the attached test program seems to imply that the header bytes from
curl_easy_getinfo() are not being reset on each request:

# ./curl_test2
total time 0.00914, bytes 1048766 connect 0.008059
header bytes 190 download size 1048576.000000 request_bytes 129
total time 0.00914, bytes 2097532 connect 0.013123
header bytes 380 download size 1048576.000000 request_bytes 129
total time 0.00914, bytes 3146298 connect 0.018558
header bytes 570 download size 1048576.000000 request_bytes 129

the revision of curl is:

$ swlist | grep -i curl
  TWWcurl75 T.7.5.1.1 cURL URL grabber

running on an HP-UX 11.0 system.

is this a known problem, or is it supposed to behave that way? (seems
inconsistent with the request bytes and the download bytes

rick jones

-- 
ftp://ftp.cup.hp.com/dist/networking/misc/rachel/
these opinions are mine, all mine; HP might not want them anyway... :)
feel free to email, OR post, but please do NOT do BOTH...
my email address is raj in the cup.hp.com domain...

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include <curl/curl.h>
#include <curl/types.h>
#include <curl/easy.h>

unsigned long total_bytes = 0;
double total_time = 0.0;
double connect_time = 0.0;
double download_size = 0.0;
unsigned long header_bytes = 0L;
unsigned long request_size = 0L;

size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream)
{
  /* printf("pretended to write %d bytes\n",size*nmemb); */
  total_bytes += (size * nmemb);
  return size*nmemb;
}

int main(int argc, char **argv)
{
  CURL *curl_handle;
  char *headerfilename = "head.out";
  FILE *headerfile;
  char *bodyfilename = "body.out";
  FILE *bodyfile;

  /* init the curl session */
  curl_handle = curl_easy_init();

  /* set URL to get */
  curl_easy_setopt(curl_handle, CURLOPT_URL, "http://tardy.cup.hp.com/foo");

  /* no progress meter please */
  curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1);

  /* shut up completely */
  curl_easy_setopt(curl_handle, CURLOPT_MUTE, 1);

  /* send all data to this function */
  curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);

  /* open the files */
  headerfile = fopen(headerfilename,"w");
  if (headerfile == NULL) {
    curl_easy_cleanup(curl_handle);
    return -1;
  }
  bodyfile = fopen(bodyfilename,"w");
  if (bodyfile == NULL) {
    curl_easy_cleanup(curl_handle);
    return -1;
  }

  /* we want the headers to this file handle */
  curl_easy_setopt(curl_handle, CURLOPT_WRITEHEADER, headerfile);

  /* pass the actually download file to this file handle */
  curl_easy_setopt(curl_handle, CURLOPT_FILE, bodyfile);

  /* get it! */
  curl_easy_perform(curl_handle);

  /* retrieve some stats */

  curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME, &total_time);
  curl_easy_getinfo(curl_handle, CURLINFO_CONNECT_TIME, &connect_time);
  curl_easy_getinfo(curl_handle, CURLINFO_HEADER_SIZE, &header_bytes);
  curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD, &download_size);

  printf("total time %g, bytes %d connect %g\n",
         total_time, total_bytes, connect_time);

  curl_easy_getinfo(curl_handle, CURLINFO_REQUEST_SIZE, &request_size);

  printf("header bytes %d download size %f request_bytes %d\n",
         header_bytes,download_size,request_size);

  /* get it! */
  curl_easy_perform(curl_handle);

  /* retrieve some stats */

  curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME, &total_time);
  curl_easy_getinfo(curl_handle, CURLINFO_CONNECT_TIME, &connect_time);
  curl_easy_getinfo(curl_handle, CURLINFO_HEADER_SIZE, &header_bytes);
  curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD, &download_size);

  printf("total time %g, bytes %d connect %g\n",
         total_time, total_bytes, connect_time);

  curl_easy_getinfo(curl_handle, CURLINFO_REQUEST_SIZE, &request_size);

  printf("header bytes %d download size %f request_bytes %d\n",
         header_bytes,download_size,request_size);

  /* get it! */
  curl_easy_perform(curl_handle);

  /* retrieve some stats */

  curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME, &total_time);
  curl_easy_getinfo(curl_handle, CURLINFO_CONNECT_TIME, &connect_time);
  curl_easy_getinfo(curl_handle, CURLINFO_HEADER_SIZE, &header_bytes);
  curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD, &download_size);

  printf("total time %g, bytes %d connect %g\n",
         total_time, total_bytes, connect_time);

  curl_easy_getinfo(curl_handle, CURLINFO_REQUEST_SIZE, &request_size);

  printf("header bytes %d download size %f request_bytes %d\n",
         header_bytes,download_size,request_size);

  /* close the header file */
  fclose(headerfile);

  /* cleanup curl stuff */
  curl_easy_cleanup(curl_handle);

  return 0;
}

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Received on 2001-01-24