source: testjes/curl2.cpp

// http://curl.haxx.se/libcurl/c/libcurl-tutorial.html
#include <iostream>
#include <curl/curl.h>

size_t write_data(char *buffer, size_t size, size_t nmemb, std::string *userp)
{
  std::cerr << "write_data called\n";
  std::string s;
  size_t l = size*nmemb;
  s.resize(l+1);
  for (unsigned int i=0; i<l; i++)
    s[i] = ((char*)buffer)[i];
  s[l] = '\0';
  std::cerr << s << std::endl;
  for (size_t i=0; i<l; i++)
  {
    (*userp).push_back(buffer[i]);
  }

  return l;
}
int main()
{
  curl_global_init(CURL_GLOBAL_ALL);
  CURL *c = curl_easy_init();
  curl_easy_setopt(c,CURLOPT_URL,"http://localhost:5050/cgi-bin/prenv/aap/noot");
  std::string header;
  std::string body;
  std::string *h = &header;
  std::string *b = &body;
  curl_easy_setopt(c, CURLOPT_NOPROGRESS, 1L);
  curl_easy_setopt(c, CURLOPT_WRITEFUNCTION, write_data);
  curl_easy_setopt(c, CURLOPT_WRITEHEADER, &header);
  curl_easy_setopt(c, CURLOPT_WRITEDATA, &body);

  int rc = curl_easy_perform(c);
  std::cout << "rc from perform: " << rc << std::endl;
  std::cout << header;
  std::cout << body;
 
  /* cleanup curl stuff */ 
  curl_easy_cleanup(c);

}