1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (C) 1995 Wolfgang Solfrank 5 * Copyright (c) 1995 Martin Husemann 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <stdlib.h> 29 #include <string.h> 30 #include <stdio.h> 31 #include <unistd.h> 32 #include <errno.h> 33 #include <stdarg.h> 34 35 #include "fsutil.h" 36 #include "ext.h" 37 38 int alwaysno; /* assume "no" for all questions */ 39 int alwaysyes; /* assume "yes" for all questions */ 40 int preen; /* set when preening */ 41 int rdonly; /* device is opened read only (supersedes above) */ 42 43 static void usage(void) __dead2; 44 45 static void 46 usage(void) 47 { 48 errexit("Usage: fsck_msdos [-fnpy] filesystem ... \n"); 49 } 50 51 int 52 main(int argc, char **argv) 53 { 54 int ret = 0, erg; 55 int ch; 56 57 while ((ch = getopt(argc, argv, "fFnpy")) != -1) { 58 switch (ch) { 59 case 'f': 60 /* 61 * We are always forced, since we don't 62 * have a clean flag 63 */ 64 break; 65 case 'F': 66 /* 67 * We can never run in the background. We must exit 68 * silently with a nonzero exit code so that fsck(8) 69 * can probe our support for -F. The exit code 70 * doesn't really matter, but we use an unusual one 71 * in case someone tries -F directly. The -F flag 72 * is intentionally left out of the usage message. 73 */ 74 exit(5); 75 case 'n': 76 alwaysno = 1; 77 alwaysyes = 0; 78 break; 79 case 'y': 80 alwaysyes = 1; 81 alwaysno = 0; 82 break; 83 84 case 'p': 85 preen = 1; 86 break; 87 88 default: 89 usage(); 90 break; 91 } 92 } 93 argc -= optind; 94 argv += optind; 95 96 if (!argc) 97 usage(); 98 99 while (--argc >= 0) { 100 setcdevname(*argv, preen); 101 erg = checkfilesys(*argv++); 102 if (erg > ret) 103 ret = erg; 104 } 105 106 return ret; 107 } 108 109 110 /*VARARGS*/ 111 int 112 ask(int def, const char *fmt, ...) 113 { 114 va_list ap; 115 116 char prompt[256]; 117 int c; 118 119 if (alwaysyes || alwaysno || rdonly) 120 def = (alwaysyes && !rdonly && !alwaysno); 121 122 if (preen) { 123 if (def) 124 printf("FIXED\n"); 125 return def; 126 } 127 128 va_start(ap, fmt); 129 vsnprintf(prompt, sizeof(prompt), fmt, ap); 130 va_end(ap); 131 if (alwaysyes || alwaysno || rdonly) { 132 printf("%s? %s\n", prompt, def ? "yes" : "no"); 133 return def; 134 } 135 do { 136 printf("%s? [yn] ", prompt); 137 fflush(stdout); 138 c = getchar(); 139 while (c != '\n' && getchar() != '\n') 140 if (feof(stdin)) 141 return 0; 142 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); 143 return c == 'y' || c == 'Y'; 144 } 145