xref: /openbsd/sbin/fsck_msdos/main.c (revision f8629afc)
1 /*	$OpenBSD: main.c,v 1.8 1997/07/25 19:13:15 mickey Exp $	*/
2 /*	$NetBSD: main.c,v 1.8 1996/10/17 20:29:53 cgd Exp $	*/
3 
4 /*
5  * Copyright (C) 1995 Wolfgang Solfrank
6  * Copyright (c) 1995 Martin Husemann
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by Martin Husemann
19  *	and Wolfgang Solfrank.
20  * 4. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
28  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  */
35 
36 
37 #ifndef lint
38 static char rcsid[] = "$OpenBSD: main.c,v 1.8 1997/07/25 19:13:15 mickey Exp $";
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 #ifdef __STDC__
48 #include <stdarg.h>
49 #else
50 #include <varargs.h>
51 #endif
52 
53 #include "ext.h"
54 
55 int alwaysno;		/* assume "no" for all questions */
56 int alwaysyes;		/* assume "yes" for all questions */
57 int preen;		/* set when preening */
58 int rdonly;		/* device is opened read only (supersedes above) */
59 
60 static void usage __P((void));
61 int main __P((int, char **));
62 
63 static void
64 usage()
65 {
66 	errexit("Usage: fsck_msdos [-fnpy] filesystem ... \n");
67 }
68 
69 int
70 main(argc, argv)
71 	int argc;
72 	char **argv;
73 {
74 	extern int optind;
75 	int ret = 0, erg;
76 	int ch;
77 
78 	while ((ch = getopt(argc, argv, "pynf")) != -1) {
79 		switch (ch) {
80 		case 'f':
81 			/* Ignore for consistency with fsck_ffs */
82 			break;
83 
84 		case 'n':
85 			alwaysno = 1;
86 			alwaysyes = preen = 0;
87 			break;
88 
89 		case 'y':
90 			alwaysyes = 1;
91 			alwaysno = preen = 0;
92 			break;
93 
94 		case 'p':
95 			preen = 1;
96 			alwaysyes = alwaysno = 0;
97 			break;
98 
99 		default:
100 			usage();
101 			break;
102 		}
103 	}
104 	argc -= optind;
105 	argv += optind;
106 
107 	if (!argc)
108 		usage();
109 
110 	while (argc-- > 0) {
111 		setcdevname(*argv, preen);
112 		erg = checkfilesys(*argv++);
113 		if (erg > ret)
114 			ret = erg;
115 	}
116 	exit(ret);
117 }
118 
119 /*VARARGS*/
120 int
121 #ifdef __STDC__
122 ask(int def, const char *fmt, ...)
123 #else
124 ask(def, fmt, va_alist)
125 	int def;
126 	char *fmt;
127 	va_dcl
128 #endif
129 {
130 	va_list ap;
131 
132 	char prompt[256];
133 	int c;
134 
135 	if (preen) {
136 		if (rdonly)
137 			def = 0;
138 		if (def)
139 			printf("FIXED\n");
140 		return (def);
141 	}
142 
143 #ifdef __STDC__
144 	va_start(ap, fmt);
145 #else
146 	va_start(ap);
147 #endif
148 	vsnprintf(prompt, sizeof(prompt), fmt, ap);
149 	if (alwaysyes || rdonly) {
150 		printf("%s? %s\n", prompt, rdonly ? "no" : "yes");
151 		return (!rdonly);
152 	}
153 	do {
154 		printf("%s? [yn] ", prompt);
155 		fflush(stdout);
156 		c = getchar();
157 		while (c != '\n' && getchar() != '\n')
158 			if (feof(stdin))
159 				return (0);
160 	} while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
161 	return (c == 'y' || c == 'Y');
162 }
163