ncd: modules: socket: Implement _caller in client process.
ncd: modules: socket: Implement _caller in client process.

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