![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to main.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSDReno / sbin / fsck|
Return to main.c CVS log | Up to [CSRG BSD Unix] / 43BSDReno / sbin / fsck |
1.1 root 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 are permitted provided
6: * that: (1) source distributions retain this entire copyright notice and
7: * comment, and (2) distributions including binaries display the following
8: * acknowledgement: ``This product includes software developed by the
9: * University of California, Berkeley and its contributors'' in the
10: * documentation or other materials provided with the distribution and in
11: * all advertising materials mentioning features or use of this software.
12: * Neither the name of the University nor the names of its contributors may
13: * be used to endorse or promote products derived from this software without
14: * specific prior written permission.
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
16: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
17: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18: */
19:
20: #ifndef lint
21: char copyright[] =
22: "@(#) Copyright (c) 1980, 1986 The Regents of the University of California.\n\
23: All rights reserved.\n";
24: #endif /* not lint */
25:
26: #ifndef lint
27: static char sccsid[] = "@(#)main.c 5.26 (Berkeley) 7/20/90";
28: #endif /* not lint */
29:
30: #include <sys/param.h>
31: #include <ufs/dinode.h>
32: #include <ufs/fs.h>
33: #include <fstab.h>
34: #include <stdlib.h>
35: #include <string.h>
36: #include <ctype.h>
37: #include <stdio.h>
38: #include "fsck.h"
39:
40: void catch(), catchquit(), voidquit();
41: int returntosingle;
42:
43: main(argc, argv)
44: int argc;
45: char *argv[];
46: {
47: int ch;
48: int ret, maxrun = 0;
49: extern int docheck(), checkfilesys();
50: extern char *optarg;
51: extern int optind;
52:
53: sync();
54: while ((ch = getopt(argc, argv, "cdpnNyYb:l:m:")) != EOF) {
55: switch (ch) {
56: case 'p':
57: preen++;
58: break;
59:
60: case 'b':
61: bflag = argtoi('b', "number", optarg, 10);
62: printf("Alternate super block location: %d\n", bflag);
63: break;
64:
65: case 'c':
66: cvtflag++;
67: break;
68:
69: case 'd':
70: debug++;
71: break;
72:
73: case 'l':
74: maxrun = argtoi('l', "number", optarg, 10);
75: break;
76:
77: case 'm':
78: lfmode = argtoi('m', "mode", optarg, 8);
79: if (lfmode &~ 07777)
80: errexit("bad mode to -m: %o\n", lfmode);
81: printf("** lost+found creation mode %o\n", lfmode);
82: break;
83:
84: case 'n':
85: case 'N':
86: nflag++;
87: yflag = 0;
88: break;
89:
90: case 'y':
91: case 'Y':
92: yflag++;
93: nflag = 0;
94: break;
95:
96: default:
97: errexit("%c option?\n", ch);
98: }
99: }
100: argc -= optind;
101: argv += optind;
102: if (signal(SIGINT, SIG_IGN) != SIG_IGN)
103: (void)signal(SIGINT, catch);
104: if (preen)
105: (void)signal(SIGQUIT, catchquit);
106: if (argc) {
107: while (argc-- > 0)
108: (void)checkfilesys(*argv++, (char *)0, 0L);
109: exit(0);
110: }
111: ret = checkfstab(preen, maxrun, docheck, checkfilesys);
112: if (returntosingle)
113: exit(2);
114: exit(ret);
115: }
116:
117: argtoi(flag, req, str, base)
118: int flag;
119: char *req, *str;
120: int base;
121: {
122: char *cp;
123: int ret;
124:
125: ret = (int)strtol(str, &cp, base);
126: if (cp == str || *cp)
127: errexit("-%c flag requires a %s\n", flag, req);
128: return (ret);
129: }
130:
131: /*
132: * Determine whether a filesystem should be checked.
133: */
134: docheck(fsp)
135: register struct fstab *fsp;
136: {
137:
138: if (strcmp(fsp->fs_vfstype, "ufs") ||
139: (strcmp(fsp->fs_type, FSTAB_RW) &&
140: strcmp(fsp->fs_type, FSTAB_RO)) ||
141: fsp->fs_passno == 0)
142: return (0);
143: return (1);
144: }
145:
146: /*
147: * Check the specified filesystem.
148: */
149: /* ARGSUSED */
150: checkfilesys(filesys, mntpt, auxdata)
151: char *filesys, *mntpt;
152: long auxdata;
153: {
154: daddr_t n_ffree, n_bfree;
155: struct dups *dp;
156: struct zlncnt *zlnp;
157:
158: (void)signal(SIGQUIT, voidquit);
159: devname = filesys;
160: if (debug && preen)
161: pwarn("starting\n");
162: if (setup(filesys) == 0) {
163: if (preen)
164: pfatal("CAN'T CHECK FILE SYSTEM.");
165: return (0);
166: }
167: /*
168: * 1: scan inodes tallying blocks used
169: */
170: if (preen == 0) {
171: printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
172: if (hotroot)
173: printf("** Root file system\n");
174: printf("** Phase 1 - Check Blocks and Sizes\n");
175: }
176: pass1();
177:
178: /*
179: * 1b: locate first references to duplicates, if any
180: */
181: if (duplist) {
182: if (preen)
183: pfatal("INTERNAL ERROR: dups with -p");
184: printf("** Phase 1b - Rescan For More DUPS\n");
185: pass1b();
186: }
187:
188: /*
189: * 2: traverse directories from root to mark all connected directories
190: */
191: if (preen == 0)
192: printf("** Phase 2 - Check Pathnames\n");
193: pass2();
194:
195: /*
196: * 3: scan inodes looking for disconnected directories
197: */
198: if (preen == 0)
199: printf("** Phase 3 - Check Connectivity\n");
200: pass3();
201:
202: /*
203: * 4: scan inodes looking for disconnected files; check reference counts
204: */
205: if (preen == 0)
206: printf("** Phase 4 - Check Reference Counts\n");
207: pass4();
208:
209: /*
210: * 5: check and repair resource counts in cylinder groups
211: */
212: if (preen == 0)
213: printf("** Phase 5 - Check Cyl groups\n");
214: pass5();
215:
216: /*
217: * print out summary statistics
218: */
219: n_ffree = sblock.fs_cstotal.cs_nffree;
220: n_bfree = sblock.fs_cstotal.cs_nbfree;
221: pwarn("%ld files, %ld used, %ld free ",
222: n_files, n_blks, n_ffree + sblock.fs_frag * n_bfree);
223: printf("(%ld frags, %ld blocks, %.1f%% fragmentation)\n",
224: n_ffree, n_bfree, (float)(n_ffree * 100) / sblock.fs_dsize);
225: if (debug &&
226: (n_files -= maxino - ROOTINO - sblock.fs_cstotal.cs_nifree))
227: printf("%ld files missing\n", n_files);
228: if (debug) {
229: n_blks += sblock.fs_ncg *
230: (cgdmin(&sblock, 0) - cgsblock(&sblock, 0));
231: n_blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);
232: n_blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
233: if (n_blks -= maxfsblock - (n_ffree + sblock.fs_frag * n_bfree))
234: printf("%ld blocks missing\n", n_blks);
235: if (duplist != NULL) {
236: printf("The following duplicate blocks remain:");
237: for (dp = duplist; dp; dp = dp->next)
238: printf(" %ld,", dp->dup);
239: printf("\n");
240: }
241: if (zlnhead != NULL) {
242: printf("The following zero link count inodes remain:");
243: for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
244: printf(" %lu,", zlnp->zlncnt);
245: printf("\n");
246: }
247: }
248: zlnhead = (struct zlncnt *)0;
249: duplist = (struct dups *)0;
250: inocleanup();
251: if (fsmodified) {
252: (void)time(&sblock.fs_time);
253: sbdirty();
254: }
255: ckfini();
256: free(blockmap);
257: free(statemap);
258: free((char *)lncntp);
259: if (!fsmodified)
260: return (0);
261: if (!preen) {
262: printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
263: if (hotroot)
264: printf("\n***** REBOOT UNIX *****\n");
265: }
266: if (hotroot) {
267: sync();
268: return (4);
269: }
270: return (0);
271: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.