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      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 $");
     37 static const char rcsid[] =
     38   "$FreeBSD: src/sbin/fsck_msdosfs/main.c,v 1.16 2009/06/10 19:02:54 avg 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 #include <stdarg.h>
     48 
     49 #include "fsutil.h"
     50 #include "ext.h"
     51 
     52 int alwaysno;		/* assume "no" for all questions */
     53 int alwaysyes;		/* assume "yes" for all questions */
     54 int preen;		/* set when preening */
     55 int rdonly;		/* device is opened read only (supersedes above) */
     56 int skipclean;		/* skip clean file systems if preening */
     57 
     58 static void usage(void);
     59 
     60 static void
     61 usage(void)
     62 {
     63 
     64 	fprintf(stderr, "%s\n%s\n",
     65 	    "usage: fsck_msdosfs -p [-f] filesystem ...",
     66 	    "       fsck_msdosfs [-ny] filesystem ...");
     67 	exit(1);
     68 }
     69 
     70 int
     71 main(int argc, char **argv)
     72 {
     73 	int ret = 0, erg;
     74 	int ch;
     75 
     76 	skipclean = 1;
     77 	while ((ch = getopt(argc, argv, "CfFnpy")) != -1) {
     78 		switch (ch) {
     79 		case 'C': /* for fsck_ffs compatibility */
     80 			break;
     81 		case 'f':
     82 			skipclean = 0;
     83 			break;
     84 		case 'F':
     85 			/*
     86 			 * We can never run in the background.  We must exit
     87 			 * silently with a nonzero exit code so that fsck(8)
     88 			 * can probe our support for -F.  The exit code
     89 			 * doesn't really matter, but we use an unusual one
     90 			 * in case someone tries -F directly.  The -F flag
     91 			 * is intentionally left out of the usage message.
     92 			 */
     93 			exit(5);
     94 		case 'n':
     95 			alwaysno = 1;
     96 			alwaysyes = preen = 0;
     97 			break;
     98 		case 'y':
     99 			alwaysyes = 1;
    100 			alwaysno = preen = 0;
    101 			break;
    102 
    103 		case 'p':
    104 			preen = 1;
    105 			alwaysyes = alwaysno = 0;
    106 			break;
    107 
    108 		default:
    109 			usage();
    110 			break;
    111 		}
    112 	}
    113 	argc -= optind;
    114 	argv += optind;
    115 
    116 	if (!argc)
    117 		usage();
    118 
    119 	while (--argc >= 0) {
    120 //		setcdevname(*argv, preen);
    121 		erg = checkfilesys(*argv++);
    122 		if (erg > ret)
    123 			ret = erg;
    124 	}
    125 
    126 	return ret;
    127 }
    128 
    129 
    130 /*VARARGS*/
    131 int
    132 ask(int def, const char *fmt, ...)
    133 {
    134 	va_list ap;
    135 
    136 	char prompt[256];
    137 	int c;
    138 
    139 	if (preen) {
    140 		if (rdonly)
    141 			def = 0;
    142 		if (def)
    143 			printf("FIXED\n");
    144 		return def;
    145 	}
    146 
    147 	va_start(ap, fmt);
    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