optimize select() with zero timeout and immediate timer
start last byte of eth mac address at 1
add support for hw time stamping
don't call real close() on sockets
support adjusting PHC
tidy up select()
drop packet in select() if no fd is waiting for it
print client clknetsim messages to stderr
assert real descriptors don't conflict with sockets or timers
don't return already tracked descriptors in socket()
fix recvmsg() with NTP broadcast
initialize clknetsim in functions using node number
support ptp4l from linuxptp
don't remove tmp in examples
print error message when trying to start unknown client