From c60338a56124b7cef872965711e81af4b396d28e Mon Sep 17 00:00:00 2001
From: Stelian Pop <stelian@popies.net>
Date: Tue, 8 Feb 2000 12:22:42 +0000
Subject: [PATCH] Problem when restoring a hard link to an inode having the
 immutable or append-only flag set.

---
 CHANGES             |  6 +++++-
 restore/extern.h    |  3 ++-
 restore/utilities.c | 14 +++++++++++++-
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/CHANGES b/CHANGES
index 836a8f7..5f45d06 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,4 @@
-$Id: CHANGES,v 1.40 2000/02/04 20:57:31 stelian Exp $
+$Id: CHANGES,v 1.41 2000/02/08 12:22:42 stelian Exp $
 
 Changes between versions 0.4b13 and 0.4b14 (released ????????????????)
 ======================================================================
@@ -24,6 +24,10 @@ Changes between versions 0.4b13 and 0.4b14 (released ????????????????)
 5.	Added a REPORTING-BUGS file in order to provide a guide
 	on how to correctly report a bug in dump/restore.
 
+6.	Fixed a restore problem when restoring a hard link to an inode
+	having the immutable or append-only attribute set. Thanks to
+	Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
+
 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
 ======================================================================
 
diff --git a/restore/extern.h b/restore/extern.h
index d695677..dfbe5fe 100644
--- a/restore/extern.h
+++ b/restore/extern.h
@@ -4,7 +4,7 @@
  *	Remy Card <card@Linux.EU.Org>, 1994-1997
  *	Stelian Pop <pop@cybercable.fr>, 1999-2000
  *
- *	$Id: extern.h,v 1.7 2000/01/21 10:17:41 stelian Exp $
+ *	$Id: extern.h,v 1.8 2000/02/08 12:22:43 stelian Exp $
  */
 
 /*-
@@ -120,4 +120,5 @@ int		rmtseek __P((int, int));
 
 /* From e2fsprogs */
 int fsetflags __P((const char *, unsigned long));
+int fgetflags __P((const char *, unsigned long *));
 int setflags __P((int, unsigned long));
diff --git a/restore/utilities.c b/restore/utilities.c
index 02c3793..f052071 100644
--- a/restore/utilities.c
+++ b/restore/utilities.c
@@ -40,7 +40,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-	"$Id: utilities.c,v 1.7 2000/01/21 10:17:41 stelian Exp $";
+	"$Id: utilities.c,v 1.8 2000/02/08 12:22:43 stelian Exp $";
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -244,6 +244,18 @@ linkit(char *existing, char *new, int type)
 				ret = link(existing, new);
 				chflags(existing, s.st_flags);
 			}
+#else
+			unsigned long s;
+
+			/*
+			 * Most likely, the immutable or append-only attribute
+			 * is set. Clear the attributes and try again.
+			 */
+			if (fgetflags (existing, &s) != -1 &&
+			    fsetflags (existing, 0) != -1) {
+			    	ret = link(existing, new);
+				fsetflags(existing, s);
+			}
 #endif
 			if (ret < 0) {
 				warn("warning: cannot create hard link %s->%s",
-- 
2.39.5