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27d7ccda94
The TFTP protocol uses a default block size of 512 bytes. This value is sub-optimal for ethernet devices, which have a MTU (Maximum Transmission Unit) of 1500 bytes. When taking into acount the overhead of the IP and UDP layers, this leaves 1468 bytes for the TFTP payload. This patch introduces a new function: tftp_client_set_blksize() which may be used to change the block size from the default. It has to be called after tftp_client_init() and before tftp_get(). If the server does not support the option, the client will still accept to receive 512-byte blocks. Submitted upstream: https://savannah.nongnu.org/patch/index.php?10462 Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>