check msg magic to avoid invalid memory allocate #24
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Now raft uses data[0:4] as the message size, but data[0:4] can be any value, if we not check the messages whether they are sended by raft itself, the memory may be very big. Signed-off-by: kungf <wings.wyang@gmail.com>
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Now raft uses data[0:4] as the message size, but data[0:4] can be
any value, if we not check the messages whether they are sended by
raft itself, the memory may be very big.
Signed-off-by: kungf wings.wyang@gmail.com