Fixed a dangling pointer problem that prevented the http_proxy environment

                                  Changelog

Dan F (24 January 2007)

- Fixed a dangling pointer problem that prevented the http_proxy environment

  variable from being properly used in many cases (and caused test case 63

  to fail).

Daniel (23 January 2007)

- David McCreedy did NTLM changes mainly for non-ASCII platforms:

69 - Jeff Pohlmeyer's curl_multi_socket crashing case. Recipe and instructions

     here: http://curl.haxx.se/mail/lib-2007-01/0022.html

77 - Dan Fandrich's HTTP proxy problem:

     http://curl.haxx.se/mail/lib-2007-01/0120.html

78 - HTTP Pipelining, NULL content

     http://curl.haxx.se/bug/view.cgi?id=1631566

    conn->proxy.name = conn->proxy.rawalloc;

    free(proxydup); /* free the duplicate pointer and not the modified */

    proxy = NULL;   /* this may have just been freed */

    if(!conn->proxy.rawalloc)

      return CURLE_OUT_OF_MEMORY;

  }

  /*************************************************************

   * If the protcol is using SSL and HTTP proxy is used, we set

   * If the protocol is using SSL and HTTP proxy is used, we set

   * the tunnel_proxy bit.

   *************************************************************/

  if((conn->protocol&PROT_SSL) && conn->bits.httpproxy)

    /* set a pointer to the hostname we display */

    fix_hostname(data, conn, &conn->host);

    if(!proxy || !*proxy) {

    if(!conn->proxy.name || !*conn->proxy.name) {

      /* If not connecting via a proxy, extract the port from the URL, if it is

       * there, thus overriding any defaults that might have been set above. */

      conn->port =  conn->remote_port; /* it is the same port */

    if($curl_debug) {

        if(! -f $memdump) {

            logmsg "\n** ALERT! memory debuggin without any output file?\n";

            logmsg "\n** ALERT! memory debugging without any output file?\n";

        }

        else {

            my @memdata=`$memanalyze $memdump`;