MINOR: mux-quic: Don't send an emtpy H3 DATA frame during zero-copy forwarding

It may only happens when there is no data to forward but a last stream frame
must be sent with the FIN bit. It is not invalid, but it is useless to send
an empty H3 DATA frame in that case.

diff --git a/src/mux_quic.c b/src/mux_quic.c
index 8272b93da76b95bcae845fd6f01a8b90acde7e28..97cfb27ce0ba2835fff088a7cb488cfd54cb800d 100644 (file)
--- a/src/mux_quic.c
+++ b/src/mux_quic.c
@@ -3058,7 +3058,8 @@ static size_t qmux_strm_done_ff(struct stconn *sc)
                goto end;
        }
 
-       data += sd->iobuf.offset;
+       if (data)
+               data += sd->iobuf.offset;
        total = qcs->qcc->app_ops->done_ff(qcs);
 
        if (data || qcs->flags & QC_SF_FIN_STREAM)