> sending all the unnecessary data? If you select HTTP 1.1 mode, libcurl
> should just send the headers and an Expect: 100-continue header and
> wait for a response before sending the body.

Sorry about the not good part, the problem description was written by
somebody else and I didn't catch it before sending the email.

That said, we are initializing our session to use HTTP 1.1. I'll include
the rest of our session initialization options at the bottom of this email.

The NTLM auth seems to work for an HTTP GET, we are just having problems
with the HTTP POST when going through an NTLM Auth based proxy.

In the ethereal trace I don't see a Expect: 100-continue header item from
libCurl to FreeProxy.

----- Rom

    curlEasy = curl_easy_init(); // get a curl_easy handle to use
    if (!curlEasy) {
        msg_printf(0, MSG_ERROR, "Couldn't create curlEasy handle");
        return ERR_HTTP_ERROR; // returns 0 (CURLM_OK) on successful handle
creation
    }

    // OK, we have a handle, now open an asynchronous libcurl connection

    // set the URL to use
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_URL, m_url);

    curlErr = curl_easy_setopt(curlEasy, CURLOPT_SSL_VERIFYHOST, 2L);

    // the following sets "tough" certificate checking
    // (i.e. whether self-signed is OK)
    // if zero below, will accept self-signed certificates
    // (cert not 3rd party trusted)
    // if non-zero below, you need a valid 3rd party CA (i.e. Verisign,
Thawte)
    //
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_SSL_VERIFYPEER, 1L);

    // if the above is nonzero, you need the following:
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_CAINFO, "ca-bundle.crt");

    // set the user agent as this boinc client & version
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_USERAGENT,
g_user_agent_string);

    // bypass any signal handlers that curl may want to install
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_NOSIGNAL, 1L);
    // bypass progress meter
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_NOPROGRESS, 1L);

    // setup timeouts
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_TIMEOUT, 0L);
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_LOW_SPEED_LIMIT, 10L);
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_LOW_SPEED_TIME, 300L);
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_CONNECTTIMEOUT, 120L);
    
    // force curl to use HTTP/1.1
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_HTTP_VERSION,
CURL_HTTP_VERSION_1_1);
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_MAXREDIRS, 50L);
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_AUTOREFERER, 1L);
    curlErr = curl_easy_setopt(curlEasy, CURLOPT_FOLLOWLOCATION, 1L);

    // if we tell Curl to accept any encoding (e.g. deflate)
    // it seems to accept them all, which screws up projects that
    // use gzip at the application level.
    // So, detect this and don't accept any encoding in that case
    //
    if (!out || !ends_with(std::string(out), std::string(".gz"))) {
        curlErr = curl_easy_setopt(curlEasy, CURLOPT_ENCODING, "");
    }

    if (pi.use_http_proxy) {
        // setup a basic http proxy
        curlErr = curl_easy_setopt(curlEasy, CURLOPT_PROXYTYPE,
CURLPROXY_HTTP);
        curlErr = curl_easy_setopt(curlEasy, CURLOPT_PROXYPORT, (long)
pi.http_server_port);
        curlErr = curl_easy_setopt(curlEasy, CURLOPT_PROXY, (char*)
pi.http_server_name);

        if (pi.use_http_auth) {
            curlErr = curl_easy_setopt(curlEasy, CURLOPT_PROXYAUTH,
CURLAUTH_ANY);
            sprintf(szCurlProxyUserPwd, "%s:%s", pi.http_user_name,
pi.http_user_passwd);
            curlErr = curl_easy_setopt(curlEasy, CURLOPT_PROXYUSERPWD,
szCurlProxyUserPwd);
        }
    }