Hi folks,

I am trying to use libcurl with C++ and can't bring it to work.

This is my try, which leads into an Segmentation fault while using Method C.

Any hints? Maybe somebody can send me a simple C++ Example. All Examples I
found till now were C examples.

The Segfault happens while executing _ curl_easy_perform(curl_handle); _
and only, if there is an internet connection established.

I believe I make a general Mistake with passing WriteMemoryCallback the way
I do it.

Thx in advance and greetz, Andre

Here is my code (based on a C example from the curl homepage):

-----
gethtml.h
-----
#ifndef H_GETHTML
#define H_GETHTML

#include <stdlib.h>
#include <malloc.h>
#include <iostream.h>

extern "C" {
#include <curl/curl.h>
}

class CGetHTML
{

public:

 CGetHTML();

size_t WriteMemoryCallback(void *ptr, size_t size, size_t nmemb, void
*data);

void get();

private:

 struct MemoryStruct {
  char *memory;
  size_t size;
 };

 struct MemoryStruct chunk;

};

#endif
------

------
gethtml.cpp
------
#include "../../include/gethtml.h"

CGetHTML::CGetHTML()
 {
  chunk.memory=NULL;
  chunk.size=0;
 }

size_t CGetHTML::WriteMemoryCallback(void *ptr, size_t size, size_t nmemb,
void *data){

  register int realsize = size * nmemb;
  struct MemoryStruct *mem = (struct MemoryStruct *)data;
  mem->memory = (char *)realloc(mem->memory, mem->size + realsize + 1);
  if (mem->memory) {
   memcpy(&(mem->memory[mem->size]), ptr, realsize);
   mem->size += realsize;
   mem->memory[mem->size] = 0;
  }
  return realsize;
 };

void CGetHTML::get() {

 CURL * curl_handle = curl_easy_init();
 curl_easy_setopt(curl_handle, CURLOPT_URL, "http://settlers4.net/");
 curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION,
&CGetHTML::WriteMemoryCallback);
 curl_easy_setopt(curl_handle, CURLOPT_FILE,(void *)&chunk);
 curl_easy_perform(curl_handle);
 curl_easy_cleanup(curl_handle);
};
-----
Received on 2001-10-12