r2067: Prevent nameless $LIBDIR/printing/.tdb from beeing created.

I've seen these on several sites now without knowing how they could get
created.

Guenther

diff --git a/source/printing/printing_db.c b/source/printing/printing_db.c
index 9efb3e8eadfc8c0921630aecb112285eed34ec3e..e13c0ac8880c49d2459339386a535eac555699a2 100644 (file)
--- a/source/printing/printing_db.c
+++ b/source/printing/printing_db.c
@@ -37,6 +37,9 @@ struct tdb_print_db *get_print_db_byname(const char *printername)
        pstring printdb_path;
        BOOL done_become_root = False;
 
+       if (printername == NULL)
+               return NULL;
+
        for (p = print_db_head, last_entry = print_db_head; p; p = p->next) {
                /* Ensure the list terminates... JRA. */
                SMB_ASSERT(p->next != print_db_head);