Hi, I attach a patch with some changes and a test case.

In the patch:
-- I copy my 'trailer_headers_buf' into the original buffer and I free
mine at the end.
   (no leaks from 'trailer_headers_buf' anymore)
-- I added a bool variable 'done' so as to update 'data->req.upload_done' at its
   original place.

-------------------------------------------------------------------
List admin: http://cool.haxx.se/list/listinfo/curl-library
Etiquette: http://curl.haxx.se/mail/etiquette.html