CURLOPT_MAXFILESIZE(3) Library Functions Manual CURLOPT_MAXFILESIZE(3) NAME CURLOPT_MAXFILESIZE - maximum file size allowed to download SYNOPSIS #include CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXFILESIZE, long size); DESCRIPTION Pass a long as parameter. This specifies the maximum accepted size (in bytes) of a file to download. If the file requested is found larger than this value, the transfer is aborted and CURLE_FILESIZE_EXCEEDED is returned. The file size is not always known prior to the download start, and for such transfers this option has no effect - even if the file transfer eventually ends up being larger than this given limit. If you want a limit above 2GB, use CURLOPT_MAXFILESIZE_LARGE(3). Since 8.4.0, this option also stops ongoing transfers if they reach this threshold. DEFAULT None PROTOCOLS All EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode ret; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/"); /* refuse to download if larger than 1000 bytes! */ curl_easy_setopt(curl, CURLOPT_MAXFILESIZE, 1000L); ret = curl_easy_perform(curl); } } AVAILABILITY Always RETURN VALUE Returns CURLE_OK SEE ALSO CURLOPT_MAXFILESIZE_LARGE(3), CURLOPT_MAX_RECV_SPEED_LARGE(3) libcurl April 26 2024 CURLOPT_MAXFILESIZE(3)