xref: /dragonfly/sbin/fsck_msdosfs/main.c (revision 52f9f0d9)
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  * $NetBSD: main.c,v 1.10 1997/10/01 02:18:14 enami Exp $
33  * $FreeBSD: src/sbin/fsck_msdosfs/main.c,v 1.4.2.1 2001/08/01 05:47:56 obrien Exp $
34  */
35 
36 
37 #include <sys/cdefs.h>
38 
39 #include <stdlib.h>
40 #include <string.h>
41 #include <ctype.h>
42 #include <stdio.h>
43 #include <unistd.h>
44 #include <errno.h>
45 #include <stdarg.h>
46 
47 #include "fsutil.h"
48 #include "ext.h"
49 
50 int alwaysno;		/* assume "no" for all questions */
51 int alwaysyes;		/* assume "yes" for all questions */
52 int preen;		/* set when preening */
53 int rdonly;		/* device is opened read only (supersedes above) */
54 
55 static void usage(void);
56 int main(int, char **);
57 
58 static void
59 usage(void)
60 {
61 	errexit("Usage: fsck_msdos [-fnpy] filesystem ... \n");
62 }
63 
64 int
65 main(int argc, char **argv)
66 {
67 	int ret = 0, erg;
68 	int ch;
69 
70 	while ((ch = getopt(argc, argv, "fFnpy")) != -1) {
71 		switch (ch) {
72 		case 'f':
73 			/*
74 			 * We are always forced, since we don't
75 			 * have a clean flag
76 			 */
77 			break;
78 		case 'F':
79 			/* We can never run in background */
80 			exit(5);
81 			break;
82 		case 'n':
83 			alwaysno = 1;
84 			alwaysyes = preen = 0;
85 			break;
86 		case 'y':
87 			alwaysyes = 1;
88 			alwaysno = preen = 0;
89 			break;
90 
91 		case 'p':
92 			preen = 1;
93 			alwaysyes = alwaysno = 0;
94 			break;
95 
96 		default:
97 			usage();
98 			break;
99 		}
100 	}
101 	argc -= optind;
102 	argv += optind;
103 
104 	if (!argc)
105 		usage();
106 
107 	while (--argc >= 0) {
108 		setcdevname(*argv, preen);
109 		erg = checkfilesys(*argv++);
110 		if (erg > ret)
111 			ret = erg;
112 	}
113 
114 	return ret;
115 }
116 
117 
118 /*VARARGS*/
119 int
120 ask(int def, const char *fmt, ...)
121 {
122 	va_list ap;
123 
124 	char prompt[256];
125 	int c;
126 
127 	if (preen) {
128 		if (rdonly)
129 			def = 0;
130 		if (def)
131 			printf("FIXED\n");
132 		return def;
133 	}
134 
135 	va_start(ap, fmt);
136 	vsnprintf(prompt, sizeof(prompt), fmt, ap);
137 	if (alwaysyes || rdonly) {
138 		printf("%s? %s\n", prompt, rdonly ? "no" : "yes");
139 		return !rdonly;
140 	}
141 	do {
142 		printf("%s? [yn] ", prompt);
143 		fflush(stdout);
144 		c = getchar();
145 		while (c != '\n' && getchar() != '\n')
146 			if (feof(stdin))
147 				return 0;
148 	} while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
149 	return c == 'y' || c == 'Y';
150 }
151