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CURLINFO_C...DOWNLOAD_T(3) Library Functions Manual CURLINFO_C...DOWNLOAD_T(3) NAME CURLINFO_CONTENT_LENGTH_DOWNLOAD_T - 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 down- load. This is the value read from the Content-Length: field. Stores -1 if the size is not known. 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 == CURLE_OK) { /* check the size */ curl_off_t cl; result = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD_T, &cl); if(result == CURLE_OK) { printf("Download 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_UPLOAD_T(3), curl_easy_getinfo(3), curl_easy_se- topt(3) libcurl 2026-06-11 CURLINFO_C...DOWNLOAD_T(3)
NAME | SYNOPSIS | DESCRIPTION | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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