I don't think we should go so far as to have a new method just for
retrieving multipart messages.
As for the returned message, how about something like this to send foo.gif,
bar.xbm, and baz.xpm?
HTTP/1.0 200 OK
Date: Friday, 08-Apr-94 18:47:32 GMT
Server: NCSA/1.1
MIME-version: 1.0
Content-type: multipart/mixed; separator=--foo
Last-modified: Thursday, 31-Mar-94 16:16:57 GMT
--foo
Content-type: image/gif
Content-id: foo.gif
Content-length: xxxx
[image data]
--foo
Content-type: image/x-xbitmap
Content-id: bar.xbm
Content-length: xxxxx
[image data]
--foo
Content-type: image/x-xpixmap
Content-id: baz.xpm
Content-length: xxxx
[image data]
[close connection]
-Bill P.