lfpinit() signed or unsigned?

[Hal Murray]

esr at thyrsus.com said:
> If ntpd never converts an incoming l_fp to POSIX time, how will we know when
> and how much to skew the local clock? 

The info you get is a delta.  The subtract is done using NTP epochs.  There 
is never an explicit
"convert this l_fp in NTP epoch to time_t using POSIX epoch" so no need for 
an explicit pivot.

There is an implicit assumption that the two (l_fp) times that you subtract 
are in the same epoch.

The hard part is initialization.  We require that the start-time be 
close-enough which means that there isn't an overflow during the subtract.



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