xref: /openbsd-src/sbin/fsck_ext2fs/pass3.c (revision b9fc9a728fce9c4289b7e9a992665e28d5629a54)
1 /*	$OpenBSD: pass3.c,v 1.7 2015/01/16 06:39:57 deraadt Exp $	*/
2 /*	$NetBSD: pass3.c,v 1.2 1997/09/14 14:27:28 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 #include "fsck.h"
38 #include "extern.h"
39 
40 void
pass3(void)41 pass3(void)
42 {
43 	struct inoinfo **inpp, *inp;
44 	ino_t orphan;
45 	int loopcnt;
46 
47 	for (inpp = &inpsort[inplast - 1]; inpp >= inpsort; inpp--) {
48 		inp = *inpp;
49 		if (inp->i_number == EXT2_ROOTINO ||
50 		    !(inp->i_parent == 0 || statemap[inp->i_number] == DSTATE))
51 			continue;
52 		if (statemap[inp->i_number] == DCLEAR)
53 			continue;
54 		for (loopcnt = 0; ; loopcnt++) {
55 			orphan = inp->i_number;
56 			if (inp->i_parent == 0 ||
57 			    statemap[inp->i_parent] != DSTATE ||
58 			    loopcnt > numdirs)
59 				break;
60 			inp = getinoinfo(inp->i_parent);
61 		}
62 		(void)linkup(orphan, inp->i_dotdot);
63 		inp->i_parent = inp->i_dotdot = lfdir;
64 		lncntp[lfdir]--;
65 		statemap[orphan] = DFOUND;
66 		propagate();
67 	}
68 }
69