If no error is set, give "BUG: Unknown error" rather than try to print NULL

which crashes in some systems.

--HG--
branch : HEAD

diff --git a/src/pop3/client.c b/src/pop3/client.c
index c8e34d15c2821b5601328c66342e7934f234ab44..252c2647152327c011ac84036426060452c5b7ea 100644 (file)
--- a/src/pop3/client.c
+++ b/src/pop3/client.c
@@ -189,7 +189,8 @@ void client_send_storage_error(struct client *client)
        const char *error;
 
        error = client->storage->get_last_error(client->storage, NULL);
-       client_send_line(client, "-ERR %s", error);
+       client_send_line(client, "-ERR %s", error != NULL ? error :
+                        "BUG: Unknown error");
 }
 
 static void client_input(void *context)