84 lines
3.0 KiB
Groff
84 lines
3.0 KiB
Groff
|
.\" **************************************************************************
|
||
|
|
.\" * _ _ ____ _
|
||
|
|
.\" * Project ___| | | | _ \| |
|
||
|
|
.\" * / __| | | | |_) | |
|
||
|
|
.\" * | (__| |_| | _ <| |___
|
||
|
|
.\" * \___|\___/|_| \_\_____|
|
||
|
|
.\" *
|
||
|
|
.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
||
|
|
.\" *
|
||
|
|
.\" * This software is licensed as described in the file COPYING, which
|
||
|
|
.\" * you should have received as part of this distribution. The terms
|
||
|
|
.\" * are also available at https://curl.se/docs/copyright.html.
|
||
|
|
.\" *
|
||
|
|
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
||
|
|
.\" * copies of the Software, and permit persons to whom the Software is
|
||
|
|
.\" * furnished to do so, under the terms of the COPYING file.
|
||
|
|
.\" *
|
||
|
|
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
|
.\" * KIND, either express or implied.
|
||
|
|
.\" *
|
||
|
|
.\" * SPDX-License-Identifier: curl
|
||
|
|
.\" *
|
||
|
|
.\" **************************************************************************
|
||
|
|
.\"
|
||
|
|
.TH CURLOPT_RANGE 3 "17 Jun 2014" libcurl libcurl
|
||
|
|
.SH NAME
|
||
|
|
CURLOPT_RANGE \- byte range to request
|
||
|
|
.SH SYNOPSIS
|
||
|
|
.nf
|
||
|
|
#include <curl/curl.h>
|
||
|
|
|
||
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RANGE, char *range);
|
||
|
|
.fi
|
||
|
|
.SH DESCRIPTION
|
||
|
|
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
|
||
|
|
\fI"X-Y,N-M"\fP. Using this kind of multiple intervals causes 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 \fICURLOPT_RANGE(3)\fP
|
||
|
|
for a request, you may end up getting the full response sent back.
|
||
|
|
|
||
|
|
For RTSP, the formatting of a range should follow RFC 2326 Section 12.29. For
|
||
|
|
RTSP, byte ranges are \fBnot\fP permitted. Instead, ranges should be given in
|
||
|
|
\fBnpt\fP, \fButc\fP, or \fBsmpte\fP formats.
|
||
|
|
|
||
|
|
For HTTP PUT uploads this option should not be used, since it may conflict with
|
||
|
|
other options.
|
||
|
|
|
||
|
|
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
|
||
|
|
option.
|
||
|
|
.SH DEFAULT
|
||
|
|
NULL
|
||
|
|
.SH PROTOCOLS
|
||
|
|
HTTP, FTP, FILE, RTSP and SFTP.
|
||
|
|
.SH EXAMPLE
|
||
|
|
.nf
|
||
|
|
CURL *curl = curl_easy_init();
|
||
|
|
if(curl) {
|
||
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
|
||
|
|
|
||
|
|
/* get the first 200 bytes */
|
||
|
|
curl_easy_setopt(curl, CURLOPT_RANGE, "0-199");
|
||
|
|
|
||
|
|
/* Perform the request */
|
||
|
|
curl_easy_perform(curl);
|
||
|
|
}
|
||
|
|
.fi
|
||
|
|
.SH AVAILABILITY
|
||
|
|
FILE since 7.18.0, RTSP since 7.20.0
|
||
|
|
.SH RETURN VALUE
|
||
|
|
Returns CURLE_OK on success or
|
||
|
|
CURLE_OUT_OF_MEMORY if there was insufficient heap space.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
.BR CURLOPT_LOW_SPEED_LIMIT (3),
|
||
|
|
.BR CURLOPT_MAX_RECV_SPEED_LARGE (3),
|
||
|
|
.BR CURLOPT_MAXFILESIZE_LARGE (3),
|
||
|
|
.BR CURLOPT_RESUME_FROM (3)
|