1 /* $OpenBSD: pass1b.c,v 1.9 2015/01/16 06:39:57 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/time.h>
35 #include <ufs/ext2fs/ext2fs_dinode.h>
36 #include <ufs/ext2fs/ext2fs.h>
37
38 #include <string.h>
39 #include "fsck.h"
40 #include "extern.h"
41
42 static int pass1bcheck(struct inodesc *);
43 static struct dups *duphead;
44
45 void
pass1b(void)46 pass1b(void)
47 {
48 int c, i;
49 struct ext2fs_dinode *dp;
50 struct inodesc idesc;
51 ino_t inumber;
52
53 memset(&idesc, 0, sizeof(struct inodesc));
54 idesc.id_type = ADDR;
55 idesc.id_func = pass1bcheck;
56 duphead = duplist;
57 inumber = 0;
58 for (c = 0; c < sblock.e2fs_ncg; c++) {
59 for (i = 0; i < sblock.e2fs.e2fs_ipg; i++, inumber++) {
60 if ((inumber < EXT2_FIRSTINO) && (inumber != EXT2_ROOTINO))
61 continue;
62 dp = ginode(inumber);
63 if (dp == NULL)
64 continue;
65 idesc.id_number = inumber;
66 if (statemap[inumber] != USTATE &&
67 (ckinode(dp, &idesc) & STOP))
68 return;
69 }
70 }
71 }
72
73 static int
pass1bcheck(struct inodesc * idesc)74 pass1bcheck(struct inodesc *idesc)
75 {
76 struct dups *dlp;
77 int nfrags, res = KEEPON;
78 daddr32_t blkno = idesc->id_blkno;
79
80 for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
81 if (chkrange(blkno, 1))
82 res = SKIP;
83 for (dlp = duphead; dlp; dlp = dlp->next) {
84 if (dlp->dup == blkno) {
85 blkerror(idesc->id_number, "DUP", blkno);
86 dlp->dup = duphead->dup;
87 duphead->dup = blkno;
88 duphead = duphead->next;
89 }
90 if (dlp == muldup)
91 break;
92 }
93 if (muldup == 0 || duphead == muldup->next)
94 return (STOP);
95 }
96 return (res);
97 }
98