bettersupport for HTTP return codes 300-399

        data->newurl = NULL; /* don't show! */

        data->bits.urlstringalloc = TRUE; /* the URL is allocated */

        infof(data, "Follows Location: to new URL: '%s'\n", data->url);

        /*

         * We get here when the HTTP code is 300-399. We need to perform

         * differently based on exactly what return code there was.

         * Discussed on the curl mailing list and posted about on the 26th

         * of January 2001.

         */

        switch(data->progress.httpcode) {

        case 300: /* Multiple Choices */

        case 301: /* Moved Permanently */

        case 302: /* Found */

        case 306: /* Not used */

        case 307: /* Temporary Redirect */

        default:  /* for all unknown ones */

          /* These are explicitly mention since I've checked RFC2616 and they

           * seem to be OK to POST to.

           */

          break;

        case 303: /* See Other */

          /* Disable both types of POSTs, since doing a second POST when

           following isn't what anyone would want! */

           * following isn't what anyone would want! */

          data->bits.http_post = FALSE;

          data->bits.http_formpost = FALSE;

        infof(data, "Follows Location: to new URL: '%s'\n", data->url);

          data->httpreq = HTTPREQ_GET; /* enfore GET request */

          infof(data, "Disables POST\n");

          break;

        case 304: /* Not Modified */

          /* 304 means we did a conditional request and it was "Not modified".

           * We shouldn't get any Location: header in this response!

           */

          break;

        case 305: /* Use Proxy */

          /* (quote from RFC2616, section 10.3.6):

           * "The requested resource MUST be accessed through the proxy given

           * by the Location field. The Location field gives the URI of the

           * proxy.  The recipient is expected to repeat this single request

           * via the proxy. 305 responses MUST only be generated by origin

           * servers."

           */

          break;

        }

        curl_disconnect(c_connect);

        continue;

      }