pass1b.c revision 50476 
1/*
2 * Copyright (c) 1980, 1986, 1993
3 *	The Regents of the University of California.  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#if 0
36static const char sccsid[] = "@(#)pass1b.c	8.4 (Berkeley) 4/28/95";
37#endif
38static const char rcsid[] =
39  "$FreeBSD: head/sbin/fsck_ffs/pass1b.c 50476 1999-08-28 00:22:10Z peter $";
40#endif /* not lint */
41
42#include <sys/param.h>
43
44#include <ufs/ufs/dinode.h>
45#include <ufs/ffs/fs.h>
46
47#include <string.h>
48
49#include "fsck.h"
50
51static  struct dups *duphead;
52static int pass1bcheck __P((struct inodesc *));
53
54void
55pass1b()
56{
57	register int c, i;
58	register struct dinode *dp;
59	struct inodesc idesc;
60	ino_t inumber;
61
62	memset(&idesc, 0, sizeof(struct inodesc));
63	idesc.id_type = ADDR;
64	idesc.id_func = pass1bcheck;
65	duphead = duplist;
66	inumber = 0;
67	for (c = 0; c < sblock.fs_ncg; c++) {
68		for (i = 0; i < sblock.fs_ipg; i++, inumber++) {
69			if (inumber < ROOTINO)
70				continue;
71			dp = ginode(inumber);
72			if (dp == NULL)
73				continue;
74			idesc.id_number = inumber;
75			if (inoinfo(inumber)->ino_state != USTATE &&
76			    (ckinode(dp, &idesc) & STOP))
77				return;
78		}
79	}
80}
81
82static int
83pass1bcheck(idesc)
84	register struct inodesc *idesc;
85{
86	register struct dups *dlp;
87	int nfrags, res = KEEPON;
88	ufs_daddr_t blkno = idesc->id_blkno;
89
90	for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
91		if (chkrange(blkno, 1))
92			res = SKIP;
93		for (dlp = duphead; dlp; dlp = dlp->next) {
94			if (dlp->dup == blkno) {
95				blkerror(idesc->id_number, "DUP", blkno);
96				dlp->dup = duphead->dup;
97				duphead->dup = blkno;
98				duphead = duphead->next;
99			}
100			if (dlp == muldup)
101				break;
102		}
103		if (muldup == 0 || duphead == muldup->next)
104			return (STOP);
105	}
106	return (res);
107}
108