#include <plan9.h>#include <fcall.h>#include <u9fs.h> static char*noneauth(Fcall *rx, Fcall *tx){	USED(rx);	USED(tx);	return "u9fs authnone: no authentication required";} static char*noneattach(Fcall *rx, Fcall *tx){	USED(rx);	USED(tx);	return nil;} Auth authnone = {	"none",	noneauth,	noneattach,};