1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Kevin Fall. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 static const char copyright[] = 39 "@(#) Copyright (c) 1989, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41 #endif /* not lint */ 42 43 #ifndef lint 44 #if 0 45 static char sccsid[] = "@(#)mknod.c 8.1 (Berkeley) 6/5/93"; 46 #endif 47 static const char rcsid[] = 48 "$FreeBSD$"; 49 #endif /* not lint */ 50 51 #include <sys/types.h> 52 #include <sys/stat.h> 53 54 #include <err.h> 55 #include <errno.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <unistd.h> 59 60 static void 61 usage() 62 { 63 (void)fprintf(stderr, "usage: mknod name [b | c] major minor\n"); 64 exit(1); 65 } 66 67 int 68 main(argc, argv) 69 int argc; 70 char **argv; 71 { 72 dev_t dev; 73 char *endp; 74 long mymajor, myminor; 75 mode_t mode; 76 int range_error; 77 78 if (argc != 5) 79 usage(); 80 81 mode = 0666; 82 if (argv[2][0] == 'c') 83 mode |= S_IFCHR; 84 else if (argv[2][0] == 'b') 85 mode |= S_IFBLK; 86 else 87 errx(1, "node must be type 'b' or 'c'"); 88 89 errno = 0; 90 mymajor = (long)strtoul(argv[3], &endp, 0); 91 if (endp == argv[3] || *endp != '\0') 92 errx(1, "%s: non-numeric major number", argv[3]); 93 range_error = errno; 94 errno = 0; 95 myminor = (long)strtoul(argv[4], &endp, 0); 96 if (endp == argv[4] || *endp != '\0') 97 errx(1, "%s: non-numeric minor number", argv[4]); 98 range_error |= errno; 99 dev = makedev(mymajor, myminor); 100 if (range_error || major(dev) != mymajor || minor(dev) != myminor) 101 errx(1, "major or minor number too large"); 102 103 if (mknod(argv[1], mode, dev) != 0) 104 err(1, "%s", argv[1]); 105 exit(0); 106 } 107