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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/* Copyright (c) 1987, 1988 Microsoft Corporation */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.9 */
/*
* mknod - build special file
*
* mknod name [ b ] [ c ] major minor
* mknod name p (named pipe)
*
* MODIFICATION HISTORY
* M000 11 Apr 83 andyp 3.0 upgrade
* - (Mostly uncommented). Picked up 3.0 source.
* - Added header. Changed usage message. Replaced hard-coded
* makedev with one from <sys/types.h>.
* - Added mechanism for creating name space files.
* - Added some error checks.
* - Semi-major reorganition.
*/
#include <sys/types.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/mkdev.h>
#define ACC 0666
static int domk(const char *path, const mode_t mode, const dev_t arg);
static long number(const char *s);
static void usage(void);
int
main(int argc, char **argv)
{
mode_t mode;
dev_t arg;
major_t majno;
minor_t minno;
if (argc < 3 || argc > 5)
usage();
if (argv[2][1] != '\0')
usage();
if (argc == 3) {
switch (argv[2][0]) {
case 'p':
mode = S_IFIFO;
arg = 0; /* (not used) */
break;
default:
usage();
/* NO RETURN */
}
} else if (argc == 5) {
switch (argv[2][0]) {
case 'b':
mode = S_IFBLK;
break;
case 'c':
mode = S_IFCHR;
break;
default:
usage();
}
majno = (major_t)number(argv[3]);
if (majno == (major_t)-1 || majno > MAXMAJ) {
(void) fprintf(stderr, "mknod: invalid major number "
"'%s' - valid range is 0-%lu\n", argv[3], MAXMAJ);
return (2);
}
minno = (minor_t)number(argv[4]);
if (minno == (minor_t)-1 || minno > MAXMIN) {
(void) fprintf(stderr, "mknod: invalid minor number "
"'%s' - valid range is 0-%lu\n", argv[4], MAXMIN);
return (2);
}
arg = makedev(majno, minno);
} else
usage();
return (domk(argv[1], (mode | ACC), arg) ? 2 : 0);
}
static int
domk(const char *path, const mode_t mode, const dev_t arg)
{
int ec;
if ((ec = mknod(path, mode, arg)) == -1) {
perror("mknod");
} else {
/* chown() return deliberately ignored */
(void) chown(path, getuid(), getgid());
}
return (ec);
}
static long
number(const char *s)
{
long n;
errno = 0;
n = strtol(s, NULL, 0);
if (errno != 0 || n < 0)
return (-1);
return (n);
}
static void
usage(void)
{
(void) fprintf(stderr, "usage: mknod name [ b/c major minor ] [ p ]\n");
exit(2);
}
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