Send response on quota exceeded

So far, slcl would just close the connection with a client when the
Content-Length of an incoming request exceeded the user quota, without
any meaningful information given back to the user.

Now, slcl responds with a HTML file with meaningful information about
the error.

Limitations:

- While this commits has been successfully tested on ungoogled-chromium,
LibreWolf (and I assume Firefox and any other derivates too) does not
seem to receive the response from the server.
    - However, this issue only occurred during local testing, but not
on remote instances.

1 files changed, 1 insertions, 1 deletions

diff --git a/handler.h b/handler.h
index d851f65..38de97b 100644
--- a/handler.h
+++ b/handler.h
@@ -11,7 +11,7 @@ struct handler_cfg
 {
     const char *tmpdir;
     int (*length)(unsigned long long len, const struct http_cookie *c,
-        void *user);
+        struct http_response *r, void *user);
     void *user;
 };