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

static const char modes_chars[] = { '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)
{
	mode_t mode;
	dev_t dev;
	const char *name;

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

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

		dev = 0;
		if ((*name != 'p') && ((argc -= 2) == 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_perror_msg_and_die("%s", 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 "busybox.h"
15	#include "libcoreutils/coreutils.h"
16
17	static const char modes_chars[] = { '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)
21	{
22	mode_t mode;
23	dev_t dev;
24	const char *name;
25
26	mode = getopt_mk_fifo_nod(argc, argv);
27	argv += optind;
28	argc -= optind;
29
30	if ((argc >= 2) && ((name = strchr(modes_chars, argv[1][0])) != NULL)) {
31	mode \|= modes_cubp[(int)(name[4])];
32
33	dev = 0;
34	if ((*name != 'p') && ((argc -= 2) == 2)) {
35	/* Autodetect what the system supports; these macros should
36	* optimize out to two constants. */
37	dev = makedev(xatoul_range(argv[2], 0, major(UINT_MAX)),
38	xatoul_range(argv[3], 0, minor(UINT_MAX)));
39	}
40
41	if (argc == 2) {
42	name = *argv;
43	if (mknod(name, mode, dev) == 0) {
44	return EXIT_SUCCESS;
45	}
46	bb_perror_msg_and_die("%s", name);
47	}
48	}
49	bb_show_usage();
50	}