#include <u.h>#include <libc.h>#include <authsrv.h>#include <bio.h>#include "authcmdlib.h" static intgetkey(char *authkey){	Nvrsafe safe; 	if(readnvram(&safe, 0) < 0)		return -1;	memmove(authkey, safe.machkey, DESKEYLEN);	memset(&safe, 0, sizeof safe);	return 0;} intgetauthkey(char *authkey){	if(getkey(authkey) == 0)		return 1;	print("can't read NVRAM, please enter machine key\n");	getpass(authkey, nil, 0, 1);	return 1;}