#pragma	lib	"libip.a" int	eipconv(void*, Fconv*);int	parseip(uchar*, char*);int	parseether(uchar*, char*);int	myipaddr(uchar*, char*);int	myetheraddr(uchar*, char*);void	maskip(uchar*, uchar*, uchar*);int	equivip(uchar*, uchar*); extern uchar classmask[4][4]; #define CLASS(p) ((*(uchar*)(p))>>6)