From 1a15cb8ff36fe1f23d927e43b5653ab68a1bfa7f Mon Sep 17 00:00:00 2001
From: "Michael I. Bushnell" <mib@gnu.org>
Date: Thu, 18 Jul 1996 19:11:03 +0000
Subject: *** empty log message ***

---
 ufs-fsck/pass2.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'ufs-fsck/pass2.c')

diff --git a/ufs-fsck/pass2.c b/ufs-fsck/pass2.c
index 69331946..db63abd7 100644
--- a/ufs-fsck/pass2.c
+++ b/ufs-fsck/pass2.c
@@ -60,6 +60,30 @@ pass2 ()
 	  if (dp->d_reclen == 0
 	      || dp->d_reclen + (void *)dp - buf > DIRBLKSIZ)
 	    {
+	      /* Perhaps the entire dir block is zero.  UFS does that
+		 when extending directories.  So allow preening
+		 to safely patch up all-null dir blocks. */
+	      if (dp == buf)
+		{
+		  char *bp;
+		  for (bp = (char *)buf; bp < (char *)buf + DIRBLKSIZ; bp++)
+		    if (*bp)
+		      goto reclen_problem;
+		  
+		  problem (0, "NULL BLOCK IN DIRECTORY");
+		  if (preen || reply ("PATCH"))
+		    {
+		      /* Mark this entry free, and return. */
+		      dp->d_ino = 0;
+		      dp->d_reclen = DIRBLKSIZ;
+		      pfix ("PATCHED");
+		      return 1;
+		    }
+		  else
+		    return mod;
+		}
+	      
+	    reclen_problem:
 	      problem (1, "BAD RECLEN IN DIRECTORY");
 	      if (reply ("SALVAGE"))
 		{
-- 
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