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Annotation of 43BSDReno/sbin/mknod/mknod.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1989 The Regents of the University of California.
                      3:  * 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 are permitted
                      9:  * provided that: (1) source distributions retain this entire copyright
                     10:  * notice and comment, and (2) distributions including binaries display
                     11:  * the following acknowledgement:  ``This product includes software
                     12:  * developed by the University of California, Berkeley and its contributors''
                     13:  * in the documentation or other materials provided with the distribution
                     14:  * and in all advertising materials mentioning features or use of this
                     15:  * software. Neither the name of the University nor the names of its
                     16:  * contributors may be used to endorse or promote products derived
                     17:  * from this software without specific prior written permission.
                     18:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     19:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     20:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     21:  */
                     22: 
                     23: #ifndef lint
                     24: char copyright[] =
                     25: "@(#) Copyright (c) 1989 The Regents of the University of California.\n\
                     26:  All rights reserved.\n";
                     27: #endif /* not lint */
                     28: 
                     29: #ifndef lint
                     30: static char sccsid[] = "@(#)mknod.c    4.4 (Berkeley) 6/1/90";
                     31: #endif /* not lint */
                     32: 
                     33: #include <sys/types.h>
                     34: #include <sys/stat.h>
                     35: #include <stdio.h>
                     36: 
                     37: main(argc, argv)
                     38:        int argc;
                     39:        char **argv;
                     40: {
                     41:        extern int errno;
                     42:        u_short mode;
                     43:        char *strerror();
                     44: 
                     45:        if (argc != 5) {
                     46:                (void)fprintf(stderr,
                     47:                    "usage: mknod name [b | c] major minor\n");
                     48:                exit(1);
                     49:        }
                     50: 
                     51:        mode = 0666;
                     52:        if (argv[2][0] == 'c')
                     53:                mode |= S_IFCHR;
                     54:        else if (argv[2][0] == 'b')
                     55:                mode |= S_IFBLK;
                     56:        else {
                     57:                (void)fprintf(stderr,
                     58:                    "mknod: node must be type 'b' or 'c'.\n");
                     59:                exit(1);
                     60:        }
                     61: 
                     62:        if (mknod(argv[1], mode, makedev(atoi(argv[3]), atoi(argv[4]))) < 0) {
                     63:                (void)fprintf(stderr,
                     64:                    "mknod: %s: %s\n", argv[1], strerror(errno));
                     65:                exit(1);
                     66:        }
                     67:        exit(0);
                     68: }

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