/*      $OpenBSD: pass3.c,v 1.18 2015/01/20 18:22:21 deraadt Exp $      */
/*      $NetBSD: pass3.c,v 1.8 1995/03/18 14:55:54 cgd Exp $    */

/*
 * 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/time.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#include <stdio.h>
#include "fsck.h"
#include "extern.h"

static int info_pos;

static int
pass3_info(char *buf, size_t buflen)
{
        return (snprintf(buf, buflen, "phase 3, directory %d/%ld",
            info_pos, inplast) > 0);
}

void
pass3(void)
{
        struct inoinfo **inpp, *inp, *pinp;
        ino_t orphan;
        int loopcnt;

        info_fn = pass3_info;
        for (inpp = &inpsort[inplast - 1]; inpp >= inpsort; inpp--) {
                info_pos++;
                inp = *inpp;
                if (inp->i_number == ROOTINO ||
                    (inp->i_parent != 0 && GET_ISTATE(inp->i_number) != DSTATE))
                        continue;
                if (GET_ISTATE(inp->i_number) == DCLEAR)
                        continue;
                for (loopcnt = 0; ; loopcnt++) {
                        orphan = inp->i_number;
                        if (inp->i_parent == 0 ||
                            GET_ISTATE(inp->i_parent) != DSTATE ||
                            loopcnt > numdirs)
                                break;
                        inp = getinoinfo(inp->i_parent);
                }
                if (linkup(orphan, inp->i_dotdot)) {
                        inp->i_parent = inp->i_dotdot = lfdir;
                        ILNCOUNT(lfdir)--;
                        pinp = getinoinfo(inp->i_parent);
                        inp->i_sibling = pinp->i_child;
                        pinp->i_child = inp;
                        SET_ISTATE(orphan, GET_ISTATE(inp->i_parent));
                }
                propagate(orphan);
        }
        info_fn = NULL;
}