summaryrefslogtreecommitdiffstats
path: root/disk-utils/mkfs.c
blob: 3c041fab4912d994b1e1c86abeef6c977ba2c9d3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/*
 * mkfs		A simple generic frontend for the for the mkfs program
 *		under Linux.  See the manual page for details.
 *
 * Authors:	David Engel, <david@ods.com>
 *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *		Ron Sommeling, <sommel@sci.kun.nl>
 *
 * Mon Jul  1 18:52:58 1996: janl@math.uio.no (Nicolai Langfeldt):
 *	Incorporated fix by Jonathan Kamens <jik@annex-1-slip-jik.cam.ov.com>
 * 1999-02-22 Arkadiusz Miśkiewicz <misiek@pld.ORG.PL>
 * - added Native Language Support
 *
 */

/*
 * This command is deprecated.  The utility is in maintenance mode,
 * meaning we keep them in source tree for backward compatibility
 * only.  Do not waste time making this command better, unless the
 * fix is about security or other very critical issue.
 *
 * See Documentation/deprecated.txt for more information.
 */

#include <getopt.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "c.h"
#include "closestream.h"
#include "nls.h"
#include "xalloc.h"

#ifndef DEFAULT_FSTYPE
#define DEFAULT_FSTYPE	"ext2"
#endif

static void __attribute__((__noreturn__)) usage(void)
{
	FILE *out = stdout;
	fputs(USAGE_HEADER, out);
	fprintf(out, _(" %s [options] [-t <type>] [fs-options] <device> [<size>]\n"),
		     program_invocation_short_name);

	fputs(USAGE_SEPARATOR, out);
	fputs(_("Make a Linux filesystem.\n"), out);

	fputs(USAGE_OPTIONS, out);
	fprintf(out, _(" -t, --type=<type>  filesystem type; when unspecified, ext2 is used\n"));
	fprintf(out, _("     fs-options     parameters for the real filesystem builder\n"));
	fprintf(out, _("     <device>       path to the device to be used\n"));
	fprintf(out, _("     <size>         number of blocks to be used on the device\n"));
	fprintf(out, _(" -V, --verbose      explain what is being done;\n"
		       "                      specifying -V more than once will cause a dry-run\n"));
	printf(USAGE_HELP_OPTIONS(20));

	printf(USAGE_MAN_TAIL("mkfs(8)"));
	exit(EXIT_SUCCESS);
}

int main(int argc, char **argv)
{
	char *progname;		/* name of executable to be called */
	char *fstype = NULL;
	int i, more = 0, verbose = 0;

	enum { VERSION_OPTION = CHAR_MAX + 1 };

	static const struct option longopts[] = {
		{"type", required_argument, NULL, 't'},
		{"version", no_argument, NULL, VERSION_OPTION},
		{"verbose", no_argument, NULL, 'V'},
		{"help", no_argument, NULL, 'h'},
		{NULL, 0, NULL, 0}
	};

	setlocale(LC_ALL, "");
	bindtextdomain(PACKAGE, LOCALEDIR);
	textdomain(PACKAGE);
	close_stdout_atexit();

	if (argc == 2 && !strcmp(argv[1], "-V"))
		print_version(EXIT_SUCCESS);

	/* Check commandline options. */
	opterr = 0;
	while ((more == 0)
	       && ((i = getopt_long(argc, argv, "Vt:h", longopts, NULL))
		   != -1))
		switch (i) {
		case 'V':
			verbose++;
			break;
		case 't':
			fstype = optarg;
			break;
		case 'h':
			usage();
		case VERSION_OPTION:
			print_version(EXIT_SUCCESS);
		default:
			optind--;
			more = 1;
			break;	/* start of specific arguments */
		}
	if (optind == argc) {
		warnx(_("no device specified"));
		errtryhelp(EXIT_FAILURE);
	}

	/* If -t wasn't specified, use the default */
	if (fstype == NULL)
		fstype = DEFAULT_FSTYPE;

	xasprintf(&progname, "mkfs.%s", fstype);
	argv[--optind] = progname;

	if (verbose) {
		printf(UTIL_LINUX_VERSION);
		i = optind;
		while (argv[i])
			printf("%s ", argv[i++]);
		printf("\n");
		if (verbose > 1)
			return EXIT_SUCCESS;
	}

	/* Execute the program */
	execvp(progname, argv + optind);
	err(EXIT_FAILURE, _("failed to execute %s"), progname);
}