xref: /minix3/sbin/fsck_ext2fs/pass3.c (revision 94715d8e544a29153969034072cc27e737b55671)
1 /*	$NetBSD: pass3.c,v 1.7 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[] = "@(#)pass3.c	8.1 (Berkeley) 6/5/93";
60 #else
61 __RCSID("$NetBSD: pass3.c,v 1.7 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 #include "fsck.h"
70 #include "extern.h"
71 
72 void
pass3(void)73 pass3(void)
74 {
75 	struct inoinfo **inpp, *inp;
76 	ino_t orphan;
77 	int loopcnt;
78 
79 	for (inpp = &inpsort[inplast - 1]; inpp >= inpsort; inpp--) {
80 		inp = *inpp;
81 		if (inp->i_number == EXT2_ROOTINO ||
82 		    !(inp->i_parent == 0 || statemap[inp->i_number] == DSTATE))
83 			continue;
84 		if (statemap[inp->i_number] == DCLEAR)
85 			continue;
86 		for (loopcnt = 0; ; loopcnt++) {
87 			orphan = inp->i_number;
88 			if (inp->i_parent == 0 ||
89 			    statemap[inp->i_parent] != DSTATE ||
90 			    loopcnt > numdirs)
91 				break;
92 			inp = getinoinfo(inp->i_parent);
93 		}
94 		(void)linkup(orphan, inp->i_dotdot);
95 		inp->i_parent = inp->i_dotdot = lfdir;
96 		lncntp[lfdir]--;
97 		statemap[orphan] = DFOUND;
98 		propagate();
99 	}
100 }
101