From 65348f21f42480920975088c4671426e8bd34550 Mon Sep 17 00:00:00 2001
From: jasoni <jasoni@openbsd.org>
Date: Wed, 26 Apr 2000 23:25:33 +0000
Subject: [PATCH] Support for ext2fs rev. 1

---
 bin/df/ext2fs_df.c           |   2 +-
 sbin/fsck_ext2fs/dir.c       | 153 +++++++++++++++++--------------
 sbin/fsck_ext2fs/fsck.h      |  15 +--
 sbin/fsck_ext2fs/inode.c     |  75 ++++++++-------
 sbin/fsck_ext2fs/main.c      |  37 +++-----
 sbin/fsck_ext2fs/pass1.c     | 154 ++++++++++++++++++-------------
 sbin/fsck_ext2fs/pass2.c     | 146 ++++++++++++++++++-----------
 sbin/fsck_ext2fs/pass5.c     |  60 ++++++------
 sbin/fsck_ext2fs/setup.c     | 173 ++++++++++++++++++++++++-----------
 sbin/fsck_ext2fs/utilities.c |  19 ++--
 10 files changed, 497 insertions(+), 337 deletions(-)

diff --git a/bin/df/ext2fs_df.c b/bin/df/ext2fs_df.c
index 48a30d41380..66314853ccd 100644
--- a/bin/df/ext2fs_df.c
+++ b/bin/df/ext2fs_df.c
@@ -75,7 +75,7 @@ e2fs_df(rfd, file, sfsp)
 		return (-1);
 	}
 	if ((sblock.e2fs_magic != E2FS_MAGIC) ||
-			(sblock.e2fs_rev != E2FS_REV)) {
+	    (sblock.e2fs_rev != E2FS_REV0 && sblock.e2fs_rev != E2FS_REV1)) {
 		return (-1);
 	}
 	sfsp->f_flags = 0;	/* The fs is not mapped, so no flags */
diff --git a/sbin/fsck_ext2fs/dir.c b/sbin/fsck_ext2fs/dir.c
index 1a146eb0700..934a004be5f 100644
--- a/sbin/fsck_ext2fs/dir.c
+++ b/sbin/fsck_ext2fs/dir.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: dir.c,v 1.3 1997/06/14 04:16:50 downsj Exp $	*/
+/*	$OpenBSD: dir.c,v 1.4 2000/04/26 23:26:05 jasoni Exp $	*/
 /*	$NetBSD: dir.c,v 1.1 1997/06/11 11:21:46 bouyer Exp $	*/
 
 /*
@@ -42,7 +42,7 @@ static char sccsid[] = "@(#)dir.c	8.5 (Berkeley) 12/8/94";
 #if 0
 static char rcsid[] = "$NetBSD: dir.c,v 1.1 1997/06/11 11:21:46 bouyer Exp $";
 #else
-static char rcsid[] = "$OpenBSD: dir.c,v 1.3 1997/06/14 04:16:50 downsj Exp $";
+static char rcsid[] = "$OpenBSD: dir.c,v 1.4 2000/04/26 23:26:05 jasoni Exp $";
 #endif
 #endif
 #endif /* not lint */
@@ -69,8 +69,8 @@ int	lfmode = 01777;
 #define DIRBLKSIZ 0 /* just for now */
 struct	ext2fs_dirtemplate emptydir = { 0, DIRBLKSIZ }; 
 struct	ext2fs_dirtemplate dirhead = {
-	0, 12, 1, ".",
-	0, DIRBLKSIZ - 12, 2, ".."
+	0, 12, 1, EXT2_FT_DIR, ".",
+	0, DIRBLKSIZ - 12, 2, EXT2_FT_DIR, ".."
 };
 #undef DIRBLKSIZ
 
@@ -148,7 +148,7 @@ dirscan(idesc)
 	}
 	idesc->id_loc = 0;
 	for (dp = fsck_readdir(idesc); dp != NULL; dp = fsck_readdir(idesc)) {
-		dsize = dp->e2d_reclen;
+		dsize = fs2h16(dp->e2d_reclen);
 		memcpy(dbuf, dp, (size_t)dsize);
 		idesc->id_dirp = (struct ext2fs_direct *)dbuf;
 		if ((n = (*idesc->id_func)(idesc)) & ALTERED) {
@@ -190,9 +190,10 @@ fsck_readdir(idesc)
 		fix = dofix(idesc, "DIRECTORY CORRUPTED");
 		bp = getdirblk(idesc->id_blkno, blksiz);
 		dp = (struct ext2fs_direct *)(bp->b_un.b_buf + idesc->id_loc);
-		dp->e2d_reclen = sblock.e2fs_bsize;
+		dp->e2d_reclen = h2fs16(sblock.e2fs_bsize);
 		dp->e2d_ino = 0;
 		dp->e2d_namlen = 0;
+		dp->e2d_type = 0;
 		dp->e2d_name[0] = '\0';
 		if (fix)
 			dirty(bp);
@@ -205,8 +206,8 @@ dpok:
 		return NULL;
 	dploc = idesc->id_loc;
 	dp = (struct ext2fs_direct *)(bp->b_un.b_buf + dploc);
-	idesc->id_loc += dp->e2d_reclen;
-	idesc->id_filesize -= dp->e2d_reclen;
+	idesc->id_loc += fs2h16(dp->e2d_reclen);
+	idesc->id_filesize -= fs2h16(dp->e2d_reclen);
 	if ((idesc->id_loc % sblock.e2fs_bsize) == 0)
 		return (dp);
 	ndp = (struct ext2fs_direct *)(bp->b_un.b_buf + idesc->id_loc);
@@ -220,7 +221,7 @@ dpok:
 		fix = dofix(idesc, "DIRECTORY CORRUPTED");
 		bp = getdirblk(idesc->id_blkno, blksiz);
 		dp = (struct ext2fs_direct *)(bp->b_un.b_buf + dploc);
-		dp->e2d_reclen += size;
+		dp->e2d_reclen = h2fs16(fs2h16(dp->e2d_reclen) + size);
 		if (fix)
 			dirty(bp);
 	}
@@ -238,24 +239,27 @@ dircheck(idesc, dp)
 {
 	int size;
 	char *cp;
-	u_char namlen;
 	int spaceleft;
+	u_int16_t reclen = fs2h16(dp->e2d_reclen);
 
 	spaceleft = sblock.e2fs_bsize - (idesc->id_loc % sblock.e2fs_bsize);
-	if (dp->e2d_ino > maxino ||
-	    dp->e2d_reclen == 0 ||
-	    dp->e2d_reclen > spaceleft ||
-	    (dp->e2d_reclen & 0x3) != 0)
+	if (fs2h32(dp->e2d_ino) > maxino ||
+	    reclen == 0 ||
+	    reclen > spaceleft ||
+	    (reclen & 0x3) != 0)
 		return (0);
 	if (dp->e2d_ino == 0)
 		return (1);
+	if (sblock.e2fs.e2fs_rev < E2FS_REV1 ||
+	    (sblock.e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE) == 0)
+		if (dp->e2d_type != 0)
+			return (1);
 	size = EXT2FS_DIRSIZ(dp->e2d_namlen);
-	namlen = dp->e2d_namlen;
-	if (dp->e2d_reclen < size ||
+	if (reclen < size ||
 	    idesc->id_filesize < size ||
-	    namlen > EXT2FS_MAXNAMLEN)
+	    dp->e2d_namlen > EXT2FS_MAXNAMLEN)
 		return (0);
-	for (cp = dp->e2d_name, size = 0; size < namlen; size++)
+	for (cp = dp->e2d_name, size = 0; size < dp->e2d_namlen; size++)
 		if (*cp == '\0' || (*cp++ == '/'))
 			return (0);
 	return (1);
@@ -289,7 +293,7 @@ fileerror(cwd, ino, errmesg)
 	dp = ginode(ino);
 	if (ftypeok(dp))
 		pfatal("%s=%s\n",
-		    (dp->e2di_mode & IFMT) == IFDIR ? "DIR" : "FILE", pathbuf);
+		    (fs2h16(dp->e2di_mode) & IFMT) == IFDIR ? "DIR" : "FILE", pathbuf);
 	else
 		pfatal("NAME=%s\n", pathbuf);
 }
@@ -302,15 +306,15 @@ adjust(idesc, lcnt)
 	register struct ext2fs_dinode *dp;
 
 	dp = ginode(idesc->id_number);
-	if (dp->e2di_nlink == lcnt) {
+	if (fs2h16(dp->e2di_nlink) == lcnt) {
 		if (linkup(idesc->id_number, (ino_t)0) == 0)
 			clri(idesc, "UNREF", 0);
 	} else {
 		pwarn("LINK COUNT %s", (lfdir == idesc->id_number) ? lfname :
-			((dp->e2di_mode & IFMT) == IFDIR ? "DIR" : "FILE"));
+			((fs2h16(dp->e2di_mode) & IFMT) == IFDIR ? "DIR" : "FILE"));
 		pinode(idesc->id_number);
 		printf(" COUNT %d SHOULD BE %d",
-			dp->e2di_nlink, dp->e2di_nlink - lcnt);
+			fs2h16(dp->e2di_nlink), fs2h16(dp->e2di_nlink) - lcnt);
 		if (preen) {
 			if (lcnt < 0) {
 				printf("\n");
@@ -319,7 +323,7 @@ adjust(idesc, lcnt)
 			printf(" (ADJUSTED)\n");
 		}
 		if (preen || reply("ADJUST") == 1) {
-			dp->e2di_nlink -= lcnt;
+			dp->e2di_nlink = h2fs16(fs2h16(dp->e2di_nlink) - lcnt);
 			inodirty();
 		}
 	}
@@ -334,20 +338,24 @@ mkentry(idesc)
 	int newlen, oldlen;
 
 	newent.e2d_namlen = strlen(idesc->id_name);
+	if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+	    (sblock.e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE))
+		newent.e2d_type = inot2ext2dt(typemap[idesc->id_parent]);
 	newlen = EXT2FS_DIRSIZ(newent.e2d_namlen);
 	if (dirp->e2d_ino != 0)
 		oldlen = EXT2FS_DIRSIZ(dirp->e2d_namlen);
 	else
 		oldlen = 0;
-	if (dirp->e2d_reclen - oldlen < newlen)
+	if (fs2h16(dirp->e2d_reclen) - oldlen < newlen)
 		return (KEEPON);
-	newent.e2d_reclen = dirp->e2d_reclen - oldlen;
-	dirp->e2d_reclen = oldlen;
+	newent.e2d_reclen = h2fs16(fs2h16(dirp->e2d_reclen) - oldlen);
+	dirp->e2d_reclen = h2fs16(oldlen);
 	dirp = (struct ext2fs_direct *)(((char *)dirp) + oldlen);
-	dirp->e2d_ino = idesc->id_parent;	/* ino to be entered is in id_parent */
+	dirp->e2d_ino = h2fs32(idesc->id_parent); /* ino to be entered is in id_parent */
 	dirp->e2d_reclen = newent.e2d_reclen;
 	dirp->e2d_namlen = newent.e2d_namlen;
-	memcpy(dirp->e2d_name, idesc->id_name, (size_t)dirp->e2d_namlen);
+	dirp->e2d_type = newent.e2d_type;
+	memcpy(dirp->e2d_name, idesc->id_name, (size_t)(dirp->e2d_namlen));
 	return (ALTERED|STOP);
 }
 
@@ -356,11 +364,17 @@ chgino(idesc)
 	struct inodesc *idesc;
 {
 	register struct ext2fs_direct *dirp = idesc->id_dirp;
+	u_int16_t namlen = dirp->e2d_namlen;
 
-	if (strlen(idesc->id_name) != dirp->e2d_namlen ||
-		strncmp(dirp->e2d_name, idesc->id_name, (int)dirp->e2d_namlen))
+	if (strlen(idesc->id_name) != namlen ||
+		strncmp(dirp->e2d_name, idesc->id_name, (int)namlen))
 		return (KEEPON);
-	dirp->e2d_ino = idesc->id_parent;
+	dirp->e2d_ino = h2fs32(idesc->id_parent);
+	if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+	    (sblock.e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE))
+		dirp->e2d_type = inot2ext2dt(typemap[idesc->id_parent]);
+	else
+		dirp->e2d_type = 0;
 	return (ALTERED|STOP);
 }
 
@@ -377,10 +391,10 @@ linkup(orphan, parentdir)
 
 	memset(&idesc, 0, sizeof(struct inodesc));
 	dp = ginode(orphan);
-	lostdir = (dp->e2di_mode & IFMT) == IFDIR;
+	lostdir = (fs2h16(dp->e2di_mode) & IFMT) == IFDIR;
 	pwarn("UNREF %s ", lostdir ? "DIR" : "FILE");
 	pinode(orphan);
-	if (preen && dp->e2di_size == 0)
+	if (preen && fs2h32(dp->e2di_size) == 0)
 		return (0);
 	if (preen)
 		printf(" (RECONNECTED)\n");
@@ -419,7 +433,7 @@ linkup(orphan, parentdir)
 		}
 	}
 	dp = ginode(lfdir);
-	if ((dp->e2di_mode & IFMT) != IFDIR) {
+	if ((fs2h16(dp->e2di_mode) & IFMT) != IFDIR) {
 		pfatal("lost+found IS NOT A DIRECTORY");
 		if (reply("REALLOCATE") == 0)
 			return (0);
@@ -456,7 +470,7 @@ linkup(orphan, parentdir)
 		    parentdir != (ino_t)-1)
 			(void)makeentry(orphan, lfdir, "..");
 		dp = ginode(lfdir);
-		dp->e2di_nlink++;
+		dp->e2di_nlink = h2fs16(fs2h16(dp->e2di_nlink) +1);
 		inodirty();
 		lncntp[lfdir]++;
 		pwarn("DIR I=%u CONNECTED. ", orphan);
@@ -513,8 +527,9 @@ makeentry(parent, ino, name)
 	idesc.id_fix = DONTKNOW;
 	idesc.id_name = name;
 	dp = ginode(parent);
-	if (dp->e2di_size % sblock.e2fs_bsize) {
-		dp->e2di_size = roundup(dp->e2di_size, sblock.e2fs_bsize);
+	if (fs2h32(dp->e2di_size) % sblock.e2fs_bsize) {
+		dp->e2di_size =
+			h2fs32(roundup(fs2h32(dp->e2di_size), sblock.e2fs_bsize));
 		inodirty();
 	}
 	if ((ckinode(dp, &idesc) & ALTERED) != 0)
@@ -543,17 +558,17 @@ expanddir(dp, name)
 		exit(8);
 	}
 
-	lastbn = lblkno(&sblock, dp->e2di_size);
-	if (lastbn >= NDADDR - 1 || dp->e2di_blocks[lastbn] == 0 ||
-		dp->e2di_size == 0)
+	lastbn = lblkno(&sblock, fs2h32(dp->e2di_size));
+	if (lastbn >= NDADDR - 1 || fs2h32(dp->e2di_blocks[lastbn]) == 0 ||
+		fs2h32(dp->e2di_size) == 0)
 		return (0);
 	if ((newblk = allocblk()) == 0)
 		return (0);
 	dp->e2di_blocks[lastbn + 1] = dp->e2di_blocks[lastbn];
-	dp->e2di_blocks[lastbn] = newblk;
-	dp->e2di_size += sblock.e2fs_bsize;
-	dp->e2di_nblock += 1;
-	bp = getdirblk(dp->e2di_blocks[lastbn + 1],
+	dp->e2di_blocks[lastbn] = h2fs32(newblk);
+	dp->e2di_size = h2fs32(fs2h32(dp->e2di_size) + sblock.e2fs_bsize);
+	dp->e2di_nblock = h2fs32(fs2h32(dp->e2di_nblock) + 1);
+	bp = getdirblk(fs2h32(dp->e2di_blocks[lastbn + 1]),
 		sblock.e2fs_bsize);
 	if (bp->b_errs)
 		goto bad;
@@ -562,16 +577,12 @@ expanddir(dp, name)
 	if (bp->b_errs)
 		goto bad;
 	memcpy(bp->b_un.b_buf, firstblk, sblock.e2fs_bsize);
-	emptydir.dot_reclen = sblock.e2fs_bsize;
-	for (cp = &bp->b_un.b_buf[sblock.e2fs_bsize];
-	     cp < &bp->b_un.b_buf[sblock.e2fs_bsize];
-	     cp += sblock.e2fs_bsize)
-		memcpy(cp, &emptydir, sizeof emptydir);
 	dirty(bp);
-	bp = getdirblk(dp->e2di_blocks[lastbn + 1],
+	bp = getdirblk(fs2h32(dp->e2di_blocks[lastbn + 1]),
 		sblock.e2fs_bsize);
 	if (bp->b_errs)
 		goto bad;
+	emptydir.dot_reclen = h2fs16(sblock.e2fs_bsize);
 	memcpy(bp->b_un.b_buf, &emptydir, sizeof emptydir);
 	pwarn("NO SPACE LEFT IN %s", name);
 	if (preen)
@@ -584,8 +595,8 @@ expanddir(dp, name)
 bad:
 	dp->e2di_blocks[lastbn] = dp->e2di_blocks[lastbn + 1];
 	dp->e2di_blocks[lastbn + 1] = 0;
-	dp->e2di_size -= sblock.e2fs_bsize;
-	dp->e2di_nblock -= sblock.e2fs_bsize;
+	dp->e2di_size = h2fs32(fs2h32(dp->e2di_size) - sblock.e2fs_bsize);
+	dp->e2di_nblock = h2fs32(fs2h32(dp->e2di_nblock) - 1);
 	freeblk(newblk);
 	return (0);
 }
@@ -599,34 +610,40 @@ allocdir(parent, request, mode)
 	int mode;
 {
 	ino_t ino;
-	char *cp;
 	struct ext2fs_dinode *dp;
 	register struct bufarea *bp;
 	struct ext2fs_dirtemplate *dirp;
 
 	ino = allocino(request, IFDIR|mode);
-	dirhead.dot_reclen = 12; /* XXX */
-	dirhead.dotdot_reclen = sblock.e2fs_bsize - 12; /* XXX */
+	dirhead.dot_reclen = h2fs16(12); /* XXX */
+	dirhead.dotdot_reclen = h2fs16(sblock.e2fs_bsize - 12); /* XXX */
+	dirhead.dot_namlen = 1;
+	if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+	    (sblock.e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE))
+		dirhead.dot_type = EXT2_FT_DIR;
+	else
+		dirhead.dot_type = 0;
+	dirhead.dotdot_namlen = 2;
+	if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+	    (sblock.e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE))
+		dirhead.dotdot_type = EXT2_FT_DIR;
+	else
+		dirhead.dotdot_type = 0;
 	dirp = &dirhead;
-	dirp->dot_ino = ino;
-	dirp->dotdot_ino = parent;
+	dirp->dot_ino = h2fs32(ino);
+	dirp->dotdot_ino = h2fs32(parent);
 	dp = ginode(ino);
-	bp = getdirblk(dp->e2di_blocks[0], sblock.e2fs_bsize);
+	bp = getdirblk(fs2h32(dp->e2di_blocks[0]), sblock.e2fs_bsize);
 	if (bp->b_errs) {
 		freeino(ino);
 		return (0);
 	}
-	emptydir.dot_reclen = sblock.e2fs_bsize;
 	memcpy(bp->b_un.b_buf, dirp, sizeof(struct ext2fs_dirtemplate));
-	for (cp = &bp->b_un.b_buf[sblock.e2fs_bsize];
-	     cp < &bp->b_un.b_buf[sblock.e2fs_bsize];
-	     cp += sblock.e2fs_bsize)
-		memcpy(cp, &emptydir, sizeof emptydir);
 	dirty(bp);
-	dp->e2di_nlink = 2;
+	dp->e2di_nlink = h2fs16(2);
 	inodirty();
 	if (ino == EXT2_ROOTINO) {
-		lncntp[ino] = dp->e2di_nlink;
+		lncntp[ino] = fs2h16(dp->e2di_nlink);
 		cacheino(dp, ino);
 		return(ino);
 	}
@@ -637,11 +654,11 @@ allocdir(parent, request, mode)
 	cacheino(dp, ino);
 	statemap[ino] = statemap[parent];
 	if (statemap[ino] == DSTATE) {
-		lncntp[ino] = dp->e2di_nlink;
+		lncntp[ino] = fs2h16(dp->e2di_nlink);
 		lncntp[parent]++;
 	}
 	dp = ginode(parent);
-	dp->e2di_nlink++;
+	dp->e2di_nlink = h2fs16(fs2h16(dp->e2di_nlink) + 1);
 	inodirty();
 	return (ino);
 }
@@ -657,7 +674,7 @@ freedir(ino, parent)
 
 	if (ino != parent) {
 		dp = ginode(parent);
-		dp->e2di_nlink--;
+		dp->e2di_nlink = h2fs16(fs2h16(dp->e2di_nlink) - 1);
 		inodirty();
 	}
 	freeino(ino);
diff --git a/sbin/fsck_ext2fs/fsck.h b/sbin/fsck_ext2fs/fsck.h
index fd8f5a784e4..63a3b45a683 100644
--- a/sbin/fsck_ext2fs/fsck.h
+++ b/sbin/fsck_ext2fs/fsck.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fsck.h,v 1.3 1997/06/14 04:16:51 downsj Exp $	*/
+/*	$OpenBSD: fsck.h,v 1.4 2000/04/26 23:26:05 jasoni Exp $	*/
 /*	$NetBSD: fsck.h,v 1.1 1997/06/11 11:21:47 bouyer Exp $	*/
 
 /*
@@ -66,7 +66,7 @@ struct bufarea {
 	union {
 		char	*b_buf;			/* buffer space */
 		daddr_t	*b_indir;		/* indirect block */
-		struct	m_ext2fs *b_fs;		/* super block */
+		struct	ext2fs *b_fs;		/* super block */
 		struct	ext2_gd *b_cgd;		/* cylinder group descriptor */
 		struct	ext2fs_dinode *b_dinode;	/* inode block */
 	} b_un;
@@ -78,9 +78,11 @@ struct bufarea {
 #define	MINBUFS		5	/* minimum number of buffers required */
 struct bufarea bufhead;		/* head of list of other blks in filesys */
 struct bufarea sblk;		/* file system superblock */
+struct bufarea asblk;		/* first alternate superblock */
 struct bufarea *pdirbp;		/* current directory contents */
 struct bufarea *pbp;		/* current inode block */
 struct bufarea *getdatablk __P((daddr_t, long));
+struct m_ext2fs sblock;
 
 #define	dirty(bp)	(bp)->b_dirty = 1
 #define	initbarea(bp) \
@@ -88,10 +90,7 @@ struct bufarea *getdatablk __P((daddr_t, long));
 	(bp)->b_bno = (daddr_t)-1; \
 	(bp)->b_flags = 0;
 
-#define	sbdirty()	sblk.b_dirty = 1
-#define	cgdirty()	cgblk.b_dirty = 1
-#define	sblock		(*sblk.b_un.b_fs)
-#define	cgrp		(*cgblk.b_un.b_cg)
+#define	sbdirty()	copyback_sb(&sblk); sblk.b_dirty = 1
 
 enum fixstate {DONTKNOW, NOFIX, FIX, IGNORE};
 
@@ -181,11 +180,11 @@ int	fswritefd;		/* file descriptor for writing file system */
 int	rerun;			/* rerun fsck.  Only used in non-preen mode */
 
 daddr_t	maxfsblock;		/* number of blocks in the file system */
-daddr_t cgoverhead;		/* overhead per cg */
 char	*blockmap;		/* ptr to primary blk allocation map */
 ino_t	maxino;			/* number of inodes in file system */
 ino_t	lastino;		/* last inode in use */
 char	*statemap;		/* ptr to inode state table */
+u_char	*typemap;		/* ptr to inode type table */
 int16_t	*lncntp;		/* ptr to link count table */
 
 ino_t	lfdir;			/* lost & found directory inode number */
@@ -212,3 +211,5 @@ struct ext2fs_dinode *ginode __P((ino_t));
 struct inoinfo *getinoinfo __P((ino_t));
 void getblk __P((struct bufarea *, daddr_t, long));
 ino_t allocino __P((ino_t, int));
+void copyback_sb __P((struct bufarea*));
+daddr_t cgoverhead __P((int));	/* overhead per cg */
diff --git a/sbin/fsck_ext2fs/inode.c b/sbin/fsck_ext2fs/inode.c
index 48c0c3fc803..2d50031ba6e 100644
--- a/sbin/fsck_ext2fs/inode.c
+++ b/sbin/fsck_ext2fs/inode.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: inode.c,v 1.5 1999/08/06 20:41:05 deraadt Exp $	*/
+/*	$OpenBSD: inode.c,v 1.6 2000/04/26 23:26:06 jasoni Exp $	*/
 /*	$NetBSD: inode.c,v 1.1 1997/06/11 11:21:49 bouyer Exp $	*/
 
 /*
@@ -42,7 +42,7 @@ static char sccsid[] = "@(#)inode.c	8.5 (Berkeley) 2/8/95";
 #if 0
 static char rcsid[] = "$NetBSD: inode.c,v 1.1 1997/06/11 11:21:49 bouyer Exp $";
 #else
-static char rcsid[] = "$OpenBSD: inode.c,v 1.5 1999/08/06 20:41:05 deraadt Exp $";
+static char rcsid[] = "$OpenBSD: inode.c,v 1.6 2000/04/26 23:26:06 jasoni Exp $";
 #endif
 #endif
 #endif /* not lint */
@@ -65,6 +65,15 @@ static char rcsid[] = "$OpenBSD: inode.c,v 1.5 1999/08/06 20:41:05 deraadt Exp $
 #include "fsutil.h"
 #include "extern.h"
 
+/*
+ * CG is stored in fs byte order in memory, so we can't use ino_to_fsba
+ * here.
+ */
+
+#define fsck_ino_to_fsba(fs, x)                      \
+	(fs2h32((fs)->e2fs_gd[ino_to_cg(fs, x)].ext2bgd_i_tables) + \
+	(((x)-1) % (fs)->e2fs.e2fs_ipg)/(fs)->e2fs_ipb)
+
 static ino_t startinum;
 
 static int iblock __P((struct inodesc *, long, u_int64_t));
@@ -75,7 +84,7 @@ ckinode(dp, idesc)
 	register struct inodesc *idesc;
 {
 	register u_int32_t *ap;
-	long ret, n, ndb, offset;
+	long ret, n, ndb;
 	struct ext2fs_dinode dino;
 	u_int64_t remsize, sizepb;
 	mode_t mode;
@@ -84,13 +93,13 @@ ckinode(dp, idesc)
 	if (idesc->id_fix != IGNORE)
 		idesc->id_fix = DONTKNOW;
 	idesc->id_entryno = 0;
-	idesc->id_filesize = dp->e2di_size;
-	mode = dp->e2di_mode & IFMT;
-	if (mode == IFBLK || mode == IFCHR || (mode == IFLNK &&
-	    (dp->e2di_size < EXT2_MAXSYMLINKLEN)))
+	idesc->id_filesize = fs2h32(dp->e2di_size);
+	mode = fs2h16(dp->e2di_mode) & IFMT;
+	if (mode == IFBLK || mode == IFCHR || mode == IFIFO ||
+	    (mode == IFLNK && (fs2h32(dp->e2di_size) < EXT2_MAXSYMLINKLEN)))
 		return (KEEPON);
 	dino = *dp;
-	ndb = howmany(dino.e2di_size, sblock.e2fs_bsize);
+	ndb = howmany(fs2h32(dino.e2di_size), sblock.e2fs_bsize);
 	for (ap = &dino.e2di_blocks[0]; ap < &dino.e2di_blocks[NDADDR];
 																ap++,ndb--) {
 		idesc->id_numfrags = 1;
@@ -103,8 +112,8 @@ ckinode(dp, idesc)
 				    pathbuf);
 				if (reply("ADJUST LENGTH") == 1) {
 					dp = ginode(idesc->id_number);
-					dp->e2di_size = (ap - &dino.e2di_blocks[0]) *
-					    sblock.e2fs_bsize;
+					dp->e2di_size = h2fs32((ap - &dino.e2di_blocks[0]) *
+					    sblock.e2fs_bsize);
 					printf(
 					    "YOU MUST RERUN FSCK AFTERWARDS\n");
 					rerun = 1;
@@ -113,7 +122,7 @@ ckinode(dp, idesc)
 			}
 			continue;
 		}
-		idesc->id_blkno = *ap;
+		idesc->id_blkno = fs2h32(*ap);
 		if (idesc->id_type == ADDR)
 			ret = (*idesc->id_func)(idesc);
 		else
@@ -122,11 +131,11 @@ ckinode(dp, idesc)
 			return (ret);
 	}
 	idesc->id_numfrags = 1;
-	remsize = dino.e2di_size - sblock.e2fs_bsize * NDADDR;
+	remsize = fs2h32(dino.e2di_size) - sblock.e2fs_bsize * NDADDR;
 	sizepb = sblock.e2fs_bsize;
 	for (ap = &dino.e2di_blocks[NDADDR], n = 1; n <= NIADDR; ap++, n++) {
 		if (*ap) {
-			idesc->id_blkno = *ap;
+			idesc->id_blkno = fs2h32(*ap);
 			ret = iblock(idesc, n, remsize);
 			if (ret & STOP)
 				return (ret);
@@ -139,7 +148,7 @@ ckinode(dp, idesc)
 				    pathbuf);
 				if (reply("ADJUST LENGTH") == 1) {
 					dp = ginode(idesc->id_number);
-					dp->e2di_size -= remsize;
+					dp->e2di_size = h2fs32(fs2h32(dp->e2di_size) - remsize);
 					remsize = 0;
 					printf(
 					    "YOU MUST RERUN FSCK AFTERWARDS\n");
@@ -192,8 +201,8 @@ iblock(idesc, ilevel, isize)
 		for (ap = &bp->b_un.b_indir[nif]; ap < aplim; ap++) {
 			if (*ap == 0)
 				continue;
-			(void)sprintf(buf, "PARTIALLY TRUNCATED INODE I=%u",
-				idesc->id_number);
+			(void)snprintf(buf, sizeof(buf),
+			    "PARTIALLY TRUNCATED INODE I=%u", idesc->id_number);
 			if (dofix(idesc, buf)) {
 				*ap = 0;
 				dirty(bp);
@@ -204,7 +213,7 @@ iblock(idesc, ilevel, isize)
 	aplim = &bp->b_un.b_indir[nif];
 	for (ap = bp->b_un.b_indir; ap < aplim; ap++) {
 		if (*ap) {
-			idesc->id_blkno = *ap;
+			idesc->id_blkno = fs2h32(*ap);
 			if (ilevel == 0)
 				n = (*func)(idesc);
 			else
@@ -222,7 +231,7 @@ iblock(idesc, ilevel, isize)
 				    pathbuf);
 				if (reply("ADJUST LENGTH") == 1) {
 					dp = ginode(idesc->id_number);
-					dp->e2di_size -= isize;
+					dp->e2di_size = h2fs32(fs2h32(dp->e2di_size) - isize);
 					isize = 0;
 					printf(
 					    "YOU MUST RERUN FSCK AFTERWARDS\n");
@@ -249,34 +258,36 @@ chkrange(blk, cnt)
 	int cnt;
 {
 	register int c;
+	int overh;
 
 	if ((unsigned)(blk + cnt) > maxfsblock)
 		return (1);
 	c = dtog(&sblock, blk);
-	if (blk < sblock.e2fs.e2fs_bpg * c + cgoverhead +
-											sblock.e2fs.e2fs_first_dblock) {
-		if ((blk + cnt) > sblock.e2fs.e2fs_bpg * c + cgoverhead +
-											sblock.e2fs.e2fs_first_dblock) {
+	overh = cgoverhead(c);
+	if (blk < sblock.e2fs.e2fs_bpg * c + overh +
+	    sblock.e2fs.e2fs_first_dblock) {
+		if ((blk + cnt) > sblock.e2fs.e2fs_bpg * c + overh +
+		    sblock.e2fs.e2fs_first_dblock) {
 			if (debug) {
 				printf("blk %d < cgdmin %d;",
-				    blk, sblock.e2fs.e2fs_bpg * c + cgoverhead +
-											sblock.e2fs.e2fs_first_dblock);
+				    blk, sblock.e2fs.e2fs_bpg * c + overh +
+				    sblock.e2fs.e2fs_first_dblock);
 				printf(" blk + cnt %d > cgsbase %d\n",
-				    blk + cnt, sblock.e2fs.e2fs_bpg * c + cgoverhead +
-											sblock.e2fs.e2fs_first_dblock);
+				    blk + cnt, sblock.e2fs.e2fs_bpg * c +
+				    overh + sblock.e2fs.e2fs_first_dblock);
 			}
 			return (1);
 		}
 	} else {
-		if ((blk + cnt) > sblock.e2fs.e2fs_bpg * (c + 1) + cgoverhead +
-											sblock.e2fs.e2fs_first_dblock) {
+		if ((blk + cnt) > sblock.e2fs.e2fs_bpg * (c + 1) + overh +
+		    sblock.e2fs.e2fs_first_dblock) {
 			if (debug)  {
 				printf("blk %d >= cgdmin %d;",
-				    blk, sblock.e2fs.e2fs_bpg * c + cgoverhead +
-											sblock.e2fs.e2fs_first_dblock);
+				    blk, sblock.e2fs.e2fs_bpg * c + overh +
+				    sblock.e2fs.e2fs_first_dblock);
 				printf(" blk + cnt %d > cgdmax %d\n",
-				    blk+cnt, sblock.e2fs.e2fs_bpg * (c + 1) + cgoverhead +
-											sblock.e2fs.e2fs_first_dblock);
+				    blk+cnt, sblock.e2fs.e2fs_bpg * (c + 1) +
+				    overh + sblock.e2fs.e2fs_first_dblock);
 			}
 			return (1);
 		}
diff --git a/sbin/fsck_ext2fs/main.c b/sbin/fsck_ext2fs/main.c
index 3ddd9b31a12..5806a97dd3d 100644
--- a/sbin/fsck_ext2fs/main.c
+++ b/sbin/fsck_ext2fs/main.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: main.c,v 1.6 2000/01/22 20:24:55 deraadt Exp $	*/
+/*	$OpenBSD: main.c,v 1.7 2000/04/26 23:26:06 jasoni Exp $	*/
 /*	$NetBSD: main.c,v 1.1 1997/06/11 11:21:50 bouyer Exp $	*/
 
 /*
@@ -48,7 +48,7 @@ static char sccsid[] = "@(#)main.c	8.2 (Berkeley) 1/23/94";
 #if 0
 static char rcsid[] = "$NetBSD: main.c,v 1.1 1997/06/11 11:21:50 bouyer Exp $";
 #else
-static char rcsid[] = "$OpenBSD: main.c,v 1.6 2000/01/22 20:24:55 deraadt Exp $";
+static char rcsid[] = "$OpenBSD: main.c,v 1.7 2000/04/26 23:26:06 jasoni Exp $";
 #endif
 #endif
 #endif /* not lint */
@@ -63,6 +63,7 @@ static char rcsid[] = "$OpenBSD: main.c,v 1.6 2000/01/22 20:24:55 deraadt Exp $"
 #include <string.h>
 #include <ctype.h>
 #include <stdio.h>
+#include <time.h>
 #include <unistd.h>
 
 #include "fsck.h"
@@ -75,7 +76,6 @@ int	main __P((int, char *[]));
 
 static int	argtoi __P((int, char *, char *, int));
 static int	checkfilesys __P((char *, char *, long, int));
-static int	docheck __P((struct fstab *));
 static  void usage __P((void));
 
 
@@ -166,22 +166,6 @@ argtoi(flag, req, str, base)
 	return (ret);
 }
 
-/*
- * Determine whether a filesystem should be checked.
- */
-static int
-docheck(fsp)
-	register struct fstab *fsp;
-{
-
-	if ( strcmp(fsp->fs_vfstype, "ext2fs") ||
-	    (strcmp(fsp->fs_type, FSTAB_RW) &&
-	     strcmp(fsp->fs_type, FSTAB_RO)) ||
-	    fsp->fs_passno == 0)
-		return (0);
-	return (1);
-}
-
 /*
  * Check the specified filesystem.
  */
@@ -195,7 +179,7 @@ checkfilesys(filesys, mntpt, auxdata, child)
 	daddr_t n_bfree;
 	struct dups *dp;
 	struct zlncnt *zlnp;
-	int cylno;
+	int i;
 
 	if (preen && child)
 		(void)signal(SIGQUIT, voidquit);
@@ -213,6 +197,10 @@ checkfilesys(filesys, mntpt, auxdata, child)
 	 * 1: scan inodes tallying blocks used
 	 */
 	if (preen == 0) {
+		if (sblock.e2fs.e2fs_rev > E2FS_REV0) {
+			printf("** Last Mounted on %s\n",
+			    sblock.e2fs.e2fs_fsmnt);
+		}
 		if (hotroot())
 			printf("** Root file system\n");
 		printf("** Phase 1 - Check Blocks and Sizes\n");
@@ -269,7 +257,8 @@ checkfilesys(filesys, mntpt, auxdata, child)
 	    (n_files -= maxino - 9 - sblock.e2fs.e2fs_ficount))
 		printf("%d files missing\n", n_files);
 	if (debug) {
-		n_blks += sblock.e2fs_ncg * cgoverhead;
+		for (i = 0; i < sblock.e2fs_ncg; i++)
+			n_blks +=  cgoverhead(i);
 		n_blks += sblock.e2fs.e2fs_first_dblock;
 		if (n_blks -= maxfsblock - n_bfree)
 			printf("%d blocks missing\n", n_blks);
@@ -286,9 +275,9 @@ checkfilesys(filesys, mntpt, auxdata, child)
 			printf("\n");
 		}
 	}
-	zlnhead = NULL;
-	duplist = NULL;
-	muldup = NULL;
+	zlnhead = (struct zlncnt *)0;
+	duplist = (struct dups *)0;
+	muldup = (struct dups *)0;
 	inocleanup();
 	if (fsmodified) {
 		time_t t;
diff --git a/sbin/fsck_ext2fs/pass1.c b/sbin/fsck_ext2fs/pass1.c
index e753290ab8d..b949d49f304 100644
--- a/sbin/fsck_ext2fs/pass1.c
+++ b/sbin/fsck_ext2fs/pass1.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pass1.c,v 1.4 1998/11/11 08:10:36 deraadt Exp $	*/
+/*	$OpenBSD: pass1.c,v 1.5 2000/04/26 23:26:06 jasoni Exp $	*/
 /*	$NetBSD: pass1.c,v 1.1 1997/06/11 11:21:51 bouyer Exp $	*/
 
 /*
@@ -42,7 +42,7 @@ static char sccsid[] = "@(#)pass1.c	8.1 (Berkeley) 6/5/93";
 #if 0
 static char rcsid[] = "$NetBSD: pass1.c,v 1.1 1997/06/11 11:21:51 bouyer Exp $";
 #else
-static char rcsid[] = "$OpenBSD: pass1.c,v 1.4 1998/11/11 08:10:36 deraadt Exp $";
+static char rcsid[] = "$OpenBSD: pass1.c,v 1.5 2000/04/26 23:26:06 jasoni Exp $";
 #endif
 #endif
 #endif /* not lint */
@@ -58,6 +58,7 @@ static char rcsid[] = "$OpenBSD: pass1.c,v 1.4 1998/11/11 08:10:36 deraadt Exp $
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 
 #include "fsck.h"
 #include "extern.h"
@@ -71,20 +72,45 @@ void
 pass1()
 {
 	ino_t inumber;
-	int c, i, cgd;
+	int c, i;
+	daddr_t dbase;
 	struct inodesc idesc;
 
 	/*
 	 * Set file system reserved blocks in used block map.
 	 */
 	for (c = 0; c < sblock.e2fs_ncg; c++) {
-		i = c * sblock.e2fs.e2fs_bpg + sblock.e2fs.e2fs_first_dblock;
-		cgd = i + cgoverhead;
+		dbase = c * sblock.e2fs.e2fs_bpg +
+		    sblock.e2fs.e2fs_first_dblock;
+		/* Mark the blocks used for the inode table */
+		if (fs2h32(sblock.e2fs_gd[c].ext2bgd_i_tables) >= dbase) {
+			for (i = 0; i < sblock.e2fs_itpg; i++)
+				setbmap(
+				    fs2h32(sblock.e2fs_gd[c].ext2bgd_i_tables)
+				    + i);
+		}
+		/* Mark the blocks used for the block bitmap */
+		if (fs2h32(sblock.e2fs_gd[c].ext2bgd_b_bitmap) >= dbase)
+			setbmap(fs2h32(sblock.e2fs_gd[c].ext2bgd_b_bitmap));
+		/* Mark the blocks used for the inode bitmap */
+		if (fs2h32(sblock.e2fs_gd[c].ext2bgd_i_bitmap) >= dbase)
+			setbmap(fs2h32(sblock.e2fs_gd[c].ext2bgd_i_bitmap));
+
+		if (sblock.e2fs.e2fs_rev == E2FS_REV0 ||
+		    (sblock.e2fs.e2fs_features_rocompat &
+			EXT2F_ROCOMPAT_SPARSESUPER) == 0 ||
+		    cg_has_sb(c)) {
+			/* Mark copuy of SB and descriptors */
+			setbmap(dbase);
+			for (i = 1; i <= sblock.e2fs_ngdb; i++)
+				setbmap(dbase+i);
+		}
 
-		if (c == 0)
-			i = 0;
-		for (; i < cgd; i++)
-			setbmap(i);
+
+		if (c == 0) {
+			for(i = 0; i < dbase; i++)
+				setbmap(i);
+		}
 	}
 
 	/*
@@ -108,8 +134,6 @@ pass1()
 	freeinodebuf();
 }
 
-#define MODE_USES_BLOCKS( mode ) (mode == IFREG || mode == IFDIR || mode == IFLNK)
-
 static void
 checkinode(inumber, idesc)
 	ino_t inumber;
@@ -119,13 +143,12 @@ checkinode(inumber, idesc)
 	struct zlncnt *zlnp;
 	int ndb, j;
 	mode_t mode;
-	char *symbuf;
 
 	dp = getnextinode(inumber);
 	if (inumber < EXT2_FIRSTINO && inumber != EXT2_ROOTINO) 
 		return;
 
-	mode = dp->e2di_mode & IFMT;
+	mode = fs2h16(dp->e2di_mode) & IFMT;
 	if (mode == 0 || (dp->e2di_dtime != 0 && dp->e2di_nlink == 0)) {
 		if (mode == 0 && (
 			memcmp(dp->e2di_blocks, zino.e2di_blocks,
@@ -147,7 +170,7 @@ checkinode(inumber, idesc)
 			if (preen || reply("CORRECT")) {
 				time_t t;
 				time(&t);
-				dp->e2di_dtime = t;
+				dp->e2di_dtime = h2fs32(t);
 				dp = ginode(inumber);
 				inodirty();
 			}
@@ -158,7 +181,7 @@ checkinode(inumber, idesc)
 	}
 	lastino = inumber;
 	if (dp->e2di_dtime != 0) {
-		time_t t = dp->e2di_dtime;
+		time_t t = fs2h32(dp->e2di_dtime);
 		char *p = ctime(&t);
 		pwarn("INODE I=%u HAS DTIME=%12.12s %4.4s", inumber, &p[4], &p[20]);
 		if (preen) {
@@ -171,64 +194,68 @@ checkinode(inumber, idesc)
 		}
 	}
 	if (/* dp->di_size < 0 || */
-	    dp->e2di_size + sblock.e2fs_bsize - 1 < dp->e2di_size) {
+	    fs2h32(dp->e2di_size) + sblock.e2fs_bsize - 1 <
+		fs2h32(dp->e2di_size)) {
 		if (debug)
-			printf("bad size %qu:", dp->e2di_size);
+			printf("bad size %lu:", (u_long)fs2h32(dp->e2di_size));
 		goto unknown;
 	}
 	if (!preen && mode == IFMT && reply("HOLD BAD BLOCK") == 1) {
 		dp = ginode(inumber);
-		dp->e2di_size = sblock.e2fs_bsize;
-		dp->e2di_mode = IFREG|0600;
+		dp->e2di_size = h2fs32(sblock.e2fs_bsize);
+		dp->e2di_mode = h2fs16(IFREG|0600);
 		inodirty();
 	}
-	if (MODE_USES_BLOCKS( mode )) {
-		ndb = howmany(dp->e2di_size, sblock.e2fs_bsize);
-		if (ndb < 0) {
-			if (debug)
-				printf("bad size %qu ndb %d:",
-					dp->e2di_size, ndb);
-			goto unknown;
-		}
-		if (mode == IFBLK || mode == IFCHR)
-			ndb++;
-		if (mode == IFLNK) {
-			/*
-		 	 * Fake ndb value so direct/indirect block checks below
-		 	 * will detect any garbage after symlink string.
-		 	 */
-			if (dp->e2di_size < EXT2_MAXSYMLINKLEN ||
-		    	(EXT2_MAXSYMLINKLEN == 0 && dp->e2di_blocks == 0)) {
-				ndb = howmany(dp->e2di_size, sizeof(u_int32_t));
-				if (ndb > NDADDR) {
-					j = ndb - NDADDR;
-					for (ndb = 1; j > 1; j--)
-						ndb *= NINDIR(&sblock);
-					ndb += NDADDR;
-				}
+	ndb = howmany(fs2h32(dp->e2di_size), sblock.e2fs_bsize);
+	if (ndb < 0) {
+		if (debug)
+			printf("bad size %lu ndb %d:",
+			    (u_long)fs2h32(dp->e2di_size), ndb);
+		goto unknown;
+	}
+	if (mode == IFBLK || mode == IFCHR)
+		ndb++;
+	if (mode == IFLNK) {
+		/*
+		 * Fake ndb value so direct/indirect block checks below
+		 * will detect any garbage after symlink string.
+		 */
+		if (fs2h32(dp->e2di_size) < EXT2_MAXSYMLINKLEN ||
+		    (EXT2_MAXSYMLINKLEN == 0 && dp->e2di_blocks == 0)) {
+			ndb = howmany(fs2h32(dp->e2di_size), sizeof(u_int32_t));
+			if (ndb > NDADDR) {
+				j = ndb - NDADDR;
+				for (ndb = 1; j > 1; j--)
+					ndb *= NINDIR(&sblock);
+				ndb += NDADDR;
 			}
 		}
+	}
+	/* Linux puts things in blocks for FIFO, so skip this check */
+	if (mode != IFIFO) {
 		for (j = ndb; j < NDADDR; j++)
 			if (dp->e2di_blocks[j] != 0) {
 				if (debug)
-					printf("bad direct addr: %d\n", dp->e2di_blocks[j]);
+					printf("bad direct addr: %d\n",
+					    fs2h32(dp->e2di_blocks[j]));
 				goto unknown;
 			}
 		for (j = 0, ndb -= NDADDR; ndb > 0; j++)
 			ndb /= NINDIR(&sblock);
-		for (; j < NIADDR; j++)
+		for (; j < NIADDR; j++) {
 			if (dp->e2di_blocks[j+NDADDR] != 0) {
 				if (debug)
 					printf("bad indirect addr: %d\n",
-						dp->e2di_blocks[j+NDADDR]);
+					    fs2h32(dp->e2di_blocks[j+NDADDR]));
 				goto unknown;
 			}
+		}
 	}
 	if (ftypeok(dp) == 0)
 		goto unknown;
 	n_files++;
-	lncntp[inumber] = dp->e2di_nlink;
-	if (dp->e2di_nlink <= 0) {
+	lncntp[inumber] = fs2h16(dp->e2di_nlink);
+	if (dp->e2di_nlink == 0) {
 		zlnp = (struct zlncnt *)malloc(sizeof *zlnp);
 		if (zlnp == NULL) {
 			pfatal("LINK COUNT TABLE OVERFLOW");
@@ -249,22 +276,21 @@ checkinode(inumber, idesc)
 	} else {
 		statemap[inumber] = FSTATE;
 	}
-	if (MODE_USES_BLOCKS( mode )) {	
-		badblk = dupblk = 0;
-		idesc->id_number = inumber;
-		(void)ckinode(dp, idesc);
-		idesc->id_entryno *= btodb(sblock.e2fs_bsize);
-		if (dp->e2di_nblock != idesc->id_entryno) {
-			pwarn("INCORRECT BLOCK COUNT I=%u (%d should be %d)",
-		    	inumber, dp->e2di_nblock, idesc->id_entryno);
-			if (preen)
-				printf(" (CORRECTED)\n");
-			else if (reply("CORRECT") == 0)
-				return;
-			dp = ginode(inumber);
-			dp->e2di_nblock = idesc->id_entryno;
-			inodirty();
-		}
+	typemap[inumber] = E2IFTODT(mode);
+	badblk = dupblk = 0;
+	idesc->id_number = inumber;
+	(void)ckinode(dp, idesc);
+	idesc->id_entryno *= btodb(sblock.e2fs_bsize);
+	if (fs2h32(dp->e2di_nblock) != idesc->id_entryno) {
+		pwarn("INCORRECT BLOCK COUNT I=%u (%d should be %d)",
+		    inumber, fs2h32(dp->e2di_nblock), idesc->id_entryno);
+		if (preen)
+			printf(" (CORRECTED)\n");
+		else if (reply("CORRECT") == 0)
+			return;
+		dp = ginode(inumber);
+		dp->e2di_nblock = h2fs32(idesc->id_entryno);
+		inodirty();
 	}
 	return;
 unknown:
diff --git a/sbin/fsck_ext2fs/pass2.c b/sbin/fsck_ext2fs/pass2.c
index 5a930f89afc..82adaef078e 100644
--- a/sbin/fsck_ext2fs/pass2.c
+++ b/sbin/fsck_ext2fs/pass2.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pass2.c,v 1.3 1997/06/14 04:16:56 downsj Exp $	*/
+/*	$OpenBSD: pass2.c,v 1.4 2000/04/26 23:26:06 jasoni Exp $	*/
 /*	$NetBSD: pass2.c,v 1.1 1997/06/11 11:21:53 bouyer Exp $	*/
 
 /*
@@ -42,7 +42,7 @@ static char sccsid[] = "@(#)pass2.c	8.6 (Berkeley) 10/27/94";
 #if 0
 static char rcsid[] = "$NetBSD: pass2.c,v 1.1 1997/06/11 11:21:53 bouyer Exp $";
 #else
-static char rcsid[] = "$OpenBSD: pass2.c,v 1.3 1997/06/14 04:16:56 downsj Exp $";
+static char rcsid[] = "$OpenBSD: pass2.c,v 1.4 2000/04/26 23:26:06 jasoni Exp $";
 #endif
 #endif
 #endif /* not lint */
@@ -112,8 +112,7 @@ pass2()
 		if (reply("FIX") == 0)
 			errexit("%s\n", "");
 		dp = ginode(EXT2_ROOTINO);
-		dp->e2di_mode &= ~IFMT;
-		dp->e2di_mode |= IFDIR;
+		dp->e2di_mode = h2fs16((fs2h16(dp->e2di_mode) & ~IFMT) | IFDIR);
 		inodirty();
 		break;
 
@@ -144,25 +143,25 @@ pass2()
 			inp->i_isize = roundup(MINDIRSIZE, sblock.e2fs_bsize);
 			if (reply("FIX") == 1) {
 				dp = ginode(inp->i_number);
-				dp->e2di_size = inp->i_isize;
+				dp->e2di_size = h2fs32(inp->i_isize);
 				inodirty();
 			}
 		} else if ((inp->i_isize & (sblock.e2fs_bsize - 1)) != 0) {
 			getpathname(pathbuf, inp->i_number, inp->i_number);
-			pwarn("DIRECTORY %s: LENGTH %d NOT MULTIPLE OF %d",
-				pathbuf, inp->i_isize, sblock.e2fs_bsize);
+			pwarn("DIRECTORY %s: LENGTH %lu NOT MULTIPLE OF %d",
+			    pathbuf, (u_long)inp->i_isize, sblock.e2fs_bsize);
 			if (preen)
 				printf(" (ADJUSTED)\n");
 			inp->i_isize = roundup(inp->i_isize, sblock.e2fs_bsize);
 			if (preen || reply("ADJUST") == 1) {
 				dp = ginode(inp->i_number);
-				dp->e2di_size = inp->i_isize;
+				dp->e2di_size = h2fs32(inp->i_isize);
 				inodirty();
 			}
 		}
 		memset(&dino, 0, sizeof(struct ext2fs_dinode));
-		dino.e2di_mode = IFDIR;
-		dino.e2di_size = inp->i_isize;
+		dino.e2di_mode = h2fs16(IFDIR);
+		dino.e2di_size = h2fs32(inp->i_isize);
 		memcpy(&dino.e2di_blocks[0], &inp->i_blks[0], (size_t)inp->i_numblks);
 		curino.id_number = inp->i_number;
 		curino.id_parent = inp->i_parent;
@@ -221,40 +220,53 @@ pass2check(idesc)
 	 */
 	if (idesc->id_entryno != 0)
 		goto chk1;
-	if (dirp->e2d_ino != 0 && dirp->e2d_namlen == 1 &&
+	if (fs2h32(dirp->e2d_ino) != 0 && dirp->e2d_namlen == 1 &&
 		dirp->e2d_name[0] == '.') {
-		if (dirp->e2d_ino != idesc->id_number) {
+		if (fs2h32(dirp->e2d_ino) != idesc->id_number) {
 			direrror(idesc->id_number, "BAD INODE NUMBER FOR '.'");
-			dirp->e2d_ino = idesc->id_number;
+			dirp->e2d_ino = h2fs32(idesc->id_number);
+			if (reply("FIX") == 1)
+				ret |= ALTERED;
+		}
+		if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+		    (sblock.e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)
+		    && (dirp->e2d_type != EXT2_FT_DIR)) {
+			direrror(idesc->id_number, "BAD TYPE VALUE FOR '.'");
+			dirp->e2d_type = EXT2_FT_DIR;
 			if (reply("FIX") == 1)
 				ret |= ALTERED;
 		}
 		goto chk1;
 	}
 	direrror(idesc->id_number, "MISSING '.'");
-	proto.e2d_ino = idesc->id_number;
+	proto.e2d_ino = h2fs32(idesc->id_number);
 	proto.e2d_namlen = 1;
+	if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+	    (sblock.e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE))
+		proto.e2d_type = EXT2_FT_DIR;
+	else
+		proto.e2d_type = 0;
 	(void)strcpy(proto.e2d_name, ".");
 	entrysize = EXT2FS_DIRSIZ(proto.e2d_namlen);
-	if (dirp->e2d_ino != 0 && strcmp(dirp->e2d_name, "..") != 0) {
+	if (fs2h32(dirp->e2d_ino) != 0 && strcmp(dirp->e2d_name, "..") != 0) {
 		pfatal("CANNOT FIX, FIRST ENTRY IN DIRECTORY CONTAINS %s\n",
 			dirp->e2d_name);
-	} else if (dirp->e2d_reclen < entrysize) {
+	} else if (fs2h16(dirp->e2d_reclen) < entrysize) {
 		pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '.'\n");
-	} else if (dirp->e2d_reclen < 2 * entrysize) {
+	} else if (fs2h16(dirp->e2d_reclen) < 2 * entrysize) {
 		proto.e2d_reclen = dirp->e2d_reclen;
 		memcpy(dirp, &proto, (size_t)entrysize);
 		if (reply("FIX") == 1)
 			ret |= ALTERED;
 	} else {
-		n = dirp->e2d_reclen - entrysize;
-		proto.e2d_reclen = entrysize;
+		n = fs2h16(dirp->e2d_reclen) - entrysize;
+		proto.e2d_reclen = h2fs16(entrysize);
 		memcpy(dirp, &proto, (size_t)entrysize);
 		idesc->id_entryno++;
-		lncntp[dirp->e2d_ino]--;
+		lncntp[fs2h32(dirp->e2d_ino)]--;
 		dirp = (struct ext2fs_direct *)((char *)(dirp) + entrysize);
 		memset(dirp, 0, (size_t)n);
-		dirp->e2d_reclen = n;
+		dirp->e2d_reclen = h2fs16(n);
 		if (reply("FIX") == 1)
 			ret |= ALTERED;
 	}
@@ -262,36 +274,49 @@ chk1:
 	if (idesc->id_entryno > 1)
 		goto chk2;
 	inp = getinoinfo(idesc->id_number);
-	proto.e2d_ino = inp->i_parent;
+	proto.e2d_ino = h2fs32(inp->i_parent);
 	proto.e2d_namlen = 2;
+	if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+	    (sblock.e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE))
+		proto.e2d_type = EXT2_FT_DIR;
+	else
+		proto.e2d_type = 0;
 	(void)strcpy(proto.e2d_name, "..");
-	entrysize = EXT2FS_DIRSIZ(proto.e2d_namlen);
+	entrysize = EXT2FS_DIRSIZ(2);
 	if (idesc->id_entryno == 0) {
 		n = EXT2FS_DIRSIZ(dirp->e2d_namlen);
-		if (dirp->e2d_reclen < n + entrysize)
+		if (fs2h16(dirp->e2d_reclen) < n + entrysize)
 			goto chk2;
-		proto.e2d_reclen = dirp->e2d_reclen - n;
-		dirp->e2d_reclen = n;
+		proto.e2d_reclen = h2fs16(fs2h16(dirp->e2d_reclen) - n);
+		dirp->e2d_reclen = h2fs16(n);
 		idesc->id_entryno++;
-		lncntp[dirp->e2d_ino]--;
+		lncntp[fs2h32(dirp->e2d_ino)]--;
 		dirp = (struct ext2fs_direct *)((char *)(dirp) + n);
-		memset(dirp, 0, (size_t)proto.e2d_reclen);
+		memset(dirp, 0, (size_t)fs2h16(proto.e2d_reclen));
 		dirp->e2d_reclen = proto.e2d_reclen;
 	}
-	if (dirp->e2d_ino != 0 &&
-		dirp->e2d_namlen == 2 && 
-		strncmp(dirp->e2d_name, "..", dirp->e2d_namlen) == 0) {
-		inp->i_dotdot = dirp->e2d_ino;
+	if (fs2h32(dirp->e2d_ino) != 0 &&
+	    dirp->e2d_namlen == 2 && 
+	    strncmp(dirp->e2d_name, "..", 2) == 0) {
+		inp->i_dotdot = fs2h32(dirp->e2d_ino);
+		if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+		    (sblock.e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)
+		    && dirp->e2d_type != EXT2_FT_DIR) {
+			direrror(idesc->id_number, "BAD TYPE VALUE FOR '..'");
+			dirp->e2d_type = EXT2_FT_DIR;
+			if (reply("FIX") == 1)
+				ret |= ALTERED;
+		}
 		goto chk2;
 	}
-	if (dirp->e2d_ino != 0 &&
+	if (fs2h32(dirp->e2d_ino) != 0 &&
 		dirp->e2d_namlen == 1 &&
-		strncmp(dirp->e2d_name, ".", dirp->e2d_namlen) != 0) {
+		strncmp(dirp->e2d_name, ".", 1) != 0) {
 		fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
 		pfatal("CANNOT FIX, SECOND ENTRY IN DIRECTORY CONTAINS %s\n",
 			dirp->e2d_name);
 		inp->i_dotdot = (ino_t)-1;
-	} else if (dirp->e2d_reclen < entrysize) {
+	} else if (fs2h16(dirp->e2d_reclen) < entrysize) {
 		fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
 		pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '..'\n");
 		inp->i_dotdot = (ino_t)-1;
@@ -307,11 +332,11 @@ chk1:
 			ret |= ALTERED;
 	}
 	idesc->id_entryno++;
-	if (dirp->e2d_ino != 0)
-		lncntp[dirp->e2d_ino]--;
+	if (fs2h32(dirp->e2d_ino) != 0)
+		lncntp[fs2h32(dirp->e2d_ino)]--;
 	return (ret|KEEPON);
 chk2:
-	if (dirp->e2d_ino == 0)
+	if (fs2h32(dirp->e2d_ino) == 0)
 		return (ret|KEEPON);
 	if (dirp->e2d_namlen <= 2 &&
 	    dirp->e2d_name[0] == '.' &&
@@ -333,17 +358,18 @@ chk2:
 	}
 	idesc->id_entryno++;
 	n = 0;
-	if (dirp->e2d_ino > maxino ||
-		(dirp->e2d_ino < EXT2_FIRSTINO && dirp->e2d_ino != EXT2_ROOTINO)) {
-		fileerror(idesc->id_number, dirp->e2d_ino, "I OUT OF RANGE");
+	if (fs2h32(dirp->e2d_ino) > maxino ||
+		(fs2h32(dirp->e2d_ino) < EXT2_FIRSTINO &&
+		 fs2h32(dirp->e2d_ino) != EXT2_ROOTINO)) {
+		fileerror(idesc->id_number, fs2h32(dirp->e2d_ino), "I OUT OF RANGE");
 		n = reply("REMOVE");
 	} else {
 again:
-		switch (statemap[dirp->e2d_ino]) {
+		switch (statemap[fs2h32(dirp->e2d_ino)]) {
 		case USTATE:
 			if (idesc->id_entryno <= 2)
 				break;
-			fileerror(idesc->id_number, dirp->e2d_ino, "UNALLOCATED");
+			fileerror(idesc->id_number, fs2h32(dirp->e2d_ino), "UNALLOCATED");
 			n = reply("REMOVE");
 			break;
 
@@ -351,7 +377,7 @@ again:
 		case FCLEAR:
 			if (idesc->id_entryno <= 2)
 				break;
-			if (statemap[dirp->e2d_ino] == FCLEAR)
+			if (statemap[fs2h32(dirp->e2d_ino)] == FCLEAR)
 				errmsg = "DUP/BAD";
 			else if (!preen)
 				errmsg = "ZERO LENGTH DIRECTORY";
@@ -359,22 +385,23 @@ again:
 				n = 1;
 				break;
 			}
-			fileerror(idesc->id_number, dirp->e2d_ino, errmsg);
+			fileerror(idesc->id_number, fs2h32(dirp->e2d_ino), errmsg);
 			if ((n = reply("REMOVE")) == 1)
 				break;
-			dp = ginode(dirp->e2d_ino);
-			statemap[dirp->e2d_ino] =
-			    (dp->e2di_mode & IFMT) == IFDIR ? DSTATE : FSTATE;
-			lncntp[dirp->e2d_ino] = dp->e2di_nlink;
+			dp = ginode(fs2h32(dirp->e2d_ino));
+			statemap[fs2h32(dirp->e2d_ino)] =
+			    (fs2h16(dp->e2di_mode) & IFMT) == IFDIR ? DSTATE : FSTATE;
+			lncntp[fs2h32(dirp->e2d_ino)] = fs2h16(dp->e2di_nlink);
 			goto again;
 
 		case DSTATE:
 		case DFOUND:
-			inp = getinoinfo(dirp->e2d_ino);
+			inp = getinoinfo(fs2h32(dirp->e2d_ino));
 			if (inp->i_parent != 0 && idesc->id_entryno > 2) {
 				getpathname(pathbuf, idesc->id_number,
 				    idesc->id_number);
-				getpathname(namebuf, dirp->e2d_ino, dirp->e2d_ino);
+				getpathname(namebuf, fs2h32(dirp->e2d_ino),
+					fs2h32(dirp->e2d_ino));
 				pwarn("%s %s %s\n", pathbuf,
 				    "IS AN EXTRANEOUS HARD LINK TO DIRECTORY",
 				    namebuf);
@@ -388,12 +415,25 @@ again:
 			/* fall through */
 
 		case FSTATE:
-			lncntp[dirp->e2d_ino]--;
+			if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+			    (sblock.e2fs.e2fs_features_incompat &
+				EXT2F_INCOMPAT_FTYPE) &&
+			    dirp->e2d_type !=
+				inot2ext2dt(typemap[fs2h32(dirp->e2d_ino)])) {
+				dirp->e2d_type =
+				    inot2ext2dt(typemap[fs2h32(dirp->e2d_ino)]);
+				fileerror(idesc->id_number,
+				    fs2h32(dirp->e2d_ino),
+				    "BAD TYPE VALUE");
+				if (reply("FIX") == 1)
+					ret |= ALTERED;
+			}
+			lncntp[fs2h32(dirp->e2d_ino)]--;
 			break;
 
 		default:
 			errexit("BAD STATE %d FOR INODE I=%d\n",
-			    statemap[dirp->e2d_ino], dirp->e2d_ino);
+			    statemap[fs2h32(dirp->e2d_ino)], fs2h32(dirp->e2d_ino));
 		}
 	}
 	if (n == 0)
diff --git a/sbin/fsck_ext2fs/pass5.c b/sbin/fsck_ext2fs/pass5.c
index 586c8c6d692..e6d2f0a0af4 100644
--- a/sbin/fsck_ext2fs/pass5.c
+++ b/sbin/fsck_ext2fs/pass5.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pass5.c,v 1.4 1997/06/14 05:04:12 downsj Exp $	*/
+/*	$OpenBSD: pass5.c,v 1.5 2000/04/26 23:26:06 jasoni Exp $	*/
 /*	$NetBSD: pass5.c,v 1.1 1997/06/11 11:21:58 bouyer Exp $	*/
 
 /*
@@ -42,7 +42,7 @@ static char sccsid[] = "@(#)pass5.c	8.6 (Berkeley) 11/30/94";
 #if 0
 static char rcsid[] = "$NetBSD: pass5.c,v 1.1 1997/06/11 11:21:58 bouyer Exp $";
 #else
-static char rcsid[] = "$OpenBSD: pass5.c,v 1.4 1997/06/14 05:04:12 downsj Exp $";
+static char rcsid[] = "$OpenBSD: pass5.c,v 1.5 2000/04/26 23:26:06 jasoni Exp $";
 #endif
 #endif
 #endif /* not lint */
@@ -66,7 +66,7 @@ void print_bmap __P((u_char *,u_int32_t));
 void
 pass5()
 {
-	int c, blk, frags, basesize, sumsize, mapsize, savednrpos;
+	int c;
 	register struct m_ext2fs *fs = &sblock;
 	daddr_t dbase, dmax;
 	register daddr_t d;
@@ -97,17 +97,17 @@ pass5()
 		ndirs = 0;
 
 		if (blk_bitmap == NULL) {
-			blk_bitmap = getdatablk(fs->e2fs_gd[c].ext2bgd_b_bitmap,
+			blk_bitmap = getdatablk(fs2h32(fs->e2fs_gd[c].ext2bgd_b_bitmap),
 				fs->e2fs_bsize);
 		} else {
-			getblk(blk_bitmap, fs->e2fs_gd[c].ext2bgd_b_bitmap,
+			getblk(blk_bitmap, fs2h32(fs->e2fs_gd[c].ext2bgd_b_bitmap),
 				fs->e2fs_bsize);
 		}
 		if (ino_bitmap == NULL) {
-			ino_bitmap = getdatablk(fs->e2fs_gd[c].ext2bgd_i_bitmap,
+			ino_bitmap = getdatablk(fs2h32(fs->e2fs_gd[c].ext2bgd_i_bitmap),
 				fs->e2fs_bsize);
 		} else {
-			getblk(ino_bitmap, fs->e2fs_gd[c].ext2bgd_i_bitmap,
+			getblk(ino_bitmap, fs2h32(fs->e2fs_gd[c].ext2bgd_i_bitmap),
 				fs->e2fs_bsize);
 		}
 		memset(bbmap, 0, fs->e2fs_bsize);
@@ -147,7 +147,7 @@ pass5()
 				break;
 
 			default:
-				errexit("BAD STATE %d FOR INODE I=%d\n",
+				errexit("BAD STATE %d FOR INODE I=%ld\n",
 				    statemap[j], j);
 			}
 		}
@@ -156,13 +156,12 @@ pass5()
 		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 +
-				cgoverhead;
-		dmax = (c+1) * sblock.e2fs.e2fs_bpg + sblock.e2fs.e2fs_first_dblock;
+		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; i < cgoverhead; i++)
-			setbit(bbmap, i); /* blks allocated to fs metadata */
-		for (i = cgoverhead, d = dbase;
+		for (i = 0, d = dbase;
 		     d < dmax;
 		     d ++, i ++) {
 			if (testbmap(d) || d >= sblock.e2fs.e2fs_bcount) {
@@ -177,26 +176,27 @@ pass5()
 		cs_nifree += nifree;
 		cs_ndir += ndirs;
 
-		if (debug && (fs->e2fs_gd[c].ext2bgd_nbfree != nbfree ||
-					  fs->e2fs_gd[c].ext2bgd_nifree != nifree ||
-					  fs->e2fs_gd[c].ext2bgd_ndirs != ndirs)) {
+		if (debug && (fs2h16(fs->e2fs_gd[c].ext2bgd_nbfree) != nbfree ||
+					  fs2h16(fs->e2fs_gd[c].ext2bgd_nifree) != nifree ||
+					  fs2h16(fs->e2fs_gd[c].ext2bgd_ndirs) != ndirs)) {
 			printf("summary info for cg %d is %d, %d, %d,"
 					"should be %d, %d, %d\n", c,
-					fs->e2fs_gd[c].ext2bgd_nbfree,
-					fs->e2fs_gd[c].ext2bgd_nifree,
-					fs->e2fs_gd[c].ext2bgd_ndirs,
+					fs2h16(fs->e2fs_gd[c].ext2bgd_nbfree),
+					fs2h16(fs->e2fs_gd[c].ext2bgd_nifree),
+					fs2h16(fs->e2fs_gd[c].ext2bgd_ndirs),
 					nbfree,
 					nifree,
 					ndirs);
 		}
-		snprintf(msg, 255, "SUMMARY INFORMATIONS WRONG FOR CG #%d", c);
-		if ((fs->e2fs_gd[c].ext2bgd_nbfree != nbfree ||
-			fs->e2fs_gd[c].ext2bgd_nifree != nifree ||
-			fs->e2fs_gd[c].ext2bgd_ndirs != ndirs) &&
+		(void)snprintf(msg, sizeof(msg),
+		    "SUMMARY INFORMATIONS WRONG FOR CG #%d", c);
+		if ((fs2h16(fs->e2fs_gd[c].ext2bgd_nbfree) != nbfree ||
+			fs2h16(fs->e2fs_gd[c].ext2bgd_nifree) != nifree ||
+			fs2h16(fs->e2fs_gd[c].ext2bgd_ndirs) != ndirs) &&
 			dofix(&idesc[0], msg)) {
-			fs->e2fs_gd[c].ext2bgd_nbfree = nbfree;
-			fs->e2fs_gd[c].ext2bgd_nifree = nifree;
-			fs->e2fs_gd[c].ext2bgd_ndirs = ndirs;
+			fs->e2fs_gd[c].ext2bgd_nbfree = h2fs16(nbfree);
+			fs->e2fs_gd[c].ext2bgd_nifree = h2fs16(nifree);
+			fs->e2fs_gd[c].ext2bgd_ndirs = h2fs16(ndirs);
 			sbdirty();
 		}
 
@@ -207,7 +207,8 @@ pass5()
 			print_bmap(bbmap, fs->e2fs_bsize);
 		}
 
-		snprintf(msg, 255, "BLK(S) MISSING IN BIT MAPS #%d", c);
+		(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);
@@ -219,7 +220,8 @@ pass5()
 			printf("ibmap:\n");
 			print_bmap(ibmap, fs->e2fs_bsize);
 		}
-		snprintf(msg, 255, "INODE(S) MISSING IN BIT MAPS #%d", c);
+		(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);
diff --git a/sbin/fsck_ext2fs/setup.c b/sbin/fsck_ext2fs/setup.c
index 9af2f9640a6..e13d8c0055c 100644
--- a/sbin/fsck_ext2fs/setup.c
+++ b/sbin/fsck_ext2fs/setup.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: setup.c,v 1.5 1999/08/17 09:13:14 millert Exp $	*/
+/*	$OpenBSD: setup.c,v 1.6 2000/04/26 23:26:06 jasoni Exp $	*/
 /*	$NetBSD: setup.c,v 1.1 1997/06/11 11:22:01 bouyer Exp $	*/
 
 /*
@@ -42,7 +42,7 @@ static char sccsid[] = "@(#)setup.c	8.5 (Berkeley) 11/23/94";
 #if 0
 static char rcsid[] = "$NetBSD: setup.c,v 1.1 1997/06/11 11:22:01 bouyer Exp $";
 #else
-static char rcsid[] = "$OpenBSD: setup.c,v 1.5 1999/08/17 09:13:14 millert Exp $";
+static char rcsid[] = "$OpenBSD: setup.c,v 1.6 2000/04/26 23:26:06 jasoni Exp $";
 #endif
 #endif
 #endif /* not lint */
@@ -55,6 +55,7 @@ static char rcsid[] = "$OpenBSD: setup.c,v 1.5 1999/08/17 09:13:14 millert Exp $
 #include <sys/stat.h>
 #include <sys/ioctl.h>
 #include <sys/disklabel.h>
+#include <sys/file.h>
 
 #include <errno.h>
 #include <fcntl.h>
@@ -67,12 +68,10 @@ static char rcsid[] = "$OpenBSD: setup.c,v 1.5 1999/08/17 09:13:14 millert Exp $
 #include "extern.h"
 #include "fsutil.h"
 
-struct bufarea asblk;
-#define altsblock (*asblk.b_un.b_fs)
 #define POWEROF2(num)	(((num) & ((num) - 1)) == 0)
 
 void badsb __P((int, char *));
-/* int calcsb __P((char *, int, struct m_ext2fs *)); */
+int calcsb __P((char *, int, struct m_ext2fs *));
 static struct disklabel *getdisklabel __P((char *, int));
 static int readsb __P((int));
 
@@ -80,7 +79,7 @@ int
 setup(dev)
 	char *dev;
 {
-	long cg, size, asked, i, j;
+	long cg, asked, i;
 	long bmapsize;
 	struct disklabel *lp;
 	off_t sizepb;
@@ -119,8 +118,8 @@ setup(dev)
 	lfdir = 0;
 	initbarea(&sblk);
 	initbarea(&asblk);
-	sblk.b_un.b_buf = malloc(sizeof(struct m_ext2fs));
-	asblk.b_un.b_buf = malloc(sizeof(struct m_ext2fs));
+	sblk.b_un.b_buf = malloc(SBSIZE);
+	asblk.b_un.b_buf = malloc(SBSIZE);
 	if (sblk.b_un.b_buf == NULL || asblk.b_un.b_buf == NULL)
 		errexit("cannot allocate space for superblock\n");
 	if ((lp = getdisklabel((char *)NULL, fsreadfd)) != NULL)
@@ -183,6 +182,7 @@ setup(dev)
 		if (reply("SET TO DEFAULT") == 1) {
 			sblock.e2fs.e2fs_rbcount = sblock.e2fs.e2fs_bcount * 0.1;
 			sbdirty();
+			dirty(&asblk);
 		}
 	}
 	if (sblock.e2fs.e2fs_bpg != sblock.e2fs.e2fs_fpg) {
@@ -191,7 +191,7 @@ setup(dev)
 		return 0;
 	}
 	if (asblk.b_dirty && !bflag) {
-		memcpy(&altsblock, &sblock, (size_t)SBSIZE);
+		copyback_sb(&asblk);
 		flush(fswritefd, &asblk);
 	}
 	/*
@@ -199,6 +199,8 @@ setup(dev)
 	 */
 
 	sblock.e2fs_gd = malloc(sblock.e2fs_ngdb * sblock.e2fs_bsize);
+	if (sblock.e2fs_gd == NULL)
+		errexit("out of memory\n");
 	asked = 0;
 	for (i=0; i < sblock.e2fs_ngdb; i++) {
 		if (bread(fsreadfd,(char *)
@@ -227,14 +229,20 @@ setup(dev)
 			(unsigned)(maxino + 1));
 		goto badsblabel;
 	}
+	typemap = calloc((unsigned)(maxino + 1), sizeof(char));
+	if (typemap == NULL) {
+		printf("cannot alloc %u bytes for typemap\n",
+		    (unsigned)(maxino + 1));
+		goto badsblabel; 
+	}
 	lncntp = (int16_t *)calloc((unsigned)(maxino + 1), sizeof(int16_t));
 	if (lncntp == NULL) {
 		printf("cannot alloc %u bytes for lncntp\n", 
-			(unsigned)(maxino + 1) * sizeof(int16_t));
+			(unsigned)((maxino + 1) * sizeof(int16_t)));
 		goto badsblabel;
 	}
 	for (numdirs = 0, cg = 0; cg < sblock.e2fs_ncg; cg++) {
-		numdirs += sblock.e2fs_gd[cg].ext2bgd_ndirs;
+		numdirs += fs2h16(sblock.e2fs_gd[cg].ext2bgd_ndirs);
 	}
 	inplast = 0;
 	listmax = numdirs + 10;
@@ -244,7 +252,7 @@ setup(dev)
 		sizeof(struct inoinfo *));
 	if (inpsort == NULL || inphead == NULL) {
 		printf("cannot alloc %u bytes for inphead\n", 
-			(unsigned)numdirs * sizeof(struct inoinfo *));
+			(unsigned)(numdirs * sizeof(struct inoinfo *)));
 		goto badsblabel;
 	}
 	bufinit();
@@ -264,10 +272,14 @@ readsb(listerr)
 {
 	daddr_t super = bflag ? bflag : SBOFF / dev_bsize;
 
-	if (bread(fsreadfd, (char *)&sblock.e2fs, super, (long)SBSIZE) != 0)
+	if (bread(fsreadfd, (char *)sblk.b_un.b_fs, super, (long)SBSIZE) != 0)
 		return (0);
 	sblk.b_bno = super;
 	sblk.b_size = SBSIZE;
+
+	/* Copy the superblock in memory */
+	e2fs_sbload(sblk.b_un.b_fs, &sblock.e2fs);
+	
 	/*
 	 * run a few consistency checks of the super block
 	 */
@@ -294,14 +306,6 @@ readsb(listerr)
 	sblock.e2fs_ipb = sblock.e2fs_bsize / sizeof(struct ext2fs_dinode);
 	sblock.e2fs_itpg = sblock.e2fs.e2fs_ipg/sblock.e2fs_ipb;
 
-	cgoverhead =	1 /* super block */ +
-					sblock.e2fs_ngdb +
-					1 /* block bitmap */ +
-					1 /* inode bitmap */ +
-					sblock.e2fs_itpg;
-
-	if (debug) /* DDD */
-		printf("cg overhead %d blocks \n", cgoverhead);
 	/*
 	 * Compute block size that the filesystem is based on,
 	 * according to fsbtodb, and adjust superblock block number
@@ -310,6 +314,11 @@ readsb(listerr)
 	super *= dev_bsize;
 	dev_bsize = sblock.e2fs_bsize / fsbtodb(&sblock, 1);
 	sblk.b_bno = super / dev_bsize;
+
+	getblk(&asblk, 1 * sblock.e2fs.e2fs_bpg + sblock.e2fs.e2fs_first_dblock,
+		(long)SBSIZE);
+	if (asblk.b_errs)
+		return (0);
 	if (bflag) {
 		havesb = 1;
 		return (1);
@@ -320,36 +329,49 @@ readsb(listerr)
 	 * of whole super block against an alternate super block.
 	 * When an alternate super-block is specified this check is skipped.
 	 */
-	getblk(&asblk, 1 * sblock.e2fs.e2fs_bpg + sblock.e2fs.e2fs_first_dblock,
-		(long)SBSIZE);
-	if (asblk.b_errs)
-		return (0);
-	altsblock.e2fs.e2fs_rbcount = sblock.e2fs.e2fs_rbcount;
-	altsblock.e2fs.e2fs_fbcount = sblock.e2fs.e2fs_fbcount;
-	altsblock.e2fs.e2fs_ficount = sblock.e2fs.e2fs_ficount;
-	altsblock.e2fs.e2fs_mtime = sblock.e2fs.e2fs_mtime;
-	altsblock.e2fs.e2fs_wtime = sblock.e2fs.e2fs_wtime;
-	altsblock.e2fs.e2fs_mnt_count = sblock.e2fs.e2fs_mnt_count;
-	altsblock.e2fs.e2fs_max_mnt_count = sblock.e2fs.e2fs_max_mnt_count;
-	altsblock.e2fs.e2fs_state = sblock.e2fs.e2fs_state;
-	altsblock.e2fs.e2fs_beh = sblock.e2fs.e2fs_beh;
-	altsblock.e2fs.e2fs_lastfsck = sblock.e2fs.e2fs_lastfsck;
-	altsblock.e2fs.e2fs_fsckintv = sblock.e2fs.e2fs_fsckintv;
-	altsblock.e2fs.e2fs_ruid = sblock.e2fs.e2fs_ruid;
-	altsblock.e2fs.e2fs_rgid = sblock.e2fs.e2fs_rgid;
-	if (memcmp(&(sblock.e2fs), &(altsblock.e2fs), (int)SBSIZE)) {
+	asblk.b_un.b_fs->e2fs_rbcount = sblk.b_un.b_fs->e2fs_rbcount;
+	asblk.b_un.b_fs->e2fs_fbcount = sblk.b_un.b_fs->e2fs_fbcount;
+	asblk.b_un.b_fs->e2fs_ficount = sblk.b_un.b_fs->e2fs_ficount;
+	asblk.b_un.b_fs->e2fs_mtime = sblk.b_un.b_fs->e2fs_mtime;
+	asblk.b_un.b_fs->e2fs_wtime = sblk.b_un.b_fs->e2fs_wtime;
+	asblk.b_un.b_fs->e2fs_mnt_count = sblk.b_un.b_fs->e2fs_mnt_count;
+	asblk.b_un.b_fs->e2fs_max_mnt_count = sblk.b_un.b_fs->e2fs_max_mnt_count;
+	asblk.b_un.b_fs->e2fs_state = sblk.b_un.b_fs->e2fs_state;
+	asblk.b_un.b_fs->e2fs_beh = sblk.b_un.b_fs->e2fs_beh;
+	asblk.b_un.b_fs->e2fs_lastfsck = sblk.b_un.b_fs->e2fs_lastfsck;
+	asblk.b_un.b_fs->e2fs_fsckintv = sblk.b_un.b_fs->e2fs_fsckintv;
+	asblk.b_un.b_fs->e2fs_ruid = sblk.b_un.b_fs->e2fs_ruid;
+	asblk.b_un.b_fs->e2fs_rgid = sblk.b_un.b_fs->e2fs_rgid;
+	asblk.b_un.b_fs->e2fs_block_group_nr =
+	    sblk.b_un.b_fs->e2fs_block_group_nr;
+	if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+	    ((sblock.e2fs.e2fs_features_incompat & ~EXT2F_INCOMPAT_SUPP) ||
+	    (sblock.e2fs.e2fs_features_rocompat & ~EXT2F_ROCOMPAT_SUPP))) {
+		if (debug) {
+			printf("compat 0x%08x, incompat 0x%08x, compat_ro "
+			    "0x%08x\n",
+			    sblock.e2fs.e2fs_features_compat,
+			    sblock.e2fs.e2fs_features_incompat,
+			    sblock.e2fs.e2fs_features_rocompat);
+		}
+		badsb(listerr,"INCOMPATIBLE FEATURE BITS IN SUPER BLOCK");
+		return 0;
+	}
+	if (memcmp(sblk.b_un.b_fs, asblk.b_un.b_fs, SBSIZE)) {
 		if (debug) {
-			long *nlp, *olp, *endlp;
+			u_int32_t *nlp, *olp, *endlp;
 
 			printf("superblock mismatches\n");
-			nlp = (long *)&altsblock;
-			olp = (long *)&sblock;
+			nlp = (u_int32_t *)asblk.b_un.b_fs;
+			olp = (u_int32_t *)sblk.b_un.b_fs;
 			endlp = olp + (SBSIZE / sizeof *olp);
 			for ( ; olp < endlp; olp++, nlp++) {
 				if (*olp == *nlp)
 					continue;
-				printf("offset %d, original %ld, alternate %ld\n",
-					olp - (long *)&sblock, *olp, *nlp);
+				printf("offset %ld, original %ld, alternate %ld\n",
+					(long)(olp - (u_int32_t *)sblk.b_un.b_fs),
+					(long)fs2h32(*olp),
+					(long)fs2h32(*nlp));
 			}
 		}
 		badsb(listerr,
@@ -360,6 +382,39 @@ readsb(listerr)
 	return (1);
 }
 
+void
+copyback_sb(bp)
+	struct bufarea *bp;
+{
+	/* Copy the in-memory superblock back to buffer */
+	bp->b_un.b_fs->e2fs_icount = fs2h32(sblock.e2fs.e2fs_icount);
+	bp->b_un.b_fs->e2fs_bcount = fs2h32(sblock.e2fs.e2fs_bcount);
+	bp->b_un.b_fs->e2fs_rbcount = fs2h32(sblock.e2fs.e2fs_rbcount);
+	bp->b_un.b_fs->e2fs_fbcount = fs2h32(sblock.e2fs.e2fs_fbcount);
+	bp->b_un.b_fs->e2fs_ficount = fs2h32(sblock.e2fs.e2fs_ficount);
+	bp->b_un.b_fs->e2fs_first_dblock =
+					fs2h32(sblock.e2fs.e2fs_first_dblock);
+	bp->b_un.b_fs->e2fs_log_bsize = fs2h32(sblock.e2fs.e2fs_log_bsize);
+	bp->b_un.b_fs->e2fs_fsize = fs2h32(sblock.e2fs.e2fs_fsize);
+	bp->b_un.b_fs->e2fs_bpg = fs2h32(sblock.e2fs.e2fs_bpg);
+	bp->b_un.b_fs->e2fs_fpg = fs2h32(sblock.e2fs.e2fs_fpg);
+	bp->b_un.b_fs->e2fs_ipg = fs2h32(sblock.e2fs.e2fs_ipg);
+	bp->b_un.b_fs->e2fs_mtime = fs2h32(sblock.e2fs.e2fs_mtime);
+	bp->b_un.b_fs->e2fs_wtime = fs2h32(sblock.e2fs.e2fs_wtime);
+	bp->b_un.b_fs->e2fs_lastfsck = fs2h32(sblock.e2fs.e2fs_lastfsck);
+	bp->b_un.b_fs->e2fs_fsckintv = fs2h32(sblock.e2fs.e2fs_fsckintv);
+	bp->b_un.b_fs->e2fs_creator = fs2h32(sblock.e2fs.e2fs_creator);
+	bp->b_un.b_fs->e2fs_rev = fs2h32(sblock.e2fs.e2fs_rev);
+	bp->b_un.b_fs->e2fs_mnt_count = fs2h16(sblock.e2fs.e2fs_mnt_count);
+	bp->b_un.b_fs->e2fs_max_mnt_count =
+					fs2h16(sblock.e2fs.e2fs_max_mnt_count);
+	bp->b_un.b_fs->e2fs_magic = fs2h16(sblock.e2fs.e2fs_magic);
+	bp->b_un.b_fs->e2fs_state = fs2h16(sblock.e2fs.e2fs_state);
+	bp->b_un.b_fs->e2fs_beh = fs2h16(sblock.e2fs.e2fs_beh);
+	bp->b_un.b_fs->e2fs_ruid = fs2h16(sblock.e2fs.e2fs_ruid);
+	bp->b_un.b_fs->e2fs_rgid = fs2h16(sblock.e2fs.e2fs_rgid);
+}
+
 void
 badsb(listerr, s)
 	int listerr;
@@ -389,7 +444,6 @@ calcsb(dev, devfd, fs)
 	register struct disklabel *lp;
 	register struct partition *pp;
 	register char *cp;
-	int i;
 
 	cp = strchr(dev, '\0') - 1;
 	if ((cp == (char *)-1 || (*cp < 'a' || *cp > 'h')) && !isdigit(*cp)) {
@@ -401,17 +455,17 @@ calcsb(dev, devfd, fs)
 		pp = &lp->d_partitions[0];
 	else
 		pp = &lp->d_partitions[*cp - 'a'];
-	if (pp->p_fstype != FS_BSDFFS) {
-		pfatal("%s: NOT LABELED AS A BSD FILE SYSTEM (%s)\n",
+	if (pp->p_fstype != FS_EXT2FS) {
+		pfatal("%s: NOT LABELED AS A EXT2 FILE SYSTEM (%s)\n",
 			dev, pp->p_fstype < FSMAXTYPES ?
 			fstypenames[pp->p_fstype] : "unknown");
 		return (0);
 	}
 	memset(fs, 0, sizeof(struct m_ext2fs));
-	fs->e2fs_bsize = 1024; /* XXX to look for altenate SP */
-	fs->e2fs.e2fs_log_bsize = 0;
+	fs->e2fs_bsize = pp->p_fsize;
+	fs->e2fs.e2fs_log_bsize = pp->p_fsize / 1024;
 	fs->e2fs.e2fs_bcount = (pp->p_size * DEV_BSIZE) / fs->e2fs_bsize;
-	fs->e2fs.e2fs_first_dblock = 1;
+	fs->e2fs.e2fs_first_dblock = (fs->e2fs.e2fs_log_bsize == 0) ? 1 : 0;
 	fs->e2fs.e2fs_bpg = fs->e2fs_bsize * NBBY;
 	fs->e2fs_bshift = LOG_MINBSIZE + fs->e2fs.e2fs_log_bsize;
 	fs->e2fs_qbmask = fs->e2fs_bsize - 1;
@@ -423,8 +477,6 @@ calcsb(dev, devfd, fs)
 	fs->e2fs_ngdb = howmany(fs->e2fs_ncg,
 		fs->e2fs_bsize / sizeof(struct ext2_gd));
 
-
-
 	return (1);
 }
 
@@ -443,3 +495,20 @@ getdisklabel(s, fd)
 	}
 	return (&lab);
 }
+
+daddr_t
+cgoverhead(c)
+	int c;
+{
+	int overh;
+	overh =	1 /* block bitmap */ +
+		1 /* inode bitmap */ +
+		sblock.e2fs_itpg;
+	if (sblock.e2fs.e2fs_rev > E2FS_REV0 &&
+	    sblock.e2fs.e2fs_features_rocompat & EXT2F_ROCOMPAT_SPARSESUPER) {
+		if (cg_has_sb(c) == 0)
+			return overh;
+	}
+	overh += 1 + sblock.e2fs_ngdb;
+	return overh;
+}
diff --git a/sbin/fsck_ext2fs/utilities.c b/sbin/fsck_ext2fs/utilities.c
index d83136ce00d..5f4739a3ef4 100644
--- a/sbin/fsck_ext2fs/utilities.c
+++ b/sbin/fsck_ext2fs/utilities.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: utilities.c,v 1.4 1997/06/25 18:40:43 kstailey Exp $	*/
+/*	$OpenBSD: utilities.c,v 1.5 2000/04/26 23:26:07 jasoni Exp $	*/
 /*	$NetBSD: utilities.c,v 1.1 1997/06/11 11:22:02 bouyer Exp $	*/
 
 /*
@@ -42,7 +42,7 @@ static char sccsid[] = "@(#)utilities.c	8.1 (Berkeley) 6/5/93";
 #if 0
 static char rcsid[] = "$NetBSD: utilities.c,v 1.1 1997/06/11 11:22:02 bouyer Exp $";
 #else
-static char rcsid[] = "$OpenBSD: utilities.c,v 1.4 1997/06/25 18:40:43 kstailey Exp $";
+static char rcsid[] = "$OpenBSD: utilities.c,v 1.5 2000/04/26 23:26:07 jasoni Exp $";
 #endif
 #endif
 #endif /* not lint */
@@ -71,7 +71,7 @@ int
 ftypeok(dp)
 	struct ext2fs_dinode *dp;
 {
-	switch (dp->e2di_mode & IFMT) {
+	switch (fs2h16(dp->e2di_mode) & IFMT) {
 
 	case IFDIR:
 	case IFREG:
@@ -132,7 +132,8 @@ bufinit()
 	long bufcnt, i;
 	char *bufp;
 
-	pbp = pdirbp = NULL;
+	diskreads = totalreads = 0;
+	pbp = pdirbp = (struct bufarea *)0;
 	bufhead.b_next = bufhead.b_prev = &bufhead;
 	bufcnt = MAXBUFSPACE / sblock.e2fs_bsize;
 	if (bufcnt < MINBUFS)
@@ -174,6 +175,7 @@ getdatablk(blkno, size)
 	if (bp == &bufhead)
 		errexit("deadlocked buffer pool\n");
 	getblk(bp, blkno, size);
+	diskreads++;
 	/* fall through */
 foundit:
 	totalreads++;
@@ -210,7 +212,7 @@ flush(fd, bp)
 	int fd;
 	register struct bufarea *bp;
 {
-	register int i, j;
+	register int i;
 
 	if (!bp->b_dirty)
 		return;
@@ -257,10 +259,13 @@ ckfini(markclean)
 	}
 	flush(fswritefd, &sblk);
 	if (havesb && sblk.b_bno != SBOFF / dev_bsize &&
-	    !preen && reply("UPDATE STANDARD SUPERBLOCK")) {
+	    !preen && reply("UPDATE STANDARD SUPERBLOCKS")) {
 		sblk.b_bno = SBOFF / dev_bsize;
 		sbdirty();
 		flush(fswritefd, &sblk);
+		copyback_sb(&asblk);
+		asblk.b_dirty = 1;
+		flush(fswritefd, &asblk);
 	}
 	for (bp = bufhead.b_prev; bp && bp != &bufhead; bp = nbp) {
 		cnt++;
@@ -271,7 +276,7 @@ ckfini(markclean)
 	}
 	if (bufhead.b_size != cnt)
 		errexit("Panic: lost %d buffers\n", bufhead.b_size - cnt);
-	pbp = pdirbp = NULL;
+	pbp = pdirbp = (struct bufarea *)0;
 	if (markclean && (sblock.e2fs.e2fs_state & E2FS_ISCLEAN) == 0) {
 		/*
 		 * Mark the file system as clean, and sync the superblock.
-- 
2.20.1