Cache network interface information

[platform/upstream/glibc.git] / nscd / hstcache.c

diff --git a/nscd/hstcache.c b/nscd/hstcache.c
index 1ab5860..4d68ade 100644 (file)
--- a/nscd/hstcache.c
+++ b/nscd/hstcache.c
@@ -141,10 +141,15 @@ cache_addhst (struct database_dyn *db, int fd, request_header *req,
                                        MSG_NOSIGNAL)) != total)
            all_written = false;
 
-         dataset = mempool_alloc (db, sizeof (struct dataset) + req->key_len,
-                                  1);
          /* If we cannot permanently store the result, so be it.  */
-         if (dataset != NULL)
+         if (__builtin_expect (db->negtimeout == 0, 0))
+           {
+             /* Mark the old entry as obsolete.  */
+             if (dh != NULL)
+               dh->usable = false;
+           }
+         else if ((dataset = mempool_alloc (db, (sizeof (struct dataset)
+                                                 + req->key_len), 1)) != NULL)
            {
              dataset->head.allocsize = sizeof (struct dataset) + req->key_len;
              dataset->head.recsize = total;