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0b8224d1cc
We've ifdef'd out the copyright strings for some time now. Go ahead and remove the ifdefs. Plus whatever other detritis was left over from other recent removals. These copyright strings are present in the comments and are largely from CSRG's attempt at adding their copyright to every binary file (which modern interpretations of the license doesn't require). Sponsored by: Netflix
156 lines
4.1 KiB
C
156 lines
4.1 KiB
C
/*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Kevin Fall.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <grp.h>
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#include <pwd.h>
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#include <string.h>
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static void
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usage(void)
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{
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(void)fprintf(stderr,
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"usage: mknod name\n"
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" mknod name [b | c] major minor [owner:group]\n");
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exit(1);
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}
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static u_long
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id(const char *name, const char *type)
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{
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u_long val;
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char *ep;
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/*
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* XXX
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* We know that uid_t's and gid_t's are unsigned longs.
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*/
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errno = 0;
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val = strtoul(name, &ep, 10);
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if (errno)
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err(1, "%s", name);
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if (*ep != '\0')
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errx(1, "%s: illegal %s name", name, type);
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return (val);
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}
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static gid_t
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a_gid(const char *s)
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{
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struct group *gr;
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if (*s == '\0') /* Argument was "uid[:.]". */
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errx(1, "group must be specified when the owner is");
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return ((gr = getgrnam(s)) == NULL) ? id(s, "group") : gr->gr_gid;
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}
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static uid_t
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a_uid(const char *s)
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{
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struct passwd *pw;
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if (*s == '\0') /* Argument was "[:.]gid". */
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errx(1, "owner must be specified when the group is");
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return ((pw = getpwnam(s)) == NULL) ? id(s, "user") : pw->pw_uid;
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}
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int
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main(int argc, char **argv)
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{
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int range_error;
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uid_t uid;
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gid_t gid;
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mode_t mode;
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dev_t dev;
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char *cp, *endp;
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long mymajor, myminor;
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if (argc != 2 && argc != 5 && argc != 6)
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usage();
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if (argc >= 5) {
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mode = 0666;
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if (argv[2][0] == 'c')
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mode |= S_IFCHR;
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else if (argv[2][0] == 'b')
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mode |= S_IFBLK;
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else
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errx(1, "node must be type 'b' or 'c'");
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errno = 0;
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mymajor = (long)strtoul(argv[3], &endp, 0);
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if (endp == argv[3] || *endp != '\0')
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errx(1, "%s: non-numeric major number", argv[3]);
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range_error = errno;
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errno = 0;
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myminor = (long)strtoul(argv[4], &endp, 0);
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if (endp == argv[4] || *endp != '\0')
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errx(1, "%s: non-numeric minor number", argv[4]);
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range_error |= errno;
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dev = makedev(mymajor, myminor);
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if (range_error || major(dev) != mymajor ||
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(long)(u_int)minor(dev) != myminor)
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errx(1, "major or minor number too large");
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} else {
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mode = 0666 | S_IFCHR;
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dev = 0;
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}
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uid = gid = -1;
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if (6 == argc) {
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/* have owner:group */
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if ((cp = strchr(argv[5], ':')) != NULL) {
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*cp++ = '\0';
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gid = a_gid(cp);
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} else
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usage();
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uid = a_uid(argv[5]);
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}
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if (mknod(argv[1], mode, dev) != 0)
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err(1, "%s", argv[1]);
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if (6 == argc)
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if (chown(argv[1], uid, gid))
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err(1, "setting ownership on %s", argv[1]);
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exit(0);
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}
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