Previosly the CoAP server transmitted the first block of data for Block2
transfer, even when a client requested in Block2 request following
block. This patch changes server operation to transmit the payload
block requested by the client.
Signed-off-by: Hubert Miś <hubert.mis@gmail.com>
On the last block answer, the Client still sent another empty message, it didn't take into account the fact that the previous block was sent with m=0. This commit fixed that for me.
