2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 static const char copyright[] =
37 "@(#) Copyright (c) 1989, 1993\n\
38 The Regents of the University of California. All rights reserved.\n";
43 static char sccsid[] = "@(#)mknod.c 8.1 (Berkeley) 6/5/93";
45 static const char rcsid[] =
49 #include <sys/types.h>
67 " mknod name [b | c] major minor [owner:group]\n");
72 id(const char *name, const char *type)
79 * We know that uid_t's and gid_t's are unsigned longs.
82 val = strtoul(name, &ep, 10);
86 errx(1, "%s: illegal %s name", name, type);
95 if (*s == '\0') /* Argument was "uid[:.]". */
96 errx(1, "group must be specified when the owner is");
97 return ((gr = getgrnam(s)) == NULL) ? id(s, "group") : gr->gr_gid;
105 if (*s == '\0') /* Argument was "[:.]gid". */
106 errx(1, "owner must be specified when the group is");
107 return ((pw = getpwnam(s)) == NULL) ? id(s, "user") : pw->pw_uid;
111 main(int argc, char **argv)
119 long mymajor, myminor;
121 if (argc != 2 && argc != 5 && argc != 6)
126 if (argv[2][0] == 'c')
128 else if (argv[2][0] == 'b')
131 errx(1, "node must be type 'b' or 'c'");
134 mymajor = (long)strtoul(argv[3], &endp, 0);
135 if (endp == argv[3] || *endp != '\0')
136 errx(1, "%s: non-numeric major number", argv[3]);
139 myminor = (long)strtoul(argv[4], &endp, 0);
140 if (endp == argv[4] || *endp != '\0')
141 errx(1, "%s: non-numeric minor number", argv[4]);
142 range_error |= errno;
143 dev = makedev(mymajor, myminor);
144 if (range_error || major(dev) != mymajor ||
145 (long)(u_int)minor(dev) != myminor)
146 errx(1, "major or minor number too large");
148 mode = 0666 | S_IFCHR;
154 /* have owner:group */
155 if ((cp = strchr(argv[5], ':')) != NULL) {
160 uid = a_uid(argv[5]);
163 if (mknod(argv[1], mode, dev) != 0)
164 err(1, "%s", argv[1]);
166 if (chown(argv[1], uid, gid))
167 err(1, "setting ownership on %s", argv[1]);