Commit | Line | Data |
---|---|---|
15637ed4 RG |
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[] = "@(#)main.c 5.27 (Berkeley) 8/7/90"; | |
42 | #endif /* not lint */ | |
43 | ||
44 | #include <sys/param.h> | |
45 | #include <ufs/dinode.h> | |
46 | #include <ufs/fs.h> | |
47 | #include <fstab.h> | |
48 | #include <stdlib.h> | |
49 | #include <string.h> | |
50 | #include <ctype.h> | |
51 | #include <stdio.h> | |
52 | #include "fsck.h" | |
53 | ||
54 | void catch(), catchquit(), voidquit(); | |
55 | int returntosingle; | |
56 | ||
57 | main(argc, argv) | |
58 | int argc; | |
59 | char *argv[]; | |
60 | { | |
61 | int ch; | |
62 | int ret, maxrun = 0; | |
63 | extern int docheck(), checkfilesys(); | |
64 | extern char *optarg; | |
65 | extern int optind; | |
66 | ||
67 | sync(); | |
68 | while ((ch = getopt(argc, argv, "cdpnNyYb:l:m:")) != EOF) { | |
69 | switch (ch) { | |
70 | case 'p': | |
71 | preen++; | |
72 | break; | |
73 | ||
74 | case 'b': | |
75 | bflag = argtoi('b', "number", optarg, 10); | |
76 | printf("Alternate super block location: %d\n", bflag); | |
77 | break; | |
78 | ||
79 | case 'c': | |
80 | cvtflag++; | |
81 | break; | |
82 | ||
83 | case 'd': | |
84 | debug++; | |
85 | break; | |
86 | ||
87 | case 'l': | |
88 | maxrun = argtoi('l', "number", optarg, 10); | |
89 | break; | |
90 | ||
91 | case 'm': | |
92 | lfmode = argtoi('m', "mode", optarg, 8); | |
93 | if (lfmode &~ 07777) | |
94 | errexit("bad mode to -m: %o\n", lfmode); | |
95 | printf("** lost+found creation mode %o\n", lfmode); | |
96 | break; | |
97 | ||
98 | case 'n': | |
99 | case 'N': | |
100 | nflag++; | |
101 | yflag = 0; | |
102 | break; | |
103 | ||
104 | case 'y': | |
105 | case 'Y': | |
106 | yflag++; | |
107 | nflag = 0; | |
108 | break; | |
109 | ||
110 | default: | |
111 | errexit("%c option?\n", ch); | |
112 | } | |
113 | } | |
114 | argc -= optind; | |
115 | argv += optind; | |
116 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) | |
117 | (void)signal(SIGINT, catch); | |
118 | if (preen) | |
119 | (void)signal(SIGQUIT, catchquit); | |
120 | if (argc) { | |
121 | while (argc-- > 0) | |
122 | (void)checkfilesys(*argv++, (char *)0, 0L, 0); | |
123 | exit(0); | |
124 | } | |
125 | ret = checkfstab(preen, maxrun, docheck, checkfilesys); | |
126 | if (returntosingle) | |
127 | exit(2); | |
128 | exit(ret); | |
129 | } | |
130 | ||
131 | argtoi(flag, req, str, base) | |
132 | int flag; | |
133 | char *req, *str; | |
134 | int base; | |
135 | { | |
136 | char *cp; | |
137 | int ret; | |
138 | ||
139 | ret = (int)strtol(str, &cp, base); | |
140 | if (cp == str || *cp) | |
141 | errexit("-%c flag requires a %s\n", flag, req); | |
142 | return (ret); | |
143 | } | |
144 | ||
145 | /* | |
146 | * Determine whether a filesystem should be checked. | |
147 | */ | |
148 | docheck(fsp) | |
149 | register struct fstab *fsp; | |
150 | { | |
151 | ||
152 | if (strcmp(fsp->fs_vfstype, "ufs") || | |
153 | (strcmp(fsp->fs_type, FSTAB_RW) && | |
154 | strcmp(fsp->fs_type, FSTAB_RO)) || | |
155 | fsp->fs_passno == 0) | |
156 | return (0); | |
157 | return (1); | |
158 | } | |
159 | ||
160 | /* | |
161 | * Check the specified filesystem. | |
162 | */ | |
163 | /* ARGSUSED */ | |
164 | checkfilesys(filesys, mntpt, auxdata, child) | |
165 | char *filesys, *mntpt; | |
166 | long auxdata; | |
167 | { | |
168 | daddr_t n_ffree, n_bfree; | |
169 | struct dups *dp; | |
170 | struct zlncnt *zlnp; | |
171 | ||
172 | if (preen && child) | |
173 | (void)signal(SIGQUIT, voidquit); | |
174 | devname = filesys; | |
175 | if (debug && preen) | |
176 | pwarn("starting\n"); | |
177 | if (setup(filesys) == 0) { | |
178 | if (preen) | |
179 | pfatal("CAN'T CHECK FILE SYSTEM."); | |
180 | return (0); | |
181 | } | |
182 | /* | |
183 | * 1: scan inodes tallying blocks used | |
184 | */ | |
185 | if (preen == 0) { | |
186 | printf("** Last Mounted on %s\n", sblock.fs_fsmnt); | |
187 | if (hotroot) | |
188 | printf("** Root file system\n"); | |
189 | printf("** Phase 1 - Check Blocks and Sizes\n"); | |
190 | } | |
191 | pass1(); | |
192 | ||
193 | /* | |
194 | * 1b: locate first references to duplicates, if any | |
195 | */ | |
196 | if (duplist) { | |
197 | if (preen) | |
198 | pfatal("INTERNAL ERROR: dups with -p"); | |
199 | printf("** Phase 1b - Rescan For More DUPS\n"); | |
200 | pass1b(); | |
201 | } | |
202 | ||
203 | /* | |
204 | * 2: traverse directories from root to mark all connected directories | |
205 | */ | |
206 | if (preen == 0) | |
207 | printf("** Phase 2 - Check Pathnames\n"); | |
208 | pass2(); | |
209 | ||
210 | /* | |
211 | * 3: scan inodes looking for disconnected directories | |
212 | */ | |
213 | if (preen == 0) | |
214 | printf("** Phase 3 - Check Connectivity\n"); | |
215 | pass3(); | |
216 | ||
217 | /* | |
218 | * 4: scan inodes looking for disconnected files; check reference counts | |
219 | */ | |
220 | if (preen == 0) | |
221 | printf("** Phase 4 - Check Reference Counts\n"); | |
222 | pass4(); | |
223 | ||
224 | /* | |
225 | * 5: check and repair resource counts in cylinder groups | |
226 | */ | |
227 | if (preen == 0) | |
228 | printf("** Phase 5 - Check Cyl groups\n"); | |
229 | pass5(); | |
230 | ||
231 | /* | |
232 | * print out summary statistics | |
233 | */ | |
234 | n_ffree = sblock.fs_cstotal.cs_nffree; | |
235 | n_bfree = sblock.fs_cstotal.cs_nbfree; | |
236 | pwarn("%ld files, %ld used, %ld free ", | |
237 | n_files, n_blks, n_ffree + sblock.fs_frag * n_bfree); | |
238 | printf("(%ld frags, %ld blocks, %.1f%% fragmentation)\n", | |
239 | n_ffree, n_bfree, (float)(n_ffree * 100) / sblock.fs_dsize); | |
240 | if (debug && | |
241 | (n_files -= maxino - ROOTINO - sblock.fs_cstotal.cs_nifree)) | |
242 | printf("%ld files missing\n", n_files); | |
243 | if (debug) { | |
244 | n_blks += sblock.fs_ncg * | |
245 | (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); | |
246 | n_blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); | |
247 | n_blks += howmany(sblock.fs_cssize, sblock.fs_fsize); | |
248 | if (n_blks -= maxfsblock - (n_ffree + sblock.fs_frag * n_bfree)) | |
249 | printf("%ld blocks missing\n", n_blks); | |
250 | if (duplist != NULL) { | |
251 | printf("The following duplicate blocks remain:"); | |
252 | for (dp = duplist; dp; dp = dp->next) | |
253 | printf(" %ld,", dp->dup); | |
254 | printf("\n"); | |
255 | } | |
256 | if (zlnhead != NULL) { | |
257 | printf("The following zero link count inodes remain:"); | |
258 | for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) | |
259 | printf(" %lu,", zlnp->zlncnt); | |
260 | printf("\n"); | |
261 | } | |
262 | } | |
263 | zlnhead = (struct zlncnt *)0; | |
264 | duplist = (struct dups *)0; | |
265 | inocleanup(); | |
266 | if (fsmodified) { | |
267 | (void)time(&sblock.fs_time); | |
268 | sbdirty(); | |
269 | } | |
270 | ckfini(); | |
271 | free(blockmap); | |
272 | free(statemap); | |
273 | free((char *)lncntp); | |
274 | if (!fsmodified) | |
275 | return (0); | |
276 | if (!preen) { | |
277 | printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); | |
278 | if (hotroot) | |
279 | printf("\n***** REBOOT UNIX *****\n"); | |
280 | } | |
281 | if (hotroot) { | |
282 | sync(); | |
283 | return (4); | |
284 | } | |
285 | return (0); | |
286 | } |