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CURLINFO_CONTENT_LENGTH_DOWNLOAD_T - Man Page

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

Example

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    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.

See Also

CURLINFO_CONTENT_LENGTH_UPLOAD_T(3), curl_easy_getinfo(3), curl_easy_setopt(3)

Referenced By

curl_easy_getinfo(3), CURLINFO_CONTENT_LENGTH_DOWNLOAD(3), CURLINFO_CONTENT_LENGTH_UPLOAD(3), CURLINFO_CONTENT_LENGTH_UPLOAD_T(3).

2024-05-22 libcurl