1 /* $OpenBSD: main.c,v 1.21 2015/10/14 14:33:45 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 38 #include "ext.h" 39 40 int alwaysno; /* assume "no" for all questions */ 41 int alwaysyes; /* assume "yes" for all questions */ 42 int preen; /* set when preening */ 43 int rdonly; /* device is opened read only (supersedes above) */ 44 45 static void usage(void); 46 int main(int, char **); 47 48 static void 49 usage(void) 50 { 51 errexit("usage: fsck_msdos [-fnpy] filesystem\n"); 52 } 53 54 int 55 main(int argc, char *argv[]) 56 { 57 int ch; 58 59 while ((ch = getopt(argc, argv, "pynf")) != -1) { 60 switch (ch) { 61 case 'f': 62 /* Ignore for consistency with fsck_ffs */ 63 break; 64 65 case 'n': 66 alwaysno = 1; 67 alwaysyes = preen = 0; 68 break; 69 70 case 'y': 71 alwaysyes = 1; 72 alwaysno = preen = 0; 73 break; 74 75 case 'p': 76 preen = 1; 77 alwaysyes = alwaysno = 0; 78 break; 79 80 default: 81 usage(); 82 break; 83 } 84 } 85 argc -= optind; 86 argv += optind; 87 88 if (argc != 1) 89 usage(); 90 91 setcdevname(*argv, NULL, preen); 92 exit (checkfilesys(blockcheck(*argv))); 93 } 94 95 int 96 ask(int def, const char *fmt, ...) 97 { 98 va_list ap; 99 100 char prompt[256]; 101 int c; 102 103 if (preen) { 104 if (rdonly) 105 def = 0; 106 if (def) 107 printf("FIXED\n"); 108 return (def); 109 } 110 111 va_start(ap, fmt); 112 vsnprintf(prompt, sizeof(prompt), fmt, ap); 113 va_end(ap); 114 if (alwaysyes || rdonly) { 115 printf("%s? %s\n", prompt, rdonly ? "no" : "yes"); 116 return (!rdonly); 117 } 118 do { 119 printf("%s? [Fyn] ", prompt); 120 fflush(stdout); 121 c = getchar(); 122 if (c == 'F') { 123 alwaysyes = 1; 124 return (1); 125 } 126 while (c != '\n' && getchar() != '\n') 127 if (feof(stdin)) 128 return (0); 129 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); 130 return (c == 'y' || c == 'Y'); 131 } 132