4.3BSD-Reno/src/sbin/mknod/mknod.c

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Kevin Fall.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that: (1) source distributions retain this entire copyright
 * notice and comment, and (2) distributions including binaries display
 * the following acknowledgement:  ``This product includes software
 * developed by the University of California, Berkeley and its contributors''
 * in the documentation or other materials provided with the distribution
 * and in all advertising materials mentioning features or use of this
 * software. Neither the name of the University nor the names of its
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

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

#ifndef lint
static char sccsid[] = "@(#)mknod.c	4.4 (Berkeley) 6/1/90";
#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);
}