main.c revision 92839 
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 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by Martin Husemann
16 *	and Wolfgang Solfrank.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33
34#include <sys/cdefs.h>
35#ifndef lint
36__RCSID("$NetBSD: main.c,v 1.10 1997/10/01 02:18:14 enami Exp $");
37static const char rcsid[] =
38  "$FreeBSD: head/sbin/fsck_msdosfs/main.c 92839 2002-03-20 22:57:10Z imp $";
39#endif /* not lint */
40
41#include <stdlib.h>
42#include <string.h>
43#include <ctype.h>
44#include <stdio.h>
45#include <unistd.h>
46#include <errno.h>
47#include <stdarg.h>
48
49#include "fsutil.h"
50#include "ext.h"
51
52int alwaysno;		/* assume "no" for all questions */
53int alwaysyes;		/* assume "yes" for all questions */
54int preen;		/* set when preening */
55int rdonly;		/* device is opened read only (supersedes above) */
56
57static void usage(void) __dead2;
58
59static void
60usage()
61{
62	errexit("Usage: fsck_msdos [-fnpy] filesystem ... \n");
63}
64
65int
66main(int argc, char **argv)
67{
68	int ret = 0, erg;
69	int ch;
70
71	while ((ch = getopt(argc, argv, "fFnpy")) != -1) {
72		switch (ch) {
73		case 'f':
74			/*
75			 * We are always forced, since we don't
76			 * have a clean flag
77			 */
78			break;
79		case 'F':
80			/* We can never run in background */
81			exit(5);
82			break;
83		case 'n':
84			alwaysno = 1;
85			alwaysyes = preen = 0;
86			break;
87		case 'y':
88			alwaysyes = 1;
89			alwaysno = preen = 0;
90			break;
91
92		case 'p':
93			preen = 1;
94			alwaysyes = alwaysno = 0;
95			break;
96
97		default:
98			usage();
99			break;
100		}
101	}
102	argc -= optind;
103	argv += optind;
104
105	if (!argc)
106		usage();
107
108	while (--argc >= 0) {
109		setcdevname(*argv, preen);
110		erg = checkfilesys(*argv++);
111		if (erg > ret)
112			ret = erg;
113	}
114
115	return ret;
116}
117
118
119/*VARARGS*/
120int
121ask(int def, const char *fmt, ...)
122{
123	va_list ap;
124
125	char prompt[256];
126	int c;
127
128	if (preen) {
129		if (rdonly)
130			def = 0;
131		if (def)
132			printf("FIXED\n");
133		return def;
134	}
135
136	va_start(ap, fmt);
137	vsnprintf(prompt, sizeof(prompt), fmt, ap);
138	if (alwaysyes || rdonly) {
139		printf("%s? %s\n", prompt, rdonly ? "no" : "yes");
140		return !rdonly;
141	}
142	do {
143		printf("%s? [yn] ", prompt);
144		fflush(stdout);
145		c = getchar();
146		while (c != '\n' && getchar() != '\n')
147			if (feof(stdin))
148				return 0;
149	} while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
150	return c == 'y' || c == 'Y';
151}
152