1 /* 2 * Copyright (c) 1980, 1986 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 char copyright[] = 36 "@(#) Copyright (c) 1980, 1986 The Regents of the University of California.\n\ 37 All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 /*static char sccsid[] = "from: @(#)main.c 5.27 (Berkeley) 8/7/90";*/ 42 static char rcsid[] = "$Id: main.c,v 1.12 1994/04/25 18:28:29 cgd Exp $"; 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/time.h> 47 #include <ufs/dinode.h> 48 #include <ufs/fs.h> 49 #include <fstab.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <ctype.h> 53 #include <stdio.h> 54 #include "fsck.h" 55 56 void catch(), catchquit(), voidquit(); 57 int returntosingle; 58 59 main(argc, argv) 60 int argc; 61 char *argv[]; 62 { 63 int ch; 64 int ret, maxrun = 0; 65 extern int docheck(), checkfilesys(); 66 extern char *optarg; 67 extern int optind; 68 69 sync(); 70 while ((ch = getopt(argc, argv, "cdpnNyYb:l:m:")) != EOF) { 71 switch (ch) { 72 case 'p': 73 preen++; 74 break; 75 76 case 'b': 77 bflag = argtoi('b', "number", optarg, 10); 78 printf("Alternate super block location: %d\n", bflag); 79 break; 80 81 case 'c': 82 cvtflag++; 83 break; 84 85 case 'd': 86 debug++; 87 break; 88 89 case 'l': 90 maxrun = argtoi('l', "number", optarg, 10); 91 break; 92 93 case 'm': 94 lfmode = argtoi('m', "mode", optarg, 8); 95 if (lfmode &~ 07777) 96 errexit("bad mode to -m: %o\n", lfmode); 97 printf("** lost+found creation mode %o\n", lfmode); 98 break; 99 100 case 'n': 101 case 'N': 102 nflag++; 103 yflag = 0; 104 break; 105 106 case 'y': 107 case 'Y': 108 yflag++; 109 nflag = 0; 110 break; 111 112 default: 113 errexit("%c option?\n", ch); 114 } 115 } 116 argc -= optind; 117 argv += optind; 118 if (signal(SIGINT, SIG_IGN) != SIG_IGN) 119 (void)signal(SIGINT, catch); 120 if (preen) 121 (void)signal(SIGQUIT, catchquit); 122 if (argc) { 123 while (argc-- > 0) 124 (void)checkfilesys(*argv++, (char *)0, 0L, 0); 125 exit(0); 126 } 127 ret = checkfstab(preen, maxrun, docheck, checkfilesys); 128 if (returntosingle) 129 exit(2); 130 exit(ret); 131 } 132 133 argtoi(flag, req, str, base) 134 int flag; 135 char *req, *str; 136 int base; 137 { 138 char *cp; 139 int ret; 140 141 ret = (int)strtol(str, &cp, base); 142 if (cp == str || *cp) 143 errexit("-%c flag requires a %s\n", flag, req); 144 return (ret); 145 } 146 147 /* 148 * Determine whether a filesystem should be checked. 149 */ 150 docheck(fsp) 151 register struct fstab *fsp; 152 { 153 154 if (strcmp(fsp->fs_vfstype, "ufs") || 155 (strcmp(fsp->fs_type, FSTAB_RW) && 156 strcmp(fsp->fs_type, FSTAB_RO)) || 157 fsp->fs_passno == 0) 158 return (0); 159 return (1); 160 } 161 162 /* 163 * Check the specified filesystem. 164 */ 165 /* ARGSUSED */ 166 checkfilesys(filesys, mntpt, auxdata, child) 167 char *filesys, *mntpt; 168 long auxdata; 169 { 170 daddr_t n_ffree, n_bfree; 171 struct dups *dp; 172 struct zlncnt *zlnp; 173 int clean; 174 175 if (preen && child) 176 (void)signal(SIGQUIT, voidquit); 177 devname = filesys; 178 if (debug && preen) 179 pwarn("starting\n"); 180 if (setup(filesys) == 0) { 181 if (preen) 182 pfatal("CAN'T CHECK FILE SYSTEM."); 183 return (0); 184 } 185 186 /* 187 * 0: check whether file system is already clean 188 */ 189 clean = preen && (sblock.fs_state == FSOKAY) && sblock.fs_clean; 190 191 #ifdef notyet 192 if (clean) { 193 #else 194 if (0) { 195 #endif 196 printf("** filesystem clean -- skipping checks\n"); 197 } else { 198 /* 199 * 1: scan inodes tallying blocks used 200 */ 201 if (preen == 0) { 202 printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 203 if (hotroot) 204 printf("** Root file system\n"); 205 printf("** Phase 1 - Check Blocks and Sizes\n"); 206 } 207 pass1(); 208 209 /* 210 * 1b: locate first references to duplicates, if any 211 */ 212 if (duplist) { 213 if (preen) 214 pfatal("INTERNAL ERROR: dups with -p"); 215 printf("** Phase 1b - Rescan For More DUPS\n"); 216 pass1b(); 217 } 218 219 /* 220 * 2: traverse directories from root to mark all connected 221 * directories 222 */ 223 if (preen == 0) 224 printf("** Phase 2 - Check Pathnames\n"); 225 pass2(); 226 227 /* 228 * 3: scan inodes looking for disconnected directories 229 */ 230 if (preen == 0) 231 printf("** Phase 3 - Check Connectivity\n"); 232 pass3(); 233 234 /* 235 * 4: scan inodes looking for disconnected files; check 236 * reference counts 237 */ 238 if (preen == 0) 239 printf("** Phase 4 - Check Reference Counts\n"); 240 pass4(); 241 242 /* 243 * 5: check and repair resource counts in cylinder groups 244 */ 245 if (preen == 0) 246 printf("** Phase 5 - Check Cyl groups\n"); 247 pass5(); 248 } 249 250 /* 251 * print out summary statistics 252 */ 253 n_ffree = sblock.fs_cstotal.cs_nffree; 254 n_bfree = sblock.fs_cstotal.cs_nbfree; 255 pwarn("%ld files, %ld used, %ld free ", 256 n_files, n_blks, n_ffree + sblock.fs_frag * n_bfree); 257 printf("(%ld frags, %ld blocks, %.1f%% fragmentation)\n", 258 n_ffree, n_bfree, (float)(n_ffree * 100) / sblock.fs_dsize); 259 if (debug && 260 (n_files -= maxino - ROOTINO - sblock.fs_cstotal.cs_nifree)) 261 printf("%ld files missing\n", n_files); 262 if (debug) { 263 n_blks += sblock.fs_ncg * 264 (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 265 n_blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 266 n_blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 267 if (n_blks -= maxfsblock - (n_ffree + sblock.fs_frag * n_bfree)) 268 printf("%ld blocks missing\n", n_blks); 269 if (duplist != NULL) { 270 printf("The following duplicate blocks remain:"); 271 for (dp = duplist; dp; dp = dp->next) 272 printf(" %ld,", dp->dup); 273 printf("\n"); 274 } 275 if (zlnhead != NULL) { 276 printf("The following zero link count inodes remain:"); 277 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 278 printf(" %lu,", zlnp->zlncnt); 279 printf("\n"); 280 } 281 } 282 zlnhead = (struct zlncnt *)0; 283 duplist = (struct dups *)0; 284 inocleanup(); 285 #ifdef notyet 286 if (!clean && !nflag && fswritefd != -1) { 287 sblock.fs_state = FSOKAY; 288 sblock.fs_clean = FS_CLEANFREQ; 289 fsmodified = 1; 290 } 291 #endif 292 if (fsmodified) { 293 (void)time(&sblock.fs_time); 294 sbdirty(); 295 } 296 ckfini(); 297 free(blockmap); 298 free(statemap); 299 free((char *)lncntp); 300 if (!fsmodified) 301 return (0); 302 if (!preen) { 303 printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 304 if (hotroot) 305 printf("\n***** REBOOT NETBSD *****\n"); 306 } 307 if (hotroot) { 308 sync(); 309 return (4); 310 } 311 return (0); 312 } 313