Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

===================================================================
RCS file: /ftp/cvs/cvsroot/src/sys/lib/libsa/ufs.c,v
rcsdiff: /ftp/cvs/cvsroot/src/sys/lib/libsa/ufs.c,v: warning: Unknown phrases like `commitid ...;' are present.
retrieving revision 1.3
retrieving revision 1.3.2.2
diff -u -p -r1.3 -r1.3.2.2
--- src/sys/lib/libsa/ufs.c	1994/06/20 08:39:01	1.3
+++ src/sys/lib/libsa/ufs.c	1994/07/27 08:03:10	1.3.2.2
@@ -61,7 +61,7 @@
  * any improvements or extensions that they make and grant Carnegie the
  * rights to redistribute these changes.
  * 
- *	$Id: ufs.c,v 1.3 1994/06/20 08:39:01 pk Exp $
+ *	$Id: ufs.c,v 1.3.2.2 1994/07/27 08:03:10 cgd Exp $
  */
 
 /*
@@ -73,6 +73,7 @@
 #include <ufs/ffs/fs.h>
 #include <ufs/ufs/dinode.h>
 #include <ufs/ufs/dir.h>
+#include <lib/libkern/libkern.h>
 
 #include "stand.h"
 
@@ -342,13 +343,11 @@ search_directory(name, f, inumber_p)
 		while (dp < edp) {
 			if (dp->d_ino == (ino_t)0)
 				goto next;
-#if 0
 #if BYTE_ORDER == LITTLE_ENDIAN
 			if (fp->f_fs->fs_maxsymlinklen <= 0)
 				namlen = dp->d_type;
 			else
 #endif
-#endif
 				namlen = dp->d_namlen;
 			if (namlen == length &&
 			    !strcmp(name, dp->d_name)) {
@@ -402,6 +401,7 @@ ufs_open(path, f)
 		rc = EINVAL;
 		goto out;
 	}
+	ffs_oldfscompat(fs);
 
 	/*
 	 * Calculate indirect block levels.
@@ -655,3 +655,31 @@ ufs_stat(f, sb)
 	sb->st_size = fp->f_di.di_size;
 	return (0);
 }
+
+/*
+ * Sanity checks for old file systems.
+ *
+ * XXX - goes away some day.
+ */
+ffs_oldfscompat(fs)
+	struct fs *fs;
+{
+	int i;
+
+	fs->fs_npsect = max(fs->fs_npsect, fs->fs_nsect);	/* XXX */
+	fs->fs_interleave = max(fs->fs_interleave, 1);		/* XXX */
+	if (fs->fs_postblformat == FS_42POSTBLFMT)		/* XXX */
+		fs->fs_nrpos = 8;				/* XXX */
+	if (fs->fs_inodefmt < FS_44INODEFMT) {			/* XXX */
+		quad_t sizepb = fs->fs_bsize;			/* XXX */
+								/* XXX */
+		fs->fs_maxfilesize = fs->fs_bsize * NDADDR - 1;	/* XXX */
+		for (i = 0; i < NIADDR; i++) {			/* XXX */
+			sizepb *= NINDIR(fs);			/* XXX */
+			fs->fs_maxfilesize += sizepb;		/* XXX */
+		}						/* XXX */
+		fs->fs_qbmask = ~fs->fs_bmask;			/* XXX */
+		fs->fs_qfmask = ~fs->fs_fmask;			/* XXX */
+	}							/* XXX */
+	return (0);
+}