Use "unknown" for absent hostname.

diff --git a/src/libserver/protocol.c b/src/libserver/protocol.c
index e702bfc14b9f4c0aebc4c722f18d6da9eb1ef0cc..1b38c2b2cbb2d22eb6bb4006e1e2d0b153c49aee 100644 (file)
--- a/src/libserver/protocol.c
+++ b/src/libserver/protocol.c
@@ -428,6 +428,11 @@ rspamd_protocol_handle_headers (struct rspamd_task *task,
                return FALSE;
        }
 
+       if (task->hostname == NULL || task->hostname[0] == '\0') {
+               /* We assume that hostname is either "unknown" or existing */
+               task->hostname = rspamd_mempool_strdup (task->task_pool, "unknown");
+       }
+
        return TRUE;
 }