1 /* $OpenBSD: main.c,v 1.22 2015/11/23 19:19:30 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 if (pledge("stdio rpath wpath disklabel", NULL) == -1) 61 err(1, "pledge"); 62 63 while ((ch = getopt(argc, argv, "pynf")) != -1) { 64 switch (ch) { 65 case 'f': 66 /* Ignore for consistency with fsck_ffs */ 67 break; 68 69 case 'n': 70 alwaysno = 1; 71 alwaysyes = preen = 0; 72 break; 73 74 case 'y': 75 alwaysyes = 1; 76 alwaysno = preen = 0; 77 break; 78 79 case 'p': 80 preen = 1; 81 alwaysyes = alwaysno = 0; 82 break; 83 84 default: 85 usage(); 86 break; 87 } 88 } 89 argc -= optind; 90 argv += optind; 91 92 if (argc != 1) 93 usage(); 94 95 setcdevname(*argv, NULL, preen); 96 exit (checkfilesys(blockcheck(*argv))); 97 } 98 99 int 100 ask(int def, const char *fmt, ...) 101 { 102 va_list ap; 103 104 char prompt[256]; 105 int c; 106 107 if (preen) { 108 if (rdonly) 109 def = 0; 110 if (def) 111 printf("FIXED\n"); 112 return (def); 113 } 114 115 va_start(ap, fmt); 116 vsnprintf(prompt, sizeof(prompt), fmt, ap); 117 va_end(ap); 118 if (alwaysyes || rdonly) { 119 printf("%s? %s\n", prompt, rdonly ? "no" : "yes"); 120 return (!rdonly); 121 } 122 do { 123 printf("%s? [Fyn] ", prompt); 124 fflush(stdout); 125 c = getchar(); 126 if (c == 'F') { 127 alwaysyes = 1; 128 return (1); 129 } 130 while (c != '\n' && getchar() != '\n') 131 if (feof(stdin)) 132 return (0); 133 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); 134 return (c == 'y' || c == 'Y'); 135 } 136