NAME

CURLINFO_CONTENT_LENGTH_DOWNLOAD_T - get content-length of download

SYNOPSIS

#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T,


                           curl_off_t *content_length);

DESCRIPTION

Pass a pointer to a curl_off_t to receive the content-length of the download. This is the value read from the Content-Length: field. Stores -1 if the size is not known.

PROTOCOLS

HTTP(S)

EXAMPLE

CURL *curl = curl_easy_init();
if(curl) {


  curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");


  /* Perform the request */


  res = curl_easy_perform(curl);


  if(!res) {


    /* check the size */


    curl_off_t cl;


    res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T, &cl);


    if(!res) {


      printf("Download size: %" CURL_FORMAT_CURL_OFF_T "\n", cl);


    }


  }
}

AVAILABILITY

Added in 7.55.0

RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.