Check a pointer in skipdirs() before dereferencing it. I don't fully

understand why it can become a null pointer under some circumstances,
but i've got a pile of tapes where this happens, and running it thru a
debugger proved that simply ending the loop in this case did the right
thing.

Anyway, it cannot make it worse than now, where restore kills itself
with "Memory fault".

1 files changed, 1 insertions, 1 deletions

diff --git a/sbin/restore/dirs.c b/sbin/restore/dirs.c
index 8860f5b..2f8f2e6 100644
--- a/sbin/restore/dirs.c
+++ b/sbin/restore/dirs.c
@@ -201,7 +201,7 @@ void
 skipdirs()
 {
 
-	while ((curfile.dip->di_mode & IFMT) == IFDIR) {
+	while (curfile.dip && (curfile.dip->di_mode & IFMT) == IFDIR) {
 		skipfile();
 	}
 }