Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Get rid of the msg_peek() function, which has a problem. If there was less
data in the socket buffer than requested by the caller, the function would busy
loop, as select(2) will always return immediately.
We can just receive nvlhdr now, because some time ago we splitted receive of
data from the receive of descriptors.
MFC after: 1 week
