1 /* $NetBSD: pass1b.c,v 1.8 2009/10/19 18:41:08 bouyer Exp $ */
2
3 /*
4 * Copyright (c) 1980, 1986, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 /*
33 * Copyright (c) 1997 Manuel Bouyer.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
45 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
46 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
47 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
48 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
49 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
53 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 */
55
56 #include <sys/cdefs.h>
57 #ifndef lint
58 #if 0
59 static char sccsid[] = "@(#)pass1b.c 8.1 (Berkeley) 6/5/93";
60 #else
61 __RCSID("$NetBSD: pass1b.c,v 1.8 2009/10/19 18:41:08 bouyer Exp $");
62 #endif
63 #endif /* not lint */
64
65 #include <sys/param.h>
66 #include <sys/time.h>
67 #include <ufs/ext2fs/ext2fs_dinode.h>
68 #include <ufs/ext2fs/ext2fs.h>
69
70 #include <string.h>
71 #include "fsck.h"
72 #include "extern.h"
73
74 static int pass1bcheck(struct inodesc *);
75 static struct dups *duphead;
76
77 void
pass1b(void)78 pass1b(void)
79 {
80 int c;
81 uint32_t i;
82 struct ext2fs_dinode *dp;
83 struct inodesc idesc;
84 ino_t inumber;
85
86 memset(&idesc, 0, sizeof(struct inodesc));
87 idesc.id_type = ADDR;
88 idesc.id_func = pass1bcheck;
89 duphead = duplist;
90 inumber = 0;
91 for (c = 0; c < sblock.e2fs_ncg; c++) {
92 for (i = 0; i < sblock.e2fs.e2fs_ipg; i++, inumber++) {
93 if ((inumber < EXT2_FIRSTINO) && (inumber != EXT2_ROOTINO))
94 continue;
95 dp = ginode(inumber);
96 if (dp == NULL)
97 continue;
98 idesc.id_number = inumber;
99 if (statemap[inumber] != USTATE &&
100 (ckinode(dp, &idesc) & STOP))
101 return;
102 }
103 }
104 }
105
106 static int
pass1bcheck(struct inodesc * idesc)107 pass1bcheck(struct inodesc *idesc)
108 {
109 struct dups *dlp;
110 int nfrags, res = KEEPON;
111 daddr_t blkno = idesc->id_blkno;
112
113 for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
114 if (chkrange(blkno, 1))
115 res = SKIP;
116 for (dlp = duphead; dlp; dlp = dlp->next) {
117 if (dlp->dup == blkno) {
118 blkerror(idesc->id_number, "DUP", blkno);
119 dlp->dup = duphead->dup;
120 duphead->dup = blkno;
121 duphead = duphead->next;
122 }
123 if (dlp == muldup)
124 break;
125 }
126 if (muldup == 0 || duphead == muldup->next)
127 return (STOP);
128 }
129 return (res);
130 }
131