Multipart form-date 내용

http://www.faqs.org/rfcs/rfc1867.html

Content-type: multipart/form-data, boundary=AaB03x

        --AaB03x
        content-disposition: form-data; name="field1"

        Joe Blow
        --AaB03x
        content-disposition: form-data; name="pics"
        Content-type: multipart/mixed, boundary=BbC04y

        --BbC04y
        Content-disposition: attachment; filename="file1.txt"

        Content-Type: text/plain

        ... contents of file1.txt ...
        --BbC04y
        Content-disposition: attachment; filename="file2.gif"
        Content-type: image/gif
        Content-Transfer-Encoding: binary

          ...contents of file2.gif...
        --BbC04y-- 

        --AaB03x--