* PR162
* net/if_ppp.c ppp_txdaemon(), net/if_pppvar.h pppstart(): Local
variables must not be used in a device write routines. Now
ppp_softc structure have own character for writing to device
(sc_outchar). I think that converting local variables to static
is not a right solution, because problems will occur in the case
of two or more ppp instances.
* net/ppp_tty.c pppstart(): Type of the ioffset variable must be
u_long, otherwise in the case of the big output packet endless
loop may occur.
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