ftpgetresp.c

/*****************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * $Id: ftpgetresp.c,v 1.4 2007-07-16 21:22:12 danf Exp $
 */ 
 
#include <stdio.h>
 
#include <curl/curl.h>
#include <curl/types.h>
#include <curl/easy.h>
 
/*
 * Similar to ftpget.c but this also stores the received response-lines
 * in a separate file using our own callback!
 *
 * This functionality was introduced in libcurl 7.9.3.
 */ 
 
static size_t
write_response(void *ptr, size_t size, size_t nmemb, void *data)
{
  FILE *writehere = (FILE *)data;
  return fwrite(ptr, size, nmemb, writehere);
}
 
int main(int argc, char **argv)
{
  CURL *curl;
  CURLcode res;
  FILE *ftpfile;
  FILE *respfile;
 
  /* local file name to store the file as */ 
  ftpfile = fopen("ftp-list", "wb"); /* b is binary, needed on win32 */ 
 
  /* local file name to store the FTP server's response lines in */ 
  respfile = fopen("ftp-responses", "wb"); /* b is binary, needed on win32 */ 
 
  curl = curl_easy_init();
  if(curl) {
    /* Get a file listing from sunet */ 
    curl_easy_setopt(curl, CURLOPT_URL, "ftp://ftp.sunet.se/");
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, ftpfile);
    /* If you intend to use this on windows with a libcurl DLL, you must use
       CURLOPT_WRITEFUNCTION as well */ 
    curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, write_response);
    curl_easy_setopt(curl, CURLOPT_WRITEHEADER, respfile);
    res = curl_easy_perform(curl);
 
    /* always cleanup */ 
    curl_easy_cleanup(curl);
  }
 
  fclose(ftpfile); /* close the local file */ 
  fclose(respfile); /* close the response file */ 
 
  return 0;
}

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