sbin/fsck_ext2fs/pass3.c

   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
  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 }