Re: Is it possible to use data from the response header to a POST in a subsequent GET?

[Gary F. <ga...@in...>]

Hello Robert,

I have my changes working now, although I want to test them a bit more  
before letting them out. I'm having one problem, though. In the  
application I'm testing, the very first URL is a POST request using a  
FORM_STRING.

This seems to cause a failure in loader.c, setup_curl_handle_appl().  
The code is copied below.

When this code is called, cctx->post_data has been allocated but not  
initialized, so it's an empty string. This causes the condition "else  
if (cctx->post_data && cctx->post_data[0])" to fail, and we drop  
through to the "post_data is NULL" error.

I've fixed this by commenting out the second condition:
	else if (cctx->post_data /* && cctx->post_data[0] */)

So far this seems to work for me, but I wonder if I'm missing  
something that might cause an error somewhere else.


if (url->req_type == HTTP_REQ_TYPE_POST)
   {
     /*
        Make POST, using post buffer, if requested.
     */
       if (url->upload_file && url->upload_file_ptr && (!cctx- 
 >post_data || !cctx->post_data[0]))
       {
           curl_easy_setopt(handle, CURLOPT_POST, 1);
       }
       else if (cctx->post_data && cctx->post_data[0])
       {
         /*
            Sets POST as the HTTP request method using either:
            - POST-fields;
            - multipart form-data as in RFC 1867;
         */
         if (init_client_url_post_data (cctx, url) == -1)
           {
             fprintf (stderr,
                      "%s - error: init_client_url_post_data() failed. 
\n",
                      __func__);
             return -1;
           }
       }
       else
       {
         fprintf (stderr, "%s - error: post_data is NULL.\n", __func__);
         return -1;
       }
   }


Thanks,
Gary