CURLOPT_MAXFILESIZE - maximum file size allowed to download
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXFILESIZE, long size);
Pass a long as parameter. This allows you to specify the maximum
size (in
bytes) of a file to download. If the file requested is found larger than this
value, the transfer will not start and
CURLE_FILESIZE_EXCEEDED will be
returned.
The file size is not always known prior to download, and for such files this
option has no effect even if the file transfer ends up being larger than this
given limit.
If you want a limit above 2GB, use
CURLOPT_MAXFILESIZE_LARGE(3).
None
FTP, HTTP and MQTT
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);
}
Always
Returns CURLE_OK
CURLOPT_MAXFILESIZE_LARGE(3),
CURLOPT_MAX_RECV_SPEED_LARGE(3),