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Replace <sys/param.h> with <limits.h> and other less dirty headers where
possible.  Annotate <sys/param.h> lines with their current reasons.  Switch
to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1, LOGIN_NAME_MAX, etc.  Change
MIN() and MAX() to local definitions of MINIMUM() and MAXIMUM() where
sensible to avoid pulling in the pollution.  These are the files confirmed
through binary verification.
ok guenther, millert, doug (helped with the verification protocol)

/*	$OpenBSD: pass5.c,v 1.18 2015/01/16 06:39:57 deraadt Exp $	*/
/*	$NetBSD: pass5.c,v 1.7 2000/01/28 16:01:46 bouyer 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>	/* setbit isset */
#include <sys/time.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ext2fs/ext2fs_dinode.h>
#include <ufs/ext2fs/ext2fs.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#include "fsutil.h"
#include "fsck.h"
#include "extern.h"


void print_bmap(u_char *,u_int32_t);

void
pass5(void)
{
	int c;
	struct m_ext2fs *fs = &sblock;
	daddr32_t dbase, dmax;
	daddr32_t d;
	long i, j;
	struct inodesc idesc[3];
	struct bufarea *ino_bitmap = NULL, *blk_bitmap = NULL;
	char *ibmap, *bbmap;
	u_int32_t cs_ndir, cs_nbfree, cs_nifree;
	char msg[255];

	cs_ndir = 0;
	cs_nbfree = 0;
	cs_nifree = 0;

	ibmap = malloc(fs->e2fs_bsize);
	bbmap = malloc(fs->e2fs_bsize);
	if (ibmap == NULL || bbmap == NULL) {
		errexit("out of memory\n");
	}

	for (c = 0; c < fs->e2fs_ncg; c++) {
		u_int32_t nbfree = 0;
		u_int32_t nifree = 0;
		u_int32_t ndirs = 0;

		nbfree = 0;
		nifree = fs->e2fs.e2fs_ipg;
		ndirs = 0;

		if (blk_bitmap == NULL) {
			blk_bitmap = getdatablk(letoh32(fs->e2fs_gd[c].ext2bgd_b_bitmap),
				fs->e2fs_bsize);
		} else {
			getblk(blk_bitmap, letoh32(fs->e2fs_gd[c].ext2bgd_b_bitmap),
				fs->e2fs_bsize);
		}
		if (ino_bitmap == NULL) {
			ino_bitmap = getdatablk(letoh32(fs->e2fs_gd[c].ext2bgd_i_bitmap),
				fs->e2fs_bsize);
		} else {
			getblk(ino_bitmap, letoh32(fs->e2fs_gd[c].ext2bgd_i_bitmap),
				fs->e2fs_bsize);
		}
		memset(bbmap, 0, fs->e2fs_bsize);
		memset(ibmap, 0, fs->e2fs_bsize);
		memset(&idesc[0], 0, sizeof idesc);
		for (i = 0; i < 3; i++) {
			idesc[i].id_type = ADDR;
		}

		j = fs->e2fs.e2fs_ipg * c + 1;

		for (i = 0; i < fs->e2fs.e2fs_ipg; j++, i++) {
			if ((j < EXT2_FIRSTINO) && (j != EXT2_ROOTINO)) {
				setbit(ibmap, i);
				nifree--;
				continue;
			}
			if (j > fs->e2fs.e2fs_icount) {
				setbit(ibmap, i);
				continue;
			}
			switch (statemap[j]) {

			case USTATE:
				break;

			case DSTATE:
			case DCLEAR:
			case DFOUND:
				ndirs++;
				/* fall through */

			case FSTATE:
			case FCLEAR:
				nifree--;
				setbit(ibmap, i);
				break;

			default:
				errexit("BAD STATE %d FOR INODE I=%llu\n",
				    statemap[j], (unsigned long long)j);
			}
		}

		/* fill in unused par of the inode map */
		for (i = fs->e2fs.e2fs_ipg / NBBY; i < fs->e2fs_bsize; i++)
			ibmap[i] = 0xff;

		dbase = c * sblock.e2fs.e2fs_bpg +
		    sblock.e2fs.e2fs_first_dblock;
		dmax = (c+1) * sblock.e2fs.e2fs_bpg +
		    sblock.e2fs.e2fs_first_dblock;

		for (i = 0, d = dbase;
		     d < dmax;
		     d ++, i ++) {
			if (testbmap(d) || d >= sblock.e2fs.e2fs_bcount) {
				setbit(bbmap, i);
				continue;
			} else {
				nbfree++;
			}

		}
		cs_nbfree += nbfree;
		cs_nifree += nifree;
		cs_ndir += ndirs;

		if (debug && (letoh16(fs->e2fs_gd[c].ext2bgd_nbfree) != nbfree ||
		    letoh16(fs->e2fs_gd[c].ext2bgd_nifree) != nifree ||
		    letoh16(fs->e2fs_gd[c].ext2bgd_ndirs) != ndirs)) {
			printf("summary info for cg %d is %d, %d, %d,"
					"should be %d, %d, %d\n", c,
					letoh16(fs->e2fs_gd[c].ext2bgd_nbfree),
					letoh16(fs->e2fs_gd[c].ext2bgd_nifree),
					letoh16(fs->e2fs_gd[c].ext2bgd_ndirs),
					nbfree,
					nifree,
					ndirs);
		}
		(void)snprintf(msg, sizeof(msg),
		    "SUMMARY INFORMATIONS WRONG FOR CG #%d", c);
		if ((letoh16(fs->e2fs_gd[c].ext2bgd_nbfree) != nbfree ||
			letoh16(fs->e2fs_gd[c].ext2bgd_nifree) != nifree ||
			letoh16(fs->e2fs_gd[c].ext2bgd_ndirs) != ndirs) &&
			dofix(&idesc[0], msg)) {
			fs->e2fs_gd[c].ext2bgd_nbfree = htole16(nbfree);
			fs->e2fs_gd[c].ext2bgd_nifree = htole16(nifree);
			fs->e2fs_gd[c].ext2bgd_ndirs = htole16(ndirs);
			sbdirty();
		}

		if (debug && memcmp(blk_bitmap->b_un.b_buf, bbmap, fs->e2fs_bsize)) {
			printf("blk_bitmap:\n");
			print_bmap(blk_bitmap->b_un.b_buf, fs->e2fs_bsize);
			printf("bbmap:\n");
			print_bmap(bbmap, fs->e2fs_bsize);
		}

		(void)snprintf(msg, sizeof(msg),
		    "BLK(S) MISSING IN BIT MAPS #%d", c);
		if (memcmp(blk_bitmap->b_un.b_buf, bbmap, fs->e2fs_bsize) &&
			dofix(&idesc[1], msg)) {
			memcpy(blk_bitmap->b_un.b_buf, bbmap, fs->e2fs_bsize);
			dirty(blk_bitmap);
		}
		if (debug && memcmp(ino_bitmap->b_un.b_buf, ibmap, fs->e2fs_bsize)) {
			printf("ino_bitmap:\n");
			print_bmap(ino_bitmap->b_un.b_buf, fs->e2fs_bsize);
			printf("ibmap:\n");
			print_bmap(ibmap, fs->e2fs_bsize);
		}
		(void)snprintf(msg, sizeof(msg),
		    "INODE(S) MISSING IN BIT MAPS #%d", c);
		if (memcmp(ino_bitmap->b_un.b_buf, ibmap, fs->e2fs_bsize) &&
			dofix(&idesc[1], msg)) {
			memcpy(ino_bitmap->b_un.b_buf, ibmap, fs->e2fs_bsize);
			dirty(ino_bitmap);
		}

	}
	if (debug && (fs->e2fs.e2fs_fbcount != cs_nbfree ||
		fs->e2fs.e2fs_ficount != cs_nifree)) {
		printf("summary info bad in superblock: %d, %d should be %d, %d\n",
		fs->e2fs.e2fs_fbcount, fs->e2fs.e2fs_ficount,
		cs_nbfree, cs_nifree);
	}
	if ((fs->e2fs.e2fs_fbcount != cs_nbfree ||
		fs->e2fs.e2fs_ficount != cs_nifree)
	    && dofix(&idesc[0], "SUPERBLK SUMMARY INFORMATION BAD")) {
		fs->e2fs.e2fs_fbcount = cs_nbfree;
		fs->e2fs.e2fs_ficount = cs_nifree;
		sbdirty();
	}
	free(ibmap);
	free(bbmap);
}

void
print_bmap(u_char *map, u_int32_t size)
{
	int i, j;

	i = 0;
	while (i < size) {
		printf("%u: ",i);
		for (j = 0; j < 16; j++, i++)
			printf("%2x ", (u_int)map[i] & 0xff);
		printf("\n");
	}
}