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                           2026-09-02
                                           CURLINFO_CONTENT_LENGTH_UPLOAD_T(3)