Hi,
Please give me a help.
Thank you very much.

----- ԭʼ��Ϣ -----
�����ˣ� Xue Wen Wang
�ռ��ˣ� Jason Liu
����ʱ�䣺 Tue Apr 17 06:35:17 2012
���⣺ Why libcurl sent two request packet for on "curl_multi_add_handle"?

Hi,
I'm sending the HTTP Digest authentication request using LIBCURL, I
found the LIBCURL sending two requests for one calling
"curl_multi_add_handle".
Anyone know this issue?

I set these options, maybe not exactly:
     curl_easy_setopt(m_handle, CURLOPT_VERBOSE, 1);
     curl_easy_setopt(m_handle, CURLOPT_DEBUGFUNCTION, debugCallback);
     curl_easy_setopt(m_handle, CURLOPT_DEBUGDATA, this);
     curl_easy_setopt(m_handle, CURLOPT_PRIVATE, this);
     curl_easy_setopt(m_handle, CURLOPT_ERRORBUFFER, m_curlErrorBuffer);
     curl_easy_setopt(m_handle, CURLOPT_WRITEFUNCTION, writeCallback);
     curl_easy_setopt(m_handle, CURLOPT_WRITEDATA, this);
     curl_easy_setopt(m_handle, CURLOPT_HEADERFUNCTION, headerCallback);
     curl_easy_setopt(m_handle, CURLOPT_WRITEHEADER, this);
     curl_easy_setopt(m_handle, CURLOPT_SOCKOPTFUNCTION, sockOptCallback);
     curl_easy_setopt(m_handle, CURLOPT_SOCKOPTDATA, this);
     curl_easy_setopt(m_handle, CURLOPT_AUTOREFERER, 1);
     curl_easy_setopt(m_handle, CURLOPT_FOLLOWLOCATION, 0);
     curl_easy_setopt(m_handle, CURLOPT_DNS_CACHE_TIMEOUT,
kDNSCacheTimeout);
     curl_easy_setopt(m_handle, CURLOPT_NOSIGNAL, 1);
     curl_easy_setopt(m_handle, CURLOPT_HTTP_VERSION,
CURL_HTTP_VERSION_1_1);
     curl_easy_setopt(m_handle, CURLOPT_SSL_VERIFYPEER, 1L);
     curl_easy_setopt(m_handle, CURLOPT_SSL_VERIFYHOST, 1L);
     curl_easy_setopt(m_handle, CURLOPT_SSL_CTX_FUNCTION,
sslContextCallback);
     curl_easy_setopt(m_handle, CURLOPT_SSL_CTX_DATA, this);
     curl_easy_setopt(m_handle, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
     curl_easy_setopt(m_handle, CURLOPT_USERNAME, request.getUsername());
     curl_easy_setopt(m_handle, CURLOPT_PASSWORD, request.getPassword());
     curl_easy_setopt(m_handle, CURLOPT_HTTPGET, true);

I'm testing this test case: http://test.webdav.org/auth-digest/

As I captured the packets, first time, it sent one request without the
degist credentials, the second time, it sent with the degist
credentials. I did only call the "curl_multi_add_handle" one time.

Can anyone help me?
Thanks.

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Received on 2012-04-17