On Sun, 24 Oct 2004, Mohun Biswas wrote:

> This has worked fine for quite a while but I just ran into a special case.
> When the file to be uploaded has zero length the FileUpload parser hangs on
> the server side. A little network tracing reveals that zero-length files
> uploaded via the code above have no closing boundary delimiter.

I could easily repeat this problem, and this patch seems to correct it for me:

--- lib/formdata.c 8 Oct 2004 08:18:08 -0000 1.81
+++ lib/formdata.c 24 Oct 2004 22:24:23 -0000
@@ -1307,9 +1307,13 @@
    if(!form->data)
      return 0; /* nothing, error, empty */

- if(form->data->type == FORM_FILE)
- return readfromfile(form, buffer, wantedsize);
+ if(form->data->type == FORM_FILE) {
+ gotsize = readfromfile(form, buffer, wantedsize);

+ if(gotsize)
+ /* If positive or -1, return. If zero, continue! */
+ return gotsize;
+ }
    do {

      if( (form->data->length - form->sent ) > wantedsize - gotsize) {

-- 
      Daniel Stenberg -- http://curl.haxx.se -- http://daniel.haxx.se
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