我刚刚使用libouth和libcurl从sina weibo获取信息。这里是我的例子为你介绍。你也可以在测试中引用liboauth测试程序dir，oauthtest.c

I have just use the libouth and libcurl to get information from sina weibo. here is my example for you refer. you can also refer the liboauth test programmer in the tests dir, oauthtest.c

    if (use_post)
    {
        req_url = oauth_sign_url2(test_call_uri, &postarg, OA_HMAC, NULL, c_key, c_secret, t_key, t_secret);
        reply = oauth_http_post(req_url,postarg);
    }