xref: /dragonfly/sbin/fsck_msdosfs/main.c (revision 9f7604d7)
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 #include <stdlib.h>
37 #include <string.h>
38 #include <ctype.h>
39 #include <stdio.h>
40 #include <unistd.h>
41 #include <errno.h>
42 #include <stdarg.h>
43 
44 #include "fsutil.h"
45 #include "ext.h"
46 
47 int alwaysno;		/* assume "no" for all questions */
48 int alwaysyes;		/* assume "yes" for all questions */
49 int preen;		/* set when preening */
50 int rdonly;		/* device is opened read only (supersedes above) */
51 
52 static void usage(void);
53 int main(int, char **);
54 
55 static void
56 usage(void)
57 {
58 	errexit("Usage: fsck_msdos [-fnpy] filesystem ... \n");
59 }
60 
61 int
62 main(int argc, char **argv)
63 {
64 	int ret = 0, erg;
65 	int ch;
66 
67 	while ((ch = getopt(argc, argv, "fFnpy")) != -1) {
68 		switch (ch) {
69 		case 'f':
70 			/*
71 			 * We are always forced, since we don't
72 			 * have a clean flag
73 			 */
74 			break;
75 		case 'F':
76 			/* We can never run in background */
77 			exit(5);
78 			break;
79 		case 'n':
80 			alwaysno = 1;
81 			alwaysyes = preen = 0;
82 			break;
83 		case 'y':
84 			alwaysyes = 1;
85 			alwaysno = preen = 0;
86 			break;
87 
88 		case 'p':
89 			preen = 1;
90 			alwaysyes = alwaysno = 0;
91 			break;
92 
93 		default:
94 			usage();
95 			break;
96 		}
97 	}
98 	argc -= optind;
99 	argv += optind;
100 
101 	if (!argc)
102 		usage();
103 
104 	while (--argc >= 0) {
105 		setcdevname(*argv, preen);
106 		erg = checkfilesys(*argv++);
107 		if (erg > ret)
108 			ret = erg;
109 	}
110 
111 	return ret;
112 }
113 
114 
115 /*VARARGS*/
116 int
117 ask(int def, const char *fmt, ...)
118 {
119 	va_list ap;
120 
121 	char prompt[256];
122 	int c;
123 
124 	if (preen) {
125 		if (rdonly)
126 			def = 0;
127 		if (def)
128 			printf("FIXED\n");
129 		return def;
130 	}
131 
132 	va_start(ap, fmt);
133 	vsnprintf(prompt, sizeof(prompt), fmt, ap);
134 	if (alwaysyes || rdonly) {
135 		printf("%s? %s\n", prompt, rdonly ? "no" : "yes");
136 		return !rdonly;
137 	}
138 	do {
139 		printf("%s? [yn] ", prompt);
140 		fflush(stdout);
141 		c = getchar();
142 		while (c != '\n' && getchar() != '\n')
143 			if (feof(stdin))
144 				return 0;
145 	} while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
146 	return c == 'y' || c == 'Y';
147 }
148