usr/src/sbin/mknod/mknod.c

/*
 * Copyright (c) 1989, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Kevin Fall.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1989, 1993\n\
        The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)mknod.c     8.1 (Berkeley) %G%";
#endif /* not lint */

#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>

main(argc, argv)
        int argc;
        char **argv;
{
        extern int errno;
        u_short mode;
        char *strerror();

        if (argc != 5) {
                (void)fprintf(stderr,
                    "usage: mknod name [b | c] major minor\n");
                exit(1);
        }

        mode = 0666;
        if (argv[2][0] == 'c')
                mode |= S_IFCHR;
        else if (argv[2][0] == 'b')
                mode |= S_IFBLK;
        else {
                (void)fprintf(stderr,
                    "mknod: node must be type 'b' or 'c'.\n");
                exit(1);
        }

        if (mknod(argv[1], mode, makedev(atoi(argv[3]), atoi(argv[4]))) < 0) {
                (void)fprintf(stderr,
                    "mknod: %s: %s\n", argv[1], strerror(errno));
                exit(1);
        }
        exit(0);
}