main.c revision 1.1
1 /* $NetBSD: main.c,v 1.1 1996/05/14 17:39:36 ws Exp $ */ 2 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Martin Husemann 18 * and Wolfgang Solfrank. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 36 #ifndef lint 37 static char rcsid[] = "$NetBSD: main.c,v 1.1 1996/05/14 17:39:36 ws Exp $"; 38 #endif /* not lint */ 39 40 #include <stdlib.h> 41 #include <string.h> 42 #include <ctype.h> 43 #include <stdio.h> 44 #include <unistd.h> 45 #include <errno.h> 46 #if __STDC__ 47 #include <stdarg.h> 48 #else 49 #include <varargs.h> 50 #endif 51 52 #include "ext.h" 53 54 int alwaysno; /* assume "no" for all questions */ 55 int alwaysyes; /* assume "yes" for all questions */ 56 int preen; /* set when preening */ 57 int rdonly; /* device is opened read only (supersedes above) */ 58 59 char *fname; /* filesystem currently checked */ 60 61 static void 62 usage() 63 { 64 errexit("Usage: fsck_msdos [-pny] filesystem ... \n"); 65 } 66 67 int 68 main(argc, argv) 69 int argc; 70 char **argv; 71 { 72 extern int optind; 73 int ret = 0, erg; 74 int ch; 75 76 while ((ch = getopt(argc, argv, "vpyn")) != EOF) { 77 switch (ch) { 78 case 'n': 79 alwaysno = 1; 80 alwaysyes = preen = 0; 81 break; 82 case 'y': 83 alwaysyes = 1; 84 alwaysno = preen = 0; 85 break; 86 87 case 'p': 88 preen = 1; 89 alwaysyes = alwaysno = 0; 90 break; 91 92 default: 93 usage(); 94 break; 95 } 96 } 97 argc -= optind; 98 argv += optind; 99 100 if (!argc) 101 usage(); 102 103 while (argc-- > 0) { 104 erg = checkfilesys(fname = *argv++); 105 if (erg > ret) 106 ret = erg; 107 } 108 exit(ret); 109 } 110 111 /*VARARGS*/ 112 void 113 #if __STDC__ 114 errexit(const char *fmt, ...) 115 #else 116 errexit(fmt, va_alist) 117 char *fmt; 118 va_dcl 119 #endif 120 { 121 va_list ap; 122 123 #if __STDC__ 124 va_start(ap, fmt); 125 #else 126 va_start(ap); 127 #endif 128 vprintf(fmt, ap); 129 va_end(ap); 130 exit(8); 131 } 132 133 /*VARARGS*/ 134 void 135 #if __STDC__ 136 pfatal(const char *fmt, ...) 137 #else 138 pfatal(fmt, va_alist) 139 char *fmt; 140 va_dcl 141 #endif 142 { 143 va_list ap; 144 145 if (preen) 146 printf("%s: ", fname); 147 #if __STDC__ 148 va_start(ap, fmt); 149 #else 150 va_start(ap); 151 #endif 152 vprintf(fmt, ap); 153 va_end(ap); 154 printf("\n"); 155 if (preen) 156 exit(8); 157 } 158 159 /*VARARGS*/ 160 void 161 #if __STDC__ 162 pwarn(const char *fmt, ...) 163 #else 164 pwarn(fmt, va_alist) 165 char *fmt; 166 va_dcl 167 #endif 168 { 169 va_list ap; 170 171 if (preen) 172 printf("%s: ", fname); 173 #if __STDC__ 174 va_start(ap, fmt); 175 #else 176 va_start(ap); 177 #endif 178 vprintf(fmt, ap); 179 va_end(ap); 180 } 181 182 #if sun 183 char * 184 strerror(n) 185 int n; 186 { 187 extern int sys_nerr; 188 extern char *sys_errlist[]; 189 static char alt[80]; 190 191 if (n < sys_nerr) 192 return sys_errlist[n]; 193 sprintf(alt, "Unknown error %d", n); 194 return alt; 195 } 196 #endif 197 198 void 199 perror(s) 200 const char *s; 201 { 202 pfatal("%s (%s)", s, strerror(errno)); 203 } 204 205 /*VARARGS*/ 206 int 207 #if __STDC__ 208 ask(int def, const char *fmt, ...) 209 #else 210 ask(def, fmt, va_alist) 211 int def; 212 char *fmt; 213 va_dcl 214 #endif 215 { 216 va_list ap; 217 218 char prompt[256]; 219 int c; 220 221 if (preen) { 222 if (rdonly) 223 def = 0; 224 if (def) 225 printf("FIXED\n"); 226 return def; 227 } 228 229 #if __STDC__ 230 va_start(ap, fmt); 231 #else 232 va_start(ap); 233 #endif 234 #if sun 235 vsprintf(prompt, fmt, ap); 236 #else 237 vsnprintf(prompt, sizeof(prompt), fmt, ap); 238 #endif 239 if (alwaysyes || rdonly) { 240 printf("%s? %s\n", prompt, rdonly ? "no" : "yes"); 241 return !rdonly; 242 } 243 do { 244 printf("%s? [yn] ", prompt); 245 fflush(stdout); 246 c = getchar(); 247 while (c != '\n' && getchar() != '\n') 248 if (feof(stdin)) 249 return 0; 250 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); 251 return c == 'y' || c == 'Y'; 252 } 253
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