1 /* $OpenBSD: main.c,v 1.24 2018/09/24 21:26:02 deraadt 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 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 30 #include <stdlib.h> 31 #include <string.h> 32 #include <ctype.h> 33 #include <stdio.h> 34 #include <unistd.h> 35 #include <errno.h> 36 #include <stdarg.h> 37 #include <err.h> 38 39 #include "ext.h" 40 41 int alwaysno; /* assume "no" for all questions */ 42 int alwaysyes; /* assume "yes" for all questions */ 43 int preen; /* set when preening */ 44 int rdonly; /* device is opened read only (supersedes above) */ 45 46 static void usage(void); 47 int main(int, char **); 48 49 static void 50 usage(void) 51 { 52 errexit("usage: fsck_msdos [-fnpy] filesystem\n"); 53 } 54 55 int 56 main(int argc, char *argv[]) 57 { 58 int ch; 59 60 checkroot(); 61 62 while ((ch = getopt(argc, argv, "pynf")) != -1) { 63 switch (ch) { 64 case 'f': 65 /* Ignore for consistency with fsck_ffs */ 66 break; 67 68 case 'n': 69 alwaysno = 1; 70 alwaysyes = preen = 0; 71 break; 72 73 case 'y': 74 alwaysyes = 1; 75 alwaysno = preen = 0; 76 break; 77 78 case 'p': 79 preen = 1; 80 alwaysyes = alwaysno = 0; 81 break; 82 83 default: 84 usage(); 85 break; 86 } 87 } 88 argc -= optind; 89 argv += optind; 90 91 if (argc != 1) 92 usage(); 93 94 setcdevname(*argv, NULL, preen); 95 exit (checkfilesys(blockcheck(*argv))); 96 } 97 98 int 99 ask(int def, const char *fmt, ...) 100 { 101 va_list ap; 102 103 char prompt[256]; 104 int c; 105 106 if (preen) { 107 if (rdonly) 108 def = 0; 109 if (def) 110 printf("FIXED\n"); 111 return (def); 112 } 113 114 va_start(ap, fmt); 115 vsnprintf(prompt, sizeof(prompt), fmt, ap); 116 va_end(ap); 117 if (alwaysyes || rdonly) { 118 printf("%s? %s\n", prompt, rdonly ? "no" : "yes"); 119 return (!rdonly); 120 } 121 do { 122 printf("%s? [Fyn] ", prompt); 123 fflush(stdout); 124 c = getchar(); 125 if (c == 'F') { 126 alwaysyes = 1; 127 return (1); 128 } 129 while (c != '\n' && getchar() != '\n') 130 if (feof(stdin)) 131 return (0); 132 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); 133 return (c == 'y' || c == 'Y'); 134 } 135