[HaBo]

#include <stdio.h>
#include <curl/curl.h>

size_t interpret(void *ptr, size_t size, size_t nmemb, void *stream) {
       
    
     //crawler code
     
       
     return size*nmemb;         
}
 
 
int main(void)
  {
              
    char       *data="page=&next=&email=DINEEMAIL&pass=DEINPASSWORT&login=Einloggen",
               *filen="exe.html",
               *cookien="cookie.txt",
                error[CURL_ERROR_SIZE];
    CURL       *curl;
    CURLcode    res;  
      
    curl = curl_easy_init();    
    
    if(curl) {
    
        /**/
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, interpret);
        curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, error);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
        curl_easy_setopt(curl, CURLOPT_HEADER,1); 
        curl_easy_setopt(curl, CURLOPT_COOKIEJAR, cookien);
        curl_easy_setopt(curl, CURLOPT_URL, "http://www.studivz.net/login.php");
        /**/
        
        res = curl_easy_perform(curl);
        curl_easy_cleanup(curl);     // <= erst jetzt wird cookie geschrieben!!!
       
        if(res == CURLE_OK) {
              printf("1 : curl_easy_perform() erfolgreich ausgefuehrt\n");
              
              curl = curl_easy_init();
              
              /**/
              curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, interpret);
              curl_easy_setopt(curl, CURLOPT_COOKIEFILE, cookien);
              curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, error);
              curl_easy_setopt(curl, CURLOPT_HEADER,1); 
              curl_easy_setopt(curl, CURLOPT_URL, "http://www.studivz.net/home.php");
              /**/
              
              res = curl_easy_perform(curl);
              
              if(res == CURLE_OK) {
                     printf("2 : curl_easy_perform() erfolgreich ausgefuehrt\n");
              }
              else {
                   printf("2 : error: %s\n", error);
              }
              
        }
        else {
              printf("1 : error: %s\n", error);
       }
       
       remove(cookien);
    }
    
    curl_easy_cleanup(curl);
  
    return 0;    
}