1/*
2 * Copyright (C) 1995 Wolfgang Solfrank
3 * Copyright (c) 1995 Martin Husemann
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26
27#include <sys/cdefs.h>
28#ifndef lint
29__RCSID("$NetBSD: main.c,v 1.10 1997/10/01 02:18:14 enami Exp $");
30static const char rcsid[] =
31  "$FreeBSD$";
32#endif /* not lint */
33
34#include <stdlib.h>
35#include <string.h>
36#include <stdio.h>
37#include <unistd.h>
38#include <errno.h>
39#include <stdarg.h>
40
41#include "fsutil.h"
42#include "ext.h"
43
44int alwaysno;		/* assume "no" for all questions */
45int alwaysyes;		/* assume "yes" for all questions */
46int preen;		/* set when preening */
47int rdonly;		/* device is opened read only (supersedes above) */
48int skipclean;		/* skip clean file systems if preening */
49
50static void usage(void) __dead2;
51
52static void
53usage(void)
54{
55
56	fprintf(stderr, "%s\n%s\n",
57	    "usage: fsck_msdosfs -p [-f] filesystem ...",
58	    "       fsck_msdosfs [-ny] filesystem ...");
59	exit(1);
60}
61
62int
63main(int argc, char **argv)
64{
65	int ret = 0, erg;
66	int ch;
67
68	skipclean = 1;
69	while ((ch = getopt(argc, argv, "CfFnpy")) != -1) {
70		switch (ch) {
71		case 'C': /* for fsck_ffs compatibility */
72			break;
73		case 'f':
74			skipclean = 0;
75			break;
76		case 'F':
77			/*
78			 * We can never run in the background.  We must exit
79			 * silently with a nonzero exit code so that fsck(8)
80			 * can probe our support for -F.  The exit code
81			 * doesn't really matter, but we use an unusual one
82			 * in case someone tries -F directly.  The -F flag
83			 * is intentionally left out of the usage message.
84			 */
85			exit(5);
86		case 'n':
87			alwaysno = 1;
88			alwaysyes = preen = 0;
89			break;
90		case 'y':
91			alwaysyes = 1;
92			alwaysno = preen = 0;
93			break;
94
95		case 'p':
96			preen = 1;
97			alwaysyes = alwaysno = 0;
98			break;
99
100		default:
101			usage();
102			break;
103		}
104	}
105	argc -= optind;
106	argv += optind;
107
108	if (!argc)
109		usage();
110
111	while (--argc >= 0) {
112		setcdevname(*argv, preen);
113		erg = checkfilesys(*argv++);
114		if (erg > ret)
115			ret = erg;
116	}
117
118	return ret;
119}
120
121
122/*VARARGS*/
123int
124ask(int def, const char *fmt, ...)
125{
126	va_list ap;
127
128	char prompt[256];
129	int c;
130
131	if (preen) {
132		if (rdonly)
133			def = 0;
134		if (def)
135			printf("FIXED\n");
136		return def;
137	}
138
139	va_start(ap, fmt);
140	vsnprintf(prompt, sizeof(prompt), fmt, ap);
141	if (alwaysyes || rdonly) {
142		printf("%s? %s\n", prompt, rdonly ? "no" : "yes");
143		return !rdonly;
144	}
145	do {
146		printf("%s? [yn] ", prompt);
147		fflush(stdout);
148		c = getchar();
149		while (c != '\n' && getchar() != '\n')
150			if (feof(stdin))
151				return 0;
152	} while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
153	return c == 'y' || c == 'Y';
154}
155