = getprogname();
(void)fprintf(stderr,
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"Usage: %s [-F format] name [b | c] major minor\n", progname);
(void)fprintf(stderr,
" %s [-F format] name [b | c] major unit subunit\n",
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progname);
(void)fprintf(stderr, " %s name [b | c] number\n", progname);
(void)fprintf(stderr, " %s name p\n", progname);
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exit(1);
}