busybox/coreutils/mknod.c

/* vi: set sw=4 ts=4: */
/*
 * mknod implementation for busybox
 *
 * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */

#include <sys/sysmacros.h>  // For makedev

#include "libbb.h"
#include "libcoreutils/coreutils.h"

static const char modes_chars[] ALIGN1 = { 'p', 'c', 'u', 'b', 0, 1, 1, 2 };
static const mode_t modes_cubp[] = { S_IFIFO, S_IFCHR, S_IFBLK };

int mknod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int mknod_main(int argc, char **argv)
{
	mode_t mode;
	dev_t dev;
	const char *name;

	mode = getopt_mk_fifo_nod(argv);
	argv += optind;
	argc -= optind;

	if (argc >= 2) {
		name = strchr(modes_chars, argv[1][0]);
		if (name != NULL) {
			mode |= modes_cubp[(int)(name[4])];

			dev = 0;
			if (*name != 'p') {
				argc -= 2;
				if (argc == 2) {
					/* Autodetect what the system supports; these macros should
					 * optimize out to two constants. */
					dev = makedev(xatoul_range(argv[2], 0, major(UINT_MAX)),
					              xatoul_range(argv[3], 0, minor(UINT_MAX)));
				}
			}

			if (argc == 2) {
				name = *argv;
				if (mknod(name, mode, dev) == 0) {
					return EXIT_SUCCESS;
				}
				bb_simple_perror_msg_and_die(name);
			}
		}
	}
	bb_show_usage();
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* mknod implementation for busybox
4	*
5	* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
6	*
7	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
8	*/
9
10	/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
11
12	#include <sys/sysmacros.h> // For makedev
13
14	#include "libbb.h"
15	#include "libcoreutils/coreutils.h"
16
17	static const char modes_chars[] ALIGN1 = { 'p', 'c', 'u', 'b', 0, 1, 1, 2 };
18	static const mode_t modes_cubp[] = { S_IFIFO, S_IFCHR, S_IFBLK };
19
20	int mknod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
21	int mknod_main(int argc, char **argv)
22	{
23	mode_t mode;
24	dev_t dev;
25	const char *name;
26
27	mode = getopt_mk_fifo_nod(argv);
28	argv += optind;
29	argc -= optind;
30
31	if (argc >= 2) {
32	name = strchr(modes_chars, argv[1][0]);
33	if (name != NULL) {
34	mode \|= modes_cubp[(int)(name[4])];
35
36	dev = 0;
37	if (*name != 'p') {
38	argc -= 2;
39	if (argc == 2) {
40	/* Autodetect what the system supports; these macros should
41	* optimize out to two constants. */
42	dev = makedev(xatoul_range(argv[2], 0, major(UINT_MAX)),
43	xatoul_range(argv[3], 0, minor(UINT_MAX)));
44	}
45	}
46
47	if (argc == 2) {
48	name = *argv;
49	if (mknod(name, mode, dev) == 0) {
50	return EXIT_SUCCESS;
51	}
52	bb_simple_perror_msg_and_die(name);
53	}
54	}
55	}
56	bb_show_usage();
57	}