curl获得cookie数据<转>

　　CURL *curl;
    CURLcode res;
    struct curl_slist *headers = NULL;
    curl_global_init(CURL_GLOBAL_ALL);
    curl = curl_easy_init();
    if(curl)
    {
        //初始化cookie引擎
        curl_easy_setopt(curl,CURLOPT_COOKIEFILE,"");    //初始化cookie引擎,才能正确接收到cookie数据.
        curl_easy_setopt(curl,CURLOPT_FOLLOWLOCATION, 1L);

        curl_easy_setopt(curl, CURLOPT_URL,"https://passport.csdn.net/account/login");
        curl_easy_setopt(curl, CURLOPT_COOKIEJAR, "cookie_open.txt");        //把服务器发过来的cookie保存到cookie_open.txt

        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);  

        //FILE *bodyfile;
        //bodyfile = fopen("open.html","w");  

        //curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);  //写数据的回调函数存文件
        //curl_easy_setopt(curl,CURLOPT_WRITEDATA, bodyfile);

        string content;
        //设置回调函数
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writer);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &content);

        //执行http请求
        res = curl_easy_perform(curl);

        //如果执行成功,
        if(res ==  CURLE_OK)
        {
            struct curl_slist *cookies = NULL;
            curl_easy_getinfo(curl,CURLINFO_COOKIELIST,&cookies);       //获得cookie数据  

            int i=;
            while (cookies)
            {
                TRACE("[%d]: %s\n", i, cookies->data);
                cookies = cookies->next;
                i++;
            }
        }

        //再次请求的地址
        char *token_url="https://passport.csdn.net/account/login";

        //释放资源

        //fclose(bodyfile);
        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }

    curl_global_cleanup();

源地址：https://blog.csdn.net/qing666888/article/details/43623431