reply(550, "Can't get current directory: %s.", path);
reply(550, "Can't get current directory: %s.", strerror(errno));
pwd(){	char path[MAXPATHLEN];	if (getcwd(path, sizeof path) == (char *)NULL)		reply(550, "Can't get current directory: %s.", path);	else		replydirname(path, "is current directory.");}