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/* $OpenBSD: pass4.c,v 1.8 2011/03/12 17:50:47 deraadt Exp $ */
/* $NetBSD: pass4.c,v 1.2 1997/09/14 14:27:29 lukem Exp $ */
/*
* Copyright (c) 1997 Manuel Bouyer.
* Copyright (c) 1980, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/time.h>
#include <ufs/ext2fs/ext2fs_dinode.h>
#include <ufs/ext2fs/ext2fs.h>
#include <stdlib.h>
#include <string.h>
#include "fsutil.h"
#include "fsck.h"
#include "extern.h"
void
pass4(void)
{
ino_t inumber;
struct zlncnt *zlnp;
struct ext2fs_dinode *dp;
struct inodesc idesc;
int n;
memset(&idesc, 0, sizeof(struct inodesc));
idesc.id_type = ADDR;
idesc.id_func = pass4check;
for (inumber = EXT2_ROOTINO; inumber <= lastino; inumber++) {
if (inumber < EXT2_FIRSTINO && inumber > EXT2_ROOTINO)
continue;
idesc.id_number = inumber;
switch (statemap[inumber]) {
case FSTATE:
case DFOUND:
n = lncntp[inumber];
if (n)
adjust(&idesc, (short)n);
else {
for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
if (zlnp->zlncnt == inumber) {
zlnp->zlncnt = zlnhead->zlncnt;
zlnp = zlnhead;
zlnhead = zlnhead->next;
free((char *)zlnp);
clri(&idesc, "UNREF", 1);
break;
}
}
break;
case DSTATE:
clri(&idesc, "UNREF", 1);
break;
case DCLEAR:
dp = ginode(inumber);
if (inosize(dp) == 0) {
clri(&idesc, "ZERO LENGTH", 1);
break;
}
/* fall through */
case FCLEAR:
clri(&idesc, "BAD/DUP", 1);
break;
case USTATE:
break;
default:
errexit("BAD STATE %d FOR INODE I=%d\n",
statemap[inumber], inumber);
}
}
}
int
pass4check(struct inodesc *idesc)
{
struct dups *dlp;
int nfrags, res = KEEPON;
daddr32_t blkno = idesc->id_blkno;
for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
if (chkrange(blkno, 1)) {
res = SKIP;
} else if (testbmap(blkno)) {
for (dlp = duplist; dlp; dlp = dlp->next) {
if (dlp->dup != blkno)
continue;
dlp->dup = duplist->dup;
dlp = duplist;
duplist = duplist->next;
free((char *)dlp);
break;
}
if (dlp == 0) {
clrbmap(blkno);
n_blks--;
}
}
}
return (res);
}
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