Same fix as the tcp stream. (stream_write): Again here. Just like tcp

Same fix as the tcp stream. (stream_write): Again here. Just like tcp

2002-05-02  Jeffrey Stedfast  <fejj@ximian.com>

	* camel-stream-fs.c (stream_read): Same fix as the tcp stream.
	(stream_write): Again here. Just like tcp stream's stream_write(),
	also make sure to save errno before calling fcntl to restore the
	fd flags.

	* camel-tcp-stream-raw.c (stream_read): Handle EINTR errors for
	select().
	(stream_write): Same and also preserve errno when setting the fd
	flags back. If w == -1, return -1.