1 /* $OpenBSD: pass1b.c,v 1.7 2003/06/11 06:22:13 deraadt Exp $ */
2 /* $NetBSD: pass1b.c,v 1.2 1997/09/14 14:27:26 lukem Exp $ */
3
4 /*
5 * Copyright (c) 1997 Manuel Bouyer.
6 * Copyright (c) 1980, 1986, 1993
7 * The Regents of the University of California. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. 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 #include <sys/param.h>
35 #include <sys/time.h>
36 #include <ufs/ext2fs/ext2fs_dinode.h>
37 #include <ufs/ext2fs/ext2fs.h>
38
39 #include <string.h>
40 #include "fsck.h"
41 #include "extern.h"
42
43 static int pass1bcheck(struct inodesc *);
44 static struct dups *duphead;
45
46 void
pass1b(void)47 pass1b(void)
48 {
49 int c, i;
50 struct ext2fs_dinode *dp;
51 struct inodesc idesc;
52 ino_t inumber;
53
54 memset(&idesc, 0, sizeof(struct inodesc));
55 idesc.id_type = ADDR;
56 idesc.id_func = pass1bcheck;
57 duphead = duplist;
58 inumber = 0;
59 for (c = 0; c < sblock.e2fs_ncg; c++) {
60 for (i = 0; i < sblock.e2fs.e2fs_ipg; i++, inumber++) {
61 if ((inumber < EXT2_FIRSTINO) && (inumber != EXT2_ROOTINO))
62 continue;
63 dp = ginode(inumber);
64 if (dp == NULL)
65 continue;
66 idesc.id_number = inumber;
67 if (statemap[inumber] != USTATE &&
68 (ckinode(dp, &idesc) & STOP))
69 return;
70 }
71 }
72 }
73
74 static int
pass1bcheck(struct inodesc * idesc)75 pass1bcheck(struct inodesc *idesc)
76 {
77 struct dups *dlp;
78 int nfrags, res = KEEPON;
79 daddr_t blkno = idesc->id_blkno;
80
81 for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
82 if (chkrange(blkno, 1))
83 res = SKIP;
84 for (dlp = duphead; dlp; dlp = dlp->next) {
85 if (dlp->dup == blkno) {
86 blkerror(idesc->id_number, "DUP", blkno);
87 dlp->dup = duphead->dup;
88 duphead->dup = blkno;
89 duphead = duphead->next;
90 }
91 if (dlp == muldup)
92 break;
93 }
94 if (muldup == 0 || duphead == muldup->next)
95 return (STOP);
96 }
97 return (res);
98 }
99