HardenedBSD/sys
Garrett Wollman 6a7be6e8e0 Obey RFC 793, section 3.4:
Several examples of connection initiation follow.  Although these
  examples do not show connection synchronization using data-carrying
  segments, this is perfectly legitimate, so long as the receiving TCP
  doesn't deliver the data to the user until it is clear the data is
  valid (i.e., the data must be buffered at the receiver until the
  connection reaches the ESTABLISHED state).
1994-08-26 22:27:16 +00:00
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