* fhandler_socket.cc (get_inet_addr): Rearrange for better readability.

	* fhandler_socket.cc (get_inet_addr): Rearrange for better readability.
	Make waiting loop interruptible and cancelable.  Check for SYSTEM DOS
	flag before reading the file.  Change return value to return 0 on
	success, SOCKET_ERROR on failure.
	(fhandler_socket::bind): Only set R/O DOS flag on filesystems not
	supporting ACLs.
	(fhandler_socket::connect): Accommodate changed return values from
	get_inet_addr.  Use SOCKET_ERROR instead of -1.
	(fhandler_socket::sendto): Accommodate changed return values from
	get_inet_addr.
	* syslog.cc (connect_syslogd): Ditto.