* fhandler.h (class fhandler_socket): Remove prot_info_ptr.

	* fhandler.h (class fhandler_socket): Remove prot_info_ptr.
	(fhandler_socket::fixup_before_fork_exec): Remove.
	(fhandler_socket::fixup_after_exec): Remove.
	(fhandler_socket::need_fixup_before): Remove.
	* fhandler_socket.cc (fhandler_socket::fhandler_socket): Drop
	initializing prot_info_ptr.  Remove unused code.
	(fhandler_socket::~fhandler_socket): Drop free'ing prot_info_ptr.
	(struct wsa_event): Rename connect_errorcode to errorcode.
	(fhandler_socket::evaluate_events): Handle FD_CLOSE error condition
	as FD_CONNECT error condition, except, never reset an FD_CLOSE error
	condition.  Always set FD_WRITE after successfully recorded FD_CONNECT.
	(fhandler_socket::fixup_before_fork_exec): Remove.
	(fhandler_socket::fixup_after_fork): Revert to using handle duplication.
	(fhandler_socket::fixup_after_exec): Remove.
	(fhandler_socket::dup): Revert to using handle duplication.
	(fhandler_socket::send_internal): Only call wait_for_events in case
	of WSAEWOULDBLOCK condition.
	(fhandler_socket::set_close_on_exec): Call
	fhandler_base::set_close_on_exec.
	* net.cc (fdsock): Just set socket to inheritable on non-NT.  Don't
	call inc_need_fixup_before.
	* select.cc (peek_socket): Don't set except_ready on every FD_CLOSE,
	just on error.