CURLOPT_RANGE - set byte range to request
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RANGE, char *range);
Pass a char * as parameter, which should contain the specified range you want to
retrieve. It should be in the format "X-Y", where either X or Y may
be left out and X and Y are byte indexes.
HTTP transfers also support several intervals, separated with commas as in
. Using this kind of multiple intervals will cause
the HTTP server to send the response document in pieces (using standard MIME
separation techniques). Unfortunately, the HTTP standard (RFC 7233 section
3.1) allows servers to ignore range requests so even when you set
for a request, you may end up getting the full
response sent back.
For RTSP, the formatting of a range should follow RFC2326 Section 12.29. For
RTSP, byte ranges are not
permitted. Instead, ranges should be given in
npt, utc, or smpte formats.
Pass a NULL to this option to disable the use of ranges.
The application does not have to keep the string around after setting this
HTTP, FTP, FILE, RTSP and SFTP.
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* get the first 200 bytes */
curl_easy_setopt(curl, CURLOPT_RANGE, "0-199");
/* Perform the request */
FILE since 7.18.0, RTSP since 7.20.0
Returns CURLE_OK on success or CURLE_OUT_OF_MEMORY if there was insufficient