CURLINFO_SIZE_DOWNLOAD_T(3) Introduction to Library Functions

NAME

CURLINFO_SIZE_DOWNLOAD_T - number of downloaded bytes

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SIZE_DOWNLOAD_T,
curl_off_t *dlp);

DESCRIPTION

Pass a pointer to a curl_off_t to receive the total amount of bytes
that were downloaded. The amount is only for the latest transfer and
gets reset again for each new transfer. This counts actual payload
data, what's also commonly called body. All meta and header data is
excluded from this amount.

PROTOCOLS

This functionality affects all supported protocols

EXAMPLE

int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode result;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");

/* Perform the request */
result = curl_easy_perform(curl);

if(!result) {
/* check the size */
curl_off_t dl;
result = curl_easy_getinfo(curl, CURLINFO_SIZE_DOWNLOAD_T, &dl);
if(!result) {
printf("Downloaded %" CURL_FORMAT_CURL_OFF_T " bytes\n", dl);
}
}
}
}

AVAILABILITY

Added in curl 7.55.0

RETURN VALUE

curl_easy_setopt(3) returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non-zero means an error
occurred, see libcurl-errors(3).

SEE ALSO

CURLINFO_SIZE_DOWNLOAD(3), CURLINFO_SIZE_UPLOAD_T(3),
CURLOPT_MAXFILESIZE(3), curl_easy_getinfo(3), curl_easy_setopt(3)

libcurl 2026-01-08 CURLINFO_SIZE_DOWNLOAD_T(3)