c++ curl 登陆renren.com (cookie的使用)

size_t write_callback( void *ptr, size_t size, size_t nmemb, void *stream )
{
int len = size * nmemb;
int written = len;

if ( access( (char*)stream, 0 ) == -1 )
{
fp = fopen( (char*) stream, "wb" );
}
else
{
fp = fopen( (char*) stream, "ab" );
}
if (fp)
{
fwrite( ptr, size, nmemb, fp );
}
return written;
}

int PostUrlchar* url, void *savepath)
{
// 初始化libcurl
CURLcode return_code;
return_code = curl_global_init(CURL_GLOBAL_WIN32);
if (CURLE_OK != return_code)
return 0;
CURL *curl_handle;
CURLcode res;
curl_handle = curl_easy_init();
curl_easy_setopt(curl_handle, CURLOPT_URL, url);
curl_easy_setopt(curl_handle, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl_handle, CURLOPT_USERAGENT,"Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8");
curl_easy_setopt(curl_handle, CURLOPT_COOKIEJAR, "cookie.txt");
curl_easy_setopt(curl_handle, CURLOPT_COOKIEFILE, "cookie.txt");
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_callback);
curl_easy_setopt( curl_handle, CURLOPT_WRITEDATA, savepath );
curl_easy_setopt(curl_handle, CURLOPT_POSTFIELDS,postLoginData);
res = curl_easy_perform(curl_handle);
curl_easy_cleanup(curl_handle);
curl_global_cleanup();
if (res == CURLE_OK)
{
return 1;
}
return 0;
}

int GetUrl(string url,void *buffer)
{
// 初始化libcurl
CURLcode return_code;
return_code = curl_global_init(CURL_GLOBAL_WIN32);
if (CURLE_OK != return_code)
return 0;
CURL *easy_handle = curl_easy_init();
if (NULL == easy_handle)
{
curl_global_cleanup();
return 0;
}
// 设置easy handle属性
curl_easy_setopt(easy_handle, CURLOPT_USERAGENT,"Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8");
curl_easy_setopt(easy_handle,CURLOPT_FOLLOWLOCATION,TRUE);
curl_easy_setopt(easy_handle, CURLOPT_URL, url.c_str());
curl_easy_setopt(easy_handle, CURLOPT_WRITEFUNCTION, write_callback);
curl_easy_setopt(easy_handle, CURLOPT_WRITEDATA, buffer);
curl_easy_setopt(easy_handle, CURLOPT_COOKIEFILE,"cookie.txt");
curl_easy_setopt(easy_handle, CURLOPT_COOKIEJAR, "cookie.txt");
curl_easy_perform(easy_handle);
curl_easy_cleanup(easy_handle);
curl_global_cleanup();
return 1;
}