165 lines
5 KiB
C
165 lines
5 KiB
C
/* $NetBSD: pass4.c,v 1.10 2009/10/19 18:41:08 bouyer Exp $ */
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/*
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* Copyright (c) 1980, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1997 Manuel Bouyer.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)pass4.c 8.1 (Berkeley) 6/5/93";
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#else
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__RCSID("$NetBSD: pass4.c,v 1.10 2009/10/19 18:41:08 bouyer Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/time.h>
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#include <ufs/ext2fs/ext2fs_dinode.h>
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#include <ufs/ext2fs/ext2fs.h>
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#include <stdlib.h>
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#include <string.h>
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#include "fsutil.h"
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#include "fsck.h"
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#include "extern.h"
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void
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pass4(void)
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{
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ino_t inumber;
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struct zlncnt *zlnp;
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struct ext2fs_dinode *dp;
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struct inodesc idesc;
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int n;
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memset(&idesc, 0, sizeof(struct inodesc));
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idesc.id_type = ADDR;
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idesc.id_func = pass4check;
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for (inumber = EXT2_ROOTINO; inumber <= lastino; inumber++) {
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if (inumber < EXT2_FIRSTINO && inumber > EXT2_ROOTINO)
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continue;
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idesc.id_number = inumber;
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switch (statemap[inumber]) {
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case FSTATE:
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case DFOUND:
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n = lncntp[inumber];
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if (n)
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adjust(&idesc, (short)n);
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else {
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for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
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if (zlnp->zlncnt == inumber) {
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zlnp->zlncnt = zlnhead->zlncnt;
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zlnp = zlnhead;
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zlnhead = zlnhead->next;
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free((char *)zlnp);
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clri(&idesc, "UNREF", 1);
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break;
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}
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}
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break;
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case DSTATE:
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clri(&idesc, "UNREF", 1);
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break;
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case DCLEAR:
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dp = ginode(inumber);
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if (inosize(dp) == 0) {
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clri(&idesc, "ZERO LENGTH", 1);
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break;
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}
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/* fall through */
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case FCLEAR:
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clri(&idesc, "BAD/DUP", 1);
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break;
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case USTATE:
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break;
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default:
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errexit("BAD STATE %d FOR INODE I=%llu",
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statemap[inumber], (unsigned long long)inumber);
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}
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}
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}
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int
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pass4check(struct inodesc *idesc)
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{
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struct dups *dlp;
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int nfrags, res = KEEPON;
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daddr_t blkno = idesc->id_blkno;
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for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
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if (chkrange(blkno, 1)) {
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res = SKIP;
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} else if (testbmap(blkno)) {
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for (dlp = duplist; dlp; dlp = dlp->next) {
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if (dlp->dup != blkno)
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continue;
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dlp->dup = duplist->dup;
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dlp = duplist;
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duplist = duplist->next;
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free((char *)dlp);
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break;
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}
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if (dlp == 0) {
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clrbmap(blkno);
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n_blks--;
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}
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}
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}
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return (res);
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}
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