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Diffstat (limited to 'docs/libcurl/opts/CURLOPT_HTTP_VERSION.3')
| -rw-r--r-- | docs/libcurl/opts/CURLOPT_HTTP_VERSION.3 | 103 |
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diff --git a/docs/libcurl/opts/CURLOPT_HTTP_VERSION.3 b/docs/libcurl/opts/CURLOPT_HTTP_VERSION.3 deleted file mode 100644 index bbccda304..000000000 --- a/docs/libcurl/opts/CURLOPT_HTTP_VERSION.3 +++ /dev/null @@ -1,103 +0,0 @@ -.\" ************************************************************************** -.\" * _ _ ____ _ -.\" * 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_HTTP_VERSION 3 "17 Jun 2014" libcurl libcurl -.SH NAME -CURLOPT_HTTP_VERSION \- HTTP protocol version to use -.SH SYNOPSIS -.nf -#include <curl/curl.h> - -CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP_VERSION, long version); -.fi -.SH DESCRIPTION -Pass \fIversion\fP a long, set to one of the values described below. They ask -libcurl to use the specific HTTP versions. - -Note that the HTTP version is just a request. libcurl still prioritizes to -reuse existing connections so it might then reuse a connection using a HTTP -version you have not asked for. - -.IP CURL_HTTP_VERSION_NONE -We do not care about what version the library uses. libcurl uses whatever it -thinks fit. -.IP CURL_HTTP_VERSION_1_0 -Enforce HTTP 1.0 requests. -.IP CURL_HTTP_VERSION_1_1 -Enforce HTTP 1.1 requests. -.IP CURL_HTTP_VERSION_2_0 -Attempt HTTP 2 requests. libcurl falls back to HTTP 1.1 if HTTP 2 cannot be -negotiated with the server. (Added in 7.33.0) - -When libcurl uses HTTP/2 over HTTPS, it does not itself insist on TLS 1.2 or -higher even though that is required by the specification. A user can add this -version requirement with \fICURLOPT_SSLVERSION(3)\fP. - -The alias \fICURL_HTTP_VERSION_2\fP was added in 7.43.0 to better reflect the -actual protocol name. -.IP CURL_HTTP_VERSION_2TLS -Attempt HTTP 2 over TLS (HTTPS) only. libcurl falls back to HTTP 1.1 if HTTP 2 -cannot be negotiated with the HTTPS server. For clear text HTTP servers, -libcurl uses 1.1. (Added in 7.47.0) -.IP CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE -Issue non-TLS HTTP requests using HTTP/2 without HTTP/1.1 Upgrade. It requires -prior knowledge that the server supports HTTP/2 straight away. HTTPS requests -still do HTTP/2 the standard way with negotiated protocol version in the TLS -handshake. (Added in 7.49.0) -.IP CURL_HTTP_VERSION_3 -(Added in 7.66.0) This option makes libcurl attempt to use HTTP/3 to the host -given in the URL, with fallback to earlier HTTP versions if needed. -.IP CURL_HTTP_VERSION_3ONLY -(Added in 7.88.0) Setting this makes libcurl attempt to use HTTP/3 directly to -server given in the URL and does not downgrade to earlier HTTP version if the -server does not support HTTP/3. -.SH DEFAULT -Since curl 7.62.0: CURL_HTTP_VERSION_2TLS - -Before that: CURL_HTTP_VERSION_1_1 -.SH PROTOCOLS -HTTP -.SH EXAMPLE -.nf -CURL *curl = curl_easy_init(); -if(curl) { - CURLcode ret; - curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/"); - curl_easy_setopt(curl, CURLOPT_HTTP_VERSION, - (long)CURL_HTTP_VERSION_2TLS); - ret = curl_easy_perform(curl); - if(ret == CURLE_HTTP_RETURNED_ERROR) { - /* an HTTP response error problem */ - } -} -.fi -.SH AVAILABILITY -Along with HTTP -.SH RETURN VALUE -Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not. -.SH "SEE ALSO" -.BR CURLOPT_ALTSVC (3), -.BR CURLOPT_HTTP09_ALLOWED (3), -.BR CURLOPT_HTTP200ALIASES (3), -.BR CURLOPT_SSLVERSION (3) |