misc/ipaddr.h: add function for checking when addresses are in the same network
misc/ipaddr.h: add function for checking when addresses are in the same network



PowerOlive/badvpn,LazyZhu/badvpn,chrisballinger/badvpn,LazyZhu/badvpn,linfengfeiye/badvpn,LazyZhu/badvpn,Git-Host/badvpn,chrisballinger/badvpn,PowerOlive/badvpn,LazyZhu/badvpn,tempbottle/badvpn,PowerOlive/badvpn,linfengfeiye/badvpn,chrisballinger/badvpn,tempbottle/badvpn,linfengfeiye/badvpn,Git-Host/badvpn,binondord/badvpn,PowerOlive/badvpn,Git-Host/badvpn,Git-Host/badvpn,linfengfeiye/badvpn,binondord/badvpn,PowerOlive/badvpn,tempbottle/badvpn,tempbottle/badvpn,binondord/badvpn,binondord/badvpn,LazyZhu/badvpn,tempbottle/badvpn,linfengfeiye/badvpn,Git-Host/badvpn,binondord/badvpn,chrisballinger/badvpn