CURLINFO_CONTENT_LENGTH_UPLOAD_T(3) Library Functions Manual
NAME
CURLINFO_CONTENT_LENGTH_UPLOAD_T - specified size of the upload
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_UPLOAD_T,
curl_off_t *content_length);
DESCRIPTION
Pass a pointer to a curl_off_t to receive the specified size of the
upload. Stores -1 if the size is not known.
This is the size set by the client prior to the transfer start. The
expected upload amount. Compare this with CURLINFO_SIZE_UPLOAD_T(3),
which is the amount of data that was actually uploaded in the end. In
many cases those two numbers are identical.
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 upload */
result = curl_easy_perform(curl);
if(result == CURLE_OK) {
/* check the size */
curl_off_t cl;
result = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_UPLOAD_T, &cl);
if(result == CURLE_OK) {
printf("Upload size: %" CURL_FORMAT_CURL_OFF_T "\n", cl);
}
}
}
}
AVAILABILITY
Added in curl 7.55.0
RETURN VALUE
curl_easy_getinfo(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_CONTENT_LENGTH_DOWNLOAD_T(3), curl_easy_getinfo(3),
curl_easy_setopt(3)
libcurl 2026-07-05
CURLINFO_CONTENT_LENGTH_UPLOAD_T(3)
curl 8.21.0 - Generated Sun Jul 5 15:31:06 CDT 2026